摘要
独立小电网中电压波动比较剧烈,用于大电网系统的传统有源电力滤波器在独立小电网工况下不能很好地工作。针对这种情况,本文分析了电压波动对有源电力滤波器的影响,并提出了带电压前馈的有源电力滤波器控制策略,通过电压前馈环节的引入彻底地消除了电压波动对有源电力滤波器的影响。最后通过实验验证了带电压前馈的有源电力滤波器具有较好的静态补偿效果,且对电网电压波动不敏感,完全可以应用于电压波动比较剧烈的独立小电网系统。
As voltage fluctuating is serious in the independent small rating power system, the traditional active power filter (APF) which is used in the large rating power system no longer performs well. In this paper, the influence to APF caused by the voltage fluctuating is analyzed, and a voltage feed-forward control method of APF is proposed. As analyzed, it can effectively restrain the influence to APF caused by the voltage fluctuating. The experimental results also demonstrate the APF with a voltage feed-forward control has good steady-state performance, and is not sensitive to the voltage fluctuating.
出处
《电工电能新技术》
CSCD
北大核心
2005年第2期1-4,16,共5页
Advanced Technology of Electrical Engineering and Energy
基金
国家自然科学基金重点资助项目(59737140)
关键词
独立小电网
电压前馈
有源电力滤波器
independent small rating power system
voltage feed-forward control
active power filter
