换流阀冷却系统主回路流量关联进阀压力的跳闸保护逻辑研究

Research on Trip Protection Logic of the Main Circuit Flow Correlation Inlet Valve Pressure of the Converter Valve Cooling System

针对特高压换流阀冷却系统的主回路流量需关联进阀压力的跳闸保护逻辑,通过分析涡街流量计的工作原理、安装要求、内部结构,结合主回路流量与进阀压力的关系,得出阀冷系统流量关联压力跳闸保护逻辑的合理性、可靠性,并针对涡街流量计选型优化,提出跳闸保护逻辑可优化方案。

Aiming at the trip protection logic of the main circuit flow of the UHV converter valve cooling system that needs to be associated with the inlet valve pressure,by analyzing the working principle,installation requirements and internal structure of the vortex flowmeter,combined with the relationship between the main circuit flow and the inlet valve pressure,the rationality and reliability of the flow-associated pressure tripping protection logic of the valve cooling system are obtained,and the tripping protection logic can be optimized for the selection and optimization of the vortex flowmeter.