Direct suspending power control method for permanent magnet type non-bearing motor

The invention discloses a direct suspension force control method for a permanent-magnet-type bearing-free motor, and the method belongs to a bearing-free motor control method. The method controls the crest value and the direction of the space vector of a suspension winding stator flux through proper...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WANG XIAOLIN, LI NAN, CHOU ZHIJIAN, DENG ZHIQUAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a direct suspension force control method for a permanent-magnet-type bearing-free motor, and the method belongs to a bearing-free motor control method. The method controls the crest value and the direction of the space vector of a suspension winding stator flux through properly selecting the switch state of an inverter while maintaining the invariableness of an air-gap-flux composed by motor winding, and the suspension is controlled by adopting a closed loop, thereby further decoupling the torque control winding and the suspension winding. The invention is a control method with high suspension control precision, fast dynamic response and small motor parameter influence.