Naslov
Reduction of computational efforts in finite element based permanent magnet traction motor optimization

Autori
Žarko, Damir ; Stipetić, Stjepan ; Martinović, Marijan ; Kovačić, Marinko ; Jerčić, Tino ; Hanić, Zlatko

Izvornik
IEEE transactions on industrial electronics (0278-0046) 65 (2018), 2; 1799-1807

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
optimization ; constraints ; electric tram ; traction motor ; permanent magnet synchronous motor ; electromagnetic design ; differential evolution

Sažetak
This paper presents a method for reducing computational time in constrained single objective optimization problems related to permanent magnet motors modeled using computationally intensive finite element method. The method is based on Differential Evolution algorithm. The principal approach is to interrupt the evaluation of inequality constraints after encountering the constraint which is violated and continue their evaluation only if better solutions are obtained in comparison with the candidate vector from the previous generation both in terms of inequality constraints and the cost function. This approach avoids unnecessary time consuming finite element calculations required for solving the inequality constraints and saves the overall optimization time without affecting the convergence rate. The main features of this approach and how it complements the existing method for handling inequality constraints in Differential Evolution algorithm is demonstrated on design optimization of an interior permanent magnet motor for the low- floor tram TMK~2200. The motor geometry is optimized for maximum torque density.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA