摘要
数字化是现代电源的发展趋势,软开关技术是当代电源技术的研究热点,将两者融合,设计了以DSP芯片TMS320F2812为核心的双逆变控制系统。一次逆变采用移相全桥逆变电路软开关技术实现输出电流大小控制;二次逆变采用耦合电感的半桥逆变电路拓扑。该系统在具有良好的变极性输出性能的同时,又具有硬件电路结构简单、成本低、系统效率高等优点。使用DSP控制使焊机的可靠性得到提高,保证了焊缝成形美观,实现了焊机数字化控制。
Digitalization is the trends of modern welding power source,soft-switching technology is the research focus of the modern welding power source technology research focus.This combination of the two,designed a TMS320F2812 DSP chip as the core of the dual inverter control system.An inverter with phase-shifted full-bridge inverter circuit output current soft-switching technology to achieve size control.Second inverter half-bridge inverter with coupled inductor topology.The system has good performance of variable polarity output,they also have a hardware circuit structure is simple,low cost,the system efficiency.With DSP control to improve the reliability of welding to ensure that the weld appearance,the basic realization of digital control of welding machine.
出处
《电焊机》
北大核心
2011年第7期30-33,共4页
Electric Welding Machine
