摘要
重复控制和谐振控制在并网电压源型逆变器中应用广泛,本文介绍了一种在APF中使用的新型重复控制策略,它的重复周期只有传统重复控制的一半,可以消除所有的奇次谐波。相比传统的重复控制,本文所提的控制策略具有更快的响应速度和更小的稳态误差;相比传统的谐振控制,它更容易由数字处理器实现。理论分析、仿真和实验结果都证明了这种快速重复控制的有效性和优越性。
The repetitive control and resonant control are widely used in grid-connected voltage-source converters recently,such as uninterruptible power supplies（UPS）,photovoltaic inverter（PV） and active power filter（APF）.This paper introduces a new repetitive control strategy in APF system,whose repetitive period is only one half of the traditional and could eliminate all odd harmonics as a bank of resonant controllers.Compared to traditional repetitive control,proposed control strategy has faster tracking speed and smaller steady-state error.Compared to traditional PR control,it could be simply implemented in digital processor.Theory analysis with simulations and experiments demonstrate the validity and superiority of proposed fast repetitive control strategy.
出处
《电工技术学报》
EI
CSCD
北大核心
2011年第10期110-117,共8页
Transactions of China Electrotechnical Society
关键词
重复控制
有源电力滤波器
快速重复控制
遗忘因子
Repetitive control
active power filter
fast repetitive controller
forgetting factor
