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新型分散式电能质量调节器运行研究

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Keywords: 分散式电能质量调节器,无运行控制策略,运行模式,功率流分析,串并联联合运行

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Abstract:

为改善多DFACTS装置联合运行时,出现的成本上升、效率降低和负交互影响等问题,本文提出一种“先并后串”、“主并支串”新型分散式电能质量调节器及其无线控制运行策略,分析了其运行原理及分散式电能质量调节器与系统端、负荷端的功率流动关系。该种分散式电能质量调节器主要有两种运行模式在PCC母线端电压处于正常范围内时,并联补偿单元负责补偿负载端所需无功,提高该馈线电网侧的功率因数;而当公共连接母线电压发生跌落时,该馈线负载侧各支路串联补偿单元开始投入运行,补偿其所在支路敏感负荷端电压。仿真结果表明,本文提出的分散式电能质量调节器具有良好的有效性和可行性。

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