VNA-Based Fixture Adapters for Wideband Accurate Impedance Extraction of Single-Phase EMI Filtering Chokes

Jie, Huamin; Gao, Si‐Ping; Fan, Fei; Sasongko, Firman; Gupta, Amit Kumar; See, Kye Yak

doi:10.1109/tie.2023.3239906

Cited by 24 publications

(5 citation statements)

References 35 publications

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“…Accurately detecting certain faults may require analysing motor impedance at high frequencies. Traditional connection hardware such as Kelvin clip leads, or extension cables, are band-limited to approximately 1 MHz [55]. To facilitate accurate impedance measurement for high frequencies, the authors in [56] propose a suitable connection fixture allowing accurate measurement of impedance from 100 Hz up to 120 MHz.…”

Section: Signal Wt Methods Detected Fault Referencesmentioning

confidence: 99%

Review of Fault Diagnosis Methods for Induction Machines in Railway Traction Applications

Issa,

Clerc,

Hologne-Carpentier

et al. 2024

Energies

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Induction motors make up approximately 80% of the electric motors in the railway sector due to their robustness, high efficiency, and low maintenance cost. Nevertheless, these motors are subject to failures which can lead to costly downtime and service interruptions. In recent years, there has been a growing interest in developing fault diagnosis systems for railway traction motors using advanced non-invasive detection and data analysis techniques. Implementing these methods in railway applications can prove challenging due to variable speed and low-load operating conditions, as well as the use of inverter-fed motor drives. This comprehensive review paper summarizes general methods of fault diagnosis for induction machines. It details the faults seen in induction motors, the most relevant signals measured for fault detection, the signal processing techniques for fault extraction as well as some classification algorithms for diagnosis purposes. By giving the advantages and drawbacks of each technique, it helps select the appropriate method that could address the challenges of railway applications.

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Section: Signal Wt Methods Detected Fault Referencesmentioning

confidence: 99%

Review of Fault Diagnosis Methods for Induction Machines in Railway Traction Applications

Issa,

Clerc,

Hologne-Carpentier

et al. 2024

Energies

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“…Instruments like Q meters or impedance analyzers can accurately measure the Q factor. The authors in [27] describe using VNAbased fixture adapters for wideband accurate impedance extraction of single-phase EMIfiltering chokes, emphasizing the need for systematic parasitic de-embedding to achieve precise measurements up to 120 MHz.…”

Section: Measurement Methods For Passive Componentsmentioning

confidence: 99%

“…The second contribution of this paper is the development of a state-feedback controller, designed to enhance the performance of the proposed hybrid filter, especially in systems with complex impedance conditions, such as those in industrial environments with harmonic resonances. The control strategies for hybrid filters traditionally use wideband approaches, with proportional control being the most common approach [26][27][28][29][30][31]. However, the high proportional constants needed for effective filtering tend to compromise transient performance with the proposed topology [25].…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Evaluation of a Hybrid Active Power Filter Controller

Herman,

Knez,

Blažič

2024

Energies

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This paper introduces a novel hybrid filter topology that combines passive and active components to enhance harmonic filtering and resonance damping in electrical power systems. The design integrates a three-phase two-level voltage-source converter with a double-tuned passive filter in parallel, significantly reducing the power rating and operational costs while maintaining good harmonic filtering performance and reactive current compensation. Double-tuned passive filters, compared to single-tuned ones, offer improved harmonic attenuation at multiple frequencies, enhancing overall system efficiency. Moreover, when used with the proposed hybrid filter topology, the double-tuned version allows for even lower dimensions of the active part, thereby further reducing system cost. A state-feedback controller is designed to enhance the performance of the hybrid filter, proving particularly effective in environments with complex impedance conditions. This paper also examines the impact of variations in passive component parameters, demonstrating the design’s robustness against potential deviations expected over the operational lifespan. The results indicate that the hybrid filter effectively mitigates harmonics and maintains operational stability under various transient conditions, as confirmed by analytical and simulation studies on a real industrial network model. These findings underline the hybrid filter’s potential to significantly improve power quality in modern electrical networks.

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“…The measurements obtained using these setups are typically accurate up to frequencies in the range of several tens of megahertzs [16], [18], effectively covering the spectrum where most EMC standards establish limits on conducted emissions. Extending measurements to even higher frequencies necessitates the use of specialized test fixtures [19].…”

Section: Table I Modal Admittances Of the Mpc Model Of A Cmcmentioning

confidence: 99%

Winding Optimization for Reducing Parasitic Capacitances of Common-Mode Chokes

Ruiz-Morales,

Ojeda-Rodríguez,

Bernal-Méndez

et al. 2024

IEEE Trans. Electromagn. Compat.

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Parasitic capacitances typically undermine the filtering performance of common mode chokes at high frequencies. This work demonstrates that these parasitic capacitances can be reduced by using a wise winding strategy that depends on the physical properties of the core material. Due to its practical interest, we specifically focus on single-layer common mode chokes wounded on NiZn or MnZn ferrite cores. Based on a physical model that enables the identification of parameters influencing the electrical coupling between the turns of the coils of the choke, the hypothesis proposed is that the optimal winding configuration depends on the core material, differing for NiZn and MnZn cores. To verify this hypothesis and to assess improvements actually achieved by optimum winding strategies, an accurate high-frequency model of the common mode choke along with an efficient characterization technique are used to numerically estimate the parasitics of common-mode chokes with different core materials and winding configurations. In addition, the filtering performance of these common mode chokes have been measured and compared.

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VNA-Based Fixture Adapters for Wideband Accurate Impedance Extraction of Single-Phase EMI Filtering Chokes

Cited by 24 publications

References 35 publications

Review of Fault Diagnosis Methods for Induction Machines in Railway Traction Applications

Review of Fault Diagnosis Methods for Induction Machines in Railway Traction Applications

Design and Performance Evaluation of a Hybrid Active Power Filter Controller

Winding Optimization for Reducing Parasitic Capacitances of Common-Mode Chokes

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