Browsing by Author "Barbosa, F. P. Maciel"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
- Combined use of SCADA and PMU measurements for power system state estimator performance enhancementPublication . Vide, Paula S. Castro; Barbosa, F. P. Maciel; Ferreira, Isabel M.State estimator is vital for on-line power system monitoring, analysis and control. With the increasing use of synchronized phasor measurement units (PMU) in power grids, how to utilize phasor measurements to improve the precision of state estimator becomes imperative. In this paper, a state estimator including voltage phasors, injected current phasors and traditional measurements is proposed. 14 IEEE bus system and 30 IEEE bus system are used as test systems and the simulation results demonstrate that the presented state estimation algorithm combining traditional SCADA measurements with PMU (Phasor Measurement Unit) measurements for power system state estimation improves the precision greatly.
- Use of available phasor measurements for system observability: A case studyPublication . Vide, Paula Sofia Pita da Silva e Castro; Barbosa, F. P. Maciel; Ferreira, Isabel M.This paper proposes the use of available PMU measurements for establishing network observability. State estimation is an important EMS application for providing real time, reliable and qualitative information on the system state. The observability analysis is the necessary function of the whole network state estimation.This paper addresses the incorporation of PMU measurements with the purpose of full network observability. The methodology is validated by the results on IEEE 14, 30 and 57 bus test system.