Long and short term operation planning of electric energy systems

• Grant number: 99/12737-9
• Support Opportunities: Research Projects - Thematic Grants
• Start date: June 01, 2000
• End date: May 31, 2004
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Secundino Soares Filho
• Grantee: Secundino Soares Filho
• Host Institution: Faculdade de Engenharia Elétrica e de Computação (FEEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

The physical characteristics of Brazil, with large territorial area and river basins, together with the relatively small reserves of oil and mineral coal, have been responsible for the implantation of a power generation system with predominance of hydroelectric generation, responsible for 91% of the installed power capacity. The Brazilian hydroelectric reserves are estimated in 260 GW from which only 62 GW are in operation. Therefore, there exist 75% of this reserve to be exploited in the future, what make us believe that hydroelectricity will continue to have a major role in the attainment of the load demand increase during the next decades. The efficient management of this hydroelectric energy, that represents 30% of the primary energy domestic gross supply on the Brazilian energy balance is a strategic issue for the country.On the other hand, the run out of hydroelectric resources closer to the major load centers and the necessity of developing new hydroelectric resources far from this centers has required the constitution of a power system with long transmission lines. ln Brazil, there are more than 60 thousand kilometers of transmission lines with voltage higher than 230 KV. These two characteristics, dominantly hydroelectric generation system with long transmission lines, would require a carefully long and short term operation planning that takes into account aspects such as iteration between hydro plants in cascade, uncertainty with respect to future inflows and efficient use of the generating units and the transmission system. The objectives of the present research project are the conception, development, implementation, and test of new methodologies for long and short term operation planning of electric energy systems, with special attention to dominantly hydroelectric systems. The project aims to contribute with the Brazilian electric power system, its utilities and the government agencies for the system independent operation, ONS, and regulation, ANEEL, in order to provide new efficient tools for the operation planning of the Brazilian power system. (AU)