Application and losses analysis of ANPC converters in doubly-fed induction generator wind energy conversion system

Xin Jing, Jiangbiao He, N. Demerdash
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引用次数: 18

Abstract

This paper presents the application and losses analysis of three-level active neutral-point-clamped (ANPC) back-to-back converters in a doubly-fed induction generator (DFIG) wind energy conversion system (WECS). A phase-shifted sinusoidal PWM strategy with the advantages of doubling the apparent switching frequency and better balancing loss distribution among switches is employed for the ANPC back-to-back converters. Comparative losses analysis between three-level ANPC and traditional NPC converters is conducted based on the applications in a 1.5 MW DFIG WECS. Moreover, dynamic modeling and control strategies for the DFIG WECS are introduced. Finally, simulation analysis of the three-level ANPC converters excited 1.5 MW DFIG WECS is carried out. The simulation results verified the advantages of ANPC converters and the corresponding modulation strategy on improving loss distribution and doubling apparent switching frequency in this WECS application.
ANPC变流器在双馈感应发电机风能转换系统中的应用及损耗分析
介绍了三电平有源中性点箝位(ANPC)背对背变流器在双馈感应发电机(DFIG)风能转换系统(WECS)中的应用及损耗分析。在ANPC背对背变换器中,采用了一种移相正弦PWM策略,该策略具有开关表观频率翻倍和开关间损耗平衡较好的优点。通过在1.5 MW DFIG wcs中的应用,对三电平ANPC和传统NPC变换器的损耗进行了比较分析。此外,还介绍了DFIG wcs的动态建模和控制策略。最后,对三电平ANPC变换器的1.5 MW DFIG wcs励磁进行了仿真分析。仿真结果验证了ANPC变换器和相应的调制策略在改善损耗分布和提高视在开关频率方面的优势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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