计及系统可观测性的网络化简与黑启动分区方案制定  

Network Simplification and Formation of Black-start Zone Partitioning Scheme Considering System Observability

作　　者：顾雪平[1] 周光奇[1] 李少岩[1] GU Xueping;ZHOU Guangqi;LI Shaoyan(School of Electrical and Electronic Engineering,North China Electric Power University,Baoding 071003,China)

机构地区：[1]华北电力大学电气与电子工程学院

出　　处：《电力系统自动化》2019年第20期114-122,共9页Automation of Electric Power Systems

基　　金：中央高校基本科研业务费专项资金资助项目（2018MS085）~~

摘　　要：基于相量测量单元的广域相量测量系统能够实时反映电网的动态变化,其测量信息的实时性将有助于系统恢复安全快速进行,为大停电后的系统恢复带来新的机遇。首先,将黑启动分区方案优化问题和广域相量测量系统结合起来,建立了考虑系统可观测性的黑启动分区整数线性规划模型。该模型除满足分区功率平衡、分区连通性、特殊支路开断约束以及分区最小规模限制这些基本约束外,还将全网可观测和联络节点可观测2种可观性要求分别转化成线性约束纳入其中。其次,利用可观测度为0以及部分可观测度为1的节点对拓扑图进行简化,降低了优化模型决策空间的规模,进而提高了计算效率。IEEE 118系统算例结果验证了所提模型和系统简化方法的有效性,同时也进一步表明模型的可扩展性。The wide-area phasor measurement system based on phasor measurement unit can reflect the real-time dynamic changes of power system, and the restoration process would be quicker and safer with the help of the real-time measurement information, which brings new opportunities to restoration of power system after blackouts. Firstly, optimal problem of black-start zone partitioning scheme is combined with wide-area phasor measurement system, and an integer linear programming model for black-start zone partitioning considering system observability is established. In addition to meet the constraints such as partitioning power balance, connectivity of subsystems, the operation status constraints of specific lines and minimum scale of subsystems, the requirement that whole grid and tie-line nodes can be observable is integrated into the model as linear constraint. Furthermore, the topology graph is simplified according to the nodes whose observability degree is 0 and some of nodes whose observability degree is 1. Thus, the scale of decision space is reduced and the computational efficiency will be improved. The experimental results of IEEE 118 system verify the effectiveness of the proposed model and system simplification method, and the extensibility of proposed model has been further indicated.

关 键 词：大停电 黑启动分区 相量测量单元 可观测性 整数线性规划 网络化简 

分 类 号：TM73[电气工程—电力系统及自动化]