Inverter EMI modeling and simulation methodologies

Lai, Jih-Sheng; Huang, Xudong; Pepa, E.; Chen, Shaotang; Nehl, T. W.

doi:10.1109/tie.2006.874427

Cited by 127 publications

(15 citation statements)

References 10 publications

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“…Figure 9 shows the equivalent circuit of steering process of DC motor. Set up the function of steering current and conducted interference source based on this equivalent circuit, then use numerical method MATLAB to get the interference solution in time domain [15,16]. Figure 9 takes the steering process with one group of brushes as example to analyze.…”

Section: Analysis Of Interference Sourcementioning

confidence: 99%

Application of Ant Colony Algorithm to the Analysis of Common Mode EMI Model of DC Motor

Liu¹,

Wang²,

Jiang³

2011

EPE

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The Electromagnetic Compatibility (EMC) of Direct Current (DC) motor windings is a system model which is used to reflect the functional characters of the system in the whole EMC specified frequency (150 KHz -30 MHz). For most motor designing process, it is always used to evaluate the inductance of windings in lower or working frequency; however, when analyzing the conducted interference, it is necessary to take some parameters in high frequency into account in building up the EMC model, such as the noticeable capacitance distributed among the windings or between windings and shells. Past research neglected the common-mode current generated by the high frequency interference within motor bearings coupled with shells, since the parasitic capacitance of rotor core comes from armature windings supplied sufficient paths. In EMC modeling process for DC motor problem, first, test the impedance of windings by experiments; then, generate the equivalent circuit with overall parameters. At present, it is a difficulty that how to choose the parameters. Most researchers preferred to adopt analytical calculation results, however, it could not reflect the essence of the model since it requires many simplification. Based on this point, this paper adopted Ant Colony Algorithm (ACA) with positive feedback to intelligently search and globally optimize the parameters of equivalent circuit. Simulation result showed that the impedance of equivalent circuit calculated by this algorithm was the same as experimental result in the whole EMC frequency. In order to further confirm the validity of ACA, PSPICE circuit simulation was implemented to simulate the spectrum of common mode Electromagnetic Interference (EMI) of equivalent circuit. The simulation result accords well with the experiment result received by EMI receiver. So it sufficiently demonstrated correctness of ACA in the analysis of high frequency equivalent circuit.

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Section: Analysis Of Interference Sourcementioning

confidence: 99%

Application of Ant Colony Algorithm to the Analysis of Common Mode EMI Model of DC Motor

Liu¹,

Wang²,

Jiang³

2011

EPE

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“…Importantly, such simulations can be done at an early design stage, before the converter is built, which enables short development time and minimizes risks of late redesigns. With all these benefits, a simulation-based EMC design seems to clearly outperform a conventional measurement-based approach [13].…”

Section: Introductionmentioning

confidence: 99%

“…Even the discrete components can couple to each other [1]. Ultimately, when the entire system is mapped to an accurate circuit model, the used circuit solver has to run numerically stable simulations within a reasonable time [13]. The active components such as semiconductor switches or the modeled nonlinear magnetic effects might require time-domain simulations spanning over a full fundamental period (20 ms for 50 Hz grid frequency), with a necessary resolution to resolve noise up to 30 MHz.…”

Section: Introductionmentioning

confidence: 99%

“…The used models not only accurately represent the EMC behavior of the power converter components, but also ensure stable and time-efficient simulations of the entire circuit. Prior work on EMC analysis of AC-drives has been reported in [21][22][23][24][25][26][27] and EMC analysis of DC-fed motors can be found in [9,10,13,[28][29][30]. However, many of these publications are dealing with academic or low-power applications.…”

Section: Introductionmentioning

confidence: 99%

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EMC Component Modeling and System-Level Simulations of Power Converters: AC Motor Drives

et al. 2021

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EMC simulations are an indispensable tool to analyze EMC noise propagation in power converters and to assess the best filtering options. In this paper, we first show how to set up EMC simulations of power converters and then we demonstrate their use on the example of an industrial AC motor drive. Broadband models of key power converter components are reviewed and combined into a circuit model of the complete power converter setup enabling detailed EMC analysis. The approach is demonstrated by analyzing the conducted noise emissions of a 75 kW power converter driving a 45 kW motor. Based on the simulations, the critical impedances, the dominant noise propagation, and the most efficient filter component and location within the system are identified. For the analyzed system, maxima of EMC noise are caused by resonances of the long motor cable and can be accurately predicted as functions of type, length, and layout of the motor cable. The common-mode noise at the LISN is shown to have a dominant contribution caused by magnetic coupling between the noisy motor side and the AC input side of the drive. All the predictions are validated by measurements and highlight the benefit of simulation-based EMC analysis and filter design.

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“…viii xv [1][2][3][4][5][6]. Electromagnetic compatibility (EMC) is a situation when a system with several circuits co-exists together without exhibiting EMI phenomena.…”

Section: Discussionmentioning

confidence: 99%

Electromagnetic interference prediction of power converter including nonlinear behavior of inductive component

Liu¹

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Inverter EMI modeling and simulation methodologies

Cited by 127 publications

References 10 publications

Application of Ant Colony Algorithm to the Analysis of Common Mode EMI Model of DC Motor

Application of Ant Colony Algorithm to the Analysis of Common Mode EMI Model of DC Motor

EMC Component Modeling and System-Level Simulations of Power Converters: AC Motor Drives

Electromagnetic interference prediction of power converter including nonlinear behavior of inductive component

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