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Analysis of generalized parallel-series ultracapacitor shift circuits for energy storage systems

机译：储能系统通用并联超级电容器移位电路分析

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摘要

Ultracapacitors have numerous advantages including a remarkably high energy density as compared to conventional capacitors, long life cycle, temperature stability, and require no maintenance, which make them a good candidate to replace batteries as energy storage devices in renewable energy applications. However, ultracapacitors, just like conventional capacitors, inevitably suffer from constant voltage drop during discharging, which may limit their energy utilization, increase the voltage ripple of the DC bus across which the capacitors are connected and consequently increase the VA stresses of the subsequent converter stage. To alleviate the above limitations, parallel-series ultracapacitor shift circuits are employed to improve the energy utilization and minimize the DC bus voltage ripple. Two generalized parallel-series ultracapacitor shift circuits are presented and analyzed, and some design considerations and optimization methods are discussed.
机译：超级电容器具有许多优势，包括与常规电容器相比具有显着高的能量密度，寿命长，温度稳定且无需维护，这使其成为在可再生能源应用中替代电池作为储能设备的良好候选者。但是，就像常规电容器一样，超级电容器在放电过程中不可避免地会遭受恒定的电压降，这可能会限制其能量利用，增加电容器所连接的DC总线的电压纹波，从而增加后续转换器级的VA应力。 。为了减轻上述限制，采用了并联式超级电容器移位电路来提高能量利用率并最小化直流总线电压纹波。给出并分析了两种通用的并联超级电容器移位电路，并讨论了一些设计注意事项和优化方法。

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  • 来源
    《Renewable energy》 |2011年第10期|p.2599-2604|共6页
  • 作者

    Xiang Fang; Nasser Kutkut; John Shen; Issa Batarseh;

  • 作者单位

    Florida Energy System Consortium of University of Central Florida, 220 Research Pkwy Suite 226, Orlando, FL 32826. USA;

    Florida Energy System Consortium of University of Central Florida, 220 Research Pkwy Suite 226, Orlando, FL 32826. USA;

    School of Electrical Engineering and Computer Science, University of Central Florida, Orlando, FL 3826, USA;

    School of Electrical Engineering and Computer Science, University of Central Florida, Orlando, FL 3826, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    energy storage system; ultracapacitor; shift circuits;

    机译：储能系统;超级电容器;移位电路;

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