Simplified Design of Common-Mode Chokes for Reduction of Motor Ground Currents in Inverter Drives

Muetze,; Sullivan, Aideen M.

doi:10.1109/ias.2006.256863

Cited by 15 publications

(26 citation statements)

References 8 publications

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“…Notably, use of several single-turn feed-through chokes in series is likely to be a more practical choice than wound chokes, [8] (Fig. 2).…”

Section: Motor Invertermentioning

confidence: 99%

Simulation Model of Common-Mode Chokes for High-Power Applications

Sullivan¹,

Muetze²

2007

2007 IEEE Industry Applications Annual Meeting

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Linear and nonlinear Cauer-network models for nanocrystalline inductor cores are developed and used for circuit simulations of common-mode chokes for inverter-based drive systems of several hundred kW. Experimental measurements of the chokes' performance in a high-power test bed are compared to the model results. When the model is based on measured characteristics of the material used, the match to measured behavior is good. Damping inherent in the material characteristic is adequate, such that additional damping is not useful. The primary limitation to accurate prediction of loss in practice is the tolerance on specifications of core characteristics, particularly at high frequency where limits are not specified.

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“…Notably, use of several single-turn feed-through chokes in series is likely to be a more practical choice than wound chokes, [8] (Fig. 2).…”

Section: Motor Invertermentioning

confidence: 99%

Simulation Model of Common-Mode Chokes for High-Power Applications

Sullivan¹,

Muetze²

2007

2007 IEEE Industry Applications Annual Meeting

Self Cite

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“…The CMV and the resulting CMC can be reduced in both passive and active ways. Passive methods include adopting magnetic circuits such as a commonmode inductor or a common-mode transformer [8]- [12]. However, additional magnetic circuits have cost and size penalties.…”

Section: Introductionmentioning

confidence: 99%

Common-Mode Voltage Reduction of Three-Level Four-Leg PWM Converter

Chee

Kim

et al. 2015

IEEE Trans. on Ind. Applicat.

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This paper presents a carrier-based pulsewidth modulation (PWM) method that reduces the common-mode voltage (CMV) of a three-level four-leg converter. Based on an analysis of space vector PWM (SVPWM) and sinusoidal-PWM switching patterns, the fourth-leg pole voltage of a three-phase converter, known as the "f pole voltage," is manipulated to reduce the CMV. To synthesize the f pole voltage for the suppression of the CMV, positive and negative pole voltage references of the f leg are calculated. In addition, the offset voltage to prevent distortion of the a, b, and c phase voltages regarding the neutral point is deduced. The proposed PWM strategy can be easily implemented in the software of a DSP-based converter control. The three-level four-leg converter with the proposed PWM algorithm results in a remarkable reduction in the peak-to-peak value of the CMV. From the simulation and the experimental results, the peak-to-peak value of the CMV when using the proposed PWM method is 33% compared to that when using the SVPWM method, while the number of CMV transitions during the switching period in the proposed PWM method is only 25% of that when using the SVPWM method. Index Terms-Common-mode current (CMC), common-mode voltage (CMV), pulsewidth modulation (PWM), push-pull PWM (PPPWM), sinusoidal PWM (SPWM), space vector PWM (SVPWM), three-level four-leg converter. 0093-9994

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“…Basic design equations for determination of main core dimensions and the number of turns of a CMC are described in [19]. More accurate modeling of the CMC requires the inclusion of parasitic effects such as parasitic capacitance, leakage inductance, and core losses [20]- [22].…”

Section: Introductionmentioning

confidence: 99%

Small-Signal Calculation of Common-Mode Choke Characteristics Using Finite-Element Method

Kovačić

Stipetić

Hanić

et al. 2015

IEEE Trans. Electromagn. Compat.

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This paper presents a finite-element (FE) method approach to calculation of the common-mode choke (CMC) impedance over a wide frequency range. The proposed method involves a 3-D electrostatic FE calculation of each turn-to-turn and turn-to-core capacitance, and their usage as electric circuit lumped parameters in the 3-D time-harmonic magnetic FE calculation of the CMC impedance. It also takes into account the variation of the nanocrystalline core permeability and losses with frequency up to 100 MHz. The proposed methodology is used for calculation of the common-mode, open-mode, and differential-mode impedance characteristic for single-phase and three-phase CMC. Results are compared with measurements.Index Terms-Circuit analysis, electromagnetic analysis, electromagnetic compatibility, finite-element (FE) method, inductors, magnetic cores, magnetic materials, permeability, power filters. 0018-9375

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Simplified Design of Common-Mode Chokes for Reduction of Motor Ground Currents in Inverter Drives

Cited by 15 publications

References 8 publications

Simulation Model of Common-Mode Chokes for High-Power Applications

Simulation Model of Common-Mode Chokes for High-Power Applications

Common-Mode Voltage Reduction of Three-Level Four-Leg PWM Converter

Small-Signal Calculation of Common-Mode Choke Characteristics Using Finite-Element Method

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