The Research of Closed Loop Control of AC Motor Based on J-M Transformation Control

Abstract

There are two classic strategy for AC motor control, they are vector control and direct torque control. In this paper, a new closed-loop control method based on vector control is proposed. We first introduce the basic formula of the J-M transform strategy. Secondly, the control block diagram of closed loop control based on J-M transform is analyzed in detail. Finally, the results of simulation are carried out. The simulation results show that the method of closed loop control based on J-M transform strategy can control AC motor effectively.

Measurement and Calibrate for Analog Quantity Based on the Control of Mobile Frequency Convertor

“…The electrical devices typically select embedded and distributed control system design scheme to solve the complex control problems of industry field [3,4]. The embedded analog measurement technology was one of core skills of distributed control system [5,6,7].…”