A high-speed train cruise control method based on self-triggering mechanism
A high-speed train, operation control technology, applied in the direction of adaptive control, general control system, control/regulation system, etc., can solve the problems of small sampling period, excessive use of computing and communication resources, etc., to reduce the number of communications, ensure Stability and robustness, the effect of improving computational efficiency
Active Publication Date: 2022-01-28
BEIJING JIAOTONG UNIV
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Problems solved by technology
The sampling period is usually small, given that it is determined based on the worst case, which often leads to excessive use of computing and communication resources
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[0082] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0083] In this section, numerical experiments will be conducted to verify the effectiveness of the proposed method for real-time control of high-speed trains. We consider a high-speed train with 8 carriages. Time-varying parameters in train models Other parameters of the high-speed train are listed in Table 1.
[0084] Table 1: High-speed train parameters
[0085]
[0086] First, the effectiveness of robust and efficient self-triggering controllers under different scenarios is investigated. Then, comparative experiments are conducted on the proposed strategy and other traditional methods, and the results on different performance metrics are discussed.
[0087] In the following examples, we verify the performance of the proposed self-triggering controller for high-speed train cruise control under different scenarios. The considered simulation level ra...
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The present invention is a high-speed train cruising operation control method based on a self-triggering mechanism. S1: consider the uncertainty of the basic resistance parameters of the train during the train operation, and establish a dynamic model of the train operation process. S2: According to the model established by S1, collect The real-time position and speed information of the train, calculate the deviation between the real-time state of the train and the tracking state, and design event trigger conditions based on the deviation; S3: Based on S2, design the state feedback control gain based on event-triggered control and calculate the control input and Event trigger parameters; S4: Calculate the execution time based on the event trigger parameters of S3, and obtain the interval time for recalculating the control input next time; judge whether the current time has reached the time when the control input needs to be recalculated, and if this time is not reached When , the calculated control input is applied to each train; otherwise, the train state is collected again and the control input is calculated, and the loop is performed until the train stops.
Description
technical field [0001] The invention relates to the field of high-speed train cruise control. More specifically, it relates to a robust and efficient high-speed train cruising control method based on a self-triggering mechanism. Background technique [0002] Compared with other modes of transportation, high-speed rail is fast, comfortable and more environmentally friendly. With the increasing demand for passenger transport, the development of high-speed railways has received more and more attention. High-speed trains will inevitably be affected by external disturbances during operation, which will cause the train operating state to deviate from the preset speed curve, thereby reducing the operating efficiency of high-speed railways. Consider that high-speed trains can run at speeds up to 350km / h. To cope with such high speeds, it is necessary to design an effective train control strategy to ensure speed tracking accuracy under disturbance conditions. [0003] With the de...
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IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 李树凯王悉杨立兴高自友唐涛
Owner BEIJING JIAOTONG UNIV