文章摘要
安军,冯琦,穆钢,等.含高比例风电的复杂电力系统敏感频段识别方法[J].电力系统自动化. DOI: 10.7500/AEPS20170611003.
An Jun,Feng Qi,Mu Gang, et al.The Sensitive Frequency Band Recognition Method for Complicated Power System Containing High Proportion of Wind Power[J].Automation of Electric Power Systems. DOI: 10.7500/AEPS20170611003.
含高比例风电的复杂电力系统敏感频段识别方法
The Sensitive Frequency Band Recognition Method for Complicated Power System Containing High Proportion of Wind Power
DOI:10.7500/AEPS20170611003
关键词: 敏感频段;风功率波动  复杂电力系统;频率特性
KeyWords: sensitive frequency band  wind power fluctuation  bulk power system  frequency characteristic
上网日期:2017-09-12
基金项目:
作者单位E-mail
安军 东北电力大学电气工程学院 anhuianjun@163.com 
冯琦 东北电力大学电气工程学院 790357443@qq.com 
穆钢 东北电力大学电气工程学院 mg@neepu.edu.cn 
李泽宇 国家电网东北电力调控分中心 lizeyu@ne.sgcc.com.cn 
岳涵 国家电网东北电力调控分中心 yuehan@ne.sgcc.com.cn 
王克非 国家电网东北电力调控分中心 wangkefei@ne.sgcc.com.cn 
摘要:
      随着系统中风电渗透率的增加,风功率波动对于电力系统频率的影响不可忽视。本文首先定义了“敏感频段”的概念,对单机系统频率响应模型进行分析,揭示了不同频率的功率扰动对系统频率特性影响程度的差异。其次,对于复杂电力系统非线性特性,提出了利用聚类思想识别复杂电力系统敏感频段的分区域扫频法。最后,给出了从敏感频段角度分析风功率波动对电力系统频率特性影响的分析方法,结合风功率波动的幅频特性评估其对电网频率的影响,通过东北电网算例证实了敏感频段的存在,验证了所提方法的有效性。本论文的工作同时也为风电场功率波动的平抑提供了理论指导。
Abstract:
      With the increase of wind power penetration rate, the influence of system frequency stability due to wind power can not be ignored. In this paper, firstly, Firstly, the concept of "sensitive frequency band" is defined, In order to find the frequency characteristics difference between power distribution with different frequency, the frequency response model of single machine system is analyzed. Secondly, considering the nonlinear characteristics of complex power systems, the method of cluster scanning is proposed to recognize the sensitive frequency bands of complex power systems. Finally, the method of analyzing the influence of wind power fluctuation on the frequency characteristics of power system is analyzed from the sensitive frequency band. The existence of a sensitive frequency band is verified by an example of the Northeast power grid, and the effectiveness of the proposed method is verified and it also provides a reference for stabilizing the power fluctuation of wind farms.
查看全文   查看/发表评论  下载PDF阅读器