高速铁路牵引计算层次约束方法

Hierarchical Restriction Method for the Traction Calculation of High-Speed Railway

为了实现高速铁路牵引计算过程的连续性和自动化,研究并提出层次约束方法。根据高速列车具有连续控制能力的技术特点,给出以限速约束为主线、辅以操纵约束的层次约束方法计算步骤。按照当前限速段的出口速度必须满足下一限速段限速、当前限速段的入口状态应是前一限速段的出口状态的要求,通过建立入口状态反馈机制实现限速约束,解决了牵引计算的连续性问题;通过标准操纵曲线的运用实现了操纵约束,解决了牵引计算结果的实施性问题。以京沪高速铁路牵引计算为例验证了层次约束方法的实用性。

Hierarchical restriction method was developed and proposed to realize the continual and automatic traction calculation of high-speed railway. The calculation steps which combined the speed restriction as the primary and the operation restriction as the secondary were given based on the continuous control ca- pability of high-speed trains. According to the requirement that the exit speed of the current speed-limited section must meet the speed limit of the next section and the entrance speed of the current section was equal to the exit speed of the front section, the problem in the continuity of traction calculation was solved by establishing the feedback mechanism of the entrances state to realize speed restriction. The problem in implementation of the traction calculation results was solved by realizing the handle restriction through the standard handle curve. The practicability of the hierarchical restriction method was verified by taking the traction calculation of Beijing-Shanghai high-speed railway as an example.