Research on control strategy of the tram braking energy recovery system
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Department of Electrical Engineering School of OpticalElectrical and Computer Engineering,University of Shanghai for Science &Technology,Shanghai 200093,China

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TM711;TN274.2

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    Abstract:

    Now that the present tramcar braking method shows out many problems, such as low energy recovery rate, poor braking effect, bad antijamming ability and single recovery way, we studied the braking method, energy recovery, energy transfer and storage, improved present tramcar braking method, redesigned tramcar braking energy recycling system. This system uses super capacitors as energy storage, taking advantage of short charging time and large current discharge of super capacitor, fundamentally overcoming the traditional braking resistor issues like large heat release and low energy efficiency. The recovery energy of this system can provide energy to other tramcars on the same line by DC/DC converter and can also provide energy to other auxiliary systems through DC/AC inverter,which greatly improves the stability, reliability and recovery efficiency of the system. Matlab/Simulink Simulation results show that this system through the recovery of braking energy, improving energy efficiency of the tramcars and load capacity and stability of local power grid. The system has the features of simple operation, long service life and also has a good application and popularization value.

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  • Received:
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  • Online: July 13,2017
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