摘要
为解决换流站阀冷系统无法准确获知阀外冷系统流量值及其散热量的问题,利用流体分析软件Flowmaster对换流阀水冷系统三通调节阀内部流动特性进行了计算分析。以上海某直流输电工程换流阀水冷系统作为参考,收集设备参数及控制策略,建立换流阀水冷系统流体仿真模型,通过控制三通调节阀阀门开度模拟计算得出内外冷流量值,同时以流量系数公式为基础进行经验理论计算。仿真结果与经验理论分析结果极为吻合,并依据仿真及计算结果绘制了换流阀内外冷系统流量与三通调节阀阀门开度的关系曲线,为换流阀水冷系统工程应用及计算提供了理论基础。
In order to solve the problem that the converter valve cooling system cannot accurately know the flow value and heat dissipation of the external cooling system,the flow characteristics of the three-way control valve in the converter valve cooling system are simulated and analyzed by using the flowmaster software.Taking the HVDC converter valve cooling system in Shanghai as a reference,the equipment parameters and control strategies are collected,the fluid simulation model of the converter valve cooling system is established,and the internal and external cooling flow values are calculated by controlling the valve opening of the three-way control valve,and the empirical theoretical calculation is carried out based on the flow coefficient formula.The simulation results are in good agreement with the empirical theoretical analysis results,According to the simulation and calculation results,the relationship curve between the flow of the internal and external cooling system of the converter valve and the opening of the three-way control valve is drawn,which provides a theoretical basis for the engineering application and calculation of the HVDC converter valve cooling system.
作者
孔德卿
严鹏航
俞葆青
任海莹
Kong Deqing;Yan Penghang;Yu Baoqing;Ren Haiying(NARI(State Grid Electric Power Research Institute)Group Corporation,Nanjing,211106;Beijing Guodian Futong Science,and Technology Development Co.,Ltd,Beijing,100070)
出处
《制冷与空调（四川）》
2021年第2期234-237,242,共5页
Refrigeration and Air Conditioning
