DOI:https://doi.org/10.1007/s40565-018-0497-y |
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Regenerative energy management of electric drive based on Lyapunov stability theorem |
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Net amount: 722 |
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Author:
Shahab SABZI1, Mehdi ASADI1, Hassan MOGHBELI1
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Author Affiliation:
1. Department of Electrical Engineering, Arak University of
Technology, Arak, Iran
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Foundation: |
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Abstract: |
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 to deliver the
stored energy to DC grid and to 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. |
Keywords: |
DC/DC converter, Lyapunov stability,
Bidirectional converter, Energy management system
(EMS), Ultra-capacitor, Battery, Switching function |
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Online Time:2019/03/08 |
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