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

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.