A high precision electron beam welder power supply based on buck-boost converter using fuzzy PID control

A novel electron beam welder ( EBW) power supply was developed. Compared with the traditional 3-phase contrail 12-pulse rectifying supplies, it requires a much lower step-up ratio transformer, but a much less output ripple voltage can be obtained. The design of the main circuit of this new power sup...

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Veröffentlicht in:中国焊接 2012-03, Vol.21 (1), p.64-69
1. Verfasser: 何少佳 李建玲 莫金海 李海标
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description A novel electron beam welder ( EBW) power supply was developed. Compared with the traditional 3-phase contrail 12-pulse rectifying supplies, it requires a much lower step-up ratio transformer, but a much less output ripple voltage can be obtained. The design of the main circuit of this new power supply is based on PWM buck-boost converter topology. In developing the system a fuzzy PID control method is adopted because of the strong non-linearity and big signal working conditions of the circuit system. The SABER-MATLAB models and fuzzy algorithm were used in developing the fuzzy PID controller. The co-simulation and experimental results displayed that the unit introduced herein has the characteristics of high control precision and antinterference capability.
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subjects MATLAB模型
升压转换器
基础
模糊PID控制器
焊机电源
电子束焊机
降压
高精密
title A high precision electron beam welder power supply based on buck-boost converter using fuzzy PID control
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