Paper title: ROBUST SPEED CONTROL OF A PROPULSION SYSTEM BASED ON SYMMETRICAL METHOD
Author(s): DJAMEL BENOUDJIT, NASREDDINE NAIT-SAID, MOHAMED-SAÏD NAÏT-SAÏD,
Abstract: This work presents the speed control of a propulsion control system (PCS) purpose for
an electric vehicle using dual-induction motors vector controlled wich drives separately
the rear wheels of the vehicle via fixed gearing. The particularity of the proposed PCS
is that the conventional mechanical differential is replaced by an electric differential
assured by two electric motors operating at different speeds. So the vehicule propulsion
system is simplified and its operation and efficiency can be improved, thus leading also
to increase the vehicle range. The use of the symmetrical optimum controllers (SOcontrollers)
shows that the vehicle speed control robustness against the unbalanced
induction motor situation is more improved, especially when an over heating affects
one of both PCS motors. This results is highlighted by the simulation test when vehicle
is conducted to assure a particular trajectory tracking with the specified maneuvers.
Keywords: Electric vehicle (EV), Electric differential (ED), Propulsion control
system (PCS), Symmetrical optimum (SO), Induction motor (IM). Year: 2007 | Tome: 52 | Issue: 4 | Pp.: 475-488
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