Two axle heavy-duty rail cars are important traction equipment in the construction process of urban rail transit track laying.Currently,diesel engines are mainly used as the power source,and noise and exhaust emissions are generated during operation.To meet the increasing environmental requirements,a two axle pure electric heavy-duty rail car powered by a lithium battery pack and a permanent magnet AC transmission system was studied.There is no noise or exhaust emissions during operation.At the same time,the application of mature locomotive unit brakes as the entire vehicle braking actuator results in higher braking efficiency and reliability,which can adapt to environmental requirements in track laying construction scenarios.
关键词
纯电动轨道车/锂电池/永磁交流电传动系统/单元制动器
Key words
pure electric rail car/lithium battery/permanent magnet AC transmission system/unit brake