关于火车控制车载系统的弹性评估方法的研究
Jinping Qi1, Jinhui Shi2, Hanqing Tao3,4
1Research Institute, Lanzhou Jiaotong University, Lanzhou, 730070, China.
Heliyon
|May 20, 2024
概括
本研究介绍了火车控制系统的弹性评估方法,使用可靠性来测量故障后的性能. 调查结果显示,恢复后的性能略有下降,突出显示需要进行适应性操作调整.
科学领域:
- 铁路工程 铁路工程是指铁路工程.
- 系统可靠性工程 系统可靠性工程
- 控制系统 控制系统
背景情况:
- 在故障后评估火车控制系统的性能具有挑战性.
- 系统故障取决于时间,影响运营连续性.
- 可靠性是评估系统弹性的一个关键指标.
研究的目的:
- 为火车载控制系统提出一种新的弹性评估方法.
- 在故障恢复后量化系统性能和弹性.
- 提供对高速铁路智能维护的见解.
主要方法:
- 利用离散时间贝叶斯网络进行时间依赖的可靠性分析.
- 采用指数恢复模型来定义恢复期间的性能曲线.
- 应用了弹性三角形面积方法来量化弹性大小.
主要成果:
- 拟议的方法量化了故障后的系统弹性.
- 对于CTCS3-300T系统的冷待机和热待机设计,其弹性分别为89.44%和87.34%.
- 在故障恢复后观察到系统性能略有下降.
结论:
- 弹性评估方法有效地衡量故障后的性能.
- 调查结果表明,需要对运营计划进行调整,以减轻网络影响.
- 该方法为高速列车控制系统的智能维护提供了理论基础.
相关概念视频
Transient and Steady-state Response
175
In control systems, test signals are essential for evaluating performance under various conditions. The ramp function is effective for systems undergoing gradual changes, while the step function is suitable for assessing systems facing sudden disturbances. For systems subjected to shock inputs, the impulse function is the most appropriate test signal.
These test signals are integral in designing control systems to exhibit two key performance aspects: transient response and steady-state...
These test signals are integral in designing control systems to exhibit two key performance aspects: transient response and steady-state...
175
Control Systems
1.1K
Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
At the heart...
At the heart...
1.1K
Feedback control systems
305
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
305
Root-Locus Method
146
A cruise control system in a car is designed to maintain a specified speed automatically by adjusting the gas pedal. The system continuously measures the vehicle's speed and makes fine adjustments to the pedal to achieve this goal. The root locus method is particularly useful for understanding how the cruise control system's behavior changes under varying conditions, such as when the car goes uphill, downhill, or faces strong wind resistance.
This system can be represented by a block...
This system can be represented by a block...
146
Control Systems: Applications
602
Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The...
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The...
602
Reclosers and Fuses
101
Automatic circuit reclosers enhance the protection of distribution circuits by interrupting and auto-reclosing an AC circuit according to a preset sequence. They effectively manage temporary faults on overhead distribution lines, often caused by tree limbs or wildlife, by briefly disrupting service to improve overall reliability. However, contact with reclosers or energized broken conductors on the ground can pose serious hazards.
A comprehensive protection scheme for radial distribution...
A comprehensive protection scheme for radial distribution...
101


