电力系统自动化2025，Vol.49Issue(22)：68-78,11.DOI:10.7500/AEPS20241106007
风电场静止同步调相机有功功率-频率支撑能力分析与优化
Analysis and Optimization of Active Power and Frequency Support Capability for Static Self-synchronous Compensator in Wind Farm
摘要
Abstract
Given the insufficient inertia and the lack of fast frequency support measures in wind power regional systems,it has become a new research focus to realize dual target support of active power-frequency and reactive power-voltage for wind farms by using the grid-forming transformation of self-provided high voltage direct-hanging grid-following static var generator in the wind farm.First,taking the static self-synchronous compensator with the supercapacitor as the research object,this paper analyzes the influence of key control and electrical parameter changes on the phase space variation process of the power angle of the static self-synchronous compensator.Then,the constraint relationship among equivalent inertia,supercapacitor capacitance and active power-frequency support capability is clarified.Moreover,by analyzing the essential reasons for the dual-objective control contradiction of the static self-synchronous compensator,a switching strategy for active power hysteresis control modes based on the state of charge of the supercapacitor is proposed,which improves the active power-frequency support capability for the static self-synchronous compensator on the premise of ensuring the reactive power compensation.Finally,simulation cases verify the correctness of the theoretical analysis and the effectiveness of the proposed strategy.关键词
风电场/构网型变流器/静止同步调相机/有功功率/频率支撑/相空间轨迹/滞环控制Key words
wind farm/grid-forming converter/static self-synchronous compensator/active power/frequency support/phase space trajectory/hysteresis control引用本文复制引用
陈继开,张嘉扬,李浩茹,初壮,张利伟,刘鸿鹏..风电场静止同步调相机有功功率-频率支撑能力分析与优化[J].电力系统自动化,2025,49(22):68-78,11.基金项目
国家自然科学基金资助项目(52077030). This work is supported by National Natural Science Foundation of China(No.52077030). （52077030）
