Call For Paper Volume:6 Issue:11 Nov'2019 |

Indirect torque control of SR motor based on Hysteresis current controller with PI control for speed regulation

Publication Date : 27/07/2016



Author(s) :

A. John Britto , J. Jawahar Babu , Pon.Ma.Geo.


Volume/Issue :
Volume 3
,
Issue 7
(07 - 2016)



Abstract :

As traditional control schemes, open-loop Hysteresis and closed-loop pulse-width-modulation (PWM) have been used for the switched reluctance motor (SRM) current controller. The Peak to peak controller induces large unpleasant audible noises because it needs to vary the switching frequency to maintain constant Hysteresis current band. In contract, the Hysteresis PWM controller is very quiet but difficult to design proper gains and control bandwidth due to the nonlinear nature of the SRM. In this thesis, the ac small signal modeling technique is proposed for linearization of the SRM model such that a conventional PI controller can be designed accordingly for the PWM current controller. With the linearized SRM model, the duty-cycle to output transfer function can be derived, and the controller can be designed with sufficient stability margins. The proposed PWM controller has been simulated to compare the performance against the conventional controller based system. The closed loop PI controller is used to run the SR motor speed as constant.


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Indirect torque control of SR motor based on Hysteresis current controller with PI control for speed regulation

July 18, 2016