基于支持向量机的电力系统临界割集暂态稳定可用传输容量快速预测

发布时间：2018-07-16 16:24

【摘要】：传统的稳定裕度在转化为电力系统控制措施时比较困难,针对这一不足,提出了基于临界割集暂态稳定可用传输容量(TATC)的暂态稳定裕度表征方法。在此基础上,为了实现TATC的在线快速计算,进一步提出了基于支持向量机(SVM)的TATC快速预测模型。IEEE10机39节点仿真结果表明,相对于临界切除时间,TATC能够从控制的角度对系统的暂态稳定裕度进行更加细致的划分,便于电网运行人员根据TATC结果快速制定出有针对性的预防控制和紧急控制措施。同时,所提TATC预测模型,在200个样本规模下的预测准确率在97%以上,并且随着样本规模的增加,模型预测准确率有着进一步的提升空间,具有良好的在线应用前景。
[Abstract]:It is difficult to convert the traditional stability margin into power system control measures. In order to solve this problem, a transient stability margin representation method based on critical cut set transient stability available transmission capacity (TATC) is proposed. On this basis, in order to realize the fast calculation of TATC on line, a fast prediction model of TATC based on support vector machine (SVM). Compared with the critical cutting time (TATC), TATC can divide the transient stability margin of the system more carefully from the point of view of control, and it is convenient for power grid operators to quickly formulate preventive control and emergency control measures according to TATC results. At the same time, the prediction accuracy of the proposed TATC prediction model is more than 97% under 200 sample scales, and with the increase of the sample size, the prediction accuracy of the model has further improvement space, and has a good online application prospects.
【作者单位】：华中科技大学强电磁工程与新技术国家重点实验室;深圳供电局有限公司;国网冀北电力有限公司;国网武汉供电公司;
【基金】：国家高技术研究发展计划(863计划)(2011AA05A101) 国家电网公司科技项目(编号略)~~
【分类号】：TM712

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