Exper Reliability analysis of AVR structure configuration for large capacity generator with brushless excitation

Huang Chao, T. Cheng, Zhou Shangjun
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Abstract

High reliability of Auto Voltage Regulator (AVR) is Required for large capacity generator. This paper introduces kinds of regulator with different redundant configuration, and presents the risk of AVR fully fault down if there is short circuit in one of the rectifier bridges. After calculating the Short-circuit current as well as analyzing the characteristic of bridge and fast fuse, the fault possibility of AVRs with different configuration are presented in this paper.
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大容量无刷励磁发电机AVR结构配置的可靠性分析
大容量发电机对自动调压器(AVR)的可靠性要求很高。本文介绍了各种不同冗余配置的稳压器,并分析了其中一个整流桥发生短路时AVR完全故障的风险。通过对avr短路电流的计算,分析了桥接器和快速熔断器的特点,给出了不同配置下avr的故障可能性。
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