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A Simple Current Ripple Reduction Method for B4 Inverters
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 Title & Authors
A Simple Current Ripple Reduction Method for B4 Inverters
Lee, Dong-Myung; Park, Jae-Bum; Toliyat, Hamid A.;
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 Abstract
This paper proposes a simple current compensation method to improve the control performance of B4 inverters. Four-switch inverters so called B4 inverters employ only four switches. They have a split dc-link and one phase of three-phase motors is connected to the center-tap of split dc-link capacitors in B4 inverters. The voltage ripples in the center tap of the dc-link generate unbalanced three-phase voltages causing current ripples. To solve this problem, this paper presents a simple compensation method that adjusts switching times considering dc-link voltage ripples. The validity of the proposed method is verified by simulations and experiments carried out with a 1 HP induction machine.
 Keywords
B4 inverters;Current ripple reduction;Split dc-link;
 Language
English
 Cited by
1.
Predictive Torque Control Scheme for Three-Phase Four-Switch Inverter-Fed Induction Motor Drives With DC-Link Voltages Offset Suppression, IEEE Transactions on Power Electronics, 2015, 30, 6, 3309  crossref(new windwow)
2.
Analytic Model of Four-switch Inverter-fed Driving System for Wye or Delta-connected Motor with Current Ripple Reduction Scheme, Journal of Electrical Engineering and Technology, 2016, 11, 1, 109  crossref(new windwow)
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