What is it about?
An electrIfyIng strategy of PMSM Is proposed accordIng to the structure of PMSM wIth 3 layers of stator coIls. A statIc torque model of PMSM Is buIlt In thIs paper. In order to classIfy the statuses of rotor posItIon, spherIcal plannIng on stator spherIcal surface Is made and 4 classes of 72 sub-regIons are dIVIded accordIng to the dIstrIbutIon of stator coIls. Then stator coIls In each sub-regIon are marked wIth numbers and electrIfyIng rules of stator coIls In dIfferent statuses are desIgned. Of all the 54 stator coIls, 18 are sImultaneously electrIfIed under each status, wIth electrIfIed coIls unIformly dIstrIbuted. The concept OpposIte Corner CoIls of SpherIcal Surface (OCCSS) Is proposed. AccordIng to the control torque of PMSM, statIc torque model and the characterIstIcs of OCCSS, the currents flowIng though the electrIfIed 18 stator coIls are calculated. NumerIcal sImulatIons of contInuous path motIon and poInt-to-poInt motIon of rotor verIfIed the ratIonalIty of the proposed electrIfyIng strategy. A hypothetIcal ImplementatIon scheme of the system on whIch the electrIfyIng strategy can be actualIzed Is proposed.
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Why is it important?
I proposed a special design method for a sperical-spaced-stator of a spherical actuator, so that the actuator can be controlled well in low-speed condition, which can provided important reference to motion control study of spherical actuators.
Perspectives
The method proposed in this article was inspired by geogrophical knowledge, for example, longitude, latitude, equator, etc.. Spherical spaced stators drive the spherical rotor, and the relative coordinate system is applied in the algorithm. Sometimes, seperated-stators is suitable for sperical motor with the most important applications of spacial location, and the method proposed is innovative and can be applied.
guo chen
Read the Original
This page is a summary of: A Spherical Planning Based Electrifying Strategy of Permanent Magnet Spherical Motor, Applied Mechanics and Materials, March 2015, Trans Tech Publications,
DOI: 10.4028/www.scientific.net/amm.741.629.
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