This work develops a digital control strategy of DC (Direct Current) engine for emulation of a hydraulic turbine Francis type. It is intended to fulfill a step in the process of building a Hydro Generating Unit (UGH) on a reduced scale, where it will be possible to study the process of energy generation.
It presents an general description of hydro generating unit emphasizing the process of transformation of energy and highlighting the hydraulic turbine and the synchronous machine.
So to understand the scope of the work, It was developed the mathematical modeling of the CC engine in PU (by unit), which makes physical considerations and it arrives at the model used for control strategy.
It also models the hydraulic turbine, linear and nonlinear, obtaining a transfer function, in PU, which will be responsible for generating the reference signal of mechanical power which will be followed by CC engine performance after the digital controller.
For the digital control, we use the polynomial allocation strategy in RST (Regulation, Sensitivy and Tracking) canonical structure. It develops the concept that defines this structure and it projects the controller to the modeled engine plant of CC engine.
Finally, it consolidates the proposal by presenting a simulation in MATLAB 2010 - SIMULINK, which features the modeled hydraulic turbine, the RST digital controller and the CC engine in PU. It is proven in this simulation the feasibility of the hydraulic turbine emulation for a CC engine, through tests simulating the charging socket and the speed variation in a hydro generating unit.
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