Conference article

Coupling Power System Dynamics and Building Dynamics to Enabling Building-to-Grid Integration

Yangyang Fu
Department of Civil, Environmental and Architectural Engineering, University of Colorado Boulder, Boulder, CO, USA

Sen Huang
Pacific Northwest National Laboratory, Richland, WA, USA

Draguna Vrabie
Pacific Northwest National Laboratory, Richland, WA, USA

Wangda Zuo
Department of Civil, Environmental and Architectural Engineering, University of Colorado Boulder, Boulder, CO, USA

Download articlehttp://dx.doi.org/10.3384/ecp19157561

Published in: Proceedings of the 13th International Modelica Conference, Regensburg, Germany, March 4–6, 2019

Linköping Electronic Conference Proceedings 157:57, p. 6

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Published: 2019-02-01

ISBN: 978-91-7685-122-7

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

The interactions between power system dynamics and building dynamics are usually ignored or over-simplified in existing power system and building modeling and simulation tools, which limits how system modeling can support Building-to-Grid integration. This paper discusses a new approach to consider those interactions by modeling motor-driven building devices or systems. The motordriven model is based on simplified mechanical rotation equations and allows us to study the coupling relationship between frequency/voltage in the power system and motor-driven device operation. This model is validated by performing one proof-of-concept case study with Modelica. The simulation results suggest that the proposed model can yield better representations of these interactions than the existing simplified models, especially the ones with the fast transient dynamics.

Keywords

Building-to-Grid Integration, Motor, Coupling Simulation

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