DC-based smart PV-powered home energy management system based on voltage matching and RF module

Area of Science:

• Electrical Engineering
• Renewable Energy Systems
• Home Automation

Background:

• Energy monitoring is crucial for assessing system efficiency in homes and offices.
• Developing applications for energy saving via graphical user interfaces (GUI) on PCs or smartphones is a growing area.
• DC-distribution environments offer potential for efficient energy management.

Purpose of the Study:

• To design and implement a prototype of a wireless, photovoltaic (PV)-powered home energy management system.
• To enable remote monitoring of household appliances' energy consumption and power quality within a DC-distribution setup.
• To achieve low power consumption through an integrated, component-efficient framework.

Main Methods:

• The system utilizes XBee Radio Frequency (RF) modules for data acquisition and communication.
• It incorporates a solar charge controller and solar-battery-load matching layers for efficient power management.
• Six analogue channels are employed for real-time monitoring of voltage, current, and temperature at a sampling frequency of 11-123 Hz.

Main Results:

• The developed prototype successfully validates the DC voltage matching concept.
• The system provides accurate and precise real-time energy consumption data.
• Low power consumption was achieved due to the streamlined design and limited components.

Conclusions:

• The wireless PV-powered home energy management system is effective for monitoring energy usage in DC-distribution environments.
• The prototype demonstrates the feasibility of accurate and precise energy data collection for potential energy-saving applications.
• The system's design offers a low-power, efficient solution for smart home energy management.