基于再生的无人挖掘机下降杆的MPC运动控制基于再生
Zhong Jin1,2, Mingde Gong1, Dingxuan Zhao1
1School of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, China.
Heliyon
|May 17, 2024
概括
模型预测控制 (MPC) 增强了无人挖掘机机器人臂的自主控制,与PID控制器相比,实现了精确的向下运动跟踪和优异的干扰拒绝.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 控制工程 控制工程 控制工程
- 液压系统 水力系统
背景情况:
- 由于复杂的液压和驱动模式,无人挖掘机控制具有挑战性.
- 精确控制机器人手臂的工作设备对于自主操作至关重要.
研究的目的:
- 开发和验证无人挖掘机机器人手臂向下运动的自主控制策略.
- 调查模型预测控制 (MPC) 对精确轨迹跟踪和干扰排斥的有效性.
主要方法:
- 开发了一个挖掘机繁荣的综合模型,整合了机械,液压和电气因素.
- 模型预测控制 (MPC) 应用于起下降过程.
- 对MPC在不确定的动态环境中的强度进行了理论分析.
- 验证是在使用现实参数的20液压挖掘机进行的.
主要成果:
- 在操作员操纵过程中,MPC算法实现了快速运动轨迹的精确跟踪.
- 该研究证明了MPC通过干扰应用的异常干扰排斥能力.
- 在20液压挖掘机上验证的性能显示了精确的弹杆下降控制.
- 在目标适应性和干扰排斥方面,MPC的表现优于PID控制.
结论:
- 模型预测控制 (MPC) 提供了一个强大而有效的解决方案,用于精确自主控制无人挖掘机工作设备.
- 由于MPC的卓越性能,它非常适合用于控制复杂机器人系统的快速应用.
- 开发的控制策略为未来无人挖掘机的先进运动控制奠定了基础.
更多相关视频
08:59Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators
Published on: June 13, 2022
2.6K
06:45Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
Published on: October 28, 2022
1.6K
相关概念视频
PID Controller
115
Proportional-Integral-Derivative (PID) controllers are widely used in various control systems to enhance stability and performance. In a thermostat, it adjusts heating or cooling based on the temperature difference between the actual and desired levels. They are often used in automotive speed systems, effectively managing sudden speed changes while maintaining a constant speed under varying conditions. On the other hand, PI controllers, commonly employed in voltage regulation, enhance stability...
115
Open and closed-loop control systems
727
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
727
PD Controller: Design
222
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
222
Generator Voltage Control
147
Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand,...
147
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
Feedback control systems
307
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...
307
