Permanent magnetic synchronous motor(PMSM) has its outstanding performance relative to other motors, so it is used so widely in every field of industry, especially in elevator and high precision servo system. And rare earth which consist the permanent magnet is so rich in our country, so it is very important for us to do research in controlling of PMSM.Have read so many datum and document , and based on fully understanding of PMSM controlling technique and tendence , the Paper analysed the function of elevator system, and have designed the hardware of the system. The Paper also analysed some method of controlling PMSM, raised iu = 0 method of rea1izat ion.Based on the hardware of PMSM control ling system, we designed the software, and successfully made the inverter system of controlling 15kW PMSM. The data of experiment verify that the whole system satisfied the target. |