巨型晶闸管在大型直流电动机拖动中的应用

巨型晶闸管在国内首次成功地用于大型风洞的动力系统──大型直流电动机拖动系统中，使大型直流拖动的控制系统简化，１０００—３０００ｋＷ系统简化到一个三相全控桥式整流电路，或两个三相全控桥式整流电路并联输出的技术问题上，而且由于系统简单化，潜在的故障因素减少，可靠性增强，维护的工作量也大大减少。本文介绍风洞动力控制系统的实用调速方法，以及用计算机控制速压的方法。

Enormous Thyristor Used in the Large Power D C Motor Transmission

The enormous thyristor is used successfully in the power system of the large wind tunnel for transmission system of the large power D C motor, The use of an anormous thyristor in the large power D C motor transmission makes the controled system of the large D C motor transmission simple into change technique. The technical question may be simplified to change system of 1000kW to 3000kW into a three phase totally controlled bridge-rectifier or an output of two three-phase totally controlled bridge-rectifier connected in parallel. Furthermore due to the simplicity of the system sources of potential fault factors are reduced, resulting in raising the reliability and reducing work capacity in maintenace. This paper also introduces aerodynamic experimental equipments, that is, the practical speed-adjustment method of the power controlled system of the wind tunnel and the computer control method for the dynamice pressure regulation.