Virtual Inertia Implemented by Quasi-Z-Source Power Converter for Distributed Power System
This paper proposes a novel virtual inertia control strategy for distributed power systems with high penetration of renewable energy sources. The strategy uses a quasi-Z-source power converter to emulate the inertia response of a synchronous generator by regulating the DC-link capacitor voltage in p...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/18/6667 |
| _version_ | 1797580304254238720 |
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| author | Yitao Liu Hongle Chen Runqiu Fang |
| author_facet | Yitao Liu Hongle Chen Runqiu Fang |
| author_sort | Yitao Liu |
| collection | DOAJ |
| description | This paper proposes a novel virtual inertia control strategy for distributed power systems with high penetration of renewable energy sources. The strategy uses a quasi-Z-source power converter to emulate the inertia response of a synchronous generator by regulating the DC-link capacitor voltage in proportion to the grid frequency deviation. This paper analyzes the effect of inertia on the frequency regulation of a single-area power system and derives the parameter design method and limitations of the virtual inertia. The paper also introduces the working principle and modulation technique of the quasi-Z-source power converter and presents the virtual inertia control scheme based on a voltage-frequency controller. The paper verifies the feasibility and effectiveness of the proposed strategy through MATLAB/Simulink simulations and dSPACE semi-physical experiments. The results show that the proposed strategy can reduce the frequency deviation and rate of change of frequency (RoCoF) by 20% and 50%, respectively, under load disturbances. The paper demonstrates that the quasi-Z-source power converter can provide flexible and adjustable virtual inertia for distributed power systems without additional energy storage devices. |
| first_indexed | 2024-03-10T22:49:08Z |
| format | Article |
| id | doaj.art-56f2a33bf052449cbf4c633fd2f94918 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T22:49:08Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-56f2a33bf052449cbf4c633fd2f949182023-11-19T10:28:23ZengMDPI AGEnergies1996-10732023-09-011618666710.3390/en16186667Virtual Inertia Implemented by Quasi-Z-Source Power Converter for Distributed Power SystemYitao Liu0Hongle Chen1Runqiu Fang2College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, ChinaCollege of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, ChinaCollege of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, ChinaThis paper proposes a novel virtual inertia control strategy for distributed power systems with high penetration of renewable energy sources. The strategy uses a quasi-Z-source power converter to emulate the inertia response of a synchronous generator by regulating the DC-link capacitor voltage in proportion to the grid frequency deviation. This paper analyzes the effect of inertia on the frequency regulation of a single-area power system and derives the parameter design method and limitations of the virtual inertia. The paper also introduces the working principle and modulation technique of the quasi-Z-source power converter and presents the virtual inertia control scheme based on a voltage-frequency controller. The paper verifies the feasibility and effectiveness of the proposed strategy through MATLAB/Simulink simulations and dSPACE semi-physical experiments. The results show that the proposed strategy can reduce the frequency deviation and rate of change of frequency (RoCoF) by 20% and 50%, respectively, under load disturbances. The paper demonstrates that the quasi-Z-source power converter can provide flexible and adjustable virtual inertia for distributed power systems without additional energy storage devices.https://www.mdpi.com/1996-1073/16/18/6667distributed power systemquasi-Z-source power convertervirtual inertiavirtual synchronous generatorfrequency regulation |
| spellingShingle | Yitao Liu Hongle Chen Runqiu Fang Virtual Inertia Implemented by Quasi-Z-Source Power Converter for Distributed Power System Energies distributed power system quasi-Z-source power converter virtual inertia virtual synchronous generator frequency regulation |
| title | Virtual Inertia Implemented by Quasi-Z-Source Power Converter for Distributed Power System |
| title_full | Virtual Inertia Implemented by Quasi-Z-Source Power Converter for Distributed Power System |
| title_fullStr | Virtual Inertia Implemented by Quasi-Z-Source Power Converter for Distributed Power System |
| title_full_unstemmed | Virtual Inertia Implemented by Quasi-Z-Source Power Converter for Distributed Power System |
| title_short | Virtual Inertia Implemented by Quasi-Z-Source Power Converter for Distributed Power System |
| title_sort | virtual inertia implemented by quasi z source power converter for distributed power system |
| topic | distributed power system quasi-Z-source power converter virtual inertia virtual synchronous generator frequency regulation |
| url | https://www.mdpi.com/1996-1073/16/18/6667 |
| work_keys_str_mv | AT yitaoliu virtualinertiaimplementedbyquasizsourcepowerconverterfordistributedpowersystem AT honglechen virtualinertiaimplementedbyquasizsourcepowerconverterfordistributedpowersystem AT runqiufang virtualinertiaimplementedbyquasizsourcepowerconverterfordistributedpowersystem |