Small-Signal Stability Analysis of the Power System Based on Active Support of Renewable Energy VSCs
With the large-scale renewable energy access to the power system, the voltage source converters (VSCs) in the system are gradually increasing. The system inertia is weakened, which leads to the decrease in frequency supportability and affects the stability of the power system. After adopting active...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-05-01
|
| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2022.907790/full |
| _version_ | 1797956715845517312 |
|---|---|
| author | Tianfeng Chu Tianfeng Chu Miao Xu Yu Xie Shunjiang Wang Dianyang Li Gang Liu |
| author_facet | Tianfeng Chu Tianfeng Chu Miao Xu Yu Xie Shunjiang Wang Dianyang Li Gang Liu |
| author_sort | Tianfeng Chu |
| collection | DOAJ |
| description | With the large-scale renewable energy access to the power system, the voltage source converters (VSCs) in the system are gradually increasing. The system inertia is weakened, which leads to the decrease in frequency supportability and affects the stability of the power system. After adopting active support control, VSC-based renewable energy units have inertia supportability similar to traditional synchronous generators (SGs), which can improve the frequency stability of the power system. This article is intended to the control strategy based on active support of renewable energy. Small-signal stability of a two-zone system with different control strategies for VSCs under different conditions is analyzed. At the same time, the dynamic adjustment effect of different parameters on active support control is considered, and frequency stability of a two-zone system with inertial flexible control is improved. In this article, the basic principle of active support control is expounded in detail. Compared with PQ-control and droop-control, it is verified that active support control has good frequency supportability. The small-signal model of VSCs for active support and two-machine system is established. Combined with the simulation system, the influence of virtual inertia and damping coefficient on system stability is verified. |
| first_indexed | 2024-04-10T23:53:13Z |
| format | Article |
| id | doaj.art-2d8f7c3ef9604cab98f9a1ee6ae90802 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-10T23:53:13Z |
| publishDate | 2022-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-2d8f7c3ef9604cab98f9a1ee6ae908022023-01-10T14:59:55ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2022-05-011010.3389/fenrg.2022.907790907790Small-Signal Stability Analysis of the Power System Based on Active Support of Renewable Energy VSCsTianfeng Chu0Tianfeng Chu1Miao Xu2Yu Xie3Shunjiang Wang4Dianyang Li5Gang Liu6College of Information Science and Engineering, Northeastern University, Shenyang, ChinaElectric Power Research Institute of State Grid Liaoning Electric Power, Shenyang, ChinaThe State Grid Liaoning Electric Power, Shenyang, ChinaNortheast Electric Power University, Jilin, ChinaThe State Grid Liaoning Electric Power, Shenyang, ChinaThe State Grid Liaoning Electric Power, Shenyang, ChinaThe State Grid Liaoning Electric Power, Shenyang, ChinaWith the large-scale renewable energy access to the power system, the voltage source converters (VSCs) in the system are gradually increasing. The system inertia is weakened, which leads to the decrease in frequency supportability and affects the stability of the power system. After adopting active support control, VSC-based renewable energy units have inertia supportability similar to traditional synchronous generators (SGs), which can improve the frequency stability of the power system. This article is intended to the control strategy based on active support of renewable energy. Small-signal stability of a two-zone system with different control strategies for VSCs under different conditions is analyzed. At the same time, the dynamic adjustment effect of different parameters on active support control is considered, and frequency stability of a two-zone system with inertial flexible control is improved. In this article, the basic principle of active support control is expounded in detail. Compared with PQ-control and droop-control, it is verified that active support control has good frequency supportability. The small-signal model of VSCs for active support and two-machine system is established. Combined with the simulation system, the influence of virtual inertia and damping coefficient on system stability is verified.https://www.frontiersin.org/articles/10.3389/fenrg.2022.907790/fullactive supportfrequency stabilitysmall-signal analysisvirtual inertiaVSC control strategy |
| spellingShingle | Tianfeng Chu Tianfeng Chu Miao Xu Yu Xie Shunjiang Wang Dianyang Li Gang Liu Small-Signal Stability Analysis of the Power System Based on Active Support of Renewable Energy VSCs Frontiers in Energy Research active support frequency stability small-signal analysis virtual inertia VSC control strategy |
| title | Small-Signal Stability Analysis of the Power System Based on Active Support of Renewable Energy VSCs |
| title_full | Small-Signal Stability Analysis of the Power System Based on Active Support of Renewable Energy VSCs |
| title_fullStr | Small-Signal Stability Analysis of the Power System Based on Active Support of Renewable Energy VSCs |
| title_full_unstemmed | Small-Signal Stability Analysis of the Power System Based on Active Support of Renewable Energy VSCs |
| title_short | Small-Signal Stability Analysis of the Power System Based on Active Support of Renewable Energy VSCs |
| title_sort | small signal stability analysis of the power system based on active support of renewable energy vscs |
| topic | active support frequency stability small-signal analysis virtual inertia VSC control strategy |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2022.907790/full |
| work_keys_str_mv | AT tianfengchu smallsignalstabilityanalysisofthepowersystembasedonactivesupportofrenewableenergyvscs AT tianfengchu smallsignalstabilityanalysisofthepowersystembasedonactivesupportofrenewableenergyvscs AT miaoxu smallsignalstabilityanalysisofthepowersystembasedonactivesupportofrenewableenergyvscs AT yuxie smallsignalstabilityanalysisofthepowersystembasedonactivesupportofrenewableenergyvscs AT shunjiangwang smallsignalstabilityanalysisofthepowersystembasedonactivesupportofrenewableenergyvscs AT dianyangli smallsignalstabilityanalysisofthepowersystembasedonactivesupportofrenewableenergyvscs AT gangliu smallsignalstabilityanalysisofthepowersystembasedonactivesupportofrenewableenergyvscs |