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Wyszukujesz frazę "processor" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Medium voltage electrical system research using DSP-based real-time simulator
Autorzy:
Fajfer, M.
Powiązania:
https://bibliotekanauki.pl/articles/97555.pdf
Data publikacji:
2014
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
simulator working in real-time
DSP processor
simulation of electrical system
Opis:
The paper presents the results of a simulation of operating conditions of a two-sectioned medium-voltage power line, with the use of a simulator based on a multi-core signal processor. It is a kind of type of a real-time digital simulator of electrical system. Steady states and transients were analyzed, as well as the switching operation of the load with zero initial conditions. The transient states of this electrical system was also analyzed during one and multi phase short-circuit. The oscillograms of steady and transient node system voltages and currents registered during simulator work were presented. The obtained results were compared to the ones received via Matlab simulation package. The estimated maximum errors of the simulator in steady and transition states were presented. The method of simulation, which is used in the implementation of discreet mathematical models of the complex electrical systems in real-time simulators, was applied. The main advantage of the simulator is the ability of its cooperation with real devices (e.g. regulators).
Źródło:
Computer Applications in Electrical Engineering; 2014, 12; 334-352
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On simplification of residue scaling process in pipelined Radix-4 MQRNS FFT processor
Autorzy:
Smyk, R.
Czyżak, M.
Powiązania:
https://bibliotekanauki.pl/articles/97551.pdf
Data publikacji:
2014
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
fast Fourier transform
residue number system
modified quadratic residue number system
pipelined FFT processor
Opis:
Residue scaling is needed in pipelined FFT radix-4 processors based on the Modified Quadratic Residue Number System (MQRNS) at the output of each butterfly. Such processor uses serial connection of radix-4 butterflies. Each butterfly comprises n subunits, one for each modulus of the RNS base and generates four complex residue numbers. In order to prevent arithmetic overflow intermediate results after each butterfly have to be scaled, i.e. divided by a certain constant. The number range of the processed signal increases due to transformation of coefficients of the FFT algorithm to integers and summation and multiplication within the butterfly. The direct approach would require eight residue scalers that would be highly ineffective regarding that such a set of scalers had to be placed after each butterfly. We show and analyze a structure which uses parallel-to-serial transformation of groups of numbers so that only two residue scalers are needed.
Źródło:
Computer Applications in Electrical Engineering; 2014, 12; 588-596
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The real-time simulation of an electric systems – the simulation stability
Autorzy:
Fajfer, M.
Powiązania:
https://bibliotekanauki.pl/articles/97232.pdf
Data publikacji:
2015
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
simulator working in real-time
DSP processor
multicore system
concurrent computing simulation of electrical system
Opis:
The paper presents the results of a research of the impact of numerical integration algorithm and the method of solving the system of linear equations for the stability of the simulation of electric circuit in steady states and transient states. Stability criteria was explained. Mathematical modeling algorithm of the electric power line (steady states and transient states) was presented with elements of concurrent computing. The goal is to create a mathematical model of the electric circuit that will meet the requirements of the models used in simulators working in real time.
Źródło:
Computer Applications in Electrical Engineering; 2015, 13; 65-76
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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