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PowerModelsDistribution.jl Change Log

staged

  • Indicated broken tests in "2w_dy_lead" and "3-bus SOCConicUBF opf_bf" by using @test_skip

v0.15.2

  • Added transformation reduce_line_series! which will reduce lines that consist of only buses with no additional connections to a single line.
  • Added function solve_mn_mc_opf_oltc for multi-networks
  • Fixed bug in DssLine parser where c1 was being set to c0
  • Fixed native pf unit tests, which assume no virtual branches from switches (applied make_lossless! before test)
  • Added g_fr, g_to, b_fr, b_to to switches in dss2eng and eng2math
  • Fixed bug in parsing of dss lines where switch=y actually implies x1=1, x0=1, r1=1, r0=1, c1=1.1, c0=1, length=0.001, and units=none

v0.15.1

  • Added transformation to remove center-tap (distribution) transformers and replace them with equivalenced lines

v0.15.0

  • Fixed bug where filename vector was not being passed through from raw dss to eng data structs
  • Fixed bug where controls for transformer banks with phases not starting with 1 would throw a parsing error due to the wrong conductor identifier c
  • Fixed bug where . chars in dss object names would cause part of the name of the object to get dropped
  • Fixed bug where var(pm, :p) and var(pm, :q) in the IVRUPowerModel formulation were being overwritten by transformer and switch variable functions
  • Rewrite of dss parser for increased robustness and to avoid edge cases. Instead of parsing raw dss into Dicts, we use vectors of string pairs to preserve the order of commands. This more closely replicates proper dss parsing (breaking)
  • Rewrite of dss2eng transformation function to support new dss data model (breaking)
  • Added new structs and abstract types for data models to support dss parser rewrite, including interfaces so that these new objects can be interacted with similarly to Dicts, to aid in transition to new dss data model

v0.14.9

  • Fixed failing unit test capcontrol_fotr on Julia 1 - macOS-latest - x64
  • Add native power flow solver by using compute_mc_pf(data_math)
  • Fixed bug in build_mc_pf where constraint_mc_storage_power_setpoint_real was being applied to all storage objects, and not just ones on PV buses
  • Fixed implementation of polynomial nonlinear (nl) costs above quadratic in objective.jl

v0.14.8

  • Fixed bug in _map_eng2math_voltage_source! where pg and qg were getting set to zero instead trying to get them from the eng_obj first
  • Fixed bug in LPUBFDiagModel constraint_mc_load_power where the format of the constraint would lead to infeasibilities
  • Fixed bug in dss parser that did not recognize // as token for inline comments

v0.14.7

  • Added loads/generator models (240V devices) connected between two secondary terminals of center-tapped transformers for SOC formulation
  • Fixed bug with SOC and LinDist3Flow formulations where diagonal entries of matrix variables were defined with type Vector{JuMP.VariableRef} (no information about connections) instead of JuMP.Containers.DenseAxisArray, leading to errors when single- or two-phase nodes were present in network
  • Fixed bug in _calc_bus_vm_ll_bounds where default min vdmin_eps was not being used, leading to invalid Inf bounds

v0.14.6

  • Fixed voltage_source impedance matrices, which were populating impedances outside of 1:nphases with zeros instead of the defined mutual and self impedances #422 #376
  • Added compat for SpecialFunctions
  • Added support for computing line constants from WireData, LineGeometry, LineSpacing, TSData and CNData
  • Added Julia library SpecialFunctions for besselj0 implementation
  • Changed message that line is "being treated as superconducting" from @info to @debug
  • Added support for WireData, LineGeometry, LineSpacing, TSData, and CNData dss objects
  • Fixed bug in dss parser where when properties were assigned via assign_property!, the prop_order was not updated
  • Updated CI workflows to used Nodejs v16 scripts
  • Added UBF matrix power variables for switches #423

v0.14.5

  • Fixed bug in dss parser where properties assigned via assign_property! would fail if the object they applied to was not created in the same file #397
  • Fixed bug in get_defined_buses to check if "bus" property is a Vector instead of checking if it is a String #416
  • Fixed bug in _map_eng2math_bus!() regarding calculation of shunt element susceptance parameter
  • Added SOC transformer relaxations
  • Fixed bugs in center-tap transformer modeling
  • Add wye-connected CapControl for IVR and FOT (polar) formulations
  • Fixed indexing issue for single-phase delta load models in linear formulations (LinDist3Flow, FOTP, FOTR, FBS)
  • Added ZIP load model
  • Updated documentation in make_multiconductor! to better indicate its unsupported nature
  • Added automatic detection of multinetwork data to instantiate_mc_model
  • Converted ::Float64 types in function signatures to ::Real
  • Fixed bug in parse_file in .dss files with character UTF-8 0x09 (Tabulation) #394

v0.14.4

  • Fixed bug in apply_voltage_bounds! for multinetwork data
  • Added compat for JuMP v1
  • Fixed bug in _map_eng2math where global keys were not being propagated in multinetwork
  • Fixed bug/typo in _create_storage where kwhstored was derived from :stored instead of Symbol("%stored")
  • Fixed bug in function _dss2eng_loadshape!() where qmult data was overwriting pmult data #386

