| There is a energy crisis in the world, and the inadequacy of electricalenergy is one of the serious problem. Because of the large percentage ofelectrical energy that motors consume, it is important for motors to saveenergy. According to the shortcomings of lower power factor and worsecontrol charactor that AC control system used to show, a new kind ofpermanent magnet synchronous motor is designed in this article. Based onthe electromagnetic calculation, a computer program is made. It can beconcluded from the simulation result that the permanent magnetsynchronous motor is characterized by high power and efficiency, as wellas good transient quality. The control system composed of PMSM is aenergy-saving system of high quality.
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