Relevant bibliographies by topics / EMI/EMC

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'EMI/EMC'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 September 2023

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Journal articles on the topic "EMI/EMC"

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Holmstrom, F. R., D. Turner, and E. Fernald. "Rail transit EMI-EMC." IEEE Electromagnetic Compatibility Magazine 1, no. 1 (2012): 79–82. http://dx.doi.org/10.1109/memc.2012.6244954.

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Wu, Yong, Qishuang Ma, and Ping Xu. "Progress of Electromagnetic Compatibility Design for Unmanned Aerial Vehicles." MATEC Web of Conferences 316 (2020): 04008. http://dx.doi.org/10.1051/matecconf/202031604008.

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The electromagnetic environment of UAV system was studied, and three key elements of electromagnetic interference(EMI) are analyzed. The research status of electromagnetic characteristics of UAV system at home and abroad was summarized from numerical simulation of EMI, experimental test of EMI and design of electromagnetic compatibility(EMC). The main contents include the research on electromagnetic characteristics of airborne antenna, EMI of data link and its mechanism, electromagnetic characteristics of internal cables, electromagnetic radiation test, electromagnetic conduction test, system-level EMC design, etc. The key technical challenges faced by the research on EMC of unmanned aerial vehicles at home and abroad are pointed out.
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Wang, Xiyu, Angyang Li, Yanchao Cong, and Hongwei Mu. "Research on electromagnetic compatibility prediction and test verification of spacecraft wireless system." Journal of Physics: Conference Series 2336, no. 1 (August 1, 2022): 012012. http://dx.doi.org/10.1088/1742-6596/2336/1/012012.

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Abstract A calculation method of electromagnetic interference(EMI) margin of spacecraft wireless system is analyzed and researched in this paper, meanwhile the EMI margin is simulated and calculated. The electromagnetic compatibility (EMC) of wireless system is prognosed for a couple of wireless equipment which indicate that there is a risk of EMI among this couple of wireless equipment. According to the simulation results, a series of EMC test including tabletop dispersedly test and comprehensive test has been implemented to verify the prediction method. The test results indicate that there is EMI phenomenon among this couple of wireless equipment which support the accuracy of the prediction method. Combined with simulation and test results, a method for spacecraft wireless system EMC prediction has been proposed. The method will reduce the EMI problem in spacecraft development process and be benefit to subsequent maintenance.
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Ma, Feng Ying. "EMI Soft-Sensing and Filter Based on Wavelet Applied in Underground Monitoring System." Advanced Materials Research 503-504 (April 2012): 1360–64. http://dx.doi.org/10.4028/www.scientific.net/amr.503-504.1360.

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In order to enhance Electromagnetic Compatibility (EMC) of monitoring system, the EMI distribution should be obtained. But the measurement could not be accomplished perfectly because of underground condition. A novel EMI soft-sensing method was proposed to measure the electromagnetic interference(EMI) indirectly. The wavelet time-frequency analysis was introduced to monitoring system and the EMI source could be ascertained. The startup time, duration and waveform could be detected based on the running records of underground electric equipments. The electrical fast transient/burst (EFT/B), the most outstanding interference, was studied to verify the validity of wavelet analysis. EMI filter was improved in accordance of the EMI gotten from wavelet analysis. Power port immunity was developed obviously. Therefore the EFT/B of data port was restrained markedly with wavelet filtration. Coordinative effect of EMI power and wavelet filter resulted in reduction of false alarms. Results indicate that wavelet analysis and the improved EMI filter have enhanced the EMC of monitoring substations and sensors obviously. It is concluded the wavelet analysis is of guiding significance to measure underground EMI distribution and EMC of the underground monitoring system.
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Gao, Feng, Chengkai Ye, Zilong Wang, and Xu Li. "Improvement of Low-Frequency Radiated Emission in Electric Vehicle by Numerical Analysis." Journal of Control Science and Engineering 2018 (October 1, 2018): 1–8. http://dx.doi.org/10.1155/2018/5956973.

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In this paper, a methodology for improving vehicle-level radiated electromagnetic interference (EMI) in electric vehicle (EV) is proposed. This methodology predicts vehicle-level radiated EMI by using the multiport network theory, based on analyzing the contribution from each electronic component to find out the main EMI source. To validate its effectiveness, the proposed methodology is applied in an actual EV for low-frequency radiated emissions. Simulation in a commercially available electromagnetics software and measurement in the EV are combined to predict the vehicle-level emissions, and then the electronic component with the greatest EMI that causes failure to meet the EMC standard is identified. After improving this component, the vehicle-level radiated emission is reduced to comply with the EMC standard, proving that the presented numerical method is effective. The proposed methodology can also be used in other EMC issues, regardless of the amount of interference sources and sensitive equipment.
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Wu, Cunxue, Feng Gao, Hanzhe Dai, and Zilong Wang. "A Topology-Based Approach to Improve Vehicle-Level Electromagnetic Radiation." Electronics 8, no. 3 (March 25, 2019): 364. http://dx.doi.org/10.3390/electronics8030364.

