ANALYSIS OF TRANSIENT SYNCHRONIIATION STABILITY OF POWER SYSTEM WITH GRID-FORMING/GRID-FOLLOWING NONSYNCHRONOUS-MACHINE SOURCES

Yang Yinguo; Lin Xu; Wu Guobing; Li Sixun; Xue Yicheng; Xu Zheng

doi:10.19912/j.0254-0096.tynxb.2023-0616

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (8) : 218-228. DOI: 10.19912/j.0254-0096.tynxb.2023-0616

ANALYSIS OF TRANSIENT SYNCHRONIIATION STABILITY OF POWER SYSTEM WITH GRID-FORMING/GRID-FOLLOWING NONSYNCHRONOUS-MACHINE SOURCES

Yang Yinguo¹, Lin Xu¹, Wu Guobing¹, Li Sixun², Xue Yicheng², Xu Zheng²

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Abstract

The transient synchronization stability mechanism of the grid-forming converter and the grid-following converter is studied, and the simulation verification is completed based on the actual power grid scenario. Firstly, according to the control strategy of the nonsynchronous-machine sources, the key factors influencing its transient synchronization stability are analyzed. Then, the time domain simulation model of 500 kV equivalent AC system of Zhejiang Jinhua is built in PSCAD/EMTDC. Based on this model, the transient instability characteristics after short-circuit faults of the actual power gird with nonsynchronous-machine sources are studied, and the key factors influencing the transient stability are verified by simulation.

Key words

modular multi-level converter / transient stability / voltage-source converter / electric power system

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Yang Yinguo, Lin Xu, Wu Guobing, Li Sixun, Xue Yicheng, Xu Zheng. ANALYSIS OF TRANSIENT SYNCHRONIIATION STABILITY OF POWER SYSTEM WITH GRID-FORMING/GRID-FOLLOWING NONSYNCHRONOUS-MACHINE SOURCES[J]. Acta Energiae Solaris Sinica. 2024, 45(8): 218-228 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0616

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