CAJ | 학술논문

为了实现链式结构无功补偿器的性能,研究了使用于链式SVG的基频脉冲幅值调制(PAM),给出基频脉冲幅值调制的基本算法和理论分析.该方法通过脉冲循环进行直流侧电压平衡,利用多电平移相导通的思想求出SVG的初始角度.最后在Matlab/Simulink中建立链式SVG仿真模型,并在一台±10 kvar链式SVG实验样机上对控制策略进行了实验研究.实验结果表明系统的谐波含量达到并网要求.
위료실현련식결구무공보상기적성능,연구료사용우련식SVG적기빈맥충폭치조제(PAM),급출기빈맥충폭치조제적기본산법화이론분석.해방법통과맥충순배진행직류측전압평형,이용다전평이상도통적사상구출SVG적초시각도.최후재Matlab/Simulink중건립련식SVG방진모형,병재일태±10 kvar련식SVG실험양궤상대공제책략진행료실험연구.실험결과표명계통적해파함량체도병망요구.
@@@@To realize the performance of chain SVG, the fundamental frequency PAM control used in cascaded multilevel inverters is studied, and its basic algorithm and theoretical analysis are presented. Based on the thought of multi-level phase shift, it calculates the original angel of SVG. Then it describes the PAM strategy, its performance and the DC capacitors voltage balancing scheme of the pulse cycle transposition. The model of SVG with chain inverter is built in Matlab/Simulink. A scale model experiment using a SVG (±10 kVar) is used to study control strategy. The experiment results show that the harmonic content of the system can reach the needs of paralleling in the power grid.