Resolution-level controlled wind energy conversion system for PM generators

S. Saleh, R. Ahshan
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引用次数: 1

Abstract

This paper presents the development, implementation and performance testing of a new permanent magnet generator-based wind energy conversion system for grid-connected applications. The grid-connected operation is constructed using the new three phase resolution-level controlled wavelet modulated inverter. The output of the wind generator is fed to a switch-mode converter, where the dc voltage is controlled to ensure extracting the maximum power at each wind speed. The resolution-level control of the grid-side inverter is designed as a current controller for adjusting active and reactive powers delivered to the grid. The proposed wind energy conversion system is implemented both in software and hardware performance testing on a direct-drive 6 kW laboratory permanent magnet generator operated with variable speed. Test results demonstrate that an accurate control of the dc voltage on the generator side ensures adjusting the generator speed to extract the maximum power from the wind at each wind speed. Also, test results show significant abilities of the resolution-level controller to initiate fast and accurate adjustments in the output active and reactive powers to meet the demand values under variable wind speed.
永磁发电机的分辨率级控制风能转换系统
本文介绍了一种新型的基于永磁发电机的并网风能转换系统的开发、实现和性能测试。并网运行采用新型三相分辨率级可控小波调制逆变器。风力发电机的输出被馈送到一个开关模式转换器,在那里直流电压被控制,以确保在每个风速下提取最大功率。并网侧逆变器的分辨率级控制被设计为电流控制器,用于调节输送到电网的有功和无功功率。所提出的风能转换系统在一台6kw实验室永磁直驱变频发电机上进行了软硬件性能测试。试验结果表明,对发电机侧直流电压的精确控制,可以保证在每一风速下调节发电机转速,使其从风中获得最大的功率。此外,测试结果表明,在变风速下,分辨率级控制器能够快速准确地调整输出有功功率和无功功率,以满足需求值。
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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