﻿ 电容钳位型单相不对称三电平逆变器及其空间矢量脉宽调制方法

# 电容钳位型单相不对称三电平逆变器及其空间矢量脉宽调制方法Study of SVPWM Method for Single-Phase Asymmetric Three-Level Capacitance- Clamped Inverter

Abstract: In this paper, the space vector pulse width modulation (SVPWM) method was proposed for the topology of single-phase asymmetric three-level inverter. Based on the proposed method, the sin-gle-phase space vector diagram is divided into four regions, and the output reference voltage vector is synthesized by the two voltage vectors of the region according to the volt-second balance principle. In order to filter harmonic which is contained in the output voltage and create better sine wave, LC filter is widely used in the design to filter harmonic of the output voltage, and a parameter design method is developed for the inductor and capacitor designs. The good performance of the proposed inverter and SVPWM control method is demonstrated by the simulation results.

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