Review of Maximum Torque Per Ampere Control for Interior Permanent Magnet Synchronous Machine Drives
The torque of the interior permanent magnet synchronous motor(IPMSM)is composed of electro-magnetic torque and reluctance torque.The improvement of IPMSM operation efficiency can be studied from the perspective of maximizing the use of its reluctance torque.The goal of the Maximum Torque Per Ampere(MTPA)control strategy is to make full use of IPMSM reluctance torque.In this paper,the MTPA control method is combed and summarized.The basic implementation algorithm is analyzed for different MTPA control modes.At last,a new MTPA control method based on virtual signal injection is introduced emphatically.
IPMSMauxiliary signal injectionMTPA control strategy