Research on Control Method of Synthetic Test Based on Recursive Least Square Algorithm

doi:10.16628/j.cnki.2095-8188.2020.04.003

Abstract

Abstract: To meet the control requirements of high precision and fast real-time response in large-capacity synthetic test,this paper used recursive least square(RLS) algorithm to predict the zero of short-circuit current,and analyzed the influence of sampling accuracy,sampling frequency,noise,frequency offset and other factors on the calculation accuracy of the prediction algorithm.The method of restraint and improvement was also given.In order to verify the accuracy of the algorithm,a synthetic circuit control system based on DSP was built.The experimental results show that the errors between the actual input time and the setting time of the voltage loop and the arc extension loop are less than 50 ms,which meets the accuracy requirements of the synthesis experiment and ensures the equivalence of the synthesis experiment.

Key words: recursive least square (RLS) algorithm, synthetic test, forgetting factor, circuit breaker

CLC Number:

TM715

YIN Lijun, CAI Zhiyuan. Research on Control Method of Synthetic Test Based on Recursive Least Square Algorithm[J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 589(4): 11-17.

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