Simulation Tool to Assess Mechanical and Electrical Stresses on Wind Turbine Generators

Mohit Singh, Eduard Muljadi, Vahan Gevorgian, Jason Jonkman

Research output: Contribution to conferencePaperpeer-review

1 Scopus Citations


Wind turbine generators (WTGs) consist of many different components to convert kinetic energy of the wind into electrical energy for end users. Wind energy is accessed to provide mechanical torque for driving the shaft of the electrical generator. The conversion from wind power to mechanical power is governed by the aerodynamic conversion. The aerodynamic-electrical-conversion efficiency of a WTG is influenced by the efficiency of the blades, the gearbox, the generator, and the power converter. This paper describes the use of MATLAB/Simulink to simulate the electrical and grid-related aspects of a WTG coupled with the FAST aeroelastic wind turbine computer-aided engineering tool to simulate the aerodynamic and mechanical aspects of a WTG. The combination of the two enables studies involving both electrical and mechanical aspects of a WTG. For example, mechanical engineers can formulate generator control that may preserve the life of the gearbox or mitigate the impact of transient events occurring on the transmission lines (faults, voltage and frequency dips, unbalanced voltages, etc.). Similarly, electrical engineers can study the impact of high-ramping wind speeds on power systems, as well as the impact of turbulence on the voltage and frequency of a small balancing authority area. This digest includes some examples of the capabilities of the FAST and MATLAB coupling, namely the effects of electrical faults on the blade moments.

Original languageAmerican English
Number of pages6
StatePublished - 2013
Event5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013 - Denver, CO, United States
Duration: 15 Sep 201319 Sep 2013


Conference5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013
Country/TerritoryUnited States
CityDenver, CO

Bibliographical note

See NREL/CP-5500-58962 for preprint

NREL Publication Number

  • NREL/CP-5D00-61236


  • aerodynamic control
  • electromechanical interaction
  • variable speed
  • wind power generation
  • wind turbine


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