深度学习和波形数据包转换用于双回路传输线路故障诊断
1Electrical Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, Wadi Addawaser 11991, Al-Kharj, Saudi Arabia. z.ali@psau.edu.sa.
Scientific reports
|August 17, 2025
概括
本研究引入了一种使用波束包转换 (WPT) 和深度学习 (DL) 的双电路传输线路 (DCTL) 的新定向保护方法. 先进的框架准确地检测,识别和定位故障,提高电网可靠性.
科学领域:
- 电气工程 电气工程
- 电力系统 电力系统
- 人工智能的人工智能
背景情况:
- 双电路输电线路 (DCTL) 的有效故障诊断对于可靠的电力系统运行至关重要.
- 现有的保护方案需要强大的方法来检测故障,部分识别和精确的位置.
研究的目的:
- 为DCTLs提出一个先进的定向保护框架.
- 将波束包转换 (WPT) 与深度学习 (DL) 模型集成,以加强故障诊断.
- 使用双端测量,准确检测,识别和定位DCTL中的故障.
主要方法:
- 使用分布式参数线表示与分流电容的DCTLs的建模.
- 使用波段包转换 (WPT) 与db10母波段进行信号分解.
- 使用深度学习 (DL) 模型,包括CNN和RNN,为故障分析提供WPT近似系数.
主要成果:
- 拟议的WPT-DL框架在各种故障场景 (位置,电阻,起始角度) 中实现了高精度和稳定性.
- 与WPT-ANN和WPT-ANFIS混合方法相比,证明了更高的精度,平均误差仅为0.03%.
- 该方法为大多数线路段提供初级保护,并为相邻区域提供备用覆盖.
结论:
- 集成的WPT和DL方法为DCTL的故障诊断提供了一个高度准确和强大的解决方案.
- 这种先进的定向保护框架显著提高了电力系统保护的可靠性和性能.
- 该方法的有效性通过在各种具有挑战性的故障条件中进行模拟来验证.
关键词:
基于自适应网络的模糊推理系统.卷积神经网络是一种卷积神经网络.深度学习是一种深度学习.双电路输电线路是双电路输电线路.错误诊断是一个错误的诊断.经常性的神经网络.波段数据包转换的波段数据包转换更多相关视频
05:11High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition
Published on: June 27, 2025
212
11:34Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography
Published on: May 15, 2017
11.2K
相关概念视频
Fault Types
127
When analyzing a single line-to-ground fault from phase A to ground at a three-phase bus, it is important to consider the fault impedance. This impedance is zero for a bolted fault, equal to the arc impedance for an arcing fault, and represents the total fault impedance for a transmission-line insulator flashover. To derive sequence and phase currents, fault conditions are translated from the phase domain to the sequence domain.
For line-to-line faults occurring between phases B and C, the...
For line-to-line faults occurring between phases B and C, the...
127
Traveling Waves: Lossless Lines
200
The provided content explores the behavior of traveling waves on single-phase lossless transmission lines. It begins with a single-phase two-wire lossless transmission line of length Δx, characterized by a loop inductance LH/m and a line-to-line capacitance C F/m. These parameters result in a series inductance LΔx and a shunt capacitance CΔx.
200
Power System Three-Phase Short Circuits
149
Determining the subtransient fault current in a power system involves representing transformers by their leakage reactances, transmission lines by their equivalent series reactances, and synchronous machines as constant voltage sources behind their subtransient reactances. In this analysis, certain elements are excluded, such as winding resistances, series resistances, shunt admittances, delta-Y phase shifts, armature resistance, saturation, saliency, non-rotating impedance loads, and small...
149
Transmission-Line Differential Equations
403
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...
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...
403
Lossy Lines and Overvoltages
128
Transmission-line series resistance and shunt conductance cause three primary effects: attenuation, distortion, and power losses.
Attenuation
When constant series resistance and shunt conductance are present, voltage and current equations are modified. The propagation constant indicates that voltage and current waves consist of both forward and backward traveling components. These waves attenuate as they propagate, with the attenuation factor related to the resistance and conductance. In a...
Attenuation
When constant series resistance and shunt conductance are present, voltage and current equations are modified. The propagation constant indicates that voltage and current waves consist of both forward and backward traveling components. These waves attenuate as they propagate, with the attenuation factor related to the resistance and conductance. In a...
128
Bus Impedance Matrix
175
Calculating subtransient fault currents for three-phase faults in an N-bus power system involves using the positive-sequence network. When a three-phase short circuit occurs at a specific bus, the analysis uses the superposition method to evaluate two separate circuits.
In the first circuit, all machine voltage sources are short-circuited, leaving only the prefault voltage source at the fault location. The positive-sequence bus impedance matrix can be determined by solving the nodal equations,...
In the first circuit, all machine voltage sources are short-circuited, leaving only the prefault voltage source at the fault location. The positive-sequence bus impedance matrix can be determined by solving the nodal equations,...
175
