哈尔滨工业大学学报(英文版)
哈爾濱工業大學學報(英文版)
합이빈공업대학학보(영문판)
JOURNAL OF HARBIN INSTITUTE OF TECHNOLOGY
2004年
3期
250-256
,共7页
Abdolreza Esmaeli%孙力%聂剑红
Abdolreza Esmaeli%孫力%聶劍紅
Abdolreza Esmaeli%손력%섭검홍
plasma cutting power supply%PWM%buck converter%PID compensator%MATLAB simulation
A complete model of switch-mode plasma cutting power supply and its simulation are developed. The full bridge isolated pulse width modulation (PWM) buck converter in continuous conduction mode (CCM) for high watt plasma power supply is approached. Reduced ripple current and improved power factor are achieved in the plasma power supply. With a PID control strategy, circuit responses become more stable and faster with low overshoot during load and current changing. The converter achieved high efficiency under 3 to 15kW load conditions.
