EPE Association: EPE-PEMC 2004 - Topic 10-1: EMI & over-voltage protection

EPE-PEMC 2004 - Topic 10-1: EMI & over-voltage protection
You are here: EPE Documents > 04 - EPE-PEMC Conference Proceedings > EPE-PEMC 2004 - Conference > EPE-PEMC 2004 - Topic 10: ELECTROMAGNETIC COMPATIBILITY > EPE-PEMC 2004 - Topic 10-1: EMI & over-voltage protection

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   Analog Protection As A Way Of Voltage Source Conveter Reliability Increasing
By Gurevich M. K., Shershnev Y. A. [View]
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Abstract: The typical disadvantage of voltage source converter (VSC) is its inclination to interphase short circuit mode. There are rather few protecting technologies existing for a converter and most of them are computer control technologies. Analog overcurrent protection circuit, its performance and device option are discussed at the paper.

   Designing Power Line Filters For Dc-Dc Converters
By K. S. Kostov, V. Tuomainen, J. Kyyrae, T. Suntio [View]
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Abstract: A method for designing power line filters for SMPS is presented. The practical design work is optimized, by excluding the nonviable combinations of filter components. The designer can choose among the theoretically viable combinations, to try practical designs. The theoretical calculations are based on chain parameters. As an illustration of the method a single stage ð-filter for a buck converter is designed. The results prove the design procedure to be simple and straightforward.

   EMC and CE Mark Directive
By Jonas Soederlund [View]
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Abstract: EMC and CE Mark Directive

   Magnetic Field Of Chain Line
By Yuri A. Krasnitsky [View]
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Abstract: Magnetic field of a power line span is calculated in assumption that the wire configuration is described by the chain line, or catenary, equation. Computing procedure is worked out based on piecewise linearization of wire segments. The observation point may be moved along and/or transversal with respect to the plane which contains the wire considered. Proper Matlab codes are compiled to map 3D field structure pictures. It is found this structure maintains some peculiar “zones of equal forces” formed near to chain line.

   Prediction Of The Conducted Electromagnetic Interference From Dc-Dc Switched-Mode Power Converters
By K. S. Kostov, A. Niinikoski, J. Kyyrae, T. Suntio [View]
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Abstract: This paper presents theoretical estimation of the conducted electromagnetic interference (EMI) from a dc-dc switched-mode power converter, based on Fourier analysis. The theory is applied to a buck converter. The comparison between the theoretically estimated and measured EMI shows that the common-mode (CM) EMI was well predicted. Up to 10 MHz the measured differential-mode (DM) noise was much lower than the predicted one, which could be because of unknown DM noise source impedance. Further research is needed to find out whether a proper model of the noise source impedance can improve the accuracy of the DM EMI prediction.

   The Minimization Of Magnetic Stray Fields From Ui-Cores With Air Gaps
By Alexander Stadler, Manfred Albach, Simon Chromy [View]
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Abstract: In this paper the external magnetic stray field is investigated in UI-cores with air gaps. A method of summation is used which is based on an integral equation for the magnetization. Further the influence of various parameters such as winding position and air gap size on the radiated magnetic field is discussed and based on the results, basic rules are given that need to be followed when designing reduced stray field configurations.

EPE-PEMC 2004 - Topic 10-1: EMI & over-voltage protection
You are here: EPE Documents > 04 - EPE-PEMC Conference Proceedings > EPE-PEMC 2004 - Conference > EPE-PEMC 2004 - Topic 10: ELECTROMAGNETIC COMPATIBILITY > EPE-PEMC 2004 - Topic 10-1: EMI & over-voltage protection
	[return to parent folder]

	Analog Protection As A Way Of Voltage Source Conveter Reliability Increasing By Gurevich M. K., Shershnev Y. A.	[View] [Download]
Abstract: The typical disadvantage of voltage source converter (VSC) is its inclination to interphase short circuit mode. There are rather few protecting technologies existing for a converter and most of them are computer control technologies. Analog overcurrent protection circuit, its performance and device option are discussed at the paper.

	Designing Power Line Filters For Dc-Dc Converters By K. S. Kostov, V. Tuomainen, J. Kyyrae, T. Suntio	[View] [Download]
Abstract: A method for designing power line filters for SMPS is presented. The practical design work is optimized, by excluding the nonviable combinations of filter components. The designer can choose among the theoretically viable combinations, to try practical designs. The theoretical calculations are based on chain parameters. As an illustration of the method a single stage ð-filter for a buck converter is designed. The results prove the design procedure to be simple and straightforward.

	EMC and CE Mark Directive By Jonas Soederlund	[View] [Download]
Abstract: EMC and CE Mark Directive

	Magnetic Field Of Chain Line By Yuri A. Krasnitsky	[View] [Download]
Abstract: Magnetic field of a power line span is calculated in assumption that the wire configuration is described by the chain line, or catenary, equation. Computing procedure is worked out based on piecewise linearization of wire segments. The observation point may be moved along and/or transversal with respect to the plane which contains the wire considered. Proper Matlab codes are compiled to map 3D field structure pictures. It is found this structure maintains some peculiar “zones of equal forces” formed near to chain line.

	Prediction Of The Conducted Electromagnetic Interference From Dc-Dc Switched-Mode Power Converters By K. S. Kostov, A. Niinikoski, J. Kyyrae, T. Suntio	[View] [Download]
Abstract: This paper presents theoretical estimation of the conducted electromagnetic interference (EMI) from a dc-dc switched-mode power converter, based on Fourier analysis. The theory is applied to a buck converter. The comparison between the theoretically estimated and measured EMI shows that the common-mode (CM) EMI was well predicted. Up to 10 MHz the measured differential-mode (DM) noise was much lower than the predicted one, which could be because of unknown DM noise source impedance. Further research is needed to find out whether a proper model of the noise source impedance can improve the accuracy of the DM EMI prediction.

	The Minimization Of Magnetic Stray Fields From Ui-Cores With Air Gaps By Alexander Stadler, Manfred Albach, Simon Chromy	[View] [Download]
Abstract: In this paper the external magnetic stray field is investigated in UI-cores with air gaps. A method of summation is used which is based on an integral equation for the magnetization. Further the influence of various parameters such as winding position and air gap size on the radiated magnetic field is discussed and based on the results, basic rules are given that need to be followed when designing reduced stray field configurations.