Operational processes
The traction system of power consumption refers to
energy consumption for getting power from a DC to supply
vehicle running. It usually accounts for 60% to 70% of total
energy consumption of vehicles.
The auxiliary system of energy consumption: the energy
consumed in the vehicle air conditioning equipment, air
compressors and other auxiliary equipment usually account
for 25% to 30% of total energy consumption of vehicles.
Control and lighting system energy consumption:
control device and lighting use a DC voltage of 1l0V. It
consumes energy consumption to account for 5% of the
total energy consumption of vehicles in general.
1) Operational vehicles
According to the statistics of energy consumption of
urban rail traffic such as Guangzhou, the energy
consumption of vehicles is approximately 40% per cent of
total energy consumption energy consumption. The mainly
energy consumption are Metro vehicle traction system, the
secondary system, control system, and lighting systems.
2) Station
Urban rail transit system typically sets a station each
1 � 1.5km. The station can be set on the underground, ground
and elevated. However, due to the lack of land resource at
urban in China and difficult for existing roads and housing
demolition, the vast majority of urban rail transit station
built under the underground.