Smart Energy Supply Strategies For Contemporary Substations
Julia Robert
Nanotech Power Solutions, Silicon Valley, California, USA 1. Introduction The substation power supply system, as a necessary power supply for important power-consuming places such as substations, provides working power for important loads such as control devices, relay protection, communication equipment, and fire protection and security systems. Among them, the battery can provide backup power after the external AC power supply fails, which is an important guarantee for substation monitoring, security, and fire protection[1-2]. In recent years, with the development of the Internet and automation technology, digital and intelligent equipment has been widely used in substations, which has positive significance for improving the reliability of power management[3]. The traditional substation power system is composed of DC part, AC part, UPS, communication system and so on. The design and manufacture of each subsystem to the on-site installation and commissioning is handled by
Abstract
The substation power supply system plays a pivotal role in providing essential power to critical power-consuming facilities, such as substations. It serves as the lifeblood for crucial loads like control devices, relay protection systems, communication equipment, and fire safety systems. Among these, batteries act as a dependable backup power source in the event of external AC power supply failures, thereby serving as a cornerstone for substation monitoring, security, and fire protection [1-2]. In recent years, as the Internet and automation technologies have continued to advance, substations have embraced digital and intelligent equipment, significantly enhancing power management reliability [3]. The conventional substation power system is a conglomerate of DC components, AC systems, UPS devices, and communication systems. The different manufacturers are responsible for subsystem design, fabrication, on-site installation, and commissioning, and their respective experts handle subsequent operations and maintenance [4-5]. However, it has become apparent that this conventional AC-DC integrated power supply approach falls short of meeting the evolving demands of smart grid development. Smart substations are redefining the landscape by unifying the design, installation, configuration, monitoring, and control of the diverse subsystems that are integral to traditional substations [6].