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Communication Dans Un Congrès Année : 2019

Voltage boost by neutral point supply of AC machine

Résumé

A new concept of AC motor drive is proposed in this paper. It allows to boost voltage of an AC machine without supplementary components. The main idea is to wisely connect the neutral point of the AC machine to the DC power supply. With some modifications on the control algorithm, the proposed solution allows to supply the AC machine with a higher voltage than with classical inverters. The concept is general for different AC machines and different topologies of inverters. The case study of an induction motor driven by a three-phase two-level inverter is illustrated. In steady state, a factor gain up of 1.7 of maximum RMS voltage can be obtained with the proposed solution compared to a classical scheme. Experimental validation on an induction motor test bench shows the effectiveness of the proposed concept.
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Dates et versions

hal-03181425 , version 1 (25-03-2021)

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Jean-Yves Gauthier, Xuefang Lin-Shi. Voltage boost by neutral point supply of AC machine. ELECTRIMACS, May 2019, Salerno, Italy. ⟨10.1007/978-3-030-37161-6⟩. ⟨hal-03181425⟩
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