摘要
唯一稳态消谐法是近年出现的消除非线性系统谐振新的分析方法。该方法的基本思想是如果非线性系统存在一个非谐振的正常解,并且该系统具有唯一的稳态,则此时对应的条件就是系统不发生谐振的条件。本文将这方法应用在消除中性点不接地电力系统的铁磁谐振中,以矩阵范数为工具,得到了相应的消谐条件。结果表明,消除谐振的条件可以用矩阵的范数条件来决定,并用数值模拟进行验证,表明结果正确,同时也说明唯一稳态消谐法的有效性。
Unique steady state elimination method has been a new method for eliminating resonance in non-linear system in recent years. The basic idea is that if there is a normal solution （non-resonance） for the system and the steady state of system is unique, the corresponding conditions are the conditions of eliminating resonance. In the paper, this new method is applied to analyze the eliminating of ferro-resonance in non-neutral grounding power system. Based upon matrix norms, the conditions for eliminating ferre-resonance are obtained and the method is used in ferro-resonance analysis of non-greunding neutral power system. The results show the conditions of eliminating ferre-resonance can be determined by the norm conditions of some constant matrixes and be verified by numerical simulation. And the conclusions are correct and the unique steady state elimination method is effective.
出处
《湖南电力》
2011年第1期1-4,24,共5页
Hunan Electric Power
基金
国家自然科学基金资助项目(50477050)
关键词
电力系统
铁磁谐振
中性点不接地系统
非线性系统
唯一稳态消谐法
power system
fen-o-resonance
non-greunding neutral system
non-linear system
unique steady state elimination method
