State Estimation in Water Distribution Networks Using Graph-Theoretic Reduction Strategy
Publication: Journal of Water Resources Planning and Management
Volume 134, Issue 5
Abstract
Steady state analysis of flows and pressures in a water distribution network is a major concern for hydraulic engineers involved in the monitoring and control of water distribution systems. Most of the hydraulic network solution strategies currently available are meant for obtaining flows/pressures given a minimum number of measurements. If more measurements than the minimum required are available, then the redundant measurements can be exploited to obtain a better estimate of the state of the network, taking into account noise in these measurements. In this paper, a state estimation technique for well instrumented water distribution networks is described. The proposed method uses graph-theoretic concepts to reduce the dimensionality of the problem and thereby achieves significant computational efficiency. Applicability of the proposed state estimation procedure is demonstrated on realistic urban water distribution networks. It is also shown that the proposed method can be used for state estimation even when some of the demands are not measured.
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Information
Published In
Journal of Water Resources Planning and Management
Volume 134 • Issue 5 • September 2008
Pages: 395 - 403
Copyright
© 2008 ASCE.
History
Received: Jan 17, 2007
Accepted: Nov 7, 2007
Published online: Sep 1, 2008
Published in print: Sep 2008
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