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Dynamical optimisation of renewable energy flux in buildings

Abstract : This thesis proposes methods and solutions to improve the choice and the optimal use of renewable energies in buildings. The heating load assessment is transformed into a control problem where the regulator calculates the optimal heating load of the building. The proposed regulator for this aim is Model Predictive Programming (MPP), which is obtained by modifying Model Predictive Control (MPC). The required information by MPP is a low order building model and data records of the local weather. Therefore, we propose a modelling method in which the detailed model of the building is projected on a reduced order model having its structure obtained from physical knowledge. For the control of the multi source system, we proposed a Building Energy Management System (BEMS) which is divided in two parts: the first for the building temperature control and the second for the source control. For building thermal control we utilize MPC, for which we propose a new cost function because the classical one does not minimize the energy consumption. The proposed cost function permits to maintain the thermal comfort with minimal energy consumption. We formulate this function such that it can be optimized by using Linear Programming (LP) algorithm. To be able to use LP we give a solution to linearization of the building model based on the physical knowledge, which permits to use the model on the entire operating range. For the source control, we propose a solution which takes into account the command given by MPC in order to use the energy resources more effectively. The proposed control system is evaluated and compared with two PID based BEMS, against comfort and energetic criteria. The evaluation is performed in emulation on a reference detached house. The obtained results show that the proposed control system always maintains the thermal comfort in the building, reduces the energy consumption and the wear and tear of the hydraulic and heat pumps from the heating system.
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Submitted on : Monday, July 9, 2012 - 12:42:57 PM
Last modification on : Wednesday, February 24, 2021 - 11:48:02 AM
Long-term archiving on: : Wednesday, October 10, 2012 - 2:45:31 AM


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  • HAL Id : tel-00715826, version 1


Ion Hazyuk. Dynamical optimisation of renewable energy flux in buildings. Other [cond-mat.other]. INSA de Lyon, 2011. English. ⟨NNT : 2011ISAL0130⟩. ⟨tel-00715826⟩



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