论文摘要
Remote and regional areas are usually supplied by isolated and self-sufficient electricity systems, which are called as microgrids（MGs）. To reduce the overall cost of electricity production, MGs rely on non-dispatchable renewable sources. Emergencies such as overloading or excessive generation by renewable sources can result in a substantial voltage or frequency deviation in MGs. This paper presents a supervisory controller for such emergencies. The key idea is to remedy the emergencies by optimal internal or external support. A multi-level controller with soft, intermedial and hard actions is proposed. The soft actions include the adjustment of the droop parameters of the sources and the controlling of the charge/discharge of energy storages. The intermedial action is exchanging power with neighboring MGs, which is highly probable in large remote areas. As the last remedying resort, curtailing loads or renewable sources are assumed as hard actions.The proposed controller employs an optimization technique consisting of certain objectives such as reducing power loss in the tie-lines amongst MGs and the dependency of an MG to other MGs, as well as enhancing the contribution of renewable sources in electricity generation.Minimization of the fuel consumption and emissions of conventional generators, along with frequency and voltage deviation, is the other desired objectives. The performance of the proposal is evaluated by several numerical analyses in MATLAB?.
论文目录
文章来源
类型: 期刊论文
作者: Munira BATOOL,Farhad SHAHNIA,Syed M.ISLAM
来源: Journal of Modern Power Systems and Clean Energy 2019年05期
年度: 2019
分类: 工程科技Ⅱ辑
专业: 电力工业
单位: School of Electrical Engineering, Computing and Mathematical Sciences, Curtin University,School of Engineering and Information Technology,Murdoch University,School of Science, Engineering and Information Technology,Federation University
分类号: TM73
页码: 1210-1228
总页数: 19
文件大小: 3189K
下载量: 3
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