莱城发电厂DCS系统改造及应用

The DCS System Improvement and Application in Laicheng Power Plant

本文介绍了莱城发电厂在#3机组DCS改造过程中,所进行的研究及实施情况。此次改造包含了电子间工程改造、机柜底座加工安装、电缆桥架敷设、ECS系统改造、大屏幕改造等一系列施工。通过热控系统的一体化改造,得到一个全新的分散控制系统,改造后系统在降低发电煤耗取得了显著成效,机组控制系统的性能和自动化水平比改造前也有较大的提高。系统改造通过后续调整试验,安全、平稳地切换到新系统运行。该项目的成功实施对实现同类型电厂DCS系统改造具有重要的借鉴意义。

This paper introduces the research that l,aicheng Power Plant did during the DCS improvement process of #3 set and its implementation.The DCS system improvement contains a series of construction,such as the electronic room reform,the processing and installation of the equipment cabinet base,cable bridge laying, ECS system reform got a brand new di as well as large screen.Through the integration reform of stributed control system. nd the performance and improved obviously th operation saf〉ly and s improvement of the sa After auto reform, the mation level system obtained the thermal control system we＇ve striking success in reducing the of the generator set＇s I system have been an before.By the follow-up adjustment test the improved system switched to a new system moothly.The successful reform of this project has been of significance for the DCS system me type in power plant.