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Cooperative Control of Distributed Energy Storage Systems in a Microgrid

机译:微电网中分布式储能系统的协同控制

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Energy storage systems (ESSs) are often proposed to support the frequency control in microgrid systems. Due to the intermittency of the renewable generation and constantly changing load demand, the charging/discharging of various ESSs in an autonomous microgrid needs to be properly coordinated to ensure the supply-demand balance. Recent research has discovered that the charging/discharging efficiency of ESSs has remarkable dependence on the charging/discharging rate and state-of-charge of the ESS. This paper proposes a distributed cooperative control strategy for coordinating the ESSs to maintain the supply-demand balance and minimize the total power loss associated with charging/discharging inefficiency. The effectiveness of the proposed approach is validated by simulation results.
机译:通常提出能量存储系统(ESS)以支持微电网系统中的频率控制。由于可再生能源的间歇性和不断变化的负荷需求,需要适当协调自治微电网中各种ESS的充放电,以确保供需平衡。最近的研究发现,ESS的充电/放电效率对ESS的充电/放电速率和充电状态有显着的依赖性。本文提出了一种分布式协同控制策略,用于协调ESS,以维持供需平衡并最大程度地减少与充放电效率低下相关的总功率损耗。仿真结果验证了该方法的有效性。

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