Design of Virtual Simulation Experiment of DC Bias Risk of Power Transformer Induced by Subway
The leakage of subway stray current,especially the caused transformer DC bias problem,is related to the normal and stable power supply of urban power grid.In order to improve the risk prevention awareness and ability of undergraduates in related majors,combined with the teaching and test requirements of"Traffic Introduction"and"Urban Rail Transit Power Supply Technology",a virtual simulation experiment system of DC magnetic bias risk of power grid transformer caused by stray current in subway was designed and developed.The experimental system includes three scenes,i.e.,subway tunnel,subway substation and 220kV substation,and sets 10 interactive experimental operations.The virtual simulation experiment system closely integrates theoretical teaching,experimental teaching and engineering application,and combines the educational concept of engineering education certification to effectively improve the ability of undergraduates to solve complex engineering problems.
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