基于广义S变换的多变量非平稳风速高精度模拟

陆炳文; 罗锞兴; 曹黎媛; 李春祥

doi:10.19912/j.0254-0096.tynxb.2023-1716

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (2) : 548-555. DOI: 10.19912/j.0254-0096.tynxb.2023-1716

基于广义S变换的多变量非平稳风速高精度模拟

陆炳文, 罗锞兴, 曹黎媛, 李春祥

作者信息 +

HIGH PRECISION SIMULATION OF MULTIVARIATE NON-STATIONARY WIND SPEEDS BASED ON GENERALIZED S-TRANSFORM

Lu Bingwen, Luo Kexing, Cao Liyuan, Li Chunxiang

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文章历史 +

摘要

提出基于广义S变换（GST）的多变量非平稳风速高精度模拟方法。为获得更清晰的时频分辨率,首先进行了窗函数参数研究。随后,使用粒子群优化（PSO）方法对GST窗函数参数进行寻优。使用优化的GST时频谱进行模拟,获得高精度多变量非平稳风速模拟样本。最后,通过数值试验验证该方法的有效性和优越性。

Abstract

In this respect, a high precision simulation method based generalized S-transform （GST） is proposed in this paper for multivariate non-stationary winds. Firstly, the window function parameters are investigated to obtain a clearer time-frequency resolution. Further, the particle swarm optimization （PSO） method is used to optimize the parameters of GST window function. The optimized GST time-frequency spectrum is used for simulation, the high precision multivariate non-stationary wind speed samples are then generated. Finally, the effectiveness and superiority of the proposed method are verified by numerical experiments.

导出引用

陆炳文, 罗锞兴, 曹黎媛, 李春祥. 基于广义S变换的多变量非平稳风速高精度模拟[J]. 太阳能学报. 2025, 46(2): 548-555 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1716

Lu Bingwen, Luo Kexing, Cao Liyuan, Li Chunxiang. HIGH PRECISION SIMULATION OF MULTIVARIATE NON-STATIONARY WIND SPEEDS BASED ON GENERALIZED S-TRANSFORM[J]. Acta Energiae Solaris Sinica. 2025, 46(2): 548-555 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1716

中图分类号： TU311

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