表示线路电压不平衡

Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344) Pub Date : 2002-12-10 DOI:10.1109/IAS.2002.1043766

Seung-Gi Jeong

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引用次数: 22

摘要

用对称变换得到的电压不平衡系数(VUF)表示电压不平衡程度需要复杂的相量操作。本文研究了各种表示VUF的方法，以方便现场应用中的计算。导出了具有现成的线对线电压值的VUF公式，并提出了一种确定VUF的直观图形方法。对各种近似方法进行了研究，表明一些替代方法可以比传统方法更有效地近似VUF。

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Representing line voltage unbalance

Representing the degree of voltage unbalance with the voltage unbalance factor (VUF) derived from symmetrical transformation requires complex phasor manipulations. This paper investigates various ways of representing VUF to facilitate the calculation in field applications. A formula for VUF with readily available line-to-line voltage magnitudes is derived and a straightforward graphical way of determining VUF is proposed. Various approximate methods are examined and it is shown that some alternative measures can be more effective in approximating VUF than conventional ones.

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Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344)

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