A novel open-stator-winding DFIM flywheel architecture for renewable energy applications

Azmy Gowaid, A. Elserougi, A. S. Abdel-Khalik, A. M. Massoud, S. Ahmed

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

2 Citations (Scopus)


Energy storage is becoming a basic component of modern renewable power plants, especially wind farms. For several considerations, local wind turbine (WT) energy storage is preferred. Flywheel energy storage is among the most promising storage systems regarded for wind applications. This paper proposes a new architecture for flywheel energy storage based on doubly fed induction machine (DFIM) where the open winding stator of the machine is connected in series between the grid and the wind turbine grid side converter. In this architecture, the flywheel-converter is of partial power rating, and is connected to the DFIM rotor. The paper proposes the control concept and thorough simulations test the performance parameters of the system under normal and abnormal operating conditions. Results and analyses indicate smooth dynamic operation, the economic advantage and the improved WT frequency support capability and fault ride through due to the proposed system.
Original languageEnglish
Title of host publication4th International Conference on Power Engineering, Energy and Electrical Drives
Number of pages7
Publication statusPublished - 21 Oct 2013


  • asynchronous machines
  • energy storage
  • flywheels
  • machine windings
  • power convertors
  • power generation faults
  • power grids
  • stators
  • wind power plants
  • wind turbines
  • DFIM rotor
  • WT frequency support capability
  • abnormal operating conditions
  • control concept
  • doubly fed induction machine
  • fault ride through
  • flywheel converter
  • flywheel energy storage
  • local wind turbine energy storage
  • modern renewable power plants
  • open winding stator
  • open-stator-winding DFIM flywheel architecture
  • partial power rating
  • renewable energy applications
  • smooth dynamic operation
  • wind applications
  • wind farms
  • wind turbine grid side converter
  • Flywheels
  • Reactive power
  • Rotors
  • Stator windings
  • Vectors
  • Voltage control
  • doubly-fed induction machine (DFIM)
  • variable speed wind turbines
  • wind power generation


Dive into the research topics of 'A novel open-stator-winding DFIM flywheel architecture for renewable energy applications'. Together they form a unique fingerprint.

Cite this