Experimental Research on FPGA Based Novel Control for Matrix Converter Fed Induction Motor Drive

Abstract

Induction motor drives are used in industrial and process applications which require newlinehigh performances. It is desired in high-performance drive systems, that the speed of newlinemotor should closely follow the reference trajectory regardless of any load newlinedisturbances within limits, parameter variations and model uncertainties. In most of newlinethe industrial applications hard acceleration, deceleration, the inability to vary the newlinespeed and torque causes a serious problem. However, in some applications there are newlinerequirement of constant speed. Induction motor drives provide the solution of these newlineproblems by various types of control strategy using different controlling parameters newlinewith modifying the voltage and frequency of the AC supply. In induction motor the newlinehigh dynamic performance can be obtained similar to dc motors, with the recent newlineadvances in power semiconductors and their switching techniques, integrated circuits like FPGAs, microcontrollers and DSPs; and development in control strategies.This work mainly focuses on the development of fuzzy logic based DTC controlled newlinematrix converter fed induction motor drive using FPGA. Space vector PWM newlineswitched Matrix converter along with fuzzy logic based DTC control provides the newlinebasic platform to accomplish the research objectives in both hardware and software newlineaspects. The torque and flux of the induction motors can be controlled independently newlineusing vector control. The use of matrix converters yields the advantage of compact newlinesize, less weight, almost sinusoidal input output waveforms and lack of energy newlinestorage device over the conventional converter. It is possible to achieve the newlinecombined advantages of direct torque control and matrix converter using DTC based newlinematrix converter fed induction motor drive. Contd....