Title :
Fuzzy controller based DTC scheme for control of cage induction generator used for wind power applications
Author :
Pati, Swagat ; Samantray, Swati ; Naik, Amiya Kumar
Author_Institution :
Dept. of Electr. Eng. ITER, SOA Univ. Bhubaneswar, Bhubaneswar, India
Abstract :
A variable speed wind energy conversion system using a Direct torque controlled cage induction generator is discussed in this paper. The cage induction generator feeds power to the utility grid through a back-to-back PWM converter. The generator control system contains two hysteresis band limiters. One is to limit flux error within a specified band, and other one is for confining the torque error within specific limits. Control of cage induction generator is accomplished by PI controller based Direct Torque control (DTC) scheme. In order to get better performance a fuzzy controller is used in the torque loop in place of the PI controller. The whole scheme is simulated in Matlab and the results are interpreted. These results are then compared with the conventional PI controller results.
Keywords :
PI control; PWM power convertors; asynchronous generators; fuzzy control; hysteresis; machine control; magnetic flux; power grids; torque control; wind power plants; DTC scheme; Matlab; PI controller; back-to-back PWM converter; direct torque control scheme; direct torque controlled cage induction generator; flux error; fuzzy controller; generator control system; hysteresis band limiters; torque error; torque loop; utility grid; variable speed wind energy conversion system; wind power applications; Hysteresis; Induction generators; Stators; Switches; Torque; Turbines; Vectors; Direct torque control; Fuzzy controller; Induction generator; PI controller;
Conference_Titel :
Circuit, Power and Computing Technologies (ICCPCT), 2014 International Conference on
Print_ISBN :
978-1-4799-2395-3
DOI :
10.1109/ICCPCT.2014.7054794
