Joint primary frequency regulation strategy for asynchronous power grids connected by a VSC‐MTDC system
Abstract Asynchronous interconnection will reduce the inertia of each grid, and it is difficult for a small inertia grid to maintain frequency stability under the fluctuation of new energy or load. In order to improve the frequency stability of asynchronous power grids connected by a voltage source...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-11-01
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| Series: | IET Renewable Power Generation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/rpg2.12247 |
| _version_ | 1811266408926937088 |
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| author | Guoteng Wang Zheren Zhang Zheng Xu |
| author_facet | Guoteng Wang Zheren Zhang Zheng Xu |
| author_sort | Guoteng Wang |
| collection | DOAJ |
| description | Abstract Asynchronous interconnection will reduce the inertia of each grid, and it is difficult for a small inertia grid to maintain frequency stability under the fluctuation of new energy or load. In order to improve the frequency stability of asynchronous power grids connected by a voltage source converters based multi‐terminal direct current (VSC‐MTDC) system, a joint primary frequency regulation (JPFR) strategy is proposed in this paper. The main principle of the proposed JPFR strategy is firstly to formulate frequency regulation protocols (FRPs) between asynchronous power grids. Next, an improved analytical steady‐state model of the VSC‐MTDC system is adopted. The improved model can calculate the power reference of each VSC according to the FRP, avoiding the impact on the grid not participating in the protocol. Then, based on the sequential search method, the results of the improved model are modified to prevent overload. Finally, simulations of a four‐terminal VSC‐MTDC system are carried out for validating the proposed JPFR strategy. |
| first_indexed | 2024-04-12T20:42:38Z |
| format | Article |
| id | doaj.art-7609beb601144c5dac58d01c16999c3a |
| institution | Directory Open Access Journal |
| issn | 1752-1416 1752-1424 |
| language | English |
| last_indexed | 2024-04-12T20:42:38Z |
| publishDate | 2021-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Renewable Power Generation |
| spelling | doaj.art-7609beb601144c5dac58d01c16999c3a2022-12-22T03:17:22ZengWileyIET Renewable Power Generation1752-14161752-14242021-11-0115153588360010.1049/rpg2.12247Joint primary frequency regulation strategy for asynchronous power grids connected by a VSC‐MTDC systemGuoteng Wang0Zheren Zhang1Zheng Xu2College of Electrical Engineering Zhejiang University Hangzhou Zhejiang 310027 People's Republic of ChinaCollege of Electrical Engineering Zhejiang University Hangzhou Zhejiang 310027 People's Republic of ChinaCollege of Electrical Engineering Zhejiang University Hangzhou Zhejiang 310027 People's Republic of ChinaAbstract Asynchronous interconnection will reduce the inertia of each grid, and it is difficult for a small inertia grid to maintain frequency stability under the fluctuation of new energy or load. In order to improve the frequency stability of asynchronous power grids connected by a voltage source converters based multi‐terminal direct current (VSC‐MTDC) system, a joint primary frequency regulation (JPFR) strategy is proposed in this paper. The main principle of the proposed JPFR strategy is firstly to formulate frequency regulation protocols (FRPs) between asynchronous power grids. Next, an improved analytical steady‐state model of the VSC‐MTDC system is adopted. The improved model can calculate the power reference of each VSC according to the FRP, avoiding the impact on the grid not participating in the protocol. Then, based on the sequential search method, the results of the improved model are modified to prevent overload. Finally, simulations of a four‐terminal VSC‐MTDC system are carried out for validating the proposed JPFR strategy.https://doi.org/10.1049/rpg2.12247Voltage controlFrequency controlControl of electric power systemsPower system controld.c. transmissionPower convertors and power supplies to apparatus |
| spellingShingle | Guoteng Wang Zheren Zhang Zheng Xu Joint primary frequency regulation strategy for asynchronous power grids connected by a VSC‐MTDC system IET Renewable Power Generation Voltage control Frequency control Control of electric power systems Power system control d.c. transmission Power convertors and power supplies to apparatus |
| title | Joint primary frequency regulation strategy for asynchronous power grids connected by a VSC‐MTDC system |
| title_full | Joint primary frequency regulation strategy for asynchronous power grids connected by a VSC‐MTDC system |
| title_fullStr | Joint primary frequency regulation strategy for asynchronous power grids connected by a VSC‐MTDC system |
| title_full_unstemmed | Joint primary frequency regulation strategy for asynchronous power grids connected by a VSC‐MTDC system |
| title_short | Joint primary frequency regulation strategy for asynchronous power grids connected by a VSC‐MTDC system |
| title_sort | joint primary frequency regulation strategy for asynchronous power grids connected by a vsc mtdc system |
| topic | Voltage control Frequency control Control of electric power systems Power system control d.c. transmission Power convertors and power supplies to apparatus |
| url | https://doi.org/10.1049/rpg2.12247 |
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