MODELLING AND SIMULATION OF SMALL HYDRO PLANTS

Abstract

In this dissertation work, a simulator is developed for run of river small hydroelectric plant to study its behaviour under normal and emergency conditions. The various components of small hydroelectric plant like - reservoir and power channel, governor, penstock and turbine, synchronous generator, exciter, transmission Line are considered in simulation. Using this developed software application, the dynamic and transient stability of a small hydroelectric plant under isolated and connected to Infinite Bus operating conditions can be studied when subjected to disturbances such as- load-variation, three-phase symmetrical fault, speed reference setting variation and inflow rate variation. This will also help in tuning the parameters of governor and exciter.