励磁系统的过励限制和过励保护  

Over-excitation Limiter and Protection of the Excitation Systems

作　　者：竺士章[1] 陈新琪[1] 

机构地区：[1]浙江省电力试验研究院,浙江省杭州市310014

出　　处：《电力系统自动化》2010年第5期112-115,共4页Automation of Electric Power Systems

摘　　要：对采用发电机和励磁机磁场电流实现的励磁系统,分别对其顶值电流瞬时限制和过励反时限限制提出了函数特性、启动值、限制值、限制动态过程要求,以及参数整定要求,确定了与发电机相关保护、定子过电流限制、励磁变保护的配合关系。提出了对过励保护的技术要求。对励磁机磁场电流作为信号的过励限制的函数形式提出了建议。The requirements of functionality,startup value,limiting value,limiting course and setting for anti-time over-excitation limiter and ceiling current limiter of generator excitation systems are provided.The relationship between over-excitation limiter and generator protections,or limiter of stator current,or excitation transformer protections are confirmed.The technical requirements of over-excitation protection of generator excitation systems are also presented.Finally,recommendations for the functionality of over-excitation limiter using exciter field current as the input signal are also given.

关 键 词：励磁系统 过励限制 过励保护 特性 整定 

分 类 号：TM772[电气工程—电力系统及自动化]