Improving System Availability using Overlapping Decomposition-Based

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Presentation transcript:

Improving System Availability using Overlapping Decomposition-Based Robust Control Dr. Haris M. Khalid Assistant Professor, Department of Electrical and Electronics Engineering, Sharjah Higher Colleges of Technology, UAE, www.harismkhalid.com

Abstract High availability is always expected for the continuation of operations in a plant. However, this objective is unable to attain due to unplanned breakdowns. This paper works on improving the availability of system by accurately handling the fault information. This was made possible by proposing a subsystem-based robust control. The overlapping decomposition was employed to tackle the variations independently for each state. The stability of the system was proved further using Lyapunov stability criteria. Performance evaluation was then conducted on an interconnected continuous time stirred tank reactor (CSTR) with recycle. The proposed scheme effectively controlled the faults to avoid costly failures.

The Bhopal Disaster

Water Leakage in Jeddah City In Jeddah city, there is a huge problem of water leakage [1]. According to an estimate, if 100 liters of water is supplied to the consumers, only 40 liters is being used, and 60 liters is lost due to leakage problems in their water pipeline network system. References [1] Arab News: Sunday, November 02, 2008. Vol. XXXIII. No.337.

What is the Reason of Choosing this Topic ? Huge Concerns in industry from the perspective of plant availability, Fault Diagnosis and Cyber-Security ? H. M. Khalid, and J. C.-H. Peng, `A Bayesian Algorithm to Enhance the Resilience of WAMS Applications Against Cyber Attacks’, IEEE Transactions on Smart Grid, Special Issue – Theory of Complex Systems with Applications to Smart Grid Operations, vol. 7(4), pp. 2026-2037, March 2016. H. M. Khalid, and J. C.-H. Peng, `Immunity Towards Data-Injection Attacks Using Track Fusion-Based Model Prediction’, IEEE Transactions on Smart Grid, vol. 8(2), pp. 697-707, March 2017. Ahmed S. Musleh, H. M. Khalid, S. M. Muyeen, and Ahmed Al-Durra, `A Prediction Algorithm to Enhance Grid Resilience towards Cyber Attacks in WAMCS Applications’, IEEE Systems Journal, In Press, Nov. 2017. www.harismkhalid.com

Experimental Setup of Coupled Tank System Block Diagram of Coupled Tank System

Power and Water Desalination Plant

Implementation results on leakage fault profiles at different iterations

Implementation results on actuator fault profiles at different iterations

Questions & Suggestions Email: harism.khalid@yahoo.com Website: www.harismkhalid.com