Through probing into the current waveform control of CO2 welding, one method of short transition is put forward.
通过对CO_2焊的电流波形控制方法探讨，提出了适合于CO_2焊接过程的短路阶段和燃弧阶段的控制策略。
CO2 welding inverter with waveform control was expounded, in which the current waveform control scheme and the structure of the system were introduced.
论述了一种电流波形控制的逆变co2焊接电源，包括电流波形控制方案、系统构成等。
Through the experiments of the different current waveform, the results show that the current waveform control is an effective method to improve the quality of the weld formation.
通过对不同电流波形的实验研究，结果表明采用电流波形控制可以有效地改善焊缝成形。
In a drive system of power transistor inverter-motor, not only can it be used in fine control of motor current waveform, phase, amplitude and frequency, but can also be used to sense, fault current.
在大功率晶体管逆变器——电动机驱动系统中，它不但可用来对电动机电流的波形、相位、幅值和频率进行精细控制，而且能快速地检测出故障电流。
The digital comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four-phase stepping motor.
并通过FPGA设计的数字比较器，同步产生多路PWM电流波形，实现对四相步进电动机转角进行均匀细分控制。
A novel current regulator was used in the control system to improve the rotor current waveform.
该系统使用了一种新的电流控制器，以改善电机转子电流波形。
The human-machine interfaces including speed waveform display and store, armature current monitoring, control parameter setting, experiment instruction and report generator are introduced in detail.
其人机操作界面包括转速波形的显示和存储、电枢电流监控、参数的设置、实验指导书和实验报告调用等功能。
Secondly, the DC voltage loop and inner current closed-loop control method, both to ensure zero static error of the inverter output, but also to ensure that the inverter output waveform.
其次，本文采用直流电压外环、电流内环的双闭环控制方法，既保证了逆变器输出的静态误差为零，又保证了逆变器良好的输出波形。
Test results show that the controlling system works well to control the waveform current output and meets the need of TIG welding for aluminum-alloy.
试验结果表明：系统设计合理，输出电流的波形可控，完全能够满足铝合金TIG焊的工艺要求。
Constant current charging by switch control is the main method to generate non-sinusoid oscillation waveform.
采用开关元件控制的恒流充放电是产生稳定非正弦振荡波的主要方法。
In this paper, a control system with restraining negative sequence current is adopted simulation results of which demonstrate that output current waveform can meet sinusoidal and balanced demand.
为了解决上述问题，本文采用了抑制网侧负序电流分量的控制方案，仿真结果表明采用该方案后输出电流波形满足了正弦化及平衡化的要求。
Through analysis of the current waveform of the semi-control double three-phase 12-pulse rectifier and the expansion of Fourier series, the main harmonic components of the system were obtained.
通过对半控双三相12脉冲整流器的电流波形分析和傅立叶级数展开，得出系统的主要谐波成分。
The magnitude comparator designed with FPGA generates several PWM current waveform synchronously, to realize the step angles even division control for four-phase stepping motor.
并通过FPGA设计的数字比较器，同步产生多路PWM电流波形，实现对四相步进电动机转角进行均匀细分控制。
Aiming to minimize the torque ripple in condition of non-perfect BEMF waveform, the dissertation present a optimum current tracking control technique.
针对这种反电动势波形偏离理想波形的情况，本文提出了一种最优电流跟踪法来抑制转矩脉动。
Hysteresis current control and drive of IGBT are key sections of the study, and their performances will directly decide the efficiency of tracing the standard waveform.
滞回控制环节与IGBT的驱动环节是本文中的核心部分，它们的工作状况将直接影响到本装置以何种效率追踪标准波形。
Hysteresis current control and drive of IGBT are key sections of the study, and their performances will directly decide the efficiency of tracing the standard waveform.
滞回控制环节与IGBT的驱动环节是本文中的核心部分，它们的工作状况将直接影响到本装置以何种效率追踪标准波形。
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