welding voltage

Software compensation for mains voltage fluctuation of welding machine based on DSP

基于DSP数字控制焊接电源的网压波动软件补偿法

The ANALYSATOR HANNOVER evaluates statistically probability density distributions PDD and class frequency distributions CFD of different stochastic variables and calculates from the instantaneous values of welding voltage u and welding current I, the True Electrical Power Input as the linear mean value of all multiplications UI.

汉诺威分析仪采用统计学的概率密度分布PDD和频段分布（CFD）方法对不同的随机变量进行评定，通过对瞬间焊接电流（I）与电弧电压（U）乘积的计算而获得真实电能功率。

Regression equation shows that one-knob linear regression coefficient for welding current target signal and welding voltage target signal in CO_2 welding process will increase with an increase in ( welding) wire diameter, but constants of regression equation will decrease.

回归方程表明，CO2焊接随焊丝直径增加，其焊接电流目标信号与焊接电压目标信号的一元线性回归系数增加，回归方程的常数项减小。

High ability in resisting public power grid voltage wave ang power grid compensation, stable welding current.

抗电网电压波动及电网补偿能力强, 焊接电流稳定.

On the basis of one-knob linear regression analysis, the unified adjusting of CO_2 welding current target signal and welding voltage target signal has been realized by using hardware circuit, and welding voltage target signal can be fine adjusted.

在一元线性回归分析的基础上，应用硬件电路实现了CO2焊接电流目标信号与焊接电压目标信号的一元化调节，并且具有焊接电压目标信号的微调功能。

Two characteristic features of the wavelet analysis was applied in the CO _ 2 welding voltage control.

作者针对小波分析的特点,将其两个重要特性应用于电弧焊控制中.

Compared with conventional welding power source, the working voltage of the system is about 1-5V lower at same wire feed speed.

实验表明，该系统具有很强的电弧自身调节能力，相对于传统控制方式，在相同送丝速度条件下工作电压可以降低1～5V。

Arc voltage and welding current are signal source.

以电弧电压和焊接电流为采集的信号源。

Outer loop is voltage loop which controls base time to assure arc length adjustment quickly in external disturbance through welding voltage feedback to reach arc length stable.

外环电压环通过弧压反馈控制基值时间来稳定弧长，保证电弧在焊接过程中遇到外界干扰能快速进行调节。

A developed welder, which outputs corresponding secondary voltage by different combination of original side of tap voltage transformer and voltage regulator, can output appropriate welding voltage through 3 phases bridge silicon rectifier circuit.

所研制的CO2焊机是由抽头式变压器原边和电压调节器的不同组合输出相应的副边电压.通过三相桥式硅整流电路输出适当的焊接电压。

Welding voltage power grid voltage fluctuations and changes in arc length self-adjusting ability.

焊接电压在电网电压波动及电弧长度变化时自调节能力强.

A new FB-ZVZCS-PWM soft-switching inverter arc welding power supply was introduced, which adopted the auxiliary transformer and limited bipolar control mode. The principles of realizing zero voltage switching ( ZVS) for leading leg by capacitor and ZCS for lagging leg by auxiliary transformer were explained.

文中介绍了采用原边辅助变压器、有限双极性控制的新型FB-ZVZCS-PWM软开关弧焊逆变电源实现超前臂零电压开关和滞后臂零电流开关的工作原理。

In the meantime, the power source makes use of single chip microcomputer controlling technology and realizes the function of welding parameters preset. This power can also modify the welding voltage U f through feed back controlling so to get constant voltage characteristic.

同时，运用了单片机控制，实现了焊接参数的预置功能以及反馈控制技术对焊接电压Uf进行调节，从而获得熔化极弧焊电源所需的外特性。

However, the voltage welding has lower temperature peak value , wider welded seam, and smaller depth-to-width ratio.

而中压下电子束焊接时的温度峰值较低, 且焊缝较宽,焊缝深宽比较小.

Steady output voltage and current, high quality welding, advanced control technology, wide current scope.

输出电压和电流稳定, 焊接质量高, 控制技术先进,电流调节范围宽.

The electric network voltage wave can be compensated automatically. The welding electric arc is stability.

具备电网电压波动自动补偿功能, 焊接电流稳定.