Multivariable QFT Controllers Design for Heat Exchangers of Solar Systems.
DOI:
https://doi.org/10.24084/repqj02.319Keywords:
Multivariable control, QFT control, solar systems, heatexchanger, power plants, disturbance rejectionAbstract
This paper addresses the control of a heatexchanger placed in a solar water heating system and influencedby external disturbances at plant output. Heat exchangers playan essential role in industries that use renewable sources forenergy generation and water heating, i.e. geothermal, solar,ocean, etc. One of the main control targets of such systems is toachieve a simultaneous and accurate control of sometemperatures. A multivariable (MIMO) model of the heatexchanger of a solar plant, and a robust controller able togovern the system despite the external disturbances and loopinteractions are developed in this work. The MIMOmethodology for the non-diagonal controller design is based onthe Quantitative Feedback Theory (QFT).