| Grant number: | 15/21167-6 |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| Start date: | September 01, 2016 |
| End date: | March 31, 2021 |
| Field of knowledge: | Engineering - Electrical Engineering - Power Systems |
| Principal Investigator: | Denis Vinicius Coury |
| Grantee: | Vinícius Albernaz Lacerda Freitas |
| Host 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 |
Abstract The need to interconnect different power sources, connect unsynchronized systems, have flexibilityin power flow and transport energy over long distances, as well as the new concept of Smart Gridshas encouraged the return on investment and research in order to consolidate HVDC transmissionas a current response to contemporary demands. VSC converters enable the interconnection ofmultiple HVDC topologies, resulting in a multiterminal network. However, VSC converters aresensitive 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-HVDCsystem requirements, especially in terms of multiterminal networks. The algorithm needs tobe 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 forVSC-HVDC systems. The algorithm will have as a differential the use of intelligent techniquessuch as Artificial Neural Networks and Fuzzy Logic. The use of intelligent tools in HVDCprotection systems is still a relatively unexplored topic and with few results, and are the mostcommon algorithms based on the traveling wave phenomenon and techniques based on voltageand current derivatives. Nevertheless the large capacity of pattern recognition and analysis offuzzy variables gives the intelligent algorithms a unique feature, which can be decisive in theability to meet the speed and selectivity requirements for protection. | |
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