潮流追踪解析算法

摘要

Relationship between power sources and loads is the crucial key information in power grid planning and system stability control.The objective of this paper is to boost efficiency and practicality of power flow tracking algorithm which is the effective method to obtain relationship between sources and flows.Based on the principle of proportion sharing and Kirchhoff's law,new downstream and upstream matrices are formatted and their elements use both line results and node results of power flow calculation.Distribution coefficient of single source or single load mode can be figured up according to matrix decomposition and back/forward sweep technology of downstream and upstream matrices.Algorithm in this paper can remarkably reduce calculation burden and provide prospect for parallel calculation.Finally its correctness and feasibility are validated in several power grids.%在电网规划和稳定控制方面,电源和负荷的源流关系是十分关键的信息.潮流追踪技术是获取源流关系的有效方法,研究旨在提高潮流追踪方法的效率和实用性.基于比例共享原理和电路的基尔霍夫原理,构造了新的顺流追踪矩阵和逆流追踪矩阵,矩阵元素采用电网潮流计算的线路潮流结果和节点潮流结果,通过顺流和逆流矩阵的矩阵分解和前推回代技术实现了单源或单流的分配系数计算.算法计算负担小,具并行计算潜力.在多个系统中进行了验算,证明了算法的正确性和可靠性.