基于萨维茨基-戈莱-长期-短期的交替电流断路器的剩余电力寿命预测
Junfeng Ouyang1, Changchun Chi1
1School of Electrical Engineering, Shanghai Dianji University, Shanghai 200240, China.
Sensors (Basel, Switzerland)
|August 12, 2023
概括
这项研究引入了Savitzky-Golay平滑和长期短期记忆神经网络模型,以准确预测交流断路器的剩余电力寿命. 该方法达到97.4%的准确性,提高了设备的安全性并减少了经济损失.
科学领域:
- 电气工程 电气工程
- 人工智能的人工智能
- 预测性维护是指预测性维护.
背景情况:
- 准确预测交流断路器的剩余电力寿命对于安全运行和减少经济损失至关重要.
- 现有的方法在预测设备退化时可能缺乏精度.
- 如果无法预测设备的寿命,可能会导致意想不到的停机时间和增加维护成本.
研究的目的:
- 开发和验证一种用于预测交流断路器剩余电力寿命的新方法.
- 提高电气设备寿命预测的准确性和可靠性.
- 为优化维护计划和防止设备故障提供一个强大的模型.
主要方法:
- 进行了全寿命测试,以收集交流断路器退化数据.
- 应用主要组件分析 (PCA) 和最大信息系数 (MIC) 用于特征选择和冗余减少.
- 使用Savitzky-Golay卷积光滑来消除特征序列.
- 使用长期短期记忆 (LSTM) 神经网络,精确的时间序列预测剩余电力寿命.
主要成果:
- 提出的萨维茨基-戈莱-LSTM模型实现了97.4%的预测准确度.
- 该模型有效地减少了噪音和异常值对特征数据的影响.
- 特性选择技术确定了用于准确预测寿命的最佳参数.
- 与反向传播神经网络 (BPNN) 和门式循环单元 (GRU) 相比,LSTM网络表现优越.
结论:
- 时间序列预测是一种可行且准确的方法,用于预测电气设备的剩余电力寿命.
- 开发的模型为交流断路器的预测准确性提供了显著的改进.
- 这项研究为优化电气系统预测性维护策略提供了宝贵的参考.
更多相关视频
09:26In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices
Published on: June 26, 2015
8.8K
07:00Measuring Diffusion Coefficients via Two-photon Fluorescence Recovery After Photobleaching
Published on: February 26, 2010
11.3K
相关概念视频
Three-Phase Short Circuit—Unloaded Synchronous Machine
167
Conducting a three-phase short circuit test on an unloaded synchronous machine helps understand its impact on the system. The AC fault current's oscillogram, with the DC offset removed, reveals that the waveform amplitude decreases from an initially high value to a steady-state level for one phase of the machine.
This behavior occurs due to the magnetic flux produced by the short-circuit armature currents. Initially, these currents follow high-reluctance paths but eventually shift to...
This behavior occurs due to the magnetic flux produced by the short-circuit armature currents. Initially, these currents follow high-reluctance paths but eventually shift to...
167
Circuit Breaker and Fuse Selection
128
A circuit breaker is a device engineered to interrupt fault currents and sometimes reclose automatically. When a fault current is detected, the breaker separates the electrical contacts, which generates an arc. This arc is extinguished by methods such as elongation, cooling, or splitting, depending on the breaker's design. Breakers are categorized based on the voltage they operate at and the medium used for arc extinction, such as air, oil, SF6 gas, or vacuum.
In high-voltage systems,...
In high-voltage systems,...
128
Power System Three-Phase Short Circuits
111
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...
111
Series R—L Circuit Transients
121
In a series resistor-inductor (R-L) circuit, closing the switch at the start of the time period simulates a three-phase short circuit, a fault condition where all three phases of an unloaded synchronous machine are short-circuited. When there is no fault impedance and no initial current, the initial voltage is determined by the phase angle of the source voltage.
Using Kirchhoff's Voltage Law (KVL) to analyze this circuit helps determine the total asymmetrical fault current, which consists...
Using Kirchhoff's Voltage Law (KVL) to analyze this circuit helps determine the total asymmetrical fault current, which consists...
121
Reclosers and Fuses
129
Automatic circuit reclosers enhance the protection of distribution circuits by interrupting and auto-reclosing an AC circuit according to a preset sequence. They effectively manage temporary faults on overhead distribution lines, often caused by tree limbs or wildlife, by briefly disrupting service to improve overall reliability. However, contact with reclosers or energized broken conductors on the ground can pose serious hazards.
A comprehensive protection scheme for radial distribution...
A comprehensive protection scheme for radial distribution...
129
Resistor in an AC Circuit
2.7K
An alternating emf or voltage source is needed to supply an alternating current (AC) to a circuit. A coil of wire rotating in a magnetic field at a constant angular speed represents such a source. It also generates a sinusoidal alternating emf and serves as an industrial alternator.
One-way current through the meter is measured using diodes. A diode is a device with better conductivity in one direction compared to the other; in its ideal state, it has zero resistance in one direction and allows...
One-way current through the meter is measured using diodes. A diode is a device with better conductivity in one direction compared to the other; in its ideal state, it has zero resistance in one direction and allows...
2.7K
