DC microgrid power coordination based on fuzzy logic control
DC microgrid power coordination based on fuzzy logic control
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DOI：
10.1109/epe.2016.7695530
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发表时间：
2016-10
期刊：
影响因子：
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通讯作者：
Rashid Al Badwawi;W. Issa;T. Mallick;M. Abusara
中科院分区：
文献类型：
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作者：
Rashid Al Badwawi;W. Issa;T. Mallick;M. Abusara
直流微电网的电力协调对于提高多发电机组的运行性能和管理水平具有至关重要的作用。可再生能源（RES）受其可用功率的限制，具有间歇性。基于电池的储能源在充电和放电能力方面存在限制，以避免电池耗尽并将荷电状态（SOC）保持在令人满意的范围内。电池平衡RES和负载之间的功率差异。然而，在SOC非常低的严重情况下，减载至关重要。本文提出了一种模糊控制器（FLC）来协调光伏机组和蓄电池的功率流，以充分利用光伏发电的可用功率来满足负载。它控制PV的输出功率，并保持电池的SOC和充电/放电功率在所需的余量内，而不管负载的变化。在电池无法平衡微电网潮流的情况下，实现了低优先级负荷的减载。用FLC管理多投入多输出系统的简单性是其主要优点。给出了Matlab/Simulink实验结果，验证了所提控制器的性能。
The power coordination in DC microgrids has a vital role in enhancing the performance and management of multi generation units. Renewable Energy Sources (RES) are limited to their available power with intermittent nature. Battery-based energy storage sources have limitations in the charging and discharging capabilities to avoid depleting the battery and preserve the State of Charge (SOC) within its satisfactory limits. The battery balances the power difference between RES and loads. However, in severe cases where the SOC is very low, load shedding is crucial. In this paper, a Fuzzy Logic Controller (FLC) has been proposed to coordinate the power flow of PV unit and battery to satisfy the load by full use of the available PV power. It controls the PV's output power and keeps the SOC and charging / discharging power of the battery within their required margins regardless of the variations in load. Furthermore, load shedding of low priority load has been implemented when the battery couldn't balance the microgrid power flow. Simplicity in managing multi input-multi output system by FLC is the main merit. Matlab/Simulink results are presented to validate the performance of the proposed controller.