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Application of optimal control strategy to automatic generation control of a hydrothermal system

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2 Author(s)
Kothari, M.L. ; Indian Institute of Technology, Department of Electrical Engineering, New Delhi, India ; Nanda, J.

The paper highlights the design of automatic generation controllers through optimal control strategy, for an interconnected hydrothermal system using a new performance index that circumvents the need for a load demand estimator. The dynamic performances of these controllers are analysed and compared with those obtainedthrough the usual performance index as that used by Fosha and Elgerd, considering a step-load perturbation in either of the areas. Attempt is made to suitably design the new optimal controller that can provide safe generation rate and reasonably good response.

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Control Theory and Applications, IEE Proceedings D  (Volume:135 ,  Issue: 4 )