Title of article :
Fuzzy and feedforward control of an hybrid thermal energy storage system
Author/Authors :
Marc LeBreux، نويسنده , , Marcel Lacroix، نويسنده , , Gérard Lachiver & Chon Tam Le Dinh، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
7
From page :
1149
To page :
1155
Abstract :
A control model for operating a system that stores simultaneously sensible heat from solar and electric energy is proposed. The hybrid thermal energy storage system accumulates solar energy during sunny days and releases it later at night or during cloudy days. It also stores heat from an electric heater during off-peak periods so as to release it later during peak periods. The control model, which makes use of 24-h weather forecasts, comprises two types of controllers: a fuzzy logic controller for estimating the daily amount of thermal electric energy to be stored and a feedforward controller for determining the electricity consumption profile of the heating element during off-peak hours. Results indicate that the proposed control system is far superior to traditional control systems. It maintains a comfortable thermal environment at all times, i.e. the temperature fluctuations are kept within the imposed margins and overheating of the room never occurs. Furthermore, compared to a traditional electric base board heating system, it reduces the electricity consumption for the winter season by 24% and 94% of this electricity is consumed during off-peak hours.
Keywords :
Solar energy , Feedforward control , thermal energy storage , Electric energy , Fuzzy logic control
Journal title :
Energy and Buildings
Serial Year :
2006
Journal title :
Energy and Buildings
Record number :
419808
Link To Document :
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