基于3D-SVPWM的不平衡负载无功补偿控制技术研究

Unbalanced Load Reactive Compensation Control Technology Based on 3D-SVPWM

空间矢量脉宽调制(SVPWM)具有减少谐波、改善波形、提高电压利用率等优点,因此在无功补偿控制中得到了广泛应用。此处对三维(3D)SVPWM技术的实现进行了详细介绍,提出了利用Matlab Function函数模块构建无功补偿装置四桥臂脉冲的控制方法。通过对三相四线制无功补偿装置应用中的仿真分析和实验,验证了该方法的正确性和可行性。

Space vector pulse width modulation （SVPWM） has the advantages of less output harmonics,better waveforms and high DC voltage utilization ratio,so it has been widely used in the reactive compensation control.Based on the introduction of three-dimensional（3D） SVPWM technology,a novel control method of using Matlab Function module to control the four bridge arm pulse in the reactive compensation device is proposed.Simulation analyses and experiment of reactive compensation device in three-phase four-wire prove the right and feasibility of the method.