Maximum Torque Control of Servo Motor for Wide Speed Range
Based on the mathematical model and current control theory of surface mounted servo motor, this paper presents a novel combined current control algorithm, aiming to achieve the maximum torque output in wide speed range. Through the combination of different current control algorithms, the full utility of voltage and current limits as well as the demagnetizing limit of permanent magnet, the capability of output torque at high speed is enhanced and the scope of high-speed operation is expanded. In this paper, the rules how these performance properties such as output torque, power, power factor, demagnetizing coefficient and efficiency affected by speed under different current control algorithms were examined both in simulation and experiment, which proved that with this algorithm the maximum torque and output power can be obtained in wide speed range. It also has the advantages of simple structure, easy work-up procedure, and wide application in high speed machine tool servo system.
Permanent magnet synchronous motor Vector control Flux-weakening Real-time implementation Simulation
Zhi Ji Fengyou He
School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou, School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou,
国际会议
哈尔滨
英文
3353-3357
2011-08-12（万方平台首次上网日期，不代表论文的发表时间）