Download Advanced Control of Solar Plants by Eduardo F. Camacho, Manuel Berenguel, Francisco R. Rubio PDF

By Eduardo F. Camacho, Manuel Berenguel, Francisco R. Rubio (auth.)

There is a few measure of separation among the advance of complicated keep an eye on algorithms in the examine neighborhood and their use in business perform. a number of innovations constructed from experimental examine into bettering the potency of sun thermal strength vegetation are right here tested within the context in their commercial application.

The concepts defined and utilized are:

  • modeling and simulation;
  • adaptive control;
  • model-based predictive control;
  • frequency area keep watch over and strong optimum keep an eye on; and
  • fuzzy common sense keep watch over.

Their effectiveness during this keep watch over approach is classified and a number of the concepts' merits and downsides are analyzed and in comparison. the implications acquired should be without problems prolonged to different commercial procedures; during this context, the sun keep an eye on strategy tested offers a terrific test-bed because it indicates a number of the difficulties present in different strategies, similar to nonlinearities, altering dynamics and robust exterior disturbances.

This is a finished research of the sensible program of alternative keep watch over ideas that may be of curiosity to regulate engineers operating in solar energy platforms and all through different technique industries, and to researchers, scientists and graduate scholars during this field.

Advances in business Control goals to file and inspire the move of expertise on top of things engineering. The fast improvement of regulate know-how has an influence on all components of the keep watch over self-discipline. The sequence deals a chance for researchers to provide a longer exposition of latest paintings in all features of business control.

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Example text

The seeking mechanism can reach three possible states: Track: The mechanism seeks the sun and the collectors focus on the pipe. Desteer: The mechanism steers the collector several degrees away from the sun and continues tracking with the receiver out of focus. This protects the field from over-heating in case of a pump failure. Stow: The mechanism moves the collector to an inverted position at the end of each day or if a serious alarm occurs. The system takes about 5 minutes to take the field from stow to track and only 20 seconds from desteer to tracle A more detailed description of the field can be found in [59].

The tracking system is very simple and is based on the voltage differential which appears between two photodiodes or photovoltaic cells placed on the collector axis in a plane perpendicular to the sun rays. A plaque is placed between the photodiodes in such a way that if the plane of the cells is inclined in respect to the perpendicular of the sunrays, a shadow is projected onto one of the cells, generating the differential voltage which, adequately amplified, produces the motors to move the collectors to the adequate position.

05 KW These values were obtained by applying the multiple regression method to a set of 60 measurements obtained under different operating conditions in steady state [29]. In order to identify the other parameters which appear in the concentrated formulation a square wave signal was introduced in the oil flow and input-output data generated were used to perform the adjustment of the parameters using the least squares method. As a result of the identification, the parameters were obtained to be C = 2267 KW and noS = 1322 m 2 .

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