v0.14.3

  • Fixed bug in dss parser where circuit was not being edited using the edit dss command
  • Fixed bug in eng2math functions where the voltage angle was being set incorrectly for generation assets that were set to isochronous control mode

v0.14.2

  • Fixed failing unit test "3-bus SOCConicUBF opf_bf" for Windows
  • Updated minimum Julia requirement to v1.6 (LTS) #382
  • Added compat for JuMP v0.23, Ipopt v1.0, SCS v1.1, PolyhedralRelaxations v0.3.3
  • Dropped support for SCS 0.8 in Unit tests (0.9 no longer supports eps option)
  • Fixed bug in remove_all_bounds! where an || was not enclosed in parentheses
  • Changed remaining instances of Int64 to Int for better compatibility #382
  • Fixed bug in create_solar where kwargs were not being utilized #380
  • Fixed bug in create_storage where datatypes were inconsistent with documentation #379
  • Added check for missing vbase in apply_voltage_bounds! transformation
  • Refactored constraint_mc_power_balance_capc(pm::LPUBFDiagModel, ...) to be more consistent with other versions, for easier debugging
  • Removed Cbc, Juniper from unit tests (not being utilized in tests)
  • Removed explicit field copying from voltage_source math2eng solution conversion (now copies all fields)
  • Fixed bug in _calc_branch_series_current_max where vmin_to used bus_fr instead of bus_to #378

v0.14.1

  • Fix variable_mc_capcontrol keyword arguments

v0.14.0

  • Drop support for JuMP < v0.22

v0.13.3

  • Refactored functions to remove kwargs in many cases of constraints/variables
  • Fixed bugs in NFAU constraints/variables
  • Fixed bug where no solution would result in an error, instead of empty solution

v0.13.2

  • Fixed issue with looped edge components in ref (i.e., if f_bus==t_bus)
  • Added linear relaxation of ampacity constraints (remove quadatric)
  • Fixed on-off storage variable start value

v0.13.1

  • Fixed 1phase-pv unit tests
  • Adjusted sbase_default, and added @info if basemva from dss is the default value
  • Fixed storage model for powerflow validation (new test values are based directly on dss outputs)
  • Added con(pm, nw, :ohms_yt, f_idx) to store ohms constraints
  • Added constraint_mc_branch_flow for effective zero impedance branches in Bus Injection models, including con(pm, nw, :branch_flow, i) to store the constraints
  • Fixed broken capcontrol test
  • Fixed broken storage tests
  • Fixed data model unit tests
  • Updated to add InfrastructureModels v0.7
  • Fixed wrong kvar in storage dss struct
  • Updated default pg in solar object when parsing from dss to use pmpp and irradiance
  • Fixed missing solar in 1-to-1 maps for eng2math
  • Fixed default vad_lb and vad_ub in create_line
  • Fixed bug in create_voltage_source where the voltage angles va were all zero
  • Updated storage parsing to use kva instead of kvar for qs_lb and qs_ub (storage in dss is defined to be able to handle any reactive power up to the thermal limit of the inverter)
  • Fixed make_lossless! to adjust how switches are made lossless
  • Fixed voltage sqr variable start values
  • Fixed p/q variable start values
  • Added missing temperature on pvsystem
  • Added configuration=WYE to voltage sources
  • Fixed bug in voltage angle variable start values
  • Fixed bug with case sensitive filenames by using Glob.glob with Glob.FilenameMatch
  • Fixed bug in constraint_mc_switch_current_limit where voltage variables being used were wrong
  • Moved all import statements to root PowerModelsDistribution
  • Fixed bug in _calc_transformer_current_max_frto where sm_ub should have been divided by vmin, NOT vmax
  • Updates LPUBFDiagModel description in docs

