基于小生境协同互联的黑启动网架重构策略研究  

Research on grid reconfiguration strategy of black start based on niches collaborative interconnection

作　　者：李桐歌 黄永红[1] 马骏毅 赵正晖 徐艺敏 LI Tongge;HUANG Yonghong;MA Junyi;ZHAO Zhenghui;XU Yimin(School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu,China;State Grid Zhenjiang Power Supply Company,Zhenjiang 212000,Jiangsu,China)

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013 [2]国网镇江供电公司,江苏镇江212000

出　　处：《电测与仪表》2024年第8期119-126,共8页Electrical Measurement & Instrumentation

基　　金：国网江苏省电力有限公司科技项目(J2020014)。

摘　　要：随着电网规模的扩大,大停电引发的后果愈发严重,黑启动是重启瘫痪电网的有效措施,网架重构是黑启动过程的重要环节。为提高大停电后电力系统的黑启动效率,充分利用分布式黑启动电源在网架恢复过程中的优势,提出了基于小生境协同互联的黑启动网架重构策略。借助图论中的Kruskal算法,以节点和支路权重为导向对待恢复网架进行图抽象,并以网架恢复时间最短为主要目标,构建黑启动网架重构优化模型。在排挤和预选择的双机制作用下,采用改进小生境遗传算法对该模型进行求解,在此基础上融入串并行配合的恢复策略实现小生境协同互联。由上述求解过程,达到对网架重构过程的优化调节。通过与改进前方法的对比,用恢复时间、电压偏移量和有功损耗的指标对IEEE 39仿真结果进行评价,结果表明所提方法能有效提高网架重构速度,保证协同互联的稳定。同时,借助江苏省某市局部电网数据,证实了所建模型的有效性和可行性。ed based on the node and branch weight.The main goal is the shortest recovery time and the black-start grid reconfiguration optimized model is constructed.Secondly,an improved niche genetic algorithm is proposed to solve the model under the action of double mechanisms of squeezing and pre-selection.On this basis,a recovery strategy of serial-parallel cooperation is introduced to achieve niche collaborative interconnection.The optimal adjustment of the grid reconfiguration process is achieved through the above solving process.Finally,the IEEE 39 simulation results are evaluated with the indices of recovery time,voltage offset and active power loss by comparing with the pre-improvement method.It is concluded that the proposed method can effectively improve the reconfiguration speed and ensure the stability of collaborative interconnection.Meanwhile,the validity and feasibility of the proposed model are verified by the local power grid in Zhenjiang,Jiangsu Province.

关 键 词：黑启动 网架重构 小生境技术 协同互联 串并行恢复 

分 类 号：TM73[电气工程—电力系统及自动化]