Three-phase multilevel-voltage source converters with low switching frequencies and less distorted input voltages

Journal Article · · IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/IAS.1993.299001· OSTI ID:6969985

Oguchi, Kuniomi; Maki, Yasuomi; Sunaga, Yoshinori ^[1]

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1. Ibaraki Univ., Hitachi (Japan). Dept. of Electrical and Electronic Engineering

A novel three-phase power converter which is suitable for high-voltage, high-power applications is proposed.d This converter consists of a neutral-point-clamped (NPC) converter with a switching frequency at the power line frequency as the main power circuit, and an additional single-phase converter with a switching frequency at the power line frequency as the main power circuit, and an additional single-phase converter with a switching frequency at triple the power line frequency. This paper describes the operating principle, analysis, and synthesis of the input voltage waveforms in a single- and a double-converter system, as well as experimental results.

• OSTI ID: 6969985
• Journal Information: IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States), Vol. 30:5; ISSN 0093-9994
• Country of Publication: United States
• Language: English

Related Subjects

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SWITCHES
DIRECT ENERGY CONVERTERS
ELECTRICAL EQUIPMENT
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240201* - Power System Networks
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