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題名 | 三相感應電動機串接電抗器之動力制動 |
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作者姓名(中文) | 陳文耀; | 書刊名 | 技術學刊 |
卷期 | 5:4 1990.12[民79.12] |
頁次 | 頁391-398 |
分類號 | 448.22 |
關鍵詞 | 三相感應電動機; 制動; 動力; 電抗器; |
語文 | 中文(Chinese) |
中文摘要 | 利用電容器串接在三相感應電動機的任一電源線上,使電動機的端電壓形成不平衡,因而除了正序電流產生正向轉矩之外,亦有負序電流產生負向轉矩;當轉速愈低時,負向轉矩就愈大。如果在另一電源上同時串接電感器的話,則即使在較高轉速下,某些適當的L-C值亦可產生淨負向轉矩。本文以數學分析來求得合適的容抗值及感抗值,並以實驗來驗證所得結果。 |
英文摘要 | When a series capacitor is introduced in one of the power lines of a 3-phase induction motor, the voltages of the winding terminal are unba-lanced. While the positive sequence currents produces the positive torque, the negative sequence currents will also produce the negative torque. The lower the speed, the larger the negative torque. When a external suitable series reactor is introduced in another power line at the same time, then the net torque could be always negative during the braking period. Mathematic model is used to determine the capacitance and inductance. Experiments can demonstrate the braking effect. |
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