A Health Management Scheme for Urban Rail Transit Signaling System Power Supply Incorporating Lithium Battery Management

Abstract

Objective To meet the reliability, maintainability, and safety requirements of the power supply for urban rail transit signaling system, and to enhance the stability of the signaling system power supply, it is necessary to incorporate lithium battery management in studying SPHM (signaling system power supply health management) scheme. Method With an introduction to the overall architecture of SPHM scheme, the architecture, functions, and functionality implementation of SPHM and lithium battery management systems are described respectively, and the interaction between them is elaborated. Result & Conclusion The SPHM system can monitor the real-time signaling power supply status, evaluate the health of various components, and send predictive alarms. The increase of signaling system power will lead to an increased demand for efficient backup energy storage. The lithium battery management system monitors the charging and discharging of voltage, current and temperature of the battery, implements protective measures, and estimates the SOC (state of charge) and lifespan using mathematical methods. The interaction between the two systems can effectively enhance the overall stability and safety of the signaling system power supply.

Keywords

• urban rail transit
• signaling system power supply
• power health management
• battery management system