送電線の電圧・電流を用いた脱調検出法の電力系統シミュレータによる検証

概要

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A severe fault may cause loss of synchronism of a small number of generators. And it may make many generators out of service resulting in wide area blackout. When two groups of generators lose synchronism, the magnitudes of voltage on some lines becomes zero. Therefore an approach that lines with zero voltage are opened has been employed actually in order to prevent loss of synchronism from extension. This paper presents a new method using voltage and current measured on a line during disturbance to detect the line with zero voltage at the instant when loss of synchronism takes place. A method to detect loss of synchronism using voltage and current measured on a line was already proposed. This paper presents results of the tests performed by using power system simulator which is composed of a DC-motor, a synchronous generator, artificial transmission line, circuit breaker equipments and so on. The validity of proposed methods was verified by finding loss of synchronism correctly.
社団法人電気学会の論文
2005-06-01