可编程控制器及变频技术在变压器风冷却器系统中的应用

Application of programmable logic controller and frequency conversion technique in transformer air-cooling system

针对传统变压器强迫油循环风冷却器存在的缺陷,提出了基于可编程控制器及变频技术的大型变压器风冷却器控制系统的应用方案,阐述了该方案的功能、硬件、软件设计及其优点,指出可编程控制器及变频技术在大型变压器风冷却器控制系统具有较好的使用价值及发展前景。

Aimed at the limitations of traditional transformer forced-oil forced-air cooler, an application plan for large-size transformer air-cooling system is presented based on programmable logic controller （PLC） and frequency conversion technique. The system function, hardware, software design and advantages of the plan are expounded. It is pointed out that the proposed system has fine practicality and development prospects.