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The popularity of the electric vehicle (EV) brings us many challenges of electromagnetic compatibility (EMC). Automotive manufacturers are obliged to keep their products in compliance with EMC regulations. However, the EV is a complex system composed of various electromagnetic interferences (EMI), sensitive equipment and complicated coupling paths, which pose great challenges to the efficient troubleshooting of EMC problems. This paper presents an electromagnetic topology (EMT) based model and analysis method for vehicle-level EMI prediction, which decomposes an EV into multi-subsystems and transforms electromagnetic coupling paths into network parameters. This way, each part could be modelled separately with different technologies and vehicle-level EMI was able to be predicted by algebra calculations. The effectiveness of the proposed method was validated by comparing predicted vehicle-radiated emissions at low frequency with experimental results, and application to the troubleshooting of emission problems.
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Ganesan, R., and K. R. Kini. "Electromagnetic Interference/Compatibility (EMI/EMC) Measurement." IETE Technical Review 20, no. 5 (September 2003): 415–24. http://dx.doi.org/10.1080/02564602.2003.11417100.

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Li, Hongyi, Di Zhao, Shaofeng Xu, Pidong Wang, and Jiaxin Chen. "High Dimensional Electromagnetic Interference Signal Clustering Based On SOM Neural Network." Electronics ETF 20, no. 1 (July 15, 2016): 27. http://dx.doi.org/10.7251/els1620027l.

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In this paper, we study the spectral characteristics and global representations of strongly nonlinear, non-stationary electromagnetic interferences (EMI), which is of great significance in analysing the mathematical modelling of electromagnetic capability (EMC) for a large scale integrated system. We firstly propose to use Self-Organizing Feature Map Neural Network (SOM) to cluster EMI signals. To tackle with the high dimensionality of EMI signals, we combine the dimension reduction and clustering approaches, and find out the global features of different interference factors, in order to finally provide precise mathematical simulation models for EMC design, analysis, forecasting and evaluation. Experimental results have demonstrated the validity and effectiveness of the proposed method.
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Seidman, Seth J., Wolfgang Kainz, Jon Casamento, and Donald Witters. "Electromagnetic Compatibility Testing of Implantable Neurostimulators Exposed to Metal Detectors." Open Biomedical Engineering Journal 4, no. 1 (March 9, 2010): 63–70. http://dx.doi.org/10.2174/1874120701004010063.

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This paper presents results of electromagnetic compatibility (EMC) testing of three implantable neurostimulators exposed to the magnetic fields emitted from several walk-through and hand-held metal detectors. The motivation behind this testing comes from numerous adverse event reports involving active implantable medical devices (AIMDs) and security systems that have been received by the Food and Drug Administration (FDA). EMC testing was performed using three neurostimulators exposed to the emissions from 12 walk-through metal detectors (WTMDs) and 32 hand-held metal detectors (HHMDs). Emission measurements were performed on all HHMDs and WTMDs and summary data is presented. Results from the EMC testing indicate possible electromagnetic interference (EMI) between one of the neurostimulators and one WTMD and indicate that EMI between the three neurostimulators and HHMDs is unlikely. The results suggest that worst case situations for EMC testing are hard to predict and testing all major medical device modes and setting parameters are necessary to understand and characterize the EMC of AIMDs.
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V, Popov, and Shevchenko A. "ELECTROMAGNETIC COMPATIBILITY OF RES ON RAILWAY." Visnyk Universytetu “Ukraina”, no. 1 (28) 2020 (2020): 7–22. http://dx.doi.org/10.36994/2707-4110-2020-1-28-01.

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This work reviews the main related problems of electromagnetic compatibility (EMC) of the locomotive radio system GSM-R in modern railway transport. The typical internal electromagnetic interference (EMI), caused by the high density of the equipment layout in the rolling stock, and external electromagnetic interference generated by public cellular mobile communication networks and other radio systems are considered. The results of experiments to determine the parameters of public cellular mobile communication networks along the selected railway section show a rather high level of signals that are EMI for GSM-R and affecting on EMC.
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Dissertations / Theses on the topic "EMI/EMC"

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Hedlund, Tobias. "EMC/EMI i solcellssystem : Minimering av elektromagnetiska störningar från solcellsanläggning." Thesis, Karlstads universitet, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-85086.

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This report presents a theoretical background to electromagnetic interference from photovoltaic systems that use power optimizers. The purpose is to carry out measurements at an existing facility to analyze and discuss appropriate measures to minimize disturbance levels. The work is designed by Glava Energy Center (GEC) and measurements are carried out together with the Swedish Electrical Safety Agency (Elsäkerhetsverket) and Rencke's El & Mätteknik. The report concludes with the results of measurement and a discussion of appropriate measures to achieve electromagnetic compatibility (EMC), designed for the specific facility. Finally, a brief discussion is given about future work in this area.
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Murase, John Takeshi. "Investigation of Buck Converter Radiated Emissions (150 kHz - 30 MHz) Measured according to CISPR 25." Thesis, KTH, Elektroteknisk teori och konstruktion, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-140954.