v0.13.0

  • Fixed bug in constraint_mc_theta_ref where default va_ref was in wrong units
  • Fixed bug in call to constraint_capacitor_on_off where nw network id was not being passed
  • Refactored kwargs kron_reduced and phase_projected to be kron_reduce and phase_project, respectively
  • Added more native support for multinetwork data structures
  • Changed "multiple references buses found" warning to @debug
  • Added multinetwork versions of data model transformation functions using apply_pmd!
  • Added propagate_network_topology!, a helper function to propagate the status of buses to connected components
  • Updated Documentation on Storage data model
  • Added LPUBFDiag version of constraint_mc_storage_thermal_limit using PolyhedralRelaxations to relax the quadratic constraints
  • Fixed bug in reporting duals (typo in ampacity constraint functions) (#367)
  • Changed multiconductor storage model parsing from opendss to be single values (instead of creating some multiconductor values, making assumptions about split between phases)
  • Fixed vm, va variable starts in ACRU and ACPU forms
  • Fixed boundless LPUBFDiagModel constraint_mc_transformer_power_yy with controls
  • Fixed ACPUPowerModel vm,va variable starts
  • Updated FOTPU, FOTRU and FBS models for consistency with other formulations
  • Fixed bug in make_lossless!
  • Updated correct_bus_types! to be knowledgable about islands in the network data
  • Changed warning to @warn
  • Added storage to solve_mc_opf_oltc_capc problems
  • Fixed bug in parsing of null values from JSON
  • Changed cm_ub on storage parsing to sm_ub to be consistent with what the parsed value actually is
  • Fixed bug in cm_ub parsing on lines
  • Updated constraint_mc_transformer_power_yy(pm::LPUBFDiagModel) to be truly LP
  • Updated ACRUPowerModel voltage start value computation
  • Fixed bug in dimensionalize_math, where sc_on, and sd_on were included under storage (non-dimensional values should not be scaled)
  • Removed sm_ub_b, cm_ub_b, sm_ub_c, cm_ub_c from kron reduction (fields no longer exist)
  • Updated make_lossless! to make the model truly lossless, by including all line parameters
  • Added adjust_transformer_limits! to multiple transformer variable bounds
  • Added transformations adjust_small_line_impedances!, adjust_small_line_admittances!, adjust_small_line_lengths!, to help prune bad eng-model data
  • Fixed set_time_elapsed! multinetwork function to update "time" and "mn_lookup"
  • Added "status" to transformer decomposition functions
  • Updated eng2math functions to have consistent usage of "status" from eng model
  • Updated variable_mc_storage_power_mi to have explicit kwargs
  • Updated on_off variable functions to ensure zeros are included in variable bounds
  • Changed "multiple reference buses found" warning to @info
  • Added LP version of constraint_storage_complementarity_nl
  • Added PolyhedralRelaxations.jl as a dependency for relaxing quadratic and bivariate constraints
  • Fixed voltage warm start in FBSUBFModel form
  • Added functions necessary for capc and oltc in NFAUPowerModel
  • Fixed bug in FBSUBFModel formulation, where transformer variables were being created in their matrix form
  • Fixed bug in parsing of dss generator objects, which didn't take into account pf
  • Fixed oltc in LPUBFDiagPowerModel, which was previously a @NLconstraint to now use @constraint
  • Fixed bug in constraint_mc_power_balance_capc::AbstractUnbalancedACPModel, where @smart_constraint was failing due to missing variable
  • Fixed bug in start values for tap variables
  • Refactored _calc_branch_power_max and _calc_branch_current_max to be more robust
  • Added solve_mc_opf_oltc_capc problem, which includes both solve_mc_opf_oltc and solve_mc_opf_capc features
  • Added kwarg to apply_voltage_bounds! to exclude some buses
  • Added adjust_line_limits! transformation function
  • Added support for parsing sm_ub from dss to transformers (comes from emerghkva)
  • Fixed bug in capc problems where switches were not considered as a control element for capacitors
  • Fixed bug in _create_xfmrcode where :bus was included in iteration
  • Added missing constraint_mc_ampacity_from and constraint_mc_ampacity_to constraints in opf_oltc problems
  • Fixed bug in NFAUPowerModel formulation, where variable_mc_transformer_power_real was incorrectly setting up transformer power variables
  • Fixed bug in calc_voltage_bases where if a transformer configuration was in xfmrcode, the function would error
  • Added data transformations remove_line_limits! and remove_transformer_limits!, to remove current/power bounds on lines, linecodes, switches, and transformers
  • Fixed bug in linecode objects where cm_ub or sm_ub were not being passed correctly to lines
  • Added capability to infer number of phases from supported dss objects
  • Fixed bug in calc_connected_components where function signature was incorrect

v0.12.0

  • Fixed issue of missing va on reference buses which have been selected automatically
  • Fixed PVSystem fields and defaults based on latest version
  • Added support for action=normalize on dss LoadShapes
  • Fixed bug in dss LoadShape where useactual=yes was the default, whereas useactual=no is the real default
  • Removed remaining PowerModels files / dependency from unit tests
  • Changed sbase_default to 1.0 by default, because often with default solver settings, constraints were ignored for being far too small
  • Changed to use emergamps from dss for cm_ub on lines by default (higher limit)
  • Fixed bug in transformer math2eng conversion where tap was not carried to the solution
  • Fixed wrong index in constraint_mc_theta_ref for ACRUPowerModel
  • Fixed Type collections; AbstractUBFModels do not necessarily have to have w variables, so these are explicity spelled out now
  • Added ampacity (current limit) constraints for branches and switches, which better reflect standard input data: constraint_mc_ampacity_from and constraint_mc_ampacity_to for branches, and constraint_mc_switch_ampacity for switches
  • Fixed bug in bank_transformers! function where status field was not being set correctly
  • Updated switch thermal constraints to store the constraints in con(pm, nw, :mu_sm_switch, f_idx)
  • Removed extraneous thermal limit constraints from power flow problem formulations
  • Fixed the function signature for variable_mc_capacitor_switch_state and variable_mc_capcontrol to match conventions
  • Removed depreciated run_ functions, which were replaced in with solve_ functions in v0.10.2
  • Fixed bug in make_multinetwork! where inferred time_elapsed was not being used
  • Fixed bug in make_multinetwork! for cases where replace=false was used where we needed a deepcopy
  • Added explicit neutral formulations
  • Fix bug in constraint_mc_switch_thermal_limit where switch property name contained a typo
  • Fix bug in constraint_mc_thermal_limit_from where Inf values in rate_a would lead to an error
  • Fix bug in correct_branch_directions! where f_connections and t_connections were not being swapped
  • Fix bug in _rebase_pu_branch! where current ratings were being non-dimensionalized with the power base instead of the current base, and added non-dimensionalization for power ratings
  • Fix bug in _rebase_pu_switch! where current ratings were being non-dimensionalized with the power base instead of the current base, and added non-dimensionalization for power ratings
  • The qualifier t was removed from the transformer solution properties, i.e. crt->cr, to be consistent with solution naming conventions where these qualifiers are omitted as they are contained in a transformer component dictionary, unlike the variables

