电源学报2025，Vol.23Issue(2)：57-66,10.DOI:10.13234/j.issn.2095-2805.2025.2.57
一种基于虚拟矢量PWM的准Z源三电平逆变器新型控制算法实现
Implementation of Novel Control Algorithm for Quasi-Z-source Three-level Inverter Based on Virtual Space-vector PWM
摘要
Abstract
The coupling between the boost control and neutral-point voltage balance control of a quasi-Z-source three-level inverter seriously limits its control performance.To solve this problem,a neutral-point voltage balance control strategy based on a virtual space-vector pulse width modulation method is proposed.The neutral-point voltage balance control is realized through a closed-loop control of the DC-bus capacitor voltage,and the low-frequency fluctuations in the neutral-point voltage are eliminated.Meanwhile,a constant shoot-through boost modulation strategy is employed,which avoids the adverse impact on the neutral-point voltage and guarantees an ample boosting capacity of the quasi-Z-source network.Finally,simulation and experimental results verified the validity of the proposed control strategy.关键词
准Z源三电平逆变器/中点电位平衡/虚拟矢量脉宽调制Key words
Quasi-Z-source three-level inverter/neutral-point voltage balance/virtual space-vector pulse width modulation分类
信息技术与安全科学引用本文复制引用
柴锦,刘通,王伟胜,陈阿莲..一种基于虚拟矢量PWM的准Z源三电平逆变器新型控制算法实现[J].电源学报,2025,23(2):57-66,10.基金项目
国家自然科学基金资助项目(U2006222) （U2006222）
国家重点研发计划资助项目(2022YFB2402903)This work is supported by National Natural Science Foundation of China under the grant U2006222 （2022YFB2402903）
the National Key Research and Development Program of China under the grant 2022YFB 2402903 （）
