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| 摘要: |
| 目前某些业已运行的200MW机组存在电气控制系统技术落后、继电保护配置不合理、厂用电切换速度慢、可靠性差等问题。通过对这些问题的分析，根据新型数字设备的采用必然导致发电厂电气系统设计变化的实际情况，结合200MW机组技术改造设计中的一些做法，介绍分散控制系统DCS(Distributed Control System)在200MW发电机组电气控制系统中的应用及工程设计方法、继电保护出口的更改及配置的变化、用数字设备构成的备用电源自动投入逻辑等有关问题。说明这些工程设计变化是可行的，供相似类型发电机组设计工作参考。 |
| 关键词: 设计 分散控制系统 保护出口 厂用电切换 |
| DOI： |
| 分类号:TM762 TM769 |
| 基金项目: |
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| Analysis and research of electric technical innovation design for 200 MW unit |
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WANG Hong-bin 1 YIN Xiang-gen 1 CUI Dong-hui 2
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| Abstract: |
| For the operating200MW units,the electric control system technically dr ops behind,the protective relays is improperly configured and the switchover of plant power-supply is slower and unreliable.Accordingly,the application of new-type digital equipment will naturally lead to the design change of its ele ctric system.Combined with some solutions in the technical innovation of200 MW unit,the application of DCS(Distributed Control System)in electric control system,its engineering,and the change in protection exit and configuration ar e introduced.The automatic switch-on logic of spare power-supply,which is ba sed on digital equipment ,is also presented.All these changes in engineering d esign are feasible. |
| Key words: design,DCS,protection exit,plant power-supp ly switchover |
