Condition Monitoring of Highway Tunnel Fans Motors: Case Studies Based on Experimental Data Marcello Minervini, Pedro Huertas-Leyva, Lorenzo Mantione, Lucia Frosini, Giulia Pellegrini, et al. Electronics Switzerland, 2025 Electric induction motors are fundamental to industry, where reliability and continuous operation are critical. Though robust, they are prone to faults, particularly in demanding environments such as highway tunnels. Non-invasive diagnostic techniques are widely used for condition monitoring, yet most studies occur under controlled laboratory conditions, limiting their applicability in real-world scenarios. This research investigates the feasibility of applying Motor Current Signature Analysis (MCSA) for monitoring highway tunnel axial fan motors, aiming to determine its effectiveness for real-time diagnostics in industrial environments. Measurements were performed under actual operating conditions, highlighting practical challenges. Data acquisition was implemented remotely from electrical cabins feeding tunnel services, reducing installation complexity and costs compared to in-tunnel measurements. This approach enabled monitoring of all motors in a tunnel using minimal hardware (a single acquisition system equipped with Rogowski sensors) making the solution cost-effective and suitable for periodic measurements. Frequency domain analysis focused on harmonics associated with rotor bar defects and eccentricity, selected for their slow degradation and diagnostic relevance. The magnitude of these harmonics was tracked over time and compared across motors of the same model. Since most of the time the ventilators are de-energized, the periodic measurements can be seen almost as a real-time monitoring, at least for the faults considered, with much lower costs. Results were validated against maintenance reports, confirming bearing faults with eccentricity in two motors, while suspected rotor porosity remained unverified, as expected at low severity. Findings demonstrate that MCSA can provide operational insights for fault detection in tunnel environments, supporting predictive maintenance strategies. A key outcome of this study was selecting and implementing an effective measurement setup for industrial applications, while preparing the base for future machine learning integration to estimate Remaining Useful Life.
Broken Rotor Bar Detection in Closed Loop Inverter Fed Induction Motors Through Time-Frequency Techniques Lorenzo Mantione, Tomas Garcia-Calva, Vanesa Fernandez-Cavero, Lucia Frosini, Daniel Moriñigo-Sotelo IEEE Transactions on Industry Applications, 2025 In traction, automotive, and some industrial processes, the operation of the induction motor is set using speed. This creates an additional control loop that is external to the current controller that inverters already possess. While the impact of the latter control loop on fault detection in induction motors has already been studied, the influence of closed-loop speed control has not been explored enough. This paper presents the findings on the impact of PID speed control on the broken rotor bar fault detection. The study reveals that the constant corrective actions of the PID controller to correct the speed cause an increase in the noise level and spectral leakage around the first harmonic in the stator current spectrum that prevents fault detection. It is concluded that it is necessary to use time-frequency analysis techniques with excellent spectral resolution, such as the Dragon Transform or the Min-Norm technique.
Condition Monitoring of Highway Tunnel Fans Motors: Case Studies Based on Experimental Data M Minervini, P Huertas-Leyva, L Mantione, L Frosini, G Pellegrini, ... Electronics 14 (24), 4809 , 2025 2025 Citations: 1
Homopolar rotor slot harmonics for inter-turn fault detection in induction motors J Bonet-Jara, L Mantione, L Frosini, KN Gyftakis, J Pons-Llinares IEEE Transactions on Energy Conversion , 2025 2025 Citations: 1
A Non-Invasive Method for the Estimation of Inter-Turn Short-Circuit Currents in Induction Motors J Bonet-Jara, L Mantione, L Frosini, J Pons-Llinares 2025 IEEE Symposium on Diagnostics for Electric Machines, Power Electronics … , 2025 2025
