UNITROL6800型励磁调节器低励限制整定方法探讨

Discussion on Setting Method of Under Excitation Limit of UNITROL68000 Excitation Regulator

某电厂进相试验时,出现低励限制提前整定值动作的情况,影响发电机组进相能力的发挥。文章通过分析UNITROL6800型励磁调节器低励限制控制原理、动作特性,探讨了UNITROL6800型励磁调节器低励限制的整定原则,提出了考虑动作特性的优化整定方法,解决了发电机组进相能力不能充分发挥的问题,可为使用同类型励磁调节器的电厂整定低励限制定值提供参考。

During the leading phase operation test of a power plant,there is an action for the value of under excitation limit is set in advance,which affects the leading phase capability of the generator set.Based on the analysis of the control principle and action characteristics of the under excitation limit of the UNITROL6800 excitation regulator,this paper discusses the setting principle of the under excitation limit of the UNITROL6800 excitation regulator,and puts forward the optimal setting method considering action characteristics,which solve the problem that the leading phase capability of generator set can not be brought full play,and can provide a reference for setting the value of under excitation limit in power plants using the same type of excitation regulator.