摘要
目前国内大规模风电汇集系统均配置了容量充足的动态无功补偿装置,但大部分装置实际运行性能并不理想,在风电脱网等故障期间无法充分发挥无功快速调节及稳定系统电压的作用。为解决风电场动态无功补偿装置存在的问题,研究相应的改进措施以提高风电汇集地区无功电压控制能力至关重要。依据某大规模风电基地2011—2014年风电运行数据,对动态无功补偿装置在典型故障期间的响应特性进行了详细分析,将风电场动态无功补偿装置存在的问题归纳为投运率低、运行可靠性低、动态响应速度慢、装置实际容量与额定容量不符、控制策略不当以及动态无功裕度不足等,并针对上述问题提出了提升动态无功补偿装置技术性能及运行管理水平的措施。
Large-scale wind power systems in China are equipped with ample dynamic reactive power compensation equipment. However, most of the equipment is not performing optimally as desired for failing to adjust reactive power promptly to control the voltage of wind power system. In order to find out the problems of the dynamic reactive power compensation equipment, and thus to take effective measures, performance of the dynamic reactive power compensation devices were analyzed based on the operating data from 2011 to 2014 of an actual large-scale wind power system. The problems of the equipment could be ascribed as low usage rate, low operational reliability, slow dynamic response speed, inconformity with nominal capacity, improper control strategies, insufficient margin of adjustable reactive power, etc. Suggestions for improving performance of the dynamic reactive compensation equipment and the safety operation level of large-scale wind power system were proposed.
出处
《电网技术》
EI
CSCD
北大核心
2015年第7期1873-1878,共6页
Power System Technology
基金
"国家电网公司风光储联合发电运行技术实验室"的资助
关键词
风电场
动态无功补偿装置
动态响应时间
无功电压控制
wind farm
dynamic reactive power compensation equipment
dynamic response time
reactive power and voltage control
