介绍一种基于工控机构成的、具有可跟踪电源频率的、一周期内多次改变α角的新型晶闸管触发控制器。它是一种新颖的智能化仪器，在实时控制领域具有很高的实用价值。 A new thyristor trigger controller based on IPC is introduced, which can track the frequency of the power supply and change the α angle several times in a cycle. It is a kind of novel intelligent instrument, has very high practical value in the real-time control domain.