函数相关算法在继电保护整定计算中的应用

Application of functional dependency in protection system coordination

断点集BPS(BreakPointSet)是继电保护整定计算的起点,在电力系统继电保护整定计算中选择合适的断点集和相应的整定顺序矩阵是一个很重要的环节。在阐述了最小断点集和相关顺序矩阵RSM(RelativeSequenceMatrix)的概念后,又介绍了函数相关算法,以及如何应用函数相关算法求取系统的最小断点集和整定顺序矩阵,提高整定计算速度。函数相关算法不需要求取网络的简单回路,呈多项式阶复杂性,而图论算法为指数阶复杂性,因此该方法比图论解法更加快速、灵活和简便,大大提高了整定计算的效率。

The Break Point Set(BPS)is the beginning of the coordination.It is an important step to select a suitable break point set and the corresponding relative sequence matrix.After the concept s introduction of the minimal BPS and Relative Sequence Matrix(RSM),the algorithm of functional dependency is introduced.How to apply it to get the mini mal BPS and RSM and to improve the computing speed is presented,in which the simple loop of the system is not required in the proposed algorithm.Because the proposed algorithm is of polynomial complexity while the algorithm of gragh theoretic schemes is of exponential complexity,the former is more efficient ,flexible and convenient than the latter and improves the efficiency of coordination.