一个有门的循环生成转移学习网络用于故障诊断,考虑不平衡的数据和可变的工作条件
IEEE transactions on neural networks and learning systems
|February 15, 2024
概括
一个新的封闭的循环生成转移学习网络 (GRGTLN) 通过生成高质量的合成数据来改善智能故障诊断. 这种方法保留了关键的时间信息,提高了不同工作条件的准确性.
科学领域:
- 机器学习 机器学习
- 信号处理 信号处理
- 工程 工程师 工程师 工程师
背景情况:
- 智能故障诊断经常面临不平衡数据和不同工作条件的挑战.
- 现有的数据合成生成对抗网络 (GAN) 忽视了关键的故障敏感时间特征.
研究的目的:
- 为增强智能故障诊断提出一个新的封闭循环生成转移学习网络 (GRGTLN).
- 为了解决当前方法生成的合成数据中的时间信息丢失问题.
主要方法:
- 开发了一个基于条件矩阵的光滑封闭反复生成器,以扩展不平衡的数据集,重点关注故障敏感特征.
- 瓦斯斯坦距离 (WD) 被纳入,以改善数据生成和传输学习性能.
- 为了持续的模型训练和参数优化,采用了一种代的"代转移"联合培训策略.
主要成果:
- 拟议的GRGTLN有效地产生高质量的合成数据,保留关键的时间信息.
- 该方法在综合案例研究中证明了令人满意的跨领域诊断准确性.
- 在生成的序列中,对故障敏感特征的注意力因适应性而增加.
结论:
- 在智能故障诊断方面,GRGTLN提供了显著的进步,特别是在不平衡的数据集和不同的操作条件下.
- 网络保存时间信息的能力导致更可靠,更准确的故障诊断.
- 这种方法增强了故障诊断模型的转移学习能力.
更多相关视频
06:45Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
Published on: October 28, 2022
1.6K
09:13A Fully Automated and Highly Versatile System for Testing Multi-cognitive Functions and Recording Neuronal Activities in Rodents
Published on: May 3, 2012
14.4K
相关概念视频
Survival Tree
295
Survival trees are a non-parametric method used in survival analysis to model the relationship between a set of covariates and the time until an event of interest occurs, often referred to as the "time-to-event" or "survival time." This method is particularly useful when dealing with censored data, where the event has not occurred for some individuals by the end of the study period, or when the exact time of the event is unknown.
Building a Survival Tree
Constructing a...
Building a Survival Tree
Constructing a...
295
Differential Relays
613
Differential relays are used to protect generators, buses, and transformers by comparing electrical quantities at different points. When a fault occurs, the difference in current between the two points triggers the relay to operate, opening the circuit breaker. Under normal conditions, the current entering (i1) and leaving (i2) a generator are equal. When a fault occurs, however, these currents become unequal, and the difference current flows in the relay operating coil, causing the relay to...
613
Multi-input and Multi-variable systems
301
Cruise control systems in cars are designed as multi-input systems to maintain a driver's desired speed while compensating for external disturbances such as changes in terrain. The block diagram for a cruise control system typically includes two main inputs: the desired speed set by the driver and any external disturbances, such as the incline of the road. By adjusting the engine throttle, the system maintains the vehicle's speed as close to the desired value as possible.
In the absence of...
In the absence of...
301
