考虑不变桨风速范围的风电机组有功功率控制  

Active Power Control of Wind Turbines Considering Wind Speed Range of Non-pitch Regulation

作　　者：顾伟[1] 陈载宇 殷明慧[1] 李群 李强 邹云[1] GU Wei;CHEN Zaiyu;YIN Minghui;LI Qun;LI Qiang;ZOU Yun(School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China;State Grid Jiangsu Electric Power Co.,Ltd.Research Institute,Nanjing 211103,China)

机构地区：[1]南京理工大学自动化学院,江苏省南京市210094 [2]国网江苏省电力有限公司电力科学研究院,江苏省南京市211103

出　　处：《电力系统自动化》2023年第3期40-48,共9页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51977111);江苏省“六大人才高峰”高层次人才项目(XNY-025);江苏省科技成果转化专项资金项目(BA2019045)。

摘　　要：对于现有基于风轮被动变速的有功功率控制(APC)方法,桨距角改变仅发生在风轮转速达到转速边界时,而且由于其根据反馈控制律调节,被动变速风轮桨距角设定具有很强的随机性。研究发现,桨距角会明显改变被动变速风轮的动态特性,随机设定的桨距角难以适配实际风速的波动范围,引发风轮超速和电磁功率跌落。为此,文中基于不变桨风速范围指标,建立被动变速风轮桨距角与风速变化范围之间的适配关系,并提出考虑不变桨风速范围的风电机组APC方法。该方法通过增加桨距角设定环节,动态设定适配风速波动范围的桨距角,可克服现有APC方法中桨距角设定的随机性,从而降低风轮达到转速边界的频次,缓解风轮超速和电磁功率跌落。最后,基于风电机组动模实验平台的实验验证了所提方法的有效性。For the existing active power control(APC) methods based on the rotor with passive speed variation, the pitch regulation is only activated at the boundaries of variable-speed range and the pitch angle is set by feedback control laws. Therefore,the setting of the pitch angle of the rotor with passive speed variation has strong randomness. This paper reveals that the pitch angle significantly affects the dynamic characteristic of the rotor with passive speed variation. The randomly setting pitch angle is difficult to adapt to the fluctuation range of the actual wind speed, resulting in over-speeding of the rotor or electromagnetic power drop.Hence, based on the wind speed range of non-pitch regulation, the paper establishes the matching relationship between the pitch angle of the rotor with passive speed variation and the fluctuation range of wind speed, and the APC method of wind turbines considering the wind speed range of non-pitch regulation is proposed. This method can overcome the randomness of the pitch angle setting in the existing APC method by adding the pitch angle setting link and dynamically set the pitch angle that adapts to the wind speed fluctuation range, thereby reducing the frequency of the rotor reaching the rotational speed boundary, and alleviating wind turbine overspeed and electromagnetic power drop. Finally, experiments based on the experimental platform for the dynamic simulation of wind turbines verify the effectiveness of the proposed method.

关 键 词：风电机组 有功功率控制 被动变速风轮 不变桨风速范围 适配桨距角 风电机组动模实验平台 

分 类 号：TM315[电气工程—电机] TP273[自动化与计算机技术—检测技术与自动化装置]