Novel Techniques for Fast Torque Response of IPMSM Based on Space-Vector Control Method in Voltage Saturation Region

In this paper, we propose two new voltage calculation methods for fast torque response of IPMSM in voltage saturation region, which are maximum torque response method and constant current response ratio method. Compared with the usual methods, which are constant phase angle method, constant back emf method and constant d-axis voltage method, the proposed methods give faster torque response confirmed by simulation and experimental results.