Robust design of radial electromagnetic force of permanent magnet synchronous machines based on manufacturing tolerance

This paper discusses the effect of considering manufacturing tolerance uncertainty on the robustness of radial electromagnetic force in permanent magnet synchronous machines(PMSMs). This research presents a method for robust design of radial electromagnetic force based on Non-dominated Sorting Genetic Algorithm-II(NSGA-II). A noise table of the manufacturing tolerances of the design variables of the machine is designed to simulate the performance differences caused by the actual manufacturing tolerances. This method can extract the standard deviation of the performance of the same control scheme. In this paper, it is applied to a 54-slot/6-pole interior PMSM to do robust design of radial electromagnetic force specific spatial and temporal order harmonic.