Estimation of Off-Nominal Parameters of Three-Winding Transformers Using Lagrange Interpolation
Three-winding transformers equipped with on-load tap changers are widely used in power systems. The impact of tap-changer control across the entire range of regulation from the maximum tap to the minimum tap needs to be taken into account in some power system analyses. This article demonstrates that...
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| Veröffentlicht in: | IEEE transactions on power delivery 2024-06, Vol.39 (3), p.1931-1938 |
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| container_title | IEEE transactions on power delivery |
| container_volume | 39 |
| creator | Robak, Sylwester Machowski, Jan |
| description | Three-winding transformers equipped with on-load tap changers are widely used in power systems. The impact of tap-changer control across the entire range of regulation from the maximum tap to the minimum tap needs to be taken into account in some power system analyses. This article demonstrates that described in literature and applied in some computer packages certain modeling assumptions for three-winding transformers operating on the off-nominal taps, are incorrect. Consequently these assumptions can lead to significant errors. The new method for the calculation of tap-dependent values of transformer equivalent impedances is proposed. The calculations for sample transformers are provided. |
| doi_str_mv | 10.1109/TPWRD.2024.3383164 |
| format | Article |
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The calculations for sample transformers are provided.</description><subject>Computational modeling</subject><subject>Equivalent circuits</subject><subject>Integrated circuit modeling</subject><subject>Interpolation</subject><subject>Lagrange interpolation</subject><subject>Lagrangian functions</subject><subject>Load modeling</subject><subject>modeling of three-phase transformers</subject><subject>power system analyses</subject><subject>Tap changers</subject><subject>Transformers</subject><subject>Winding</subject><subject>Windings</subject><issn>0885-8977</issn><issn>1937-4208</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkE9LAzEUxIMoWKtfQDwseE7N3032KLVqodgiW3oM2falbuluarI9-O3N2h48PZg3v4EZhO4pGVFKiqdysfp8GTHCxIhzzWkuLtCAFlxhwYi-RAOitcS6UOoa3cS4I4QIUpABMpPY1Y3tat9m3mVz5_CHb-rW7rOFDbaBDkLsP-VXAMCrut3U7TYrg22j86Hpv8vYSzO7TeIWsmmbmIPf_4Xeoitn9xHuzneIlq-TcvyOZ_O36fh5htdMqA5LQVmuK7mplLSS2kq5vADIGVggrpLOCW03FuxaMS60IFIIS5WjKk-IFnyIHk-5h-C_jxA7s_PHkGpEw4nUrOCM6uRiJ9c6-BgDOHMIqX34MZSYfkjzN6TphzTnIRP0cIJqAPgHCC1FTvkvnCFwmQ</recordid><startdate>20240601</startdate><enddate>20240601</enddate><creator>Robak, Sylwester</creator><creator>Machowski, Jan</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on power delivery, 2024-06, Vol.39 (3), p.1931-1938 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Computational modeling Equivalent circuits Integrated circuit modeling Interpolation Lagrange interpolation Lagrangian functions Load modeling modeling of three-phase transformers power system analyses Tap changers Transformers Winding Windings |
| title | Estimation of Off-Nominal Parameters of Three-Winding Transformers Using Lagrange Interpolation |
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