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Electromagnetic compatibility and compliance with relevant standards is imperative for commercial success for any type of electronic equipment. Since more and more electronics are constantly added into today’s vehicles, this is a highly significant matter in the automotive business. The primary source of electric energy in an on-road vehicle is typically a 12 or 24 volt battery; this makes voltage step down converters ubiquitous in virtually any automotive electronic system. In strive for ever more environmental friendly and energy efficient solutions a switch mode power supply is most often the given choice when it comes to the task of voltage conversion. However, the use of switch mode power supplies presents a new set of challenges when it comes to successfully comply with the electromagnetic emission standards. Knowledge and understanding about how different design parameters impact on EMC performance is key when few prototype runs and short time to market lies in focus. This text will investigate just how different layout design parameters affect the radiated emissions from a buck converter. Emphasis lies on radiated emissions in the lower frequency range up to a few MHz. Both computer simulations and practical measurements indicate the same thing; in the lower part of the frequency spectrum, when measured according to CISPR 25, radiated emissions from buck converters are dominated by voltage driven mechanisms. Along the way we will see how PCB layout alone can be responsible for differences in measured radiated emission levels of well over 20 dB.
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Khan, Zulfiqar A. "EMI/EMC analysis of electronic systems subject to near zone illuminations." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1196207323.

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DeConink, Chad, Sarah DeConink, James Dean, Brad Martin, and Kurt Kosbar. "EMI AND SOFTWARE IMPROVEMENTS TO THE SOLAR MINER IV TELEMETRY PROCESSOR." International Foundation for Telemetering, 2004. http://hdl.handle.net/10150/605310.

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International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California
The UMR Solar Car uses a telemetry processor to collect, compute, and transmit data to the driver of the car and a nearby chase vehicle. The original processor had deteriorated from environmental extremes and vibration. There were also problems with electromagnetic interference from the high efficiency electric motor switching electronics, difficulties with the many unplanned additions made to the processor in the field, and the unstructured software that was becoming difficult to maintain. This project consists of creating a replacement telemetry system that is more robust mechanically, and electrically, substantially improving the EMI performance of the device, and reworking the hardware and software to make it easier to maintain and upgrade.
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Mrad, Roberto. "Conducted EMC modeling and EMI filter design integrated class-D amplifiers and power converters." Thesis, Ecully, Ecole centrale de Lyon, 2014. http://www.theses.fr/2014ECDL0019/document.

