国产DCS系统在火电600MW机组上的首次应用设计

发布时间：2018-02-22 14:58

本文关键词： 火力发电厂 600MW机组分散控制系统给水控制系统控制策略　出处：《西安石油大学》2014年硕士论文　论文类型：学位论文

【摘要】：近20年来，作为发电机组控制系统的DCS系统设备，一直是国外DCS系统的天下。上世纪九十年代后期，国产DCS系统虽然进入了300MW机组控制工程。然而，直到本世纪初，国产化DCS系统尚未进入600MW机组控制工程。为打破大型火力发电机组DCS系统长期被国外垄断的格局，我国必须研发自主知识产权的DCS控制系统来满足工程需要。本文以600MW机组首次应用国产MACS集散控制系统为背景，将介绍该系统软硬件及系统结构组成，并设计600MW机组的控制系统总体方案。本文选取单元机组锅炉汽包给水调节系统为研究对象，设计了给水调节系统各信号的测量校正原则和控制策略，并通过MACS系统软硬件组态实现。最后，选择机组在升降负荷、负荷稳定等不同工况下，给水控制系统对汽包水位的实际控制效果，，证明了各项性能指标控制在设计要求范围内，使机组安全稳定运行，满足了工程实际需要。
[Abstract]:In the last 20 years, the DCS system equipment, as the control system of generator set, has been the world of foreign DCS system. In -10s, although the domestic DCS system entered the 300MW unit control project, however, until the beginning of this century, the domestic DCS system entered the 300MW unit control project. The home-made DCS system has not yet entered the 600MW unit control project. In order to break the situation that the DCS system of large thermal power generating set has been monopolized by foreign countries for a long time, our country must develop the DCS control system with independent intellectual property rights to meet the engineering needs. In this paper, based on the first application of domestic MACS distributed control system for 600MW unit, the software and hardware of the system and the structure of the system are introduced. The general scheme of the control system of 600MW unit is designed. In this paper, the principle and control strategy of the signal measurement and correction for the boiler drum feedwater regulation system of the unit unit are designed. Finally, the actual control effect of feed water control system on drum water level under different working conditions such as lifting load and load stabilization is selected, which proves that the control of various performance indexes is within the range of design requirements. Make the unit run safely and stably, and meet the actual needs of the project.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM621

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