Induction Motor Low Frequency Torque Oscillation Diagnostics Through Circuit Breaker Acquisitions M Minervini, L Mantione, L Frosini, P Giangrande, F Muzio 2025 IEEE Symposium on Diagnostics for Electric Machines, Power Electronics … , 2025 2025 Citations: 1
On the Shaft Voltage to Detect Faults in Wind Generators L Mantione, F Muzio, G De Boni, M Trombetta, L Frosini 2025 International Conference on Clean Electrical Power (ICCEP), 269-276 , 2025 2025 Citations: 1
Fault Detection in Closed-Loop Controlled Electrical Motors: A Review F Muzio, L Mantione, L Frosini, D Morinigo-Sotelo, M Minervini, ... 2025 IEEE Workshop on Electrical Machines Design, Control and Diagnosis … , 2025 2025
Look-up table based reduced order model of synchronous motors for digital twin applications G De Boni, L Mantione, M Minervini, L Frosini 2025 IEEE Workshop on Electrical Machines Design, Control and Diagnosis … , 2025 2025 Citations: 3
Design and Implementation of a Test Bench for Regenerative Braking Evaluation on E-Bike Motor M Minervini, P Giangrande, F Cortinovis, L Mantione, D Previtali 2025 IEEE Workshop on Electrical Machines Design, Control and Diagnosis … , 2025 2025
Diagnostics insights on single and three-phase induction motors in healthy and single-phasing conditions M Minervini, L Mantione, L Frosini, P Giangrande, A Meloni, R De Tullio IEEE Transactions on Industry Applications , 2025 2025 Citations: 2
Regenerative Braking Capabilities in E-Bike Vehicles: Comparison Between two Drive Architectures M Minervini, P Giangrande, F Corti, P Malighetti, L Mantione 2024 IEEE International Conference on Electrical Systems for Aircraft … , 2024 2024 Citations: 3
Broken rotor bar detection in closed loop inverter fed induction motors through time-frequency techniques L Mantione, T Garcia-Calva, V Fernandez-Cavero, L Frosini, ... IEEE Transactions on Industry Applications 61 (1), 209-217 , 2024 2024 Citations: 12
Detection of broken bars in induction motors operating with closed-loop speed control F Muzio, L Mantione, T Garcia-Calva, L Frosini, D Morinigo-Sotelo Machines 12 (9), 662 , 2024 2024 Citations: 9
Stray fluxes amplitude and phase shift monitoring for interturn short circuits detection in induction motors M Minervini, J Bonet-Jara, V Fernandez-Cavero, L Mantione, L Frosini 2024 International Conference on Electrical Machines (ICEM), 1-7 , 2024 2024 Citations: 1
Superconducting AC machines and cryogenic power electronics for reliable and power-dense energy conversion A Uosef, L Mantione, M Bassani, I Peixoto, L Frosini, C Concari, ... 2024 International Conference on Electrical Machines (ICEM), 1-8 , 2024 2024 Citations: 3
Design, Modeling and Diagnostics of Closed-Loop Inverter-Fed Electrical Machines L Mantione Università degli studi di Pavia , 2024 2024
Insights on diagnostic signals in single-phase and three-phase induction motors in single-phasing fault M Minervini, L Frosini, A Meloni, R De Tullio, L Mantione 2023 IEEE 14th International Symposium on Diagnostics for Electrical … , 2023 2023 Citations: 3
A time-frequency analysis for broken rotor bar detection in closed loop inverter fed induction motor at imposed speed L Mantione, V Fernandez-Cavero, D Morinigo-Sotelo, L Frosini 2023 IEEE 14th International Symposium on Diagnostics for Electrical … , 2023 2023 Citations: 5
Geometrie rotoriche per motori sincroni a magneti permanenti L Mantione, L Frosini, M Minervini, T Emanuelli, G Pacinotti AEIT 110 (1/2), 50-57 , 2023 2023
A novel investigation on multi-sensor signal signatures for induction motors diagnostics M Minervini, L Frosini, L Mantione 2022 International Conference on Electrical Machines (ICEM), 677-683 , 2022 2022 Citations: 7
Evaluation of different magnet materials and skewed geometries for ipmsm at high speed L Mantione, L Frosini, M Minervini 2022 International Conference on Electrical Machines (ICEM), 2297-2303 , 2022 2022 Citations: 4
MOST CITED SCHOLAR PUBLICATIONS
Broken rotor bar detection in closed loop inverter fed induction motors through time-frequency techniques L Mantione, T Garcia-Calva, V Fernandez-Cavero, L Frosini, ... IEEE Transactions on Industry Applications 61 (1), 209-217 , 2024 2024 Citations: 12
