摘要
大功率采煤机牵引变频器散热问题不仅体现在IGBT上,也体现在变频器腔体内。为解决该问题,首先建立变频器热仿真模型,然后进行多物理场仿真分析,并基于结果进行了优化设计。仿真结果及试验测试表明,在相同条件下在变频器内部增加散热风扇不仅能大幅降低电抗器温度,同时能降低散热板和变频器腔体内空气温度。
The problem of heat dissipation for high-power shearer traction frequency converter is not only reflected in IGBT,but also in the converter chamber.In order to solve this problem,firstly the thermal simulation model of frequency converter was established,secondly the multi-physical field simulation analysis was carried out,and the optimal design was carried out based on the results.The results of simulation and test show that adding a cooling fan inside the frequency converter under the same conditions can not only significantly reduce the temperature of the reactor,but also lower the temperature of the cooling plate and the air inside frequency converter chamber.
作者
黄光忠
Huang Guangzhong(Tiandi Shanghai Mining Equipment Technology Co.,Ltd.,Shanghai 201014,China;Shanghai Co.,Ltd.,China Coal Technology and Engineering Group,Shanghai 200030,China)
出处
《煤矿机械》
2024年第6期82-85,共4页
Coal Mine Machinery
基金
天地科技股份有限公司科技创新创业资金面上项目(2023-TD-MS003)。
关键词
采煤机
变频器
散热
多物理场仿真
shearer
frequency converter
heat dissipation
multi-physical field simulation
