Regenerative energy management of electric drive based on Lyapunov stability theorem

Regenerative energy management of electric drive

based on Lyapunov stability theorem

作者：Shahab SABZI[1];Mehdi ASADI[1];Hassan MOGHBELI[1]; 作者机构：[1]Department of Electrical Engineering,Arak University of Technology,Arak,Iran;[1]Department of Electrical Engineering,Arak University of Technology,Arak,Iran;[1]Department of Electrical Engineering,Arak University of Technology,Arak,Iran; 来源：现代电力系统与清洁能源学报(英文) ISSN：2196-5625 年：2024 卷：000 期：002

页码：P.321-328 页数：8

中图分类：TM73 正文语种：CHI

关键词：DC/DC converter;Lyapunov stability;Bidirectional converter;Energy management system(EMS);Ultra-capacitor;Battery;Switching function

摘要：In recent years, urban rail systems have developed drastically. In these systems, when induction electrical machine suddenly brakes, a great package of energy is produced. This package of energy can be stored in energy storage devices such as battery, ultra-capacitor and flywheel. In this paper, an electrical topology is proposed to absorb regenerative braking energy and to store it in ultracapacitor and battery.Ultra-capacitor can deliver the stored energy to DC grid and

charge the battery for auxiliary applications such as lighting and cooling systems The proposed system is modeled based on large signal averaged modeling, which leads to the simplicity of calculations. The control system is based on Lyapunov stability theorem which

guarantees system stability. Also, an energy management algorithm is proposed to control energy under braking and steady-state conditions. Finally,the simulation results validate the effectiveness of the proposed control and energy management system.