Modeling for large-scale offshore wind farm using multi-thread parallel computing
•The integrated equivalent model for wind turbine based on matrix order reduction is proposed to improve simulation speed.•Interphase decoupled method of integrated equivalent model is proposed.•Modeling method of offshore wind farm considering electrical collection network is proposed.•Multi-thread...
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Veröffentlicht in: | International journal of electrical power & energy systems 2023-06, Vol.148, p.108928, Article 108928 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | •The integrated equivalent model for wind turbine based on matrix order reduction is proposed to improve simulation speed.•Interphase decoupled method of integrated equivalent model is proposed.•Modeling method of offshore wind farm considering electrical collection network is proposed.•Multi-thread parallel equivalent computing method is employed throughout the modeling procedure.•The simulation results show very high accuracy with large speedup factors.
Large-scale Offshore Wind Farms (OWFs) face difficulty when carrying out microsecond-level Electro-Magnetic Transient (EMT) simulations due to the large number of Wind Turbines (WTs) and electrical nodes. This paper provides an OWF modeling method considering the electrical collection network based on the integrated equivalent modeling method of single WT, which can eliminate the internal nodes and reduce the order of admittance matrix. Meanwhile, the multi-thread parallel computing is integrated into the whole solution procedure, which achieves further simulation speedup. Moreover, simulations are performed in PSCAD/EMTDC to compare the model accuracy and time efficiency of the proposed method with the detailed model. The simulation results show that the proposed method can accurately simulate the dynamic characteristics of large-scale OWFs with large speedup factors. |
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ISSN: | 0142-0615 1879-3517 |
DOI: | 10.1016/j.ijepes.2022.108928 |