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首页> 外文期刊>Circuits and systems >Indirect Output Voltage Control in Negative Output Elementary Super Lift Luo Converter Using PIC plus FLC in Discontinuous Conduction Mode
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Indirect Output Voltage Control in Negative Output Elementary Super Lift Luo Converter Using PIC plus FLC in Discontinuous Conduction Mode

机译：在不连续传导模式下使用PIC和FLC在负输出基本型Super Lift Luo转换器中进行间接输出电压控制

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摘要

In this paper, the design of a proportional integral controller (PIC) plus fuzzy logic controller (FLC) for the negative output elementary super lift Luo converter (NOESLLC) operated in discontinuous conduction mode (DCM) is presented. In spite of the many benefits viz. the high voltage transfer gain, the high efficiency, and the reduced inductor current and the capacitor voltage ripples, it natured with non-minimum phase. This characteristic makes the control of NOESLLC cumbersome. Any attempt of direct controlling the output voltage may erupt to instability. To overcome this problem, indirect regulation of the output voltage based on the two-loop controller is devised. The savvy in the inductor current control improves the dynamic response of the output voltage. The FLC is designed for the outer (voltage) loop while the inner (current) loop is controlled by the PIC. For the developed -19.6 V NOESLLC, the dynamic performances for different perturbations (line, load and component variations) are obtained for PIC plus FLC and compared with PIC plus PIC. The study of two cases is performed at various operating regions by developing the MATLAB/Simulink model.
机译：本文提出了一种用于非连续导通模式（DCM）的负输出基本超升力Luo转换器（NOESLLC）的比例积分控制器（PIC）和模糊逻辑控制器（FLC）的设计。尽管有很多好处，即。它具有非最小相位特性，具有高电压传输增益，高效率以及减小的电感器电流和电容器电压纹波。该特征使得对NOESLLC的控制繁琐。直接控制输出电压的任何尝试都可能导致不稳定。为了克服这个问题，设计了基于二回路控制器的输出电压的间接调节。电感器电流控制中的精明之处可改善输出电压的动态响应。 FLC设计用于外部（电压）环路，而内部（电流）环路由PIC控制。对于已开发的-19.6 V NOESLLC，获得了PIC plus FLC的不同扰动（线路，负载和元件变化）的动态性能，并将其与PIC plus PIC进行了比较。通过开发MATLAB / Simulink模型，可以在不同的操作区域进行两种情况的研究。

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