基于残差内积驱动的异步电机多故障检测方法

doi:10.19595/j.cnki.1000-6753.tces.250501

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Abstract Industrial motor fault detection faces significant challenges in identifying subtle failure features from sequential data and reducing reliance on expert knowledge. Traditional methods like principal component analysis (PCA) and autoencoders often struggle with limited fault sensitivity and require extensive labeled data for training. This study proposes a residual inner product-driven fault detection model (RID-FDM). This fully data-driven framework achieves high-precision detection of three critical motor faults—localized bearing damage, stator inter-turn short circuits, and rotor bar breakage—using only healthy data for training. By leveraging sequence windowing to partition long-term temporal data into localized fragments, the model introduces a novel residual inner product mechanism to amplify fault-sensitive features while maintaining robustness to normal operational variations.
The core innovations of RID-FDM lie in its three-tiered technical framework. First, the residual inner product analysis (RIPA) framework employs a segment residual generator (SRG) to produce orthogonal residual representations of input fragments, enforced by a global residual inner product (GRIP) loss function that drives the residual inner product sequence (RIPS) of healthy data toward zero. Second, the windowed residual propagation mechanism decomposes long sequences into localized segments, enabling the convolutional SRG to capture spatial-temporal fault patterns while accumulating abnormal evidence through the temporal evolution of RIPS. Third, the model demonstrates universal adaptability to diverse fault types by leveraging the generic feature representation capacity of residual inner products, requiring hyperparameter adjustments rather than architectural redesign. This design significantly enhances engineering applicability in industrial settings with limited fault samples and stringent real-time requirements.
Extensive experiments validate RID-FDM's superiority across benchmark datasets. The model achieves 100% detection accuracy for bearing faults, 96.07% for stator faults, and 93.33% for rotor faults in zero-shot scenarios. Notably, the method does not require prior knowledge of fault during training and operates in real time with minimal computational overhead. The proposed framework offers a scalable solution for predictive maintenance systems where labeled fault data is scarce and rapid response is critical.

Key words： Asynchronous motor fault detection neural network unsupervised learning zero-shot detection

Received: 28 March 2025

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TM306+.1

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	Xu Boqiang
	Xiong Peng
	Sun Liling
	Yin Yanbo

Cite this article:

Xu Boqiang,Xiong Peng,Sun Liling等. Residual Inner Product-Driven Multi-Fault Detection for Induction Motors[J]. Transactions of China Electrotechnical Society, 2026, 41(6): 1976-1985.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.250501 OR https://dgjsxb.ces-transaction.com/EN/Y2026/V41/I6/1976

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