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Model-based flexibility assessment of a residential heat pump pool
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.
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2017 (English)In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 118, 853-864 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents and demonstrates a methodology to explore the flexibility of a heat pump pool. Three points are in the focus of this work: First the procedure to model a pool of residential heat pump systems. Second the study of the response of a large number of heat pumps when the Smart-Grid-Ready interface is used for direct load control. Third a general assessment of flexibility of a pool of heat pump systems. The presented pool model accounts for the diversity in space heating and domestic hot water demands, the types of heat source and heat distribution systems used and system sizing procedures. The model is validated using field test data. Flexibility is identified by sending trigger signals to a pool of 284 SG-Ready heat pumps and evaluating the response. Flexibility is characterized by maximum power, shiftable energy and regeneration time. Results show that flexibility is highly dependent on the ambient temperature and the use of an electric back-up heater. It is found that using SG-Ready-like signals offers significantly higher flexibility than just switching off heat pumps, as it is mostly done today.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 118, 853-864 p.
Keyword [en]
Demand side management, Flexibility, Heat pumps, Pooling, Smart grid, Thermal storage, Digital storage, Electric load management, Electric power transmission networks, Electric utilities, Heat storage, Housing, Lakes, Pumps, Smart power grids, Space heating, Heat pump systems, assessment method, control system, demand-side management, heat source, model validation, pump, storage, thermal power
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-202163DOI: 10.1016/j.energy.2016.10.111ISI: 000395048900073Scopus ID: 2-s2.0-85006087951OAI: oai:DiVA.org:kth-202163DiVA: diva2:1079299
Note

QC 20170308

Available from: 2017-03-08 Created: 2017-03-08 Last updated: 2017-04-07Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf