Hybrid Observer for Chemical Process Systems
نویسندگان
چکیده
Observers or state estimators are devices applied to approximate unknown parameters that are due to uncertain parameters, noise, disturbances and mismatch. It is important to identify those variables prior to construct a control system and avoid fault or process disruption. In certain chemical processes, such observer usage produced unsatisfactory results therefore hybrid approached is the best solution. Hybrid observers are combination of two or more conventional observers mainly to enhance the estimator’s performance and overcoming their limitations. In advanced cases, Artificial Intelligence algorithm is applied. This paper reveals the many types of hybrid observers used in chemical process systems as a guideline for future design of hybrid observers.
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