基于SVG的功率因数校正系统研究

摘要

为了减少感/容性负载与电网之间的无功交换,提高电网电能质量,提出和实现一种基于 SVG的功率因数校正系统。该系统使用 IGBT 全桥电路为主电路,采用 TMS320 F28335作为控制器,将解耦控制算法移植到DSP中,DSP产生PWM对 IGBT进行控制。实验结果表明,该系统能够快速地响应负载侧无功功率的变化,有效地对其进行补偿,减小负载和电网的无功交换。%A SVG-based power factor correction system is presented and designed to reduce reactive power exchange be-tween the grid and load.IGBT full bridge is employed as main circuit in the system,and TMS320F28335 is applied as the controller.A decoupling algorithm is applied to the DSP,thus,DSP generates the PWM to control IGBT.Experiment shows that the system can compensate the reactive power needed by load effectively and quickly,and reduce reactive power exchange between the grid and load,improve power quality of the grid.