SCADA system applied to micro hydropower plant

This paper proposes a simulation and emulation system using Matlab and SCADA (supervisory control and data acquisition). Matlab is used for micro hydropower plant simulation. The emulation system is composed by a SEIG (self-excited induction generator) coupled to an electric motor drived by frequency converter. The Modbus RTU (Remote terminal unit) protocol connects SCADA with the frequency converter and OPC (object linking and embedding for process control) links SCADA with the Matlab environment. Hydropower plants simulation systems requires integration of several components and for this purpose it was used a SCADA system to process information and make it available to the operator in real time.