集中设置滤波器解决谐波倒灌的方案论证

Solution demonstration of preventing harmonics back pour by central installing filters

针对谐波源相对集中时就地安装滤波器容易出现谐波倒灌的问题,提出了一种集中设置滤波器解决谐波倒灌的方案。结合特征值灵敏度和灰色关联分析法,解决了多支路滤波器组集中安装的问题,并用遗传算法优化滤波器的参数。在集中设置滤波器的安全校验条件中,采用求和指数确定节点谐波电压,并通过一15节点系统的实例分析,证实了采用该方法的有效性。

Since that in stalling filter locally leads to harmonic back pour when the harmonic sources concentrate, one program preventing harmonic back pour by installing filters intensively was proposed in this paper. According to the eigenvalue sensitivity and grey relative analysis method, the installation of multiple-branch filter group is realized, the filter parameters were optimized through genetic algorithm, and the summation index was applied for determining nodes harmonic voltage. In addition, the validity of this plan was verified, through analyzing an fifteen-nodes system.