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Research on Parallel Operation of Active Power Filters Applied to High-Voltage High-Power System
Author(s): 
Pages: 94-100
Year: Issue:  6
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  有源滤波器二极管钳位型多电平变换器容量限制闭环控制策略;
Abstract: 由于功率器件耐压水平和载流能力的限制,传统有源滤波器难以实现对高压大容量非线性负载的谐波补偿.本文提出一种有源电力滤波器,它由几个采用二极管钳位型多电平拓扑结构的滤波器模块组成.该滤波器模块采用多电平拓扑结构,很适合于匹配高电压等级,而且当补偿量超出实际输出容量时,能根据自身容量对电网谐波进行抑制.这种有源滤波器通过并联几个滤波器模块充分抑制电网谐波,使得每个滤波器模块不需要很大容量,运行独立灵活,解决了容量灵活扩充的问题.除了对该有源滤波器进行理论分析,本文还对其闭环控制策略进行研究.理论分析和仿真结果表明,所提方案很适合应用于高电压、大容量谐波补偿.
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