Computation of Optimal Current References for Flux-weakening of Multi-Phase Synchronous Machines
TypeCommunications avec actes
Multi-phase synchronous machines are more and more used in specific applications where high power density, low bus voltage, wide speed range and fault-tolerant capabilities are required. Due to the high number of degrees of freedom, multi-phase machines are difficult to optimally operate in flux-weakening zones. This paper proposes a technique to numerically compute optimal current references that can be used for feed-forward flux-weakening techniques in order to exploit the maximum machine performances for given DC bus voltage and current limits. The proposed technique is applied to a five-phase permanent magnet synchronous machine specifically developed for an automotive application.
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MEINGUET, Fabien; SANDULESCU, Paul; ASLAN, Bassel; LU, Li; NGUYEN, Ngac Ky; KESTELYN, Xavier; SEMAIL, Eric (IEEE - Institute of Electrical and Electronics Engineers, 2012)A method for fault detection and isolation is proposed and applied to inverter faults in multi-phase drives. An analysis of simulations in faulty conditions leads to the derivation of suitable fault indices. These are based ...
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MEINGUET, Fabien; NGUYEN, Ngac Ky; SANDULESCU, Paul; KESTELYN, Xavier; SEMAIL, Eric (IEEE, 2013)Multi-phase machines are known for their fault-tolerant capability. However, star-connected machines have no fault tolerance to inverter switch short-circuit fault. This paper investigates the fault-tolerant operation of ...
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