Abstract：The research of start-up performance has been an important issue since the invention of inductor motor. By traditional method, the output torque is sufficient and the output current is so heavy that impacting on electrical source, load, insulation, etc. By AC adjusting speed control, the current restriction of the semiconductor devices must be enough, otherwise will be damaged, which increase cost. In this paper, the reason of heavy current in start-up is explained; a new compound method of DC pre-excitation is proposed. Before starting of motor, the controller makes sure that flux linkage is established in some phase of stator, then turn to vector control as soon as motor start-up. The flux component and torque component are decoupled dynamically based on the above strategy. Simulation and experimental results show that the DC pre-excitation is feasible, and current vary smoothly which avoid significant pulse contrast to other start-up method. Meanwhile output torque response is rapid.
耿士广, 胡安, 马伟明, 李卫超, 何娜, 鲁军勇. 矢量控制感应电机起动机理及直流预励磁研究[J]. 电工技术学报, 2011, 26(3): 29-35.
Geng Shiguang, Hu An, Ma Weiming, Li Weichao, He Na, Lu Junyong. Vector Control Start-Up Mechanism of Inductor Motor and Research of DC Pre-Excitation. Transactions of China Electrotechnical Society, 2011, 26(3): 29-35.
2011, Vol. 26 
