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使用高频环路的功率变换器具有几个突出的特点:电抗元件尺寸小,响应快,转换容易。这种变换器负载与环路电容无论串联或者并联都可以。环路电容与负载串联的变换器被负载春作电流源。本文研究了环路电容器与负载并联的DC—DC变换器。通过改变环路的频率使其输出的直流电压稳定。这种变换器相当于一个电压源,特别适用于电压源变换器。本文分析了这种变换器,在分析的基础上,提出了设计方法,画出了控制图,给出了实验变换器的实验结果。
Power converter using high-frequency loop has several outstanding features: small reactance components, fast response, easy to convert. This converter load and the loop capacitor can be connected in series or in parallel. The loop capacitor and load in series converter is loaded spring current source. This paper studies the DC-DC converter with a loop capacitor in parallel with the load. By changing the frequency of the loop, the output DC voltage is stabilized. This converter is equivalent to a voltage source, especially for voltage source converter. This paper analyzes the converter, on the basis of analysis, presents the design method, draws the control chart, gives the experimental converter experimental results.