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Multi-Objective Optimization Model for Design and Operation of Water Transmission Systems Using a Power Resilience Index for Assessing Hydraulic Reliability

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Abstract

Water Transmission Systems (WTSs) are used to transport large flow over long distances and/or high heads. An optimal design involves evaluation of both cost and reliability objectives. The objective of this paper is to develop a novel approach to reliability-based optimization of WTS with pump stations by linking the optimization model in Non-dominated Sorting Genetic Algorithm (NSGA-II) to a simulation in EPANET2.0. The two objectives considered include minimizing the total cost of the system and maximizing the reliability. A new resilience measure is also developed as a hydraulic reliability measure for pump stations in WTSs based on Best Efficiency Pump (BEP). The present model is applied to a WTS case study in Iran. The results are then presented for the trade-off characteristics between total cost and reliability. The results indicate that 7.6% increase in costs can result in a significant growth in reliability from 0.06 to 0.91. Accordingly, the Power Resilience Index (PRI) can be used as a measure of hydraulic reliability in water transmission systems with pump station.

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Acknowledgments

This research was financially supported by the UNESCO/People’s Republic of China (The Great Wall) Co-Sponsored Fellowship Programme 2016-2017.

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Correspondence to Massoud Tabesh.

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Beygi, S., Tabesh, M. & Liu, S. Multi-Objective Optimization Model for Design and Operation of Water Transmission Systems Using a Power Resilience Index for Assessing Hydraulic Reliability. Water Resour Manage 33, 3433–3447 (2019). https://doi.org/10.1007/s11269-019-02311-x

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  • DOI: https://doi.org/10.1007/s11269-019-02311-x

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