含智能软开关的配电网多阶段弹性力学映射与评估  

Multi-Stage Elastic Mechanical Modelling and Evaluation of Distribution Networks with Soft Open Point

作　　者：秦清 韩蓓[1] 李国杰[1] 罗林根[1] 汪可友[1] Qin Qing;Han Bei;Li Guojie;Luo Lingen;Wang Keyou(Key Laboratory of Control of Power Transmission and Conversion Ministry of Education Shanghai Jiao Tong University,Shanghai 200240 China)

机构地区：[1]上海交通大学电力传输与功率变换控制教育部重点实验室,上海200240

出　　处：《电工技术学报》2021年第21期4444-4458,共15页Transactions of China Electrotechnical Society

基　　金：国家重点研发计划资助项目(2016YFB0900504)。

摘　　要：弹性是衡量电网抵御扰动及故障后快速恢复能力的指标,其评估涉及对扰动的抵御、响应及恢复等多阶段过程。目前大多数研究利用仿真结果或历史数据的统计分析评估系统弹性。该文建立基于多阶段弹性力学映射的配电网模型,充分考虑系统的运行状态及物理特性,从应对扰动的抵御能力及故障后的恢复能力两个角度进行弹性的多阶段评估。对含智能软开关(SOP)的支路进行弹性力学映射,分析其在正常运行和供电恢复中的作用。通过IEEE 33节点系统与IEEE123节点系统验证多阶段弹性力学映射评估的合理性和有效性,分析SOP对配电网弹性的影响,验证其对弹性提升的作用,比较和探讨SOP的安装位置和控制量对弹性的影响。Resilience measures the ability of the power system to resist disturbance and quickly recover after failure. Its evaluation involves a multi-stage process of resisting, adapting, responding and recovering to disturbances. Most current researches use simulation results or statistical analysis of historical data to evaluate system resilience. This paper establishes a distribution network model based on multi-stage elastic mechanics mapping. This model fully considers the operating state and physical characteristics of the system, and conducts a multi-stage assessment of resilience from the two perspectives of resistance to disturbance and recovery after failure. It analyzes the role of soft open point(SOP) in normal operation and power supply restoration based on the elastic mechanics model.Computation and analysis conducted based on the IEEE 33-bus system and IEEE 123-node test feeder verify the rationality of the multi-stage evaluation of resilience. The influence of SOP on the resilience of the distribution network is analyzed, and the results show its effect on the improvement of resilience.The influences of different installation positions and control variables of SOP on the resilience are compared and discussed.

关 键 词：配电网弹性 弹性力学映射 智能软开关 等效弹性系数 供电恢复 

分 类 号：TM744[电气工程—电力系统及自动化]