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相关概念视频

Fast Decoupled and DC Powerflow01:24

Fast Decoupled and DC Powerflow

178
The fast decoupled power flow method addresses contingencies in power system operations, such as generator outages or transmission line failures. This method provides quick power flow solutions, essential for real-time system adjustments. Fast decoupled power flow algorithms simplify the Jacobian matrix by neglecting certain elements, leading to two sets of decoupled equations:
178
Transmission Line Design Considerations01:23

Transmission Line Design Considerations

131
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
131
BIBO stability of continuous and discrete -time systems01:24

BIBO stability of continuous and discrete -time systems

373
System stability is a fundamental concept in signal processing, often assessed using convolution. For a system to be considered bounded-input bounded-output (BIBO) stable, any bounded input signal must produce a bounded output signal. A bounded input signal is one where the modulus does not exceed a certain constant at any point in time.
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
373
Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

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Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
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Multimachine Stability01:25

Multimachine Stability

150
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
150
Transmission-Line Differential Equations01:26

Transmission-Line Differential Equations

251
Transmission lines are essential components of electrical power systems. They are characterized by the distributed nature of resistance (R), inductance (L), and capacitance (C) per unit length. To analyze these lines, differential equations are employed to model the variations in voltage and current along the line.
Line Section Model
A circuit representing a line section of length Δx helps in understanding the transmission line parameters. The voltage V(x) and current i(x) are measured...
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相关实验视频

Updated: Jun 16, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

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由多模式双向收发器实现的低复杂度流弹性.

Ultan J Daly, Fortune Iga, Aleksandr Boldin

    Optics express
    |June 14, 2025
    PubMed
    概括

    OM5分级索引纤维为自由空间光学 (FSO) 通信提供了强大的解决方案,即使在动荡条件下,也可以在没有自适应光学的情况下实现高速,无错误的数据传输.

    科学领域:

    • 光学通信是指光学通信.
    • 光纤光学是指光纤的使用.
    • 无线光学无线光学

    背景情况:

    • 自由空间光学 (FSO) 系统面临机械不稳定性和大气动荡的挑战,导致扭曲和高损失.
    • 适应光学通常需要双向单模FSO系统来减轻这些扭曲.
    • 现有的系统在指针准确性和环境因素影响信号完整性方面扎.

    研究的目的:

    • 研究和比较双向FSO通信的步进指数和分级指数多模式光纤的性能.
    • 评估OM5分级索引纤维对FSO应用的适用性,重点关注其模式属性和视野.
    • 为了证明高吞吐量,无错误的FSO通信没有自适应光学.

    主要方法:

    • 模拟一个400米的FSO通道,具有不同的流水平 (D/r0=3和D/r0=9).
    • 步进指数和分级指数多模式纤维的比较,特别是OM5纤维.
    • 使用的商业双向小形状因素插入式 (SFP+) 收发器.

    主要成果:

    • 与单模光纤相比,OM5分级索引光纤显示了接近高斯光学传输模式,视野增加了5倍以上.
    • 在低流下 (D/r0 = 3) 实现了10 Gbps的无错吞吐量.
    • 在高流条件下 (D/r0 = 9) 实现了9.1 Gbps的无错吞吐量.

    更多相关视频

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    Multicolor Fluorescence Detection for Droplet Microfluidics Using Optical Fibers

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    Last Updated: Jun 16, 2025

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    09:43

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

    Published on: March 20, 2017

    9.8K
    Characterization of Anisotropic Leaky Mode Modulators for Holovideo
    09:36

    Characterization of Anisotropic Leaky Mode Modulators for Holovideo

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    Multicolor Fluorescence Detection for Droplet Microfluidics Using Optical Fibers
    10:21

    Multicolor Fluorescence Detection for Droplet Microfluidics Using Optical Fibers

    Published on: May 5, 2016

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    结论:

    • OM5分级索引纤维是双向FSO通信的可行解决方案,克服了单模系统的局限性.
    • 使用OM5光纤可以实现高速 (10Gbps) FSO链路,而不需要复杂的自适应光学.
    • 这种方法显著提高了FSO通信系统在具有挑战性的环境中的稳定性和部署性.