双DC-DC变换器并联运行的故障检测与隔离

ISIE 2001. 2001 IEEE International Symposium on Industrial Electronics Proceedings (Cat. No.01TH8570) Pub Date : 2001-06-12 DOI:10.1109/ISIE.2001.931622

Min-Jae Jung, Sangeun Park, Sung-Up Oh, Hak-ju Lee, S. Seong

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引用次数: 8

摘要

功率变换器并联运行是大容量、容错供电系统的常用方法。变频器并联运行要求负载电流完全自动分担，反馈控制器简单，可靠性高，维护方便。在本文中，为了使两个相同的变换器平均分担负载电流，分别在两个变换器上进行负载电流误差反馈，这两个变换器具有单个电流互感器(CT)。它被称为零电流互感器(ZCT)方法。介绍了变频器故障时的故障检测方法。为了稳定地向负载供电，对故障变流器进行了检测和隔离。作者通过仿真和实验提出了解决方案。

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Fault detection and isolation of two DC-DC converters parallel operation with single CT

Power converter parallel operation is used for large capacity and fault tolerant power supply systems. The converter parallel operation requires completely automatic load current sharing, a simple feedback controller, high reliability and easy maintenance. In this paper, to share load current equally with two identical converters, load current error feedback is carried out at the two converters respectively, which have a single current transformer (CT). It is called the zero current transformer (ZCT) method. This paper presents fault detection when one converter is broken. To supply power to the load stably, the faulted converter is detected and isolated. The authors suggest a solution by simulation and experiment.

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ISIE 2001. 2001 IEEE International Symposium on Industrial Electronics Proceedings (Cat. No.01TH8570)

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