Wide input for adaptive power supply of mine
In order to solve the domestic problem of coal mines voltage, multi-rate and wide range of fluc tuation, putting forward four wide input power supply of adaptive design options (AC: 85 ~825 V) , which include phase-shifting control based on full-bridge rectifier, the AC regulation, commutating in the wake of chopping and automatic switching used the Auto-Transformer and thyristors, and then gave priority to automatic switching. The programme including that thyristors were controlled in main circuit, and technol ogy based on the uPD78F9202 and the control strategy of tracking transient voltage in control circuits, and realized that output voltage working stability in 24 V when the input voltage changing from 85 to 825 V. The results showed that the programme was stable and reliable, its worth applying and has practical significance.
adaptive power supply phase-shifting chopping PWM
Qiang Huang Yugang Su Yuanxiang Lu Qingshan You
Chongqing Branch, China Coal Research Institute, Chongqing 400037,China Automation College, Chongqing University,Chongqing 400044, China
国际会议
重庆
英文
254-262
2009-05-20（万方平台首次上网日期，不代表论文的发表时间）