Comprehensive energy-saving system of urban rail transit and comprehensive energy-saving method based on the system

Abstract

The invention discloses an urban railway transportation comprehensive energy saving system and a comprehensive energy saving method based on the system, and the train traction energy consumption can be reduced. The system comprises a dispatching center ATS, a ZC (zone controller) and a vehicle-mounted VOBC (vehicle on board controller), wherein train run time and planning time are calculated on the basis of flexible run chart time tables regulated in different time periods and sent to the vehicle-mounted VOBC, and after a vehicle-mounted ATO of the vehicle-mounted VOBC controls the train to arrive at a station and park, the run energy conservation grade to be performed in a next interval by the train is calculated through the advance departing state reported by the vehicle-mounted ATO andsent to the vehicle-mounted VOBC; the ZC is used for calculating the difference value of regenerative braking energy in the arrival train braking time in the current control zone and the energy required for planning run in the time periods of other trains in the same power supply zones, and when surplus energy exists, the surplus energy is converted into traction duration, and the traction duration is distributed and sent to the vehicle-mounted VOBCs of other trains; the vehicle-mounted VOBC is used for collecting corresponding energy-saving driving strategies to control train driving according to the information sent by the dispatching center ATS or the ZC.

Description

technical field [0001] Embodiments of the present invention relate to the field of signal control, and in particular to a comprehensive energy-saving system for urban rail transit and a comprehensive energy-saving method based on the system. Background technique [0002] With the rapid development of rail transit, the total energy consumption of the urban rail transit system increases rapidly. Among them, electricity consumption is the main form of energy consumption in the operation process. From the perspective of the main body of electricity consumption, electricity consumption is mainly divided into train traction energy consumption and power lighting energy consumption. The energy consumption of train traction is mainly generated by the traction network or the third rail supplying power to the train and the operation of the traction train. The energy consumption of power lighting includes the energy consumption of ventilation, air conditioning, lighting, elevators / esca...

AI Technical Summary

Problems solved by technology

However, because there is no unified and coordinated linkage operation and comprehensive management of energy saving in the system as a whole

The result of this is that on the one hand, each subsystem is fighting independently, and the implementation of energy-saving measures is also restricted by other subsystems; on the other hand, the energy-saving operation is single, and there is no effective linkage operation, resulting in unsatisfactory energy-saving effects.

Images