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t_opf_dc_ipopt.m
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t_opf_dc_ipopt.m
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function t_opf_dc_ipopt(quiet)
% t_opf_dc_ipopt - Tests for legacy DC optimal power flow using MIPS solver.
% MATPOWER
% Copyright (c) 2004-2024, Power Systems Engineering Research Center (PSERC)
% by Ray Zimmerman, PSERC Cornell
%
% This file is part of MATPOWER.
% Covered by the 3-clause BSD License (see LICENSE file for details).
% See https://matpower.org for more info.
if nargin < 1
quiet = 0;
end
num_tests = 43;
t_begin(num_tests, quiet);
[PQ, PV, REF, NONE, BUS_I, BUS_TYPE, PD, QD, GS, BS, BUS_AREA, VM, ...
VA, BASE_KV, ZONE, VMAX, VMIN, LAM_P, LAM_Q, MU_VMAX, MU_VMIN] = idx_bus;
[GEN_BUS, PG, QG, QMAX, QMIN, VG, MBASE, GEN_STATUS, PMAX, PMIN, ...
MU_PMAX, MU_PMIN, MU_QMAX, MU_QMIN, PC1, PC2, QC1MIN, QC1MAX, ...
QC2MIN, QC2MAX, RAMP_AGC, RAMP_10, RAMP_30, RAMP_Q, APF] = idx_gen;
[F_BUS, T_BUS, BR_R, BR_X, BR_B, RATE_A, RATE_B, RATE_C, ...
TAP, SHIFT, BR_STATUS, PF, QF, PT, QT, MU_SF, MU_ST, ...
ANGMIN, ANGMAX, MU_ANGMIN, MU_ANGMAX] = idx_brch;
casefile = 't_case9_opf';
if quiet
verbose = 0;
else
verbose = 0;
end
if have_feature('octave')
if have_feature('octave', 'vnum') >= 4
file_in_path_warn_id = 'Octave:data-file-in-path';
else
file_in_path_warn_id = 'Octave:load-file-in-path';
end
s1 = warning('query', file_in_path_warn_id);
warning('off', file_in_path_warn_id);
end
t0 = 'DC OPF (IPOPT): ';
mpopt = mpoption('out.all', 0, 'verbose', verbose);
mpopt = mpoption(mpopt, 'opf.dc.solver', 'IPOPT');
if have_feature('ipopt')
%% set up indices
ib_data = [1:BUS_AREA BASE_KV:VMIN];
ib_voltage = [VM VA];
ib_lam = [LAM_P LAM_Q];
ib_mu = [MU_VMAX MU_VMIN];
ig_data = [GEN_BUS QMAX QMIN MBASE:APF];
ig_disp = [PG QG VG];
ig_mu = (MU_PMAX:MU_QMIN);
ibr_data = (1:ANGMAX);
ibr_flow = (PF:QT);
ibr_mu = [MU_SF MU_ST];
ibr_angmu = [MU_ANGMIN MU_ANGMAX];
%% get solved DC power flow case from MAT-file
load soln9_dcopf; %% defines bus_soln, gen_soln, branch_soln, f_soln
%% run OPF
t = t0;
[baseMVA, bus, gen, gencost, branch, f, success, et] = rundcopf(casefile, mpopt);
t_ok(success, [t 'success']);
t_is(f, f_soln, 3, [t 'f']);
t_is( bus(:,ib_data ), bus_soln(:,ib_data ), 10, [t 'bus data']);
t_is( bus(:,ib_voltage), bus_soln(:,ib_voltage), 3, [t 'bus voltage']);
t_is( bus(:,ib_lam ), bus_soln(:,ib_lam ), 3, [t 'bus lambda']);
t_is( bus(:,ib_mu ), bus_soln(:,ib_mu ), 2, [t 'bus mu']);
t_is( gen(:,ig_data ), gen_soln(:,ig_data ), 10, [t 'gen data']);
t_is( gen(:,ig_disp ), gen_soln(:,ig_disp ), 3, [t 'gen dispatch']);
t_is( gen(:,ig_mu ), gen_soln(:,ig_mu ), 3, [t 'gen mu']);
t_is(branch(:,ibr_data ), branch_soln(:,ibr_data ), 10, [t 'branch data']);
t_is(branch(:,ibr_flow ), branch_soln(:,ibr_flow ), 3, [t 'branch flow']);
t_is(branch(:,ibr_mu ), branch_soln(:,ibr_mu ), 2, [t 'branch mu']);
%%----- test OPF with angle difference limits -----
t = [t0 'w/angle diff lims : '];
mpc = loadcase(casefile);
mpc.branch(4, ANGMAX) = 3;
mpc.branch(7, ANGMIN) = -4.5;
r = rundcopf(mpc, mpopt);
[bus, gen, branch, f, success] = deal(r.bus, r.gen, r.branch, r.f, r.success);
t_ok(success, [t 'success']);
t_is( f, 6456.7213, 3, [t 'f']);
t_is( bus(:,ib_data ), bus_soln(:,ib_data ), 10, [t 'bus data']);
t_is( gen(:,ig_data ), gen_soln(:,ig_data ), 10, [t 'gen data']);
