面向电网侧储能配置的静态电压稳定临界样本生成方法  

Static Voltage Stability Critical Sample Generation Method for Power Grid Side Energy Storage Configuration

作　　者：白立松 吴永超 张志伟 李敏 陈万喜 BAI Lisong;WU Yongchao;ZHANG Zhiwei;LI Min;CHEN Wanxi(Hengshui Taocheng District Power Supply Branch of State Grid Hebei Electric Power Co.,Ltd.,Hengshui 053000,China;Hengshui Power Supply Branch of State Grid Hebei Electric Power Co.,Ltd.,Hengshui 053000,China;Shanghai Proinvent Information Technology Co.,Ltd.,Shanghai 200241,China)

机构地区：[1]国网河北省电力有限公司衡水市桃城区供电分公司,河北衡水053000 [2]国网河北省电力有限公司衡水供电分公司,河北衡水053000 [3]上海博英信息科技有限公司,上海200241

出　　处：《微型电脑应用》2024年第12期97-101,共5页Microcomputer Applications

基　　金：国网河北省电力有限公司衡水供电分公司(SGHEHS00FCJS2100526);国网河北省电力有限公司衡水市桃城区供电分公司(SGHEHSTCFZJ2100122)。

摘　　要：为了可靠地掌握电网的运行状态,解决电网侧储能配置样本冗余、特征描述能力较差的问题,提出面向电网侧储能配置的静态电压稳定临界样本生成方法。依据构建的静态电压稳定判别指标,分析电网侧储能配置对该指标的影响,确定静态电压稳定临界点与非线性潮流方程的鞍结分岔点之间的关联;创新性地计算静态电压的潮流方程,在潮流可解性的基础上,使用迁移学习和梯度惩罚优化的Wasserstein生成对抗网络,生成静态电压稳定临界样本,并确定非联络节点为生成样本的特征参量以及样本约束。测试结果显示:所提方法建立的稳定性指标具有有效性,生成静态电压稳定临界样本时充分考虑了储能装置并精准描述了电网的电压情况,波动范围均在1~2 pu;生成支路不同端的静态电压稳定临界样本,可依据该样本判断电网运行状态。In order to reliably grasp the operation state of the power grid and solve the problems of sample redundancy and poorer feature description ability of energy storage configuration on the power grid side,a static voltage stability critical sample generation method for power grid side energy storage configuration is proposed.According to the constructed static voltage stability discrimination index,the influence of power grid side energy storage configuration on the index is analyzed,and the correlation between the static voltage stability critical point and the saddle-node bifurcation point of nonlinear power flow equation is determined.This paper innovatively calculates the power flow equation of static voltage,based on the solvability of power flow,on the basis of trend solvability,Wasserstein generative adversarial network optimized by transfer learning and gradient penalty is used to generate the critical samples of static voltage stability and determines the non-connecting nodes as the characteristic parameters and sample constraints of the generated samples.The test results show that the stability index established by the proposed method is effective.When generating the critical samples of static voltage stability,the method fully considers the energy storage configuration and accurately describes the voltage of the power grid.The fluctuation range is 1 to 2 pu.The critical samples of static voltage stability at different ends of the branch are generated,and the operation state of the power grid can be judged according to the samples.

关 键 词：电网侧 储能配置 静态电压稳定 临界样本生成 

分 类 号：TM721[电气工程—电力系统及自动化]