发电机励磁系统保护配置及整定分析  

Protection Configuration and Setting Analysis of Generator Excitation System

作　　者：杨乾纯 Yang Qianchun(Thermal Power Division,SINOPEC Shanghai Petrochemical Company Limited,Shanghai 200540)

机构地区：[1]中国石化上海石油化工股份有限公司热电部

出　　处：《石油化工技术与经济》2019年第3期14-20,共7页Technology & Economics in Petrochemicals

摘　　要：励磁系统保护是发电机继电保护中重要的组成部分,同时也是继电保护和整定计算的难点之一。发电机励磁系统保护的合理整定、配合是整个机组、发电厂以及电网安全稳定运行的重要保障。通过对某炼化企业的发电机励磁系统继电保护进行配置和整定计算,分析并说明了发电机在失磁、低励磁和过励磁状态下继电保护和自动励磁调节装置的整定方法以及相互之间的配合关系,对其他炼化企业相同等级发电机组的整定计算具有参考意义。Excitation system protection is an important part of generator relay protection,and also one of the key difficulties in relay protection setting calculation.Reasonable setting and coordination of generator excitation system protection is an important guarantee for the safe and stable operation of the entire unit,power plant and power grid.Through the configuration and setting calculation of the relay protection of the generator excitation system of a refinery enterprise,the method of setting the relay protection and the automatic excitation adjustment device under the conditions of demagnetization,low excitation and overexcitation,and mutual tuning method are analyzed and explained.The cooperation relationship between the other groups has reference significance for the calculation of the same level of generator sets in other refineries.

关 键 词：发电机 失磁保护 低励限制 过励磁保护 整定配置 

分 类 号：TM307[电气工程—电机]