Research on probabilistic load flow method based on point estimation and dimension reduction by dominated variables

Xiao, Yuanbing; Cheng, Haozhong; Lei, Ting; Zhang, Shenxi; Luan, Weijie; Yang, Di

doi:10.1109/drpt.2015.7432300

Cited by 1 publication

(1 citation statement)

References 5 publications

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“…At present, various improved versions of point estimation methods have been developed, such as probabilistic power flow developed by point estimation method in literature [3], sampling improvement of point estimation method in literature [4], convolution calculation combined in the improvement of point estimation method in literature [5], and Fourier series added in literature [6] on the basis of convolution calculation. For the distribution of multiple peak values, the spline method was rearranged in literature [7], and the Gaussian method was used in literature [8] for hybrid approximation of the function distribution, which can ensure a higher level of calculation accuracy after improvement.…”

Section: Introductionmentioning

confidence: 99%

An Improved Three-point Method for Power Flow Calculation based on Halton Sequence

Wang¹,

Wu²

2023

FCIS

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With the development of electric power system, it is necessary to expand the scale of new energy power generation to meet the demand of peak cutting and valley filling. The new energy power generation presents intermittenity and volatility, so it is a hot research topic to use the theory of point estimation method to study the power system planning based on uncertainty quantity. This paper improved the three-point estimation method in probabilistic power flow calculation, combined with Halton sequence sampling method to make sampling samples more uniform, and then added a pair of estimation points on the basis of the three-point estimation method, so as to improve the precision of power flow calculation without calculating the fourth moment. The proposed method is verified on IEEE14 and IEEE33 node systems, and the results verify the rationality of the improved three-point method based on Halton sequence.

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