联合转动惯量与电气阻尼虚拟配置的风电轴系宽频扭振镇定方法  

Suppression of the Wide Frequency-band Torsional Vibration of WECS Drive Train With Combined Virtual Configuration of Electrical Inertia and Damping

作　　者：贾锋 谭旭辉 许喆 符杨 JIA Feng;TAN Xuhui;XU Zhe;FU Yang(College of electrical engineering,Shanghai University of Electric Power,Yangpu District,Shanghai 200090,China)

机构地区：[1]上海电力大学电气工程学院,上海市杨浦区200090

出　　处：《中国电机工程学报》2023年第2期519-529,共11页Proceedings of the CSEE

基　　金：上海市青年科技英才扬帆计划(20YF1414600);上海市科技计划项目(22dz1206100);上海高校青年教师培养资助计划(ZZsdl19010)。

摘　　要：风电轴系扭振会造成轴系部件提前失效,对整机寿命及可利用率十分不利。基于闭环传递函数分析了轴系物理参数对湍流激励下宽频受迫扭振的影响,表明增加风力机转动惯量或降低发电机转动惯量可抑制受迫扭振,特别的,当且仅当发电机转动惯量降为零时扭振幅度最低。在轴系主视角下将发电机转矩分解为电气阻尼分量和电气转动惯量分量,分析了二者对轴系扭振抑制的可协调性,提出联合配置发电机电气转动惯量和电气阻尼的扭振抑制策略。在主控制器硬件在环的GHBladed仿真中验证理论分析和控制设计的有效性,结果表明,所提控制可显著降低风速持续扰动产生的扭振和疲劳损伤,并可一定程度提高发电量。The torsional vibration will cause early failure of drive train components,which is very detrimental to the reliability and availability of wind energy conversion systems(WECS).The impacts of drive train physical parameters on broadband forced torsional vibration are analyzed based on the closed loop transfer function.It shows that a larger moment of inertia of the wind turbine or a smaller moment of inertia of the generator helps to reduce torsional vibration;and particularly,if and only if the moment of inertia of the generator is zero,torsional vibration is the lowest.Focusing on the drive train,the generator torque is divided into the electrical damping component and the electrical inertia component.The compatibility of the two on the suppression of torsional vibration is analyzed,and the combined virtual configuration strategy of electrical inertia and electrical damping is proposed.The correctness of the theoretical analysis and the validity of the control strategy is verified in the hardware-in-loop simulation based on GH Bladed.The results show that the proposed control can significantly reduce the torsional vibration and fatigue damage caused by continuous wind speed disturbance,and can slightly improve the power production.

关 键 词：风电机组 轴系 扭振 转动惯量 主动阻尼 

分 类 号：TM614[电气工程—电力系统及自动化]