Wind Power Time Series Aggregation Approach Based on Affinity Propagation Clustering and MCMC Algorithm

被引:0
作者
Ye L. [1 ]
Li J. [1 ]
Lu P. [1 ]
Zhai Q. [1 ]
Li P. [2 ]
Wang W. [2 ]
Dong L. [3 ]
机构
[1] College of Information and Electrical Engineering, China Agricultural University, Haidian District, Beijing
[2] China Electric Power Research Institute, Haidian District, Beijing
[3] Qinghai Electric Power Company, Xining, 810000, Qinghai Province
来源
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2020年 / 40卷 / 12期
基金
国家重点研发计划;
关键词
Affinity propagation clustering; Aggregation sequence; Markov Chain Monte Carlo; Time sequential simulation; Wind power time series data;
D O I
10.13334/j.0258-8013.pcsee.190788
中图分类号
学科分类号
摘要
In order to reduce the redundant data in wind power time series and improve the computational efficiency of power system simulation. This paper proposed a wind power time series data aggregation method based on affinity propagation clustering and Markov Chain Monte Carlo (AP-MCMC). Firstly, autocorrelation function and fast Fourier transform were used to analyze periodic characteristics in wind power time series data to select the best time scale of scenario samples in time domain and frequency domain. Secondly, affinity propagation clustering was applied to generate multi-class daily scenario clusters based on the Markov Chain Monte Carlo method. A state transition probability matrix of various daily scenario clusters was constructed and the aggregation state sequence of random length was generated. Finally, the day scenarios were sampled in a sequential one-way sequence according to the state sequence and were built into a representative wind power time series aggregation sequence. A provincial power grid was chosen as an example to compare the multiple evaluation index of the AP-MCMC method, typical day method and typical scenario set method. Results show that the aggregation sequence generated by AP-MCMC method can more accurately describe characteristics of wind power to develop the optimization strategy in time sequential simulations, thus improves accuracy and efficiency of simulations with potential engineering application. © 2020 Chin. Soc. for Elec. Eng.
引用
收藏
页码:3744 / 3753
页数:9
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