Abstract
In order to analyze the thrust force characters of permanent magnet linear synchronous motor (PMLSM) and to build global electromechanical model of motor drive system, bond graph model of PMLSM was proposed, in which the end effect character of linear motor was included. Referring to the method used in the analysis of rotating motor, model of PMLSM under d-q reference frame was built. Besides, magnet distortion caused by end effect was described by magnetic field generated by mutual inductance and current. According to them, equivalent circuit of PMLSM was got then transformed to bond graph model through bond graph theory and state space equation of system was established. Simulation and experiment with a homemade motor are conducted, results validate the correctness of the model and show velocity oscillation caused by end effect, in which the value of oscillation cycle is equal to polar distance.
| Original language | English |
|---|---|
| Pages (from-to) | 71-75+83 |
| Journal | Dianji yu Kongzhi Xuebao/Electric Machines and Control |
| Volume | 15 |
| Issue number | 2 |
| State | Published - Feb 2011 |
Keywords
- Bond graph
- D-q model
- End effect
- Field-oriented control
- Permanent magnet linear synchronous motor
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