Three-phase common mode inductor design and size minimization

Han, Di; Morris, Casey T.; Lee, Woongkul; Sarlioglu, Bulent

doi:10.1109/itec.2016.7520267

Cited by 15 publications

(13 citation statements)

References 35 publications

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“…As explained in <2.3>, the use of small‐sized cores in filter inductors is advantageous in that high impedance can be obtained in high frequency range. However, in power circuits, inductors are designed with regard to magnetic flux saturation, [ 32,33 ] and core size grows with system's power capacity. Thus, in real applications, the effects of dimensional resonance must be avoided while using large‐sized cores.…”

Section: Effect Of Core Segmentation On Inductor Impedancementioning

confidence: 99%

Experimental evaluation of the relationship between dimensional dependencies of MnZn ferrites and filter inductor impedances

Takahashi

Ogasawara

Takemoto

et al. 2020

Electrical Engineering Japan

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This study investigates the relationship between filter inductor impedance and dimensional resonance of MnZn ferrite. Experimental results clarify that multiple factors affect inductor impedance resonances. These can be classified into three factors: the inherent characteristics of a magnetic material, self‐resonance due to winding stray capacitance, and winding that acts as a distributed constant line. Next, based on the measurement results, the dimensional dependencies of complex permeabilities (dimensional resonance) and the influence of dimensional resonance on inductor impedance are discussed in detail. Finally, this study verifies that the influence of dimensional resonance on complex permeability can be mitigated, and filter inductor impedance can be increased in the high frequency range by core lamination. All experiments are performed using off‐the‐shelf magnetic core products.

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Section: Effect Of Core Segmentation On Inductor Impedancementioning

confidence: 99%

Experimental evaluation of the relationship between dimensional dependencies of MnZn ferrites and filter inductor impedances

Takahashi

Ogasawara

Takemoto

et al. 2020

Electrical Engineering Japan

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“…Furthermore, since this inductance is an air-cored inductor, it never saturates at any level of current keeping sustainable filtering performance which favors the usage of a toroidal CMC for CM and DM noise suppression. This inherent parasitical parameter has been addressed in several research papers, either as a constraint in the design of CMCs which is the case in [8]- [10] or to act as a formal DM inductor in EMI filters design as in [11]- [18]. References [19], [20] reported the designable parameter for a CMC.…”

Section: Introductionmentioning

confidence: 99%

A Hybrid Common Mode Choke Optimization Method for Input Line EMI Filter Design

Khelladi

Saci

Hadjadj

et al. 2021

AEM

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In this paper, an optimization method of toroidal core-based Hybrid common-mode chokes (HCMCs) for the design of an Electromagnetic interferences (EMI) filter is proposed. A dedicated algorithm is developed using MATLAB to characterize compact HCMCs that exhibit effective CommonMode (CM) chokes with optimized leakage inductances by systematic variations in the winding patterns and geometric dimensions of their magnetic cores. It takes into consideration the physical limitations of these components as well as the constraints related to the design of EMI filters. The proposed algorithm allows through a small computational task to propose a variety of configurations for optimal HCMCs. Finite element method (FEM) simulations are conducted on the HCMCs to extract their CM and leakage inductances. The results are compared with those calculated analytically and yield a good match. The performances of optimized HCMCs are evaluated through their implementation in the designed filter. All the cases of HCMCs including the smallest one allow the EMI filter to easily qualify a power converter to an electromagnetic compatibility (EMC) standard.

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“…Toroid core window area imposes another design constrain for the CM choke. The maximum number of turns is limited by the inner diameter of the core according to [80]:…”

Section: Analytical Estimationmentioning

confidence: 99%

“…High-frequency behavior modeling of the CM choke has been presented in [44,81], but the choke parameters rely on the previous measurement results. In [80,82], the total parasitic capacitance in the choke is modeled by a network of series and parallel connection of the turn-to-turn capacitance and the turn-to-core capacitance. This model considers the distribution of the choke winding and its parasitic capacitance but the proposed analytical estimation makes quite a lot assumptions and is only valid when the number of turns is larger than 10.…”

Section: Fem Simulationmentioning

confidence: 99%

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Common mode filter design for mitigation of bearing degradation in inverter-fed Motor drive systems

Fan¹

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Recent advancements in the insulated-gate bipolar transistor (IGBT) enable higher switching speeds in power electronics and have improved the power conversion efficiency significantly. Hence, pulse width modulated (PWM) variable frequency drives (VFDs) are widely used in modern control of electro-mechanical drive systems. On the other hand, higher switching frequencies cause the presence of high-frequency commonmode (CM) voltage, which results in unwanted CM current flows through the motor bearing and leads to premature motor bearing failures, such as frosting, fluting and pitting. SPWM Sinusoidal Pulse Width Modulation VFD Variable-frequency Drive VNA Vector Network Analyzer This thesis is organized as follows: This chapter provides the introduction, background and motivation of the thesis. Chapter 2 gives a review of the bearing degradation issues for inverter-fed motor drive systems and commonly adopted mitigation methods. The causes of bearing voltage and four types of bearing currents are described in detail for the readers to appreciate the

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Three-phase common mode inductor design and size minimization

Cited by 15 publications

References 35 publications

Experimental evaluation of the relationship between dimensional dependencies of MnZn ferrites and filter inductor impedances

Experimental evaluation of the relationship between dimensional dependencies of MnZn ferrites and filter inductor impedances

A Hybrid Common Mode Choke Optimization Method for Input Line EMI Filter Design

Common mode filter design for mitigation of bearing degradation in inverter-fed Motor drive systems

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