风电机组低电压穿越能力影响因素分析与实例  

Analysis and examples on influence factors of wind turbine's low voltage ride through capability

作　　者：杨伟新[1] 宋鹏[1] 白恺[1] 刘辉[1] 吴宇辉[1] 杜军[1] 

机构地区：[1]华北电力科学研究院有限责任公司,北京100045

出　　处：《可再生能源》2016年第2期220-225,共6页Renewable Energy Resources

摘　　要：我国风电大规模汇集地区多处于电网末端,电压波动性强,随着对风电并网安全的关注和风电机组并网性能要求的提高,低电压穿越能力已成为衡量风电机组并网性能的重要指标。文章调研了同一区域内多个风电场实际运行中的低电压穿越故障情况,分析了整机制造厂家、高校及相关研究机构对风电机组低电压穿越技术的研究现状。通过分类统计测试过程中遇到的风电机组低电压脱网故障和总结56台风电机组的低电压穿越测试结果,分析了造成风电机组低电压穿越能力不足的原因,并对引起风电机组低电压穿越能力不足的影响因素进行了阐述。目前,软件版本控制、保护定值的设置与管理、硬件的维护水平已经成为并网风电机组低电压穿越能力的主要影响因素。Most of the large-scale collection regions of wind power in our country is in the end of power grid, the voltage fluctuation is strong. As peoples are getting more and more attention to the safety of power grid connected wind turbines and more and more requirements of the performance of wind turbine, the ability of low voltage ride through has become one of the most important indexes to measure the performance of wind turbine. This paper research the low voltage ride through faults in the actual operation of multiple wind farms in the same region and analysis of the machine manufacturers, universities and research institutions to research on technology of wind turbine＇s low voltage ride through. The low voltage ride through fault and the test results of 56 wind turbines are summarized. The reasons for the low voltage ride through capability of the wind turbine generator are analyzed. This paper also analyzes the cause of the failure of the low voltage ride through capability of the wind turbine generator, and expounds the influence factors of the low voltage ride through ability shortage of wind turbines. At present, the software version control, protection value setting and management, hardware maintenance level has become the main factor of the low voltage ride through capability of grid connected wind turbine.

关 键 词：风电场 并网风电机组 低电压穿越能力 现场测试 

分 类 号：TM89[电气工程—高电压与绝缘技术]