DIGITAL EQUIPMENT FOR THE TEMPERATURE CONTROL INSIDE AN ENCLOSURE. THE SYSTEM MODELING
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2010, Vol 34, Issue 34
Abstract
The fast design flow for the temperature control inside a thermal enclosure includes some identification elements, modeling and simulations for the digital control algorithms in different forms and a preparation of the real-time algorithm using an appropriate programming language for the hardware implementation. The solution, after this short but holistic approach, is a ready to use form for the computing relations associated to the control algorithm and the optimum values for the tuning parameters. In this stage, many hardware options and constraints must be considered so that the models and simulations could reproduce the real operating conditions of the experimental platform (that will be presented in a subsequent paper). For a small thermal enclosure designed and realized both for educational and scientific purposes, the first step is to identify a transfer function based on IN / OUT experimental data. Using this result, several models were analyzed, considering different external conditions, various operation modes and several control algorithms: by commutation (On / Off, with hysteresis band), proportional (P), PI (continuous and digital forms). A careful design of the models was tuned so that all the basic processing for the simulations should as closed as possible with the realtime operation of a target microcontroller, with its specific hardware / software constraints.
Authors and Affiliations
Dan MIHAI
Keywords
Related Articles
- EP ID EP124156
- DOI -
- Views 155
- Downloads 0
Automation of a Sun Tracking System for Photovoltaic Panel with Low Concentration of Solar Radiation
Over the last decades, because of the pollution and awareness of limited resources of fossil fuels, the renewable sources of energy production gained increasing confidence as appropriate solution for humankind. Within...
The Influence of the Output Current Deforming Regime on the Input Current Harmonics for a Three-Phase Rectifier Bridge
The present paper was created based on the desire of the author to realize a systemic approach of static converters in general and especially of rectifiers. Looked as system from energetic point of view, a rectifier coul...
Predictive versus Classic Control of the Induction Motor Drives
The paper deals with techniques which use the predictive concepts in order to obtain both the pulse width modulation strategy of a voltage fed inverter and the predictive control of the induction motor drive. Concerning...
POWER FACTOR AUTOMATIC COMPENSATION WITHIN 20/6KV ELECTRICAL TRANSFORMATION STATIONS
The addition of the compensation of the power factor is one technical measure to improve the functioning of the electrical installations. Because the loads of the electrical installations show fluctuations in 24 hours an...
USING A LABVIEW AND FIELD POINT I/O MODULE FOR CATALYTIC ISOTOPIC EXCHANGE COLUMN CONTROL AND OPERATORS TRAINING
This paper presents the main advantages of using the programmable automation controller (PAC) and LabVIEW software in the operation of an isotopic exchange column which is part of ETRF (experimental tritium removal facil...