Parameter-Less Remote Real-Time Control for the Adjustment of Pressure in Water Distribution Systems
Publication: Journal of Water Resources Planning and Management
Volume 143, Issue 9
Abstract
Reducing pressure in a water distribution system leads to a decrease in water leakage, decreased cracks in pipes, and consumption decreases. Pressure management includes an advanced type called remote real-time control. Here pressure control valves are controlled in real time in such a way as to provide set optimal pressures mostly at remote consumer locations. A hydraulic valve is expected to minimize problems with transients, although the study also applies to other valves. The control is done by using a controller that typically depends on tunable parameters, which are laborious to determine. A parameter-less controller is simpler because there are no parameters to tune. Such an existing P-controller, based on the flow in a pressure control valve being known, is enhanced from assuming constant flow to be valid for variable flow. This novel parameter-less controller performs significantly better than the former P-controller. Several recently proposed controllers, which were studied numerically, are compared: two parameter-less controllers, and two parameter-dependent controllers. The new parameter-less controller performs either better or worse than the most optimally tuned parameter-dependent controllers.
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Published In
Journal of Water Resources Planning and Management
Volume 143 • Issue 9 • September 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: May 30, 2016
Accepted: Mar 15, 2017
Published online: Jun 22, 2017
Published in print: Sep 1, 2017
Discussion open until: Nov 22, 2017
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