A master thesis from Aalborg University
Energy Optimisation of Water Distribution Networks: Using a distributed pumping solution for optimal pressure control
Author(s)
Term
4. term
Education
Publication year
2015
Submitted on
2015-06-03
Pages
131 pages
Abstract
This project covers the development of a power optimal control strategy for a water distribu- tion network. It is proposed to replace the pressure reduc- ing valves commonly used to regulate pressure, with pumps, throughout the network. By exploiting the additional freedom for con- trol, obtained by having an over-actuated sys- tem, it is possible to reduce the power con- sumption. The power optimal controller finds the optimal distribution of pressure boost from the pumps, by means of gradient descent, while still main- taining output pressure. Furthermore the controller developed only re- quires knowledge of the distribution networks topology given by a graphical description. It is also designed to use a minimum of commu- nication between the individual pumps within the network. The results shows that the power optimal con- troller slowly reduces the power consumption of the distribution network once the system pressure has reached steady-state, thus fulfill- ing the criteria of the controller.
This project covers the development of a power optimal control strategy for a water distribu- tion network. It is proposed to replace the pressure reduc- ing valves commonly used to regulate pressure, with pumps, throughout the network. By exploiting the additional freedom for con- trol, obtained by having an over-actuated sys- tem, it is possible to reduce the power con- sumption. The power optimal controller finds the optimal distribution of pressure boost from the pumps, by means of gradient descent, while still main- taining output pressure. Furthermore the controller developed only re- quires knowledge of the distribution networks topology given by a graphical description. It is also designed to use a minimum of commu- nication between the individual pumps within the network. The results shows that the power optimal con- troller slowly reduces the power consumption of the distribution network once the system pressure has reached steady-state, thus fulfill- ing the criteria of the controller.
Keywords
Vand ; Optimal ; Regulering ; Pumper ; Energi
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