The power electromotor of vertical Wind Tunnel is an important part as human heart, it was built in obturation fan section. In order to assured the running security of power electromotor, it must to use the ventilating system. In this article, the current situation of power electromotor of other wind tunnel is introuduced, ventilator has been controlled by inverter, it was setted in the automatization condition of power system ,the air current of ventilator is automated change by the rotate speed of power electromotor and the temperature of stator, the automatization enhanced, the electricity consumption has been debased, the startup condition of ventilator has been ameliorated, it was evidence to reduce the noise of ventilator, it is very worthy of abroad extend.%风扇电动机是风洞的心脏,安装在近乎密闭的风扇段内.为了保证风扇电动机安全运行,必须采取通风冷却措施.本文分析了其他风洞风扇电动机通风系统现状,提出立式风洞风扇电动机通风机采用变频调速控制,嵌入动力系统自动化环境,通风量随风扇电动机转速和定子温度自动变化,提高了自动化程度,节约了电能,改善了通风机起动条件,降噪效果明显,有较大推广应用价值.
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