Hardware-in-the-Loop simulation verification of a smooth transition algorithm between Maximum Torque per Ampere control and single current regulator

Single Current Regulator (SCR) is proven able to achieve deep flux-weakening operation of Permanent Magnet Synchronous Machines (PMSMs). A novel method is proposed to assure the smooth transition between Maximum Torque per Ampere (MTPA) and SCR control. This paper focuses on the development of a Hardware-in-the-Loop (HIL) Permanent Magnet Synchronous Machine drive testing system, and through this system, the proposed transition algorithm between MTPA control and SCR can be verified in real time and implemented in the real system concurrently.