Un-terminated common-mode EMI model of DC-fed motor drives

Bishnoi, Hemant; Mattavelli, Paolo; Boroyevich, Dushan

doi:10.1109/epepemc.2012.6397266

Cited by 13 publications

(12 citation statements)

References 16 publications

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“…Therefore, the EMI filter at the input and output sides can be designed by the UBM in one step. In [12], UBM exhibits an accurate match between the model prediction with the experimental CM noise measurement to 20 MHz at the input and output sides. This work is based on a three-phase Si IGBT commercial motor drive working with a 10 kHz switching frequency.…”

Section: Introductionmentioning

confidence: 78%

“…1 with two noise sources ( 1 N V and 2 N V ) and an impedance matrix ( 11 Z , 12 Z , 21 Z and 22 Z ) as Fig. 5 shows.…”

Section: A Ubm and Its Extraction Proceduresmentioning

confidence: 99%

“…In order to avoid extraction issues in the lumped model, the behavioral model is proposed to provide a faster extraction processes and a comparable prediction capacity. The behavioral model in [5] ~ [12] is a 'black box' modeling technique, requiring no detail in the converter. The model will use the noise sources in the frequency domain to simulate the switching parts and use measured impedances to conclude the noise propagation path.…”

Section: Introductionmentioning

confidence: 99%

“…Take, for example, the application of a motor drive, where there needs to be an EMI filter between the motor drive and the motor, which the terminated model cannot address. The unterminated behavioral model (UBM) is proposed in [12] to assess EMI emission at both the input and output sides simultaneously in frequency domain. Therefore, the EMI filter at the input and output sides can be designed by the UBM in one step.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Assessment of switching frequency impact on the prediction capability of common-mode EMI emissions of sic power converters using unterminated behavioral models

Sun

Burgos

2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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With silicon carbide (SiC) devices increasing in commercial availability, high switching frequency is becoming a general trend to increase the power density of power converters. High switching frequency operation nonetheless exacerbates EMI emissions in a system, for which accurate EMI models of power converters are needed to predict noise and aid in the design of their EMI filters. Accordingly, this paper assesses the effect on the EMI emissions from a higher switching frequency and evaluates the newly proposed unterminated behavioral model (UBM), which can predict the CM noise of power converters in the conducted EMI frequency range using equivalent noise sources and impedances by assessing its capability to predict the EMI noise of high switching frequency SiC power converters. The results obtained show that under high switching frequency, the input and output current spectrum shifts towards the MHz range, which is effectively captured by the equivalent noise sources of the UBM. A high-pass filter can be applied to capture the noise above the system noise floor, ultimately favoring the UBM prediction capacity extending to the whole conducted EMI range. Experimental results of a 3 kW, 300 V DC, SiC threephase inverter switching at 20-70 kHz are used to demonstrate these findings and validate the analysis conducted.

show abstract

Section: Introductionmentioning

confidence: 78%

“…1 with two noise sources ( 1 N V and 2 N V ) and an impedance matrix ( 11 Z , 12 Z , 21 Z and 22 Z ) as Fig. 5 shows.…”

Section: A Ubm and Its Extraction Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Assessment of switching frequency impact on the prediction capability of common-mode EMI emissions of sic power converters using unterminated behavioral models

Sun

Burgos

2015

2015 IEEE Applied Power Electronics Conference and Exposition (APEC)

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show abstract

“…It should be used for networks where converters are paralleled. For the cascading, "un-terminated" model has to be considered [6]. Since this model doesn't require any decoupling between the harmonics propagation mode, common mode (CM) and differential mode (DM), it aims to cover the frequency range from DC to 100MHz.…”

Section: Introductionmentioning

confidence: 99%

EMC models of power electronics converters for network analysis

Frantz

Frey

Schanen

et al. 2013

2013 15th European Conference on Power Electronics and Applications (EPE)

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The presence of numerous power electronics converters on embedded networks, originates EMC issues. EMC modeling of power electronic converters is tricky due to modeling complexity. Indeed, on one side, EMC study needs the finest characterization of each element, thus, only a few numbers of converters plugged to the network can be described. On the other hand, a conventional network approach, representing the converters on a pure functional point of view, does not allow such analysis of each element. Therefore "black box" or "grey box" approaches, representing the global behavior of the converters, are a good compromise between those two antagonistic needs. This article aims to sum-up characteristics of different EMC models in order to justify the choice of terminated approach. Then, all identification issues will be addressed:• Theoretical difficulties such as the physical meaning of the identified impedances • Practical difficulties like attenuated conditions sizing and measurement protocol.

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Modeling of Conducted Emissions for EMI Analysis of Power Converters: State-of-the-Art Review

2020

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Electromagnetic interference issues are associated with high-speed switching of power converters. EMI modeling is an essential tool to study and control the EMI emission, enabling more efficient solutions. A comprehensive review and comparison of different modeling approaches for conducted emissions are provided in this paper, which can be used as a design guideline for engineers. For a motor drive application, common mode and differential mode conducted emissions are studied, and dominant noise production mechanisms are identified. Moreover, a review of various modeling techniques is presented for the main parasitic components of the system. Finally, time domain and frequency domain analysis approaches are explored along with the equivalent circuits which enable fast prediction of EMI emissions. This paper intends to help the reader develop an organized understanding of conducted emission modeling to assist them with a more efficient and electromagnetically-compatible design. INDEX TERMS Circuit modeling, common mode, conducted emission, differential mode, electromagnetic interference (EMI), motor drive inverters.

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Un-terminated common-mode EMI model of DC-fed motor drives

Cited by 13 publications

References 16 publications

Assessment of switching frequency impact on the prediction capability of common-mode EMI emissions of sic power converters using unterminated behavioral models

Assessment of switching frequency impact on the prediction capability of common-mode EMI emissions of sic power converters using unterminated behavioral models

EMC models of power electronics converters for network analysis

Modeling of Conducted Emissions for EMI Analysis of Power Converters: State-of-the-Art Review

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