Full text
| |
| Author(s): |
Camila dos Anjos Fantin
Total Authors: 1
|
| Document type: | Doctoral Thesis |
| Press: | São Carlos. |
| Institution: | Universidade de São Paulo (USP). Escola de Engenharia de São Carlos (EESC/SBD) |
| Defense date: | 2016-11-28 |
| Examining board members: |
João Bosco Augusto London Junior;
Eduardo Nobuhiro Asada;
Elizete Maria Lourenço;
José Roberto Sanches Mantovani;
João Alberto Passos Filho
|
| Advisor: | Joao Bosco Augusto London Junior |
| Abstract | |
This thesis proposes a multi-phase unbalanced distribution system (DS) state estimation methodology based on the weighted least squares technique, which allows: load pseudo-measurement modeling; observability analysis and restoration by selecting the required pseudo-measurements (load pseudo-measurements and/or historical measurement data); identication of critical measurements; state estimation; and, nally, gross errors processing. The proposed methodology intends to be a practical tool able to be applied to a variety of DSs, considering latest and future realities. Therefore, the proposed methodology has the following features: (i) includes all realistic DS modeling details, such as, various types of transformer and voltage regulator connections, the presence of single, two and three-phase circuits, as well as the possibility of both the mutual coupling between phases and the shunt susceptance; (ii) treat three-phase networks with high resistance/reactance ratios in a unied framework; and (iii) process measurements with very distinct qualities, some of them are real-time measurements provided by Supervisory Control Data Acquisition (SCADA) systems, Advanced Metering Infrastructure (AMI), Phasor Measurement Units (PMUs), other are virtual measurements (information provided by the buses of zero power injection) and also the pseudo-measurements (load pseudo-measurements, load proles and historical measurement data). Several simulations results (with IEEE 34 and 4 node test feeders) have demonstrated satisfactory performance of the proposed methodology. (AU) | |
| FAPESP's process: | 12/22624-3 - Three-phase Distribution System State Estimator Considering SCADA Measurements, Pseudo-measurements, Virtual Measurements and Synchronized Phasor Measurements |
| Grantee: | Camila dos Anjos Fantin |
| Support Opportunities: | Scholarships in Brazil - Doctorate |