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Les convertisseurs de puissance sont largement utilisés de nos jours dans des applications qui demandent une grande autonomie énergétique, comme par exemple ceux qui sont alimentés par des batteries. En particulier, les amplificateurs de type Class-D sont fréquemment utilisés dans les applications audio. Ces amplificateurs commutés ont une architecture ressemblante à celle d'un convertisseur DC-DC, ce qui les permet d'avoir une efficacité énergétique élevée. Cependant, leur inconvénient majeur est la forte émission en perturbations électromagnétiques (EM). Cela peut causer des problèmes de conformité avec les normes de compatibilité électromagnétique (CEM), ou bien perturbé le bon fonctionnement des applications électroniques qui l'entour. Pour cela, ils existent de nombreuses études qui permettent de réduire les émissions d'un amplificateur de Class D. Cependant, cela n'est pas suffisant pour retirer le filtre de CEM. Il est donc nécessaire d'optimiser ces filtres et de faciliter leurs conceptions. Ceci est le but de la présente thèse et il est divisé en quatre grandes parties. La première partie commence par développer une technique de modélisation dans le domaine fréquentiel. Cette technique qui est basée sur la détermination et la manipulation des matrices d'impédances a comme but de simuler et prédire les perturbations EM générées par un amplificateur de Class D. Tous les aspects théoriques de la méthode ont été développés. Ensuite, une application pratique sur un système de Class D dédié à la téléphonie mobile nous a permis de valider la méthode jusqu'à une fréquence de 100 MHz. Un amplificateur de Class D est une source de perturbation aussi bien sur les rails d'alimentation que sur les rails de sortie. Pour cela, le filtre de CEM est nécessaire sur les rails de l'alimentation comme il y est en sortie. Néanmoins, un filtre correctement construit doit être conçu en prenant en compte l'impédance de la charge qui est la batterie dans ce cas. Pour cela, la deuxième partie a pour objectif la mesure de l'impédance de la batterie sur la gamme de fréquence considérée. Ainsi, une technique de mesure d'impédance de batterie en utilisant un impédance mètre est développée. Ensuite, une application expérimentale sur un convertisseur DC-DC et une batterie nous a permis de valider la procédure de mesure. La troisième partie s'est focalisée sur l'optimisation du filtre de CEM. Le modèle fréquentiel développé dans la première partie est intégré dans une boucle d'optimisation basée sur un algorithme génétique. L'optimisation inclus plusieurs critères dans sa fonction objective qui sont l'augmentation de la capacité du filtre à réduire les émissions EM, la diminution des pertes supplémentaires due à l'utilisation du filtre et finalement le gain du filtre dans la bande de fréquence du signal audio. Cette étude est poursuivie par une validation expérimentale. La quatrième et la dernière partie étudie et quantifie les impacts du filtre de CEM sur la qualité audio de l'amplificateur. En effet, le filtre de CEM est l'un des chemins propagation du signal audio. Par suite, tout comportement non linéaire du filtre conduit à la distorsion du signal audio. Pour cela, cette partie est dédiée à la modélisation et la simulation des composants passifs contenant un matériau magnétique. En particulier, l'étude s'est focalisée sur la modélisation des perles de ferrite en utilisant le modèle de matériaux magnétiques Jiles-Aterthon. Les résultats de simulations sont comparés avec la mesure dans le domaine temporel et fréquentiel. En plus, le calcul du taux de distorsion harmonique nous a permis de valider le modèle sur une large plage d'amplitude
Switching power management circuits are widely used in battery powered embedded applications in order to increase their autonomy. In particular, for audio applications, Class-D amplifiers are a widespread industrial solution. These, have a similar architecture of a buck converter but having the audio signal as reference. The switching nature of these devices allows us to increase significantly the power efficiency compared to linear audio amplifiers without reducing the audio quality. However, because of the switching behavior, Class-D amplifiers have high levels of electromagnetic (EM) emissions which can disturb the surrounding electronics or might not comply with electromagnetic compatibility (EMC) standards. To overcome this problem much architecture appeared in the state of the art that reduces the emissions, however, this has never been enough to remove electromagnetic interference (EMI) filters. It is then useful to optimize these filters, thus, it has been set as the goal of this PhD thesis. The latter has been divided to four main axes which can be resumed by the following. First, this work started by developing a frequency domain modeling method in order to simulate and predict the EMI of Class-D amplifiers in the final application. The method is based on system to block decomposition and impedance matrix modeling and manipulation. After providing all the theoretical background, the method has been validated on integrated differential Class-D amplifier. The experimental measurements have permitted to validate the method only up to 100MHz. However, this is sufficient to cover the conducted EMC frequency band. Second, the EMI at the supply rails of Class-D amplifiers has been treated. As the battery is often the same power supply for all applications in an embedded system, an EMI filter or a decoupling capacitor is needed to prevent the noise coupling by common impedance. Designing this filter needs the knowledge of the battery impedance at the desired frequencies. Therefore the present work dealt also with measuring the high frequency impedance of a battery. Afterwards, an experimental validation has been carried on with a DC-DC converter and a Class-D amplifier. The developed model allows a virtual test of the switching device in the final application. However, it is more useful if the model is able to help the system integrator in designing filters. Thus, third, the model has been implemented in an optimization loop based on a genetic algorithm in order to optimize the filter response, and also, reduce the additional power losses introduced by an EMI filter. The optimization search space has been limited to the components available on the market and the optimization result is given as component references of the optimal filter referring to the optimal solution found. This procedure has been validated experimentally. Finally, EMI filters often are constituted by magnetic components such as ferrite beads or inductors with magnetic cores. Thus, introducing the EMI filter in the audio path, adds a nonlinear behavior in the audio frequency band. Designing a high quality EMI filter require taking into account this phenomenon and studying its impact of the original amplifier audio performance. Therefore, the Jiles-Atherton model for magnetic materials has been used for ferrite bead modeling. Hereafter, the impact on the time and frequency domain signals has been simulated and compared to measurements. Finally, the total harmonic distortion (THD) has been computed for different signal amplitudes and compared to the THD measured using an audio analyzer. Accurate results have been obtained on a wide range of signal amplitudes. As a conclusion, this work aimed to design optimal EMI filters for Class-D amplifiers. Thus, we dealt with improving their EMI response, reducing their additional power losses and evaluating their impact on the audio quality
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Bishnoi, Hemant. "Behavioral EMI-Models of Switched Power Converters." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/23936.

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Measurement-based behavioral electromagnetic interference (EMI) models have been shown earlier to accurately capture the EMI behavior of switched power converters. These models are compact, linear, and run in frequency domain, enabling faster and more stable simulations compared to the detailed lumped circuit models. So far, the behavioral EMI modeling techniques are developed and applied to the converter's input side only. The resulting models are therefore referred to as "terminated EMI models". Under the condition that the output side of the converter remains fixed, these models can predict the input side EMI for any change in the impedance of the input side network. However, any change at the output side would require re-extraction of the behavioral model. Thus the terminated EMI models are incapable of predicting the change in the input side EMI due to changes at the output side of the converter or vice versa. The above mentioned limitation has been overcome by an "un-terminated EMI model" proposed in this dissertation. Un-terminated EMI models are developed here to predict both the common-mode (CM) and the differential (DM) noise currents at the input and the output sides of a motor-drive system. The modeling procedure itself has been simplified and now requires fewer measurements and results in less noise in the identified model parameters. Both CM and DM models are then combined to predict the total noise in the motor drive system. All models are validated by experiments and their limitations identified. A significant portion of this dissertation is then devoted to the application of behavioral EMI models in the design of EMI filters. Comprehensive design procedures are developed for both DM and CM filters in a motor-drive system. The filters designed using the proposed methods are experimentally shown to satisfy the DO-160 conducted emissions standards. The dissertation ends with a summary of contributions, limitations, and some future research directions.
Ph. D.
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Wan, Fayu. "Software based approaches to improve the EMC performance of a microcontroller using in situ EMI monitoring." Rouen, 2011. http://www.theses.fr/2011ROUES040.

