Monitoring of Wide Area Power System Network with Phasor Data Concentrator (PDC)

Abstract

This paper presents the fault detection technique in wide area power system network using Phasor Data Concentrator (PDC). Single line to ground (SLG) fault data of transmission line is processed using the WAMS technology. Phasor Data Concentrator (PDC) is primarily data collecting centres located at the control centre processing unit and is responsible for collecting all the PMUs data that is transmitted over the communication link, which will detect fault in transmission line. This will help the operators in control centre to monitor the health of wide area power system network, and can initiate corrective actions when time is the critical issue. In this paper, the voltage and current phasor information, and other transmission line parameters from 14 IEEE bus system is processed and detects the fault in transmission lines. The proposed fault detection technique in transmission line of wide area power system network is very useful for improving power system reliability and power quality.

A Comprehensive Survey on Phasor Measurement Unit Applications in Distribution Systems

“…Moreover, the accuracy of an FL can be improved by applying synchronized measurements of currents or voltages. Until now, many faults have been detected by PMUs in distribution systems [72][73][74][75][76][77][78]. However, some FL methods use only current or voltage phasors [79,80].…”

“…Moreover, the network model and load data are important for SE. SE requires an absolute accuracy of about 0.0001 pu [73], and requires correction for transducer errors ( Table 5). The corresponding time error requirement is 0.3181 us [73], and the communication requirement delay is expected to be 100 ms [69].…”

“…Therefore, PMUs can be very useful for analyzing power quality issues. For power quality analysis, the expected TVE is 0.5-1% [73].…”

“…For line segment impedance validation, the absolute accuracy of all phasors is a limiting factor, which should be around 0.0001 pu for shorter segments. The expected time error requirement is 0.3181 us [73]. For the model validation of other components, voltage and current phasors with an expected 0.5% TVE are required.…”

“…Imbalanced currents cause imbalanced voltages, which, due to a sensitivity to this result, can lead to power loss, power failure, or equipment lifespan reduction. Equipment, which is based on inverter technology, three-phase motors, and protection equipment such as relays, reclosers, and circuit breakers, is affected by voltage imbalance [73]. Therefore, correct phase identification is essential to avoid disproportionate concentrations of loads, which lead to phase imbalance.…”