大功率IGBT逆变式空气等离子切割电源的关键技术  

Key Technologies of High-power IGBT Inverted Air Plasma Cutting Power Supply

作　　者：贾德利[1] 尤波[1] 任文波 张逢靖[1] 张雪岩[1] 

机构地区：[1]哈尔滨理工大学自动化学院,黑龙江哈尔滨150080 [2]大庆采油二厂工程技术大队,黑龙江大庆163414

出　　处：《哈尔滨理工大学学报》2008年第1期109-112,共4页Journal of Harbin University of Science and Technology

摘　　要：对一种大功率IGBT逆变式空气等离子切割电源的主电路进行了原理分析与设计.从提高切割效率,减小整机体积以及加强电源可靠性的角度出发,对电源外特性、驱动电路、逆变器结构和中频变压器材质等各项电源关键技术进行了分析和讨论,并提出了相应的设计方案,使电源整机性能得到了改善,可以完成切割电流160A、切割电压150V的大功率作业要求.实验证明,该方案合理、有效,能够满足切割工艺要求.The paper analyzes and designs the main circuit of high-power IGBT inverted air plasma cutting power supply. It also discusses such key technologies as external characteristics of power drive circuit, inverter structure and medium frequency transformer, and presents corresponding design plan to improve efficiency, to reduce volume of whole machine, and to enhance power reliability. As a result, the power improves the whole performance and it can satisfy high-power requirement of 160 Amp. cutting current and t50 Volt cutting voltage. The resuk shows that this plan is reasonable and effective to satisfy cutting process requirements.

关 键 词：IGBT 逆变 切割电源 大功率 

分 类 号：TG483[金属学及工艺—焊接]