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首页> 外文期刊>Renewable Power Generation, IET >Application of a synchronous generator with a boost converter in wind turbines: an experimental overview
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Application of a synchronous generator with a boost converter in wind turbines: an experimental overview

机译：具有升压转换器的同步发电机在风力涡轮机中的应用：实验概述

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摘要

An electrical structure of a variable-speed wind turbine based on an externally excited synchronous generator; a passive diode rectifier; and a boost converter is discussed in this study. The clear advantage of such a system is its lower-semi-conductor devices count. A brief theoretical explanation of such a system is included. A boost converter normally utilies an inductor (energy storage) to boost the voltage level from its input to a higher output value. This study analyses the possibility of using the generator inductance as a boost inductor. It is discussed and verified in the study that for the given switching frequency of the boost converter (fs = 1 kHz), the generator sub-transient inductance (not the synchronous inductance) appears as an equivalent inductance seen by the boost converter. The parasitic capacitors present in the generator terminals are often neglected from design issues. It is presented in the study that such capacitors can be a major issue when high-frequency switching is applied to the voltage at the generator terminals. Some major results from the experimental work are included. The experimental setup used in this work is a scaled down 7.5 kVA system.
机译：基于外部励磁同步发电机的变速风力发电机的电气结构；无源二极管整流器；本研究讨论了升压转换器。这种系统的明显优势是其较低的半导体器件数量。包括对这种系统的简要理论解释。升压转换器通常利用电感器（储能器）将电压电平从其输入升压至更高的输出值。本研究分析了将发电机电感用作升压电感的可能性。在研究中进行了讨论和验证，对于升压转换器的给定开关频率（f s = 1 kHz），发电机子瞬态电感（不是同步电感）表现为等效电感由升压转换器看到。发电机端子中存在的寄生电容器通常被设计问题所忽略。研究表明，当高频开关施加到发电机端子上的电压时，此类电容器可能成为主要问题。实验工作的一些主要结果也包括在内。在这项工作中使用的实验装置是缩小的7.5 kVA系统。

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