Current-Ripple Prediction for Three-Phase PWM Converters

被引：85
作者：
Jiang, Dong [1 ]
Wang, Fei [2 ,3 ]
机构：
[1] United Technol Res Ctr, E Hartford, CT 06118 USA
[2] Univ Tennessee, Ctr Ultrawide Area Resilient Elect Energy Transmi, Knoxville, TN 37996 USA
[3] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2014年 / 50卷 / 01期
基金：
美国国家科学基金会;
关键词：
Current ripple; prediction; pulsewidth modulation (PWM); three-phase converter; CARRIER-BASED-PWM; VOLTAGE-SOURCE INVERTERS; SPACE-VECTOR-MODULATION; OPTIMAL PULSEWIDTH MODULATION; DISTORTION DETERMINING FACTOR; SWITCHING FREQUENCY PWM; HARMONIC DISTORTION; DRIVES; PERFORMANCE; STRATEGIES;
D O I：
10.1109/TIA.2013.2270224
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The three-phase pulsewidth-modulation (PWM) converter is one of the most widely used topologies for power conversion. In order to design PWM methods, the influence of PWM methods on the current ripple is needed. This paper studies the current ripple of a three-phase PWM converter with general PWM methods for the design and control of this kind of converter. The current ripple is analyzed with eight different Thevenin equivalent circuits for the eight different voltage vectors. Then, the current-ripple slope and effective time could be achieved for every period. The current ripple could be predicted with both peak and rms values. Analytical predicted results show that discontinuous PWM could generate obviously bigger current ripples than space vector PMW for both peak and rms values with the same conditions. Simulation and experiments are built to verify the analytical results, proving that the theoretical prediction is valid. This analysis provides the basis for the design and control of the PWM method for converters.
引用
收藏
页码：531 / 538
页数：8
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