在文章的第一部分首先综述了三相半波可控整流电路实验原理、讨论电路中晶闸管的通断情况和不同负载时负载输出端的波形。但三相半波相控整流电路的缺点也很明显，主要表现在变压器二次侧电流含有直流分量，而且每个电源周期，每相绕阻都只有1/3时间有电流流过，变压器利用率比较低。为克服以上缺点，我进一步讨论了三相桥式可控整流电路中晶闸管的通断情况和不同负载时负载输出端的波形，将两电路进行对比可知三相桥式可控整流电路很好的解决了二次侧电流含直流分量的难题、变压器利用率也得到了提高。脉冲驱动对本实验来说至关重要，所以我接着讨论了整流电路中的脉冲驱动是怎样实现的。这部分内容构成了本论文的理论基础。 为便于电工学实验中三相可控整流电路学生实验顺利进行，我将实验中的难点及实验操作中需要注意的问题作了总结。实验中，我得到了三相半波可控整流电路电阻性负载、电阻电感性负载输出端的波形和三相桥式半控整流电路大电感性负载时负载输出端的波形，与理论分析相符。又依据三相半波可控整流电路实验中的记录数据我绘出了负载电压与电源电压的比值—控制角之间的关系曲线，得到了与理论图像一致的结果。

The first chapter sums up the condition of thyristor and the wave which comes from the load in Three-Phase Half-Wave Controlled Rectifier. But the lack of Three-Phase Half-Wave Controlled Rectifier is evident, it is the serious direct current on secondary winding. Moreover, every phase only have one third time in which there is current that the efficiency of transformer is low. In order to solve the shortage, I sum up the same thing in Three-Phase Full-Bridge Controlled Rectifier. Drawing a parallel between the two converters, we should know Three-Phase Full-Bridge Controlled Rectifier has a higher efficiency. At the same time, Driving Circuit is described in detail. This chapter is the academic base of the paper. In order to make the experiment in Three-Phase Controlled Rectifier easy to students, I pick the difficult points up and summary key points in this students' experiment. During the experiment I got images from different loads in Three-Phase Half-Wave Controlled Rectifier and Three-Phase Full-Bridge Controlled Rectifier which come up to the theoretical ones.