Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于RC装置的风电场合闸暂态过电压防护的仿真研究

来源:电工电气发布时间:2016-06-01 10:01 浏览次数:8
基于RC装置的风电场合闸暂态过电压防护的仿真研究
 
龚祖春1,孙留学2,张涛2,胡汉梅2
(1 中国葛洲坝集团电力有限责任公司,湖北 宜昌 443002;
2 三峡大学 电气与新能源学院,湖北 宜昌 443002)
 
    摘 要:介绍了风电场电气设备遭受过电压时的特点及其危害,采用PSCAD 电磁暂态仿真软件建立了风电场模型,分析了风电场合闸过电压的过程,提出了阻容吸收器防护机端变压器过电压措施,结果表明:采用合适的阻容保护装置可以将过电压幅值和陡度限制在合理的电压范围内,能够有效防止风电场合闸过电压。
    关键词:风电场;过电压;RC 装置;绝缘;电缆系统
中图分类号:TM614;TM862 文献标识码:A 文章编号:1007-3175(2016)05-0019-04
 
Simulation Study on Transient Overvoltage Protection in Wind Farms Closing Based on RC Device
 
GONG Zuchun1, SUN Liu-xue2, ZHANG Tao2, HU Han-mei2
(1 Gezhouba Group's Electric Power Company Ltd, Yichang 443002, China;
2 College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China)
 
    Abstract: Introduction was made to the characteristic and its damages of overvoltage in wind farms. This paper established a wind farm model of PSCAD electromagnetic transient simulation, analyzed the process of closing overvoltage, and proposed overvoltage protection measures of wind turbines transformers using resistance-capacitance absorber. The results show that adopting suitable resistance-capacitance protector could restrict the amplitude of voltage and gradient within the reasonable scope, which prevents wind farms closing overvoltage effectively.
    Key words: wind farm; overvoltage; RC device; insulation; cable system
 
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