Advances in the Co-Simulation of Detailed Electrical and Whole-Building Energy Performance
Author:
Frank Stephen1ORCID, Ball Brian1ORCID, Gerber Daniel L.2ORCID, Cu Khanh1ORCID, Othee Avpreet3ORCID, Shackelford Jordan2ORCID, Ghatpande Omkar1ORCID, Brown Richard2ORCID, Cale James3ORCID
Affiliation:
1. National Renewable Energy Laboratory, Golden, CO 80401, USA 2. Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA 3. Department of Systems Engineering, Colorado State University, Fort Collins, CO 80523, USA
Abstract
This article describes recent co-simulation advances for the simultaneous modeling of detailed building electrical distribution systems and whole-building energy performance. The co-simulation architecture combines the EnergyPlus® engine for whole-building energy modeling with a new Modelica library for building an electrical distribution system model that is based on harmonic power flow. This new library allows for a higher-fidelity modeling of electrical power flows and losses within buildings than is available with current building electrical modeling software. We demonstrate the feasibility of the architecture by modeling a simple, two-zone thermal chamber with internal power electronics converters and resistive loads, and we validate the model using experimental data. The proposed co-simulation capability significantly expands the capabilities of building electrical distribution system models in the context of whole-building energy modeling, thus enabling more complex analyses than would have been possible with individual building performance simulation tools that are used to date.
Funder
U.S. Department of Energy Lawrence Berkeley National Laboratory DOE Office of Energy Efficiency and Renewable Energy Building Technologies Office Emerging Technologies Program
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
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