“20th PSCC 2018 papers submission and review platform

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A two-step distribution system state estimator with grid constraints and mixed measurements

In this paper we consider the problem of State Estimation (SE) in large-scale, 3-phase coupled, unbalanced distribution systems. More specifically, we address the problem of including mixed real-time measurements, synchronized and unsynchronized, from phasor measurement units and smart meters, into existing SE solutions. We propose a computationally efficient two-step method to update a prior solution using the measurements, while taking into account physical constraints caused by zero-injection buses. We test the method on a benchmark test feeder and show the effectiveness of the approach.


Miguel Picallo Cruz    
Delft University of Technology

Adolfo Anta    
Austrian Insitute of Technology

Bart De Schutter    
Delft University of Technology

Ara Panosyan    
general electric global research


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