Ground Current Control Scheme for Back-To-Back Three-Phase T-Type Rectifier and Inverter Systems

被引：5

作者：

Boillat, D. O. ^{[1
]}

Krismer, F. ^{[2
]}

Kolar, J. W. ^{[2
]}

机构：

[1] ABB Schweiz AG, Austr, CH-5300 Turgi, Switzerland

[2] Swiss Fed Inst Technol, Power Elect Syst Lab, Physikstr 3, CH-8092 Zurich, Switzerland

来源：

IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING | 2018年 / 13卷 / 11期

关键词：

three phase; EMI filter; ground current; common-mode equivalent circuit; system transfer function; control; POWER CONVERTERS; GRID SIMULATOR;

D O I：

10.1002/tee.22782

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a method to control the ground current in a back-to-back connection of three-phase T-type rectifier and inverter stages if operated from a three-phase mains with a grounded neutral point and a star-connected three-phase load with grounded star point. The proposed control scheme requires a ground current sensor and a single control loop, achieves a closed-loop control system bandwidth of 1.7 kHz, and does not interact with the existing input phase current control system that is used to achieve sinusoidal mains currents. According to the presented experimental results, an effective reduction of the rms ground current from more than 200 mA (without controller) to less than 3 mA (with the proposed control scheme) is realized. (C) 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

引用

页码：1649 / 1653

页数：5

共 13 条

[1]

Boillat D. O., 2016, THESIS

[2] Low-Frequency Common-Mode Voltage Control for Systems Interconnected With Power Converters [J].