关键词: 自起动同步磁阻电机, 不等匝绕组, 绕组系数, 起动能力, 性能

Abstract: This paper focuses on the performance optimization of low-cost and high-efficiency new line-start synchronous reluctance motors, with a particular emphasis on the application of unequal winding technology. Through theoretical and finite element simulation analysis, the performance differences between unequal winding types ( star-delta winding and sinusoidal winding) and the original star winding were compared. The study shows that the winding coefficient of the unequal winding is higher than that of the original winding,and the amplitude of the fundamental magnetic flux in the
air gap has increased by 3. 6% and 1. 5% respectively,while suppressing the 5th and 7th harmonics. The starting capability is improved,the loss during steady-state operation decreases,and the efficiency increases by 1. 3% and 0. 9% respectively. The unequal winding is an effective solution to enhance the comprehensive performance of line-start synchronous reluctance motors.

Key words: line-start synchronous reluctance motor, unequal-turn winding, winding coefficient, start-up capacity, performance