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    Wyświetlanie 1-5 z 5
    Tytuł:
    Currents physical components (CPC) in circuits with nonsinusoidal voltages and currents. Part 1, Single-phase linear circuits
    Autorzy:
    Czarnecki, L. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/262747.pdf
    Data publikacji:
    2005
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    Tematy:
    nonsinusoidal voltages and currents
    harmonics
    power definitions
    power phenomena
    apparent
    reactive
    scattered
    unbalanced currents or powers
    Opis:
    The paper summarizes the present state of discussions on power phenomena, power definitions and compensation in single-phase linear circuits. The main concepts developed over several decades on how various non-active powers in circuits with nonsinusoidal voltages and currents should be defined and compensated are presented along with a detailed discussion of these concepts. The paper presents also the concept of the single-phase load current decomposition into Currents' Physical Components (CPC) and its application for power definitions and compensation in such circuits. The paper is not addressed to scientists and experts on powers, but rather to common electrical engineers that sometimes face power related problems in nonsinusoidal systems.
    Źródło:
    Electrical Power Quality and Utilisation. Journal; 2005, 11, 2; 3-14
    1896-4672
    Pojawia się w:
    Electrical Power Quality and Utilisation. Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Time-Domain CPC Decomposition: Answers to Comments on “Physical Interpretation of the Reactive Power in Terms of CPC Power Theory Revisited”
    Autorzy:
    Jeltsema, D.
    van der Woude, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/262614.pdf
    Data publikacji:
    2014
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    Tematy:
    power theory
    reactive power
    currents' physical components
    Opis:
    This note addresses some issues raised in [4] and refines some assertions made in our previous work on the time-domain Currents’ Physical Components (CPC) decomposition in [10].
    Źródło:
    Electrical Power Quality and Utilisation. Journal; 2014, 17, 1; 13-20
    1896-4672
    Pojawia się w:
    Electrical Power Quality and Utilisation. Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quasi-instantaneous generation of reference signals for hybrid compensator control
    Autorzy:
    Czarnecki, L. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/262594.pdf
    Data publikacji:
    2007
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    Tematy:
    compensator control
    CPC
    harmonic filters
    hybrid compensators
    power variation
    power theory
    non-periodic currents
    semi-periodic currents
    harmonics
    Opis:
    Power variation of a customer load can disturb other loads in distribution systems and compensators for such loads are sometimes needed. Voltages and currents in systems with such loads can be asymmetrical, nonperiodic, distorted and even unpredictable. Consequently, reference signals for the compensator control have to be generated in a situation where the power properties of the load are not well specified. Voltages and currents in systems with time-varying loads, although nonperiodic, can be treated as quantities with a disturbed periodicity. These are referred to as semi-periodic quantities. Under such an assumption, the Current Physical Components (CPC) power theory can by used for estimation of the power properties of such loads. In such a case, the CPC power theory provides fundamentals for a quasi-instantaneous generation of reference signals for the compensator control, based both on the frequency- and on the time-domain approach. The paper presents fundamentals of generation of reference signals for unbalanced loads with semi-periodic voltages and currents.
    Źródło:
    Electrical Power Quality and Utilisation. Journal; 2007, 13, 2; 3-8
    1896-4672
    Pojawia się w:
    Electrical Power Quality and Utilisation. Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Physical Interpretation of the Reactive Power in Terms of CPC Power Theory Revisited
    Autorzy:
    Jeltsema, D.
    van der Woude, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/262600.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    Tematy:
    power theory
    reactive power
    current’s physical
    components
    Opis:
    Recently the authors have developed a time-domain representation of the Currents’ Physical Components (CPC) power theory. Consequently, piece-wise continuous currents and voltages, such as square waves and sawtooth signals, can naturally be taken into account without approximating them by a finite number of harmonics. Based on the time-domain CPC approach, this paper refines and corrects some of the assertions made by Czarnecki in his paper ‘Physical Interpretation of the Reactive Power in Terms of CPC Power Theory’.
    Źródło:
    Electrical Power Quality and Utilisation. Journal; 2013, 16, 2; 1-6
    1896-4672
    Pojawia się w:
    Electrical Power Quality and Utilisation. Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Currents Physical Components (CPC) in Circuits with Nonsinusoidal Voltages and Currents. Part 2: Three-Phase Three-Wire Linear Circuits
    Autorzy:
    Czarnecki, L. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/262598.pdf
    Data publikacji:
    2006
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
    Tematy:
    power definition
    power phenomena
    apparent
    reactive
    scattered
    unbalanced currents or powers
    Opis:
    This paper summarizes the present state of discussions on power phenomena, power definitions and compensation in three-phase three-wire linear circuits with nonsinusoidal voltages and currents. In particular, definitions of the arithmetic and geometric apparent powers are discussed. It is shown that these two powers result in an erroneous value of power factor of unbalanced loads even if voltages and currents are sinusoidal. A reasoning that leads to a right selection of the apparent power definition is presented as well. The paper also presents the con-cept of the three-phase current decomposition into Currents' Physical Components (CPC) and its application for power definitions and compensation in three-phase circuits.
    Źródło:
    Electrical Power Quality and Utilisation. Journal; 2006, 12, 1; 3-13
    1896-4672
    Pojawia się w:
    Electrical Power Quality and Utilisation. Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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