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This dissertation discusses immunity measurement and improvement of intelligent components in the automotive field. The wide frequency band and the failure criterion to represent the behavior of components under pressure of interference are the difficulties in the immunity measurement. The other main task in this dissertation is to improve the immunity of components without adding too much cost. The dissertation is divided into three chapters. The first chapter concentrates on immunity measurement. The injection circuit is important to the in situ test bench because it limits the measurement bandwidth and the accuracy of the measurement. An on board on board bias tee extends the measurement bandwidth from 15 kHz to 1 GHz. A measurement algorithm, that avoids the non-uniform comparison between the sampling data and the reference signal, improves the accuracy of the immunity result. Two failure ceriteria can identify the linear and nonlinear distortion of an analogue digital converter (ADC). The second chapter presents interference signal detection and compensation technique. A simple technique is used to detect the continuous wave interference (CWI) on the power supply and at the analogue input port of the microcontroller without adding too many components. The simulation of the schematic circuit and the measurement can validate the effectiveness of the method. Finally, based on the detection result; a compensation technique compensates both the interference signal on the power supply and at the input port of the microcontroller. The third chapter is composed of three sections. The first section introduces the defensive software and hardware methods to protect the microcontroller. Then the second section presents the application of the interference detection technique to improve the immunity of components in the automotive field. Finally the third section shows the influence of interference signal on a proportional integral derivative (PID) control system; the proportional integral derivative control system is modelled in Matlab. The interference detection is used in the fault tolerant control field to avoid the false fault detection.
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Comin, Rodrigo. "Desenvolvimento de metodologia de simulação para conformidade em compatibilidade eletromagnética para projetos eletrônicos." Universidade do Vale do Rio dos Sinos, 2017. http://www.repositorio.jesuita.org.br/handle/UNISINOS/7021.

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O setor automotivo nacional, no segmento de fabricação de carrocerias para ônibus, vem buscando melhorar a qualidade de produção de seus veículos, visando atender as exigências do mercado interno e externo, por meio de especificações de projetos eletrônicos seguindo normas internacionais. Neste contexto, as normas de compatibilidade eletromagnética destacam-se, pois, possuem um papel importante para garantir que os equipamentos possam operar de forma segura, sem gerar ou sofrer interferências. Este trabalho tem como objetivo desenvolver uma metodologia para projetar produtos eletrônicos que necessitam atender normas de compatibilidade eletromagnética, por meio de estudos de técnicas de emissões radiadas e conduzidas, e uso de ferramentas computacionais para simulação da placa de circuito impresso. A partir deste estudo, pode-se diminuir investimentos com laboratórios de testes, tempo de desenvolvimento e disponibilizar produtos ao mercado de forma mais eficiente. O uso de técnicas apropriadas e boas práticas em projetos são meios adequados para atender requisitos de normas, porém a evolução das tecnologias e adição de mais circuitos em áreas menores torna necessário avançar nos conhecimentos. Assim, deve-se compreender de forma detalhada as técnicas para emissões de modo comum e diferencial, desenvolver simulações que possam prever resultados em testes de laboratórios e propor alterações em projeto mecânico ou eletrônico que atendam os limites determinados em normas.
The national automotive division, more precisely in the bus manufacturing segment, efforts are being deposited to improve the manufacturing quality of its vehicles in order to meet the requirements of the internal and external market through electronic projects based on international standards. Furthermore, the electromagnetic compatibility standards stand out because they have a major importance ensuring that electronic devices are able to provide safety to its users, without interfering or being interfered by other devices. The objective of this research is to develop a methodology to design electronic devices which must meet the standards requirements of electromagnetic compatibility. This goal is achieved through the study of radiated and conducted emissions techniques, and using computational tools for simulation of printed circuit boards. From this study it will be possible to reduce costs with laboratory tests, reduce the time required for development, and provide products to the customers in an efficient way. The use of appropriated techniques and good practices during the designs process are the proper way to meet standards and requirements. However, with the evolution of technology and addition of more electronic circuits in smaller areas requires to acquire more knowledge and go deeper in this study. Thus, it is necessary to understand in details the common mode and differential emissions technics, develop simulations which can provide a preview of what the laboratory tests may result, and propose changes in the mechanic and electronic project design in order to meet the limits of the requirements determined in the standards.
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Zafaruddin, Mohammed. "Finite Element Analysis of EMI in a Multi-Conductor Connector." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1354861237.

