基于数字信号处理的谐波和无功电流的检测
Proceedings of the Chinese Society of Universities for Electric Power System and Automation(2007)
Abstract
针对谐波和无功电流检测中存在的问题,提出了一种离散检测方法。通过构造同步基准正余弦信号,获得了电压、电流的基波正序分量,消除了三相电压不对称与同步信号发生电路对检测结果的影响。并在此基础上扩展研究了检测任意次谐波正序、负序和零序分量的情况。仿真测试结果证明了该方法的有效性。
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Key words
current detection,instantaneous reactive power,active power filter,unsymmetrical voltage,digital signal processing
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