Flux-Weakening Strategies for a Five-Phase PM Synchronous Machine
TypeCommunications avec actes
In order to get a low cost mild hybrid system, a global objective is to keep the actual thermal engine architecture. As consequence, the current clawpole synchronous automotive generator must be replaced by a new more powerful electrical machine but with the same large speed range [0 -18000 rpm]. In the project, a power of 15 kW and a DC bus voltage of 60V have been chosen to provide a regenerative breaking at minimum cost. With this payload (250A for the DC bus current), a five-phase machine appears to be interesting because MOSFET transistors of the voltage source inverter (VSI) have not to be used in parallel configuration (only two rated 150A transistors per leg for the VSI). As the speed range is large, a flux weakening must be applied. As the five-phase drives have more degrees of freedom than three-phase ones, different flux weakening strategies can be considered. The aim of this paper is to compare one of them.
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LU, Li; ASLAN, Bassel; KOBYLANSKI, Luc; SANDULESCU, Paul; MEINGUET, Fabien; KESTELYN, Xavier; SEMAIL, Eric (IEEE - Institute of Electrical and Electronics Engineers, 2012)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 ...
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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SEMAIL, Eric; KESTELYN, Xavier (ISTE Ltd and John Wiley & Sons Inc, 2012)This chapter is devoted to the modeling and control of electrical machines having at least two independent statoric currents. The star-coupled three-phase machine without a neutral terminal or the triangle-coupled three-phase ...