All seminars are held at the Department of Automatic Control, in the seminar room M:2112B on the second floor in the M-building, unless stated otherwise.
Licentiate Defense at Automatic Control: Felix Agner
Place: Lecture Hall A:C in the A-building, LTH and Zoom.
Contact: anders [dot] rantzer [at] control [dot] lth [dot] se
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Felix Agner is defending his Licentiate thesis at the Department of Automatic Control.
When: Thursday March 30th, at 10:15
Where Lecture Hall A:C in the A-building, LTH
LU Zoom: https://lu-se.zoom.us/j/63896464783
Author: Felix Agner, Lund University
Advisor: Professor Anders Rantzer, Lund University
Opponent Associate Professor Khalid Atta, Luleå University of Technology
Examiner: Associate Professor Emma Tegling, Lund University
Title: On Hydraulic Constraints in Control of District Heating Systems
District heating systems make an important puzzle piece in the energy system of both today and tomorrow. When designing, simulating and controlling these systems, hydraulics play a vital role. The pressure generated by pumps has to drive sufficient flow throughout the system to satisfy the requirements of customers. Ensuring that the system is sufficiently pressurized is a challenging task already in current systems, and may become even more challenging in the transition to the 4th generation of district heating.
In the first paper of this thesis, a demand response framework is suggested,which distributes the available flow to customers in a fair way. The framework aimsto make it so that when the available pressure in the network is low, the buildings inthe periphery should still be able to satisfy their heating needs.
The second paper of this thesis extends previous methods for identifying greybox parameters for hydraulic district heating models. Previous methods of this typerely on more measurement points, and do not include the influence of the controlvalves situated in customer substations. These model parameters can then be usedfor simulation or control purposes.
Together, the results presented in this thesis provide tools for better dealing withthe hydraulic limitations in district heating systems. At the end, future work is outlined which may further pave the way for improved control that takes hydrauliclimitations into account.