Interior Point Methods Applied to the Predispatch Problem of a Hydroelectric and Hydrothermal System with Rotating Reserve, Scheduled Maneuvers and Ramp Restrictions.

• Grant number: 17/16393-2
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2017
• End date: April 30, 2020
• Field of knowledge: Engineering - Electrical Engineering
• Principal Investigator: Silvia Maria Simões de Carvalho
• Grantee: Silvia Maria Simões de Carvalho
• Host Institution: Centro de Ciências e Tecnologias para a Sustentabilidade (CCTS). Universidade Federal de São Carlos (UFSCAR). Sorocaba , SP, Brazil
• City of the host institution: Sorocaba
• Associated researchers: Aurelio Ribeiro Leite de Oliveira ; Magda da Silva Peixoto ; Mayk Vieira Coelho

Abstract

Primal-dual interior point methods will be developed for the problem of minimizing losses in the generation and transmission of the predispatch of a hydroelectric and hydrothermal power system where programmed maneuvers, spinning reserve and ramp restrictions occur. The resultingmatrix structure will be exploited for efficient implementation. Since the energy demand varies throughout the day, the power generation must follow the load variation, thus it is necessary to perform some scheduled maneuvers to maintain generators and to adapt the transmissionnetwork to this load, enabling to to attend it efficiently and keeping the system stable. The rotating reserve keeps the system fit to meet unforeseen energy demands. The thermoelectric plants, in turn, present ramp restrictions, since they need a certain time both to increase and to reduce their energy production. The consideration of additional maneuvers and restrictions approximates the model to the pre-dispatch problem of the Brazilian system according to the National System Operator. (AU)