国华永发风电场风电机组控制策略优化及变频器升级应用

Guohua Yongfa Wind Farm Wind Turbine Control Strategy Optimization and Frequency Converter Upgrade Application

在对国华永发风电场调研的基础上,针对1.5MW风电机组存在的问题,进行基于最佳叶尖速比跟踪的精细化控制模型算法的控制策略优化,包括转速及扭矩优化策略、叶片桨矩角动态控制策略、偏航优化策略、变桨轴承磨损保护策略和大风运行保护策略等,优化调整切入风速及相关参数,优化起停控制方式并对叶片安装初始角度进行精准调整,同时研究风电机组数据采集与监视控制系统改造技术,解决了变频器产品升级替换问题,提出提高风电机组安全可靠性的改进策略,通过相应对策的现场改造实施,风电机组发电量及可用率明显提升,达到预期效果。

Based on the investigation of Guohua Yongfa wind farm,this paper optimized the control strategy of the refined control model algorithm based on the optimal blade tip speed ratio tracking for the problems existing in 1.5 MW wind turbine,including:speed and torque optimization,blade pitch angle dynamic control strategy,yaw optimization strategy,rotor pitch bearing wear and high wind operation protection,etc.Optimizing the cut-in wind speed and related parameters,and optimizing the start-stop control mode and adjust the initial angle of blade installation,at the same time,studied the wind turbines supervisory control and data acquisition(SCADA)transformation technology,solved the problem of frequency converter product upgrade and replacement and put forward the improvement strategy of improving unit safety and reliability.Through the implementation of corresponding countermeasures,the generation capacity and availability of wind power units have been significantly increased,reaching the expected effect,accumulating valuable on-site application engineering experience,and laying a solid foundation for the promotion and application of the project.