Fault Diagnosis of Permanent Magnet Synchronous Motor of Coal Mine Belt Conveyor Based on Digital Twin and ISSA-RF

Abstract

Permanent magnet synchronous motors (PMSMs) have been gradually used as the driving equipment of coal mine belt conveyors. To ensure safety and stability, it is necessary to carry out real-time and accurate fault diagnosis of PMSM. Therefore, a fault diagnosis method for PMSM based on digital twin and ISSA-RF (Improved Sparrow Search Algorithm Optimized Random Forest) is proposed. Firstly, the multi-strategy hybrid ISSA is used to solve the problems of uneven population distribution, insufficient population diversity, low convergence speed, etc. In addition, the fault diagnosis model of ISSA-RF permanent magnet synchronous motor is constructed based on the optimization of the number of Random Forest decision trees and that of features of each node by ISSA. Secondly, considering the operation mechanism and physical properties of PMSM, the relevant digital twin model is constructed and the real-time mapping of physical entity and virtual model is realized through data interactive transmission. Finally, the simulation and experimental results show that the fault diagnosis accuracy of ISSA-RF, 98.2%, is higher than those of Random Forest (RF), Sparrow Search Algorithm Optimized Random Forest (SSA-RF), BP neural network (BP) and Support Vector Machine (SVM), which verifies the feasibility and ability of the proposed method to realize fault diagnosis and 3D visual monitoring of PMSM together with the digital twin model.

Digital twins in the minerals industry – a comprehensive review

“…Storing DT data on the server side also serves as a single point of truth for future developments which may utilise data in different ways such as performance analysis, maintenance, and continuous improvement of assets. A human-centred approach using real-time 3D graphics paired with immersive technologies such as VR, AR as well as MR shows the potential to improve the usability and acceptance level of DT in the minerals industry that is largely people-focused (Kizil et al 2001; Brune 2010; Stothard et al 2019; Xie et al 2019; Deryabin et al 2020; Huang et al 2022; Liu et al 2023). More understanding is still needed on the effectiveness of combining spatial visualisation and interaction with DTs in operational scenarios before the extra cost associated with adopting the 3D workflow can be justified.…”

Developing a digital twin for a laboratory ball mill operation – a step towards mining metaverse

“…While the concept of industrial metaverse is still in its infant stage, the International Standards Organisation (ISO) and Standards Australia are working proactively towards creating standards for enabling technologies such as virtual reality, augmented reality, as well as mixed reality (ISO, 2020; Wallace et al, 2023). Initiatives from the Institute of Electrical and Electronics Engineers (IEEE) have also recognised the pressing need to develop standards to guide future developments towards industrial metaverses of different kinds (IEEE, 2023; Koziol, 2022; Saracco, 2022). For the mining metaverse, international and domestic standards should form the governing layer for future research and developments to improve compatibility with legacy systems, rapid virtual modelling, human comfort and safety, accessibility to technologies, privacy and security, interoperability and communication, as well as cost-effectiveness (Figure 17).…”

“…Ultimately, advancements in DT research can also contribute towards realising a future of industrial metaverse (Liu et al, 2023;Stothard, 2023) a hypothetical future iteration of the Internet as a collective, immersive and collaborative virtual space where people can work, entertain, trade as well as other things they could do in life using technologies such as virtual reality (VR), augmented reality (AR) and mixed reality (MR) to provide human-centred experiences which had also been used to deliver effective industrial training (Bise, 1997;Denby et al, 1998;Kerridge et al, 2003;Kizil et al, 2001;Schofield et al, 1994;Squelch, 1997) and human-centred cyber-physical systems (Brune, 2010;Deryabin et al, 2020;Huang et al, 2022;LeBlanc-Smith et al, 1998;Stothard et al, 2019;Xie et al, 2019).…”

Exploring Digital Twins in the Transport and Energy Fields: A Bibliometrics and Literature Review Approach

“…Consequently, risk management as a digital twin objective was in fifth place alongside product management (15). Although systems planning (11) and design (7) are irreproachably the foundation of a company's success or production of a good product, they are not yet at the forefront of digital twin use. Last was product design (2); the digital twin objective could not be identified in one paper.…”

“…Today, the primary purpose of digital twins is to simulate and optimise the performance of products [6], services [7], processes [8] or systems [9]. In the case of transport, cyber-physical systems are created with digital twins and are connecting an object's physical counterpart [10,11] with its virtual one [12]. They usually obtain a continuous real-time data stream from the physical environment (e.g., through sensors [10]), consequently allowing to test various scenarios without real-life implementation.…”