Single current sensor technique in the DC link of three-phase PWM-VS inverters: A review and a novel solution

被引：183

作者：

Blaabjerg, F ^{[1
]}

Pedersen, JK ^{[1
]}

Jaeger, U ^{[1
]}

Thoegersen, P ^{[1
]}

机构：

[1] DANFOSS DRIVES AS, TRANSMISS DIV, DK-6300 GRASTEN, DENMARK

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 1997年 / 33卷 / 05期

关键词：

AC drives; current sampling; modulation; sensor reduction;

D O I：

10.1109/28.633802

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A review of the existing methods to determine the output currents in a pulsewidth modulation voltage-source (PWM-VS) inverter using a single current sensor in the dc link is presented, and a novel solution is proposed. The unique arrangement of the dc link allows full protection of the inverter from short circuits and overloads. Also, a new method of sampling the dc-link current is described that produces true values of the output currents at the centers of switching intervals. Results of investigation of an experimental setup have shown that full protection of the inverter has been accomplished and the output currents can accurately be determined within the whole operating area.

引用

页码：1241 / 1253

页数：13

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