Robustness Improvement of Superconducting Magnetic Energy Storage System in Microgrids Using an Energy Shaping Passivity-Based Control Strategy
Superconducting magnetic energy storage (SMES) systems, in which the proportional-integral (PI) method is usually used to control the SMESs, have been used in microgrids for improving the control performance. However, the robustness of PI-based SMES controllers may be unsatisfactory due to the high...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-05-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/10/5/671 |
| _version_ | 1828372079105277952 |
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| author | Rui Hou Huihui Song Thai-Thanh Nguyen Yanbin Qu Hak-Man Kim |
| author_facet | Rui Hou Huihui Song Thai-Thanh Nguyen Yanbin Qu Hak-Man Kim |
| author_sort | Rui Hou |
| collection | DOAJ |
| description | Superconducting magnetic energy storage (SMES) systems, in which the proportional-integral (PI) method is usually used to control the SMESs, have been used in microgrids for improving the control performance. However, the robustness of PI-based SMES controllers may be unsatisfactory due to the high nonlinearity and coupling of the SMES system. In this study, the energy shaping passivity (ESP)-based control strategy, which is a novel nonlinear control based on the methodology of interconnection and damping assignment (IDA), is proposed for robustness improvement of SMES systems. A step-by-step design of the ESP-based method considering the robustness of SMES systems is presented. A comparative analysis of the performance between ESP-based and PI control strategies is shown. Simulation and experimental results prove that the ESP-based strategy achieves the stronger robustness toward the system parameter uncertainties than the conventional PI control. Besides, the use of ESP-based control method can reduce the eddy current losses of a SMES system due to the significant reduction of 2nd and 3rd harmonics of superconducting coil DC current. |
| first_indexed | 2024-04-14T06:57:58Z |
| format | Article |
| id | doaj.art-6707017142914ed9a2b0375a1352174b |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T06:57:58Z |
| publishDate | 2017-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-6707017142914ed9a2b0375a1352174b2022-12-22T02:06:50ZengMDPI AGEnergies1996-10732017-05-0110567110.3390/en10050671en10050671Robustness Improvement of Superconducting Magnetic Energy Storage System in Microgrids Using an Energy Shaping Passivity-Based Control StrategyRui Hou0Huihui Song1Thai-Thanh Nguyen2Yanbin Qu3Hak-Man Kim4Department of Electrical Engineering, Incheon National University, (Songdo-dong)119 Academy-ro, Yeonsu-gu, Incheon 22012, KoreaSchool of Information and Electrical Engineering, Harbin Institute of Technology at Weihai, No.2 in Wenhua Xi Road, Weihai 264209, ChinaDepartment of Electrical Engineering, Incheon National University, (Songdo-dong)119 Academy-ro, Yeonsu-gu, Incheon 22012, KoreaSchool of Information and Electrical Engineering, Harbin Institute of Technology at Weihai, No.2 in Wenhua Xi Road, Weihai 264209, ChinaDepartment of Electrical Engineering, Incheon National University, (Songdo-dong)119 Academy-ro, Yeonsu-gu, Incheon 22012, KoreaSuperconducting magnetic energy storage (SMES) systems, in which the proportional-integral (PI) method is usually used to control the SMESs, have been used in microgrids for improving the control performance. However, the robustness of PI-based SMES controllers may be unsatisfactory due to the high nonlinearity and coupling of the SMES system. In this study, the energy shaping passivity (ESP)-based control strategy, which is a novel nonlinear control based on the methodology of interconnection and damping assignment (IDA), is proposed for robustness improvement of SMES systems. A step-by-step design of the ESP-based method considering the robustness of SMES systems is presented. A comparative analysis of the performance between ESP-based and PI control strategies is shown. Simulation and experimental results prove that the ESP-based strategy achieves the stronger robustness toward the system parameter uncertainties than the conventional PI control. Besides, the use of ESP-based control method can reduce the eddy current losses of a SMES system due to the significant reduction of 2nd and 3rd harmonics of superconducting coil DC current.http://www.mdpi.com/1996-1073/10/5/671microgrid (MG)renewable power generationsuperconducting magnetic energy storage (SMES)energy shaping passivity (ESP)-based control |
| spellingShingle | Rui Hou Huihui Song Thai-Thanh Nguyen Yanbin Qu Hak-Man Kim Robustness Improvement of Superconducting Magnetic Energy Storage System in Microgrids Using an Energy Shaping Passivity-Based Control Strategy Energies microgrid (MG) renewable power generation superconducting magnetic energy storage (SMES) energy shaping passivity (ESP)-based control |
| title | Robustness Improvement of Superconducting Magnetic Energy Storage System in Microgrids Using an Energy Shaping Passivity-Based Control Strategy |
| title_full | Robustness Improvement of Superconducting Magnetic Energy Storage System in Microgrids Using an Energy Shaping Passivity-Based Control Strategy |
| title_fullStr | Robustness Improvement of Superconducting Magnetic Energy Storage System in Microgrids Using an Energy Shaping Passivity-Based Control Strategy |
| title_full_unstemmed | Robustness Improvement of Superconducting Magnetic Energy Storage System in Microgrids Using an Energy Shaping Passivity-Based Control Strategy |
| title_short | Robustness Improvement of Superconducting Magnetic Energy Storage System in Microgrids Using an Energy Shaping Passivity-Based Control Strategy |
| title_sort | robustness improvement of superconducting magnetic energy storage system in microgrids using an energy shaping passivity based control strategy |
| topic | microgrid (MG) renewable power generation superconducting magnetic energy storage (SMES) energy shaping passivity (ESP)-based control |
| url | http://www.mdpi.com/1996-1073/10/5/671 |
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