Optimizing intensive automatic voltage regulator parameters

The present paper focuses on the use of intensive automatic voltage regulators (AVRs) to improve the dynamic behaviour of high power synchronous generators (SGs) considering the influence of the entire power system (PS). The case study discusses the SGs within two significant power plants in Romania (Turceni and Rovinari). The authors analyse the influence of several types of supplementary derivative signals and determine their optimal values considering a winter evening maximum type operating condition for the Romanian Power System (RPS) and a medium intensity perturbation (the disconnection of the slightly loaded 400 kV line Portile de Fier - Slatina). Finally, several general conclusions are pointed out.