风力发电机组旋转Fourier谱物理机制

doi:10.3969/j.issn.1000-7229.2014.08.021

电力建设 ›› 2014, Vol. 35 ›› Issue (8): 119-124.doi: 10.3969/j.issn.1000-7229.2014.08.021

风力发电机组旋转Fourier谱物理机制

贺广零1，佟辉2

1.中国电力工程顾问集团华北电力设计院工程有限公司，北京市 100120；2.大庆油田电力集团宏伟热电厂，黑龙江省大庆市 163411

出版日期:2014-08-01
作者简介:贺广零（1982），男，博士，高级工程师，主要从事新能源结构分析与设计，E-mail：hglcool@126.com；佟辉（1967），男，高级工程师，主要从事电力生产技术管理工作，E-mail：tongh@cnpc.com.cn。
基金资助:
国家高技术研究发展计划项目（863计划）（2008AA05Z413）；中国博士后科学基金项目（20110490702）；水沙科学与水利水电工程国家重点实验室开放基金项目（SKLHSE-2012-D-02）；华北电力设计院工程有限公司科标业项目（K2011-T03、K2013-T501、Y2013-T501）。

Physical Mechanism of Rotational Fourier Spectrum for Wind Turbine

HE Guangling1, TONG Hui2

1. North China Power Engineering Co., Ltd. of China Power Engineering Consulting Group, Beijing 100120, China；2. Daqing Oil Field Electric Power Group Hongwei Thermal Power Plant, Daqing 163411, Heilongjiang Province, China

Online:2014-08-01

摘要/Abstract

摘要： 基于常规的紊流风速功率谱很难准确预测风力发电机组的极值荷载与疲劳荷载。为准确预测风电机组作用荷载，在明确叶片旋转效应物理机制的基础上，推导了样本互相关函数与Fourier互谱之间的关系，进而提出了旋转Fourier风速谱模型。为全面把握旋转Fourier谱的物理本质，探索了影响旋转Fourier谱的主要参数（包括计算半径、叶片旋转速度、平均风速、地面粗糙度等），并进行了相应的参数分析。研究表明，相比传统紊流风谱而言，旋转Fourier谱更具物理意义及工程价值。

关键词: 风力发电机组, 旋转Fourier谱, 物理机制, 参数分析, 物理意义

Abstract: Conventional wind turbulent speed spectra are difficult to accurately predict the extreme loads and fatigue loads of wind turbines. To predict those loads accurately, based on a clear physical mechanism of blade rotational effect, a relationship between Fourier spectra and the cross-correlation function of samples was derived, and a rotational Fourier wind spectrum model was proposed. To comprehensively grasp the physical essence of rotational Fourier spectra, the main influencing parameters of rotational Fourier spectra were explored, including calculating radius, blade rotational speed, mean wind speed, surface roughness, etc. And then the analysis of corresponding parameter was carried out. The research results show that the rotational Fourier spectra have more physical meaning and engineering value compared with conventional wind turbulent speed spectra.

Key words: wind turbine system, physical mechanism, rotational Fourier spectrum, parameter analysis, physical significance

贺广零，佟辉. 风力发电机组旋转Fourier谱物理机制[J]. 电力建设, 2014, 35(8): 119-124.

HE Guangling, TONG Hui. Physical Mechanism of Rotational Fourier Spectrum for Wind Turbine[J]. ELECTRIC POWER CONSTRUCTION, 2014, 35(8): 119-124.

参考文献

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风力发电机组旋转Fourier谱物理机制

Physical Mechanism of Rotational Fourier Spectrum for Wind Turbine

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