v0.11.10

  • Fixed bug in eng2math conversion of buses, where the status was not correctly parsed, so DISABLED buses were not getting set to bus_type = 4

v0.11.9

  • Fixed bug in apply_kron_reduction! where not all transformers were getting kron reduced
  • Fixed typos in documentation

v0.11.8

  • Fixed bug in LPUBFDiagModel transformer variables
  • Removed phase projection of only wye-connected transformers (left over), phase projection of delta components remains for now
  • Updated time_series to affect upper real and reactive power bounds on solar objects in dss2eng parse
  • Fixed bug in dss pvsystem struct where temperature, pmpp, and irradiance were the wrong type (Int instead of Float64)
  • Fixed bug in dss node structs, where daily was the wrong type (should be String, not Vector{Float64})
  • Fixed bug in _calc_branch_power_max where c_rating_b was being used
  • Add support for storage to OPF_OLTC
  • Add wye-connected CapControl for ACP, ACR, LinDist3Flow, FBS and FOT formulations

v0.11.7

  • Added storage to correct_bus_types! check
  • Updated start values for some variables to improve performance on some solvers
  • Added ability for comp_start_value to sequentially check for a series of keys for a start value
  • Added FOT linear formulation in rectangular coordinate frame
  • Fixed lower voltage magnitude limits for FBS linear formulation
  • Fix bug where the lower and upper bound variables created in variable_mx_hermitian can be the wrong type
  • Fix bug in correct_bus_types! and eng2math functions where reference bus was being overwritten depending on the order generation objects were parsed
  • Fix calc_max_cost_index to support multi-infrastructure data

v0.11.6

  • Fix voltage magnitude start values, by looking for _start values, then vm, then vmin, to ensure start values are feasible
  • Fix bug in _biggest_generator where if generator upper bound is missing, correct_bus_types! would fail
  • Adds simple transformer bounds calculations in _calc_transformer_power_ub_frto and _calc_transformer_current_max_frto
  • Updated usage of control_mode property on generation objects, such that ISOCHRONOUS leads to bus_type=3, FREQUENCYDROOP leads to bus_type=2, and status being DISABLED leads to bus_type=1
  • Fixed bug in make_solution_si where an error would occur if the solution was empty
  • Fixed bug in build_mn_mc_mld_simple(pm::AbstractUBFModel) where call to constraint_mc_switch_thermal_limit was missing keyword argument nw=n
  • Added simplified linear formulation using first-order Taylor (FOT) approximation
  • Added wye-connected RegControl for ACP, ACR, LinDist3Flow and FBS formulations

v0.11.5

  • Fixed typo in transform_data_model where global_keys should have been global_keys=global_keys
  • Added power variables Pt and Qt for transformers to AbstractUBFModels
  • Updated _add_gen_cost_model! to have a default cost vector that is [1.0, 0.0] instead of including a redundant first 0.0
  • Fixed bug in eng2math functions where there was no check on generator or storage objects when assigning bus_type on their bus to see if the gen obj was enabled or disabled
  • Fixed bug in sol_data_model for W-space models where if the optimizer allowed some small infeasibility, it was possible to have a negative w value, which would crash when attempting to take the square-root
  • Added build_solution_values for data of type LinearAlgebra.Symmetric{JuMP.VariableRef, Matrix{JuMP.VariableRef}}
  • Fixed bug in solution builder where building a result dict would fail if there was no solution
  • Added "root-level" eng2math_passthrough option
  • Fixed bug where global keys were not getting passed to _map_eng2math function
  • Added support for parsing the results of dss command export voltages into vm_start and va_start values for warm starting bus voltages
  • Added simplified linear UBF formulation using a single iteration of forward-backward sweep (FBS)
  • Added support for raw parsing of RegControl and CapControl objects from dss
  • Added delta/voltage-dependent loads to LinDist3Flow formulation

v0.11.4

  • Fix bug in _bank_transformers! where "status" field was not being added to banked transformers
  • Fix bug in identify_load_blocks where even fixed OPEN switches were being included in a block
  • Fix eng2math conversion of switches, check for whether to create impedance branches was malformed

v0.11.3

  • Fix _fix_nulls data type conversion for vectors from JSON inputs
  • Fix which variables from switch impedance branches get pulled into eng solution (add series current)
  • Add power variables to solution for IVRUPowerModel to switches, similar to how they're implemented for branches
  • Fix missing branch variables csr_fr and csi_fr from ibase unit conversions
  • Fix apply_kron_reduction! to recalculate the conductor_ids after the reduction
  • Fix bug in transformer tap variable creation, where report variable was over all transformers instead of just ones with unfixed taps
  • Fix bug in current bounds calc for branches, where if c_rating_a was missing, calc would fail
  • Fix bug in eng2math conversion where "is_kron_reduced" was being looked for in the wrong place
  • Fix solar pg/qg bounds calculation in dss2eng parsing (needed to be / nphases)
  • Add ability for control_mode on generation objects to get bus_type on connecting buses
  • Fix bug in function signature of calc_voltage_bases
  • Fix bug introduced when changing construction of vbases_default in settings
  • Changed Gcap calculation in reactor object parsing to use own kv value, instead of system basekv
  • Added control_mode and vg to gen object in vsource eng2math conversion
  • Fixed bug in apply_phase_projection_delta! where some padding was out of order, which could pose a problem when apply_voltage_bounds! was used
  • Changed default angmin/angmax on virtual branches to +-10deg
  • Fixed missing factor sqrt(nphases) from vg definition on generator and solar objects
  • Fixed bug in voltage source vnom determination, and now uses basekv from vsources to populate vbases_default
  • Fixed unit conversion bug in calculating the power rating of branches from current ratings, and uses emergamps first, if it exists
  • Fixed typo in _calc_connected_components_math, where edge_type::String was used instead of edge_obj::Dict to check properties
  • Fixed bug in constraint_mc_transformer_power constraint template, where nw was missing from call to ref

v0.11.2

  • Fixed solve_ functions; they were missing make_pu_extensions kwargs
  • Fixed _init_math_obj, if an object is not defined in the built-in 1to1 map const, it would error
  • Fixed method for user-defining custom math2eng functions
  • Fixed documentation for transform_solution

v0.11.1

  • Added iseng and ismath helper functions
  • Added dss2eng_extensions, for custom user functions for dss2eng transformations
  • Added eng2math_extensions, for custom user functions for eng2math transformations
  • Added eng2math_passthrough, for easily passing through properties from eng2math
  • Added make_pu_extensions, for custom user functions to convert additional properties to per-unit
  • Added make_si_extensions, for custom user functions to convert additional variable results back to SI units
  • Added dimensionalize_math_extensions, for easily specifying multiplicative factors on additional variable results for converting back to SI units
  • Added global_keys, for users to easily add to global keys which making multinetworks
  • Added documentation on how to add math2eng custom functions for transforming solutions back to ENGINEERING model
  • Documentation overhaul, new organization, updated docstrings, Pluto notebook building
  • Improve parse of ZIPV into array, and update "duty" on loads to better default
  • Add support for parsing GrowthShape objects
  • Miscellaneous code comment corrections
  • Refactor to use Type[] instead of Vector{Type}([]) internally for easier reading of code
  • Add section on import_all to beginners guide
  • Update default %cutin and %cutout to be 20.0 on pvsystem objects
  • Fix objective_mc_max_load_setpoint to remove iteration over "conductor_ids"
  • Fix constraint_mc_voltage_magnitude_bounds to have default (0,Inf) bounds the length of "terminals", rather than 3 phases.
  • Updated UBF version of power flow problem to re-enable bounded=false of bus voltage variables
  • Add more descriptive error message for islanded models when attempting to calculate voltage bases
  • Add check_enabled toggle to calc_connected_components
  • Updated documentation to reflect correct definition of multiple buses in a vector on transformers using bus instead of buses
  • Fixed bug for eng transformers in calc_connected_components

v0.11.0

  • Removed PowerModels.jl as a dependency, porting over any remaining dependencies (breaking) [see PR #336 for complete list of functions]
  • Rename the formulation type heiracrhy to include Unbalanced, or U in the names (breaking) [see PR #336 for complete list]
  • Removed Memento.jl as a dependency, and added LoggingExtras, to assist in creating easy log filters for PMD via the Julia stdlib
    • Added silence!, set_logging_level!, reset_logging_level!, and restore_global_logger! helper functions
  • Upgraded to InfrastructureModels v0.6 to support multi-infrastructure models (breaking)
  • Refactor multinetwork functionality, and added helper functions for better multinetwork data handling (breaking)
    • Renames build_multinetwork kwarg to multinetwork
    • Exports make_multinetwork function to users
    • Adds set_time_elapsed!, sort_multinetwork! helper functions
    • Updates _pmd_eng_global_keys and _pmd_math_global_keys
  • Refactor ENGINEERING data model to allow only dict types Dict{String,<:Any} (breaking)
  • Refactor conductor ids types to allow only Int (breaking)
  • Refactor JSON serialization to eliminate special serializers and create special data correction function for importing (breaking)
  • Convert IJulia notebooks in examples to Pluto.jl notebooks for better interactivity
  • Add apply_voltage_angle_difference_bounds! transformation function
  • Remove references to dcline
  • Fix source_id in MATHEMATICAL model to originate from ENGINEERING model, rather that be passed from dss

v0.10.5

  • Add wdgcurrents, core, rdcohms support on dss transformers
  • Fix bug in definition of xcsarra datatype on dss transformers
  • Fix bug in opendss2pmd line parser, which would error on reshape of rmatrix, xmatrix, cmatrix when explicitly grounded and those matrices defined on line and not linecode
  • Fix bug in datatype guesser _guess_dtype
  • Add support for setbusxy dss command
  • Fix parsing of dss matrices and arrays with mixed delimiters (i.e., mixing commas and spaces)
  • Fix bug in dss parser to better support object= syntax
  • Add support for parsing of spectrum dss objects
  • Docs updates

