A Switching Algorithm for AC-AC Converter Based Voltage Compensator without Using Snubber Circuit

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FARHADI KANGARLU M.; Galvani S.

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Journal Paper

Paper Information

Journal: TABRIZ JOURNAL OF ELECTRICAL ENGINEERING Year:2021 | Volume:50 | Issue:4 (94) Page(s): 1745-1756

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Title

A Switching Algorithm for AC-AC Converter Based Voltage Compensator without Using Snubber Circuit

Author(s)

FARHADI KANGARLU M. | Galvani S. | Issue Writer Certificate

Keywords

voltage compensator

voltage sag

snubber circuit

AC-AC converter

switching algorithm

Abstract

Series voltage compensation is used in low-voltage distribution system to compensate for voltage variations. The compensators are indeed series-connected converters which inject the missing voltage in series to the grid in case of voltage sag. In this paper, a switching algorithm for AC-AC converter based voltage compensator is proposed. As the bidirectional AC power electronic switches are used in the AC-AC converters, considering the switching dead-time, snubber circuits should be used in parallel with the switches to provide a current path during the dead-time and hence to reduce the dv/dt stresses on the switches. The snubber circuits increase the circuit elements and have their own power losses. Using the proposed switching algorithm, the snubber circuits could be eliminated since a current path is always (including the dead-time) guaranteed. In order to evaluate the proposed algorithm, the simulation studies and discussions are presented.

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APA: Copy

FARHADI KANGARLU, M., & Galvani, S.. (2021). A Switching Algorithm for AC-AC Converter Based Voltage Compensator without Using Snubber Circuit. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, 50(4 (94) ), 1745-1756. SID. https://sid.ir/paper/966518/en

Vancouver: Copy

FARHADI KANGARLU M., Galvani S.. A Switching Algorithm for AC-AC Converter Based Voltage Compensator without Using Snubber Circuit. TABRIZ JOURNAL OF ELECTRICAL ENGINEERING[Internet]. 2021;50(4 (94) ):1745-1756. Available from: https://sid.ir/paper/966518/en

IEEE: Copy

M. FARHADI KANGARLU, and S. Galvani, “A Switching Algorithm for AC-AC Converter Based Voltage Compensator without Using Snubber Circuit,” TABRIZ JOURNAL OF ELECTRICAL ENGINEERING, vol. 50, no. 4 (94) , pp. 1745–1756, 2021, [Online]. Available: https://sid.ir/paper/966518/en

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