Simulation Initialization Method for AC/DC Hybrid Power Grid

doi:10.11930/j.issn.1004-9649.202110006

Abstract

Abstract: In order to improve the initialization stability and convergence speed of large-scale AC / DC hybrid power grid, the artificial neural network is used to fit its complex impedance, harmonic, and control characteristics, and then nested into the three-phase fundamental power flow calculation framework based on the improved node method for iterative correction. At the same time, in order to improve the initialization efficiency of large-scale AC / DC hybrid power grid, a parallel initialization calculation method based on multi-port equivalence is proposed. The simulation results of IEEE33 bus and 330 bus AC / DC hybrid power grid with photovoltaic power stations are used to verify the effectiveness of the proposed method.

Key words: electromagnetic transient simulation, initialization, AC/DC hybrid power grid, photovoltaic power station

E Zhijun, LI Zhenbin, YANG Bangyu, LIU Wei, YAO Weiping. Simulation Initialization Method for AC/DC Hybrid Power Grid[J]. Electric Power, 2022, 55(8): 178-183.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202110006

https://www.electricpower.com.cn/EN/Y2022/V55/I8/178

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