低励限制与失磁保护配合的分析  

Analysis on Coordination of Minimum Excitation Limit and Loss-of-field Protection

作　　者：郝雪平 

机构地区：[1]三河发电有限责任公司,河北三河065201

出　　处：《华北电力技术》2005年第7期15-17,共3页North China Electric Power

摘　　要：“发电厂并网运行安全性评价”要求验证低磁励限制与失磁保护的整定关系,在实际校核中,发现低磁励限制是在P-Q平面进行计算的,而阻抗型失磁保护是在R-X阻抗圆平面进行分析的。为此提出了将两者都归算到R-X阻抗圆平面上比较的方法。Security assessment of power plant resynchronization operation”requires to verify the setting relation between minimum excitation limit and loss-of-field protection.Through check,it is found that minimum excitation limit is calculated in P-Q plane,while impedance type loss-of-field protection is analyzed in R-X plane.For this reason,the paper put forward a comparable method that transforms all of them to R-X plane.

关 键 词：低磁励限制 失磁保护 P—Q平面 R—X阻抗圆平面 

分 类 号：TM588[电气工程—电器]