有源电力滤波器的研究
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摘要
采用有源滤波器就地吸收谐波源所产生的谐波电流,是消除或限制电力系统谐波污染的一种有效的措施。本文从抑制谐波常用的几种方法出发,着重有源滤波器的相关知识及其仿真设计方法的介绍。本文设计的有源滤波器是利用瞬时无功功率理论计算谐波电流,由此产生有源电力滤波器的补偿信号。该方法可以实现快速的检测出谐波分量,并补偿无功功率。本设计用先进的仿真软件工具MATLAB中的电力系统仿真工具箱对基于这种方法的有源滤波器进行仿真,仿真结果表明基于瞬时无功功率理论设计的有源滤波器装置能够有效检测出谐波分量,并可以抑制谐波分量和进行无功补偿。
The Active Power Filter, which can compensate simultaneously the harmonics and reactive power of non-linear loads, is good method to eliminate the harmonic pollution in power system. This paper discussed several methods for limiting the harmonics, and mainly introduced the basic knowledge of the active power filter. A method of inspecting the harmonics based on instantaneous reactive power is presented. This method can inspect the harmonic component and reactive power immediately. Based on this prototype, MATLAB, which is a simulated tool for power system, is used to prove it. Experimental results are presented to conform the effectiveness of the APR
引文
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