الفهرس 
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Abstract
Solar energy is a promising renewable energy source that support the
.c.
global growing demand and has a much lesser negative impact on the
environment than conventional fossil fuels.
The present work focuses on the implementation of hierarchical
control strategy on a multi-generation linear Fresnel reflector solar
plant located in Sekem medical center near
. the town of Belbis in northern Egypt. Monitoring and controlling of
the thermal process variables in the solar plant and the management
of the plant operating modes are of critical issues.
The developed control strategy consists of three layers, the first layer
being the supervisory control layer, responsible for selecting the
appropriate operating mode of the plant, taking into account the user
demand and weather data. The second layer is concerned with the
determination of the reference temperatures by means of a real time
optimization technique. The third layer is the regulatory control layer
which is responsible for regulating the outlet temperature of the solar
collector field and multiple energy outputs. The efficiency of the
proposed control strategy is evaluated using a complete plant model
developed and implemented In the environment of
MATLAB/Simulink using Conventional and renewable energy
optimization tool box.
Keywords: Solar energy, Linear Fresnel reflector, CARNOT
blockset, MA TLAB, Hierarchical control, Multi-generation.