«Automation and Informatization of the fuel and energy complex»

A problem and methods of optimal control of operational modes of autonomous water supply systems

UDC: 519.857:628.12
DOI: -

Authors:

¹ Melentiev Energy Systems Institute SB RAS, Irkutsk, Russia

Keywords: dynamic optimization, pumping station, pumps combination, water supply systems, modes change trajectory, energy efficiency

Annotation:

The authors of the article formulate the problem of dynamic two-criteria optimization of pumping stations operational modes of water supply systems. The dynamics of modes of the water supply network operation is associated with the variability of water consumption and requires continuous control over pumping stations operation. The article contains information that there are a huge number of options for turning on the pumps in a daily context. Two of the most important optimization criteria are considered: minimum pump switching and minimum total energy consumption. An algorithm is proposed for searching a trajectory for changing the combinations of switching on pumping units at a given time interval, which ensures a minimum number of switchings. It is shown that provision of a given number of switchings requires selecting a trajectory for changing combinations with minimum energy consumption. In addition to the optimal solution, the algorithm allows forming a set of feasible solutions and provides the user with the opportunity to choose a compromise solution depending on a specific situation. A software implementation of the proposed algorithm in the form of a computing module for the "Angara-VS" information and computing complex has been completed. Testing the algorithm on the example of a real water supply system proved high computational efficiency.

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