Process bus-based protection system and intelligent electronic device

In this process bus-based protection system (40), a first merging unit (50_1) continuously samples an electrical quantity of a power system and digital-converts the electrical quantity to a first digital value. An intelligent electronic device (60) specifies the received time of the first digital va...

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Bibliographic Details
Main Authors Mikio Shintani, Naoya Narita
Format Patent
LanguageEnglish
Published 28.04.2021
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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Summary:In this process bus-based protection system (40), a first merging unit (50_1) continuously samples an electrical quantity of a power system and digital-converts the electrical quantity to a first digital value. An intelligent electronic device (60) specifies the received time of the first digital value received from the first merging unit (50_1) via a process bus (41), thereby generating time-sequence data of the first digital value corresponding to the received time. The intelligent electronic device (60) determines, on the basis of the time-sequence data of the first digital value corresponding to the received time and first delay time information, the value of the electrical quantity sampled by the first merging unit (50_1) at an arbitrary first time.
Bibliography:Application Number: GB20200018841