基于改进虚拟惯量法的双馈风机频率综合控制策略

doi:10.6040/j.issn.1672-3961.0.2021.474

摘要/Abstract

摘要： 针对双馈风机虚拟惯量控制的研究大多聚焦于转子转速恢复策略设计和控制参数优化,难以应对双馈风机出力骤降所带来的频率波动问题,本研究提出一种基于改进虚拟惯量法的频率综合控制策略,在双馈风机退出调频过程中,附加基于风机转速反馈的微分控制环节,降低转速恢复的速度,避免发生风机出力骤降,以抑制频率波动,同时综合超速控制,使双馈风机调频性能更优。在DIgSILENT/PowerFactory中搭建了仿真模型,对比验证了所提控制策略在不同场景下的有效性。算例结果表明,所提控制策略能够改进风机的惯量响应和一次调频特性,有效地避免频率快速变化。

关键词: 双馈风机, 虚拟惯量, 超速减载, 频率控制

中图分类号:

TM61

马欢,杨冬,高志民,曹永吉,秦昊,程定一,王亮,蒋哲. 基于改进虚拟惯量法的双馈风机频率综合控制策略[J]. 山东大学学报 (工学版), 2022, 52(5): 102-110.

MA Huan, YANG Dong, GAO Zhimin, CAO Yongji, QIN Hao, CHENG Dingyi, WANG Liang, JIANG Zhe. Integrated frequency control strategy of DFIGs based on improved virtual inertia method[J]. Journal of Shandong University(Engineering Science), 2022, 52(5): 102-110.

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