| 2025 №01 (05) |
DOI of Article 10.37434/as2025.01.06 |
2025 №01 (07) |
"Avtomatychne Zvaryuvannya" (Automatic Welding), #1, 2024, pp. 40-44
AC power source control unit for electroslag welding and remelting
Yu.M. Lankin, W.F. Semikin, I.Yu. Romanova, Ye.M. Bayshtruk
E.O. Paton Electric Welding Institute of the NAS of Ukraine 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: semikin.kiev@gmail.comA microcontroller control unit for an AC power source with phase-step regulation of the output voltage for electroslag welding and remelting is described, which allows smooth regulation and automatic stabilization of the output voltage under disturbing infl uences. The parameters of the opening current of thyristors for reliable switching of voltage control stages in the automatic mode were determined experimentally. The developed control unit is suitable for upgrading existing power sources with four taps from the primary winding of power transformers. This will improve the quality of products obtained using electroslag technologies. 5 Ref., 8 Fig.
Keywords: phase-step regulation, mains voltage, industrial frequency AC voltage regulator, phase-step regulation algorithm, microcontroller
Received: 17.10.2024
Received in revised form: 13.01.2025
Accepted: 17.02.2025
References
1. Chizhenko, A.I., Kurilo, I.A. (2008) Control of a valve-type AC voltage regulator. Tekh. Elektrodynamika, 6, 36–41 [in Russian].2. Volkov, I.V., Chizhenko, A.I., Kurilo, I.A. (2010) Threephase valve-choke AC voltage converter. Pratsi ІED NANU, Vol. 26, 90–94 [in Russian].
3. Lankin, Yu.M., Semikin, V.F., Bayshtruk, Ye.M., Romanova, I.Yu. (2024) Characteristics of power sources of ESW/ ESM installations with phase-pulse regulation of thyristors. Avtomatych. Zvaryuvannya, 6, 51-57 [in Ukrainian]. https://doi.org/10.37434/as2024.06.08
4. Microchip. TB3138. Zero-Cross Detection Module Technical Brief.
5. Microchip. PIC16F882/883/884/886/887. Data Sheet.
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