| Title |
Direct Thrust Control of Permanent Magnet Type Linear Synchronous Motor by using Digital Signal Processor |
| Authors |
우경일(U, Gyeong-Il) ; 김덕진(Kim, Deok-Jin) ; 권병일(Gwon, Byeong-Il) |
| Keywords |
Cubic spline ; detent force ; digital signal processor ; direct thrust control ; permanent magnet linear synchronous motor ; thrust correction coefficient |
| Abstract |
This paper presents a direct thrust control scheme for permanent magnet linear synchronous motor(PMLSM) by using digital signal processor(DSP). And a simulation method for the direct thrust control of a permanent magnet linear synchronous motor using the equivalent circuit is presented. The detent force that was obtained by cubic spline method is considered in the simulation. Thrust correction coefficient is utilized to estimate actual thrust on the direct thrust control, which considers the longitudinal end effect due to the finite core length of the permanent magnet linear synchronous motor. The motor self inductance, the initial flux linkage by the permanent magnet is calculated in advance by the finite element analysis, and then the direct control simulation is carried out. As the results, thrust, current and speed are shwon. |