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Control strategy of a drive system in a fuel-cell-and battery-powered electric vehicle based on optimal efficiency

机译:基于最佳效率的燃料电池和电池驱动的电动汽车驱动系统的控制策略

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In this paper a control strategy of a drive system in a Fuel-cell Electric Vehicle is proposed, where the operating range of the Fuel-cell stack is determined from its efficiency curve. The system consists of a PEM Fuel-cell stack, an interleaved boost converter, battery pack connected via a bidirectional buck-boost converter and a brushless DC (BLDC) motor driven by a three phase PWM inverter. Experiments have been carried out to testify the nonlinear V-I characteristic curve of the PEM Fuel-cell system. An additional battery pack is used for reducing the size of the stack and thus the cost, by which regenerative braking is also achieved. Energy management of the two sources is accomplished using two operation modes. Another main objective of this work is to investigate the performance of the proposed drive system at transient response. The system is investigated through simulation using MA TLAB/SIMULINK software.
机译:本文提出了一种燃料电池电动汽车驱动系统的控制策略,其中燃料电池堆的运行范围由其效率曲线确定。该系统包括一个PEM燃料电池堆,一个交错的升压转换器,通过双向降压-升压转换器连接的电池组以及一个由三相PWM逆变器驱动的无刷直流(BLDC)电机。已经进行实验以证明PEM燃料电池系统的非线性V-I特性曲线。附加的电池组用于减小电池组的尺寸并因此减小成本,由此还实现了再生制动。这两种能源的能源管理是通过两种操作模式完成的。这项工作的另一个主要目的是研究所提出的驱动系统在瞬态响应下的性能。使用MA TLAB / SIMULINK软件通过仿真研究了该系统。

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