The Open Electrical & Electronic Engineering Journal

2015, 9 : 600-609
Published online 2015 November 11. DOI: 10.2174/1874129001509010600
Publisher ID: TOEEJ-9-600

Study of Direct Torque Control Scheme for Induction Motor Based on Torque Angle Closed-Loop Control

Xuande Ji , Daqing He and Yunwang Ge
College of Electrical Engineering and Automation Luoyang Institute of Science and Technology, No.8 XueZi Street Luolong District Luoyang HeNan, 471023, China.

ABSTRACT

For disadvantages of the large flux and torque ripple and current waveform distortion of Direct Torque Control (BASIC-DTC), the DTC scheme for induction motor based on torque angle closed-loop control was presented and the proposed scheme was realized with three methods of torque angle closed-loop control. The main characteristics of three methods of torque angle closed-loop control for the proposed scheme was analyzed, emphasizing their advantages and disadvantages. The performance of three methods of torque angle closed-loop control for the proposed scheme was studied in terms of flux and torque ripple, current waveform distortion and transient responses. Simulation results showed that the proposed scheme improves the performance of induction motor BASIC-DTC by combining low flux ripple, low torque ripple and low current waveform distortion’s characteristics with fast dynamics.

Keywords:

BASIC-DTC, Closed-Loop, Induction Motor, SVM, Torque Angle Control.