摘要
针对如何进一步降低永磁风力发电机的高次谐波含量,降低发电机铜耗和铁耗,以及有效地提高风力发电机性能的问题,在风力发电机设计研发中应用了六相双Y移30°绕组的多相绕组电机理论技术。利用Ansoft Maxwell 2D瞬态仿真功能,对采用相同定转子结构的普通三相60°相带发电机与六相双Y移30°绕组发电机,仅改变定子绕组的连接方式,分别进行了二维瞬态场建模。进行了空载运行和额定负载运行工况的瞬态有限元仿真分析,并针对负载时气隙磁密等进行了谐波的傅里叶分析。依据仿真分析中电流、电压、磁场等结果数据,进行了二者性能的区别比较。研究结果表明,六相双Y移30°发电机相比普通三相60°相带发电机而言,具有高次谐波含量低、电压范围大、电机损耗低、效率高等优势。
Aiming at further decreasing the harmonic content of the PM wind turbine,reducing the loss and improving its performance,six-phase double Y 30°-deflected winding of multiphase winding theory was used in the research and development.Ansoft Maxwell 2D transient simulation function was used to model ordinary three-phase and six-phase dual Y shift 30° motor,which was the same structure but only changing stator winding connection.Simulated by the no-load and rated load,and the air gap flux density harmonic of Fourier was analyzed,etc..Based on the difference of performance by simulation analysis data,the results indicate that compared with ordinary three-phase generators,six-phase double Y 30°-deflected generators have advantages such as less higher harmonic content,wider voltage range,lower loss,higher efficiency,etc..
出处
《机电工程》
CAS
2013年第12期1536-1539,共4页
Journal of Mechanical & Electrical Engineering
基金
国家重点基础研究发展计划("973"计划)资助项目(2012CB724403)
关键词
六相双Y移30°绕组
风力发电机
谐波分析
six-phase double Y 30°-deflected winding
wind turbine
harmonic analysis
