Method and Algorithm of Fault Detecting in Circuits of the Thyristor Excitation System of Synchronous Machines

Popov, M.; Tarasevich, Mikhail D.; Bogdanov, Alexander V.; Bazlov, Dmitrii A.; Gushin, Mikhail V.

doi:10.1109/eiconrus49466.2020.9039413

Cited by 7 publications

(2 citation statements)

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“…The article uses a fundamentally new concept introduced -"generalized analytical signal of voltage (current) of a three-phase system". It is based on the well-known filter (figure 1) of symmetric components in relation to complex analytical signals of phase voltages or currents [1][2][3][4][5][6][7][13][14][15][16][17][18]: The filter circuit (figure 1) is connected to the corresponding phase terminals A, B, C of the voltage measuring transformers. Orthogonal additions of analytical phase signals are obtained at the output of the Hilbert filter with the impulse response h(t) = 1/(πt):…”

Section: Introductionmentioning

confidence: 99%

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A Method for Dynamically Identifying Equivalent Mathematical Model Parameters of Power Electronic System Based on Digital Filter

Peng¹,

Georgievitch

Li³

et al. 2022

J. Phys.: Conf. Ser.

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In practice, most mathematical calculations and analysis methods to study the transients of power electrical equipment are based on the use of its idealized mathematical description and, as a result, do not adequately reflect the real dynamic characteristics of the combined power systems. One of the reasons, the use of unreliable initial parameters of the mathematical model during numerical experiments. In this article, a method is developed, the synthesis of equivalent models of a given structure is carried out using methods of parametric identification of dynamic systems. Digital filters designed to increase the reliability of the measurement and information part of modern microprocessor systems are described. There is also an assessment of their speed and error in the numerical solution of the problem of restoring useful and primary electrical signals, as well as methodological and practical recommendations for choosing the sampling frequency of analog-digital transformations in time are given.

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Section: Introductionmentioning

confidence: 99%

“…In this case, the circuit is connected to the measuring terminals of the phase current transformers. The results of studies of this and similar current filters are described in detail in publications [1][2][3][4][5][6][7][8][9][10][11][12][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%