Title :
A new method to optimize q-axis voltage for deep flux weakening control of IPM machines based on single current regulator
Author :
Xu, Longya ; Zhang, Yuan ; Guven, Mustafa K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH
Abstract :
The single current regulator algorithm has been proven robust for flux weakening control of surface-mount PM (SPM) machines with active control of d-axis current and a fixed value of q-axis voltage applied. This paper proposes a new method to optimize the q-axis voltage adaptive to variable speeds and torque based on the single current regulator algorithm for the deep flux weakening control of a 50 kW interior permanent magnet (IPM) machine. The advantages of the improved single current regulator algorithm over the conventional one are analyzed and verified by computer simulations. The experimental results show that the proposed method is very robust for the deep flux weakening operation of an IPM motor in a 7:1 speed range.
Keywords :
electric current control; machine vector control; optimisation; permanent magnet motors; robust control; IPM motor; deep flux weakening control; interior permanent magnet machine; power 50 kW; q-axis voltage optimization; robust control; single current regulator; surface-mount PM machine; Adaptive control; Magnetic variables control; Optimization methods; Permanent magnets; Programmable control; Regulators; Robust control; Scanning probe microscopy; Torque control; Voltage control;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
