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V/F Method to Control the Speed of aThree Phase Induction Motor Using Micro Compiler

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  • Anis Ahmad

    (Department of Electrical Engineering, Lahore Leads University, Lahore)

Abstract

AC motors with induction drives are frequently working in industrial settings. The foundation of the sector is electric drive. Modern manufacturing is centered on the reliable induction motor. Due to their widespread use in various appliances as well as industrial automation and control, induction motors are frequently referred to as the workhorse of the industry. Although induction motors are constant speed, we often need variable speed for various industrial operations. For each wash cycle, a washing machine needs to run at a different speed. Mechanical gears were working in the past to achieve variable speed. However, modern power electronics and control systems have made such strides that we are able to replace the antiquated gear systems with electronic component-based motor control. Such an application of electronics enhances the motor's dynamic and steady state properties in addition to controlling its speed. Although there are other ways to regulate the speed of motors using variable/adjustable speed drives (VSD/ASD), we will only examine the V/F approach, which is a scalar form of speed control in this article. The speed management of induction motors is now simpler because to advancements in semiconductor technology and the usage of microcontrollers. The frequency and supply voltage affect the speed of an induction motor, so in this case we will adjust the frequency of the supply to alter the speed. In this system, the user-defined speed of the induction motor can be changed. By adjusting the IGBTs' firing angles, the discrepancy between the actual speed and the reference speed is reduced. The system is put to the test, and experimental findings for variable speed under varied load situations are recognized. In this process, the single-phase ac voltage (220V AC) is first converted into dc voltage (440V DC). This dc voltage is applied to an inverter, which again transforms it into three phase ac voltage, but its use allows us to adjust both the voltage level and frequency.

Suggested Citation

  • Anis Ahmad, 2023. "V/F Method to Control the Speed of aThree Phase Induction Motor Using Micro Compiler," International Journal of Innovations in Science & Technology, 50sea, vol. 5(2), pages 111-120, April.
    • Handle: RePEc:abq:ijist1:v:5:y:2023:i:2:p:111-120
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    References listed on IDEAS

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    1. Ruben Rafael Boros & István Bodnár, 2022. "Grid and PV Fed Uninterruptible Induction Motor Drive Implementation and Measurements," Energies, MDPI, vol. 15(3), pages 1-18, January.
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