继电保护整定计算中形成简单回路的方法

形成电力网络中的所有简单回路的方法是影响断点求取算法效率的关键步骤，该文针对现代电网回路分布的特点，以基本回路线性组合方法为基础，提出了一种形成所有简单回路的新方法，即将已经形成的简单回路或复合回路与基本回路进行回路组合，得到新的简单回路，新方法不但可以排除多种无效的回路组合，而且回路组合计算量小，算例证明了文中思想和算法的正确性。

STUDY ON THE SIMPLE LOOP FORMATION METHOD IN RELAY COORDINATION

Formation of all simple loops is a pivotal step of influencing the efficiency of break point determination algorithm. In view of the characteristic of modern power network loop distribution, based on the method of fundamental loop linear combination, a new simple loop formation method is presented in this paper. Combining formed simple loops or complex loops with fundamental loops can form new simple loops. The new method can not only eliminate most invalid loop combination, but also decrease the calculation quantities The result of the example has shown the effectiveness of the new method.