Sliding Mode Control of Induction Motor Drive Based on Feedback Linearization

ABSTRACT

In this paper, sliding mode control theory is demonstrated to design and control the rotor speed and rotor flux of the feedback linearized induction motor (IM) drive. Dynamic equations of the IM in stationary reference frame are linearized using feedback linearization control technique. Direct differentiation method is being used for the linearization of dynamic model of IM. First, rotor speed and flux are decoupled through proportional-integral (PI) regulator and the resultant controlled variables are fed to the feedback linearization controller. To improve the dynamic performance of the motor, sliding mode flux and speed controllers are proposed. The model has been simulated using MATLAB/Simulink and validated experimentally using dSpace1104 controller board, inverter, and IM in the laboratory. Results clearly indicate the effectiveness of the proposed controller over PI controllers at different operating conditions such as load disturbance and speed reversal is analysed and compared in real time.

KEYWORDS:

• Feedback linearization
• Field oriented control
• Induction motor
• Lyapunov stability
• Sliding mode control

Additional information

Notes on contributors

Ambrish Devanshu

Ambrish Devanshu was born in Patna, India, in 1989. He received his BTech degree in electrical and electronics engineering from the School of Engineering, Cochin University of Science and Technology, Cochin, Kerala, India in 2011. From September 2011 to June 2014, he served as a Project Engineer in Wipro Technologies, Greater Noida, and India. Thereafter, he has joined as a full-time PhD research scholar and is currently working toward his PhD degree in the Department of Electrical Engineering, Delhi Technological University, Delhi, India. His research areas of interest include electric machine drives and power electronics.

Madhusudan Singh

Madhusudan Singh was born in Ghazipur, India, in 1968. He received the BSc degree in electrical engineering from the Faculty of Technology, Dayalbagh Educational Institute, Dayalbagh Agra, India, in 1990, the ME degree from the University of Allahabad, Allahabad, India, in 1992, and the PhD degree from the Faculty of Technology, University of Delhi, New Delhi, India, in 2006. In 1992, he joined the Department of Electrical Engineering, North Eastern Institute of Science and Technology, Nirjuli, India, as a Lecturer. In June 1996, he joined the Department of Electrical Engineering, Institute of Engineering and Technology Lucknow, Lucknow, India, as a Lecturer. In March 1999, he joined the Department of Electrical Engineering, Delhi College of Engineering (now Delhi Technological University) New Delhi, India, as an Assistant Professor, where he became a Professor of electrical engineering in 2007. His research interests are in the areas of modeling and analysis of electrical machines, voltage control aspects of self-excited induction generators, power electronics, and drives. Dr. Singh is a member of the Institution of Engineers (IE), India, and of the Institution of Electronics and Telecommunication Engineers, New Delhi, India. He is a Life Member of the Indian Society for Technical Education, New Delhi, India. He is also a member of the Institution of Engineering Technology (U.K.). Email: [email protected]

Narendra Kumar

Narendra Kumar has done his BE from IIT-Roorkee in 1985, ME from PEC Chandigarh in 1987 and PhD from Delhi College of Engineering (now known as Delhi Technological University), Delhi in 2003 in electrical engineering. He is currently a Professor with the Department of Electrical Engineering, Delhi Technological University, Delhi, India. He has published 46 research papers in various journals and conferences. He has published two books as International Contributor. He has guided 55 projects to PG students. He is also guiding 6 PhD students and has also guided 55 MTech projects. He is member of two professional societies (member of IEEE and life member of ISTE). His areas of interest include power electronics applications in power systems, instrumentation and control. Email: [email protected]