摘要
提出了一种新消除谐振的方法:唯一稳态消谐法.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.这一方法应用在消除中性点接地电力系统的铁磁谐振的分析中,以矩阵理论为工具,得到了相应的消谐条件.结论表明,消除谐振的条件可以用一个常数矩阵的HURWITZ条件来决定,数值模拟验证结果正确,唯一稳态消谐法具有有效性.
A new method for eliminating resonance in nonlinear system,unique steady state elimination method is presented.Its basic idea was that if there is a normal（non-resonance） solution for the system,and the steady state of system was unique,then the corresponding conditions were the conditions for eliminating esonance.This new method is applied to analyze the eliminating of ferroresonance in neutral grounding power system.Based upon metrix theory,the conditions for eliminating this ferroresonance are obtained,which can be determined by the Hurwitz conditions of some constant matrixes.The conclusions of this article are proven correct by numerical simulation,and it shows the effectiveness of unique steady state elimination method.
出处
《湖南文理学院学报（自然科学版）》
CAS
2010年第4期45-48,共4页
Journal of Hunan University of Arts and Science(Science and Technology)
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
中性点接地系统
非线性系统
唯一稳态消谐法
power system
ferroresonance
neutral grounding power system
nonlinear system
unique steady state elimination method
