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Practical experiences on PMU-based linear state estimation in distribution grids

: Richter, Marc; Wolter, M.; Naumann, Andre; Komarnicki, Przemyslaw; Trojan, Przemyslaw


Institute of Electrical and Electronics Engineers -IEEE-; Institute of Electrical and Electronics Engineers -IEEE-, Power & Energy Society -PES-:
IEEE Power and Energy Society General Meeting, PESGM 2016 : 17-21 July 2016, Boston, Mass.
Piscataway, NJ: IEEE, 2016
ISBN: 978-1-5090-4168-8
ISBN: 978-1-5090-4169-5
Institute of Electrical and Electronics Engineers, Power and Energy Society (IEEE PES General Meeting) <2016, Boston/Mass.>
Fraunhofer IFF ()

This paper presents the system design and the first practical experiences of a Distribution Area Monitoring System (DAMS) that was practically applied in the German 110 kV network. With regard to the involved components of the larger ICT system, the software architecture - including standardized Smart Grid communication protocols and interfaces - is described. As a main component, a linear state estimator is presented, that uses only phasor measurements to calculate the complex-valued node voltages. Real measurement data provides the necessary input for observing the typical characteristics in distribution systems and for analyzing accuracy and plausibility of the results. A consecutive state assessment is applied in order detect violations of permissible operation limits.