Influence Analysis of SVDU Fault on Nuclear Power Plant Control Model and Corresponding Technical Solutions
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摘要: 介绍了方家山核电厂安全级显示单元(SVDU)的故障对机组控制模式的影响,对SVDU上某些特定功能在后备盘控制模式(BUP)上的联锁原因进行了分析并给出了应对技术方案。对于技术方案实施后的影响,从多个方面进行了分析并得出结论:取消5组开关电厂计算机信息和控制系统(KIC)模式/BUP模式切换联锁逻辑后,不仅不会对机组的安全运行产生影响,而且还避免了在KIC可用的情况下,由于SVDU故障而导致机组控制模式切换至BUP模式,甚至可能导致机组进入后撤模式。
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关键词:
- 电厂计算机信息和控制系统(KIC) /
- 后备盘控制模式(BUP) /
- 安全级显示单元(SVDU) /
- 切换 /
- 影响分析
Abstract: This paper introduces the fault analysis of FJS NPP SVDU of the unit control mode, analyzes the reasons and gives corresponding technical solutions. After the implementation of the technical program, this paper analyzes from several aspects: the elimination of 5 groups of KIC/BUP switch logic interlocking switches will not affect the safe operation of the unit. It also avoid the switch of unit control mode to BUM or even the retreat mode of the unit resulting from SVDU failure when the KIC control mode is available.-
Key words:
- KIC /
- BUP /
- SVDU /
- Switch /
- Influence analysis
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