A fully digital power system simulator operating in real time

This paper presents details of the design and applications of a real-time digital simulator, RTDS/sup TM/, applied to the modelling of power system transients. This paper outlines the hardware and software design aspects of the RTDS. The hardware architecture is based on parallel processing techniques and employs many high-speed digital signal processors. Sophisticated graphical interface software facilitates circuit assembly and simulator operation. Detailed power system component models together with flexible analogue and digital I/O enable detailed testing of power systems and external devices connected to such systems. The RTDS can be applied in various areas of power system study. Specific applications which have been identified include closed-loop protective relay testing, control equipment testing, analogue simulator expansion and operation as a power system training tool.