- Tytuł:
- Minimization of power losses of a wound rotor synchronous motor for traction drives using lolimot approximation of the magnetizing characteristics
- Autorzy:
-
Barinberg, V.
Micek, P.
Shaaban, S. - Powiązania:
- https://bibliotekanauki.pl/articles/1197501.pdf
- Data publikacji:
- 2018
- Wydawca:
- Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
- Tematy:
-
power losses
WSM
PSM
mathematical model - Opis:
- Over the last years, there has been a rising interest in wound-rotor synchronous motors (WSM) for electric vehicle drive application. They provide analternative to permanent magnet motors (PSM) which are subject to shortage issues with the rare-earth material supply [5]. Although an analytical solution of the WSM minimum copper losses problem exists [1], the associated assumptions of unlimited voltage and constant motor inductances are mostly not applicable for electric vehicle applications. This paper proposes a simple method to improve the convergence of a numerical solution of the copper loss minimization problem subject to a nonlinear equality constraint (motor torque) and inequality constraints (available voltage and maximum current). A set / tree of weighted locally linearized (LoLiMoT) models replaces nonlinear lookup tables specifying the inductances Ld, Lq, Lf in terms of the currents Id, Iq and If. A benefit of this is that the analytical expressions for the Jacobian and the Hessian matrices of the objective function and the constraints functions are readily available to a gradient-based numericaloptimization function. The calculation results presented in the paper show a reduction of the necessary number of iteration steps. In addition, straightforward modification of the presented method allows optimization also under consideration of magnetic losses.
- Źródło:
-
Maszyny Elektryczne: zeszyty problemowe; 2018, 3, 119; 95-99
0239-3646
2084-5618 - Pojawia się w:
- Maszyny Elektryczne: zeszyty problemowe
- Dostawca treści:
- Biblioteka Nauki
Artykuł