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近海风电场并网用多端口VSC-HVDC系统的无差拍协同控制策略

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Keywords: 多端口,电压源换流器高压直流输电,近海风电场,无差拍控制,并网

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Abstract:

探讨了近海风电场用基于电压源换流器的高压直流输电系统(VSC-HVDC)的几种并网拓扑,针对多端口VSC-HVDC系统提出了基于无差拍控制方法的协同控制策略,该控制策略具有原理简明、算法简单、参数定义明确、跟踪精度高及动态响应速度快等优点。为了验证本文所提出方案的可行性,利用Matlab/Simulink构建了一个近海风电场的四端口VSC-HVDC并网传输系统,并进行了系列仿真研究。仿真结果表明,本文所提出的多端口VSC-HVDC并网传输协同控制方案可为近海大规模风电场的并网传输提供优化灵活的解决方案。

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