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电网技术  2015 

基于多馈入功率恢复因子的南方电网多回直流分层协调控制策略

DOI: 10.13335/j.1000-3673.pst.2015.10.021, PP. 2822-2829

Keywords: 高压直流输电,多馈入直流系统,低压限流单元,协调控制,电压稳定

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Abstract:

为提升多馈入直流输电系统的暂态稳定性,设计了针对多回直流的分层协调控制策略。首先,分析了直流低压限流单元控制对系统恢复特性的影响,提出了相应的优化措施;然后,分析了影响多回直流协调恢复性能的因素,并在此基础上提出了以多馈入功率恢复因子为评价指标的多回直流协调恢复措施;最后,在南方电网的仿真模型中验证了所提出的分层协调控制策略的有效性。研究结果表明所提控制策略能够有效提升多馈入直流输电系统的暂态稳定性。

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