Title :
Sliding mode based speed regulating of PMSM MTPA control system for electrical vehicles
Author :
Ningzhi Jin ; Xudong Wang ; Hanying Gao ; Jinfeng Liu
Author_Institution :
Sch. of Electr. & Electron. Eng., Harbin Univ. of Sci. & Technol., Harbin, China
Abstract :
A sliding mode variable structure control (SMVSC) based speed regulating strategy is introduced to Permanent Magnet Synchronous Machine (PMSM) MTPA (Maximum Torque per Ampere) control system in order to improve the system robustness against parameter perturbations and external disturbances for electric vehicle motor drive system. Aiming at alleviating intrinsic chattering in the sliding mode control system, an improved variable exponent reaching law based sliding mode control method is proposed, and integral sliding surface and continuous switching function are adopted in speed loop. Simulation and experimental results demonstrate that the designed controller enhances system robustness and ensures good dynamic and static characteristics for electric vehicle motor drive system.
Keywords :
angular velocity control; electric current control; electric vehicles; machine control; permanent magnet motors; synchronous motor drives; torque control; variable structure systems; continuous switching function; electric vehicle motor drive system; external disturbances; integral sliding surface; intrinsic chattering; maximum torque per ampere control system; parameter perturbations; permanent magnet synchronous machine; sliding mode based speed regulation; speed loop; system robustness improvement; variable exponent reaching law; Mathematical model; Motor drives; Sliding mode control; Stators; Switches; Torque; MTPA; PMSM; SMVSC; integral sliding surface; variable exponent reaching law;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023260
