Optimal Responses of Home Energy Management Systems to Aggregator and Utility Requirements

Van Tu Dao, Hideo Ishii, Yasuhiro Hayashi, Yuta Takasawa, Kohei Murakami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

As the growing integration of rooftop solar and batteries in the residential area, home energy usage becomes more flexible and solar-battery systems can offer promising benefits to households. This paper narrates a research work of how home energy management systems maximize profits from buying electricity at a fixed price from utility and selling surplus energy to an aggregator. Appropriate optimization problems are formulated with technical constraints of household devices and from connection requirements including a volt-watt function installed in the inverter of the rooftop solar-battery system. On the day of operation, the energy plan, which has been optimally committed to be sold to an aggregator since the day before, is considered for determining optimal HEMS responses under the actual real-time condition. Simulation results of a Japanese low-voltage system show that a consideration of volt-watt functions when performing optimization helps reduce wasted energy due to possible active power curtailments and improve home profits.

Original languageEnglish
Title of host publicationInternational Conference on Innovative Smart Grid Technologies, ISGT Asia 2018
EditorsQuan Hao, Anurag Sharma
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages616-621
Number of pages6
ISBN (Electronic)9781538642917
DOIs
Publication statusPublished - 2018 Sep 18
Event2018 International Conference on Innovative Smart Grid Technologies, ISGT Asia 2018 - Singapore, Singapore
Duration: 2018 May 222018 May 25

Other

Other2018 International Conference on Innovative Smart Grid Technologies, ISGT Asia 2018
CountrySingapore
CitySingapore
Period18/5/2218/5/25

Keywords

  • Active power curtailment
  • aggregator
  • battery
  • home energy management system
  • rooftop solar
  • smart inverter functions

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering

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  • Cite this

    Dao, V. T., Ishii, H., Hayashi, Y., Takasawa, Y., & Murakami, K. (2018). Optimal Responses of Home Energy Management Systems to Aggregator and Utility Requirements. In Q. Hao, & A. Sharma (Eds.), International Conference on Innovative Smart Grid Technologies, ISGT Asia 2018 (pp. 616-621). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISGT-Asia.2018.8467883