Conducted-EMI Prediction for AC Converter Systems Using an Equivalent Modular–Terminal–Behavioral (MTB) Source Model

Liu, Qian; Wang, F.; Boroyevich, Dushan

doi:10.1109/tia.2007.904435

Cited by 54 publications

(19 citation statements)

References 17 publications

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“…The generality of the model is also a needed key feature; that is, many models only consider a particular type of system, AC drives, boost converter, etc. The modular-terminal-behavioral (MTB) concept first introduced in [50] and built upon in [37,[51][52][53] tackles these important factors in the model. Although this concept covers many of these needed features it is still lacking in some areas.…”

Section: Motivation and Objectivesmentioning

confidence: 99%

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Generalized Terminal Modeling of Electromagnetic Interference

Baisden

Boroyevich

Wang

2010

IEEE Trans. on Ind. Applicat.

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Terminal models have been used for various power electronic applications. In this work a two-and three-terminal black box model is proposed for electro-magnetic interference (EMI) characterization. The modeling procedure starts with a time-variant system at a particular operating condition, which can be a converter, set of converters, sub-system or collection of components. A unique, linear equivalent circuit is created for applications in the frequency domain. Impedances and current / voltage sources define the noise throughout the entire EMI frequency spectrum. All parameters needed to create the model are clearly defined to ensure convergence and maximize accuracy.The model is then used to predict the attenuation caused by a filter with increased accuracy over small signal insertion gain measurements performed with network analyzers. Knowledge of EMI filters interactions with the converter allows for advanced techniques and design constraints to optimize the filter for size, weight, and cost. Additionally, the model is also demonstrated when the operating point of the system does not remain constant, as with AC power systems.Modeling of a varying operating point requires information of all the operating conditions for a complete and accurate model. However, the data collection and processing quickly become unmanageable due to the large amounts of data needed. Therefore, simplification techniques are used to reduce the complexity of the model while maintaining accuracy throughout the frequency spectrum.The modeling approach is verified for linear and power electronic networks including: a dcdc boost converter, phase-leg module, and a simulated dc-ac inverter. The accuracy of the model is confirmed up to 100 MHz in simulation and at least 50 MHz for experimental validation.

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Section: Motivation and Objectivesmentioning

confidence: 99%

“…Other works, [53], claim that the concept of simplifying a circuit to an equivalent Norton / Thevenin is valid for any system. An issue not discussed in previous works includes modeling switched impedances in this fashion.…”

Section: Model Limitationsmentioning

confidence: 99%

Generalized Terminal Modeling of Electromagnetic Interference

Baisden

Boroyevich

Wang

2010

IEEE Trans. on Ind. Applicat.

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“…As expected, system level simulations with physics-based models of semiconductor devices are even more complex and may be impractical as systems grow larger. In recent years, behavioral models have been shown to provide a promising alternative [3][4][5][6][7][8][9][10][11][12]. These models usually have a simple topology and can be used to study system-level EMI behavior.…”

Section: Introductionmentioning

confidence: 99%

“…A common way to extract behavioral models is to use the series-and-shunt impedance insertion method [6][7][8][9][10]. In [6][7] a "gray-box" model (modular-terminal-behavioral or MTB) of a phase-leg was developed using this method.…”

Section: Introductionmentioning

confidence: 99%

EMI modeling of half-bridge inverter using a generalized terminal model

Bishnoi

Baisden

Mattavelli

et al. 2011

2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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A generalized terminal model has been proposed to predict the conducted electromagnetic interference (EMI) from a boost converter. The results of conducted emissions have shown a good agreement up to 50 MHz. The same technique was also successfully applied to extract a terminal model of buck converter. This paper extends the generalized terminal modeling approach to a larger class of power converters by attempting to model a dc-ac converter from the dc terminal side. Modeling the terminal behavior of an ac system is more challenging than it is for dc-dc converters because of the timevarying converter operating point. The proposed technique is applied to a single-phase half-bridge inverter to show its versatility in modeling conducted emissions from ac systems. Measured and predicted conducted emissions from a half-bridge inverter are in a good agreement within 6 dB up to 30 MHz.

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“…So far, many studies have been specified on the EMI modeling of motor-drives. The HF model of different types of motor-drives for the investigation and prediction of EMI were discussed in [84][85][86][87][88][89][90][91][92][93][94][95][96][97][98][99][100][101]. In [84][85][86][87][88][89][90][91][92][93], analytical and numerical approaches were presented which proposes a simulation model for a complete drive system based on the frequency domain.…”

Section: Chapter 5 Modeling Of the Active Componentsmentioning

confidence: 99%

Development of Physics-based Models and Design Optimization of Power Electronic Conversion Systems

Nejadpak¹

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Conducted-EMI Prediction for AC Converter Systems Using an Equivalent Modular–Terminal–Behavioral (MTB) Source Model

Cited by 54 publications

References 17 publications

Generalized Terminal Modeling of Electromagnetic Interference

Generalized Terminal Modeling of Electromagnetic Interference

EMI modeling of half-bridge inverter using a generalized terminal model

Development of Physics-based Models and Design Optimization of Power Electronic Conversion Systems

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