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Longitudinal and Transverse ¹H Nuclear Magnetic Resonance Relaxivities of Lanthanide Ions in Aqueous Solution up to 1.4 GHz/33 T. [PDF]

Molecules
Nasser Din R, Venu AC, Rudszuck T, Vallet A, Favier A, Powell AK, Guthausen G, Ibrahim M, Krämer S.   +8 more
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Active filters for static power convertors

IEE Proceedings B: Electric Power Applications, 1983
The need for output filters with static power convertors is well known. The paper presents a different way of solving the problem. A new configuration is therefore proposed, which includes both active and passive components. The advantages of this system are, among others, that it can be used for both AC and DC convertors, especially where very low ...
F Aldana
exaly   +2 more sources

Analysis and synthesis of static power convertors

IEE Proceedings, Part G: Electronic Circuits and Systems, 1986
The paper presents the systematic analysis and synthesis of ideal static convertors with any number of input and output phases. Methods of control of dependent quantities are presented and analysed for DC to DC, DC to AC, AC to DC and AC to AC convertors.
D. Levy, E. McQuade
exaly   +2 more sources

Application of power transistors to polyphase regenerative power convertors

Proceedings of the Institution of Electrical Engineers, 1978
An important mode of operation of a general power amplifier using power transistors is described, whose output is a variable-frequency 3-phase current. The convertor operates from a fixed 3-phase source without a d.c. link, utilises only 18 power transistors and provides a regenerative output.
A R Daniels
exaly   +2 more sources

Studying reliability: Cryocoolers and power convertors

AIP Conference Proceedings, 2002
The dynamic machines discussed in this paper are cryocooler and power convertors using various thermodynamic cycles and moving parts. Analyzing dynamic machine reliability has been difficult from the beginning. Classic reliability analyses rely on statistical sampling and comparing failure modes to other similar systems where statistical results are ...
exaly   +2 more sources

Peak power tracking in parallel connected convertors

IEE Proceedings, Part G: Circuits, Devices and Systems, 1993
A control scheme for parallel connected convertor systems, which will transfer the maximum available power from a nonideal voltage source, is presented. Monitoring the rates of change in both the average input current and average input power from the source, the proposed control method can dynamically regulate the DC-DC convertor system to track the ...
K Siri, C Q Lee
exaly   +2 more sources

Comprehensive Evaluation on Power Quality of Tidal Current Convertors

Marine Technology Society Journal, 2019
AbstractWith the continuous development of testing and evaluation of tidal current convertors, power quality assessment is becoming more and more critical. According to the characteristics of Chinese tidal current power generation and power quality standards, this paper proposes a comprehensive evaluation method of power quality based on K-means ...
Caixia Xue, Xiang-nan Wang, Ning Jia, Yuan-fei Zhang, Hai-nan Xia   +4 more
exaly   +2 more sources

Zero-current detection in power convertors

Proceedings of the Institution of Electrical Engineers, 1976
A R Daniels
exaly   +2 more sources

Auxiliary power convertors for locomotives

1980 IEEE Power Electronics Specialists Conference, 1980
The use of squirrel cage motor for auxiliary loads in railroad applications makes it necessary to have a conversion system aboard the locomotive or the train. This system has to convert a 1-phase ac or a dc voltage into a 3-phase 50 or 60 Hz voltage. This paper presents solutions built on power electronics.
Kjell Frank, Kjell Rehnman
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Commutation phenomena in a static power convertor

Proceedings of the Institution of Electrical Engineers, 1964
A systematic experimental and theoretical study was made of the effect of various inherent and extraneous circuit parameters on the commutation oscillations and on the period of commutation overlap in a static power convertor. The initiation of oscillations by a voltage jump occurring across a convertor device at the start and at the end of commutation
R. Feinberg, W.Y. Chen
openaire   +1 more source