Regenerative energy management of electric drive based on Lyapunov stability theorem

• 作者: Hassan MOGHBELI Mehdi ASADI Shahab SABZI
• 来源期刊: 现代电力系统与清洁能源学报(英文)
• 学科: 工学
• 关键词: DC/DC CONVERTER LYAPUNOV stability BIDIRECTIONAL CONVERTER Energy management system(EMS) ULTRA-CAPACITOR Battery Switching function
• 年，卷（期）: 2019,（2）
• 页码范围: 321-328
• 页数: 8页
• 分类号: TM73

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.