Dead-Time Effect Compensation Based on Additional Phase Current Measurements

被引：56
|
作者：
Lewicki, Arkadiusz [1 ]
机构：
[1] Gdansk Univ Technol, Dept Elect & Control Engn, PL-80233 Gdansk, Poland
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2015年 / 62卷 / 07期
关键词：
Dead-time effect; digital control of voltage-source inverter (VSI); multilevel inverters; pulsewidth modulation (PWM); SCHEME;
D O I：
10.1109/TIE.2015.2389756
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper proposes a new method of dead-time effect compensation. The proposed solution is based on additional phase current measurements realized by analog-to-digital converters. These measurements are carried out at the time instants specified by a pulsewidth-modulation (PWM) strategy. This makes it possible to estimate inverter currents at the commutation instants and, finally, to estimate the voltage error caused by dead time. This voltage error is compensated during the next switching period by modification of a reference voltage. The proposed solution can be used to compensate the voltage error in multilevel multiphase voltage source inverters. The experimental research studies were carried out on three-phase two-level and three-level neutral-point-clamped inverters supplying 55- and 160-kW motors, respectively. The results of the experimental investigations are presented in this paper.
引用
收藏
页码：4078 / 4085
页数：8
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