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Economic model predictive control of combined thermal and electric residential building energy systems

Titelangaben

Kuboth, Sebastian ; Heberle, Florian ; König-Haagen, Andreas ; Brüggemann, Dieter:
Economic model predictive control of combined thermal and electric residential building energy systems.
In: Applied Energy. Bd. 240 (2019) . - S. 372-385.
ISSN 1872-9118
DOI: https://doi.org/10.1016/j.apenergy.2019.01.097

Abstract

This article investigates the potential of economic model predictive control of complex residential energy systems with electric coupling to the public grid. The examined system includes a battery energy storage system, photovoltaic power generation, an air-to-water heat pump, thermal energy storage and a building model. The said power generation provides energy for electric loads as well as domestic hot water and space heating. Model predictive control algorithms manage the energy system by nonlinear global optimization. Within this optimization, a time-varying state space model, which is derived from the energy system simulation model, reflects the system dynamics. Owing to the resulting high complexity, two algorithms for distributed model predictive control are developed. In addition, the developed approaches are compared to a common reference control concept as well as centralized model predictive control. For the comparison of annual operational costs, current German energy prices and subsidies are implemented into the economic calculation. Results show an improved performance of the developed approaches with 11.6 cost reduction in comparison to the reference. This is achieved through an increase of the heat pump seasonal performance factor by 3.4, reduced curtailment of electrical photovoltaic energy to 21.5 of the reference value and prevention of auxiliary heater operation. Furthermore, increased photovoltaic self-consumption by the heat pump results in a slight reduction of battery storage operation. In conjunction with monetary and energetic advantages, model predictive control increases the comfort in regards to the violation of minimum limits for the comfort criteria.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: Model predictive control (MPC); Building climate control; Heat pump; Battery storage; Thermal energy storage; Domestic hot water
Institutionen der Universität: Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Technische Thermodynamik und Transportprozesse
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Technische Thermodynamik und Transportprozesse > Lehrstuhl Technische Thermodynamik und Transportprozesse - Univ.-Prof. Dr.-Ing. Dieter Brüggemann
Profilfelder > Emerging Fields > Energieforschung und Energietechnologie
Forschungseinrichtungen > Forschungsstellen > ZET - Zentrum für Energietechnik
Graduierteneinrichtungen > TAO-Graduiertenkolleg Energieautarke Gebäude
Fakultäten
Fakultäten > Fakultät für Ingenieurwissenschaften
Profilfelder
Profilfelder > Emerging Fields
Forschungseinrichtungen
Forschungseinrichtungen > Forschungsstellen
Graduierteneinrichtungen
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 01 Mär 2019 09:24
Letzte Änderung: 26 Okt 2022 11:36
URI: https://eref.uni-bayreuth.de/id/eprint/47654