REAL-TIME MODELING OF MULTIMACHINE POWER-SYSTEMS

An interactive real time power systems transient response simulator ha s been implemented on a parallel processor computer. The paper describ es the selection of equations used to model the transient behaviour of multimachine power systems together with the numerical techniques sui table for parallel processing. A partitioned solution algorithm has be en 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 comput er program. The present user interface includes animated graphical dis plays to emulate control room instruments, since immediate application s are in operator training and operational planning exercises. Followi ng the recent development of more powerful hardware, such simulators a re capable of modelling large power systems for long term planning stu dies.