A review on computational EMI modelling techniques

Jithesh, V.; Pande, D.C.

doi:10.1109/icemic.2003.1287800

Cited by 8 publications

(10 citation statements)

References 6 publications

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“…For this reason, it is mathematically less dense and more intuitive than other numerical methods as the Method of Moments [41]. One inconvenience presented by the finite differences method is the difficulty to solve problems involving distant fields [43].…”

Section: A Finite Difference Time Domain (Fdtd) Methodsmentioning

confidence: 99%

“…MoM also is not appropriate for the analysis of complex non-homogeneous grounding meshes. The computational time and the memory required for the MoM increases drastically if the number of segments increases [43].…”

Section: B Methods Of Moments (Mom)mentioning

confidence: 99%

“…FDTD method is a time stepping procedure where the electric and magnetic field are calculated in each time step. These fields are propagated through the mesh, representing the transitory phenomenon [43].…”

Section: A Finite Difference Time Domain (Fdtd) Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Comparative analysis of EMC methodologies applied on transients studies of impulsive grounding systems

Gazzana

Bretãs

Dias

et al. 2010

2010 IEEE International Conference on Industrial Technology

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This paper presents a review study on state of the art techniques used for electromagnetic transient studies on grounding systems. First, an introduction about the subject is presented, emphasizing the importance of grounding in population safety and equipments protection. Following, the Circuit Approach, Transmission Line Approach, Electromagnetic Field Approach and Hybrid Approach are reported. The most currently used numerical methodologies for electromagnetic compatibility (EMC) problems solution, as Finite Difference Time Domain Method (FDTD), Moments Method (MoM), Finite Element Method (FEM) and Transmission Line Modeling Methods (TLM) are also discussed with focus in its characteristics, advantages and disadvantages. Finally, simulation results using TLM are presented emphasizing the easiness of implementation of this method.

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Section: A Finite Difference Time Domain (Fdtd) Methodsmentioning

confidence: 99%

Section: B Methods Of Moments (Mom)mentioning

confidence: 99%

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Comparative analysis of EMC methodologies applied on transients studies of impulsive grounding systems

Gazzana

Bretãs

Dias

et al. 2010

2010 IEEE International Conference on Industrial Technology

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“…or Finite Elements Integral Methods (e.g. MoM) [1], whereas the equivalent circuit methods, using "source-path-victim" approaches, rely on time, frequency or combined time-frequency domain circuit analysis. Time domain approaches yield to high resolution and accuracy but at the expense of very large computational complexity, simulation time and possible convergence problems.…”

Section: Introductionmentioning

confidence: 99%

EMI modeling method of AC-AC power converters

Espina

Balcells

Arias

et al. 2011

IEICE Electron. Express

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This paper presents a new model for simulation of Electromagnetic Interference (EMI) in power converters. Despite the fact that a Matrix Converter (MC) has been selected, such methodology can be applied to other converter topologies. The EMI model relies on a combination of time and frequency domain techniques in order to not only reduce the computational complexity but also to avoid convergence problems. Common Mode (CM) leakage current, which lays basically in A band (10 kHz to 150 kHz), is simulated and such results are compared with those obtained from the MC prototype showing a good concordance in terms of peak value. Keywords: EMI, EMC, HF circuit modeling, Common Mode, Matrix Converter, conducted emissions Classification: Electromagnetic compatibility (EMC) References[1] V. Jithesh and D. C. Pande, "A review on computational EMI modelling

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“…Field computation methods are usually based on Maxwell's equations solved by means of Finite Element Methods (FEM) [1], with different possible approaches: differential methods, such as Finite-Difference Time-Domain (FDTD) or integral methods such as Method of Moments (MoM). On the other hand, equivalent circuit methods may also follow different approaches, namely: Time domain analysis, frequency domain analysis and combined time and frequency domain.…”

Section: Introductionmentioning

confidence: 99%

EMI model of an AC/AC power converter

Espina

Balcells

Arias

et al. 2010

2010 IEEE Vehicle Power and Propulsion Conference

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Abstract-This paper deals with the validation of an EMI model to predict electromagnetic interferences (EMI) produced by power converters. A direct AC to AC matrix converter (MC) has been selected as experimental setup for the paper, but the modeling method can be applied to other converter topologies.The method is based on obtaining a high frequency equivalent circuit, using a combined time and frequency domain approach based on: "EMI source identification→ propagation path impedance→ derived disturbance". The advantages of the proposed procedure are the computational time reduction and the lack of convergence problems, which may arise when using pure time domain procedures. The paper is focused on the prediction of common mode (CM) EMI of a matrix converter. The simulation results of this case will permit the calculation of currents which leak through the ground connections. Two different EMI sources are compared: one based on PWM waveforms obtained from MATLAB ® model and a second one where these data are obtained experimentally from a MC prototype. This procedure allows the comparison of EMI spectra when using simulated waveforms or real source waveforms.

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A review on computational EMI modelling techniques

Cited by 8 publications

References 6 publications

Comparative analysis of EMC methodologies applied on transients studies of impulsive grounding systems

Comparative analysis of EMC methodologies applied on transients studies of impulsive grounding systems

EMI modeling method of AC-AC power converters

EMI model of an AC/AC power converter

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