Share

Load modulation strategies of residential heat pumps for demand-response programs with different thermal storage options.

Number: pap. 3511

Author(s) : GEORGES E., LEMORT V.

Summary

This research work presents a methodology to assess the potential of load modulation strategies of HVAC systems for demand response programs at different scales. Two different demand response programs are considered: feed-in tariff signals for renewable production load matching and signals from the distribution grid operator for operational planning and congestion management at the distribution level. The resulting control problems are solved using optimal control formulations. First, the strategies are applied to four typical Belgian houses to match on-site PV production. Different thermal storage options are considered: on the one hand, thermal storage in the building envelope and in water tanks for domestic hot water, and, on the other hand, additional water tanks for space heating needs either in a parallel four-pipe or in a parallel two-pipe configuration. According to the type of house and the modulation strategy considered, a ranking of the most suitable storage options is proposed. Secondly, the method is extended to the scale of a distribution feeder with 50% PV penetration rate. Results show that with 20% heat pumps and suitable storage options, the residual load reduction reaches 28% to 73.4%. Upward load modulation in response to grid operator signals shows better performance for short modulation intervals, but can lead to up to 13% additional overconsumption if the chosen thermal storage option is not adapted to the house insulation level.

Available documents

Format PDF

Pages: 10 p.

Available

  • Public price

    20 €

  • Member price*

    15 €

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Load modulation strategies of residential heat pumps for demand-response programs with different thermal storage options.
  • Record ID : 30019263
  • Languages: English
  • Source: 2016 Purdue Conferences. 4th International High Performance Buildings Conference at Purdue.
  • Publication date: 2016/07/11

Links


See other articles from the proceedings (77)
See the conference proceedings

Indexing