Abstract
With the increase of household electricity consumption and the introduction of distributed new energy sources, more attention has been paid to the issue of optimizing the cost of electricity purchase for household customers. An effective way to deal with these problems is through home energy management system (HEMS). In this paper, a model of home energy management is presented to optimize the home energy mix. The operation of home electricity consumption devices, distributed generation systems, and energy storage devices, as well as the charging and discharging of electric vehicles, are all considered. HEMS is a self‐regulating system that can accommodate fluctuations in tariffs and home electricity consumption. The structure and the optimal scheduling algorithm of HEMS are introduced. The smart grid and demand response, smart home, new energy generation, energy storage, and other related technologies are discussed. Furthermore, the optimal scheduling of power consumption devices and energy sources in the HEMS and future development directions are explained and analyzed. A framework of HEMS is presented on the basis of advanced metering infrastructure (AMI). The framework adopts a local information management terminal as the core of data storage and scheduling in the home. Based on the timely purchase of electricity from the grid and the generation of electricity in combination with PV systems, an optimized simulation model for the scheduling of a new home energy management system is established. In addition, the application prospects of artificial intelligence in the HEMS are overviewed.
Highlights
Home energy management system (HEMS) is an intelligent network control system based on smart grid, smart home, and smart meters [1,2,3]
HEMS can fully interact with the power grid to obtain accurate real-time price, cooperate with generation and load forecasting, perform an intelligent allocation of household energy, optimize the allocation of household load in the time dimension, achieve demand response on the customer side, relieve the pressure on the grid during peak hours, and improve the stability of grid [10]
HEMS is the minimal unit of smart grid, which is a new generation of information technologies such as Internet of Things, cloud computing, mobile Internet, and big data, combined with the household as a carrier to achieve a low-carbon, healthy, intelligent, comfortable, and safe family lifestyle [11, 12]
Summary
Home energy management system (HEMS) is an intelligent network control system based on smart grid, smart home, and smart meters [1,2,3] It integrates power generation, electricity consumption, and energy storage devices into a single system for management and control [4,5,6]. The peak and off-peak tariff mechanism is introduced, which plays a role in guiding customers to adjust the time of electricity consumption [9] It is less flexible and cannot reflect the real relationship between electricity consumption and supply. In addition to a variety of household appliances, there are scholars who investigate the impact of electric vehicles and energy storage devices in the optimization of smart homes, in order to propose a method of household energy that considers real-time control strategies for energy storage devices [15, 16]. The prospects for the application of artificial intelligence in the HEMS are discussed
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