VOLTAGE COLLAPSE AND CONTROL ACTIONS: EFFECTS AND LIMITATIONS |
| |
| Authors: | A C ZAMBRONI DE SOUZA NUNO H M N BRITO |
| |
| Affiliation: | 1. Group de Engenharia de Sistemas-GESis Escola Federal de Engenharia de Itajubá;2. -EFEI , Instituto de Engenharia Elétrica , CP 50, Itajubá, MG, CEP 37500-000, Brazil;3. Centrais Elétricas do Norte do Brasil-ELETRONORTE , SCN Q.6 BI.C s.1211 ( Ed. Venancio 3000), Brasilia, DF, CEP: 70718-900, Brazil |
| |
| Abstract: | ABSTRACT This paper focuses on control actions determination for voltage collapse prevention. Sensitivity matrices are proposed based on the knowledge of the critical bus. By critical bus one means that bus whose state variables vary at most at the voltage collapse point. A tangent vector is used to identify the critical bus, and its behavior as a function of load increase is also investigated and compared with other indices previously proposed. It is shown that generator control actions may not work to increase voltage collapse margin, whereas local control actions may produce better results. The tests are carried out in the IEEE-300 bus test system, with and without reactive power limits consideration. |
| |
| Keywords: | |
|
|
