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Interfacing TRNSYS with MATLAB for Building Energy System Optimization

Author

Listed:
  • Josef Meiers

    (Chair of Automation and Energy Systems, Saarland University, 66123 Saarbruecken, Germany)

  • Georg Frey

    (Chair of Automation and Energy Systems, Saarland University, 66123 Saarbruecken, Germany)

Abstract

This contribution investigates whether the use of the MATLAB Optimization Toolbox on a parameter identification problem for a TRNSYS model provides better performance in iteration time. It presents the development of a framework connecting the MATLAB Optimization Toolbox with TRNSYS on the one hand and coordinating the optimization process of a TRNSYS model by GenOpt through MATLAB on the other hand. A benchmark framework in MATLAB was created to link TRNSYS and MATLAB and to configure the optimization process of GenOpt and the MATLAB Optimization Toolbox. Using this framework, a comprehensive comparison of the optimization solvers in GenOpt and the MATLAB Optimization Toolbox for the identification of the overall heat transfer coefficient of a TRNSYS heat exchanger model regarding the optimization time and number of iterations is presented as a use case. The results for the given problem show that GenOpt gives slightly better results in optimization time, whereas MATLAB has more potential and flexibility.

Suggested Citation

  • Josef Meiers & Georg Frey, 2025. "Interfacing TRNSYS with MATLAB for Building Energy System Optimization," Energies, MDPI, vol. 18(2), pages 1-23, January.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:2:p:255-:d:1562885
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