风浪扰动下海上风电机组塔架载荷与输出功率的协同优化控制  

Coordinated optimal control of tower load and output power for offshore wind turbines under wind and wave disturbances

作　　者：唐世泽 田德[1] 王爽[1] 陶立壮 邓英[1] 吴晓璇 TANG Shize;TIAN De;WANG Shuang;TAO Lizhuang;DENG Ying;WU Xiaoxuan(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206

出　　处：《电力自动化设备》2022年第9期87-93,共7页Electric Power Automation Equipment

基　　金：国家重点研发计划项目(2018YFB1501304)。

摘　　要：风浪扰动导致海上风电机组响应特性复杂,控制器需要综合处理多种外源扰动。此外,气动力造成风轮旋转与塔架运动的耦合作用,增加了变桨控制器设计的难度。首先,通过动力学分析建立合适的海上风电机组低阶数学模型。然后针对风浪扰动,提出了随机干扰调节控制器(SDAC)。最后协同输出功率控制与塔架载荷控制,设计含线性二次型调节器的变桨控制器。基于GH Bladed软件的仿真结果表明,相较于传统控制器,SDAC能够优化机组输出功率波动,降低塔架载荷,实现塔架载荷与输出功率的协同优化。The response characteristics of offshore wind turbines under wind and wave disturbances are complex,so the controller needs to comprehensively deal with various external disturbances.Besides,there is a coupling function between wind wheel rotation and tower movement due to aerodynamic force,which enhances the difficulty in variable pitch controller designing.Firstly,a low-order mathematical model suitable for offshore wind turbines is established through dynamic analysis.Then aiming at the wind and wave disturbances,the SDAC(Stochastic Disturbance Accommodating Controller)is proposed.Finally,coordinating output power control and tower load control,the LQR(Linear Quadratic Regulator)variable pitch controller is designed.Compared with the traditional controller,simulative results based on GH Bladed software show that SDAC can optimize the output power fluctuation of the units and reduce the tower load,which realizes the coordinated optimization of tower load and output power.

关 键 词：风力 波浪力 塔架载荷 变桨控制 转速控制 随机干扰调节控制器 KALMAN滤波 

分 类 号：TM614[电气工程—电力系统及自动化] P743.2[天文地球—海洋科学]