A Vector Control Method of PMSM Using Single Phase Current Sensor This paper presents a new method of realizing vector control for the surface mounted permanent magnet synchronous machine (PMSM) using single phase current sensor. A simplified estimating method of phase current, which only requires the information from single phase current sensor and motor position sensor, has been proposed in this paper. Compared with the classical approaches, based on the reference current in synchronous rotor frame, the proposed method can get better accuracy, especially when there is a sudden change of the reference current. Furthermore, the method not relays on the model and parameters of PMSM and the control performance of current closeloop and also not sensitive to working conditions. The extensively experimental results under different work conditions, based on MATLABSIMULINK, have validated the feasibility and robustness of the proposed vector control method.

Flux Regulation for Torquecontrolled Robotics Actuators Upon the employment of robots in applications beyond traditional industries, the need for development of torquecontrolled actuators has become more evident. To exploit the full capacity of torquemotion actuators, it is essential to regulate the motor flux in demand. Despite many studies in this area, major research in flux control has been dedicated to speed control. This work targets to present a novel and robust field weakening strategy for surface mounted permanent magnet motors (SPMSMs) when only a torque reference is given so that the motor velocity can adapt to operating conditions. The concept of proposed approach is elaborated and described qualitatively and mathematically. This work analyses the robustness of proposed approach to variation in motor parameters, and compares it with the performance of another approach in simulation and experimental results.