• CN:11-2187/TH
  • ISSN:0577-6686

›› 1996, Vol. 32 ›› Issue (3): 92-96.

• 论文 • 上一篇    下一篇

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IGBT等离子喷涂逆变器的研究

黄石生;庄小雄;薜家祥;曹彪;赖乙宗   

  1. 华南理工大学
  • 发布日期:1996-05-01

STUDY ON IGBT INVERTER FOR PLASMA SPRAYING

Huang Shisheng;Zhuang Xiaoxiong;Xue Jiaxiang;Cao Biao;Lai Yizong   

  1. South China University of Technology
  • Published:1996-05-01

摘要: 介绍了IGBT等离子弧喷涂逆变器的工作原理和主电路结构。分析了这种特大功率(60kVA级)逆变器在高压大电流下,如何对工作条件恶劣的功率开头器件IGBT进行控制和保护。对工作电压电流波形进行优化,以确保安全工作和减少开头功率损耗,提高效率。为实现主电路的大功率合理运行,比较了主电路的两种运行方式,并作了优选。

关键词: IGBT, 等离子喷涂, 逆变器

Abstract: The principle and main circuit structure of IGBT inverter for plasma spraying are introduced. For the high-power inverter (60kYA level) working in high voltage large current, it's analyzed how to control and protect power switch device IGBT in adverse conditions. The safe work, decreasing power loss in switches and promoting efficiency are assured by optimizing waveforms of work voltage and current. Two kinds of operation modes are compared and optimized in order to realize reasonable operation of main circuit in large power.

Key words: IGBT, Inverter, Plasma spraying