三相交错变换器PWM算法的选择

Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344) Pub Date : 2002-12-10 DOI:10.1109/IAS.2002.1043801

D. Neacşu, E. Wagner, B. Borowy

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引用次数: 15

摘要

大电流应用的一种解决方案是采用低功率的并联功率级。本文从产生的相电流谐波、直流环节电流谐波、中性点电压和变换器间循环电流等方面分析和论证了交错三相功率逆变器中PWM算法的选择。分析了在交错电力电子系统中使用的不同电流控制结构以及选择各种PWM算法的效果。最后，对不同实际方案的DSP实现进行了分析。

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Selection of the PWM algorithm for 3-phase interleaved converters

One solution for high current applications consists of paralleling power stages of lower power. This paper analyzes and justifies the selection of the PWM algorithm used within interleaved three-phase power inverters with respect to the resulting phase current harmonics, DC link current harmonics, neutral point voltage and inter-converter circulation currents. Analytical aspects of different current control structures used within interleaved power electronics systems and effects of selecting various PWM algorithms are revealed. Finally, analysis of the DSP implementation for different practical solutions is shown.

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Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344)

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