摘要
提出了一种电力系统故障计算的解耦相分量法。选取故障点为边界节点将故障后的电网等值成相坐标下的仅含短路端口或者断线端口的解耦等值电路,从而在相坐标下可方便地模拟各种短路故障和断相故障,避免了复杂的序网连接,可方便地计及短路点接触电阻以及非完全断相处的故障阻抗的影响。最后通过仿真算例表明,该方法兼具对称分量法和相分量法的优点,是电力系统故障分析计算的一种十分简单、有效的方法。
This paper presents a decoupling phase domain method for fault calculation. The equivalent circuit is decoupled to avoid the coupling among different phases and the complex connection between sequence networks. The fault can be modeled accurately, including short circuit faults and open conductor faults. The influence of faulted point resistor or the fault impedance in incomplete open conductor can be modeled simply. The numerical example shows that this method is a very effective method for fault calculation in power system.
出处
《陕西电力》
2015年第11期65-69,共5页
Shanxi Electric Power
关键词
解耦相分量法
故障计算
电力系统
decoupling phase domain method
fault calculation
power system
