大功率中速永磁风力发电机设计及性能研究  

Design and Performance Research of High-Power Medium-Speed Permanent Magnet Wind Power Generator

作　　者：杨波 贺建湘 刘中华 阳雪兵 刘亚 YANG Bo;HE Jianxiang;LIU Zhonghua;YANG Xuebing;LIU Ya(XEMC Wind Power Co.,Ltd.,Xiangtan 411101,China;State Key Laboratory of Offshore Wind-Power Technology and Testing,Xiangtan 411102,China)

机构地区：[1]湘电风能有限公司,湖南湘潭411101 [2]海上风力发电技术与检测国家重点实验室,湖南湘潭411102

出　　处：《电机与控制应用》2020年第7期35-38,47,共5页Electric machines & control application

摘　　要：提出了一种基于ANSYS Maxwell 2D等效磁路法的电磁仿真和工程热分析相结合的电机设计方法。通过Maxwell 2D对4.8 MW中速永磁风力发电机进行设计,为了进一步研究发电机的运行特性,建立了永磁发电机有限元分析计算模型。对发电机的空载、额定负载和短路性能进行仿真分析计算,获得各工况下的电流、反电动势和电磁转矩等波形,并且采用热路法对电机各部分温升情况进行计算。仿真计算结果表明该发电机设计合理,各项指标均符合要求。电磁仿真和工程热分析相结合可以更加准确地指导电机设计,为发电机的电磁设计和结构优化提供理论依据。A generator design method which is the combination of electromagnetic simulation based on equivalent magnetic-circuit method using ANSYS Maxwell 2D and engineering thermal analysis is presented.Through the analysis and calculation by ANSYS Maxwell 2D,the 4.8 MW medium-speed permanent magnet wind power generator is designed.In order to further study the operation characteristics of the generator,the finite element analysis and calculation model of the permanent magnet generator is established.The no-load,rated-load and short-circuit performances of the generator are simulated,and the current,induced voltage and electromagnetic torque are obtained.Finally,the temperature rise of each part of the generator is calculated by the thermal circuit method.The calculation results show that the design of the generator is reasonable and all indexes meet the requirements.The combination of electromagnetic simulation and engineering thermal analysis can make the generator design more accurately.It provides the theoretical basis for the electromagnetic design and structural optimization of generators.

关 键 词：风力发电机 中速 电磁分析 

分 类 号：TM[电气工程]