Internet of things-based smart residential building energy management system for a grid-connected solar photovoltaic-powered DC residential building,International Journal of Energy Research

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Internet of things-based smart residential building energy management system for a grid-connected solar photovoltaic-powered DC residential building
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2021-09-14 , DOI: 10.1002/er.7264
Naga Devi Chinnathambi ₁ , Kamaraj Nagappan ₂ , Charles Raja Samuel ₂ , Karthik Tamilarasu ₂

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The intermittent nature of photovoltaic (PV), energy conversion losses, appliance compatibility, and load dynamics pose serious challenges to PV-based DC power distribution system in residential buildings. This article proposes a holistic approach to develop a new smart residential building energy management system using internet of things (IoT)-based multifunction compatible relaying system. The proposed system monitors the loads and provides uninterruptible power supply with minimum energy conversion losses. It achieves best operating load configuration, load prioritization in various modes, and demand-side management (DSM). IoT-based multifunction compatible relaying dystem is embedded with Information and Communication Technology-enabled PZEM module, smart relays, and appliance status monitoring devices. The proposed scheme has been implemented in a DC residential building located at Madurai, Tamil Nadu, India, with 1.5 kW PV system. The results are compared in four scenarios. The experimental results prove that the losses are minimized by 18% ensuring uninterrupted power supply. The implementation of DSM further reduces the losses by 5%. The appliances can be monitored through Grafana based in home touch screen.

中文翻译：

基于物联网的太阳能光伏并网直流住宅楼智能住宅楼能源管理系统

光伏 (PV) 的间歇性、能量转换损耗、设备兼容性和负载动态对住宅建筑中基于光伏的直流配电系统提出了严峻挑战。本文提出了一种使用基于物联网 (IoT) 的多功能兼容中继系统开发新型智能住宅建筑能源管理系统的整体方法。所提出的系统监控负载并提供具有最小能量转换损失的不间断电源。它实现了最佳运行负载配置、各种模式下的负载优先级和需求侧管理 (DSM)。基于物联网的多功能兼容继电器系统嵌入了支持信息和通信技术的 PZEM 模块、智能继电器和电器状态监控设备。提议的方案已在位于印度泰米尔纳德邦马杜赖的一座直流住宅建筑中实施，该建筑拥有 1.5 千瓦的光伏系统。结果在四种情况下进行了比较。实验结果证明，在保证不间断供电的情况下，损耗最小化了18%。DSM 的实施进一步降低了 5% 的损失。这些电器可以通过基于家庭触摸屏的 Grafana 进行监控。

更新日期：2021-09-14

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