| 考虑LVRT能力的风电场联络线距离保护研究 |
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| 引用本文： | 杨白洁,蒋甲丁,衣海东.考虑LVRT能力的风电场联络线距离保护研究[J].自动化技术与应用,2021,40(2):83-88. |
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| 作者姓名： | 杨白洁 蒋甲丁 衣海东 |
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| 作者单位： | 新疆工程学院,能源工程学院,新疆乌鲁木齐830023;新疆工程学院,能源工程学院,新疆乌鲁木齐830023;新疆科林思德新能源有限公司,新疆乌鲁木齐830011 |
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| 基金项目： | 基于LCC的配电网开关最优配置寻踪策略研究 |
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| 摘 要： | 具备低电压穿越(LVRT)能力的风电场能够在系统故障及电网电压跌落期间连续运行,因此,对具备LVRT能力的风电场联络线距离保护配置时,要综合考虑风电场LVRT时间。本文采用卸荷保护电路措施来提高永磁直驱风机(PMSG)的LVRT的能力,通过分析风电场LVRT与风机低电压保护动作时间配合关系,提出风电场联络线的距离保护时间配合的改进方案,最后仿真验证了提出方案的有效性和可行性。
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| 关 键 词： | 永磁直驱风机 低电压穿越 卸荷保护 距离保护 |
Research on Distance Protection of Wind Farm Tie Line Considering LVRT Capability |
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| YANG Bai-jie,JIANG Jia-ding,YI Hai-dong.Research on Distance Protection of Wind Farm Tie Line Considering LVRT Capability[J].Techniques of Automation and Applications,2021,40(2):83-88. |
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| Authors: | YANG Bai-jie JIANG Jia-ding YI Hai-dong |
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| Affiliation: | (College of Xinjiang Engineering,College of Energy Engineering,Urumqi 830023 China;Xinjiang Colin Think DE New Energy Co.,Ltd.,Urumqi 830011 China) |
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| Abstract: | Low voltage ride through(LVRT)capable wind farms can operate continuously during system failure and grid voltage drop.Therefore,the LVRT time of wind farms should be taken into account when configuring the distance protection of tie lines of wind farms with LVRT capability.In this paper,unloading protection circuit measures are adopted to improve the LVRT capability of permanent magnetic synchronous generator(PMSG).By analyzing the action time matching relationship between LVRT of wind farm and low voltage protection of fan,an improved scheme for distance protection time matching of tie line of wind farm is proposed.Finally,the effectiveness and feasibility of the proposed scheme are verified by simulation. |
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| Keywords: | PMSG LVRT unloading protection distance protection |
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