К проблеме идентификации неизмеряемых параметров распределительной сети по данным АСКУЭ
Аннотация
Рассматривается распределительная электрическая сеть (РЭС) напряжением 0,4 кВ, функционирующая в несимметричном режиме. Сформулирована задача идентификации неизмеряемых параметров (токов и напряжений) межабонентских участков РЭС по данным автоматизированной системы контроля и учета электроэнергии (АСКУЭ). Для решения сформулированной задачи предлагается метод, основанный на расчленении исходной структуры сети на три виртуальные подсистемы, представленные ее фазами. На основе принципа наложения получены математические соотношения, анализ которых позволил идентифицировать искомые параметры сети в явной форме. Отличительная особенность метода состоит в том, что при реализации процедуры идентификации не требуется описание ее переменных состояния в комплексной форме, что упрощает его вычислительную схему. Полученные результаты ориентированы для идентификации и мониторинга потерь электроэнергии в распределительной сети в составе АСКУЭ.
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DOI: http://dx.doi.org/10.14529/power190103
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