Simplified circuit and modulation scheme for five-phase three-level voltage source inverter

被引：4
|
作者：
Liu, Hongchen [1 ]
Wang, Guoli [1 ]
Yu, Hailong [1 ]
机构：
[1] Harbin Inst Technol, Sch Elect Engn & Automat, Harbin 150001, Peoples R China
来源：
ELECTRONICS LETTERS | 2013年 / 49卷 / 22期
基金：
中国国家自然科学基金;
关键词：
induction motor drives; PWM invertors; PWM power convertors; simplified circuit scheme; simplified modulation scheme; five-phase three-level voltage source inverter; FPTL-VSI; dual-buck stage; two-level VSI; space vector pulse width modulation; SVPWM scheme; controllable switching devices; three-level voltage waveform; hardware cost reduction; output voltage waveform quality improvement; multiphase motor drives;
D O I：
10.1049/el.2013.1537
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：
The simplified circuit and modulation scheme is presented for a five-phase three-level voltage source inverter (FPTL-VSI). The simplified FPTL-VSI is a concatenation of a dual-buck stage and a two-level VSI (TL-VSI), and the space vector pulse width modulation (SVPWM) is used as the modulation scheme. Owing to the merit of the dual-buck stage which uses only four controllable switching devices, the TL-VSI can produce a three-level voltage waveform. By simplification of the space voltage vectors, a simplified SVPWM scheme can be obtained. Thus, the simplified FPTL-VSI reduces the hardware costs and improves the quality of the output voltage waveforms. Furthermore, the hardware implementation of the simplified SVPWM scheme can be easily realised. The experimental results prove the feasibility and validity of the proposed inverter and the modulation scheme.
引用
收藏
页码：1404 / 1405
页数：2
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