Design of embedded controller using hybrid systems for integrated building systems

The design of controllers for integrated building systems has been traditionally carried out using basic techniques validated frequently by simulation. However, the demands on occupants’ comfort, safety and energy consumption increase speedily as the current controllers used in buildings are not efficient and enough flexible to be adapted to any changes. To investigate such issues, this paper focuses mainly on the design of embedded control systems for integrated building plants. So therefore, the challenges of modeling embedded controller for building heating system are treated at higher-level of abstraction with the help of sophisticated tools and new development techniques. Particularity, this paper concerns the relevance and reliability of integrating distributed control and building performance simulation environments by run-time coupling, over TCP/IP protocol suite. In addition, this paper involves a case-study with an important setup where the simulated results are obtained within the use of run-time coupling approach

Simulation based design environment for multi-agent systems in buildings

With increasing experience and understanding of the behavior of users in buildings, it is very often difficult to properly build a control system that operates in the real world. To explore such a potential, this paper addresses a new approach to building automation systems that utilizes hybrids systems in order to model large scale systems typically arising in multi-agents. In fact hybrid systems are crucial for solving complex problems and for designing real-time controllers that can be used to automatically regulate HVAC (Heating, Ventilation and Air-Conditioning) systems and building components. A statechart formalism is also used for modelling of the entire building system behaviour in the structural analysis paradigm, in order to achieve a comfortable indoor climate while fulfilling operating constraints. Particularity, this paper concerns the relevance and reliability of integrating control and building performance simulation environments by run-time coupling, over TCP/IP protocol suite. In addition, this paper involves a case-study with two important steps; first consists of experiments obtained in TU Delft test-cell, and then simulation results are obtained with the use of run-time coupling approach

Applying advanced control strategies in building performance simulation by using run-time coupling

The use of advanced control technologies and intelligence control in buildings could make the current high performance system much more efficient and reliable. The integration of advanced control strategies in buildings will certainly produce significant results for better building productivity. One way to achieve this aim could be done by developing run-time coupling approach. This paper describes the need for the study and development of better control modeling in building performance simulation by integrating distributed computer programs. To explore control application benefits, the paper also describes the simulation results that would eventually achieve lower energy consumption and higher productivity in buildings. A case-study is presented which illustrates a potential ability of advanced control strategies in buildings. Practically, it shows why and how a run-time coupling approach is more appropriate to achieve better control modeling in building performance simulation

Developing web-services for distributed control and building performance simulation using run-time coupling

This paper reports the final results of a research project, which aims to achieve better control modeling in building performance simulation by integrating distributed computer programs. The paper focus on developing Web-services based SOAP/XML to run-time couple control and building performance simulation. Data exchange via Webservices allows system components to be loosely-coupled, rather than combined into an integrated building control systems. The paper also details an example apllication using this technology to configure a distributed simulation through an open protocol, like BACnet or LonWorks and so on. Particularity, this paper concerns the relevance and reliability of integrating Web-services with run-time coupling of control and building performance simulation environments over TCP/IP protocol suite. In addition, this approach provides a reusable patterns either for other similar projects or for real automated building applications

Indoor climate, outdoor climate and energy consumption

Electrical Engineering, Mathematics and Computer ScieneElectrical Engineering, Mathematics and Computer Scienc

Indoor climate, outdoor climate and energy consumption A new approach to the calculation of the effect of the outdoor and indoor climate on the energy consumption in buildings based on methods of statistical analysis

SIGLEBSE B210243R / UCL - Université Catholique de LouvainBEBelgiu

Model based optimal control for integrated building systems

Building performance simulation has traditionally concentrated on the use of basic and conventional control methods, which are of limited use since they cannot solve all the challenges encountered. With this regard, there is a great interest in the concept of modern control strategies for integrated building systems. To explore this potential, the paper focuses mainly on the application of model-based optimal control to buildings. In this case, a performance criterion minimized by linear programming is proposed in order to maintain the temperature of indoor environment comfortable while minimizing energy consumption. Particularly, this paper is concerned with the relevance and reliability of integrating control and building performance simulation environments by run-time coupling, over TCP/IP protocol suite. In addition, this paper involves a case-study with two important steps; the first step consists of experiments obtained in a test-cell that demonstrate the potential ability of advanced control strategies in buildings, and then simulation results are obtained with the use of distributed control and building performance simulation software by run-time coupling

Design of model based LQG control for integrated building systems

The automation of the operation of integrated building systems requires using modern control techniques to enhance the quality of the building indoor environments. This paper describes the theatrical base and practical application of an optimal dynamic regulator using modelbased Linear Quadratic Gaussian (LQG) control design for integrated building systems. This LQG regulator consists of an optimal state-feedback controller and an optimal state estimator. In this case, a performance criterion is minimized in order to maintain the indoor temperature of the building comfortable within a minimum energy consumption. Besides this regulation performance, a Kalman filter (KF) is used to minimize the asymptotic covariance of the estimation error when those building systems are encountered with disturbances. Particularly, this paper is concerned with the relevance and reliability of integrating control and building performance simulation environments by run-time coupling, over TCP/IP protocol suite. In addition, this paper involves a case-study with two important steps; the first step consists of experiments obtained in a test-cell that demonstrate the potential ability of advanced control strategies in buildings, and then simulation results are obtained with the use of distributed control and building performance simulation software by run-time coupling

Simulation based design environment for multi-agent systems in buildings

With increasing experience and understanding of the behavior of users in buildings, it is very often difficult to properly build a control system that operates in the real world. To explore such a potential, this paper addresses a new approach to building automation systems that utilizes hybrids systems in order to model large scale systems typically arising in multi-agents. In fact hybrid systems are crucial for solving complex problems and for designing real-time controllers that can be used to automatically regulate HVAC (Heating, Ventilation and Air-Conditioning) systems and building components. A statechart formalism is also used for modelling of the entire building system behaviour in the structural analysis paradigm, in order to achieve a comfortable indoor climate while fulfilling operating constraints. Particularity, this paper concerns the relevance and reliability of integrating control and building performance simulation environments by run-time coupling, over TCP/IP protocol suite. In addition, this paper involves a case-study with two important steps; first consists of experiments obtained in TU Delft test-cell, and then simulation results are obtained with the use of run-time coupling approach