Modelling and Simulation of a Hybrid Vehicle Using Direct Torque Control of Induction Motor

Abstract

The authors develop and present a new model of a hybrid vehicle and control strategy. The hybrid vehicle is a general class of vehicles in which the prime power and the driveline are decoupled. The configuration considered in this paper consists of a diesel engine driving a permanent magnet generator that supplies rectified power to a DC link, which in turn supplies power through an inverter to an induction motor for traction. The control system proposed is hierarchical with controllers at the component, subsystem, and system level. Direct torque control (DTC) algorithm is applied to control the induction motor. The subsystem controllers consist of feedback control loops encompassing sliding mode, bang-bang, and conventional control laws. At the system level, a logic controller balances source and loads on the system bus. All models and controllers are simulated using MATLAB and SIMULINK computer program. The performance and scalability of each subsystem controller is demonstrated in stand-alone computer simulations. The modelling and control strategy proposed in this paper provides a robust, scalable system model for simulating the effects of standard driving cycles on the power system of a given vehicle configuration over long time scales.

Key Words:

• Hybrid vehicle
• induction motor
• direct torque control
• vehicle dynamics
• FUDS data

Additional information

Notes on contributors

M. Vasudevan

M. Vasudevan received his B.E. degree in 1996 and M.E. degree in 1998 from Annamalai University and Bharathidasan University respectively, both in Electrical Engineering. At present, he is a senior manager in the Department of Research and Development in Vestas RRB India Ltd, a wind turbine manufacturing firm in India and working with different ratings of wind electric generators and their controllers. He is the responsible team leader to develop various control algorithms and modules for the controllers. He is pursuing Ph.D. in Anna University, India. He published many papers in International Journals and Conference Proceedings. His research interests include Power Electronics, DSP based induction motor and switched reluctance motor drive, series configured hybrid vehicles and modelling and simulation of adaptive control systems.

R. Arumugam

R. Arumugam received his B.E. and M.Sc. (Engg) degrees in 1969 and 1971, respectively, from Madras University and his Ph.D. in 1987 from Concordia University, Canada. At present he is professor and head of the Electrical and Electronics Engineering Department, Anna University, India. He has received many research paper awards. His interests include computer-aided design of electrical machines, power electronics, AC motor drives, motor controls, power-factor correction, and magnetic design.

S. Paramasivam

S. Paramasivam received his B.E. degree from GCT, Coimbatore, in 1995 and the M.E. degree from P.S.G. College of Technology, Coimbatore, in 1999, both in Electrical Engineering. He received his Ph.D. from college of Engineering, Guindy, Anna University, India in 2006. At present, he is working in ESAB group, India as a R&D head for equipments and cutting systems. His interests include power electronics, AC motor drives, DSP and FPGA-based motor controls, power-factor correction, and magnetic design and controller design for wind energy conversion systems.