摘要
传统变速变桨风电机组采用比例积分微分模型(proportion integral differential,PID)控制的最佳桨距角变桨策略,变桨频繁,变桨轴承易损坏且不易维修,为此提出一种减少变桨动作,延长变桨轴承寿命的变桨系统优化策略。在最佳桨距角策略基础上提出风速波动阈值指标建立优化模型,以风速波动阈值指标为输入条件,基于麻雀搜索算法对提出的优化模型进行求解。将所提优化模型应用于某风电场进行计算,结果表明在满足输出功率要求情况下,与传统模型相比变桨轴承寿命有所增加,总体收益提高,具有一定的实用性。
The traditional variable speed variable pitch wind turbine adopts the optimal pitch angle pitch strategy of proportional integral differential(PID)control.The pitch is frequent,and the pitch bearing is easy to damage and difficult to repair.Therefore,this paper proposes an optimization strategy of pitch system to reduce the pitch action and prolong the life of the pitch bearing.Based on the optimal pitch angle strategy,the threshold index of wind speed fluctuation is proposed to establish the optimization model.Finally,taking the threshold index of wind speed fluctuation as the input condition,the optimization model is solved based on sparrow search algorithm.The proposed optimization model is applied to a wind farm,and the results show that compared with the traditional model,the life of pitch bearing is increased,the overall income is improved,and it is practical.
作者
王禹
韩爽
王其乐
刘永前
WANG Yu;HAN Shuang;WANG Qile;LIU Yongqian(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Changping District,Beijing 102206,China;School of New Energy,North China Electric Power University,Changping District,Beijing 102206,China;Zhongneng Power-Tech Development Co.,Ltd.,Xicheng District,Beijing 100034,China)
出处
《分布式能源》
2021年第2期32-39,共8页
Distributed Energy
基金
国家重点研发计划项目(2019YFE0104800)。
关键词
风电机组
变桨轴承
变桨优化
麻雀搜索算法
wind turbine
pitch bearing
pitch optimize
sparrow search algorithm
