Development of Advanced Power System Analogue Simulator

Abstract

The digital simulation method has been utilized to analyze phenomena in power system. Since different algorithms can be applied, depending on the phenomena to be analyzed, digital simulation allows for high-precision analysis.
However, it also has a disadvantages: it produces continuous phenomena which occur in actual systems only fragmentarily. Thus, when discussing important projects at research centers such as IREQ in Canada, use an analogue simulator to continuously analyze the phenomena from the moment the fault occurs until steady state.
These analogue simulators however, consists of only a few generator models. They are only effective for analyzing phenomena in small-scale systems and do not allow for analysis of phenomena in large-scale systems over a long period of time.
For this reason, the Kansai Electric Power Company (KEPCO) in coopration with Hitachi, Ltd. and Fuji Electric Co., Ltd., has developed the world's largest power system simulator (APSA: Advanced Power System Analyzer). The simulator will be used to analyze the evolution of accidents in actual systems and to analyze continuous system phenomena over long period.
This paper describes an outline of the simulator.