关键词: 遗传算法, 模式搜索算法, 失步转矩, 效率, 优化设计, 永磁同步电动机

Abstract:

Permanent magnet synchronous motor is widely used in textile machinery. Genetic algorithm and pattern search algorithm were used to optimize the pull-out torque and efficiency of interior permanent magnet synchronous motor used in airflow spinning machine. Genetic algorithm was applied in the early stage of optimization,The strategy adopted in the optimization process was to preserve the best individuals in the population. In the later stage by using the pattern search method, solving the local extreme point problem that genetic algorithm is easy to fall into the optimal solution in the later stage of optimization, so as to improve the convergence speed and the optimization efficiency. The optimization results showed that genetic algorithm and pattern search algorithm can get higher optimization target value compared with traditional genetic algorithm. The industrial trial run of the optimized prototype showed that the feasibility of the optimized design scheme.

Key words: genetic algorithm (GA), pattern search algorithm (PSA), pull-out torque, efficiency, optimal design, permanent magnet synchronous motor