异步风力发电机复合跟踪控制  

Compound tracking control of asynchronous wind power system

作　　者：孙冠群 SUN Guanqun(College of Modern Scinece and Tenology,China Jiliang University,Yiwu 322002,China)

机构地区：[1]中国计量大学现代科技学院,浙江义乌322002

出　　处：《电气应用》2023年第10期21-26,共6页Electrotechnical Application

基　　金：浙江省自然科学基金(LY20E070006)。

摘　　要：变速风力发电系统的最大功率点跟踪(Maximum Power Point Tracking,MPPT)方法在其系统运行中具有重要意义,可明显增强电能输出,但一般常忽视发电机本身的损耗问题。针对增强变速风力发电机系统的电能输出能力,提出从两个方面采取措施:一是在传统功率信号反馈法MPPT基础上,提出引入模糊PI算法处理功率反馈值与给定值的误差;二是建立异步风力发电机最小损耗点跟踪(Minimum Loss Point Tracking,MLPT)方法的数学模型,提出采用最小损耗点磁链与实时计算磁链比较,误差信号经PI调节控制发电机系统。仿真与实验证实了该复合方法对提高变速异步风力发电机系统效率,即提高电能输出能力有一定效果。The maximum power point tracking(MPPT)method of variable speed wind power generation system has an important significance in wind power generation system.It could increase the production of electric energy.In this paper,the more electrical energy production,to take measures from the two aspects.One is the use of fuzzy PI algorithm,to process error between power feedback value and a given value based on traditional power signal feedback method of MPPT.The second is using error signal produced by comparison value of the minimum loss point flux and real time flux,to control the generator system through PI regulator method based on mathematical model of asynchronous wind generator minimum-loss point tracking(MLPT)method.The simulation and experimental results confirm that the proposed method is feasible.

关 键 词：变速异步风力发电系统 最大功率点跟踪 功率信号反馈法 模糊PI控制 最小损耗点跟踪 

分 类 号：TM315[电气工程—电机]