Temat: control quality - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Implementation of a digital signal processor-controlled shunt active filter
Autorzy:: Limongi, L. R.
Cavalcanti, M. C.
Neves, F.
Azevedo, G. M.
Powiązania:: https://bibliotekanauki.pl/articles/262731.pdf
Data publikacji:: 2006
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: active filters
current control
power quality
Opis:: This paper presents the implementation of an active filter configuration for harmonic compensation. The system can be controlled for current harmonics and reactive power compensations simultaneously by using a converter operating as active shunt filter. A synchronous reference frame based controller is compared to an instantaneous reactive power based controller. The synchronous reference frame method is chosen to control the converter due to the better performance when the supply voltage is distorted. A shunt active filter system has been designed and built to meet IEEE 519 recommended harmonic standards. Simulation demonstrates the good performance of the active filter configuration. Experimental results, corresponding to the operation of the digital signal processor-controlled shunt active filter are also presented.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2006, 12, 2; 5-14
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Utilization of a neutral wire filter inductor in a three-leg four-wire active power filter
Autorzy:: Pettersson, S.
Salo, M.
Tuusa, H.
Powiązania:: https://bibliotekanauki.pl/articles/262723.pdf
Data publikacji:: 2005
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: four-wire system
power quality
vector control
control delay compensation
performacnce
Opis:: Three-leg active power filter topology is the cost effective solution implementing a four-wire active power filter but it has some disadvantages compared to four-leg topology. The lack of a neutral wire filter inductor results in larger filter losses and therefore the efficiency of the topology is impaired. The neutral wire filter inductor is typically used with the four-leg four-wire active power filter topology and significantly reduces switching frequency current ripple. In this paper the suitability of a neutral wire filter inductor for the three-leg topology is studied. The performance of three-leg topology with a neutral wire filter inductor is studied through computer simulations and laboratory tests. The results indicate that the use of the neutral wire filter inductor clearly improves the performance of three-leg topology.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2005, 11, 2; 83-89
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Grid Voltages Sensorless Control of the PWM Rectifier with Active Filtering
Autorzy:: Wojciechowski, D.
Powiązania:: https://bibliotekanauki.pl/articles/262568.pdf
Data publikacji:: 2006
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: active filters
power quality
predictive control
estimation
techniques
Opis:: The paper presents structure and experimental results of the control system of the PWM rectifier with active filtering function. Proposed control system was designed for maximum filtering performance in steady state. This task is realized by predictive algorithms applied for both control as well as calculation of grid currents. Accuracy of these algorithms strongly depends on precise information about future samples of equivalent electromotive force of the grid, which is in general distorted and unbalanced. For this purpose, a novel estimator and predictor is proposed. The control of DC voltage is realized with application of variable gain PI controller. It ensures high dynamics in transient states and low gain for steady state oscillations of DC voltage. Proposed control system is AC voltages sensor less and has excellent active filtering performance, even at presence of grid voltage distortions.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2006, 12, 1; 35-43
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Experimental Investigations of the Upqc Arrangement
Autorzy:: Benysek, G.
Powiązania:: https://bibliotekanauki.pl/articles/262602.pdf
Data publikacji:: 2006
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: power quality
power flow control
harmonics compensation
reactive power compensation
Opis:: This paper presents the fundamental properties and dependences describing the UPQC (Unified Power Quality Conditioner) arrangements. The UPQC devices simultaneously permit to fulfill the following functions: voltage and current harmonics compensation, network voltage and load current symmetrization as well as network voltage stabilization and power flow control. The selected results of the experimental investigations conducted on the small power laboratory model have been described. Applied method for DC link capacity selection was talked over in details and confirmed with experimental results. Results of experimental investigations, including operation of the UPQC arrangement in case of thyristor rectifier load were also introduced.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2006, 12, 1; 27-34
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Unified power quality conditioner in a grid-connected photovoltaic system
Autorzy:: Cavalcanti, M. C.
Azevedo, G. M.
Amaral, B. A.
Neves, F. A.
Powiązania:: https://bibliotekanauki.pl/articles/262717.pdf
Data publikacji:: 2006
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: control systems
converters
energy conversion
photovoltaic power systems
power quality
solar energy
Opis:: This paper presents a system that provides photovoltaic generation as well as the functions of a unified power quality conditioner. The system can be controlled for current harmonics and reactive power compensation simultaneously by using a converter operating as active shunt filter. The other converter is used as active series filter and it compensates voltage harmonics or voltage sags and swells. Using only an inverter in photovoltaic energy conversion process, the system presents increased efficiency when compared to the conventional systems. The synchronous reference frame method is used to control the three-phase converters. Simulation results demonstrate the good performance of the proposed configuration. Experimental results corresponding to the operation of the series filter as voltage sag compensator are presented.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2006, 12, 2; 59-69
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

Artykuł

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