基于S7-200的中小型水电站气系统的设计开发

The Design and Development of Gas System of the Small and Medium-sized Hydropower Stations Based on S7-200 PLC

空气压缩机自动控制系统是水电站气系统的主要组成部分,它的可靠运行对电厂的安全稳定运行具有重要作用。针对传统空气压缩机自动控制系统在实际运行中的不足,提出基于s7-200的PLC控制取代传统继电器控制的方案,在实际应用中取得了满意的效果,很适合对中小电站同类系统的改造。

Automatic control system of air compressors is a major component of the hydropower station gas system. Its reliable operation plays an important role in the safe and stable operation of power plants. For the insufficiency of automatic control system of conventional air compressors in the actual operation. It is proposed that the s7-200 PLC control program be used to replace the tradi- tional relay control, and it has achieved satisfactory results in practical applications. This program is very suitable for the transformation of the similar system of small and medium-sized power stations.