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首页> 外文期刊>Energy Conversion & Management >A design of cascade control system and adaptive load compensator for battery/ultracapacitor hybrid energy storage-based direct current microgrid
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A design of cascade control system and adaptive load compensator for battery/ultracapacitor hybrid energy storage-based direct current microgrid

机译：基于电池/超级电容器混合储能的直流微电网的级联控制系统和自适应负载补偿器的设计

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摘要

A control system, design based on an actively-controlled battery/ultracapacitor hybrid energy storage system suitable for direct current microgrid energy management purposes is presented in this paper. The proposed cascade control system arrangement is based on the superimposed proportional-integral voltage controller designed according to Damping Optimum criterion and a zero-pole canceling feed-forward load compensator aimed at voltage excursion suppression under variable load conditions. The superimposed controller commands the inner battery and ultracapacitor current control loops through a dynamic current reference distribution scheme, wherein the ultracapacitor takes on the highly-dynamic (transient) current demands, and the battery covers for steady-state loads. In order to avoid deep discharges of the ultracapacitor module, it is equipped with an auxiliary state-of-charge controller. Finally, for those applications where load is not measured, an adaptive Kalman filter-based load compensator is proposed and tested. The presented control strategy has been implemented on the low-cost industrial controller unit, and its effectiveness has been verified by means of simulations and experiments for the cases of abrupt load changes and quasi-stochastic load profiles using a downscaled battery/ultracapacitor hardware-in-the-loop experimental setup. (C) 2016 Elsevier Ltd. All rights reserved.
机译：本文提出了一种基于主动控制的电池/超级电容器混合能量存储系统的控制系统，该系统适用于直流微电网能量管理。所提出的级联控制系统布置基于根据阻尼最佳准则设计的叠加比例积分电压控制器和旨在抑制可变负载条件下的电压偏移的零极消除前馈负载补偿器。叠加控制器通过动态电流基准分配方案命令内部电池和超级电容器电流控制回路，其中超级电容器承担高动态（瞬态）电流需求，电池盖用于稳态负载。为了避免超级电容器模块的深度放电，它配备了一个辅助充电状态控制器。最后，对于那些没有测量负载的应用，提出并测试了基于自适应卡尔曼滤波器的负载补偿器。所提出的控制策略已在低成本工业控制器单元上实施，并且其有效性已通过模拟和实验的方法进行了验证，并通过使用缩小规模的电池/超级电容器硬件输入对突然的负载变化和准随机负载情况进行了验证。 -环路实验设置。 （C）2016 Elsevier Ltd.保留所有权利。

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