在电气设备组件中检测和分析偏放电现象学,由扭曲的交流波形提供
Gian Carlo Montanari1, Sukesh Babu Myneni1, Zhaowen Chen1
1Center for Advanced Power Systems (CAPS), Florida State University, Tallahassee, FL 32310, USA.
Sensors (Basel, Switzerland)
|November 13, 2025
概括
在电绝缘中,部分放电 (PD) 被现代电力电子中常见的扭曲交流波形加速. 这项研究表明PD模式发生了变化,但AI仍然可以识别缺陷类型及其有害性.
科学领域:
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
- 电力系统 电力系统
背景情况:
- 运输和工业中的电力电子设备会导致电压波形偏差,导致绝缘通过部分放电 (PD) 衰老.
- PDs是加速老化和电气绝缘系统过早故障的主要原因.
- 虽然研究了脉冲宽度调制 (PWM) 电压下的PDs,但较少的研究解决了它们在AC扭曲波形下具有波和口的有害性.
研究的目的:
- 在AC扭曲波形下研究PD传感和现象学,其中包含电压波和隙.
- 解决关于扭曲交流电压对PD行为和有害性的影响的知识差距.
- 在扭曲的交流条件下适应和评估AI算法来识别PD类型和缺陷类型.
主要方法:
- 在交流扭曲波形下分析PD模式,使用电压波和口.
- 将PD模式与在正弦交流电压下观察到的 PD 模式进行比较.
- 在扭曲的交流波形上适应和测试用于PD类型识别的AI算法.
主要成果:
- 与侧面交流相比,PD模式在波电压和/或隙下发生显著变化.
- 这些模式变化可以影响基于物理模式的PD类型的识别.
- 有效识别PD缺陷类型及其有害性,即使使用适应的AI算法,也可以实现扭曲的交流波形.
结论:
- 在工业和运输应用中普遍存在的扭曲交流波形改变了PD现象学.
- 基于AI的PD识别算法可以适应在扭曲的AC条件下有效分析PD模式.
- 仍然可以准确识别PD源及其相关风险,从而实现更好的绝缘管理.
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