In metal processing by powerful current pulses, there is a need for adjustment of both the pulse repetition rate and amplitude. This paper describes a powerful current-pulse generator with a controlled thyristor converter, which is used as a power source for a charging device for regulating the voltage (pulse amplitude) of a capacitor charge. The disadvantages of the generators associated with the current spike in the capacitor charge modes that reduces the supply network quality are discussed. The application of a reverse thyristor converter (RTC) as a power supply is considered to reduce the transient time at a voltage decrease on the capacitors. The generator’s structural diagram that consists of a reversible thyristor converter with separate control, a power unit, a capacitor recharge device, an automatic control system (ACS) for the charger parameters, and a capacitor charging control system is presented. The regulator parameters of the ACS are calculated. To obtain optimal transients, a standard methodology for regulator tuning according to a modular optimum is employed. In order to reduce overadjustment at the disturbance time reaching 100% and higher, the so-called logical device is introduced into the ACS. The latter blocks the control pulses on the converter thyristors and simultaneously reduces the signal at the output of the current regulator to zero. A simulation model of a powerful current pulse generator is synthesized in the MatLab-Simulink environment. The model is analyzed, and plots explaining the device’s operation principle and transients in various operating modes are shown. The use of a generator will allow high-performance adjustments of the current pulse amplitude and obtain sufficiently high-quality capacitor charge (discharge) transients, which will have a beneficial effect on the power supply network. The application of higher quality converters will significantly increase the current pulse repetition rate.

中文翻译：

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基于反向晶闸管变换器的大功率电流脉冲发生器

在通过强大的电流脉冲进行金属加工时，需要调整脉冲重复率和幅度。本文介绍了一种带有可控晶闸管转换器的强大电流脉冲发生器，它用作充电设备的电源，用于调节电容器电荷的电压（脉冲幅度）。讨论了与降低供电网络质量的电容器充电模式中的电流尖峰相关的发电机的缺点。反向晶闸管转换器 (RTC) 作为电源的应用被认为可以减少电容器电压下降时的瞬态时间。发电机结构图由分控可逆晶闸管变换器、功率单元、电容器充电装置、提出了充电器参数自动控制系统（ACS）和电容器充电控制系统。计算 ACS 的调节器参数。为了获得最佳瞬态，采用了根据模块化优化进行调节器调谐的标准方法。为了减少扰动时间达到100%及更高时的过度调整，在ACS中引入了所谓的逻辑器件。后者阻止转换器晶闸管上的控制脉冲，同时将电流调节器输出端的信号降低到零。在 MatLab-Simulink 环境中合成了一个强大的电流脉冲发生器的仿真模型。对模型进行了分析，并显示了解释设备工作原理和各种工作模式下瞬态的图。使用发生器将允许对电流脉冲幅度进行高性能调整，并获得足够高质量的电容器充电（放电）瞬态，这将对供电网络产生有益的影响。更高质量转换器的应用将显着提高电流脉冲重复率。