Optimal and Learning-Based Demand Response Mechanism for Electric Water Heater System

This paper investigates how to develop a learning-based demand response approach for electric water heater in a smart home that can minimize the energy cost of the water heater while meeting the comfort requirements of energy consumers. First, a learning-based, data-driven model of an electric water...

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Main Authors: Bo Lin, Shuhui Li, Yang Xiao
Format: Article
Language:English
Published: MDPI AG 2017-10-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/10/11/1722
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author Bo Lin
Shuhui Li
Yang Xiao
author_facet Bo Lin
Shuhui Li
Yang Xiao
author_sort Bo Lin
collection DOAJ
description This paper investigates how to develop a learning-based demand response approach for electric water heater in a smart home that can minimize the energy cost of the water heater while meeting the comfort requirements of energy consumers. First, a learning-based, data-driven model of an electric water heater is developed by using a nonlinear autoregressive network with external input (NARX) using neural network. The model is updated daily so that it can more accurately capture the actual thermal dynamic characteristics of the water heater especially in real-life conditions. Then, an optimization problem, based on the NARX water heater model, is formulated to optimize energy management of the water heater in a day-ahead, dynamic electricity price framework. A genetic algorithm is proposed in order to solve the optimization problem more efficiently. MATLAB (R2016a) is used to evaluate the proposed learning-based demand response approach through a computational experiment strategy. The proposed approach is compared with conventional method for operation of an electric water heater. Cost saving and benefits of the proposed water heater energy management strategy are explored.
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spelling doaj.art-d3451e6cf8034d1e8f5824c101d5e3632022-12-22T02:55:17ZengMDPI AGEnergies1996-10732017-10-011011172210.3390/en10111722en10111722Optimal and Learning-Based Demand Response Mechanism for Electric Water Heater SystemBo Lin0Shuhui Li1Yang Xiao2Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USADepartment of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USADepartment of Computer Science, The University of Alabama, Tuscaloosa, AL 35487, USAThis paper investigates how to develop a learning-based demand response approach for electric water heater in a smart home that can minimize the energy cost of the water heater while meeting the comfort requirements of energy consumers. First, a learning-based, data-driven model of an electric water heater is developed by using a nonlinear autoregressive network with external input (NARX) using neural network. The model is updated daily so that it can more accurately capture the actual thermal dynamic characteristics of the water heater especially in real-life conditions. Then, an optimization problem, based on the NARX water heater model, is formulated to optimize energy management of the water heater in a day-ahead, dynamic electricity price framework. A genetic algorithm is proposed in order to solve the optimization problem more efficiently. MATLAB (R2016a) is used to evaluate the proposed learning-based demand response approach through a computational experiment strategy. The proposed approach is compared with conventional method for operation of an electric water heater. Cost saving and benefits of the proposed water heater energy management strategy are explored.https://www.mdpi.com/1996-1073/10/11/1722electric water heaterenergy conservationthermodynamic modelingdemand-side managementsmart homes
spellingShingle Bo Lin
Shuhui Li
Yang Xiao
Optimal and Learning-Based Demand Response Mechanism for Electric Water Heater System
Energies
electric water heater
energy conservation
thermodynamic modeling
demand-side management
smart homes
title Optimal and Learning-Based Demand Response Mechanism for Electric Water Heater System
title_full Optimal and Learning-Based Demand Response Mechanism for Electric Water Heater System
title_fullStr Optimal and Learning-Based Demand Response Mechanism for Electric Water Heater System
title_full_unstemmed Optimal and Learning-Based Demand Response Mechanism for Electric Water Heater System
title_short Optimal and Learning-Based Demand Response Mechanism for Electric Water Heater System
title_sort optimal and learning based demand response mechanism for electric water heater system
topic electric water heater
energy conservation
thermodynamic modeling
demand-side management
smart homes
url https://www.mdpi.com/1996-1073/10/11/1722
work_keys_str_mv AT bolin optimalandlearningbaseddemandresponsemechanismforelectricwaterheatersystem
AT shuhuili optimalandlearningbaseddemandresponsemechanismforelectricwaterheatersystem
AT yangxiao optimalandlearningbaseddemandresponsemechanismforelectricwaterheatersystem