New Modulation Method to Reduce Cell Capacitor Ripple Current in Modular Multilevel Cascade Converters and its Application to Active Power Filters
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- Arai Takuro
- Toshiba Infrastructure Systems and Solutions Corporation
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- Mochikawa Hiroshi
- Toshiba Infrastructure Systems and Solutions Corporation
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- Sano Kenichiro
- Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
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- Fujita Hideaki
- Department of Electrical and Electronic Engineering, Tokyo Institute of Technology
Bibliographic Information
- Other Title
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- MMCのセルコンデンサ電流を低減できる変調法の提案とアクティブフィルタへの応用
Abstract
<p>This paper proposes a new modulation method for modular multilevel cascade converter-based active power filters (MMC-APFs). The proposed modulation method uses the same pulse width modulation (PWM) controller as a traditional bipolar modulation method, and the generated PWM signals are interchanged among the bridge cells. This method makes it possible to shift the carrier phase angle between two switching legs in one cell, reducing the ripple current through the cell capacitor without increasing the number of PWM channels. This is important to reduce the cost of the control circuit, especially in low-voltage applications of MMCs. An experimental circuit of a 3.3kVA MMC-APF demonstrates a 20% reduction in the ripple current and a 38% reduction in the power loss in the cell capacitor.</p>
Journal
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- IEEJ Transactions on Industry Applications
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IEEJ Transactions on Industry Applications 143 (8), 590-599, 2023-08-01
The Institute of Electrical Engineers of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390859912502354560
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- ISSN
- 13488163
- 09136339
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed