| Abstrakt: |
This study deals with an analytic model for slotted solid‐rotor line‐start permanent‐magnet motors. The impact of non‐linearity of solid‐rotor impedance is taken into account in the proposed dynamic model by applying a numerical method. The rotor parameters are calculated as functions of rotor slip in the starting stage. Compared to the time‐step finite element method, the proposed method is faster because, the rotor parameters can directly be utilised in the circuit model to simulate the transient start‐up process of the line‐start solid‐rotor synchronous motors. Eventually, a four‐pole, 250 V, 1500 rpm, 1050 W, three‐phase synchronous motor with a slotted solid rotor is designed and prototyped to experimentally validate the capabilities of the proposed analytic model. [ABSTRACT FROM AUTHOR] |
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