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Control strategy of distribution STATCOM under unbalanced condition
Author(s): WANG Shaojie, LUO An
Pages: 13-
17
Year: 2009
Issue:
8
Journal: Electric Power Automation Equipment
Abstract: 针对系统电压不平衡对静止同步无功补偿器(STATCOM)运行的影响:直流侧电容会产生2倍频的电压波动;交流侧输出3次谐波电压和电流.影响STATCOM的输出性能及安全运行的问题.提出了解决方法和策略.STATCOM主要由直流侧电容、二电平逆变器和连接电抗器等组成.为改善STATCOM的运行特性.采取增大STATCOM直流侧电容容量的方法来抑制3次谐波电流:认为抑制3次谐波唯一的途径在于改进开关函数...
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