【摘要】 本文叙述了工矿电机车牵引变频调速器的基本原理,从硬件部分介绍了系统的构成,重点分析了这种变频调速器的控制电路,提出了电流采样的实现方案,研究了系统速度检测电路及其测量方法,并通过实际运行结果加以验证。更多还原

【Abstract】 This article narrated the basic principle of driving the frequency conversion speed regulator in industry and mining electric locomotive, introduced the system constitution from the hardware architecture, and emphatically analyzed control circuit used in this kind of frequency conversion speed regulator. It also proposed the realization plan to current sampling, studied the measuring circuit and its speed-measuring technique of the system, and confirmed it with the actual result.更多还原