This paper presents a new switched filter scheme and coordinated control strategy for a permanent magnet DC (PMDC) electric vehicle (EV) with an energy recovery free- wheeling scheme. The integrated DC drive scheme is fully stabilized using a FACTS-based efficient switched filter compensator (ESFC) that ensures a fully stabilized VD Bus voltage with reduced inrush current conditions under source and load excursions. The Lithium-ion battery is utilized efficiently using the error-driven multi-loop control strategy. The EV drive scheme is validated using a tri-loop weighted modified proportional integral derivative (WMPID) controller to control the DC/DC converter and the efficient recovery switched filter scheme. The paper presents the validation of the multi-loop WMPID controller for the Lithium-ion battery scheme for four-wheel DC drive using PMDC motors. The tri-loop dynamic error regulator is used to regulate the motor inrush current and prevent overload conditions, in addition to speed dynamic reference tracking. A four-quadratic DC/DC converter is employed to control the transient energy exchange from the Lithium-ion battery to the PMDC motor load. The second controller is a DC voltage dynamic tracking controller using the FACTS-based ESFC. The Lithium- ion battery, DC/DC converter, PMDC motor, and controller loops are fully modelled using the MATLAB/Simulink/Sim-powerSystemtoolbox environment.

Full text: IJEIR_1014_Final.pdf