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Leakage Inductance Estimation of $Y-\triangle$ Transformer Using the Least Square Method  

Hwang, Tae-Keun (전북대 전기공학과)
Lee, Byung-Eun (전북대 전기공학과)
Jang, Sung-Il (전북대 전자정보공학부)
Kim, Yong-Gyun (한국IED Eng.)
Kang, Yong-Cheol (전북대 전자정보공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.56, no.4, 2007 , pp. 645-650 More about this Journal
Abstract
This paper proposes a parameter estimation technique of a power transformer. Based on the combined equation, it estimates separately the primary and secondary leakage inductances using the least square method from the instantaneous voltages and currents in the steady state. The performance of the proposed technique was investigated by varying the cut-off frequency of the filter and the number of samples per cycle. The estimated values are obtained based on the average value for 41 cycle.
Keywords
Leakage inductance estimation; Least square method; Parameters;
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