There is a great market demand to utilize the Active Power Filter (APF) to reduce the harmonics of the power system and improve the power quality in China.

• 伴随着我国电能质量问题研究工作的深入开展，利用电力有源滤波器(Active Power Filter，缩写为APF)进行谐波和无功治理将会具有巨大的市场应用潜力。