Frequency Division Based Coordinated Control of Three-Port Converter Interfaced Hybrid Energy Storage Systems in Autonomous DC Microgrids
DC microgrids (MGs) feature remarkable advantages of integrating renewable energy sources and loads with DC coupling. In order to improve the operation performance of a dc MG in both steady and transient states, in this paper a hybrid energy storage system (HESS) interfaced by a three-port converter...
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8349946/ |
| _version_ | 1819168471127162880 |
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| author | Panbao Wang Xiaonan Lu Wei Wang Dianguo Xu |
| author_facet | Panbao Wang Xiaonan Lu Wei Wang Dianguo Xu |
| author_sort | Panbao Wang |
| collection | DOAJ |
| description | DC microgrids (MGs) feature remarkable advantages of integrating renewable energy sources and loads with DC coupling. In order to improve the operation performance of a dc MG in both steady and transient states, in this paper a hybrid energy storage system (HESS) interfaced by a three-port converter (TPC) is studied. Particularly, a battery and an ultra-capacitor (UC), which form the HESS, are connected at the source side of the TPC, respectively. Aiming at a phase-shifting controlled full-bridge isolated TPC, in addition to conventional droop control loop, a frequency division-based control method is proposed to achieve rational power sharing between the battery and UC. Due to the characteristics of TPC, virtual inductance and virtual capacitance loops are implemented using the input currents at the battery and UC ports. The frequency division between the battery and UC in the HESS is quantitatively analyzed by using the frequency domain small-signal analysis considering the characteristics of power exchange in the phase-shifting controlled TPC. A simulation model built in MATLAB/Simulink and a prototype comprised of a battery, a UC, a programmable dc load, and auxiliary components are implemented to validate the proposed TPC-interfaced HESS under different operation scenarios. |
| first_indexed | 2024-12-22T19:04:08Z |
| format | Article |
| id | doaj.art-4142d1894af1448e8f9ea9b5bcad2c8c |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-22T19:04:08Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-4142d1894af1448e8f9ea9b5bcad2c8c2022-12-21T18:15:52ZengIEEEIEEE Access2169-35362018-01-016253892539810.1109/ACCESS.2018.28304208349946Frequency Division Based Coordinated Control of Three-Port Converter Interfaced Hybrid Energy Storage Systems in Autonomous DC MicrogridsPanbao Wang0https://orcid.org/0000-0002-0545-1818Xiaonan Lu1Wei Wang2Dianguo Xu3Electrical Engineering Department, Harbin Institute of Technology, Harbin, ChinaEnergy Systems Division, Argonne National Laboratory, Lemont, IL, USAElectrical Engineering Department, Harbin Institute of Technology, Harbin, ChinaElectrical Engineering Department, Harbin Institute of Technology, Harbin, ChinaDC microgrids (MGs) feature remarkable advantages of integrating renewable energy sources and loads with DC coupling. In order to improve the operation performance of a dc MG in both steady and transient states, in this paper a hybrid energy storage system (HESS) interfaced by a three-port converter (TPC) is studied. Particularly, a battery and an ultra-capacitor (UC), which form the HESS, are connected at the source side of the TPC, respectively. Aiming at a phase-shifting controlled full-bridge isolated TPC, in addition to conventional droop control loop, a frequency division-based control method is proposed to achieve rational power sharing between the battery and UC. Due to the characteristics of TPC, virtual inductance and virtual capacitance loops are implemented using the input currents at the battery and UC ports. The frequency division between the battery and UC in the HESS is quantitatively analyzed by using the frequency domain small-signal analysis considering the characteristics of power exchange in the phase-shifting controlled TPC. A simulation model built in MATLAB/Simulink and a prototype comprised of a battery, a UC, a programmable dc load, and auxiliary components are implemented to validate the proposed TPC-interfaced HESS under different operation scenarios.https://ieeexplore.ieee.org/document/8349946/DC microgridsdroop controlhybrid energy storage system (HESS)three-port convertervirtual impedance |
| spellingShingle | Panbao Wang Xiaonan Lu Wei Wang Dianguo Xu Frequency Division Based Coordinated Control of Three-Port Converter Interfaced Hybrid Energy Storage Systems in Autonomous DC Microgrids IEEE Access DC microgrids droop control hybrid energy storage system (HESS) three-port converter virtual impedance |
| title | Frequency Division Based Coordinated Control of Three-Port Converter Interfaced Hybrid Energy Storage Systems in Autonomous DC Microgrids |
| title_full | Frequency Division Based Coordinated Control of Three-Port Converter Interfaced Hybrid Energy Storage Systems in Autonomous DC Microgrids |
| title_fullStr | Frequency Division Based Coordinated Control of Three-Port Converter Interfaced Hybrid Energy Storage Systems in Autonomous DC Microgrids |
| title_full_unstemmed | Frequency Division Based Coordinated Control of Three-Port Converter Interfaced Hybrid Energy Storage Systems in Autonomous DC Microgrids |
| title_short | Frequency Division Based Coordinated Control of Three-Port Converter Interfaced Hybrid Energy Storage Systems in Autonomous DC Microgrids |
| title_sort | frequency division based coordinated control of three port converter interfaced hybrid energy storage systems in autonomous dc microgrids |
| topic | DC microgrids droop control hybrid energy storage system (HESS) three-port converter virtual impedance |
| url | https://ieeexplore.ieee.org/document/8349946/ |
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