Flexible Droop Coefficient-Based Inertia and Voltage Cascade Control for Isolated PV-Battery DC Microgrid
To realize the coordinated distribution of power in the multi-source system, maintain the charging balance among energy storage units, and improve the anti-interference capability of the bus voltage, a cascade control for an isolated PV-battery DC microgrid is proposed in this paper. First, to provi...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/24/9318 |
| _version_ | 1797459858698534912 |
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| author | Zhilong Yin Shuilian Xue Zhiguo Wang Feng Yu Hailiang Chen |
| author_facet | Zhilong Yin Shuilian Xue Zhiguo Wang Feng Yu Hailiang Chen |
| author_sort | Zhilong Yin |
| collection | DOAJ |
| description | To realize the coordinated distribution of power in the multi-source system, maintain the charging balance among energy storage units, and improve the anti-interference capability of the bus voltage, a cascade control for an isolated PV-battery DC microgrid is proposed in this paper. First, to provide inertia for the microgrid so that it can cope with external disturbance, the parameters of the droop curve were adjusted by correlating the bus voltage variation rate, which improved the conventional droop control. Secondly, a nonsingular terminal sliding mode control was proposed to track voltage and current references and, thus, enhance the robustness of the DC microgrid. Moreover, the high-frequency chattering of the sliding mode control was inhibited with the exponential reaching law, and the Lyapunov function was utilized to verify the stability of the proposed nonsingular terminal sliding mode control method. Both the simulated and experimental results verified the correctness and effectiveness of the proposed method. |
| first_indexed | 2024-03-09T16:56:56Z |
| format | Article |
| id | doaj.art-ac71a0c045434e76a551ccddc2eaa185 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T16:56:56Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-ac71a0c045434e76a551ccddc2eaa1852023-11-24T14:34:43ZengMDPI AGEnergies1996-10732022-12-011524931810.3390/en15249318Flexible Droop Coefficient-Based Inertia and Voltage Cascade Control for Isolated PV-Battery DC MicrogridZhilong Yin0Shuilian Xue1Zhiguo Wang2Feng Yu3Hailiang Chen4Xi’an Dynamic Inspection and Testing Co., Ltd., Xi’an 710000, ChinaXi’an Dynamic Inspection and Testing Co., Ltd., Xi’an 710000, ChinaXi’an Dynamic Inspection and Testing Co., Ltd., Xi’an 710000, ChinaSchool of Electrical Engineering, Nantong University, Nantong 226019, ChinaNanjing Moral Testing and Certification Co., Ltd., Nanjing 211106, ChinaTo realize the coordinated distribution of power in the multi-source system, maintain the charging balance among energy storage units, and improve the anti-interference capability of the bus voltage, a cascade control for an isolated PV-battery DC microgrid is proposed in this paper. First, to provide inertia for the microgrid so that it can cope with external disturbance, the parameters of the droop curve were adjusted by correlating the bus voltage variation rate, which improved the conventional droop control. Secondly, a nonsingular terminal sliding mode control was proposed to track voltage and current references and, thus, enhance the robustness of the DC microgrid. Moreover, the high-frequency chattering of the sliding mode control was inhibited with the exponential reaching law, and the Lyapunov function was utilized to verify the stability of the proposed nonsingular terminal sliding mode control method. Both the simulated and experimental results verified the correctness and effectiveness of the proposed method.https://www.mdpi.com/1996-1073/15/24/9318cascade controlinertia controlisolated PV-battery DC microgriddroop controlnonsingular terminal sliding mode |
| spellingShingle | Zhilong Yin Shuilian Xue Zhiguo Wang Feng Yu Hailiang Chen Flexible Droop Coefficient-Based Inertia and Voltage Cascade Control for Isolated PV-Battery DC Microgrid Energies cascade control inertia control isolated PV-battery DC microgrid droop control nonsingular terminal sliding mode |
| title | Flexible Droop Coefficient-Based Inertia and Voltage Cascade Control for Isolated PV-Battery DC Microgrid |
| title_full | Flexible Droop Coefficient-Based Inertia and Voltage Cascade Control for Isolated PV-Battery DC Microgrid |
| title_fullStr | Flexible Droop Coefficient-Based Inertia and Voltage Cascade Control for Isolated PV-Battery DC Microgrid |
| title_full_unstemmed | Flexible Droop Coefficient-Based Inertia and Voltage Cascade Control for Isolated PV-Battery DC Microgrid |
| title_short | Flexible Droop Coefficient-Based Inertia and Voltage Cascade Control for Isolated PV-Battery DC Microgrid |
| title_sort | flexible droop coefficient based inertia and voltage cascade control for isolated pv battery dc microgrid |
| topic | cascade control inertia control isolated PV-battery DC microgrid droop control nonsingular terminal sliding mode |
| url | https://www.mdpi.com/1996-1073/15/24/9318 |
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