论文部分内容阅读
前言本文介绍在实验室SCR串级调速系统的基础上,由一台Z80单板机实现全数字控制的次同步不可逆串级调速系统。系统的硬件线路及程序设计都较为简单。通过实验室运行性能良好,可以实现多种性能要求。並且稍加改进即可用于工矿企业生产过程。一、系统概述首先需要说明一点,由于此串级调速系统中是采用单板机的CTC定时中断来实现SCR触发角的输出控制的,而串级调速系统中通常使用的逆变角β为逆时序的。所以本系统触发角均用α角表示。
Preface This article describes the laboratory SCR cascade speed control system based on a Z80 single-board full digital control of the subsynchronous non-reversible cascade speed control system. System hardware circuit and programming are relatively simple. Through the laboratory running well, you can achieve a variety of performance requirements. And a little improvement can be used for industrial and mining enterprises in the production process. First, the system overview First, we need to explain that, because this cascade speed control system is the use of single-chip CTC timer interrupt to achieve the SCR trigger output control, and Cascade speed control system commonly used inverter angle β Inverse timing. Therefore, the system firing angle α angle.