| Title |
Control Method for Minimizing Thrust Ripple of PM Excited Transverse Flux Linear Motor |
| Authors |
안종보 ; 강도현 ; 김지원 ; 정수진 ; 임태윤 ; 박준호 |
| Keywords |
Permanent magnet-excited transverse flux linear motor ; Speed control ; Thrust ripple ; Genetic algorithm ; Optimization technique ; Thrust |
| Abstract |
Permanent magnet-excited transverse flux linear motor(TFLM) is known to have more excellent ratio of force to weight than any other linear motors. But, thrust generated by phase current is non-linear with regard to current and relative position like switched reluctance motor. This makes current and speed controller design difficult. This paper presents a method on minimization of thrust ripple of permanent magnet-excited transverse flux linear motor. Using genetic algorithm(GA), optimal current waveform can be found under the constraint conditions such as current limit, minimum of ohmic loss and limited rate of change of current etc. The effectiveness is verified through computer simulation and experimental test results. |