弱电网下的互联系统建模与稳定性分析
DOI:
作者:
作者单位:

北方工业大学

作者简介:

通讯作者:

中图分类号:

TM743

基金项目:

国家重点研发计划(2018YFB1503005);国家自然科学基金(51777002);国网公司科技项目(5278991900ML)


Modeling and stability analysis of interconnected system under weak current network
Author:
Affiliation:

North China University Of Technology

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 文章评论
    摘要:

    与传统电网相比,互联系统具有供电灵活性强,设备利用率高、装机容量小,运行更经济等优点,但是与之不同的是:在分析稳定性时,互联系统的变流器动态响应较快,若要对其内部结构和控制进行建模,则需要重新建立适用于其的模型。文章首先对3种不同控制类型的逆变器进行建模,然后从多种类逆变器组成的IEEE-9节点互联系统出发,进行系统建模并通过根轨迹计算分析其稳定性,得到系统各个参数变化对于系统稳定性的影响,在此基础上又通过灵敏度分析对系统敏感参数进行优化,从而增强了系统的稳定性,最后通过时域仿真对理论进行了验证,验证了模型的正确性。

    Abstract:

    Compared with the traditional power grid, the interconnected system has the advantages of strong power supply flexibility, high equipment utilization, small installed capacity and more economical operation. However, the difference is that when analyzing the stability, the converter dynamic response of the interconnected system is fast. In order to model its internal structure and control, it is necessary to re-establish the model suitable for it. Firstly, three different control types of inverters are modeled, and then starting from the ieee-9 node interconnected system composed of multiple inverters, the system is modeled, and its stability is analyzed through root locus calculation to obtain the impact of the changes of system parameters on the system stability. On this basis, the sensitive parameters of the system are optimized through sensitivity analysis, Finally, the theory is verified by time-domain simulation to verify the correctness of the model.

    参考文献
    相似文献
    引证文献
引用本文

温春雪,谷一凡,王鹏,等. 弱电网下的互联系统建模与稳定性分析[J]. 科学技术与工程, , ():

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2022-01-13
  • 最后修改日期:2022-05-18
  • 录用日期:2022-06-01
  • 在线发布日期:
  • 出版日期:
×
《科学技术与工程》影响力指数稳步提升
亟待确认的版面费信息