摘要
基于传统的高压直流输电换流阀用密闭式循环水冷系统,结合高温缺水地区环境条件,研究采用冷水机组、蓄冷与空气冷却器组合的复合式冷却方式,并根据不同的环境温度给出了相应的冷却策略,对复合式冷却方式在不同环境条件下的应用进行分析,通过试验来验证分析结果,实现了根据进阀温度要求进行相对应的空冷器、制冷机组以及蓄冷罐放冷的逐级加载和反向卸载功能,使系统运行更加合理,逻辑控制更加直接,自动化程度更高,可靠性更强,提高了换流阀阀外冷设备对环境温度的适应性,保证了直流输电换流阀正常工作。
Abstract ：The conventional HVDC converter valve closed cycle cooling system based on the combination of environmental conditions of high temperature and drought area, using composite cooling chillers, cold storage and air cooler combination, and according to the ambient temperature are given different cooling strategies accordingly, were used in the analysis of the different environmental conditions composite cooling method, the analysis result is validated through experiment, achieved the corresponding air cooler, refrigeration and cold storage tank cold loading and reverse unloading function according to the valve inlet temperature, make the system more reasonable and logical control is more direct, higher degree of automation, reliability, improve the cold exchange equipment valve of environmental temperature adaptability, to ensure the normal work of HVDC converter valve.
出处
《电力工程技术》
2017年第4期54-58,共5页
Electric Power Engineering Technology
基金
广州市科技计划产学研协同创新重大专项(2015-08030019)
广州市产学研协同创新重大专项(20160401-0006)
关键词
高温缺水
冷却系统
换流阀
冷水机组
high temperature water shortage
cooling system
thyristor valve
water chiller
