Mitigation of Capacitor-Voltage Fluctuation in a Modular Multilevel Triple-Star Bridge-Cell (TSBC) Converter for Medium-Voltage Motor Drives
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- Kawamura Wataru
- Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
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- Chiba Yuto
- Development Division, Komatsu Ltd.
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- Akagi Hirofumi
- Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
Bibliographic Information
- Other Title
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- 高圧電動機駆動用モジュラー・マルチレベルTSBCコンバータのコンデンサ電圧脈動抑制
- コウアツ デンドウキ クドウヨウ モジュラー ・ マルチレベル TSBC コンバータ ノ コンデンサ デンアツ ミャクドウ ヨクセイ
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Abstract
<p>This paper provides a theoretical and experimental discussion on a modular multilevel triple-star bridge-cell (TSBC) converter with focus on mitigating the capacitor-voltage fluctuation contained in each bridge cell. This paper assumes that the TSBC converter drives an interior permanent magnet synchronous motor rated at 75Hz loaded at the rated torque. A new control method proposed in this paper is characterized by properly superimposing both common-mode voltage and circulating currents in the whole speed range from 0 to 75Hz. Moreover, this paper optimizes the amplitude and frequency of the superimposed common-mode voltage with the help of theoretical analysis, thus resulting in minimizing the voltage fluctuation. This optimized control method can reduce both the voltage fluctuation and the cluster-current amplitude to values below those of existing methods. Experimental waveforms obtained from a three-phase downscaled model verify good start-up performance from a standstill to the rated speed.</p>
Journal
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- IEEJ Transactions on Industry Applications
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IEEJ Transactions on Industry Applications 136 (12), 1015-1024, 2016
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
- 1390282679634078080
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- NII Article ID
- 130005171465
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- NII Book ID
- AN10012320
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- ISSN
- 13488163
- 09136339
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- NDL BIB ID
- 027785474
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed