The wide use of different electronic devices and high-power impacting load in the power system produces heavy harmonics, which results in serious distortion of system voltage and current. The harmonic is also one of reasons for power system equipment overheat or failure. This problem can be well solved by installation of filters and SVC (static var compensator). Recently, with the application of AC/DC/AC adjustable speed drive system, more 35th and 37th-order harmonics were produced and affected normal operation of mill line seriously.The traditional filter design does not meet the requirements for harmonics suppression in this case. This paper presents an applicable filter design based on genetic algorithm. This new method not only absorbs high-order harmonics, but also compensates reactive power effectively.The manufacture time for the filters is shorter compare to the traditional design. This successful method has important technical and economic reference value to similar power quality control projects.%电力电子装置的广泛应用以及大功率非线性冲击负荷的不断增加,在电力系统中产生了大量的谐波,引起了电力系统电压和电流的波形严重畸变,导致电力没备过热或损坏.通过装设滤波器和SVC等装置能得到解决.最近随着交-直-交变频传动轧机的出现,产生的35次、37次等高次谐波,影响了轧机生产线的运行,常规的设计及治理方法已很难满足电力系统运行要求.给出一种基于遗传算法的滤波器参数优化没计方法,不但解决了高次谐波问题,而且对无功功率的补偿效果也很好,整个装置的生产时时间也比较短,成功的实践经验对于治理类似的工程问题也有较高的参考价值.
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