中国电机工程学报2017，Vol.37Issue(19)：5622-5632,11.DOI:10.13334/j.0258-8013.pcsee.162125
提高风电机组发电量的转矩-变桨协调控制策略
Torque-pitch Coordinated Control for Improving the Power Production of Wind Energy Conversion System
摘要
Abstract
Due to the constrains of achievable speed operation range and slow tracking dynamics of generator rotor,the variable speed constant frequency wind turbines is not able to keep working on optimal tip speed ratio from cut-in wind speed all the way to rated wind speed.This paper deduced the character of optimal pitch angle,and the coordinated torque-pitch control strategy is proposed to let wind turbine operates on the possible local optimal working point when the tip speed ratio deviates from its optimal value,thus improve the power production.Meanwhile,the global optimum pitch angle self-tuning algorithm is proposed to rectify the installation error of the blades;a dynamic wind speed compensation method is proposed to estimate the immeasurable effective wind speed.The validity of coordinated control is verified with RTDS & Bladed co-simulation platform;then the long time simulation with measured wind speed profile is carried out to further evaluate the promotion of power production.The results show that the proposed method can improve the power production effectively.关键词
风电机组/协调控制/最大功率跟踪/变桨控制/有效风速/自寻优Key words
wind energy conversion system (WECS)/coordinated control/maximum power point tracking (MPPT)/pitch control/effective wind speed/self-tuning分类
信息技术与安全科学引用本文复制引用
贾锋,蔡旭,李征,李悦强..提高风电机组发电量的转矩-变桨协调控制策略[J].中国电机工程学报,2017,37(19):5622-5632,11.基金项目
台达环境与教育基金会资助项目(DREM2016005).Sponsored by Grants from the Power Electronics Science and Education Development Program of Delta Environmental & Educational Foundation (DREM2016005). （DREM2016005）
