Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 Archives of Electrical Engineering

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

On-line losses minimization of induction motor vector control

Rouabah Z., Abdelhadi B., Anayi F., Zidani F.

Archives of Electrical Engineering

2011

Vol. 60, nr 3

257-268

Conventional field-orientated Induction motor drives operate at rated flux even at low load. To improve the efficiency of the existing motor it is important to regulate the flux of the motor in the desired operating range. In this paper a loss model controller (LMC) based on the real coded genetic algorithm is proposed, it has the straightforward goal of maximizing the efficiency for each given load torque. In order to give more accuracy to the motor model and the LMC a series model of the motor which consider the iron losses as a resistance connected in series with the mutual inductance is considered. Digital computer simulation demonstrates the effectiveness of the proposed algorithm and also simulation results have confirmed that this algorithm yields the optimal efficiency.

Fuzzy approach for induction motor fault diagnosis

Zidani F., Abdessemed R., Nait Said M., Benbouzid M.E.H.

Archives of Electrical Engineering

2002

Vol. 51, nr 2

137-146

This paper is concerned in the motor fault detection and diagnosis. Using fuzzy logic strategy, a better understanding of the heuristics underlying the motor fault detection/diagnosis process can be achieved. The proposed fuzzy approach is based on the stator currents Park's vector pattern. Stator currents in an induction motor were measured, recorded and employed for computation of the stator currents Park's vector pattern under different operating conditions. Simulated experimental results are presented in terms of motor fault detection accuracy and knowledge extraction feasibility. The results show the effectiveness of the proposed method.

Artykuł poświęcony jest problematyce diagnostyki uszkodzeń silników. Zastosowanie logiki zbiorów rozmytych prowadzi do lepszego zrozumienia praktycznych metod detekcji i diagnozowania uszkodzeń. Proponowane zastosowanie zbiorów rozmytych oparte jest o Parkowskie wykresy wektorowe prądów stojana. Dokonano pomiarów i rejestracji przebiegu tych prądów i przeanalizowano wykresy Parka w różnych stanach pracy silników. Badania symulacyjne prowadzono pod kątem skuteczności i dokładności proponowanej metody w detekcji i diagnostyce uszkodzeń. Rezultaty wskazują, że metoda jest efektywna.