Modulation Technique for Modified Active Quasi-Z-Source Inverter with Common-Mode Voltage Reduction

Autor: Minh-Khai Nguyen, Youn-Ok Choi
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Electronics, Vol 10, Iss 2968, p 2968 (2021)
Electronics; Volume 10; Issue 23; Pages: 2968
ISSN: 2079-9292
Popis: In Z-source topologies, a high-amplitude common-mode voltage can occur when shoot-through states are inserted. In this study, a new space vector pulse-width modulation for an active quasi-Z-source topology is proposed to operate at a high modulation index and reduce the common-mode voltage to one-third of the DC-link voltage. Moreover, the quality of the output voltage is improved by operation with a high modulation index and decreasing the switching loss of the H-bridge switches. The detailed operating principles of the active quasi-Z-source topology using the proposed space vector modulation (SVM) method are presented. A simulation model was built, and an experimental prototype was verified to correct the theoretical analysis.
Databáze: OpenAIRE