Study on the DTC Performance Improvement Based on Fuzzy-PI Control
There exists some problems of flux ripple and the switching frequency uncertainty in the traditional Direct Torque Control (DTC) .In order to improve the low-speed performance of the Machine direct torque control system, fuzzy direct torque control system is set up through fuzzy controller to replace Smith flip-flop ,we use fuzzy PI controller take place of traditional PI controller, also we establish the simulation model in the Matlab/Simulink environment, simulation results show that torque ripple and current distortion is decreased by use improved programs, can prove the effectiveness of this strategy.
B. L. Liu, Minghai Yuan, Guorong Chen and Jun Peng
L. Yang et al., "Study on the DTC Performance Improvement Based on Fuzzy-PI Control", Applied Mechanics and Materials, Vols. 427-429, pp. 1201-1204, 2013