宽调磁范围的混合励磁同步发电机  

Hybrid Excitation Synchronous Generator with Widerange of Magnetic Field Regulation

作　　者：周琳[1] 夏永洪[1,2] 张聪 李梦茹[1] 

机构地区：[1]南昌大学信息工程学院,南昌330031 [2]国网江西省电力公司电力科学研究院,南昌330096

出　　处：《中国农村水利水电》2017年第9期169-172,共4页China Rural Water and Hydropower

基　　金：国家自然科学基金资助项目(51367013);江西省杰出青年人才计划项目(20162BCB23011);江西省自然科学基金资助项目(20161BAB206125);江西省重点研发计划项目(20161BBE50054);南昌大学研究生创新专项资金项目(CX2016267)

摘　　要：针对现有一些混合励磁同步发电机气隙磁场调节范围小的问题,提出了一种具有宽范围调磁能力的混合励磁同步发电机,该发电机由4个永磁磁极和4个铁磁磁极组成。基于等效磁路法,分析了该混合励磁同步发电机气隙磁场调节原理。采用Maxwell软件对该发电机进行了仿真,得到了该发电机的空载特性、调节特性和线电压波形,并与实验结果进行了比较。当励磁电流从0增加到8 A时,线电压增加了104.2%,表明了该混合励磁发电机调磁范围宽,验证了该方案的正确性,以及计算方法的准确性。A novel hybrid excitation synchronous generator with wide range magnetic regulation ability is proposed to solve the problem of small range of air-gap field adjustment in current hybrid excitation synchronous generators, and it has 4 permanent magnetic poles and 4 ferromagnetic poles. The principle of air-gap magnetic field adjustment of the hybrid excitation synchronous generator is analyzed based on the equivalent magnetic circuit method. The no-load characteristics, regulation characteristics and line voltage waveform of the generator are simulated by using Maxwell software, which compared with the experimental results. The line voltage is increased by 104.2% as the excitation current is increased from 0 to 8 A, which indicates that the hybrid excitation generator has a wide range of magnetic adjustment. The correctness of the scheme and the feasibility of the computing method have verified by the results.

关 键 词：混合励磁 宽调磁范围 同步发电机 永磁电机 

分 类 号：TV734.2[水利工程—水利水电工程]