Implementation of a test system based on OPC Server for development of electronic speed governor in Gezende HEPP

Speed governors (SG) are auxiliary devices to measure and regulate the turbine speed where the turbine is coupled to a synchronous generator. A rehabilitation project for Gezende HEPP has been signed at the end of 2010 covering renewing of SG and excitation system of the plant. SG could be divided into two subparts; hydraulic speed governor and electronic speed governor (ESG). In order to develop ESG in factory within the conditions close to the field, a test system based on Matlab/Simulink and intelligent I/Os will be designed and implemented. Before production of ESG cubicles and execution of tests with real signals, it is possible to develop and test ESG in a setup using OPC Server. In this paper, the test system designed and implemented based on OPC Server for the development of ESG will be explained.