v0.10.4

  • Add support for filetype autodetection, will be slower for large files, and filetype is better to explicitly specify in those cases
  • Fix overly restrictive type enforcement in parse_dss and parse_opendss from IOStream to IO
  • Fix bug in parsing of properties starting with % on pvsystem and storage objects
  • Fix bug in parsing of storage kva, kvar, and pf on storage objects

v0.10.3

  • Fix bug in parsing of storage power loss parameters, which were derived from values specified in percent, not decimal
  • Add support for %stored to be used to derive kwhstored if not specified explicitly
  • Fix bug in buscoords parser where comments at the end of the line were not stripped

v0.10.2

  • add exclude kwarg to remove_all_bounds! transformation, to selectively exclude certain asset types
  • fix bug in IVR transformer current variables where bounds needed to be iterated over their connections to be applied
  • fix bug in objective function for opf_pbs debugging problem, wrong iteration over bus terminals
  • fix typo in variable_mc_switch_current_imaginary that overwrote real variables (crsw)
  • fix bug in _map_eng2math_switch! where vmin/vmax were taken from f_bus instead of t_bus
  • fix bug in _build_eng_multinetwork, where "dss_options" was missing from const _pmd_eng_global_keys
  • change enums (SwitchState and Dispatchable) for switches to Reals, was causing problems in loops of OSW problems
  • fix bug in variable_mc_bus_voltage_magnitude_sqr and variable_mc_transformer_power_imaginary where _start values were not being iterated over per connection
  • depreciate run_ functions in favor of solve_
  • add support for relax_integrality (InfrastructureModels ~0.5.4)
  • fix bug in variable_mx_real constructor where it was indexing over terminals instead of enumerates
  • added storage variables to automatic unit conversion to si units on math2eng transformation

v0.10.1

  • Fix buspairs ref not getting built
  • Fix bug in storage linear constraints and mixed integer variable instantiation
  • Add support for ideal (lossless) switches
  • Fix bug in handling of dss edit command
  • Fix bug in correctly tracking current transformer winding
  • Fixes bug in assignment of variables' start values over active conductors/connections

v0.10.0

  • Refactor variables, constraints, objectives to support iterating over arbitrary connections/terminals (breaking)
  • Add ref_add_connections! that adds lists of connections to ref for each component (breaking)
  • Rename constraint and variable functions to better match PowerModels conventions (breaking)
    • variable_mc_gen_power_setpoint -> variable_mc_generator_power
    • variable_mc_gen_power_setpoint_on_off -> variable_mc_generator_power_on_off
    • constraint_mc_gen_setpoint -> constraint_mc_generator_power
    • constraint_mc_slack_power_balance -> constraint_mc_power_balance_slack
    • constraint_mc_shed_power_balance -> constraint_mc_power_balance_shed
    • constraint_mc_load_power_balance -> constraint_mc_power_balance
    • variable_mc_load_setpoint -> variable_mc_load_power
    • constraint_mc_load_setpoint -> constraint_mc_load_power
  • Updates objective function for MLD problem (breaking)
  • Add correct_mc_voltage_angle_differences, correct_mc_thermal_limits
  • Removed support for JuMP < v0.21 (breaking)
  • Overrides _objective_min_fuel_cost_polynomial_linquad from PowerModels to support arbitrary connections on generators
  • Updated solution building functions to automatically parse arbitrarily-sized vectors of variables into solutions
  • Changed Array{...,1} to Vector{...} and Array{...,2} to Matrix{...}
  • Removes phase projection by default, but keeps phase projection for delta connected components for now (breaking)
  • Adds apply_phase_projection_delta! to project phases of delta connected components
  • Fixes grounding logic for generator and solar objects
  • Fixes bug in parsing of file paths on windows in redirect/compile dss commands
  • Adds multiconductor version of the OPF objective function objective_mc_min_fuel_cost
  • Update publication in README
  • Fixes bug in json parser (typo)
  • Fixes bug in dss parser that skips some files with same names as previously parsed files

v0.9.3

  • Fix bug in buscoords parser to support more valid buscoords files
  • Fix bug in parse_json(::String) which passed additional unused argument to parse_json(::IO)

v0.9.2

  • Add possibility to give vm_start in variable_mc_voltage for ivr and acr formulations
  • Remove leftover code that was causing a warning on import, but was not breaking the implementation
  • Add multinetwork MLD and OPF problem specifications

