Title :
A New Control Scheme for the Speed Control of PMBLDC Motor Drive
Author :
Thirusakthimurugan, P. ; Dananjayan, P.
Author_Institution :
Dept. of Electron. & Instrum. Eng., Pondicherry Eng. Coll.
Abstract :
The design of current and speed controllers for permanent magnet brushless DC (PMBLDC) motor drive remains to large extent a mystery in the motor drives field. A precise speed control of PMBLDC motor is complex due to non linear coupling between winding currents and rotor speed as well as non-linearity present in the developed torque due to magnetic saturation of the rotor. This paper presents a new control scheme to the conventional PMBLDC motor, aimed at improving control system robustness via complete decoupling of the design and performance of the control loops that ensures robustness by minimizing the mutual influence among the speed and current control loops. This robust decoupling control scheme would be applicable to both static and dynamic aspects. The effectiveness of the proposed robust speed control scheme is verified by simulation at different values of inertial load variations
Keywords :
DC motor drives; brushless DC motors; control nonlinearities; control system synthesis; electric current control; machine control; performance index; permanent magnet motors; robust control; velocity control; control nonlinearity; controller design; current control; nonlinear coupling; performance index; permanent magnet brushless DC motor drive; robust speed control; rotor magnetic saturation; rotor speed; winding current; Control systems; Couplings; Current control; Load management; Motor drives; Permanent magnet motors; Robust control; Rotors; Saturation magnetization; Velocity control; PMBLDC motor; performance index; robust control scheme;
Conference_Titel :
Control, Automation, Robotics and Vision, 2006. ICARCV '06. 9th International Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0341-3
Electronic_ISBN :
1-4214-042-1
DOI :
10.1109/ICARCV.2006.345061
