使用外源输入和神经网络的神经网络的非线性自回归使用无刷直流电机的扭矩和转速预测
Muhammad Aseer Khan1, Dur-E-Zehra Baig2, Husan Ali3
1Department of Electrical Engineering, Air University, Aerospace and Aviation Campus, Kamra, 43570, Pakistan. 215221@aack.au.edu.pk.
Scientific reports
|July 27, 2025
概括
本研究引入了带有外源输入的非线性自回归神经网络 (NARX-NN),用于准确预测无刷直流 (BLDC) 电机转速和扭矩. 数据驱动模型有效地捕捉复杂的动态,在工业应用中提供增强的控制和故障检测.
科学领域:
- 电气工程 电气工程
- 控制系统 控制系统
- 人工智能的人工智能
背景情况:
- 无刷直流 (BLDC) 电机在工业中至关重要,但它们的非线性动力学使准确的扭矩和转速预测变得复杂.
- 现有的方法很难准确地模拟BLDC电机的复杂行为.
研究的目的:
- 开发一个数据驱动模型来预测BLDC电机扭矩和转速.
- 利用带有外源输入的非线性自行回归神经网络 (NARX-NN) 来捕捉非线性系统动态.
- 为了验证模型的准确性和稳定性,用于实时控制应用.
主要方法:
- 使用了具有外源输入 (NARX-NN) 架构的非线性自回归神经网络.
- 训练了NARX-NN模型,使用来自基于Simulink的BLDC电机模型的输入输出数据.
- 在不同的输入电压和负载条件下模拟电机行为,以生成训练数据.
主要成果:
- 实现了BLDC电机转速的高预测精度,在训练,验证和测试集中R值为1.
- 对于低至0.0062的MSE值和0.9998.8的R值,对扭矩的预测准确度非常出色.
- 该NARX-NN模型有效地学习了BLDC电机的非线性多输入多输出 (MIMO) 动态.
结论:
- 拟议的NARX-NN模型提供了一个强大的,准确的方法来预测BLDC电机扭矩和转速.
- 该模型的性能超过了现有的方法,证实了它的优越性.
- 这种预测工具适合集成到实时控制系统中,以提高效率和检测故障.
相关概念视频
Electro-mechanical Systems
1.2K
Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
1.2K
Time-Domain Interpretation of PD Control
180
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
Consider the example of control of motor torque. Initially, a positive...
180
Net Torque Calculations
9.7K
When a mechanic tries to remove a hex nut with a wrench, it is easier if the force is applied at the farthest end of the wrench handle. The lever arm is the distance from the pivot point (the hex nut in this case) to the person’s hand. If this distance is large, the torque is higher. Only the component of the force perpendicular to the lever arm contributes to the torque. Therefore, pushing the wrench perpendicular to the lever arm is more advantageous. If multiple people apply force to...
9.7K
Torque On A Current Loop In A Magnetic Field
4.7K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
4.7K
Back EMF
3.3K
Generators convert mechanical energy into electrical energy, whereas motors convert electrical energy into mechanical energy. A motor works by sending a current through a loop of wire located in a magnetic field. As a result, the magnetic field exerts a torque on the loop. This rotates a shaft, extracting mechanical work from the electrical current sent in initially. When the coil of a motor is turned, magnetic flux changes through the coil, and an emf (consistent with Faraday's law) is...
3.3K
Force On A Current Loop In A Magnetic Field
3.4K
Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical work. In motors, wire loops are enclosed in a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate. The direction of the current is reversed once the loop's surface area is lined up with the magnetic field, causing a constant torque on the loop. During the process,...
3.4K


