基于STSGCN和VNBA的电力系统TSCOPF模型研究  

Transient Stability Constrained Optimal Power Flow Model for Power Systems Based on STSGCN and VNBA

作　　者：刘颂凯 刘龙成 杨超[1,2] 李彦彰 张磊 王秋杰[1,2] 刘旭 LIU Songkai;LIU Longcheng;YANG Chao;LI Yanzhang;ZHANG Lei;WANG Qiujie;LIU Xu(College of Electrical Engineer and New Energy,China Three Gorges University,Yichang 443002,China;Hubei Provincial Collaborative Innovation Center for New Energy Microgrid,Yichang 443002,China;State Grid Wuhan Power Supply Company,Wuhan 430000,China;State Grid Zhejiang Super High Voltage Company,Hangzhou 311121,China)

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002 [2]新能源微电网湖北省协同创新中心,湖北宜昌443002 [3]国网武汉供电公司,湖北武汉430000 [4]国网浙江超高压公司,浙江杭州311121

出　　处：《智慧电力》2024年第12期19-26,共8页Smart Power

基　　金：国家自然科学基金资助项目(52307109);湖北省自然科学基金(2022CFB825)。

摘　　要：为保证电力系统运行的安全性和经济性,针对故障后电力系统的暂态失稳问题,提出基于时空同步图卷积网络(STSGCN)和可变邻域蝙蝠算法(VNBA)的电力系统暂态稳定约束最优潮流(TSCOPF)模型。首先,通过STSGCN确立系统输入特征与构建的暂态稳定系数间的联系;然后,利用基于全特征集的STSGCN实现高精度的暂态稳定评估,将基于可控特征集的STSGCN作为暂态稳定约束嵌入TSCOPF模型;最后,采用VNBA对TSCOPF模型进行优化求解。算例分析表明,所提方法能够兼顾电力系统安全性与经济性,有效提升系统在故障情景下的暂态稳定。To ensure the security and economy of power system operation,the paper proposes the transient stability constrained optimal power flow(TSCOPF)model for power systems based on spatio-temporal synchronous graph convolutional networks(STSGCN)and variable neighborhood bat algorithm(VNBA)for the transient instability problem in the power systems after a fault.Firstly,the associations between system input characteristics and constructed transient stability indexes are built through STSGCN.Then the full feature set based STSGCN is utilized to achieve high-precision transient stability assessment,and the controllable feature set based STSGCN is embedded into the TSCOPF model as the transient stability constraint.Finally,the VNBA is used to solve the TSCOPF model optimally.The example analysis demonstrates that the proposed method can consider both the security and economy of the power systems,and effectively enhances the transient stability of the system in fault scenarios.

关 键 词：TSCOPF STSGCN VNBA 

分 类 号：TM712[电气工程—电力系统及自动化]