v0.9.1

  • Add support for storage components and mld problem in ACR formulation
  • Add storage variables and constraints to OPF, PF, and MLD problems
  • Fix bug in con mapping in power balance constraints where an array was expected
  • Fix bug in constraint_mc_shed_power_balance where Gt, Bt were not defined
  • Fix bug in the status of virtual branches created from switches where the status of the switch was not taken into account, only the state
  • Fix bug in transformer parsing where status wasn't being included
  • Fix constraint for PV buses, which were attempting to be applied in places where vm was not specified
  • Fix bug in type enforcement of map argument in transform_solution
  • Fix storage parsing including unit conversion and inclusion of time_elapsed from the root level
  • Add wye-wye and delta-wye constraints to LPUBFDiagModel formulation
  • Fix typo in ivr formulation line 548, was var(pm, nw, :crg_bus, id) now is var(pm, nw, :cig_bus, id)
  • Fix missing / incorrect type of some properties on lines in opendss parser (#290)
  • Fix connections-determining-code on solar and storage objects to generator object syntax (#291)
  • Refactors Kron reduction and padding transformations out of eng2math into their own transformation functions (#287)
  • Add functionality of run_mc_mld_bf to run_mc_mld via multiple dispatch
  • Fixes inconsistency of connections on MATHEMATICAL components, in particular, virtual objects (#280)
  • Add a transformation remove_all_bounds! that removes all fields ending in _ub and _lb (#278)
  • Add missing connections for virtual generator at voltage source
  • Fix pu conversion bus voltage bounds and add parsing for vm_pair_lb and vm_pair_ub
  • Add CONTRIBUTING.md
  • Add pull request template
  • Add Pull Request Checks (Github Actions), to inform developers of potentially missing aspects of their PR
  • Store references for power balance constraints

v0.9.0

  • Add instantiate_mc_model to aid in building JuMP model from ENGINEERING data model
  • SDP and SOC relaxations were broken but are fixed again (unit tests added)
  • Remove run_mc_opf_iv, run_mc_opf_bf, run_mc_opf_bf_lm, run_mc_pf_bf, run_mc_pf_iv, these can be accessed by using the correct formulation with run_mc_opf and run_mc_pf
  • Add support for Memento 1.1
  • Add support for PowerModels v0.17 (breaking)
  • Add support for InfrastructureModels v0.5
  • Updates JSON parser to handle enum ("data_model" values)
  • Adds some commonly used InfrastructureModels and PowerModels functions as exports
  • Adds model building functions add_{component}! to aid in building simple models for testing (experimental)
  • Add run_mc_model (adds ref_add_arcs_transformer! to ref_extensions, and sets multiconductor=true by default) (breaking)
  • Rename ref_add_arcs_trans -> ref_add_arcs_transformer (breaking)
  • Update count_nodes, now counts source nodes as well, excludes _virtual objects
  • Change _PMs and _IMs to _PM, _IM, respectively
  • Add example for PowerModelsDistribution usage (see Jupyter notebooks in /examples)
  • Update transformer mathematical model
  • Introduce new data models: ENGINEERING, MATHEMATICAL (see data model documentation) (breaking)
  • Update DSS parser to be more robust, and parse into new format (breaking)
  • Updates DSS paser to parse more options/commands, moves these into "options" dict (breaking)
  • Updates how dss like is applied to better match opendss (almost all properties are copied with like) (breaking)
  • Add support for new OpenDSS components (loadshape, xfmrcode, xycurve)
  • Add support for JuMP v0.22 (exports optimizer_with_attributtes by default)
  • Add support for PowerModels v0.16 (breaking)
  • Add support for Memento v0.13, v1.0

v0.8.1

  • Update to support JuMP v0.21
  • Makes bounds optional, turned on by default (#250)
  • Updated transformer data model in the mathematical model (#250)
  • Add automatic parsing of lon,lat from buscoords file into PowerModelsDistribution data structure (#245, #249)
  • Updates virtual_sourcebus, which is intended to represent a voltage source, to have a fixed voltage magnitude (#246,#248)
  • Add parsing of series data files into array fields in OpenDSS parser
  • Add LoadShape parsing to OpenDSS parser (#247)
  • The pf and opf problem specifications now contain delta connected, and voltage-dependent load models by default; pf_lm and opf_lm were removed.
  • Generators can now also be connected in both delta and wye.
  • The delta/voltage-dependent loads in the ACP power models were refactored to be consistent with the new ones.
  • The non-linear formulations now support matrix shunts.
  • A current-voltage (IVR) formulation was added, and supports all features that ACP supports as well.
  • Several power balance constraints now require NLconstraints because the load power/current can contain a NLexpression. This might be optimized further in the future if it leads to performance issues.

v0.8.0

  • Update solution building infrastructure (PowerModels #77) (breaking). The reported solution is now consistent with the variable space of the formulation.
  • Moved multi-conductor support from PowerModels into PowerModelsDistribution. (breaking)
  • PowerModels.var no longer takes conductor as an argument
  • Constraints have been (partially) re-written to use vectorized JuMP syntax where possible.
  • Bugfixes: generator on-off and storage on-off constraints were incorrect
  • Removal of SOCWRPowerModel
  • Drop support for matpower format
  • Possible regressions in MLD problem types
  • Simplified linear UBF formulations. LPLinUBFModel and LPdiagUBFModel are equivalent, and are replaced by LPUBFDiagModel. The more popular name 'LinDist3FlowModel' was added as an alias for LPUBFDiagModel.
  • The linearization by Gan & Low is also equivalent to LPUBFDiagModel, though it has redundudant variables and equations. LPfullUBFModel is now implemented as an alias of LPUBFDiagModel, 'LPUBFFullModel'.

