A Technique of Parallel Connections of Pulsewidth Modulated NPC Inverters by Using Current Sharing Reactors.
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- Ueda Fukashi
- Chubu University
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- Asao Masahiro
- Meidensha Corporation
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- Matsui Keiju
- Chubu University
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- Tsuboi Kazuo
- Chubu University
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- Kobayashi Tadashi
- Nitto Electric Works.
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- Watanabe Makoto
- Chubu Power Electric Co. Inc.
Bibliographic Information
- Other Title
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- NPC‐PWMインバータにおける並列接続の検討
- NPC PWM インバータ ニ オケル ヘイレツ セツゾク ノ ケントウ
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Abstract
The neutral point clamped (NPC) PWM inverters has many advantages such as its ability to operate the motor with nearly sinusoidal current waveforms. For this reason, in larger capacity inverter systems, NPC PWM inverters using the GTOs and the like have been also put into practical use, because of great advantages to large capacity ac motor drives, such as lower ripple currents and higher output voltages. With the spread of applications, still larger capacity inverters are also expected. However, since the capacities of such switching devices are insufficient, a certain technique and controlling method are proposed for the parallel connections of NPC inverters. The output voltage waveforms of the proposed inverter have certain voltage levels, thus it is anticipated that it will be difficult to analyze the output harmonics. For such waveforms of output voltage and current sharing reactor, frequency analysis approach is described, whose results are verified by experiments.
Journal
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- IEEJ Transactions on Industry Applications
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IEEJ Transactions on Industry Applications 115 (7), 906-915, 1995
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390001204655817856
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- NII Article ID
- 10000018519
- 10001688290
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- NII Book ID
- AN10012320
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- ISSN
- 13488163
- 09136339
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- NDL BIB ID
- 3613246
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed