This paper presents an active solution for the elimination of the leakage current, in a three-phase PWM inverter drive. With respect to a traditional three-phase bridge, the proposed solution reduces the common-mode voltage variations, both in amplitude and frequency. A novel architecture for the inverter is presented. Between the DC source and the traditional three-phase bridge, two active DC-decoupling devices and a voltage-clamping network have been added. A dedicated control strategy was developed adopting a modified Space Vector PWM modulation, oriented to the reduction of the common-mode voltage variations in the proposed topology. Simulations showing the good performance of the solution are presented. A preliminary prototype was developed and experimental results are presented.

A novel three-phase inverter for common-mode voltage reduction in electric drives / Concari, Luca; Barater, Davide; Concar, Carlo; Buticchi, Giampaolo. - (2015), pp. 2980-2987. ((Intervento presentato al convegno 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 tenutosi a Palais des Congres de Montreal (Montreal Convention Centre), can nel 2015 [10.1109/ECCE.2015.7310077].

A novel three-phase inverter for common-mode voltage reduction in electric drives

Barater, Davide;
2015

Abstract

This paper presents an active solution for the elimination of the leakage current, in a three-phase PWM inverter drive. With respect to a traditional three-phase bridge, the proposed solution reduces the common-mode voltage variations, both in amplitude and frequency. A novel architecture for the inverter is presented. Between the DC source and the traditional three-phase bridge, two active DC-decoupling devices and a voltage-clamping network have been added. A dedicated control strategy was developed adopting a modified Space Vector PWM modulation, oriented to the reduction of the common-mode voltage variations in the proposed topology. Simulations showing the good performance of the solution are presented. A preliminary prototype was developed and experimental results are presented.
7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
Palais des Congres de Montreal (Montreal Convention Centre), can
2015
2980
2987
Concari, Luca; Barater, Davide; Concar, Carlo; Buticchi, Giampaolo
A novel three-phase inverter for common-mode voltage reduction in electric drives / Concari, Luca; Barater, Davide; Concar, Carlo; Buticchi, Giampaolo. - (2015), pp. 2980-2987. ((Intervento presentato al convegno 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 tenutosi a Palais des Congres de Montreal (Montreal Convention Centre), can nel 2015 [10.1109/ECCE.2015.7310077].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/1170938
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