Weighted Multiple Model Adaptive PID Control with Crossover Frequency Shift Tuning for a Hydraulic Turbine Plant

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Hydraulic turbines are known to have complex and highly nonlinear dynamics with some varying parameters, especially in the presence of large or abrupt disturbances. In this study, the weighted multiple model adaptive control scheme was used as a controller for a hydraulic turbine model, with the aim of providing desirable characteristics such as robustness and stability. The system of comprised four candidate plant models with four corresponding candidate PID controllers which were tuned according to the phase shifting method. The plant operation, subjected to both abruptly changing and smoothly changing load conditions, was simulated. From the results, it was found that the proposed controller showed very good performance for both types of disturbance changes.

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1644-1647

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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