| 引用本文: | 胡书举,李建林,梁亮,许洪华.风力发电用电压跌落发生器研究综述[J].电力自动化设备,2008,(2):101-103,112 |
| .Review of voltage sag generator for wind power[J].Electric Power Automation Equipment,2008,(2):101-103,112 |
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| 摘要: |
| 为测试风力发电系统的低电压穿越能力,需要专门的电压跌落模拟装置。鉴于此,对国内外现有风力发电用电压跌落发生器(VSG)的研究进行了详细的总结,论述了3种形式的VSG实现方法,阻抗形式VSG通过在主电路中并联或串联阻抗模拟电压跌落,变压器形式VSG以变压器组合或中心抽头变压器切换方式模拟电压跌落,电力电子变换形式VSG使用半导体功率器件模拟各种电压跌落类型,功能强大;并对各种方法的工作原理和实现方法进行了分析,对各自的优缺点进行了对比。变压器形式VSG具有结构简单、可靠性高和成本较低的优势,目前使用较多,电力电子变换形式的VSG因其体积小、便于携带和强大的功能,将会得到越来越多的应用。 |
| 关键词: 风电系统测试,低电压穿越,电压跌落发生器 |
| DOI： |
| 分类号:TM315 |
| 基金项目:中国博士后科学基金项目(20060390092)~~ |
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| Review of voltage sag generator for wind power |
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HU Shuju LI Jianlin LIANG Liang XU Honghua
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| Abstract: |
| The VSG(Voltage Sag Generator) is used to test the LVRT(Low Voltage Ride-Through) capability of wind power system,and its research work at home and abroad is summarized in detail.Three solutions are discussed: impedance-type VSG simulates voltage sags by adding series or parallel impedance in main circuit;transformer-type VSG simulates voltage sags by changing transformer combinations or taps;electronics-type VSG simulates voltage sags by using semiconductor power devices,which is more functional.Their work principles and implementations are analyzed and compared.Transformer-type VSG is widely used now because of its simple structure,high reliability and low cost,while electronics-type VSG will get more applications for its small size and better performance. |
| Key words: wind power system test,low voltage ride-through,voltage sag generator |
