发电机进相试验失磁保护与低励限制配合关系的校核  

Check of Matching Relationship between Excitation Loss Protectionand Low Excitation Limit in Generator Leading-phase Test

作　　者：江建明 JIANG Jianming(China Engergy Science and Technology Research Institute Co.,Ltd.,Chengdu 610072,China)

机构地区：[1]国家能源集团科学技术研究院有限公司,成都610072

出　　处：《大电机技术》2022年第5期45-50,58,共7页Large Electric Machine and Hydraulic Turbine

摘　　要：通过发电机进相试验前多种负荷下低励限制估算,将发电机低励限制定值归算至阻抗平面并与失磁保护阻抗定值进行比较,提出了发电机进相试验低励限制试算校核方法,解决了发电机低励限制定值与失磁保护阻抗定值的配合关系问题,通过进相试验验证了发电机低励限制定值与失磁保护阻抗定值的配合关系的正确性,该方法也可指导发电机进相运行中的配合关系校核。Through the estimation of the low excitation limit under various loads before the generatorleading phase test,the low excitation limit setting value of the generator is reduced to the impedanceplane and compared with the impedance setting value of the loss of excitation protection.The checkmethod of low excitation limit for generator leading phase test is proposed,which solves the matchingproblem between the low excitation limit setting value and the impedance setting value of loss ofexcitation protection.The validity of the matching relation between the generator low excitation limitsetting and the loss of excitation protection impedance setting is verified by the leading phase test.

关 键 词：进相试验 进相运行 失磁保护 校核方法 低励限制试算法 

分 类 号：TM306[电气工程—电机]