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Identification-based power unit model for load-frequency control purposes

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3 Author(s)
Hain, Y. ; Generation & Transmission Group, Israel Electr. Corp. Ltd., Haifa, Israel ; Kulessky, R. ; Nudelman, G.

This paper presents a new method for process transfer function identification (TFI) and a new approach for the development of a power unit's dynamic model based on new applications for presented TFI method. This method uses a two-stage procedure which indirectly reduces both noise effects and the order of the transfer function. The first stage is the frequency response identification of a process, while the second one is the transfer function computation using frequency response obtained in the first stage. The power unit dynamic model which is identified using three relatively simple experiments is applied to load-frequency control. This dynamic model developed for the vicinity of the steady-state operation mode can be used for automatic generation control purposes, to tune load-frequency control systems, as well as to build and set up a real-time simulator for dispatcher training. The modeling of 140 MW power units of the IEC (Israel) is fulfilled through implementation of this model and by its identification method yielding sufficiently good results

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Power Systems, IEEE Transactions on  (Volume:15 ,  Issue: 4 )