Projektdetaljer
Beskrivelse
Abstract:
Due to some challenges, such as environmental pollution, shortage in fossil resources and the energy cost, renewable energies power generation has grown explosively in the past decade. Yet the utilization of renewable energies like wind power, suffers from the long distance between the wind resource center and the power demand center. To address this issue, High Voltage Direct Current (HVDC) transmission systems, especially the Voltage Source Converter (VSC) HVDC, with the advantages of long-distance bulk power transmission, has been widely applied worldwide. Although the HVDC systems have many advantages, the protection system of HVDC is one of most important problems due to high fault current and fast fault propagation speed with the presence of multiterminal (MT) HVDC systems, in particular meshed ones. This study focuses on the protection of multi-terminal HVDC transmission lines. Although there are several types of protection schemes that have been considered to detect faults in the HVDC transmission systems, each of these schemes have some disadvantages. They need to investigation more to protect the future power systems. The main purpose of this study is to comprehensively investigate and design the protection schemes for the future of multi-terminal VSC -HVDC transmission lines and improve relevant protection methods to address the challenges of the HVDC protection systems. Moreover, the impact of different fault current limiters and breakers on the protection of the VSC-MT HVDC will be investigated.
Funding: Self-funded
Due to some challenges, such as environmental pollution, shortage in fossil resources and the energy cost, renewable energies power generation has grown explosively in the past decade. Yet the utilization of renewable energies like wind power, suffers from the long distance between the wind resource center and the power demand center. To address this issue, High Voltage Direct Current (HVDC) transmission systems, especially the Voltage Source Converter (VSC) HVDC, with the advantages of long-distance bulk power transmission, has been widely applied worldwide. Although the HVDC systems have many advantages, the protection system of HVDC is one of most important problems due to high fault current and fast fault propagation speed with the presence of multiterminal (MT) HVDC systems, in particular meshed ones. This study focuses on the protection of multi-terminal HVDC transmission lines. Although there are several types of protection schemes that have been considered to detect faults in the HVDC transmission systems, each of these schemes have some disadvantages. They need to investigation more to protect the future power systems. The main purpose of this study is to comprehensively investigate and design the protection schemes for the future of multi-terminal VSC -HVDC transmission lines and improve relevant protection methods to address the challenges of the HVDC protection systems. Moreover, the impact of different fault current limiters and breakers on the protection of the VSC-MT HVDC will be investigated.
Funding: Self-funded
| Status | Igangværende |
|---|---|
| Effektiv start/slut dato | 01/12/2021 → 30/11/2024 |
Finansiering
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