基于直流潮流模型的电网结构优化方法研究与应用  

Research and Application of Network Structure Optimization Method Based on DC Power Flow Model

作　　者：刘石川[1,2] 慕腾 郭裕 雷轲[1,2] 安东 LIU Shichuan;MU Teng;GUO Yu;LEI Ke;AN Dong(Inner Mongolia Power Research Institute,Hohhot 010020,China;Inner Mongolia Enterprise Key Laboratory of Smart Grid Simulation of Electrical Power System,Hohhot 010020,China)

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020 [2]内蒙古自治区电力系统智能化电网仿真企业重点实验室,呼和浩特010020

出　　处：《内蒙古电力技术》2022年第2期45-49,共5页Inner Mongolia Electric Power

基　　金：内蒙古电力(集团)有限责任公司科技项目“基于安全域的内蒙古电网运行方式多维度评估技术研究及应用”(2022-19)。

摘　　要：针对某地区电网实际运行中存在的热稳定问题,推导了基于直流潮流的支路开断分布系数,并得出潮流转移仅与阻抗相关的结论,同时针对当前电网提出了提升地区电源送出能力、运行精细化的安全裕度指标。结合安全裕度指标,给出电网远期结构的优化思路;通过技术经济比选明确了最终方案,并将其应用于实际电网规划中。In view of the thermal stability problems existing in the actual operation of some regional power grid,the line outage distribution factor based on DC power flow is deduced,and it is concluded that power flow transfer is only related to impedance.At the same time,according to the current power grid,a safety margin index is proposed to improve the regional power supply transmission capability and refine the operation.Combined with the safety margin index,the optimization idea of long⁃term power grid structure is given.The final scheme is clarified through the technical and economic comparison,and it is applied to the actual power grid planning.

关 键 词：电网 直流潮流 支路开断分布系数 安全裕度指标 电网结构 

分 类 号：TM715[电气工程—电力系统及自动化]