INTELLIGENT POWER MODULE CONTROLLED BY  MICROCOMPUTER AND IMPLEMENTED IN AC MOTOR SPEED  REGULATOR

Goce  Stefanov; Vasilija Sarac

doi:10.46763/ETIMA2321022s

Goce Stefanov Faculty of Electrical Engineering, Goce Delcev University, Krste Misirkov 10A, 2000 Stip, North Macedonia
Vasilija Sarac Faculty of Electrical Engineering, Goce Delcev University, Krste Misirkov 10A, 2000 Stip, North Macedonia

DOI: https://doi.org/10.46763/ETIMA2321022s

Abstract

In the paper, a V/f AC motor speed regulator based on an intelligent power module (IPM) and a microcomputer
is designed and practically implemented. The ATmega 328P microcomputer controls the operation of the IPM
TM 35 and generates the SPWM pulses for controlling an asynchronous 3 phase AC motor. The intelligent power
module TM 35 works as a power driver that isolates and transmits the SPWM signals from the microcomputer to
the AC motor. A basic goal in the design of the device is the reduction of the necessary hardware components and
the price, as well as the improvement of the reliability of operation. The control and visualization of the operation
modes of the V/f controller is realized with an LCD display. The operation of the controller at idle and under load
has been tested.

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