Optimization of a High-Speed External Rotor Electric Machine Using a Genetic Algorithm

Electric machines with permanent magnets represent a promising solution in problems in which small weight–dimension factors and high specific power are required. Electric and hybrid-electric power plants, in which high specific characteristics can be achieved by creating high-speed machines, are examples of such applications. In this case, strength and cooling are key problems. This article presents the results of optimization of the rotor design of an electric machine using evolutionary algorithm methods. The main dependences of variable parameters on the optimization criteria are also determined.