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González, Díez David. "Caracterizacion de las estructuras, control y lay-out de convertidores conmutados para la reduccion de perturbaciones." Doctoral thesis, Universitat Politècnica de Catalunya, 2001. http://hdl.handle.net/10803/6318.

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DE LA TESIS

Esta Tesis se centra en el estudio de las perturbaciones conducidas generadas por un ondulador de tensión en configuración de puente y alimentado de red a través de un rectificador no controlado. El objetivo de esta Tesis es poder identificar el origen de las perturbaciones y poder cuantificar de una forma relativamente rápida y sencilla el efecto de diversos factores (topología, lay-out, técnicas de modulación y tipo de componentes) sobre la propagación de las mismas. Para ello se ha desarrollado una metodología de estudio que es perfectamente válida y aplicable sin grandes dificultades a otro tipo de topologías, utilicen o no la conmutación dura. El método de estudio se basa en la estructura fuente-medio de propagación-perturbación y en el planteamiento de circuitos equivalentes de parámetros concentrados, cuyas ecuaciones son resueltas en el dominio frecuencial. En esta metodología, que permite discriminar la contribución de los dos modos de propagación (modo común, MC, y modo diferencial, MD) al nivel global de perturbación, se ha primado la sencillez y robustez de simulación del modelo frente a la exactitud. El método propuesto ofrece buenos resultados hasta una frecuencia de 5MHz aproximadamente.

En el Capítulo 1 se introduce el problema planteado por las perturbaciones electromagnéticas generadas por los convertidores conmutados, se describe y caracteriza todo el instrumental (analizador de espectros, red artificial, pinza amperimetrica de alta frecuencia), la planta experimental así como la herramienta matemática utilizada.

En el Capítulo 2 se aborda el tema de la caracterización del medio de propagación de las perturbaciones. En primer lugar se describe el método de medida de impedancias utilizado, que es una de las aportaciones de la Tesis, para después presentar los resultados obtenidos a la hora de caracterizar las impedancias significativas del sistema. A partir de estas medidas se obtienen circuitos equivalentes de parámetros concentrados que caracterizan el medio de propagación.

En el Capítulo 3 se estudian las perturbaciones que generan individualmente el rectificador de entrada y el ondulador. El estudio se lleva a cabo sobre una configuración monofásica para una mayor simplicidad del mismo. En este Capítulo se caracteriza la fuente de perturbación en el caso de ambos convertidores y, junto con la caracterización del camino de propagación obtenida en el Capítulo 2, se calculan las perturbaciones generadas. Gracias a los modelos obtenidos es posible calcular el efecto de diversos parámetros sobre las perturbaciones y la contribución de ambos modos de propagación (modo común y diferencial) al nivel final de perturbación.

En el Capítulo 4 se combinan los resultados obtenidos en el Capítulo 3 para obtener la perturbación que se propaga hacia la red en la asociación en cascada de ambos convertidores. Tanto en el Capítulo 3 como en el Capítulo 4 la validación del modelo se lleva a cabo por comparación de los resultados experimentales con los obtenidos por simulación.

Una vez cumplidos los objetivos de la Tesis, el Capítulo 5 ilustra la validez de la metodología desarrollada en el Capítulo 3. En el Capítulo 5 se aplica esta metodología al estudio de las perturbaciones en MC generadas por el ondulador y que se propagan hacia la carga. Este Capítulo es una extensión al caso trifásico y un ejemplo de aplicación de gran interés industrial. En este Capítulo aparece una de las aportaciones de la Tesis: una técnica de modulación orientada a la reducción del MC generado por el ondulador. Para demostrar la validez del modelo se comparan las medidas de corriente en MC en el lado carga con los valores obtenidos a partir del modelo.

Las conclusiones de la Tesis aparecen en el Capítulo 6. También se describen los trabajos futuros que se sugieren a partir de los resultados de la Tesis.
OF THE THESIS

The subject of this Thesis is to study conducted disturbances produced by a voltage source inverter supplied from the mains through a rectifier. The main goal is to identify the origin of conducted disturbances and also quantify in a quick and easy way the influence of different factors (topology and lay-out of the converter, switching patterns, components) on EMI . In order to achieve this goal, a systematic analysis approach has been developed. This new methodology can be easily applied to any converter topology, whatever the kind of switching (soft or hard) is used. The analysis is based on the source of noise-propagation path-disturbance approach and consists in the setting out of two equivalent circuits of lumped parameters, one for each mode of propagation. This separate treatment of both modes of propagation allows the calculation of their contribution to the global level of disturbance. Equations drawn from these equivalent circuits are solved in the frequency domain. This approach avoids all the problems of time-domain simulations and provides robust and quick simulations rather than very accurate results. The simulation results of this methodology show a good agreement with experimental measures up to 5MHz.

Chapter 1 describes problems caused by electromagnetic disturbances generated by switched power converters. The state of the art about this matter is presented. All instruments used to carry out measures (spectrum analyser, LISN, HF current clamp) are described and modelled. The experimental set-up is thoroughly described. Also some considerations about mathematical tools used are presented.

