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This paper presents a new hybrid cascaded H-bridge multilevel inverter (HCMLI) motor drive DTC control scheme for electric vehicles or hybrid electric vehicles where each phase of the inverter can be implemented using only a single DC source. Traditionally, each phase of the inverter require n DC source for 2n + 1 output voltage levels. In this paper, a scheme is proposed that allows the use of a...
Hybrid-excited flux-switching (HEFS) machine is a relatively novel brushless machine having magnets, armature windings and field windings in the stator, as well as a simple and robust rotor. In this paper, the control strategies for the proper injection of field currents are proposed and implemented by a simulated model based on Matlab/Simulink. The predicted performance confirms the excellent flux-regulation...
This paper presents a hybrid cascaded H-bridge multilevel motor drive DTC control scheme for electric (EV) or hybrid electric vehicles (HEV). The control method is based on direct torque control operating principles. The stator voltage vector reference is computed from the stator flux and torque errors imposed by the flux and torque controllers. This voltage reference is then generated using a hybrid...
As a new energy transmission device, dual rotor four-quadrant transmission (4QT) simplifies power-train structure of electrical variable transmission (EVT) and makes internal combustion engine (ICE) operate in high efficiency region. Reduction of fuel consumption and the improvement of vehicle performance are achieved as well. In this paper, different operation modes of EVT are analyzed based on the...
In this paper using Adaptive Backstepping approach an adaptive rotor flux observer which provides rotor speed, stator and rotor resistances estimation simultaneously for induction motor used in series hybrid electric vehicle is proposed. The controller of induction motor (IM) is designed based on input-output feedback linearization technique. Combining this controller with adaptive backstepping observer...
An optimal design and control technology of a wheel motor is proposed for small electric passenger cars. The axial-flux sandwich-type disc motor is designed with a rotor embedded with neodymium-iron-boron (NdFeB) magnets and two plates of stators, and is directly mounted inside the wheel without mechanical transmission and differential gears. Sensitivity analyses are performed to choose critical design...
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