Metodologia para análise do balanço energético usando estimador de estados e medição em tempo real

Abstract

With the advent of smart grid, it is expected a new design for operation and planning of the electrical systems, changing the way how we manage and relate to the distribution systems. The term Smart Grid is used as an approach to characterize a series of techniques, methodologies and process that seek to respond to the new demands and challenges of the electrical systems. With the gradual automation of networks and monitoring is necessary to the development of applications that optimize the use of these resources. One of them is the use of the State Estimator as a tool to provide the knowledge of the electrical network status in real time more accurately. Additionally, the concepts involving smart metering provide more effective use of data for the energy distributors. All these aspects when analyzed together make up a large database, that can be used for the analysis of the energy balance of the electric distribution system. Energy balance analysis of electric system involves concepts that allow to obtain the amount of lost energy in the process of transmission, transformation and distribution of energy by concessionaires from energy billed and energy provided. Referring to the energy balance is important to the total electrical losses approach, technical and non-technical losses. Thus this paper proposes a methodology for analysis of energy balance of distribution networks using State Estimator to analysis the power flow. The tool can also be used to support the identification of non-compliance of meters, identification of errors between measures obtained from readings and calculated measures by the estimator in each equipment. In addition to providing a better use of the available measurements. The simulations are performed using a real network available by a distributor of energy.