摘要
在高风电渗透电力系统中,风电场参与系统调频普遍忽略了尾流效应对风电机组出力的影响。文章提出了一种考虑尾流效应的风电场减载出力优化控制方案。首先,采用改进Jensen尾流模型,给出了任意风向的尾流区域划分方法;其次,在满足系统调频需求的前提下,以风电场有功出力最大为目标,对风电场功率分配进行优化;然后,针对不同风速区间设置了相应的优化控制方案,并给出方案的具体实现方法;最后,以江苏某海上风电场为例进行算例仿真,算例结果表明,所提方案可有效地提高风电场整体出力。
Wind farm participating in system frequency modulation always ignores the influence of wake effect in power system with high wind power penetration. Therefore, this paper proposes a new optimal control scheme for load reduction considering wake effect. Firstly, improved Jensen wake model is used to divide wake region under arbitrary wind conditions. Secondly, considering the requirement of system frequency modulation, the power allocation of wind farm is optimized to maximize the active power output of wind farm. Moreover, the corresponding control strategy is designed for the different wind speed region. Finally, Jiangsu offshore wind farm is simulated as an example to show that the proposed scheme can improve the wind farm output effectively.
出处
《可再生能源》
CAS
北大核心
2018年第1期117-125,共9页
Renewable Energy Resources
基金
国家电网公司科技项目(NY71-16-040)
关键词
风力发电
尾流效应
减载运行
有功出力
优化
wind power generation
wake effect
de-loading operation
active power output
optimization
