Abstract
The application of a large number of distributed generation plants, built on the basis of synchronous generators in Electric Energy System (EES), requires solving the problem of their centralized control, adjustment of voltage and frequency local controllers, which entails taking into account a large number of interrelated system parameters. These problems can be solved using prognostic control algorithms. The purpose of the study was to determine the effect of the proposed group prognostic voltage and frequency controllers for small-scale Hydroelectric Power Plant (HPP) on various operating modes of the EES. The studies were conducted in the MATLAB environment using the Simulink and SimPowerSystems simulation packages. The results of computer simulation indicate that the use of group prognostic controllers significantly reduces overshoot, oscillability index, transient time and voltage dips, and frequency in the normal and emergency conditions. The proposed methods of the group prognostic controller formation and tuning allow to improve quality indices of small-scale HPP voltage and frequency control, while retaining the former settings of synchronous generators controllers.
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