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Micro-hydro-electric power is both an efficient and reliable form of clean source of renewable energy. It can be an excellent method of harnessing renewable energy from small rivers and streams. The micro-hydro project designed to be a run-of-river type, because it requires very little or no reservoir in order to power the turbine. The water will run straight through the turbine and back into the river or stream to use it for the other purposes. This has a minimal environmental impact on the local ecosystem.

Hydro power plant mainly consists of three sections,‘governor (controller), hydro servo system and hydro turbine’. Integrally this section is known as hydro turbine governor which is coupled to a synchronous generator to drive the shaft so that the mechanical energy of turbine is converted to the electrical energy. This system is supplying power to a common electrical three phase parallel RLC load. Models are simulated on MATLAB/Simulink. The speed governing control system ensures the constant speed operation during variation of load. The transient behavior of generator voltage, current and the rotor speed are also captured. Restoration of steady state condition within few seconds while changing the load ensures the stability of the entire system.