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DY: Fachverband Dynamik und Statistische Physik

DY 8: Physics of Power Grids (joint session DY/SOE)

DY 8.2: Vortrag

Montag, 16. März 2020, 11:45–12:00, ZEU 147

Message Passing for State Estimation of Power Grids — •Tim Ritmeester and Hildegard Meyer-Ortmanns — Jacobs University, Bremen

The method of message passing is known from statistical physics and computer science. Here we use it to estimate the state of power grids in terms of the generator production and power flow, based on redundant error-prone measurements. We illustrate the method on the IEEE300-grid, and show that it outperforms standard least-squares approaches if the influence from distant nodes matters. We perform our analysis in this regime and show under what circumstances missing data can reliably be retrieved and how placement of modern measurement devices such as PMUs (Phasor Measurement Units) affects the accuracy of the estimate.