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Glossary en
EnerOS Bot edited this page Jul 5, 2026
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Maintained version: v0.51.2 ｜ Last updated: 2026-07-06
Quick reference for terms across three domains: power systems, Rust, and AgentOS. Wiki-unique content.
| Term | Abbreviation | Meaning |
|---|---|---|
| Bus | Bus | Grid node, voltage node |
| Branch | Branch | Transmission line / transformer branch |
| Topology | Topology | Grid graph structure |
| Power Flow | Power Flow | Bus voltage/angle + branch power |
| YBus | YBus Matrix | Nodal admittance matrix, core of powerflow |
| Slack bus | Slack | Swing bus, absorbs network losses |
| PQ bus | PQ | Load bus, known active/reactive power |
| PV bus | PV | Generator bus, known active power/voltage |
| per unit | pu | Normalized value |
| N-1 check | N-1 | Grid remains stable after any single failure |
| Thermal limit | Thermal Limit | Line current must not exceed thermal capacity |
| Voltage violation | Voltage Violation | Voltage deviates from nominal (typically ±5%) |
| CCT | Critical Clearing Time | Fault must be isolated within this time |
| AGC | Automatic Generation Control | Automatic generation control |
| OPF | Optimal Power Flow | Optimal power flow |
| EMS | Energy Management System | Energy management system |
| SCADA | Supervisory Control and Data Acquisition | Supervisory control and data acquisition |
| PMU | Phasor Measurement Unit | Synchrophasor measurement unit |
| PDC | Phasor Data Concentrator | Phasor data concentrator |
| GOOSE | Generic Object Oriented Substation Event | IEC 61850 L2 multicast message |
| SV | Sampled Values | IEC 61850 sampled values message |
| Fault isolation | Fault Isolation | Switching operations to isolate fault zone |
| Network reconfiguration | Network Reconfiguration | Topology reconfiguration to restore supply after fault |
| Protocol | Standard | Purpose |
|---|---|---|
| IEC 61850 | IEC 61850 | Substation automation (MMS/GOOSE/SV) |
| IEC 60870-5-104 | IEC 104 | Telecontrol (TCP/IP) |
| IEC 60870-5-103 | IEC 103 | Protection equipment communication |
| IEC 60870-6 | ICCP / TASE.2 | Inter-control-center data exchange |
| DL/T 698.45 | DL/T 698 | Chinese energy meter (object-oriented) |
| DL/T 645-2007 | DL/T 645 | Chinese multi-function energy meter |
| CDT | DL/T 634.5101 | Cyclic telecontrol protocol |
| Modbus | Modbus TCP/RTU | Industrial general |
| DNP3 | DNP3 | Distribution automation (North America) |
| OPC UA | OPC UA | Industrial unified architecture |
| MQTT | MQTT 5.0 | IoT messaging |
| CoAP | RFC 7252 | Constrained device REST |
| LwM2M | OMA LwM2M 1.1 | Device management |
| PMU/PDC | IEEE C37.118 | Synchrophasor |
| FT 1.2 | IEC 60870-5-101 | Serial asynchronous frame format |
| AF_PACKET | Linux | Raw socket (L2 direct capture) |
| Term | Meaning |
|---|---|
| crate | Rust compilation unit (similar to package) |
| workspace | Organization of multiple crates sharing a Cargo.toml |
| trait | Interface abstraction (similar to Java interface) |
| impl | Implement trait or method |
| enum | Algebraic data type, variants can carry data |
| newtype | Wrapper type, struct Foo(Bar)
|
pub(crate) |
Visible only within current crate |
| feature flag | Conditional compilation switch |
cfg_attr |
Conditional attribute |
#![deny(...)] |
Crate-level lint denial |
clippy |
Rust official linter |
unwrap() |
Unwrap Option/Result, panic on None/Err |
expect() |
Same as unwrap but with message |
| orphan rule |
impl Trait for Type requires one of them in current crate |
| trybuild | Compile-time error pattern testing |
| Term | Meaning |
|---|---|
| SafetyGateway | Safety gateway, type-level unbypassable |
Validated<Command> |
Validated command newtype |
NoAlloc |
RT domain heap-allocation-banned marker trait |
AllocTracker |
GlobalAlloc wrapper, detects heap allocation |
| WCET | Worst-Case Execution Time |
RtTask |
RT task, contains Validated<Command> + WcetBudget
|
AuditAction |
Audit action enum (includes WcetViolation / ConstraintViolation / CommandRejected) |
RepositoryAuditSink |
HMAC chain audit sink |
EventBus |
Event bus, publish/subscribe |
ConstrainedDecisionPipeline |
7-stage decision pipeline |
RealtimeExecutor |
RT domain executor |
TenantManager |
Multi-tenant manager |
RegionAwareRouter |
Region-aware router |
CrossRegionReplicator |
Cross-region WAL replicator |
DrOrchestrator |
DR orchestrator |
RollingUpgrader |
Rolling upgrader |
LlmClient |
LLM client trait |
LlmAgent<T> |
LLM Agent decorator |
RecordingLlmClient |
Recording LLM client (v0.50.2) |
LlmDecisionParser |
LLM decision parser (rejects EmergencyOverride) |
CollaborationCoordinator |
Multi-Agent collaboration coordinator |
PpoAgent |
PPO reinforcement learning Agent |
ShapExplainer |
TreeSHAP explainer |
GltfExporter |
glTF 2.0 exporter |
NlDataProvider |
NL query data provider trait |
Gbt14549Limits |
GB/T 14549 harmonic limits |
| Term | Meaning |
|---|---|
| mTLS | Mutual TLS authentication |
| CA | Certificate Authority |
| HMAC | Hash-based Message Authentication Code |
| WORM | Write Once Read Many |
| IEC 62443 | Industrial control system security standard |
| SL1/SL2 | Security Level 1/2 |
| NERC CIP | North American Electric Reliability Corporation Critical Infrastructure Protection |
| GDPR | EU General Data Protection Regulation |
| PIPL | China Personal Information Protection Law |
| CCPA | California Consumer Privacy Act |
| DSR | Data Subject Request |
| SAST | Static Application Security Testing |
| IOC | Indicator of Compromise |
| Ed25519 | Elliptic curve signature algorithm |
- Power System Primer — Power systems crash course
- AgentOS Primer — Agent/LLM crash course
- Crate Index — Full index of key types
- ADRs — 19 Architecture Decision Records
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