A Co-Simulation Framework for Power System Analysis
Abstract
:1. Introduction
2. EMT Co-Simulation Framework
2.1. Network Partitioning
2.2. Interfacing
2.3. Time-Step Delay Error
2.4. Data Prediction by Extrapolation
2.5. Discontinuity Detection
3. Case Study
3.1. AC/DC Power System
3.2. AC Distribution System
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
Abbreviations
CPU | Central processing unit |
DD | Discontinuity detection |
EMT | Electromagnetic transient |
FDNE | Frequency dependent network equivalent |
GUI | Graphical user interface |
HVDC | High voltage direct current transmission |
IPC | Interprocess communication |
R-L-C | Resistor, Inductor and Capacitor |
SSE | Sum squared error |
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Specifications | HVDC System | AC System |
---|---|---|
Type | Line commutated converter | |
Rate Voltage | DC ±180 kV | 154 kV |
Rate Current | 849 A | - |
Rating | 300 MW | 75 MVA synchronous generator |
Number of circuits | 2 | - |
Converter Transformer | 3phase 3winding (YDY) | - |
Reactive power compensation | 70 MVA synchronous condensers | - |
Harmonic Filter | DTF 27.5 MVA X 2 for 11, 13th harmonics HPF 27.5 MVA X 2 for 23, 25th harmonics | - |
Type | Radial |
---|---|
Total Number of Bus | 34 |
Frequency | 60 Hz |
Voltage | 24.9 kV |
Number of Loads | Spot: 6, Distributed: 19 |
Total Load | Active: 1769 kW, Reactive: 1044 kW |
Transformer | 24.9 kV/4.16 kV, D-Y, 500 kVA |
Voltage Regulator | Y-Y with OLTC |
Shunt Capacitor | 750 kVA |
Type | Conventional | Co-simulation | ||
---|---|---|---|---|
Case | Reference | Common time-step | ||
CPU | Single core (3.2 GHz) | Multi core (2.66 GHz) | Single core (3.2 GHz) | Multi core (2.66 GHz) |
Time-step | 10 μs | 10 μs | 10 μs | 10 μs |
Computation time * | 1 | 1.12 | 6.72 | 0.51 |
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Oh, S.; Chae, S. A Co-Simulation Framework for Power System Analysis. Energies 2016, 9, 131. https://doi.org/10.3390/en9030131
Oh S, Chae S. A Co-Simulation Framework for Power System Analysis. Energies. 2016; 9(3):131. https://doi.org/10.3390/en9030131
Chicago/Turabian StyleOh, Seaseung, and Suyong Chae. 2016. "A Co-Simulation Framework for Power System Analysis" Energies 9, no. 3: 131. https://doi.org/10.3390/en9030131