Reliable placement of synchronized phasor measurements on network branches
- 1 March 2009
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in 2009 IEEE/PES Power Systems Conference and Exposition
Abstract
This paper presents a practical approach to assign synchronized phasor measurements to appropriate network branches in order to observe the entire system. Earlier studies assume that phasor measurement units are capable of monitoring all branch currents incident to the studied substation. This paper relaxes this unrealistic assumption and considers more practical phasor measurement units which can monitor individual lines or transformers. While the paper considers an initially blank measurement set and proposes a method to populate the system branches with phasor measurement units, it can be used to simply extend observability of unobservable systems equipped with conventional metering. Furthermore, the objective of the placement problem is expanded to incorporate the reliability against loss of phasor measurement units or unexpected outage of lines and transformers. Hence, the resulting method provides a comprehensive measurement configuration which not only makes the system observable but maintains observability during such contingencies. Numerical results of applying this method to IEEE test systems are given.Keywords
This publication has 3 references indexed in Scilit:
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- Observability analysis and measurement placement for systems with PMUsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Power system observability with minimal phasor measurement placementIEEE Transactions on Power Systems, 1993