Fuzzy maximum torque per ampere and maximum torque per voltage control of interior permanent magnet synchronous motor drive

Abstract

The issue of maximum torque per ampere (MTPA) and maximum torque per voltage (MTPV) control of an interior permanent magnet synchronous motor (IPMSM) is discussed in this paper. A position sensor such as a Hall effect sensor or optical encoder is used in the system. The system will achieve the maximum electromagnetic torque by using MTPA control to drive the IPMSM. As the speed increases to the flux weakening region, MTPV is adopted to give more output torque and promote motor performance. Without dealing with the complex computation of torque control optimization, in this paper we propose fuzzy control to improve the considerable computation burden. The simulation of fuzzy MTPA and MTPV control of IPMSM by Simulink is designed to verify the effectiveness of this computation.