Robust Stabilization of Load Frequency Control System Under Networked Environment

doi:10.1007/s11633-016-1041-z

CASIA OpenIR > 学术期刊 > Machine Intelligence Research

	Robust Stabilization of Load Frequency Control System Under Networked Environment
	Ashraf Khalil 1; Ji-Hong Wang 2; Omar Mohamed 3
发表期刊	International Journal of Automation and Computing
ISSN	1476-8186
	2017
卷号	14 期号:1 页码:93-105
文章类型	IJAC-IA-2016-01-020.pdf
摘要	The deregulation of the electricity market made the open communication infrastructure an exigent need for future power system. In this scenario dedicated communication links are replaced by shared networks. These shared networks are characterized by random time delay and data loss. The random time delay and data loss may lead to system instability if they are not considered during the controller design stage. Load frequency control systems used to rely on dedicated communication links. To meet future power system challenges these dedicated networks are replaced by open communication links which makes the system stochastic. In this paper, the stochastic stabilization of load frequency control system under networked environment is investigated. The shared network is represented by three states which are governed by Markov chains. A controller synthesis method based on the stochastic stability criteria is presented in the paper. A one-area load frequency control system is chosen as case study. The effectiveness of the proposed method for the controller synthesis is tested through simulation. The derived proportion integration (PI) controller proves to be optimum where it is a compromise between compensating the random time delay e®ects and degrading the system dynamic performance. The range of the PI controller gains that guarantee the stochastic stability is determined. Also the range of the PI controller gains that achieve the robust stochastic stability is determined where the decay rate is used to measure the robustness of the system.
关键词	Load frequency control load frequency control (LFC) Markov chains networked control system robust stabilization.
DOI	10.1007/s11633-016-1041-z
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/42469
专题	学术期刊_Machine Intelligence Research
作者单位	1.Electrical and Electronics Engineering Department, University of Benghazi, Benghazi, Libya 2.School of Engineering, University of Warwick, Coventry, UK 3.King Abdullah II Faculty of Engineering, Princess Sumaya University of Technology, Amman, Jordan
推荐引用方式 GB/T 7714	Ashraf Khalil,Ji-Hong Wang,Omar Mohamed. Robust Stabilization of Load Frequency Control System Under Networked Environment[J]. International Journal of Automation and Computing,2017,14(1):93-105.
APA	Ashraf Khalil,Ji-Hong Wang,&Omar Mohamed.(2017).Robust Stabilization of Load Frequency Control System Under Networked Environment.International Journal of Automation and Computing,14(1),93-105.
MLA	Ashraf Khalil,et al."Robust Stabilization of Load Frequency Control System Under Networked Environment".International Journal of Automation and Computing 14.1(2017):93-105.

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