输电线路架空地线取电系统电源变换模块仿真设计

Simulation of Source Transformation Module for Electricity Generating System Based on Overhead Ground Wires in the High-Voltage Power Lines

为实现输电线路架空地线取电系统功能,设计出输出为12 V的系统配套电源变换模块。根据系统需求,设计了整流电路和电压变换电路,搭建了电路模型,分析了电路的输入输出特性,优化了电路控制信号脉冲占空比,从而得到相对稳定的直流电压源,该电源变换模块可以实现9 V～100 V交流输入到12 V直流输出的转换。通过设计优化电压变换电路将整流电路输出的直流电压进行转换,拟合出最优占空比随输入电压变化曲线,得到系统所需的12 V直流电源。

In order to realize the function of the electricity generating system for source transformation module,system mated 12 V DC source is designed.According to the requirement of this system,the rectifier circuit and voltage change circuit are designed and simulated,the input-output characteristics of the circuit is analyzed,and the pulse duty factor of the control signal is optimized.As result,this power conversion module can convert 9 V AC^100 V AC to the output of 12 V DC source,and the output voltage is relatively stable.By means of designing the voltage change circuit,the relation curve is optimized between the duty ratio and input voltage,the output voltage of the rectifier circuit can be convert to 12 V DC,which is in need of the system.