关键词: 双Y移30°, 六相永磁同步电机, 电机驱动, 多相电机, 矢量控制, 数学模型, MATLAB

Abstract: The thesis mainly aims at studying double-Y shift 30 six-phase permanent magnet synchronous motor，which gets the mathematical model that is used for vector control by coordinate change，this thesis also analyses the application in multi-phase motor drive system of which current control strategy which takes straight axis  as control scheme meanwhile the thesis shows the vector control frame diagram. Secondly，it also analyses that under the MATLAB simulation circumstance，it set up the simulation model of its motor body control and all modules. Finally，by providing basic motor parameter and theory，calculate the parameter used in simulation and take it into simulation verification. The research shows that the control strategy which has been put forward is effective and also verifies the rationality and accuracy of the mathematical model set up and the simulation model set up，which is very helpful for drive study of multi-phase motor in the future.

Key words: Double Y shift 30 six-phase permanent magnet synchronous motor, Motor drive, Multi-phase motor, Vector control, Mathematical model, MATLAB