Temat: DC motor - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Mathematical model of DC motor for analysis of commutation processes
Autorzy:: Głowacz, Z.
Głowacz, W.
Powiązania:: https://bibliotekanauki.pl/articles/262586.pdf
Data publikacji:: 2007
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: mathematical model
DC motor
commutation process
Opis:: The mathematical model of dc motor was created. In model the commutator is approximated by circuit with variable parameters. Extremely different values are assigned to circuit parameters depending on the angular position of the rotor. Model equations were solved using implicit integration method. Commutation processes of dc motor were investigated with the aid of this model. Presented model can be extended and to take into account another phenomena occurring in dc motor.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2007, 13, 2; 65-68
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Diagnostics of commutator DC motor basing on spectral analysis of signals
Autorzy:: Głowacz, Z.
Zdrojewski, A.
Powiązania:: https://bibliotekanauki.pl/articles/262623.pdf
Data publikacji:: 2008
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: commutator dc motor
rotor asymmetries
spectral analysis
Opis:: Measurement investigations have been carried out for commutator dc motor with internal asymmetries. Construction of considered motor enables to realize the breaking of one rotor coil and shorting of two groups of rotor coils. Each group contains three rotor coils. The basis of study were signals: current and voltage of field winding, current and voltage of armature winding and velocity of the rotor. The presented in this paper results of spectral analysis of signals create new possibilities for diagnostics of commutator dc motor.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2008, 14, 1; 85-88
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Single sensor based photovoltaic maximum power point tracking technique for solar water pumping system
Autorzy:: Daoud, A.
Midoun, A.
Powiązania:: https://bibliotekanauki.pl/articles/262763.pdf
Data publikacji:: 2008
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: MPPT
boost converter
rmicrocontroller
DC motor-pump
flow rate
Opis:: The development of photovoltaic (PV) panels has made solar-powered pumps a reality. The pump drivers are usually direct-current (DC) motors which are fed by power electronic converters with maximum power point tracking (MPPT) to extract the whole energy that the PV panels can generate depending on the environmental conditions including irradiation and temperature. The implementation of MPPT algorithm essentially involves sensing both an input current and an input voltage. Understandably, such realization is expensive. In this paper, a solar PV water pumping system based on DC to DC converter as MPPT module is considered. The system consists of a PV array, a DC to DC boost converter and the DC motor coupled to a centrifugal pump. A proposed method is employed to seek the maximum power point using the flow rate obtained from a single sensor. A comparison with conventional hill climbing technique is included in experimental results to prove feasibility of the proposed method.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2008, 14, 2; 69-72
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

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