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頁籤選單縮合
題 名 | 三相感應電動機於不平衡電壓下之穩態分析=A Steady-State Analysis of Three-Phase Induction Motors Powered by Unbalanced Supply Voltage |
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作 者 | 王耀諄; | 書刊名 | 科技學刊 |
卷 期 | 8:3 1999.07[民88.07] |
頁 次 | 頁205-214 |
分類號 | 448.22 |
關鍵詞 | 電壓不平衡; 感應電動機; 對稱分量; Voltage unbalance; Induction motors; Symmetrical components; |
語 文 | 中文(Chinese) |
中文摘要 | 三相感應電動機在不平衡電源電壓下會引起過熱、減額運轉、電流不平衡、效率 下降等不良影響,進而減低電動機之性能與壽命,並造成電機保護上之困難。本文以簡單之 多相感應電動機正、負相序電路模型,分析電源電壓不平衡對電機之影響,並提出以電機之 正負相序阻抗之比值為指標,可迅速計算出電機電流不平衡率對電壓不平衡率的敏感度。 |
英文摘要 | This paper presents an analytical study into the steady-state performance of a three-phase induction motor under unbalanced supply voltage. Positive- and negative-sequence equivalent circuits of the induction motor are used to ascertain phenomena caused by voltage unbalance such as line-current unbalance, derating, drop in machine efficiency, etc.. This paper also proposes the ratio of motor positive- to negative-sequence impedance as an index that allows the sensitivity of line-current unbalance to voltage unbalance to be effectively evaluated. A numerical example is provided to show practical applications of the proposed analytical model. |
本系統中英文摘要資訊取自各篇刊載內容。