Study of the impact of DC-DC converters on the protection strategy of HVDC grids
Study of the impact of DC-DC converters
on the protection strategy of HVDC grids
HVDC grids are expected to be a solution to upgrade the existing AC system. However, their development presents several technical challenges like power flow control, grid protection and interconnection of grids with different technology or voltage levels. One required technology for the development of such grids is the DC-DC converter capable of operating at hundreds of kilovolts and hundreds of megawatts. While different DC-DC converter topologies have been proposed in literature, most studies focus on the topology itself and there is a lack of studies that deal with their grid integration. This paper studies the role of DC-DC converters in the protection of HVDC grids acting as firewalls to stop the propagation of faults. The effects of blocking the converter or actively controlling its operation during faults are presented. The results demonstrate the capabilities of DC-DC converters beyond DC voltage transformation.
J. Paez, J. Maneiro, D. Frey, S. Bacha, A. Bertinato and P. Dworakowski
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.