Advanced search
Start date

Fault detection, fault location and intelligent protection of multiterminal HVDC lines

Grant number: 15/21167-6
Support type:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): September 01, 2016
Effective date (End): March 31, 2021
Field of knowledge:Engineering - Electrical Engineering - Power Systems
Principal researcher:Denis Vinicius Coury
Grantee:Vinícius Albernaz Lacerda Freitas
Home Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated scholarship(s):18/10667-6 - Intelligent protection of multiterminal VSC-HVDC systems: aspects of simulation and implementation, BE.EP.DD


The need to interconnect different power sources, connect unsynchronized systems, have flexibility in power flow and transport energy over long distances, as well as the new concept of smart gridsh as encouraged the return on investment and research in order to consolidate HVDC transmission as a current response to contemporary demands. VSC converters enable the interconnection of multiple HVDC topologies, resulting in a multiterminal network. However, VSC converters are sensitive to short-circuit currents, thus imposing the need for rapid fault detection and location. It is therefore necessary to develop protection and location algorithms specific for VSC-HVDC system requirements, especially in terms of multiterminal networks. The algorithm needs to be selective and extremely fast, isolating the lower portion of the system in a few milliseconds.In this context, this Direct PhD project aims to study and develop a protection algorithm for VSC-HVDC systems. The algorithm will have as a differential the use of intelligent techniques such as artificial neural networks and fuzzy logic. The use of intelligent tools in HVDC protection systems is still a relatively unexplored topic and with few results, and are the most common algorithms based on the traveling wave phenomenon and techniques based on voltage and current derivatives. Nevertheless the large capacity of pattern recognition and analysis of fuzzy variables gives the intelligent algorithms a unique feature, which can be decisive in the ability to meet the speed and selectivity requirements for protection. (AU)

News published in Agência FAPESP Newsletter about the scholarship:
Articles published in other media outlets (0 total):
More itemsLess items

Scientific publications (6)
(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)
LACERDA, VINICIUS ALBERNAZ; MONARO, RENATO MACHADO; CAMPOS-GAONA, DAVID; PENA-ALZOLA, RAFAEL; COURY, DENIS VINICIUS. An Approximated Analytical Model for Pole-to-Ground Faults in Symmetrical Monopole MMC-HVDC Systems. IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, v. 9, n. 6, p. 7009-7017, DEC 2021. Web of Science Citations: 0.
LOPES, GABRIELA NUNES; LACERDA, VINICIUS ALBERNAZ; VIEIRA, JOSE CARLOS MELO; COURY, DENIS VINICIUS. nalysis of Signal Processing Techniques for High Impedance Fault Detection in Distribution System. IEEE Transactions on Power Delivery, v. 36, n. 6, p. 3438-3447, DEC 2021. Web of Science Citations: 0.
BARRA, P. H. A.; LACERDA, V. A.; FERNANDES, R. A. S.; COURY, D. V. A hardware-in-the-loop testbed for microgrid protection considering non-standard curves. Electric Power Systems Research, v. 196, JUL 2021. Web of Science Citations: 0.
LACERDA, VINICIUS A.; MONARO, RENATO M.; COURY, DENIS V. Fault distance estimation in multiterminal HVDC systems using the. Electric Power Systems Research, v. 196, JUL 2021. Web of Science Citations: 0.
LACERDA, VINICIUS ALBERNAZ; PENA-ALZOLA, RAFAEL; CAMPOS-GAONA, DAVID; MONARO, RENATO MACHADO; ANAYA-LARA, OLIMPO; COURY, DENIS VINICIUS. Short-Circuit Analytical Model for Modular Multilevel Converters Considering DC Cable Capacitance. IEEE ACCESS, v. 8, p. 202774-202784, 2020. Web of Science Citations: 0.
LACERDA, VINICIUS A.; COURY, DENIS V.; MONARO, RENATO M. LCL filter design for VSC-HVDC systems supplying passive grids. Electric Power Systems Research, v. 152, p. 160-167, NOV 2017. Web of Science Citations: 3.

Please report errors in scientific publications list by writing to: