Mobility of researchers for protection of high voltage direct current lines

• Grant number: 14/50317-3
• Support Opportunities: Regular Research Grants
• Start date: July 01, 2014
• End date: June 30, 2015
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Agreement: University of Bath
• Principal Investigator: Denis Vinicius Coury
• Grantee: Denis Vinicius Coury
• Principal researcher abroad: Simon Le Blond
• Institution abroad: University of Bath, England
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 10/01690-2 - Technological development for protection, analysis, supervision and automation of electrical power systems of the future, AP.TEM

Abstract

Recent developments in DC circuit breakers and VSC (Voltage Source Converter) technology mean that multi- terminal HVDC is becoming increasingly technically and economically feasible. HVDC allows electric power to be transmitled over large distances with relatively fewer losses and without the stability problems of HVAC (High Voltage Alternate Current). Multi-terminal HVDC has often been proposed as a possibility for a European super-grid or connecting a large number of offshore wind farms, and has similar applications in large countries such as Brazil, which has significant hydro-resources away from centres of population. In conventional HVDC point-to-point links, the circuit breakers reside on the AC side, and in the event of fault, the entire link is de-energised. In the multi- terminal case however, it is more desirable to isolate only the faulted link rather than trip the entire DC grid. Not only does this require DC breakers, but also a DC protection relay that will discern when to operate the breakers. This project will investigate the feasibility of novel methods for DC protection relays, particularly combining the use of high frequency post fault information and AI inference engines such as Neural Networks and Fuzzy systems. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

LE BLOND, S.; BERTHO, JR., R.; COURY, D. V.; VIEIRA, J. C. M.. Design of protection schemes for multi-terminal HVDC systems. RENEWABLE & SUSTAINABLE ENERGY REVIEWS, v. 56, p. 965-974, APR 2016. (14/50317-3)