<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Generally in under-graduate studies, magnetizing inrush current (MIC) is discussed theoretically without giving much practical exposure. This paper presents the development of a low cost experimental set-up using a digital controller to study the MIC and the different parameters which can affect the same. This also helps to show how the inrush current can be minimized. This set-up also provides a hands-on experience of MIC and its control in under-graduate study, which can help an upcoming practitioner in industry as well as in further research. This paper presents a brief description of MIC, followed by a short analysis. Here, a pair of anti-parallel thyristors are connected in series with the primary winding of a single-phase power transformer. The turningon instant of this switch, with respect to the zero-crossing instant of the input supply voltage, may be adjusted through a firmware, in a PIC18F4620 from Microchip Technology microcontroller development board from Microchip Technology to control the transformer energisation instant. The firmware is developed in MPLABX-IDE from Microchip Technology, and the scheme is verified via simulations in Proteus simulation software. A suitable circuit to support the microcontroller development board to achieve the above function is designed and fabricated.</p>
</abstract>

Generally in under-graduate studies, magnetizing inrush current (MIC) is discussed theoretically without giving much practical exposure. This paper presents the development of a low cost experimental set-up using a digital controller to study the MIC and the different parameters which can affect the same. This also helps to show how the inrush current can be minimized. This set-up also provides a hands-on experience of MIC and its control in under-graduate study, which can help an upcoming practitioner in industry as well as in further research. This paper presents a brief description of MIC, followed by a short analysis. Here, a pair of anti-parallel thyristors are connected in series with the primary winding of a single-phase power transformer. The turningon instant of this switch, with respect to the zero-crossing instant of the input supply voltage, may be adjusted through a firmware, in a PIC18F4620 from Microchip Technology microcontroller development board from Microchip Technology to control the transformer energisation instant. The firmware is developed in MPLABX-IDE from Microchip Technology, and the scheme is verified via simulations in Proteus simulation software. A suitable circuit to support the microcontroller development board to achieve the above function is designed and fabricated.

An Experimental Set-up Involving Low-cost Digital Controller to Study the Magnetizing Inrush Current in a Transformer using Point-on-Wave Switching Technique

Power Electronics and Drives

This work is licensed under the Creative Commons Attribution 4.0 International License.

Generally in under-graduate studies, magnetizing inrush current (MIC) is discussed theoretically without giving much practical exposure. This paper presents...

An Experimental Set-up Involving Low-cost Digital Controller to Study the Magnetizing Inrush Current in a Transformer using Point-on-Wave Switching Technique

Published Online: May 10, 2024

Page range: 292 - 316

Received: Dec 31, 2023

Accepted: Apr 02, 2024

DOI: https://doi.org/10.2478/pead-2024-0019

Keywords
microcontroller, point on wave switching technique, zero-crossing detector, thyristor, transformer magnetizing current

© 2024 Ananya Nayak et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

An Experimental Set-up Involving Low-cost Digital Controller to Study the Magnetizing Inrush Current in a Transformer using Point-on-Wave Switching Technique

Published Online: May 10, 2024

Page range: 292 - 316

Received: Dec 31, 2023

Accepted: Apr 02, 2024

DOI: https://doi.org/10.2478/pead-2024-0019

Keywordsmicrocontroller, point on wave switching technique, zero-crossing detector, thyristor, transformer magnetizing current

© 2024 Ananya Nayak et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
microcontroller, point on wave switching technique, zero-crossing detector, thyristor, transformer magnetizing current