Composite Grinding Machine Asynchronous Electric Spindle Direct Torque Closed-Loop Servo Control Research

Abstract:

Composite grinding machine for non-circular shaft parts, on the workpiece servo spindle high requirements.In order to overcome the vector control coordinate calculation of complex, slow response speed and other defects, this paper adopts the direct torque control scheme of asynchronous motor spindle servo control research.Using the Matlab/Simulink module library provides the basic module, built asynchronous electric spindle direct torque control system model.Coordinate transformation process were established, flux adjust step, flux observation, link and loop PID position control module, and the use of subsystem package technology package.The current loop, speed loop, ring in position and torque simulation test, the results show that, the method of direct torque control of asynchronous motor spindle control drive control system can obtain good static and dynamic response characteristics and the closed-loop response performance.

• Periodical: Advanced Materials Research (Volume 650)
• Pages: 476-481
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.650.476
• Online since: January 2013
• Authors: Tian Lan, Qiu Shi Han, Bao Ying Peng, Shi Wei Hu
• Keywords: Asynchronous Electric Spindle, Closed Loop Control, Direct Torque Control (DTC)

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