Capability analysis method suitable for high-speed railway

Abstract

The invention relates to a capability analysis method suitable for a high-speed railway. The method specifically comprises the following steps: A, preparing data in four aspects of line infrastructure, a train model, a signal system and operation organization parameters; B, according to different access types, dividing partition divisions, specifically, dividing the partitions into five types including a train receiving partition, a train departure partition, a station track partition, an interval partition and a line place partition; C, establishing different types of partition block time models under CTCS2 level and CTCS3 level based on the signal system workflow and in combination with different operation scenes; D, analyzing the capacity of a bottleneck link in operation of the high-speed railway, namely analyzing the capacity of the convergence line where the bottleneck possibly occurs from two indexes, namely the worst train interval and the worst average minimum train interval,of a station; and E, carrying out capability analysis on the section station integration to obtain a most unfavorable section station integration operation plan.

Description

technical field [0001] The present invention relates to the technical field of rail traffic control, in particular to a capability analysis method suitable for high-speed railways under CTCS-2 and CTCS-3 levels, and in particular to a high-speed railway bottleneck link capability under CTCS-2 and CTCS-3 levels Analysis method of section-station integration capability. Background technique [0002] The Chinese Train Control System (CTCS) is the key technology and core equipment to ensure the safety of high-speed railways and improve the transport capacity. The construction and operation have played an important role. Both of them use the entrance of the block zone occupied in front as the end point of the traffic permit, adopt the quasi-moving block method, and the train occupancy check is realized by the track circuit. The information transmission characteristics of the CTCS-2 train operation control system are that the train occupancy information is transmitted through the...

AI Technical Summary

Problems solved by technology

[0005] (1) There are many receiving / departing lanes at the station and there are more than one approaching roads for the same receiving / departing lane. There are often more than 20 receiving and departing routes at large stations, and there are many types of vehicles running on the lines. The calculation workload will be extremely heavy for the design interval of each vehicle under various possible route combinations;

[0006] (2) The arrangement of the incoming / departing lanes at the station is highly random, and the entering order of the lanes cannot be specified, so the operation diagram scheme cannot fix the entering order of the lanes, and only the various possible operation diagrams under various possible vehicle combinations Under the scheme, the average minimum receiving and departing intervals meet the design interval, so as to ensure that the design interval meets

The formula calculation method cannot realize the capacity analysis under all operation chart connection / departure schemes;

[0007] (3) The influence of the vehicle control model of the train overspeed protection system and the working process of the signal system on the ability is not considered, resulting in an excessive deviation between the actual ability and the theoretical ability;

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