基于NPP结构的三电平逆变器SVPWM算法实现

The SVPWM algorithm of three-level inverter based on NPP structure

调制策略是电力电子变换器的重要技术之一。空间矢量脉冲调制(Space Vector Pulse Width Modulation,SVPWM)在中低压电机调速领域得到广泛应用,特别是以NPC和NPP拓扑结构为主的三电平变换器。该算法通过简单的线性计算就可以得到三相调制波并且完成占空比的计算,通过MATLAB/Simulink仿真分析,该SVPWM算法的有效性和正确性得到充分验证。

Modulation strategy is one of the important technologies of power electronic converter. Space vector pulse width modulation (SVPWM) has been widely used in the field of medium and low voltage motor speed regulation, especially the three-level converter based on NPC and NPP topology. The algorithm can obtain three-phase modulation wave through simple linear calculation and complete the calculation of duty cycle. The simulation results show that the algorithm is valid and correct by MATLAB / Simulink.