含铁磁元件的三相电力系统暂态过电压计算  

Transient Calculation of Over-voltage in Power System Containing Ferromagnetic Elements

作　　者：王佳[1] 

机构地区：[1]北京建筑工程学院,100044

出　　处：《电工技术杂志》2003年第6期71-73,共3页Electrotechnical Journal

基　　金：北京自然科学基金资助项目

摘　　要：介绍了一种简便易行的三相电力系统暂态计算的方法,用励磁特性曲线来替代磁滞回环,并加以连续光滑的数学描述,以取代传统的分段线性化模型。以此为依据,从励磁支路的求解出发,进而得到整个网络的全解,应用这种算法,其计算结果能够与内模实验较好地吻合。This paper presents an efficient method for transient calculation of power system. A new model is developed to represent the magnetzing characteristics, in which the magnetizing curve is described by a continuous and smooth manner. Moreover a calculation method is also proposed based on the model. In the proposed method, the magnetizing branches are first solved by the semi-explicit Runge-Kutta algorithm, and then the transients responses can be obtained for the system network. A comparison has been made between calculated and experimental result and a better agreement appears.

关 键 词：三相电力系统 暂态过电压 计算 铁磁元件 励磁特性曲线 

分 类 号：TM74[电气工程—电力系统及自动化]