轴向磁通切换混合励磁电机励磁控制系统

Excitation Control System of Axial Flux-Switching Hybrid Excited Machine

针对传统转子永磁型电机存在磁通不可调节及可靠性不高等问题,提出一种定子分割式轴向磁通切换混合励磁同步电机,研究电机的稳压发电性能。本文以该新型电机为研究对象,推导电机的数学模型,建立电机励磁控制系统仿真平台;构建该电机励磁控制试验系统,测试负载和转速异常情况下的电机稳压发电性能。实验结果验证了理论仿真分析的正确性。研究表明:通过自动调节励磁电流,发电机端电压可在一定范围内保持稳定。

In order to improve the ability of adjustable magnetic flux and reliability on traditional rotor-PM motors, a stator-separated axial flux-switching hybrid excited synchronous machine （SSAFSHEM） is presented, and its performance of constant-voltage generation is investigated. On the basis of novel SSAFSHEM, the mathematical and simulated excitation control model of SSAFSHEM is established. The experimental platform for excitation control system was set up to test the performance of constant-voltage generation when the load or speed of motor varied. Experimental results verify the correctness of the theory, and show that the terminal voltage can be stable within a certain scope by adjusting exciting current automatically.