Abstract
The paper presents the new approach for motor driver constructions and control systems. Authors of the work proposed the device that can control both AC and DC electric motors without any additional hardware modification. In order to meet this goal the universal motor driver has been constructed and some improvements in output waveform modulation system have been introduced. In the paper the three different method of a motor control have been discussed briefly and a hardware setup has been presented. Tests have been carried out for three types of electric motors, i.e. a magnetoelectric DC motor, single-phase and three-phase induction motor. The obtained results in form of output waveforms of current and voltage have been analyzed in terms of harmonic distortion using a popular Fast Fourier Transform FFT and discussed in the paper.
Highlights
The observed trend of mass use of power electronic converters that supply a wide range of electric motors and declining costs of electronic components determine the creation of ever-newer, universal structures of inverters with a wide range of application and high reliability [1]
In the constructed motor driver three different modulation methods used to driving electric motors have been applied
The third modulation method applied in the project is direct current PWM modulation [7]
Summary
The observed trend of mass use of power electronic converters that supply a wide range of electric motors and declining costs of electronic components determine the creation of ever-newer, universal structures of inverters with a wide range of application and high reliability [1]. A huge progress in embedded microcontrollers systems have been done in recent years. It contributes to the development of more and more complex modulation methods that can be applied in modern inverters [2]. In this paper, the Authors propose a design for the construction of a universal low-power inverter dedicated to supply of various types of electrical motors
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