摘要
基于单机系统模型,研究系统的频率响应特性,针对系统频率响应特性中存在的敏感频段,提出基于带阻滤波原理的风电功率波动平抑控制策略,以改善风电功率波动对系统频率的影响。基于单机系统频率响应模型和实测风电场功率波动数据,设计系统中风电装机比例较高情况下的风电功率注入对系统频率影响分析算例,分析不同带阻滤波参数的风电功率波动平抑控制对系统频率偏差的改善效果。仿真结果表明,采用所设计的带阻滤波平抑控制策略能利用较小的储能容量最大限度改善风电功率波动对系统频率质量的影响。
The sensitive power fluctuation band in power system frequency control was revealed by studying the re- sponse characteristics of system frequency control model of single generator unit, a strategy for smoothing power fluctuations of wind farms based on the principle of band-stop filter was proposed to improve the system frequency quality due to wind generation in this paper. By using system frequency response model of one generator unit and the measured wind farm power fluctuation data, the simulation of wind power fluctuations impact on the system fre- quency while high wind power penetration was designed to analysis the improvement of system frequency quality with different band-stop filter parameters in the strategy. The simulation results showed that maximize improvement of the quality of the system frequency due to wind power fluctuations with smaller capacity of energy storage can be achieved by using the band-stop filter base smoothing control strategy.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2012年第7期1073-1079,共7页
Acta Energiae Solaris Sinica
基金
国家自然科学基金重点项目(60934005)
国家科技支撑计划(2011BAA07B07)
国家高技术研究发展(863)计划(2011AA05A112)
关键词
系统频率
风力发电
储能系统
带阻滤波
平抑控制
风电功率波动
system frequency
wind power
energy storage system
band-stop filter
smoothing control
fluctuationsof wind power
