摘要
现有直流融冰装置功能检测性试验方法将输出电压、电流作为单一因素分别检测，不能有效模拟融冰装置带线路运行时的实际工况，检测结果缺乏可靠性．基于全压大电流检测试验方法，提出水即为导电介质又作散热介质的模拟负载设计思路，制作了等效负载装置，在1／loo的缩比功率下，开展了等效负载验证性试验：在30min通流时间内，采用多路温度巡检仪测量并记录了散流电极极板温度；同时监测回路电压与电流，总结了负载装置电阻随通流时间增加的变化规律；通过不同水流初速条件下的等效负载试验，确定当人口流速达到8．8m^3／h时，极板温度和装置电阻能在通流时间内达到稳定，满足工程检测性试验要求，验证了等效负载可行性和该检测试验方法的工程推广价值．
Conventional test methods for DC deicer＇s function detection regard the output voltage and current as separate detection targets, which cannot represent the real operational condition and lead to incon- vincible conclusions. In this paper, a high-power analog load is made while the idea of using water both as conductive and cooling medium is presented. Under 1/100 scaled power, confirmatory tests are conducted： In 30 mins, a multi-channel temperature logging device is used to measure and record the temperature of plate electrodes; with the circuit current and voltage monitoring, variation trend of the resistance of the load device is studied. When the inlet flow rate reaches 8.8 m^3/h, temperature of electrodes and resistance of load device achieve stability during the test, which verifies the feasibility and t promotional value of the test method.
作者
余轶
文习山
伍昆
蓝磊
王羽
刘长青
陈胤
YU Yi;WEN Xishan;WU Kun;LAN Lei;WANG Yu;LIU Changqing;CHEN Yin(School of Electrical Engineering, Wuhan University, Wuhan 430072, Chiri)
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2018年第4期335-340,共6页
Engineering Journal of Wuhan University
