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- W4376465669 abstract "In order to suppress the ultra-low frequency oscillation after asynchronous operation in Southwest Power Grid, the method of reducing the main control parameters of the governor is adopted. However, in this way, the response speed of the governor will be slow, and the response speed of the automatic generation control (AGC) at the unit side to the secondary frequency regulation demand of the power grid will also be slow. Therefore, the grid frequency cannot be restored to the rated state for a long time after the primary frequency modulation. Aiming at this problem, an optimization strategy for the secondary frequency regulation of the power grid with DC auxiliary participating in the AGC control at the unit side is proposed, A DC Secondary Frequency Control (DCSFC) is established. The DCSFC controller signal can realize the rapid rise and fall of the DC power through the response of the power electronic equipment in the DC system, and quickly adjust the system frequency to the rated value. In this paper, the proposed method is applied to reduce the influence of DC system participating in secondary frequency modulation on power transmission of DC system. The improved particle swarm optimization algorithm is adopted to optimize the parameters of the DCSFC controller. A simulation model is built in MATLAB/Simulink to verify the effectiveness of the proposed strategy." @default.
- W4376465669 created "2023-05-14" @default.
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- W4376465669 date "2022-01-01" @default.
- W4376465669 modified "2023-10-17" @default.
- W4376465669 title "Optimization strategy for secondary frequency regulation of DC transmission system auxiliary participation in asynchronous power grid" @default.
- W4376465669 doi "https://doi.org/10.1049/icp.2023.0184" @default.
- W4376465669 hasPublicationYear "2022" @default.
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