Heavy haul train cruise control method based on periodic intermittent control

Abstract

The invention provides a heavy haul train cruise control method based on periodic intermittent control. The heavy haul train cruise control method based on the periodic intermittent control comprises the steps that S1, a heavy haul train dynamic model which takes basic resistance parameter uncertainty into account is established; S2, a state feedback control law which exists under the condition of a periodic intermittent control framework is established; and S3, a periodic intermittent controller which exists under the condition of the input constraint is designed, specifically, a specific control method comprises the steps that S31, the running period T and the working time are set; S32, when the time is located in the working time interval, the control force u(t) is calculated through a linear matrix inequality and carried out in each subsystem to conduct control; S33, when the time is not located in the working time interval, the control is not applied at this moment; and S34, the step S32 and the step S33 are repeated until a system stops working.

Description

technical field [0001] The invention relates to the field of heavy-duty train cruise control. More specifically, it relates to a heavy-duty train cruise control method based on periodic intermittent control. Background technique [0002] The heavy-haul railway system is considered to be one of the most important means of transporting bulk cargo, and has significant advantages in terms of safety, convenience, and economic cost. It is estimated that heavy-haul railways account for more than 60 percent of China's total coal shipments. Compared with other types of trains, heavy-duty trains are usually 2 kilometers long and can carry up to 20,000 tons. The large size and large inertia of heavy-haul trains put forward high requirements for train control strategies, so ensuring the safety, energy saving and punctuality of heavy-haul trains has important practical significance for promoting heavy-haul railway transportation. [0003] At present, there are many research results on...

AI Technical Summary

Problems solved by technology

However, since several locomotives are required to provide enough power for the whole train, this modeling method is usually difficult to realize the cooperation of different locomotives, and because the model ignores the internal force of the train, it may lead to breakage and decoupling of the coupler in some cases, thus affecting Operational safety poses a potential hazard

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