Abstract
Contribution to the power systems’ frequency support is expected to be one of the essential ancillary services that wind power plants (WPPs) shall provide. The high-voltage DC (HVDC) connected offshore WPPs may provide this service with and without using fast communication links between onshore and offshore. In the case of offshore HVDC grid, implementing the communication-less frequency support is challenging. Although it increases the reliability of the frequency control, among other challenges, it is not straightforward to comply with relevant grid code requirements. In this paper, this issue is mathematically described and a static model is developed to calculate the deviation of various electrical parameters of an HVDC grid in case of frequency drop on the land ac systems. A solution for the aforementioned problem is presented and its associated concerns are addressed. The study is verified by simulations of a four terminals dc grid with two offshore WPPs and two inland ac systems.
Original language | English |
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Title of host publication | Proceedings of the 2019 IEEE Milan PowerTech |
Number of pages | 6 |
Publisher | IEEE |
Publication date | 2019 |
Pages | 1-6 |
ISBN (Print) | 978-1-5386-4723-3 |
ISBN (Electronic) | 978-1-5386-4722-6 |
DOIs | |
Publication status | Published - 2019 |
Event | 13th IEEE PowerTech Milano 2019: Leading innovation for energy transition - Bovisa Campus of Politecnico di Milano, Milano, Italy Duration: 23 Jun 2019 → 27 Jun 2019 Conference number: 13 http://ieee-powertech.org/ |
Conference
Conference | 13th IEEE PowerTech Milano 2019 |
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Number | 13 |
Location | Bovisa Campus of Politecnico di Milano |
Country/Territory | Italy |
City | Milano |
Period | 23/06/2019 → 27/06/2019 |
Other | PowerTech is the anchor conference of the IEEE Power & Energy Society (PES) in Europe |
Internet address |
Series | Proceedings of the IEEE |
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ISSN | 0018-9219 |
Keywords
- Droop control
- frequency support
- HVDC
- offshore wind