| 1. |
- Chow, Joe. H., et al.
(författare)
-
Preliminary synchronized phasor data analysis of disturbance events in the US Eastern Interconnection
- 2009
-
Ingår i: Power Systems Conference and Exposition, 2009. PSCE ’09. IEEE/PES. - : IEEE. - 9781424438105 ; , s. 136-143
-
Konferensbidrag (refereegranskat)abstract
- This paper presents analysis results of synchronized phasor data from 10 disturbance events recorded in the US Eastern Interconnection (EI). The phasor data covers a wide region in the EI, allowing for the study of disturbance propagation, interarea modes, and oscillations in voltages and currents. The analysis is not straightforward because the EI is a meshed system with adequate interarea mode damping. Disturbances involving tripping a single large generator unit produce very short interarea swing responses. Islanding events involving regions at the perimeter, however, provide more prominent responses for analysis.
|
|
| 2. |
- Vanfretti, Luigi, et al.
(författare)
-
A framework for estimation of power systems based on synchronized phasor measurement data
- 2009
-
Ingår i: 2009 IEEE POWER & ENERGY SOCIETY GENERAL MEETING, VOLS 1-8. - : IEEE. - 9781424442409 ; , s. 3271-3276
-
Konferensbidrag (refereegranskat)abstract
- This paper presents a new approach for synchronized phasor measurement-based state estimation, which starts from the buses with synchronized phasor data and enables highly accurate estimation of portions of the power system with connectivity to these phasor data buses. Observability analysis is used to assemble the buses for this Phasor State Estimator (PSE). The state estimation is formulated as an iterative least-squares problem, with bus voltage and line current magnitudes and phases as the estimated variables. An important aspect of this formulation is its ability to correct for constant or random phase biases that may exist in some phasor measurement equipment. Beside being a standalone state estimator, the PSE can enhance the reliability of a conventional state estimator. The PSE methodology is demonstrated for a power transfer path in the New York power system.
|
|
