A Comparison between Quasi-Z-Source Inverter and Active Quasi-Z-Source Inverter

被引：0
|
作者：
Truong-Duy Duong [1 ]
Minh-Khai Nguyen [2 ]
Lim, Young-Cheol [1 ]
Choi, Joon-Ho [1 ]
Vilathgamuwa, D. Mahinda [2 ]
机构：
[1] Chonnam Natl Univ, Dept Elect Engn, Gwangju 500757, South Korea
[2] Queensland Univ Technol, Sch Elect Engn & Comp Sci, Brisbane, Qld 4001, Australia
来源：
2019 10TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND ECCE ASIA (ICPE 2019 - ECCE ASIA) | 2019年
关键词：
Boost conversion ability; quasi-Z-source inverter (qZSI); quasi-switched boost inverter (qSBI); three-phase inverter;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents some comparative results between the three-phase quasi-Z source inverter (qZSI) and active quasi-Z source inverter (AqZSI). An improved PWM method is proposed for AqZSI. The voltage gain can be increased by using the shoot-through duty cycle and the switching ratio of the additional switch. Compared to qZSI, AqZSI with improved PWM strategy has a higher efficiency at the boost mode. Furthermore, AqZSI can be operated up to a higher modulation index and it boasts a lower inductor current ripple and reduced shoot-through current. The analysis of inverter and the improved PWM strategy are discussed. An experimental prototype with output power of 600 W is built to show the agreement of theory and measurement.
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页数：6
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