基于单神经元PID的高增益DC-DC变换器

HIGH GAIN DC-DC CONVERTER BASED ON SINGLE NEURON PID

为使光伏系统和燃料电池的输出电压适应于并网发电系统所需的电压等级,提出一种基于单神经元PID的高增益DC-DC变换器。基于耦合电感的升压单元,使变换器在原有的开关占空比D上,增加一个新的自由度来调节输出电压。钳位单元的引入,削弱了耦合电感漏感与半导体器件的电压尖峰,提升了变换器的效率。通过单神经元PID,增强变换器抗扰动能力。该文先分析所提变换器的工作模态,推出其性能特点,并与经典变换器做出比较。通过仿真模拟电路运行和搭建实验模型研究,验证理论分析的正确性和实验过程的准确性。

To adapt the output voltages of PV systems and fuel cells to the voltage levels required by grid-connected power generation systems.In this paper,a high-gain DC-DC converter based on single-neuron PID is proposed.The boost unit based on coupled inductance enables the converter to add a new degree of freedom to the original switching duty ratio D,to adjust the output voltage.The introduction of clamped units reduces leakage from coupled inductors and voltage spikes in semiconductor devices,and increases the efficiency of the converter.The jamming capability of the converter is enhanced by a single-neuron PID.In this paper,we analyze the mode of operation of the proposed converter,introduce its performance characteristics,and compare it with classical converters.The validity of theoretical analysis and the precision of experimental procedures are confirmed through circuit operation simulations and experimental modeling.