Chapter 2 is devoted to study the propagation path of disturbances. First of all, the impedance measuring method is described, which is one of the contributions of the Thesis. After that, main impedances of the system are identified and measured. From these results, equivalent circuits of lumped parameters that model the main impedances of the propagation path are derived.

In Chapter 3, disturbances generated in a single phase arrangement by the rectifier and the inverter working separately are studied. Source of noise in both cases are identified and modelled. Finally, disturbances are calculated taking into account results of Chapter 2.

Results obtained in Chapter 3 are combined in Chapter 4 in order to obtain the disturbance reaching the mains when both converters (rectifier and inverter) are connected in cascade. Experimental validation of the model are presented in Chapters 3 and 4, by comparing results of measures with those provided by simulation.

Once main goals of the Thesis are achieved, Chapter 5 shows the validity of the methodology developed in Chapter 3 when it is used to calculate the CM currents in the load side of a three-phase inverter. In this Chapter another contribution of the Thesis is presented: a new modulation technique for three-phase inverters specially intended to reduce CM currents in the load side. Comparison between simulation results and measurements show a good agreement.

The conclusions of the Thesis are summarised in Chapter 6. The future works suggested by the results of the Thesis are also presented.
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Books on the topic "EMI/EMC"

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Archambeault, Bruce, Omar M. Ramahi, and Colin Brench. EMI/EMC Computational Modeling Handbook. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4757-5124-6.

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Archambeault, Bruce, Colin Brench, and Omar M. Ramahi. EMI/EMC Computational Modeling Handbook. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1557-9.

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Archambeault, Bruce. EMI/EMC Computational Modeling Handbook. Boston, MA: Springer US, 1998.

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Archambeault, Bruce. EMI/EMC Computational Modeling Handbook. Boston, MA: Springer US, 2001.

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Colin, Brench, and Ramahi Omar M, eds. EMI/EMC computational modeling handbook. 2nd ed. Boston: Kluwer Academic Publishers, 2001.

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Archambeault, Bruce. EMI/EMC computational modeling handbook. Boston: Kluwer, 1998.

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C, Edelson, Holmstrom F. Ross, United States. Urban Mass Transportation Administration. Office of Technical Assistance, Transportation Systems Center, Comstock Engineering Inc, and United States. Urban Mass Transportation Administration. Technical Assistance Program, eds. The UMTA rail transit EMI/EMC program: An overview and summary. Washington, D.C.]: Urban Mass Transportation Administration, 1987.

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M, Butler Chalmers, and National Institute of Standards and Technology (U.S.), eds. EMI/EMC metrology challenges for industry: A workshop on measurements, standards, calibrations, and accreditation. Boulder, Colo: U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology, 1997.

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Engineers, Society of Automotive, ed. IDB-C data bus: Report on studies for a) Modeling, simulation, and signal analysis, b) EMC/EMI measurements and testing. Warrendale, Pa: Society of Automotive Engineers, 2002.

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(Firm), Aerojet, and United States. National Aeronautics and Space Administration., eds. Integrated Advanced Microwave Sounding Unit-A (AMSU-A), engineering test report, Electromagnetic Interference (EMI)/Electromagnetic Radiation (EMR) and Electromagnetic Compatibility (EMC) for the METSAT/METOP AMSU-A1: Contract no. NAS 5-32314. [Azusa, Calif.]: Aerojet, 1999.

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Book chapters on the topic "EMI/EMC"

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Archambeault, Bruce, Colin Brench, and Omar M. Ramahi. "Creating EMI/EMC Models." In EMI/EMC Computational Modeling Handbook, 153–207. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1557-9_7.

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Archambeault, Bruce, Omar M. Ramahi, and Colin Brench. "Creating EMI/EMC Models." In EMI/EMC Computational Modeling Handbook, 145–92. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4757-5124-6_7.

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Russ, Samuel H. "EMI/EMC: Design and Susceptibility." In Signal Integrity, 137–47. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29758-3_11.

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Russ, Samuel H. "EMI/EMC: Design and Susceptibility." In Signal Integrity, 155–66. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86927-4_12.

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Ashok Kumar, L., and Y. Uma Maheswari. "EMI and EMC Simulation Software." In Electromagnetic Interference and Electromagnetic Compatibility, 149–89. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003362951-5.

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Archambeault, Bruce, Colin Brench, and Omar M. Ramahi. "Special Topics in EMI/EMC Modeling." In EMI/EMC Computational Modeling Handbook, 209–52. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1557-9_8.

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Archambeault, Bruce, Omar M. Ramahi, and Colin Brench. "Special Topics in EMI/EMC Modeling." In EMI/EMC Computational Modeling Handbook, 193–236. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4757-5124-6_8.

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Keller, Reto B. "EMC Design Guidelines." In Design for Electromagnetic Compatibility--In a Nutshell, 265–76. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-14186-7_16.

