Journal of international Conference on Electrical Machines and Systems

Journal of International Conference on Electrical Machines and Systems (대한전기학회 분과)
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A New Flux Tracking LVRT Control Scheme for Doubly Fed Induction Generators

  • Park, Sun-Young (HAE R&D center in LG Electronics) ;
  • Ahn, Hyung-Jin (School of Electronic and Electrical Engineering, Hongik University) ;
  • Lee, Dong-Myung (School of Electronic and Electrical Engineering, Hongik University)
  • Received : 2013.07.12
  • Accepted : 2013.08.20
  • Published : 2013.09.01
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Abstract

Doubly fed induction generator (DFIG) systems widely used globally are highly sensitive to the grid disturbance due to the structure that the stator is connected to the grid. In the past, when a grid fault occurs in order to prevent a system, generators are separated from the grid regardless of the fault duration time. Recently, however, the grid connection standards(Grid Code)says that for the failures removed within a certain time, the generator remains operation without separating from the grid. This paper proposes a new flux tracking LVRT(Low-Voltage Ride Through) control based on system modeling equations. The validity of the proposed strategy has been demonstrated by computer simulations.

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