Phase-Controlled DC-AC Converter with High-Frequency Switching

Koosuke Harada; Hiroshi Sakamoto; Masahito Shoyama

doi:10.1109/63.17961

Phase-Controlled DC-AC Converter with High-Frequency Switching

Koosuke Harada, Hiroshi Sakamoto, Masahito Shoyama

Applied Energy Engineering

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

Abstract

An analysis of the phase-controlled dc-ac converter is presented. This converter has a pair of switches in each side of the primary and the secondary of the isolation transformer. The voltage conversion ratio is controlled by the phase difference between the two pairs of switches. The averaged equivalent circuit for low frequency is derived. The switching surge during commutation is much reduced by dividing the reactor into two parts. As a result, the transformer is miniaturized by increasing the switching frequency and the reactive energy can be easily recovered to the dc source. This dc-ac converter is especially suitable for small uninterruptible power supply (UPS) systems.

Original language	English
Pages (from-to)	406-411
Number of pages	6
Journal	IEEE Transactions on Power Electronics
Volume	3
Issue number	4
DOIs	https://doi.org/10.1109/63.17961
Publication status	Published - Oct 1988

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

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abstract = "An analysis of the phase-controlled dc-ac converter is presented. This converter has a pair of switches in each side of the primary and the secondary of the isolation transformer. The voltage conversion ratio is controlled by the phase difference between the two pairs of switches. The averaged equivalent circuit for low frequency is derived. The switching surge during commutation is much reduced by dividing the reactor into two parts. As a result, the transformer is miniaturized by increasing the switching frequency and the reactive energy can be easily recovered to the dc source. This dc-ac converter is especially suitable for small uninterruptible power supply (UPS) systems.",

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N2 - An analysis of the phase-controlled dc-ac converter is presented. This converter has a pair of switches in each side of the primary and the secondary of the isolation transformer. The voltage conversion ratio is controlled by the phase difference between the two pairs of switches. The averaged equivalent circuit for low frequency is derived. The switching surge during commutation is much reduced by dividing the reactor into two parts. As a result, the transformer is miniaturized by increasing the switching frequency and the reactive energy can be easily recovered to the dc source. This dc-ac converter is especially suitable for small uninterruptible power supply (UPS) systems.

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