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首页> 外文期刊>Industrial Informatics, IEEE Transactions on >A Self-Reliant DC Microgrid: Sizing, Control, Adaptive Dynamic Power Management, and Experimental Analysis
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A Self-Reliant DC Microgrid: Sizing, Control, Adaptive Dynamic Power Management, and Experimental Analysis

机译：一个自力更生的直流微电网：尺寸，控制，自适应动态电源管理和实验分析

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摘要

This paper presents an adaptive power management and control for a self-reliant dc microgrid powered by photovoltaic (PV) array and fuel cell stack that is escorted with the supercapacitor- and electrolyzer-based hybrid energy storage device. The prime operational impediments associated with this dc microgrid are the unpredictable variations in the PV generation and load demand, fuel starvation phenomenon of the fuel cell, the time constant associated with the electrolyzer operation, and state-of-charge limitation of the supercapacitor. In this paper, the above-mentioned issues are addressed by employing an adaptive dynamic power management strategy (ADPMS) that supervises the overall power flow in the system. The ADPMS enables the co-existence of high power density and high energy density storage devices to deliver the power flow required by the loads. The expeditious support extended by the supercapacitor helps in swift regulation of the dc-link voltage during unforeseen transient load/source power variations. The electrolyzer-fuel cell combination employed in this system can supplement a battery bank and can equip high energy density and self-reliance to the system. The set-reset flip-flop based fixed frequency current controller is simple and effective in accurately tracking the reference currents established by the ADPMS. The proposed ADPMS along with the control is validated for transient unforeseen load profiles and renewable generation changes via simulation studies and its performance is also validated through an experimental analysis on a laboratory-scale dc microgrid testbed.
机译：本文提出了一种由光伏（PV）阵列和燃料电池堆驱动的自立式dc微电网的自适应电源管理和控制，该微电网由超级电容器和电解器为基础的混合储能设备陪同。与该直流微电网相关的主要操作障碍是光伏发电和负载需求的不可预测的变化，燃料电池的燃料不足现象，与电解器操作相关的时间常数以及超级电容器的荷电状态限制。在本文中，通过采用自适应动态功率管理策略（ADPMS）来监督系统中的总体功率流，解决了上述问题。 ADPMS使高功率密度和高能量密度存储设备并存，可以传递负载所需的功率流。超级电容器提供的快速支持有助于在无法预料的瞬态负载/电源功率变化期间快速调节直流母线电压。该系统中使用的电解器-燃料电池组合可以补充电池组，并可以为系统配备高能量密度和自立性。基于置位触发器的固定频率电流控制器在准确跟踪ADPMS建立的参考电流方面既简单又有效。拟议的ADPMS及其控制通过仿真研究针对瞬态不可预见的负载曲线和可再生发电变化进行了验证，其性能也通过在实验室规模的dc微电网试验台上进行的实验分析得到了验证。

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