Stability analysis of large wind farms connected to weak AC networks incorporating PLL dynamics

Kamyab Givaki, Lie Xu

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

2 Citations (Scopus)
109 Downloads (Pure)


Voltage source converter interfaced wind turbines connected to weak grids can induce system instability. A state space model is used in this paper to study the stability of large wind farms. Dynamics of the phase locked loop is integrated to the state space model. The advantage of this model is that it allows study the stability of systems with parallel wind turbines. Studies on the dynamic responses of the system show the importance of including phase locked loop as its existence can induce system instability especially under weak network conditions. This model can be used to study the stability of converter interfaced wind farms and helps to design the converter controller to ensure wind farm system stability when connected to weak grids.
Original languageEnglish
Title of host publicationInternational Conference on Renewable Power Generation (RPG 2015)
Number of pages6
Publication statusPublished - 18 Oct 2015
EventIET Renewable Power Generation (RPG) - Beijing, China
Duration: 17 Oct 201518 Oct 2015


ConferenceIET Renewable Power Generation (RPG)


  • phase locked loop
  • stability
  • vector current control
  • voltage source converter
  • wind farm


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