Active power regulation of auxiliary generation units in hydroelectric power plants using power electronic switching

This paper presents the initial results of a research project that aims to develop a control system for active power regulation in synchronous auxiliary generators connected to hydraulic generation units. In this sense, the developed system is based on the compensation of the inductive impedance of the auxiliary generator using TCSC switched by IGBT0s. The control of IGBT0s firing angle is achieved by symmetric pulses generated by a PWM module. The proposed system was implemented and tested digitally in Simulink/MatLab environment considering several active power values demanded by an auxiliary distribution system of 400VCA. The promising results obtained in these simulations show the efficiency and robustness of the proposed methodology.