Temat: current shunt - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Model predictive control of four-leg three-level flying capacitor converter: influence of model parameter mismatch
Autorzy:: Antoniewicz, K.
Rafał, K.
Jasiński, M.
Powiązania:: https://bibliotekanauki.pl/articles/1193479.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: multilevel converter
current control
model predictive control
MPC
shunt active power filter
SAPF
Opis:: This paper presents a control method for a four-leg three-level flying capacitor converter (FCC) operating as a shunt active power filter (SAPF), based on model predictive control with finite number of control states (FS-MPC). Current control and capacitor voltage balancing are described. Influence of the mismatch of the inductive filter model parameters on the current control precision is analysed. Results are supported by the experimental waveforms obtained with a 10kVA set-up.
Źródło:: Power Electronics and Drives; 2018, 3, 38; 1-9
2451-0262
2543-4292
Pojawia się w:: Power Electronics and Drives
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Precision Calculations of the Characteristic Impedance of Complex Coaxial Waveguides Used in Wideband Thermal Converters of AC Voltage and Current
Autorzy:: Kubiczek, Krzysztof
Kampik, Marian
Powiązania:: https://bibliotekanauki.pl/articles/2124756.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: AC voltage standard
current shunt
characteristic impedance
multilayer cylindrical conductor
FEM simulation
modified Bessel functions
numerical stability
calorimetric thermal voltage converter
ac-dc transfer difference
Opis:: The article presents precision and numerically stable method of calculation of the characteristic impedance of cylindrical multilayer waveguides used in high-precision wideband measuring instruments and standards, especially calculable thermal converters of AC voltage and precision wideband current shunts. Most of currently existing algorithms of characteristic impedance calculation of such waveguides are based upon approximations. Unfortunately, application of such methods is limited to waveguides composed of a specific, usually low number of layers. The accuracy of approximation methods as well as the number of layers is sometimes not sufficient, especially when the coaxial waveguide is a part of precision measurement equipment. The article presents the numerically stable matrix analytical formula using exponentially scaled modified Bessel functions to compute characteristic impedance and its components of the cylindrical coaxial multilayer waveguides. Results obtained with the developed method were compared with results of simulations made using the Finite Element Method (FEM) software simulations. Very good agreement between results of those two methods were achieved.
Źródło:: International Journal of Electronics and Telecommunications; 2022, 68, 3; 527--533
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: A fuzzy logic approach to shunt active power filter and hybrid active power filter
Autorzy:: Sahoo, Nirjharini
Panda, Gayadhar
Subudhi, B. D.
Powiązania:: https://bibliotekanauki.pl/articles/41189662.pdf
Data publikacji:: 2023
Wydawca:: Politechnika Warszawska, Instytut Techniki Cieplnej
Tematy:: Index terms
shunt active power filter
hybrid active power filter
hysteresis current controller
total harmonic distortion (THD)
indirect current controller
filtr mocy czynnej
filtr hybrydowy
zniekształcenie harmoniczne
regulator prądu
Opis:: This paper describes a Fuzzy Logic approach to Shunt Active power filter (SAPF) versus Hybrid Active Power Filter (HAPF) using Simulink. Here hysteresis controlled PWM method is applied to the SAPF and HAPF as a current controller and Fuzzy logic controller as a inverter dc voltage controller. To reduce harmonics, Shunt Active Power Filters (SAPFs) are used with various control schemes, but Hybrid Active power filter is a power electronic device which has both the characteristics of passive power filters and active power filters, which helps in cancelation of the harmonics by producing compensating signal. The fuzzy-hysteresis controller is designed and its simulation results are presented for both the filter types, showing acceptable THD results for the word length used in the fixed-point computations involved in the switching sequence generation. The results of the above controller are compared with the Indirect current controller.
Źródło:: Journal of Power Technologies; 2023, 103, 4; 209-217
1425-1353
Pojawia się w:: Journal of Power Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Conductance-controlled global-compensation-type shunt active power filter
Autorzy:: Szromba, A.
Powiązania:: https://bibliotekanauki.pl/articles/140436.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: shunt active power filter
active current
indirect control method
instantaneous compensation
load equivalent conductance
energy flow control
Opis:: This paper presents a load equivalent conductance based control method for a shunt active power filter. The principle of energy balance in the circuit, which means between supplying source - active filter - load, is used to obtain the control formula. The natural inertia of the active filter action is exploited, so no PI regulators are needed. The active filter can compensate for non-active current and, additionally, can stabilise the supplying source active power. In a case of generating loads energy harvesting is possible. The presented method is useful as well for voltage-source as current-source inverter based active filters, and for DC system as well as for AC single- or three-phase one.
Źródło:: Archives of Electrical Engineering; 2015, 64, 2; 259-275
1427-4221
2300-2506
Pojawia się w:: Archives of Electrical Engineering
Dostawca treści:: Biblioteka Nauki

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