v0.7.0

  • Updates function names for PowerModels v0.14 compatibility (breaking) (#194)

v0.6.1

  • Fixed bug with new default SCS settings causing tests to fail (#190)
  • Changed unit test '5-bus independent radial different sdpubf opf_bf', testing vm instead of qg
  • Added exponential load models, including convex relaxations
  • Refactored branch flow relaxations
  • Added helper functions for creating matrix variables
  • Cleaned up the transformer/oltc methods, including ACP formulation
  • added rate_a setting to virtual lines (#185, #186)

v0.6.0

  • Adds count_nodes function to count the number of nodes in a parsed network (#183)
  • Exports find_bus and find_component functions for better user experience (#183)
  • Fixed solution_bf! for branch flow solution building (#182)
  • Refactored problem definitions to remove any explicit loops over conductors (#181)
  • Added data format documentation (#180)
  • Moved storage to main MLD and OPF problems (#179)
  • Refactor to remove dcline variables and constraints (#179)
  • Refactor to genericize constraint_mc_power_balance (#179)
  • Fix bug in OpenDSS circuit initialization (vsource) (#178)
  • Make current rating (c_rating_a|b|c) be the default on branches (breaking)
  • Fix bug in transformer ref extension where all refs were not built for all nw in multinetworks (#171)
  • Fix bug in OpenDSS parser where properties were not applied in the order they were received (#170)
  • Rename "trans" in data and ref to transformer for component naming consistency (breaking) (#169)
  • Change internal variable and constraint functions to loop over phases internally (breaking) (#168)
  • Fix bug in OpenDSS parser on Lines where the connected phases are listed out of order (#167)
  • Add ability to "bank" single phase OpenDSS transformers into a single multiphase transformer (#166)
  • Add virtual line to sourcebus to model source impedance (#165)
  • Update to JuMP v0.20 / MOI v0.9 (#164)
  • Fix bug in OpenDSS parser on Lines / Linecodes related to basefreq (#163)
  • Fix bug in OpenDSS parser on Transformers (#162)
  • Fix bug in OpenDSS parser on Lines where switch=y property is used (#161)
  • Update Formulation types to follow PowerModels v0.13 conventions (breaking) (#160)

v0.5.2

  • Fix bug in OpenDSS parser on Capacitors (#158)
  • Add support for full matrix line shunts (#153)

v0.5.1

  • Add continuous load shedding problem (mld)

v0.5.0

  • Enforce function naming conventions (starts with _: internal function; ends with !: transforms data; correct_: corrects network data; check_: warnings about network data) (breaking)
  • Update for PowerModels.jl v0.12 (breaking)
  • Enforce constraint/variable naming conventions to include _tp (breaking)
  • Add automatic export of non-internal functions (all functions not prefixed with _)
  • Enforce function naming conventions (starts with _: internal function; ends with !: transforms data; correct_: corrects network data; check_: warnings about network data)

v0.4

  • First version of PowerModelsDistribution.jl

v0.3.2

  • Final version of ThreePhasePowerModels.jl before name change to PowerModelsDistribution.jl (adds depreciation warnings)

v0.3.1

  • Allow for arbitrarily named sourcebus
  • Add json parser
  • Add support for additional load models (constant power, constant impedance, constant current; delta or wye connected) (#127)
  • Fix bug in OpenDSS parse of Capacitors [zbase factor and wrong sign] (#138)
  • Add voltage balance constraints (#129)

v0.3.0

  • Update to JuMP v0.19/MathOptInterface

v0.2.1

  • Add transformer support to active power only models
  • Fix bug in source_ids of new components created for transformer support

v0.2.0

  • Add transformer to TPPM: wye and delta windings, vector group variations (indirectly) and variable taps per phase with bounds
  • Add ACPForm for transformers
  • Add transformer parsing to OpenDSS, including mapping of loss model
  • Add voltage base calculation, and corresponding change of base
  • Add AC rectangular formulation
  • Remove support for Julia versions < 1.0
  • Switch to using import instead of using internally

v0.1.5

  • Minor fix to OpenDSS line parsing (length units mismatch with linecode)

v0.1.4

  • Update to PowerModels v0.9

v0.1.3

  • Add opf with multi-phase storage model
  • Add support for parsing OpenDSS Storage objects
  • Minor fix to branch parsing in matlab format
  • Minor fix to OpenDSS parser (parsing ~ lines with preceeding whitespace)
  • Fixed parsing OpenDSS files containing redirect/compile/buscoords on case-sensitive filesystems
  • Add 'source_id' field to components parsed from OpenDSS, to help determine origin and active phases
  • Add conversion of OpenDSS PVSystem objects into generators, using KVA for generator limits
  • Add compatibility for Julia v0.7/v1.0

v0.1.2

  • Add support for network flow approximation formulation, NFAUPowerModel
  • Updates to problem specifications
  • Update tests for SCS v0.4
  • Minor improvements to OpenDSS parser

v0.1.1

  • Added a variety of matrix-based branch flow formulations
  • Updated LPLinUBFForm to more closely match published refrence model
  • Update MINLP solvers used in testing
  • Added basic docs setup
  • Minor improvements to OpenDSS parser #29, #59, #62, #63, #64, #65

v0.1.0

  • Initial release