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Control of fuel cell-based electric power system using adaptive sliding mode control and observation techniques

机译:基于自适应滑模控制和观测技术的基于燃料电池的电力系统控制

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摘要

The paper deals with controlling an autonomous electric power system that comprises of a primary source of power supply, Proton Exchange Membrane fuel cell (PEMFC), DC DC boost power converter as a power conditioner, and the ultracapacitor for an auxiliary power supply. Relative degree approach is applied for direct control of the output load voltage as well as the fuel cell and ultracapacitor current in the presence of the model uncertainties. The zero dynamics of the studied electric power system is analyzed and appeared to be stable. The non-minimum phase property of the DC DC boost converter is eliminated by controlling the fuel cell current based on the power balance. The adaptive super-twisting sliding mode observer is employed for identification of the load resistance, which estimated value is used for generating the fuel cell current command profile. The adaptive gain second order (2-SM) super-twisting sliding mode controller is proposed for controlling the current in PEMFC. The conventional Sliding Mode Controllers (SMC) is designed for controlling the output voltage of the converter and the load current of the ultracapacitor. The efficacy and robustness of the proposed decentralized three-fold electric power system controller that consists of two SMCs and one 2-SM adaptive-gain controller are confirmed via computer simulations. (C) 2015 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.
机译:本文涉及控制自主电力系统,该电力系统包括主要电源,质子交换膜燃料电池(PEMFC),作为功率调节器的DC DC升压功率转换器和用于辅助电源的超级电容器。在模型不确定性存在的情况下,相对度方法可用于直接控制输出负载电压以及燃料电池和超级电容器电流。对所研究的电力系统的零动力学进行了分析,并且看起来很稳定。通过基于功率平衡来控制燃料电池电流,可以消除DC DC Boost转换器的非最小相位特性。自适应超扭曲滑模观察器用于识别负载电阻,该估计值用于生成燃料电池电流指令曲线。提出了一种自适应增益二阶(2-SM)超扭曲滑模控制器,用于控制PEMFC中的电流。传统的滑模控制器(SMC)设计用于控制转换器的输出电压和超级电容器的负载电流。通过计算机仿真证实了所提出的由两台SMC和一台2-SM自适应增益控制器组成的分散式三重电力系统控制器的功效和鲁棒性。 (C)2015富兰克林研究所。由Elsevier Ltd.出版。保留所有权利。

著录项

  • 来源
    《Journal of the Franklin Institute》 |2015年第11期|4911-4934|共24页
  • 作者

    Ashok Roshini; Shtessel Yuri;

  • 作者单位

    Univ Alabama, Dept Elect & Comp Engn, Huntsville, AL 35899 USA;

    Univ Alabama, Dept Elect & Comp Engn, Huntsville, AL 35899 USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 入库时间 2022-08-18 02:57:48

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