摘要
按风速权重风电场有功功率分配算法存在有功功率输出波动大、桨距角频繁调节的问题,为此本文提出一种基于模糊评价的风电场有功功率分配算法。将风电机组限功率运行分为变速、变速变桨和变桨三个运行区,以风电机组的桨距角、转速和风速为输入,通过分区域模糊推理,得到风电机组的健康度和调节能力,最终采用按能力权重分配算法得到风电机组有功功率给定。仿真结果表明,基于模糊评价算法的风电场有功功率输出平滑,风电场机组转速变化和桨矩角变化都较小。
The active power dispatching algorithm of wind farms based on wind speed weight has the problems of large fluctuation of active power output and frequent adjustment of pitch system.Therefore,an active power dispatching algorithm based on fuzzy evolution had been proposed.The wind turbine curtailment power operation is divided into variable speed,variable speed joint variable pitch and variable pitch operation zone.Taken the pitch angle,rotating speed and wind speed as inputs,the schedule and regulation capacity of wind turbine is given by piecewise fuzzy inferring.Finally,the active power of the wind turbine is obtained by the active power dispatching algorithm based on the capacity weight distribution.The simulation shows that,through the active power dispatching algorithm based the fuzzy evaluation,the active power output of wind farm is smoother and the amplitude of pitch angle is decreased.
作者
刘军
张彬彬
赵婷
Liu Jun;Zhang Binbin;Zhao Ting(School of Automation and Information Engineering Xi’an University of Technology,Xi’an 710048,China)
出处
《电工技术学报》
EI
CSCD
北大核心
2019年第4期786-794,共9页
Transactions of China Electrotechnical Society
基金
陕西省重点研发计划项目(2017GY-061)
关键词
有功功率分配
风电场
限功率
模糊评价
The active power dispatching
wind farm
power-limited control
fuzzy evaluation
