FPGA-based Implementation of Fuzzy Logic DTC for Induction Motor Drive Fed by Matrix Converter

Abstract

This paper presents the design and implementation of fuzzy logic-based direct torque control (FLDTC) for matrix converter (MC)-fed induction motor drive. Using Direct Torque Control, it is possible to directly control the electromagnetic torque and stator flux of the induction motor by selecting the optimum switching vectors of the matrix converter. The FLDTC reduces the ripple content in electromagnetic torque, improves the stator current and steady state as well as dynamic response of the induction motor. To test the proposed control scheme, the model of the complete drive is developed in MATLAB/SIMULINK environment. The proposed controller is also implemented in real time using Altium nano board 3000 which is mainly based on Xilinx Spartan XC3S1400an-FGG676 Field programmable gate array (FPGA). The simulation and hardware results show the effectiveness of the proposed control scheme. The result demonstrates that the ripple contents in electromagnetic torque are significantly reduced using the proposed fuzzy logic-based controller. The system is stable in steady state as well as in transient conditions within the limits.

KEYWORDS:

• Direct torque control (DTC)
• Fuzzy logic
• Matrix converter

Additional information

Notes on contributors

Raju Kumar Swami

Raju Kumar Swami received the Bachelor of Engineering (Electrical) from College of Technology and Engineering, Udaipur, India, in 2008, MTech from Motilal Nehru National Institute of Technology, Allahabad, India, in 2011. He is currently pursuing PhD from Maharana Pratap University of Agriculture and Technology (MPUAT), Udaipur, India. He has more than seven years of teaching experience. His research interest includes power converters, multilevel inverters and power electronics control of electric machines. Corresponding author. Email: [email protected]

Vinod Kumar

Vinod Kumar received the Bachelor of Engineering (Electrical) from College of Technology and Engineering, Udaipur, India, and he completed his master's degree from VIT Vellore, and he completed his PhD from College of Technology and Engineering, Udaipur, India. He has more than 15 years of teaching experience. He has published many research papers in international/national journals and books. His areas of interest include power electronics, HVDC, advanced electric drives, power converter based wind generation system. Email: [email protected]

R. R. Joshi

R R Joshi completed his MTech from IIT Delhi in control and instrumentation. He obtained his PhD from RGPV Bhopal. He has more than 30 years of teaching experience. He has published many research papers in international/national journals and books. His field of interest include power electronics, neural network, fuzzy logic. Email: [email protected]