Power system state parallel estimation method and system

• Main Authors: YANG CHAO, WANG XIN, LIU WENXUE, LIANG SUJIE, LI CONGCONG, SHI FANGFANG, LI NA, XU ZHENG, ZHANG QIANG, LIANG ZHENGTANG, SUN KONGMING, LIU MENG, GUAN TI, BAI YINGWEI, LI YUDUN, TONG XINYUAN, SUN JINGWEN, ZHANG GUOHUI, HUANG QIANG, LI KUAN, MA QIANG, LIU YONG, WANG YONGBO, LI LEI
• Format: Patent
• Language: Chinese; English
• Published: 20.07.2021
• Subjects: CALCULATING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; COMPUTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRICITY; GENERATION; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention belongs to the field of power systems, and provides a power system state parallel estimation method and system. The method comprises the following steps: acquiring an electrical wiring diagram and measurement configuration of a power system, constructing a corresponding block information matrix network diagram, numbering the block information matrix network diagram by adopting a minimum length algorithm, and forming a directed factor diagram by taking minimum injection elements as a target; constructing a road tree according to the directed factor graph, and dividing nodes with the same depth in the road tree into the same parallel task; and iteratively solving the power system state corresponding to the sub-task in each parallel task based on the measurement equation of the power grid state estimation and the divided parallel tasks. 本发明属于电力系统领域，提供了一种电力系统状态并行估计方法及系统。其中，该方法包括获取电力系统的电气接线图及量测配置，构建相应的分块信息矩阵网络图，采用最小长度算法对分块信息矩阵网络图进行编号，以最少注入元为目标，形成有向因子图；根据有向因子图构建道路树，将道路树中的深度相同的节点划分为同一并行任务；基于电网状态估计的量测方程