Common Mode Voltage Elimination for Quasi-Switch Boost T-Type Inverter Based on SVM Technique

Electronics

Thanh-Hai Quach¹  Vinh-Thanh Tran¹  Van-Thuyen Ngo¹  Duc-Tri Do¹  Minh-Khai Nguyen¹ 

[1] Faculty of Electrical and Electronics Engineering, Ho Chi Minh City University of Technology and Education, 1 Vo Van Ngan Street, Thu Duc district, Ho Chi Minh City 700000, Vietnam;

关键词: space-vector pulse-width modulation;    common-mode voltage elimination;    quasi-switched boost;    three-level t-type inverter;    impedance network;   

DOI  :  10.3390/electronics9010076

来源: DOAJ

【 摘 要 】

In this paper, the effect of common-mode voltage generated in the three-level quasi-switched boost T-type inverter is minimized by applying the proposed space-vector modulation technique, which uses only medium vectors and zero vector to synthesize the reference vector. The switching sequence is selected smoothly for inserting the shoot-through state for the inverter branch. The shoot-through vector is added within the zero vector in order to not affect the active vectors as well as the output voltage. In addition, the shoot-through control signal of active switches of the impedance network is generated to ensure that its phase is shifted 90 degrees compared to shoot through the signal of the inverter leg, which provides an improvement in reducing the inductor current ripple and enhancing the voltage gain. The effectiveness of the proposed method is verified through simulation and experimental results. In addition, the superiority of the proposed scheme is demonstrated by comparing it to the conventional pulse-width modulation technique.

【 授权许可】

Unknown