AC “Back to Back” Switching Device in Industrial Application

Roberto Faranda, Hossein Hafezi, Kishore Akkala and Massimo Lazzaroni
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Roberto Faranda: Department of Energy, Politecnico di Milano, 20156 Milan, Italy
Hossein Hafezi: School of Technology and Innovations, Electrical Engineering, University of Vaasa, 65200 Vaasa, Finland
Kishore Akkala: Department of Energy, Politecnico di Milano, 20156 Milan, Italy
Massimo Lazzaroni: Dipartimento di Fisica, Università degli Studi di Milano, 20133 Milan, Italy

Energies, 2020, vol. 13, issue 14, 1-20

Abstract: In industrial applications, among several varieties of semiconductor devices available, a silicon-controlled rectifier (SCR) is often used in managing and protecting various systems with different applications. Hence, it is of the utmost importance to design a control system which can operate over a range of electrical loads without any modifications in its hardware and/or software. This paper analyzes and investigates in detail the power circuit effects on conduction delay and SCR functioning. Moreover, two different commonly used driving systems for SCR application have been introduced, discussed, and evaluated. Concerning driving systems, here, three aspects have paramount importance and are consequently taken into consideration, namely the driver system losses, the conduction delay, and in particular, some power quality indices. The conduction delay is a parameter of great importance, as being able to control and reduce it to the minimum allowed by the application can bring significant practical advantages (both in terms of application and economic terms, as better summarized in the article). Theoretical analysis has been performed, followed and verified by simulation studies and, for some cases, laboratory experimental test results are presented which provide credibility to the study.

Keywords: back to back; electromagnetic compatibility (EMC); inductance; industrial automation; measurement; power converters; power quality; silicon-controlled rectifier (SCR) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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