Abstract
An interactive real time power systems transient response simulator has been implement ed on a parallel processor computer. The paper describes the selection of equations used to model the transient behaviour of multimachine power systems together with the numerical techniques suitable for parallel processing. A partitioned solution algorithm has been adopted to allow simultaneous calculation of the machine equations. Key features of the multiple microprocessor computer architecture and associated multitasking operating system are presented. Results from the simulator compare well with those from the test proven CEGB computer program. The present user interface includes animated graphical displays to emulate control room instruments, since immediate applications are in operator training and operational planning exercises. Following the recent development of more powerful hardware, such simulators are capable of modelling large power systems for long term planning studies.
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