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首页> 外文期刊>Renewable Power Generation, IET >Hybrid multi-agent-based adaptive control scheme for AC microgrids with increased fault-tolerance needs
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Hybrid multi-agent-based adaptive control scheme for AC microgrids with increased fault-tolerance needs

机译：基于混合多主体的AC微电网自适应控制方案，具有更高的容错需求

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摘要

This paper presents a fault-tolerant secondary and adaptive primary microgrid control scheme using a hybrid multi-agent system (MAS), capable of operating either in a semi-centralised or distributed manner. The proposed scheme includes a droop-based primary level that considers the microgrid energy reserves in production and storage. The secondary level is responsible for: a) the microgrid units' coordination, b) voltage and frequency restoration and c) calculation of the droop/ reversed-droop coefficients. The suggested architecture is arranged upon a group of dedicated asset agents that collect local measurements, take decisions independently and, collaborate in order to achieve more complex control objectives. Additionally, a supervising agent is added to fulfill secondary level objectives. The hybrid MAS can operate either with or without the supervising agent operational, manifesting fast redistribution of the supervising agent tasks. The proposed hybrid scheme is tested in simulation upon two separate physical microgrids using three scenarios. Additionally, a comparison with conventional control methodologies is performed in order to illustrate further the operation of a hybrid approach. Overall, results show that the proposed control framework exhibits unique characteristics regarding reconfigurability and fault-tolerance, while power quality and improved load sharing are ensured even in case of critical component failure.
机译：本文提出了一种使用混合多智能体系统（MAS）的容错次级和自适应初级微电网控制方案，该方案能够以半集中式或分布式方式运行。拟议的方案包括一个基于下垂的初级水平，该水平考虑了生产和存储中的微电网能量储备。二级负责：a）微电网单元的协调，b）电压和频率恢复，以及c）下垂/下垂系数的计算。建议的体系结构安排在一组专用的资产代理上，这些代理收集本地度量值，独立进行决策并进行协作以实现更复杂的控制目标。此外，添加了一个监视代理程序来实现二级目标。混合MAS可以在有或没有监督代理操作的情况下运行，从而表现出对监督代理任务的快速重新分配。在三种情况下，在两个单独的物理微电网上对拟议的混合方案进行了仿真测试。另外，与常规控制方法进行比较以进一步说明混合方法的操作。总体而言，结果表明，所提出的控制框架在重新配置性和容错性方面表现出独特的特性，即使在关键组件发生故障的情况下，也可以确保电能质量和改善的负载共享。

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