Fast two-stage charge equaliser based on state-of-charge (SOC) balancing for series-connected supercapacitors
New energy storage vehicles which use supercapacitors (SCs) as the unique source of traction power are developing rapidly recently. To satisfy the operating voltage requirement of energy storage vehicle, hundreds of SCs are needed to be connected in series. In this case, there is a voltage imbalance...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-02-01
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| Series: | The Journal of Engineering |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8565 |
| _version_ | 1819176451917742080 |
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| author | Cheng Luo Jinbo Zhao Siyuan Ma Ming Zha Qiaopo Xiong Zhiqing Luo Jie He Miao Yang Gen Long Jianfeng Liu Jiayi Bao |
| author_facet | Cheng Luo Jinbo Zhao Siyuan Ma Ming Zha Qiaopo Xiong Zhiqing Luo Jie He Miao Yang Gen Long Jianfeng Liu Jiayi Bao |
| author_sort | Cheng Luo |
| collection | DOAJ |
| description | New energy storage vehicles which use supercapacitors (SCs) as the unique source of traction power are developing rapidly recently. To satisfy the operating voltage requirement of energy storage vehicle, hundreds of SCs are needed to be connected in series. In this case, there is a voltage imbalance between the energy storage cells during rapid charging, resulting in reduced energy efficiency and service life of the energy storage device. A layered equalisation scheme is proposed to solve the problem of voltage imbalance. A single-input multiple-output synchronous rectification equalising circuit is proposed to ensure voltage consistency of series supercapacitor monomer in bottom module. The proposed circuit resolves the existing slow balancing speed and low-voltage balancing precision problems in the current supercapacitor equalising circuits. Meanwhile, an equalisation strategy based on module SOC is adopted to solve voltage imbalance problem of the upper supercapacitor module. The results of MATLAB/Saber co-simulation and experiment demonstrate that the layered equalisation system achieves the target of fast equilibrium and high precision balance. |
| first_indexed | 2024-12-22T21:10:59Z |
| format | Article |
| id | doaj.art-019483345f5641fea8a738be562bf9f4 |
| institution | Directory Open Access Journal |
| issn | 2051-3305 |
| language | English |
| last_indexed | 2024-12-22T21:10:59Z |
| publishDate | 2019-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Journal of Engineering |
| spelling | doaj.art-019483345f5641fea8a738be562bf9f42022-12-21T18:12:31ZengWileyThe Journal of Engineering2051-33052019-02-0110.1049/joe.2018.8565JOE.2018.8565Fast two-stage charge equaliser based on state-of-charge (SOC) balancing for series-connected supercapacitorsCheng Luo0Jinbo Zhao1Siyuan Ma2Ming Zha3Qiaopo Xiong4Zhiqing Luo5Jie He6Miao Yang7Gen Long8Jianfeng Liu9Jiayi Bao10Wuhan Maritime Communication Research InstitutionWuhan Maritime Communication Research InstitutionWuhan Maritime Communication Research InstitutionWuhan Maritime Communication Research InstitutionWuhan Maritime Communication Research InstitutionWuhan Maritime Communication Research InstitutionWuhan Maritime Communication Research InstitutionWuhan Maritime Communication Research InstitutionWuhan Maritime Communication Research InstitutionCentral South UniversityCentral South UniversityNew energy storage vehicles which use supercapacitors (SCs) as the unique source of traction power are developing rapidly recently. To satisfy the operating voltage requirement of energy storage vehicle, hundreds of SCs are needed to be connected in series. In this case, there is a voltage imbalance between the energy storage cells during rapid charging, resulting in reduced energy efficiency and service life of the energy storage device. A layered equalisation scheme is proposed to solve the problem of voltage imbalance. A single-input multiple-output synchronous rectification equalising circuit is proposed to ensure voltage consistency of series supercapacitor monomer in bottom module. The proposed circuit resolves the existing slow balancing speed and low-voltage balancing precision problems in the current supercapacitor equalising circuits. Meanwhile, an equalisation strategy based on module SOC is adopted to solve voltage imbalance problem of the upper supercapacitor module. The results of MATLAB/Saber co-simulation and experiment demonstrate that the layered equalisation system achieves the target of fast equilibrium and high precision balance.https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8565rectificationsupercapacitorsenergy storagetraction power suppliesfast two-stage charge equaliserseries-connected supercapacitorstraction poweroperating voltage requirementenergy storage cellsreduced energy efficiencyservice lifeenergy storage devicelayered equalisation schememultiple-output synchronous rectification equalising circuitvoltage consistencyseries supercapacitor monomerlow-voltage balancing precision problemscurrent supercapacitor equalising circuitsequalisation strategymodule SOCvoltage imbalance problemupper supercapacitor modulelayered equalisation systemhigh precision balancestate-of-charge balancingenergy storage vehiclesslow balancing speed |
| spellingShingle | Cheng Luo Jinbo Zhao Siyuan Ma Ming Zha Qiaopo Xiong Zhiqing Luo Jie He Miao Yang Gen Long Jianfeng Liu Jiayi Bao Fast two-stage charge equaliser based on state-of-charge (SOC) balancing for series-connected supercapacitors The Journal of Engineering rectification supercapacitors energy storage traction power supplies fast two-stage charge equaliser series-connected supercapacitors traction power operating voltage requirement energy storage cells reduced energy efficiency service life energy storage device layered equalisation scheme multiple-output synchronous rectification equalising circuit voltage consistency series supercapacitor monomer low-voltage balancing precision problems current supercapacitor equalising circuits equalisation strategy module SOC voltage imbalance problem upper supercapacitor module layered equalisation system high precision balance state-of-charge balancing energy storage vehicles slow balancing speed |
| title | Fast two-stage charge equaliser based on state-of-charge (SOC) balancing for series-connected supercapacitors |
| title_full | Fast two-stage charge equaliser based on state-of-charge (SOC) balancing for series-connected supercapacitors |
| title_fullStr | Fast two-stage charge equaliser based on state-of-charge (SOC) balancing for series-connected supercapacitors |
| title_full_unstemmed | Fast two-stage charge equaliser based on state-of-charge (SOC) balancing for series-connected supercapacitors |
| title_short | Fast two-stage charge equaliser based on state-of-charge (SOC) balancing for series-connected supercapacitors |
| title_sort | fast two stage charge equaliser based on state of charge soc balancing for series connected supercapacitors |
| topic | rectification supercapacitors energy storage traction power supplies fast two-stage charge equaliser series-connected supercapacitors traction power operating voltage requirement energy storage cells reduced energy efficiency service life energy storage device layered equalisation scheme multiple-output synchronous rectification equalising circuit voltage consistency series supercapacitor monomer low-voltage balancing precision problems current supercapacitor equalising circuits equalisation strategy module SOC voltage imbalance problem upper supercapacitor module layered equalisation system high precision balance state-of-charge balancing energy storage vehicles slow balancing speed |
| url | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8565 |
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