t_is( gen(:,PG ), [99.98497;89.35133;125.66371], 4, [t 'gen dispatch']);
t_is(branch(:,ibr_data ), mpc.branch(:,ibr_data ), 10, [t 'branch data']);
e = zeros(size(branch, 1), 1);
e(4) = 297.83776;
e(7) = -26.94788;
t_is(branch(:,MU_ANGMAX )-branch(:,MU_ANGMIN ), e, 4, [t 'branch ang diff mu']);
t = [t0 'w/ignored angle diff lims : '];
mpopt1 = mpoption(mpopt, 'opf.ignore_angle_lim', 1);
r = rundcopf(mpc, mpopt1);
[bus, gen, branch, f, success] = deal(r.bus, r.gen, r.branch, r.f, r.success);
t_ok(success, [t 'success']);
t_is(f, f_soln, 3, [t 'f']);
t_is( bus(:,ib_data ), bus_soln(:,ib_data ), 10, [t 'bus data']);
t_is( bus(:,ib_voltage), bus_soln(:,ib_voltage), 3, [t 'bus voltage']);
t_is( bus(:,ib_lam ), bus_soln(:,ib_lam ), 3, [t 'bus lambda']);
t_is( bus(:,ib_mu ), bus_soln(:,ib_mu ), 2, [t 'bus mu']);
t_is( gen(:,ig_data ), gen_soln(:,ig_data ), 10, [t 'gen data']);
t_is( gen(:,ig_disp ), gen_soln(:,ig_disp ), 3, [t 'gen dispatch']);
t_is( gen(:,ig_mu ), gen_soln(:,ig_mu ), 3, [t 'gen mu']);
t_is(branch(:,ibr_data ), mpc.branch(:,ibr_data ), 10, [t 'branch data']);
t_is(branch(:,ibr_flow ), branch_soln(:,ibr_flow ), 3, [t 'branch flow']);
t_is(branch(:,ibr_mu ), branch_soln(:,ibr_mu ), 2, [t 'branch mu']);
%%----- run OPF with extra linear user constraints & costs -----
%% two new z variables
%% 0 <= z1, P3 - P1 <= z1
%% 0 <= z2, P3 - P2 <= z2
%% with A and N sized for DC opf
mpc = loadcase(casefile);
mpc.A = sparse([1;1;1;2;2;2],[10;12;13;12;11;14],[-1;1;-1;1;-1;-1],2,14);
mpc.u = [0; 0];
mpc.l = [-Inf; -Inf];
mpc.zl = [0; 0];
mpc.N = sparse([1;2], [13;14], [1;1], 2, 14); %% new z variables only
mpc.fparm = ones(2,1) * [1 0 0 1]; %% w = r = z
mpc.H = sparse(2,2); %% no quadratic term
mpc.Cw = [1000;1];
t = [t0 'w/extra constraints & costs 1 : '];
[r, success] = rundcopf(mpc, mpopt);
t_ok(success, [t 'success']);
t_is(r.gen(1, PG), 116.15974, 4, [t 'Pg1 = 116.15974']);
t_is(r.gen(3, PG), 116.15974, 4, [t 'Pg3 = 116.15974']);
t_is(r.var.val.z, [0; 0.3348], 4, [t 'user vars']);
t_is(r.cost.usr, 0.3348, 3, [t 'user costs']);
%% with A and N sized for AC opf
mpc = loadcase(casefile);
mpc.A = sparse([1;1;1;2;2;2],[19;21;25;21;20;26],[-1;1;-1;1;-1;-1],2,26);
mpc.u = [0; 0];
mpc.l = [-Inf; -Inf];
mpc.zl = [0; 0];
mpc.N = sparse([1;2], [25;26], [1;1], 2, 26); %% new z variables only
mpc.fparm = ones(2,1) * [1 0 0 1]; %% w = r = z
mpc.H = sparse(2,2); %% no quadratic term
mpc.Cw = [1000;1];
t = [t0 'w/extra constraints & costs 2 : '];
[r, success] = rundcopf(mpc, mpopt);
t_ok(success, [t 'success']);
t_is(r.gen(1, PG), 116.15974, 4, [t 'Pg1 = 116.15974']);
t_is(r.gen(3, PG), 116.15974, 4, [t 'Pg3 = 116.15974']);
t_is(r.var.val.z, [0; 0.3348], 4, [t 'user vars']);
t_is(r.cost.usr, 0.3348, 3, [t 'user costs']);
t = [t0 'infeasible : '];
%% with A and N sized for DC opf
mpc = loadcase(casefile);
mpc.A = sparse([1;1], [10;11], [1;1], 1, 14); %% Pg1 + Pg2
mpc.u = Inf;
mpc.l = 600;
[r, success] = rundcopf(mpc, mpopt);
t_ok(~success, [t 'no success']);
%% OPF with all buses isolated
t = [t0 'all buses isolated : '];
mpc = loadcase(casefile);
mpc.bus(:, BUS_TYPE) = NONE;
try
r = rundcopf(mpc, mpopt);
t_is(r.success, 0, 12, [t 'success = 0']);
catch
t_ok(0, [t 'unexpected fatal error']);
end
else
t_skip(num_tests, 'IPOPT not available');
end
if have_feature('octave')
warning(s1.state, file_in_path_warn_id);
end
t_end;