Evaluation of DC-link voltage ripple in five-phase PWM voltage source inverters

被引：5
|
作者：
Vujacic, M. [1 ]
Hammami, M. [1 ]
Dordevic, O. [2 ]
Grandi, G. [1 ]
机构：
[1] Alma Mater Studiorum Univ Bologna, Dept Elect Elect & Informat Engn, Bologna, Italy
[2] Liverpool John Moores Univ, Dept Elect & Elect Engn, Liverpool, Merseyside, England
来源：
JOURNAL OF ENGINEERING-JOE | 2019年 / 17期
关键词：
invertors; maximum power point trackers; power system control; PWM power convertors; battery storage plants; electric current control; capacitors; switching convertors; PWM invertors; DC-link voltage ripple; five-phase PWM voltage source inverters; DC-link capacitor; DC-link voltage switching ripple; peak-to-peak voltage ripple distribution; continuous symmetric centred PWM modulation;
D O I：
10.1049/joe.2018.8102
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents the analysis of the DC-link voltage switching ripple in five-phase PWM voltage source inverters with balanced load. The analysis is particularly important for the design and selection of a DC-link capacitor making it possible to meet desired electrical performance of the inverter system. Simple and practical equation for designing the DC-link capacitor is proposed relating the value of capacitance to the maximum value (peak-to-peak) of the DC-link voltage ripple. The amplitude of the DC-link voltage switching ripple is analytically derived as a function of modulation index, and the amplitude of the output current and phase angle. In order to show peak-to-peak voltage ripple distribution, different diagrams are introduced. Reference is made to continuous symmetric centred PWM modulation (i.e., space vector modulation SVM). In order to verify proposed developments, simulations have been carried out by Matlab/Simulink considering full range of modulation index and output phase angle.
引用
收藏
页码：3709 / 3714
页数：6
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