晶闸管数字触发器的一种新算法--双余法

摘要

The traditional SCR triggers composed of analogical circuits,while the SCR digital triggers that take single chip computer as their cores have simple hardware, high precision, smart intelligence, facile central control and easy diagnosis ,and they will be the stars on the futures SCR control circuit stage. The common algorithm of SCR digital trigger,however,was not satisfying on response time,change rate of firing angle and stability. This paper presents a new algorithm for SCR digital trigger which can correct the defects of the past ones. The new method has simple calculation,rapid response time,good adaptability and high immunity and requires less resource. It has received a good result in the practice.%传统晶闸管触发器多用模拟电路实现，以单片机为核心的晶闸管数字触发器具有系统硬件简单可靠、精度高、智能程度高，便于集中控制，容易实现故障诊断等优点，是晶闸管控制电路的发展方向。一般的晶闸管数字触发器算法存在着响应时间长、触发角不可大幅变化和可靠性差等不足。本文提出了一种新的晶闸管数字触发器的算法。该算法克服了传统算法的上述缺陷，且计算简便、响应速度快、适应性好、抗干扰性强、占用系统资源少，并在实践中收到了非常好的效果。