利用单片机控制变频调速技术实现机车发油系统恒压供油

Applying single-chip-microcomputer-based variable frequency control technology to realize constant pressure fuel supply of locomotive fuel supply system

介绍了利用 80 5 1单片机控制的变频调速技术对现有机车发油系统进行改造 ,变为恒压发油系统 ,给出了系统的硬件结构及单片机控制程序框图。在系统中 ,80 5 1CPU产生三相交流调频控制信号 ,经驱动后 ,输送到逆变主桥路 ,实现恒压调速 。

We use 8051 single-chip microcomputer-based variable frequency control technology to reform the existing locomotive fuel supply system to realise constant pressure fuel supply. The structure of hardware and software of this system and the control program chart are given in this paper. In this system, 8051CPU produces three-phase AC variable frequency control signal. This signal is amplified and then transmitted to the inverter to realise variable frequency speed regulation. In this way , the aim of constant pressure fuel supply can be achieved.