1. Faculty of Energy and Power Engineering, South Ural State University, Chelyabinsk 454 080, Russia
2. Department of Electronics and Communication Engineering, Panimalar Institute of Technology, 600 123, Chennai, India
3. Department of Electrical and Electronics Engineering, Sri Sairam College of Engineering, 562 106, Bangalore City, India
4. Faculty of Electrical & Computer Engineering, Jimma Institute of Technology, Jimma University, Ethiopia