Peculiarities of Novel Generation of Hybrid Traction Systems for Electrical Vehicles

Abstract

Abstract.The prospects for the use of multiphase (i.e. having the number of phases more than four) asynchronous linear and non-linear drives in the field of vehicles were presented and described in a number of papers. However the increase of the phase number of asynchronous electric drive system allows not only to improve a number of its technical-and-economic characteristics, but also to create the hybrid traction drives according to scheme "AC Dieselgenerator -Commutator -AC induction motor(s)" which will differ fundamentally from the existing ones, and have more simple design and less energy losses (in comparison with analogous existing hybrid drives). These AC hybrid traction drives of novel type are based on the use of the multiphase Diesel generators and non-traditional controlled multiphase induction motors.

Novel Types of AC Motors and Drives for Electrical and Hybrid Vehicles

“…The various versions of the E-shaped rotor design of such induction motor can be used [20][21][22]. For example, this rotor can be laminated [28] (Figure 12) or may have solid ferromagnetic body [27] with circular or U-shaped axial-andradial slots ( Figure 13) made on the rotor surface according [21] for the decrease of the electrical losses in the rotor circuit.…”

“…having the number m of phases more than four) AC generators (for example, Diesel generators) and non-traditional controlled multiphase induction motors [21][22][23][24][25].…”

Novel Type of EV Hybrid Traction Drives

“…The operating frequency of such commutator is much less than the operating frequency of above mentioned inverter IGBTs. Owing to this the energy losses are much less and the motor control process is significantly simpler in the multiphase hybrid traction drive of novel generation (in comparison with the analogous existing hybrid drives) [1].…”

“…The creation of such novel hybrid traction systems is possible on the base of multiphase (i.e. having the number m of phases more than four) AC generators (for example, Diesel generators) and non-traditional controlled multiphase induction motors [1].…”