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AbstractThese EMC design guidelines are here to help you understand the basics of a good design of PCBs and cabling. Good in this context means with low electromagnetic interference (EMI). The guidelines presented in this chapter are the personal guidelines of the author and helped him to pass EMC testing of several products. However, be aware that guidelines alone cannot do magical things to your design and they cannot be universally applied. Be wary! However, getting the basics right will reduce the pain of EMC testing and increase the chances of right-first-time. And that is all that we want, right?
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Archambeault, Bruce, Colin Brench, and Omar M. Ramahi. "Introduction." In EMI/EMC Computational Modeling Handbook, 1–12. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1557-9_1.

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Archambeault, Bruce, Colin Brench, and Omar M. Ramahi. "Standard EMI/EMC Problems for Software Evaluation." In EMI/EMC Computational Modeling Handbook, 269–88. Boston, MA: Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1557-9_10.

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Conference papers on the topic "EMI/EMC"

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"EMI encounters-EMC remedies." In Proceedings of the International Conference on Electromagnetic Interference and Compatibility'99. IEEE, 1999. http://dx.doi.org/10.1109/icemic.1999.871674.

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Sertic, V., and K. Malaric. "EMI protection and EMC antennas." In 47th International Symposium ELMAR, 2005. IEEE, 2005. http://dx.doi.org/10.1109/elmar.2005.193716.

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"Session I23A4 EMI and EMC." In 2008 International Conference on Microwave and Millimeter Wave Technology. IEEE, 2008. http://dx.doi.org/10.1109/icmmt.2008.4540431.

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"Session 7PO6: EMI and EMC." In 2012 International Conference on Microwave and Millimeter Wave Technology (ICMMT). IEEE, 2012. http://dx.doi.org/10.1109/icmmt.2012.6230248.

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Yao, Wenqing, Xuelian Shang, and Rigang Chen. "Review on Electromagnetic Compatibility Research and Practice in Nuclear Power Plants." In 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-91853.

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Abstract This paper studies the electromagnetic compatibility (EMC) for the instrumentation & control system, communication devices and electric equipments in commercial nuclear power plants (NPPs). It reviews the EMC research activities and practices for NPPs in United States, France, Russia and China. The paper first familiars the readers with electromagnetic interference (EMI) knowledge and examples that are most related to NPP EMC issues, including EMI source, coupling path and sensitive equipment. It then summarizes the historical research activities, focusing on the development of EMC standards for NPPs in those four countries. It is concluded that the current EMC standard systems are not uniform and lack of specific test procedures and quantification methods. They are insufficient for the nuclear industry to execute. At last, recent popular research topics for NPPs are reviewed including systematic EMC design, EMC design and control measures, EMC prediction and electromagnetic environment monitoring. Similar research work done in the general EMC community or by other industries has been introduced. It indicates that for NPPs EMC design especially at the system level is still immature, electromagnetic simulation can be a good tool to assist the EMC design and that EMC control regulations and environment monitoring become more and more necessary as wireless components and devices are being used.
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Ong, Hueh Chuah, Leong Hai Koh, Bac Xuan Nguyen, Fu Cheng Zhang, and Wai Kuan Loh. "Designing DC Optimizer for EMC/EMI Compliance." In 2019 IEEE 4th International Future Energy Electronics Conference (IFEEC). IEEE, 2019. http://dx.doi.org/10.1109/ifeec47410.2019.9015168.

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Scott, Larry D., and John R. Barnum. "EMC/EMI Testing on a Modest Budget." In SAE 2007 Commercial Vehicle Engineering Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2007. http://dx.doi.org/10.4271/2007-01-4202.

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Meiguni, Javad, Morten Soerensen, Wei Zhang, Ahmad Hosseinbeig, David Pommerenke, Kaustav Ghosh, Philippe Sochoux, Jacques Rollin, and Angela Li. "System Level EMC for Multiple EMI Sources." In 2019 IEEE International Symposium on Electromagnetic Compatibility, Signal & Power Integrity (EMC+SIPI). IEEE, 2019. http://dx.doi.org/10.1109/isemc.2019.8825303.

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O, Rahul Manohar, and Anju Pradeep. "All Dielectric Absorber for EMI/EMC Applications." In 2022 International Conference on Communication, Computing and Internet of Things (IC3IoT). IEEE, 2022. http://dx.doi.org/10.1109/ic3iot53935.2022.9767975.

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Rani, G. Sanadhya, Deepika Vinod, Jemimah Ebenezer, and S. A. V. Satya Murty. "EMI/EMC testing of wireless sensor networking node." In 2015 13th International Conference on Electromagnetic Interference and Compatibility (INCEMIC). IEEE, 2015. http://dx.doi.org/10.1109/incemic.2015.8055893.

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Reports on the topic "EMI/EMC"

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Vytal, John. Shipboard EMI/EMC Test Report for the Reduced Ships-Crew by Virtual Presence (RSVP) Advanced Technology Demonstration (ATD). Fort Belvoir, VA: Defense Technical Information Center, July 1999. http://dx.doi.org/10.21236/ada369429.

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