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首页> 外文期刊>Russian electrical engineering >Determination of the Possibility of AC Voltage Stabilization Using a Pulsed Polarity-Inverting Converter. Part 1
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Determination of the Possibility of AC Voltage Stabilization Using a Pulsed Polarity-Inverting Converter. Part 1

机译：使用脉冲极性反相转换器确定交流电压稳定的可能性。第1部分

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Details are investigated of the operation of an ac voltage stabilizer, a polarity-inverting pulsed converter, in the absence of input-voltage waveform distortions. The stabilizer performance was determined on the basis of a limit continuous model thereof corresponding to a vanishingly small switching period. It has been found that, in the steady-state harmonic mode, the inverting pulsed converter can be considered as an adjustable voltage source with output resistance proportional to the choke impedance. The possibility is shown of stabilizing the output voltage when the input voltage varies in a wide range without its preliminary biasing. To meet practical requirements for smoothness of output-voltage high-frequency pulsations expression have been obtained for calculating the choke inductance and condenser capacity taking into account the admissible range of choke current and output-voltage pulsations at a selected switching frequency. A technique of voltage stabilization is investigated that is based on control of the perturbation impact by way of regulating the relative time that the key stays in extreme positions, which depends on the ratio between the actual and preset voltage amplitudes. Unlike in the case of control based on deviation (a closed-loop contour), in this case ensuring stability is not a problem because the cause of the change of output voltage is dealt with rather than the consequence. It is established that, at sufficiently high structure switching frequency, control by perturbation provides sufficient accuracy of voltage stabilization because of low choke resistance.
机译：在没有输入电压波形失真的情况下，研究了交流稳压器（极性反转脉冲转换器）的工作细节。基于稳定器的极限连续模型来确定稳定器性能，该极限连续模型对应于逐渐减小的切换周期。已经发现，在稳态谐波模式下，可以将反相脉冲转换器视为可调电压源，其输出电阻与扼流圈阻抗成正比。当输入电压在很宽的范围内变化而没有其预偏置时，显示出稳定输出电压的可能性。为了满足输出电压高频脉动平滑度的实际要求，已考虑到所选开关频率下的扼流电流和输出电压脉动的容许范围，获得了用于计算扼流圈电感和电容器容量的表达式。研究了一种电压稳定技术，该技术基于对扰动影响的控制，方法是通过调节按键停留在极限位置的相对时间来实现，该时间取决于实际电压振幅与预设电压振幅之间的比率。与基于偏差的控制（闭环轮廓）不同，在这种情况下，确保稳定性不是问题，因为处理输出电压变化的原因而不是结果。可以确定的是，在足够高的结构开关频率下，由于抗扼流电阻低，通过扰动进行控制可提供足够的电压稳定精度。

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