有源滤波器中输出滤波器的参数优化方法

电流滞环控制使逆变器的开关频率不固定,造成逆变器输出滤波器设计困难.在综合考虑输出滤波器的输出补偿谐波能力、滤除开关谐波能力和功耗等性能指标的基础上,提出一种输出滤波器参数优化方法,并建立参数优化数学模型.实验结果表明：该方法具有良好的滤波性能,能在开关谐波和功耗满足工业生产要求的前提下,有效地提高输出滤波器的输出能力,从而增强有源滤波器的补偿能力.

Parameter optimization of output filter for active power filters

Hysteresis current control method makes the switching frequency varying widely.So it was difficult to design the output filter of inverter.Considering the output ability of compensation harmonic,the eliminating ability of on-of harmonic and the power loss,a design method of output filter is presented in this paper,and the mathematic model of optimization is established.The proposed method validly promotes the output ability,therefore enhances the compensation ability of active power filter.Moreover,it can lower the power loss of output filters and meet the requirements of industrial application.Experimental results show that the proposed method is feasible.