Intensive quadratic programming approach for home energy management systems with power utility requirements

V. T. Dao, Hideo Ishii, Y. Takenobu, S. Yoshizawa, Yasuhiro Hayashi

Research output: Contribution to journalArticle

Abstract

This paper proposes a model of a home energy management system (HEMS) to meet utility requirements while maximizing home profit. It contributes to intensify the flattening effects on the exchanging power pattern with a constraint of a fair profit reduction among households. The proposed method first uses a normal mixed-integer linear programming approach to find out the highest profit a household can get under a condition of a generous power limitation. It is highly possible that the resulted power aggregated from numerous homes may negatively affect power system operation such as violating voltage limits and overloading transformers. Based on that highest profit, the utility proposes the same percentage number of profit reduction for all households. Then, each HEMS performs an intensive mixed-integer quadratic programming optimization to flatten the selling and buying profiles whilst constraining the home profit reduction to the percentage set by the utility. A simulation shows that the peak power demand at the substation transformer would reduce about 44% if each household suffered a reduction of just 10% of the highest possible home profit. Since the flattening effects are improved if increasing the home profit reduction, our method is a basis for the utility to determine a compensation or alternative incentives to shave the peak-load and flatten the demand curve.

Original languageEnglish
Article number105473
JournalInternational Journal of Electrical Power and Energy Systems
Volume115
DOIs
Publication statusPublished - 2020 Feb 1

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Energy management systems
Quadratic programming
Profitability
Transformer substations
Linear programming
Sales
Electric potential

Keywords

  • Home Energy Management System
  • Peak-load shaving
  • Rooftop solar
  • Smart home
  • Smart household

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

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