Full text
| |
| Author(s): |
Moussa Reda Mansour
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: | 2013-04-29 |
| Examining board members: |
Luís Fernando Costa Alberto;
Tatiana Mariano Lessa de Assis;
Rodrigo Andrade Ramos;
Marcelos Groetaers dos Santos;
Luiz Carlos Pereira da Silva
|
| Advisor: | Luís Fernando Costa Alberto; Rodrigo Andrade Ramos |
| Abstract | |
The complexity of the security assessment in Electric Power Systems (EPS) has received much attention from researches in recent years. The continuous growth in the number of interconnections, allied to networks operating with high loading levels, enhance the probability of incidents that can lead the EPS to voltage instability. Voltage collapse and considerably loss of the electric supply are the principal consequences of this scenery. In this study, we propose a fast tool for supporting the EPS security, in the context of Voltage Stability (VS). To this end, a fast methodology was developed for contingency analysis. Once the critical contingencies are selected, their criticalities are eliminated through the selection of preventive actions. In this context, two approaches were developed. In the first one, we aim at minimizing eh number of controls by using clustering techniques. In this case, the principal objective is to eliminate the criticality of a contingency. In the second approach, we developed a strategy for obtaining a groups of controls in order to eliminate the criticality of all contingencies. Both approaches are based on a methodology for sensitivity analysis of the VS margin with respect to preventive controls which is also proposed in this thesis. The effectiveness of the tool was corroborated by simulations in a EPS. We found the results satisfactory, since the groups of controls achieved by the first approach represent a minimum set of preventive actions that can be taken to eliminate the criticality of a specific contingency. In the second approach, it was possible to determine a minimum group of controls that eliminate the criticality of all contingencies simultaneously. New fast methodologies for security analysis of the EPS in the context of the VS is considered the main scientific product result of this doctorate. (AU) | |
| FAPESP's process: | 09/05167-5 - A fast method for analysis of contingency and selection in the context of preventive control of voltage stability |
| Grantee: | Moussa Reda Mansour |
| Support Opportunities: | Scholarships in Brazil - Doctorate |