Open-Circuit Fault Control Techniques for Bearingless Multisector Permanent Magnet Synchronous Machines
| Autor: | Andrea Formentini, Chris Gerada, Giorgio Valente, Zhuang Wen, Luca Papini, Pericle Zanchetta |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Single-phase open circuit fault
Bearingless machines Computer science Stator Circuit faults Fault tolerance Fault tolerant systems Force Multiphase machines Permanent magnet synchronous machines Stator windings Three-phase open circuit fault Torque Windings multiphase machines three-phase open-circuit fault Topology (electrical circuits) 02 engineering and technology Fault (power engineering) permanent magnet synchronous machines Industrial and Manufacturing Engineering Suspension (motorcycle) law.invention Control theory law 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering 020208 electrical & electronic engineering single-phase open-circuit fault Power (physics) Control and Systems Engineering Electromagnetic coil Magnet |
| Popis: | This article presents three-phase and single-phase open-circuit fault-tolerant control strategies of radial suspension force and torque generation for bearingless multisector surface mounted permanent magnet synchronous machines. A combined winding topology is installed in the stator so that each phase contributes to both suspension force and motoring torque production. Indeed, a triple sectored three-phase winding is employed. Each three-phase winding is supplied by a power converter to independently control the suspension force vector and torque over each sector. An analytical formulation of the force and torque generation is described considering both three-phase open-circuit and single-phase open-circuit fault conditions. The analytical models of the machine are presented in a generalized matrix form so that they can be applied to any machine with a multisector winding structure. The analytical models are then used to derive the control algorithms that allow us to control the bearingless machine when a whole three-phase winding or one phase of one or two sectors are open circuited. The theoretical analysis is verified with both finite elements analysis and experiment tests. This system shows a good open-circuit fault-tolerant capability. |
| Databáze: | OpenAIRE |
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