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随着现代控制技术的逐步发展,火力发电厂DCS系统控制也在不断更新,一些老DCS系统由于设备老化,可靠性下降,且无法满足现在自动控制的要求,并且由于DCS系统由于硬件、软件等的不断发展,老系统的备品备件厂家已停止生产,无法购买备品备件,进行升级改造迫在眉睫。本文介绍了邹县发电厂某机组在DCS升级改造中出现的一些问题,并进行了分析探讨,为其他控制系统改造提供一些参考,避免类似问题的发生。
With the gradual development of modern control technology, thermal power plant DCS system control is constantly updated, some old DCS system due to aging equipment, reliability, and can not meet the current requirements of automatic control, and because DCS systems due to hardware, software, etc. The continuous development of the old system of spare parts manufacturers have stopped production, spare parts can not be purchased, upgrade is imminent. In this paper, some problems that occurred in a certain unit of Zouxian Power Plant during the upgrading of DCS were introduced and analyzed. Some references for other control system reformation were given to avoid the similar problems.