Detection of broken bars in induction motors operating with closed-loop speed control F Muzio, L Mantione, T Garcia-Calva, L Frosini, D Morinigo-Sotelo Machines 12 (9), 662 , 2024 2024 Citations: 9
A novel investigation on multi-sensor signal signatures for induction motors diagnostics M Minervini, L Frosini, L Mantione 2022 International Conference on Electrical Machines (ICEM), 677-683 , 2022 2022 Citations: 7
A time-frequency analysis for broken rotor bar detection in closed loop inverter fed induction motor at imposed speed L Mantione, V Fernandez-Cavero, D Morinigo-Sotelo, L Frosini 2023 IEEE 14th International Symposium on Diagnostics for Electrical … , 2023 2023 Citations: 5
Evaluation of different magnet materials and skewed geometries for ipmsm at high speed L Mantione, L Frosini, M Minervini 2022 International Conference on Electrical Machines (ICEM), 2297-2303 , 2022 2022 Citations: 4
Look-up table based reduced order model of synchronous motors for digital twin applications G De Boni, L Mantione, M Minervini, L Frosini 2025 IEEE Workshop on Electrical Machines Design, Control and Diagnosis … , 2025 2025 Citations: 3
Regenerative Braking Capabilities in E-Bike Vehicles: Comparison Between two Drive Architectures M Minervini, P Giangrande, F Corti, P Malighetti, L Mantione 2024 IEEE International Conference on Electrical Systems for Aircraft … , 2024 2024 Citations: 3
Superconducting AC machines and cryogenic power electronics for reliable and power-dense energy conversion A Uosef, L Mantione, M Bassani, I Peixoto, L Frosini, C Concari, ... 2024 International Conference on Electrical Machines (ICEM), 1-8 , 2024 2024 Citations: 3
Insights on diagnostic signals in single-phase and three-phase induction motors in single-phasing fault M Minervini, L Frosini, A Meloni, R De Tullio, L Mantione 2023 IEEE 14th International Symposium on Diagnostics for Electrical … , 2023 2023 Citations: 3
Diagnostics insights on single and three-phase induction motors in healthy and single-phasing conditions M Minervini, L Mantione, L Frosini, P Giangrande, A Meloni, R De Tullio IEEE Transactions on Industry Applications , 2025 2025 Citations: 2
Condition Monitoring of Highway Tunnel Fans Motors: Case Studies Based on Experimental Data M Minervini, P Huertas-Leyva, L Mantione, L Frosini, G Pellegrini, ... Electronics 14 (24), 4809 , 2025 2025 Citations: 1
Homopolar rotor slot harmonics for inter-turn fault detection in induction motors J Bonet-Jara, L Mantione, L Frosini, KN Gyftakis, J Pons-Llinares IEEE Transactions on Energy Conversion , 2025 2025 Citations: 1
Induction Motor Low Frequency Torque Oscillation Diagnostics Through Circuit Breaker Acquisitions M Minervini, L Mantione, L Frosini, P Giangrande, F Muzio 2025 IEEE Symposium on Diagnostics for Electric Machines, Power Electronics … , 2025 2025 Citations: 1
On the Shaft Voltage to Detect Faults in Wind Generators L Mantione, F Muzio, G De Boni, M Trombetta, L Frosini 2025 International Conference on Clean Electrical Power (ICCEP), 269-276 , 2025 2025 Citations: 1
Stray fluxes amplitude and phase shift monitoring for interturn short circuits detection in induction motors M Minervini, J Bonet-Jara, V Fernandez-Cavero, L Mantione, L Frosini 2024 International Conference on Electrical Machines (ICEM), 1-7 , 2024 2024 Citations: 1
Progettazione di motori sincroni a riluttanza mirata al miglioramento del rendimento e del fattore di potenza L MANTIONE 2019 Citations: 1
A Non-Invasive Method for the Estimation of Inter-Turn Short-Circuit Currents in Induction Motors J Bonet-Jara, L Mantione, L Frosini, J Pons-Llinares 2025 IEEE Symposium on Diagnostics for Electric Machines, Power Electronics … , 2025 2025
Fault Detection in Closed-Loop Controlled Electrical Motors: A Review F Muzio, L Mantione, L Frosini, D Morinigo-Sotelo, M Minervini, ... 2025 IEEE Workshop on Electrical Machines Design, Control and Diagnosis … , 2025 2025
Design and Implementation of a Test Bench for Regenerative Braking Evaluation on E-Bike Motor M Minervini, P Giangrande, F Cortinovis, L Mantione, D Previtali 2025 IEEE Workshop on Electrical Machines Design, Control and Diagnosis … , 2025 2025
Design, Modeling and Diagnostics of Closed-Loop Inverter-Fed Electrical Machines L Mantione Università degli studi di Pavia , 2024 2024