Chinese Journal of Electrical Engineering ›› 2019, Vol. 5 ›› Issue (2): 43-55.

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Effect of Center Voltage Vectors (CVVs) of Three-level Space Plane on the Performance of Dual Inverter Fed Open End Winding Induction Motor Drive

M. Harsha Vardhan Reddy*, K. Sri Gowri, T. Bramhananda Reddy, G. Kishor   

  1. Department of EEE, G. Pulla Reddy Engineering College, Kurnool, AP, India
  • Online:2019-06-20 Published:1900-01-01
  • About author:Dr. M. Harsha Vardhan Reddy received his B.Tech degree from Rajeev Gandhi Memorial College of Engineering and Technology, Nandyal, Andhra Pradesh in 2009. In 2011, he obtained his M.Tech degree in power electronics and drives from Karunya University, Coimbatore and Ph.D from Jawaharlal Nehru Technological University, Hyderabad in 2017. Currently, he is affiliated with G. Pulla Reddy Engineering College (GPREC), Kurnool, as an associate professor. His areas of interests are power electronic control of drives and multilevel inverters.
    Dr. K. Sri Gowri received her B.Tech degree from Sri Venkateswara University college of Engineering Tirupati, India in 1996; M.Tech degree in power electronics from Jawaharlal Nehru Technological University, Kakinada, India in 2011. She is presently working as a professor in Department of EEE, G. Pulla Reddy Engineering College (GPREC), Kurnool, India. She had published 34 research papers in national and international conferences and journals. Her current research interest includes power electronic converters, PWM techniques, AC drives and control.
    Dr. T. Bramhananda Reddy graduated from Sri Krishna Devaraya University, Anantapur in 2001. He received his M.E degree from Osmania University, Hyderabad, India in 2003 and his Ph.D from Jawaharlal Nehru Technological University, Hyderabad (JNTUH) in 2009. Dr. Brahmanada is a professor at GPREC and is the head of the Electrical and Electronics Engineering Department of the same college. He has presented more than 100 research papers in various national and international conferences and journals. His research areas include PWM techniques, DC to AC converters, and control of electrical drives.
    Dr. G. Kishor received his B.E degree from Bangalore University in 2001. In 2004, he obtained his M.E degree from Sathyabama University and Ph.D from Jawaharlal Nehru Technological University, Ananthapuramu in 2016. Currently, he is affiliated with G. Pulla Reddy Engineering College, Kurnool, as an associate professor. His areas of interests are power electronic control of drives and DC-DC converters.
  • Supported by:
    maramreddyharsha@gmail.com

Abstract: Dual inverter fed open end winding induction motor (IM) drive offers many advantages over other multilevel inverter fed IM drives. Pulse width modulation (PWM) techniques are employed for the control of output voltage and frequency. Space vector base PWM techniques are popular among all the PWM techniques. A simplified space vector PWM method with simple and small look-up table approach is presented for dual inverter configuration. Moreover the proposed space vector based PWM technique provides freedom in selecting the center voltage vector (CVV) by which different PWM techniques will be derived. The implementation of all these PWM techniques is generalized by using a constant ao. The derived PWM techniques show superior performance in reducing the zero sequence voltage (ZSV) by maintaining the same quality of output voltage. The performance of all these PWM techniques are evaluated theoretically and verified in real time through dSPACE 1104 control board.

Key words: Center voltage vectors, coupled PWM, decoupled PWM, space vector PWM, zero sequence voltage