Studies on protection of electric power systems with distributed generation exploring an open library of protection relays

• Grant number: 14/24914-4
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: March 01, 2015
• End date: February 29, 2016
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Fernanda Caseño Trindade Arioli
• Grantee: Felipe Bayma Barbosa Rolim
• Host Institution: Faculdade de Engenharia Elétrica e de Computação (FEEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The increase in the penetration level of distributed generation in electrical power distribution systems all around the world resulted in the need for specialized and easy tools to help engineers, researchers and students in understanding and solving technical challenges related to this reality. Among the studies that can be benefited by these simulation tools, one can highlight studies related to power system protection. Consequently, detailed and reliable models are needed. In this context, the research group of the Department of Energy and Systems at the School of Electrical and Computer Engineering from University of Campinas developed a relay library (with dynamic models): DG ProtectionLib. Currently, this library has fifteen models of relays and two logic functions that can be employed in protection systems with distributed generation. In short term, the objective is to offer this library online and free, so its use can be widespread and the models can be improved and used to support protection studies. This undergraduate research work aims to conduct protection studies in distribution systems with Distributed Generators considering different types of generators (synchronous generators, induction generators and inverter-based generators) and provide representative examples of application of these relays. The development of a didactic presentation of the library models will assist further studies in this area and the use of the library by other researchers, students and engineers. (AU)