低互感高品质因素无源滤波器的优化设计分析

为降低无源滤波器中三相电抗器互感对单调谐滤波器滤波效果的影响,通过理论分析表明,将其严格按照水平三角方式排列摆放,可有效抑制相间电抗器互感;采用考虑无源滤波器性能和系统总成本的多目标模糊优化方法设计无源滤波器参数,能将多个优化目标转换为单目标的优化求解问题,设计出具有低互感高品质因素的无源滤波器,混合型滤波器系统。新方案投入运行后,取得了较好的现场效果。

Optimization Design of Low Inductance and High Quality Factor Passive Filter

Many hybrid active power filters proposed in the literature combine passive power filter and active power filter in series and parallel.In these systems,the passive power filter can suppress some special order harmonic,such as fifth and seventh order harmonics,also it can compensate reactive power and active power filter can improve the characteristic of suppressing harmonic current and degrade resonance of passive active filters,the power capacity of a power converter in hybrid active power filter is about one-tenth of nonlinear loads.Considering that three-phase reactor mutual inductance of passive filter may affect the filtering effect in single tune filter,this article adopted the strict horizontal triangle arrangement which may effectively suppress mutual inductance of the inter-phase reactor.Meanwhile,the passive filter performance and the multi-objective fuzzy optimization of system total cost are considered in the passive filter parameter design,which can transform many optimized goals into the simple target optimization,and it can design passive filter with low mutual inductance and high quality factor.