Three-phase Distribution System State Estimator Considering SCADA Measurements, Pseudo-measurements, Virtual Measurements and Synchronized Phasor Measurements

• Grant number: 12/22624-3
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: March 01, 2013
• End date: February 29, 2016
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Joao Bosco Augusto London Junior
• Grantee: Camila dos Anjos Fantin
• Host Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 11/01035-7 - Power system control and analysis, AP.TEM

Abstract

With the increasing deployment of automated meter infrastructure (smart meters and sensors), the amount of available measurements grows unprecedentedly in Distribution Systems (DSs). These happenings have motivated the development of state estimators for real-time monitoring of DSs, in order to obtain a more reliable data base for the implementation of various smart grid applications. However, the developed DS state estimators do not consider all the characteristics of DSs. This project proposes the development and computational implementation of a three-phase state estimator specific for DSs that enables an adequate treatment to all the characteristics of these systems. The proposed state estimator will allow: analysis of unbalanced systems with single-phase and three-phase loads; treatment of radial and meshed systems in a unified framework with the same precision; all realistic distribution system modeling details, considering the various types of transformer and load connections; treatment of several types of measurements (SCADA measurements, virtual measurements, pseudo-measurements and synchronized phasor measurements), weighting them in according to these precisions. To develop the proposed state estimator several studies will be performed focusing mainly in the following points: three-phase weighted least square state estimator formulations and its variations; three-phase DS modeling; the inclusion of synchronized phasor measurements in the process of three-phase state estimation.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

FANTIN, Camila dos Anjos. Three-phase distribution system state estimation methodology incorporating SCADA, virtual, pseudo-measurements and synchronized phasor measurements. 2016. Doctoral Thesis - Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) São Carlos.