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Алгоритм идентификации электромагнитных параметров асинхронной машины при работе от трехфазной электрической сети

Алгоритм идентификации электромагнитных параметров асинхронной машины при работе от трехфазной электрической сети

Abstract

Синтезирован алгоритм идентификации электромагнитной постоянной времени ротора, активного сопротивления и эквивалентной индуктивности рассеяния статора асинхронного двигателя при полнофазном управлении со свободно вращающимся ротором. Задача решена для модели асинхронного двигателя, представленной в системе координат статора α-β. Алгоритм основан на применении рекуррентного метода наименьших квадратов, который гарантирует высокую точность оценки параметров за минимальное время. Наблюдатель не предполагает предварительной информации о технических данных машины и отдельных параметрах ее схемы замещения. Результаты имитационного моделирования свидетельствуют об эффективности предложенного метода идентификации. Гибкая структура алгоритма позволяет использовать его как для предварительной идентификации АД, так и в процессе оперативной работы АД в составе частотно-регулируемого электропривода с векторным управлением.

Synthesized algorithm for electromagnetic rotor time constant, active resistance and equivalent leakage inductance of stator induction motor for free rotating rotor. The problem is solved for induction motor model in the stationary stator frame α-β. The algorithm is based on the use of recursive least squares method, which ensures high accuracy of the parameter estimates for the minimum time. The observer does not assume prior information about the technical data machine and individual parameters of its equivalent circuit. Results of simulation demonstrated how effective of the proposed method of identification. The flexible structure of the algorithm allows it to be used for preliminary identification of an induction motor, and in the process operative work induction motor in the frequency-controlled electric drive with vector control.

Keywords

ИДЕНТИФИКАЦИЯ ЭЛЕКТРОМАГНИТНЫХ ПАРАМЕТРОВ,АСИНХРОННАЯ МАШИНА,ТРЕХФАЗНАЯ ЭЛЕКТРИЧЕСКАЯ СЕТЬ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold