λ参数法在零序电阻消除铁磁谐振分析中的应用  

Application of λ Parameter Method in the Analysis of the Zero Sequence Resistance Eliminating Ferroresonance

作　　者：冯平[1,2] 王尔智[2] 王维俊[1] 

机构地区：[1]解放军后勤工程学院机械电气工程系,重庆401311 [2]沈阳工业大学电气工程学院,沈阳110178

出　　处：《东莞理工学院学报》2011年第1期55-62,共8页Journal of Dongguan University of Technology

基　　金：国家自然科学基金资助项目(50477050)

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。本文将这一方法应用在中性点接地电力系统铁磁谐振的分析中,通过引入一个参变量λ构造出多个新的矩阵为工具,得到了相应的消谐条件。本文的结果表明,消除谐振的条件可以用这些参数组成的矩阵的稳定性条件来决定,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有效性。Unique steady state elimination method is a new method for eliminating resonance in nonlinear system presented recently.Its basic idea is that if there is a normal（non-resonance）solution for the system,and the steady state of system is unique,the corresponding conditions are the conditions for eliminating resonance.In this paper,this new method is applied to the eliminating of Ferroresonance in neutral grounding power system by introducingλParameter to gain the conditions for eliminating this Ferroresonance.The conclusions of this article proves that the condition can be determined by matrix stability which is composed of these parameters and verified by numerical simulation so as to show the effectiveness of unique steady state elimination method.

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 

分 类 号：TM132[电气工程—电工理论与新技术]