机动无人机对电磁干扰易感性的特征模式分析,以提高设计和性能
Peyman Hasani1, Seyed Mohamad Hashemi2, Alireza Sadeqi1
1Faculty of Electrical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran.
Scientific reports
|July 2, 2025
概括
电磁干扰 (EMI) 显著影响便携式电机驱动系统. 特性模式分析 (CMA) 确定了导致电机故障的关键频率,强调了无人机和类似设备中屏蔽的必要性.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 系统分析 系统分析
背景情况:
- 像无人机这样的便携式设备越来越多地使用电机驱动系统,引发了对电磁干扰 (EMI) 的担忧.
- 在这些关键系统中,EMI可能会降低性能并损害安全性.
- 了解发动机对EMI的敏感性对于可靠运行至关重要.
研究的目的:
- 使用特征模式分析 (CMA) 分析EMI对无刷和刷电机的影响.
- 识别导致电机故障的关键频率模式和辐射参数.
- 评估CMA在预测EMI对电机驱动系统的影响方面的有效性.
主要方法:
- 用特征模式分析 (CMA) 来研究对EMI的运动反应.
- 实验包括将电机暴露在2.45 GHz的22kW电磁源中.
- 研究了电机与电源的近距离以及相关布线的影响.
主要成果:
- 在2.1GHz,2.92GHz和2.98GHz确定了影响电机功能的显著EMI频率模式.
- 发动机故障发生在距离2.45 GHz源0.6米处.
- 广泛的电线通过诱导额外的电流来放大EMI效应,增加了电机的易感性.
结论:
- CMA在预测EMI对电机驱动系统的影响方面是有效的.
- 需要采取积极的屏蔽措施,以保护电子元件免受有害的辐射频率和功率密度的影响.
- 识别特定的EMI漏洞可以提高便携式电子设备的可靠性和安全性.
相关概念视频
Absolute Motion Analysis- General Plane Motion
273
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
273
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
Electromagnetic Fields
2.3K
Electric fields generated by static charges, often referred to as electrostatic fields, are characteristically different from electric fields created by time-varying magnetic fields. While the former is a conservative field, implying that no net work is done on a test charge if it goes around in a complete loop in the field, the latter is, by definition, not a conservative field; net work is done, and it is proportional to the rate of change of magnetic flux.
However, the observation of...
However, the observation of...
2.3K
Mesh Analysis for AC Circuits
423
In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
423
Characteristics of MOSFET
508
Metal-oxide-semiconductor field-effect Transistors, or MOSFETs, play a critical role in electronic circuits. They are primarily utilized for amplifying and switching signals.
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable...
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable...
508


