Three-phase active harmonic rectifier (AHR) to improve utility input current THD in telecommunication power distribution system

被引：23

作者：

Kim, S ^{[1
]}

Todorovic, MH ^{[1
]}

Enjeti, PN ^{[1
]}

机构：

[1] Texas A&M Univ, Power Elect & Power Qual Lab, Dept Elect Engn, College Stn, TX 77843 USA

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2003年 / 39卷 / 05期

关键词：

active harmonic rectifier (AHR); active power filter (APF); telecom rectifier; total harmonic distortion (THD);

D O I：

10.1109/TIA.2003.816530

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Modern telecommunication power supply systems have several parallel-connected switch-mode rectifiers to provide -48 Vdc. A typical switch-mode rectifier configuration includes a three-phase diode rectifier followed by a dc-dc converter. Such a system draws significant harmonic currents for the utility, resulting in poor input power factor and high total harmonic distortion. In this paper, a three-phase active harmonic rectifier (AHR) scheme is proposed. In the AHR scheme, a diode rectifier module is replaced by a six-insulated-gate-bipolar-transistor pulsewidth-modulation rectifier to supply load harmonics as well as its own active power. Each dc-dc converter module is connected to a shared 48-V dc link. The AHR module together with parallel-connected switch-mode rectifiers is controlled to achieve clean input power characteristics. The VA ratings of the AHR scheme is compared with an active power filter approach. The control design is based on the synchronous reference frame approach. Analysis, simulation, and experimental results show that the AHR offers several advantages such as lower VA rating, better current control response, efficient use of the AHR dc link, small size, and stable dc-link voltage control.

引用

页码：1414 / 1421

页数：8

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