Decentralized Control Method of ISOP Converter for Input Voltage Sharing and Output Current Sharing in Current Control Loop
Input-Series-Output-Parallel (ISOP) converters, a kind of modular converter, are used in high-input voltage and high-output current applications. In ISOP converters, Input Voltage Sharing (IVS) and Output Current Sharing (OCS) should be implemented for stable operation. In order to solve this proble...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/5/1114 |
| _version_ | 1798041860831182848 |
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| author | Sung-Hun Kim Bum-Jun Kim Jung-Min Park Chung-Yuen Won |
| author_facet | Sung-Hun Kim Bum-Jun Kim Jung-Min Park Chung-Yuen Won |
| author_sort | Sung-Hun Kim |
| collection | DOAJ |
| description | Input-Series-Output-Parallel (ISOP) converters, a kind of modular converter, are used in high-input voltage and high-output current applications. In ISOP converters, Input Voltage Sharing (IVS) and Output Current Sharing (OCS) should be implemented for stable operation. In order to solve this problem, this paper proposes a decentralized control method. In the proposed control, output current reference is changed according to the decentralized control characteristic in individual current control loops. In this way, the proposed control method is able to implement IVS and OCS without communication. Also, this method can be easily used in current control loops and has high reliability compared to conventional control methods that require communication. In this paper, the operation principle is described to elucidate the proposed control and a small signal model of an ISOP converter is also implemented. Based on the small signal model, IVS stability analysis is performed using pole-zero maps with varying coefficients and control gains. In addition, the current control loop is designed in a stable region. In order to demonstrate the proposed control method, a prototype ISOP converter is configured using full-bridge converters. The performance of IVS and OCS in an ISOP converter is verified by experimental result. |
| first_indexed | 2024-04-11T22:27:28Z |
| format | Article |
| id | doaj.art-79941d7e2e0d4a70bcf6ee867bf3303d |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:27:28Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-79941d7e2e0d4a70bcf6ee867bf3303d2022-12-22T03:59:36ZengMDPI AGEnergies1996-10732020-03-01135111410.3390/en13051114en13051114Decentralized Control Method of ISOP Converter for Input Voltage Sharing and Output Current Sharing in Current Control LoopSung-Hun Kim0Bum-Jun Kim1Jung-Min Park2Chung-Yuen Won3Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, KoreaInput-Series-Output-Parallel (ISOP) converters, a kind of modular converter, are used in high-input voltage and high-output current applications. In ISOP converters, Input Voltage Sharing (IVS) and Output Current Sharing (OCS) should be implemented for stable operation. In order to solve this problem, this paper proposes a decentralized control method. In the proposed control, output current reference is changed according to the decentralized control characteristic in individual current control loops. In this way, the proposed control method is able to implement IVS and OCS without communication. Also, this method can be easily used in current control loops and has high reliability compared to conventional control methods that require communication. In this paper, the operation principle is described to elucidate the proposed control and a small signal model of an ISOP converter is also implemented. Based on the small signal model, IVS stability analysis is performed using pole-zero maps with varying coefficients and control gains. In addition, the current control loop is designed in a stable region. In order to demonstrate the proposed control method, a prototype ISOP converter is configured using full-bridge converters. The performance of IVS and OCS in an ISOP converter is verified by experimental result.https://www.mdpi.com/1996-1073/13/5/1114input-series-output-parallel converterinput voltage sharingoutput current sharingdecentralized control |
| spellingShingle | Sung-Hun Kim Bum-Jun Kim Jung-Min Park Chung-Yuen Won Decentralized Control Method of ISOP Converter for Input Voltage Sharing and Output Current Sharing in Current Control Loop Energies input-series-output-parallel converter input voltage sharing output current sharing decentralized control |
| title | Decentralized Control Method of ISOP Converter for Input Voltage Sharing and Output Current Sharing in Current Control Loop |
| title_full | Decentralized Control Method of ISOP Converter for Input Voltage Sharing and Output Current Sharing in Current Control Loop |
| title_fullStr | Decentralized Control Method of ISOP Converter for Input Voltage Sharing and Output Current Sharing in Current Control Loop |
| title_full_unstemmed | Decentralized Control Method of ISOP Converter for Input Voltage Sharing and Output Current Sharing in Current Control Loop |
| title_short | Decentralized Control Method of ISOP Converter for Input Voltage Sharing and Output Current Sharing in Current Control Loop |
| title_sort | decentralized control method of isop converter for input voltage sharing and output current sharing in current control loop |
| topic | input-series-output-parallel converter input voltage sharing output current sharing decentralized control |
| url | https://www.mdpi.com/1996-1073/13/5/1114 |
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