Loss Reduction of Modular Multilevel Converter with Balancing Circuit for Low-Voltage Grid Converter
This study proposes a modular multilevel converter by applying a balancing circuit with a resistor for a low-voltage grid converter. The proposed balancing circuit, which is controlled by the same gate signal as that of the main switch, can reduce the loss of the additional balancing circuit and the...
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| Veröffentlicht in: | Denki Gakkai ronbunshi. D, Sangyō ōyō bumonshi 2021/06/01, Vol.141(6), pp.461-471 |
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| container_end_page | 471 |
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| container_issue | 6 |
| container_start_page | 461 |
| container_title | Denki Gakkai ronbunshi. D, Sangyō ōyō bumonshi |
| container_volume | 141 |
| creator | Arai, Takuro Sekiguchi, Kei Mochikawa, Hiroshi Sano, Kenichiro Fujita, Hideaki |
| description | This study proposes a modular multilevel converter by applying a balancing circuit with a resistor for a low-voltage grid converter. The proposed balancing circuit, which is controlled by the same gate signal as that of the main switch, can reduce the loss of the additional balancing circuit and the current rating of the balance switch without the need for additional the cell capacitors. Only one voltage sensor per converter arm is required to automatically balance the cell capacitor voltages. The experimental results indicate that the cell capacitor voltages are well balanced during a rated operation of 10kW and a high efficiency of up to 99.2% is achieved, which is almost the same as that without a balancing circuit. |
| doi_str_mv | 10.1541/ieejias.141.461 |
| format | Article |
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The proposed balancing circuit, which is controlled by the same gate signal as that of the main switch, can reduce the loss of the additional balancing circuit and the current rating of the balance switch without the need for additional the cell capacitors. Only one voltage sensor per converter arm is required to automatically balance the cell capacitor voltages. The experimental results indicate that the cell capacitor voltages are well balanced during a rated operation of 10kW and a high efficiency of up to 99.2% is achieved, which is almost the same as that without a balancing circuit.</description><identifier>ISSN: 0913-6339</identifier><identifier>ISSN: 2187-1094</identifier><identifier>EISSN: 1348-8163</identifier><identifier>EISSN: 2187-1108</identifier><identifier>DOI: 10.1541/ieejias.141.461</identifier><language>jpn</language><publisher>Tokyo: The Institute of Electrical Engineers of Japan</publisher><subject>balance circuit ; Balancing ; Capacitors ; cell capacitor ; Circuits ; Converters ; Electric potential ; grid-connected converter ; Loss reduction ; MMC ; modular multilevel converter ; Si-MOSFET ; Voltage</subject><ispartof>IEEJ Transactions on Industry Applications, 2021/06/01, Vol.141(6), pp.461-471</ispartof><rights>2021 by the Institute of Electrical Engineers of Japan</rights><rights>Copyright Japan Science and Technology Agency 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Arai, Takuro</creatorcontrib><creatorcontrib>Sekiguchi, Kei</creatorcontrib><creatorcontrib>Mochikawa, Hiroshi</creatorcontrib><creatorcontrib>Sano, Kenichiro</creatorcontrib><creatorcontrib>Fujita, Hideaki</creatorcontrib><title>Loss Reduction of Modular Multilevel Converter with Balancing Circuit for Low-Voltage Grid Converter</title><title>Denki Gakkai ronbunshi. 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| ispartof | IEEJ Transactions on Industry Applications, 2021/06/01, Vol.141(6), pp.461-471 |
| issn | 0913-6339 2187-1094 1348-8163 2187-1108 |
| language | jpn |
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| source | J-STAGE Free; EZB-FREE-00999 freely available EZB journals |
| subjects | balance circuit Balancing Capacitors cell capacitor Circuits Converters Electric potential grid-connected converter Loss reduction MMC modular multilevel converter Si-MOSFET Voltage |
| title | Loss Reduction of Modular Multilevel Converter with Balancing Circuit for Low-Voltage Grid Converter |
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