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介绍了电力系统的谐波问题,阐述了有源电力滤波器(APF)的基本工作原理和瞬时无功功率理论,在此基础上,建立了三电平APF的数学模型,并且结合三电平SVPWM简化算法完成了APF系统实验研究,解决了APF在煤矿高电压大功率场合下的应用问题,实验结果证明了该方案具有良好的谐波补偿效果。
The harmonic problem of power system is introduced, and the basic working principle and instantaneous reactive power theory of active power filter (APF) are expounded. Based on this, the mathematical model of three-level APF is established. Combined with three-level The SVPWM simplified algorithm completes the APF system experimental research and solves the application problem of APF in high voltage and high power coal mine. The experimental results show that this scheme has a good harmonic compensation effect.