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KŮDELA, J. SUJA, J. ŠOMPLÁK, R. PLUSKAL, J. HRABEC, D.
Original Title
Optimal control of combined heat and power station operation
Type
journal article in Web of Science
Language
English
Original Abstract
Combined heat and power stations have become one of the most utilized units of district heating systems. These stations usually contain several boilers for burning fossil fuels and renewable resources used for heating up steam, which can be used either for residential and commercial heating or electricity generation. To ensure efficiency, a boiler should either run continuously (for at least a given period) on a power output higher than a given threshold or switch off. The optimal control of the plant operations should combine an efficient setup for the turbine and boilers in operation, reflecting the demand for steam and the price of electricity, and a schedule that describes which boilers should be in operation at a given time. This paper proposes a method for optimal control of combined heat and power station operation for a given time horizon. The method is based on a two-level approach. The lower-level models correspond to finding the optimal setup of the combined heat and power station parameters for an hourly demand for different kinds of steam. The upper-level model corresponds to the optimal schedule of the operations of the individual boilers, which is planned for the entire time horizon. The lower-level model is modeled as a mixed-integer linear programming problem and is solved using parametric programming. A dynamic programming algorithm solves the upper-level model with a rolling horizon. The validity of the proposed method and its computational complexity for different granularity of the time horizon, different ranges of the parameters, varying demand for various kinds of steam, and varying electricity prices are investigated in a case study. The presented approach can be readily applied to other control problems with a similar structure.
Keywords
Combined heat and power station; Dynamic programming; Optimal control; Parametric programming; Rolling horizon control
Authors
KŮDELA, J.; SUJA, J.; ŠOMPLÁK, R.; PLUSKAL, J.; HRABEC, D.
Released
13. 9. 2023
Publisher
Springer Nature
ISBN
1389-4420
Periodical
OPTIMIZATION AND ENGINEERING
Year of study
1
Number
State
Swiss Confederation
Pages from
Pages to
25
Pages count
URL
https://link.springer.com/article/10.1007/s11081-023-09848-2
Full text in the Digital Library
http://hdl.handle.net/11012/245225
BibTex
@article{BUT185216, author="Jakub {Kůdela} and Jerguš {Suja} and Radovan {Šomplák} and Jaroslav {Pluskal} and Dušan {Hrabec}", title="Optimal control of combined heat and power station operation", journal="OPTIMIZATION AND ENGINEERING", year="2023", volume="1", number="1", pages="1--25", doi="10.1007/s11081-023-09848-2", issn="1389-4420", url="https://link.springer.com/article/10.1007/s11081-023-09848-2" }