Определение предельных параметров режимов для обеспечения успешной ресинхрониза-ции объектов распределенной генерации в условиях предприятия черной металлургии
Аннотация
Развитие объектов распределенной генерации и усложнение конфигурации электрической сети приводит к повышению числа возможных аварийных режимов промышленных систем электроснабжения. При коротком замыкании в связи с энергосистемой или снижении частоты в питающей сети электростанция с частью электроприемников выходит на раздельную работу. После отключения поврежденных линий должна быть выполнена автоматическая ресинхронизация узла с сетью. С целью исследования подобных аварийных режимов разработан алгоритм расчета переходных электромеханических процессов в промышленных системах электроснабжения. На основе созданного алгоритма разработан программный комплекс, позволяющий исследовать подобные электромеханические режимы. В связи с тем, что выход на раздельную работу может осуществляться при различном составе источников электроэнергии и нагрузки, была получена методика определения предельных небалансов мощностей при заданном времени работы автоматического повторного включения. Исследования производились на примере промышленной электростанции, имеющей в своем составе генераторы разной мощности и питающей энергоемкую промышленную нагрузку. Разработаны мероприятия по повышению результирующей устойчивости в условиях заданной промышленной системы электроснабжения. Созданный программный комплекс может быть использован в качестве советчика диспетчера для повышения эффективности управления режимами собственных электростанций промышленного предприятия.
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DOI: http://dx.doi.org/10.14529/power160402
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