Dynamical control model of the cascaded Kainji-Jebba hydropower operating head
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Date
2019
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Published by Faculty of Engineering, Federal University Oye-Ekiti, Ekiti state, Nigeria
Abstract
Operation and design of control system for the cascaded Kainji-Jebba hydropower system poses a great challenge to
researchers and engineers. The difficulties arose from the fact that the system is affected by several nonlinear interacting factors such as variations in inflows, stochastic factors that are weather related, availability of the turbo-alternators, and numerous other constraints that are influenced by the system dynamics. All these makes the mathematical representation of the system difficult. This paper presents the development of a dynamical model for the operation and optimal control of the operating heads of the cascaded system. The mathematical models were developed from energy conversion equation and Bernoulli’s equation. The model was calibrated and tuned using measured data. Upon validation by comparing the response of the model with measured head, a deviation within ±2% was observed, making it a good prediction of the system response and appropriate for control system design.
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Keywords
Control model, Discharge, inflows, Operating head, Turbo-alternators
Citation
6