Early detection of induction motor's defects using an inductively coupled impedance extraction method

Rathnayaka, Sooriya Bandara; See, Kye Yak

doi:10.1109/iemdc.2017.8002000

Cited by 6 publications

(3 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These circuits bring a cost-effective solution in opposition to the previously described active filtering. A novel approach for on-line SFRA is presented in [51], where a vector network analyser is utilized. Moreover, the coupling between instrument and power cord is performed in a wireless manner through the utilization of inductive couplers.…”

Section: Fra Applied To Rotating Machinesmentioning

confidence: 99%

A Review of Broadband Frequency Techniques for Insulation Monitoring and Diagnosis in Rotating Electrical Machines

Ruiz-Sarrio,

Antonino-Daviu,

Navarro-Navarro

et al. 2024

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

Rotating electrical machines greatly suffer from insulation degradation and failure. The adoption of wide bandgap semiconductors in Variable-Frequency Drives (VFDs) hinder the utilization of traditional techniques such as on-line Partial Discharges (PD) to monitor and diagnose the insulation status and failure. Alternative techniques exploiting the broadband frequency behaviour of machine windings, and the increased high-frequency content of VFD excitation arise as a valid alternative. The present work provides a comprehensive analysis and review of cutting-edge broadband frequency techniques aimed to diagnose winding insulation degradation and faults. First, the broadband nature of machine windings is illustrated by explaining the per-turn equivalent circuit and the physical interpretation of its parameters. Then, the different insulation monitoring and diagnosis methods are thoroughly reviewed. The analysed methods include the Frequency Response Analysis (FRA) applied to rotating electrical machines, the analysis of Common Mode (CM) broadband impedance and parasitic capacitances, and methodologies based on the analysis of transient high-frequency current ringing. Specific focus is placed on the instrumentation, which often represents the main applicability limitations.

show abstract

Section: Fra Applied To Rotating Machinesmentioning

confidence: 99%

A Review of Broadband Frequency Techniques for Insulation Monitoring and Diagnosis in Rotating Electrical Machines

Ruiz-Sarrio,

Antonino-Daviu,

Navarro-Navarro

et al. 2024

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

show abstract

“…Then, by treating the two inductive probes and the SUM as three cascaded two-port networks, the impedance of the SUM can be extracted. This technique has been well established for timeinvariant system to extract in-circuit impedance response in frequency-domain [7,8]. However, its use to extract timevariant impedance of the SUM, especially those with high frequency switching rates, such as power electronic systems has not been explored.…”

Section: Introductionmentioning

confidence: 99%

Time-Variant In-Circuit Impedance Monitoring Based on the Inductive Coupling Method

See

Chua

Narayanan

et al. 2019

IEEE Trans. Instrum. Meas.

View full text Add to dashboard Cite

“…Table 2- The in-circuit impedance of critical electrical assets, such as power converters and electrical machines, provides valuable information for electromagnetic interference (EMI) filter design and health monitoring purposes [1]- [6]. It serves as one of the key parameters that reflects the characteristics of the electrical system under its actual operating conditions [7], [8], which finds many practical applications [9]- [11]. For example, the in-circuit impedance of a battery provides information on its state-of-charge (SOC) and the state-ofhealth (SOH) [12], [13]; the stability criteria of a power converter can be established once its in-circuit impedance is known [14], and systematic EMI filter design of a switch-mode power supply (SMPS) becomes possible with the known in-circuit noise source equivalent model [15].…”

mentioning

confidence: 99%

Single probe in-circuit impedance extraction based on inductive coupling approach

Weerasinghe¹

View full text Add to dashboard Cite

The in-circuit impedance of a critical electrical system provides valuable information on its operating status and health. There are three common in-circuit impedance measurement approaches, namely the voltage-current (V-I) measurement approach, the capacitive coupling approach, and the inductive coupling approach. Among them, the inductive coupling approach does not require a direct electrical contact to the energized system-under-test (SUT) and therefore greatly simplifies the implementation without the need to shut down the system and eliminates the concern of electrical safety hazards.The conventional measurement setup of the inductive coupling approach requires two inductive probes and a two-port vector network analyzer (VNA) or a signal generation and data acquisition system (SGAS). This well-established two-probe setup (TPS) has been refined and improved over the years. Despite all these recent improvements, it still cannot eliminate the inherent probe-to-probe coupling which compromises the measurement accuracy when the two probes are placed very close to each other. This thesis develops an in-circuit impedance measurement setup with the use of only one inductive probe and it is experimentally verified. By introducing a single-probe setup (SPS), not only reduces the hardware overhead of the measurement setup but also fundamentally addresses the concern of probe-to-probe coupling. In addition, the proposed SPS incorporates power amplification and protection devices to maintain the measurement system's accuracy and improve the ruggedness for in-circuit impedance measurement of electrical systems in harsh electromagnetic environments with the presence of strong background noise and transient events. An error correction scheme has also been developed to recover measurement

show abstract

Early detection of induction motor's defects using an inductively coupled impedance extraction method

Cited by 6 publications

References 9 publications

A Review of Broadband Frequency Techniques for Insulation Monitoring and Diagnosis in Rotating Electrical Machines

A Review of Broadband Frequency Techniques for Insulation Monitoring and Diagnosis in Rotating Electrical Machines

Time-Variant In-Circuit Impedance Monitoring Based on the Inductive Coupling Method

Single probe in-circuit impedance extraction based on inductive coupling approach

Contact Info

Product

Resources

About