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首页> 外文期刊>Environmental Science & Technology >High Performance Monolithic Power Management System with Dynamic Maximum Power Point Tracking for Microbial Fuel Cells
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High Performance Monolithic Power Management System with Dynamic Maximum Power Point Tracking for Microbial Fuel Cells

机译：具有动态最大功率点跟踪功能的高性能单片电源管理系统，用于微生物燃料电池

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摘要

Microbial fuel cell (MFC) that can directly generate electricity from organic waste or biomass is a promising renewable and clean technology. However, low power and low voltage output of MFCs typically do not allow directly operating most electrical applications, whether it is supplementing electricity to wastewater treatment plants or for powering autonomous wireless sensor networks. Power management systems (PMSs) can overcome this limitation by boosting the MFC output voltage and managing the power for maximum efficiency. We present a monolithic low-power-consuming PMS integrated circuit (IC) chip capable of dynamic maximum power point tracking (MPPT) to maximize the extracted power from MFCs, regardless of the power and voltage fluctuations from MFCs over time. The proposed PMS continuously detects the maximum power point (MPP) of the MFC and matches the load impedance of the PMS for maximum efficiency. The system also operates autonomously by directly drawing power from the MFC itself without any external power. The overall system efficiency, defined as the ratio between input energy from the MFC and output energy stored into the supercapacitor of the PMS, was 30%. As a demonstration, the PMS connected to a 240 mL two-chamber MFC (generating 0.4 V and 512 μW at MPP) successfully powered a wireless temperature sensor that requires a voltage of 2.5 V and consumes power of 85 mW each time it transmit the sensor data, and successfully transmitted a sensor reading every 7.5 min. The PMS also efficiently managed the power output of a lower-power producing MFC, demonstrating that the PMS works efficiently at various MFC power output level.
机译：可以直接从有机废物或生物质发电的微生物燃料电池（MFC）是一种很有前途的可再生清洁技术。但是，MFC的低功率和低压输出通常不允许直接运行大多数电气应用程序，无论是向废水处理厂补充电力还是为自主无线传感器网络供电。电源管理系统（PMS）可以通过提高MFC输出电压并管理电源以实现最大效率来克服此限制。我们提出了一种单片低功耗PMS集成电路（IC）芯片，该芯片能够进行动态最大功率点跟踪（MPPT），以最大化从MFC提取的功率，而不管MFC的功率和电压随时间的波动如何。建议的PMS连续检测MFC的最大功率点（MPP），并与PMS的负载阻抗匹配，以实现最大效率。该系统还可以通过直接从MFC本身获取电源而无需任何外部电源来自主运行。整个系统效率（定义为MFC的输入能量与存储在PMS超级电容器中的输出能量之比）为30％。作为演示，连接到240 mL两腔MFC（在MPP处产生0.4 V和512μW）的PMS成功地为无线温度传感器供电，该无线温度传感器需要2.5 V电压，每次发送传感器时消耗的功率为85 mW数据，并且每7.5分钟成功发送一次传感器读数。 PMS还有效地管理了生产功率较低的MFC的功率输出，表明PMS在各种MFC功率输出水平下均能有效工作。

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  • 来源
    《Environmental Science & Technology》 |2014年第23期|13992-13999|共8页
  • 作者

    Celal Erbay; Salvador Carreon-Bautista; Edgar Sanchez-Sinencio; Arum Han;

  • 作者单位

    Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77843, United States;

    Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77843, United States;

    Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77843, United States;

    Department of Electrical and Computer Engineering, Texas A&M University, College Station, Texas 77843, United States,Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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