Investigation of Home Energy Management with Advanced Direct Load Control and Optimal Scheduling of Controllable Loads

Kanato Tamashiro,Narayanan Krishnan,Tomonobu Senjyu,Ashraf M Hemeida,Talal Alharbi,Mohammed Elsayed Lotfy,Alexey Mikhaylov

doi:10.3390/en14217314

Abstract

Due to the rapid changes in the energy situation on a global scale, the amount of RES installed using clean renewable energy sources such as Photovoltaic (PV) and Wind-power Generators (WGs) is rapidly increasing. As a result, there has been a great deal of research aimed at promoting the adoption of renewable energy. Research on Demand-side Management (DSM) has also been important in promoting the adoption of RES. However, the massive introduction of PV has changed the shape of the demand curve for electricity, which significantly impacts the operational planning of thermal generators. Therefore, this paper proposes an Advanced Direct Load Control (ADLC) model to temporarily shutdown the electric connection between the power grid and Smart Houses (SHs). The most important feature of the proposed model is that it temporarily shuts down the electric connection with the power grid. The shutdown is performed twice to increase the load demand during daytime hours and reduce the peak load during night-time hours. The proposed model also promotes the self-consumption of the generated power during the shutdown period, which is expected to reduce the operating cost. This paper considers six case studies for SH, and the operational costs and carbon dioxide emissions are compared and discussed. The results show that the SH with ADLC successfully reduces the operating costs and carbon dioxide emissions.

Highlights

There has been growing interest in global environmental issues such as global warming and the depletion of fossil fuels in recent years
This paper proposes an Advanced Direct Load Control (ADLC) model that temporarily shuts down the electric connection between the power grid and the smart house
In rainy and cloudy weather, when solar radiation was low, a part of the increased power consumption due to the Heat Pump (HP) operating was covered by the PV output, and the rest was operated by discharging the storage batteries and purchasing power

Summary

Introduction

There has been growing interest in global environmental issues such as global warming and the depletion of fossil fuels in recent years. The Japanese government has announced its Basic Energy Plan, aiming to reduce carbon dioxide emissions by 46%. More and increase the ratio of zero-emission power sources from 16% in 2016 to 57%. Due to the effects of the East Japan Earthquake in 2010, nuclear power, one of the zero-emission power sources, is not fully functioning. The introduction of Renewable Energy Sources (RES) using clean natural energy such as Photovoltaic (PV) and Wind-power Generators (WGs) is rapidly increasing as an alternative energy source to nuclear power [1]. Many studies have been conducted to promote the introduction of renewable energy sources [2,3]. Further promotion of the introduction of RES is expected in the future.

Results

Discussion

Conclusion