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Holographic interferometry of non-sinusoidal vibrations
Opto-electronics, 1974In this paper, the techniques of extended pulse stroboscopic holography and holographic subtraction have been applied to the study of periodic, non-sinusoidal vibrations represented by a Jacobian elliptic function. Fringe irradiance distribution in reconstructed images has been evaluated for the two cases.
P. C. Gupta, K. Singh
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On the Definition of Reactive Power Under Non-Sinusoidal Conditions
IEEE Transactions on Power Apparatus and Systems, 1980A new method of defining reactive power under non- sinusoidal conditions is proposed. It consists of sub- dividing the current into components which would have the same waveform as the current in a resistance and either an inductance or a capacitance when the voltage is applied to them, and into a residual component.
Kusters, N. L., Moore, W. J.M.
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Induction Motor Operation With Non-Sinusoidal Impressed Voltages
Transactions of the American Institute of Electrical Engineers, 1929The usual procedure in considering the operation of induction motors has been to neglect the effect of harmonics. Although in most instances this gives results which are sufficiently accurate, the question of how much these effects are or how much is being neglected has yet to be answered in electrical engineering literature.
L. A. Doggett, E. R. Queer
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2004 IEEE Africon. 7th Africon Conference in Africa (IEEE Cat. No.04CH37590), 2005
Harmonic distortion on the power system is a modern concern due to the technological advances in silicon technology and it presents an increased non-linear loading of the power system. The effects of harmonics are well known: customers could experience major production losses due to the loss of supply, for example; on the other hand, harmonic load ...
S.L. Bezuidenhout, A.P.J. Rens
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Harmonic distortion on the power system is a modern concern due to the technological advances in silicon technology and it presents an increased non-linear loading of the power system. The effects of harmonics are well known: customers could experience major production losses due to the loss of supply, for example; on the other hand, harmonic load ...
S.L. Bezuidenhout, A.P.J. Rens
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Measurements for the characterization of passive components in non-sinusoidal conditions
IEEE Transactions on Instrumentation and Measurement, 2002The paper deals with the measurement of R, L, C parameters of passive component in non-sinusoidal conditions. An innovative virtual instrument, implementing a measurement method based on system identification techniques, was realized to be used for the characterization of passive components in arbitrary conditions.
L. FERRIGNO +2 more
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Factors Affecting Losses in Induction Motors with Non-Sinusoidal Supply
2007 IEEE Industry Applications Annual Meeting, 2007This paper presents the results of an investigation into the factors affecting losses in induction motors operating with non-sinusoidal supply. It is well known that the losses in machines increase when a non-sinusoidal supply is used. However, the specific causes of the increase in loss and resultant techniques required to mitigate these losses are ...
BOGLIETTI, Aldo +3 more
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Non-sinusoidal magnetisation and applications
2019The book chapter shows that it is rare for soft magnetic materials in a.c. applications to be subject to perfectly sinusoidal flux-density waveforms. The designers and users of electrical machines are placing increasing demands on the magnetic cores. Traditionally, the electrical steels used in these devices are characterised under standard conditions ...
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Derating of transformers under non-sinusoidal loads
2008 11th International Conference on Optimization of Electrical and Electronic Equipment, 2008Transformers are normally designed and built for utilizing at rated frequency and prefect sinusoidal loads. Supplying non-linear loads by transformer leads to higher losses, early fatigue of insulation, and reduction of the useful life of transformer. To prevent these problems rated capacity of transformer supplying non-linear loads must be reduced. In
S.B. Sadati +3 more
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An Optical Fibre Sensor for Non-sinusoidal Current
IETE Journal of Research, 1997Measurement of current and voltage in high voltage systems employing optical fibre sensors is becoming increasingly popular as the problem of insulation is practically eliminated. Vibrations, physical and acoustic, perturb the polarisation-preserving sensing fibre and cause added noise much in excess of the signal.
H O Modi, V Jagadeesh Kumar, P Sankaran
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Non-sinusoidal Orthogonal Functions in Systems and Control
2016This chapter discusses different types of non-sinusoidal orthogonal functions such as Haar functions, Walsh functions, block pulse functions, sample-and-hold functions, triangular functions, non-optimal block pulse functions and a few others. It also discusses briefly the application of Walsh, block pulse and triangular functions, three major members ...
Anish Deb +2 more
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