| 电感量对 IGBT 逆变焊机可靠性的影响 |
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| 引用本文： | 李春旭,韦鲲,魏继昆.电感量对 IGBT 逆变焊机可靠性的影响[J].兰州理工大学学报,1998(4). |
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| 作者姓名： | 李春旭 韦鲲 魏继昆 |
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| 作者单位： | 甘肃工业大学材料工程系 |
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| 摘 要： | 以半桥式ＩＧＢＴ逆变焊机为例，探讨了焊机主回路中的电感量对电路的工作状态的影响．通过在主回路中串联三种不同的电感的研究得出，焊机主回路中的感抗较大时，不仅会降低焊机的输出功率，而且会造成ＩＧＢＴ开关管上较高的关断电压尖峰；在主回路中串联可饱和电抗器，可实现ＩＧＢＴ零电压开通，并且因它而造成的ＩＧＢＴ关断电压尖峰较低．
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| 关 键 词： | 电感量，开关管，IGBT，可饱和电抗器，开关轨迹 |
The effect of inductance on the performance of IGBT inverter power source |
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| Li Chunxu,Wei Kun,Wei Jikun.The effect of inductance on the performance of IGBT inverter power source[J].Journal of Lanzhou University of Technology,1998(4). |
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| Authors: | Li Chunxu Wei Kun Wei Jikun |
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| Abstract: | Taking a half bridge IGBT inverter power source as an example, the influence of inductance magnitude within its main circuit on the operation situation of the welding power source is discussed. By using three different serial inductors in the main circuit, the experimental results show that greater inductance magnitude not only decreases power output of the machine but also results in peak value of breakaway voltage on IGBT. Using saturable serial inductors in the main circuit a no voltage switch on of IGBT can be realized so that the peak value of breakaway voltage on IGBT becomes lower. |
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| Keywords: | inductance magnitude switch transistor IGBT saturable inductor switching trace |
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