基于原-对偶内点法的区域电网无功能力评估  

Assessment of Reactive Capability of Regional Power Grid Based on Primal-dual Interior Point Method

作　　者：张希猛[1,2] 李华强[1] 赵周芳[1] 方勇[1] 

机构地区：[1]四川大学电气信息学院 [2]61541部队

出　　处：《四川电力技术》2009年第4期28-31,56,共5页Sichuan Electric Power Technology

摘　　要：提出了区域电网无功能力的概念,定义了无功能力指标,建立了评估区域电网无功能力的数学模型。模型中考虑了电压稳定性、节点电压水平、热稳定等安全约束条件,并用原-对偶内点法求解。通过对IEEE 30节点和IEEE57节点样本系统的仿真,证明了该方法的有效性和正确性。The concept of reactive capability of regional power grid is proposed, then the index of reactive capability is defined and the mathematical model to evaluate the reactive capability of regional power grid is constructed. The security constraint condition considered in this mathematical model includes the voltage stability, the node voltage profile and the thermal stable constraint. Based on the established model, the primal - dual interior point method is used to calculate the index of reactive capability of regional power grid. The effectiveness and the accuracy of this method are testified by the simulation results of IEEE 30 - bus and IEEE 57 - bus sample systems.

关 键 词：电压稳定 区域电网 无功能力 无功裕度 原-对偶内点法 

分 类 号：TM714[电气工程—电力系统及自动化]