Grid and Wind Transient Ride Through Assessment of Type-5 Synchronous Wind Turbine

Hussain, Tanveer [Idaho National Laboratory]; Shafiul Alam, S M [Idaho National Laboratory] (ORCID:0000000262769443); Gallego Calderon, Juan Felipe [Idaho National Laboratory]

DOE OSTI · 3378610

Grid and Wind Transient Ride Through Assessment of Type-5 Synchronous Wind Turbine

Hussain, Tanveer [Idaho National Laboratory]·Shafiul Alam, S M [Idaho National Laboratory] (ORCID:0000000262769443)·Gallego Calderon, Juan Felipe [Idaho National Laboratory]

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Abstract

The integration of the inverter-based renewable energy resources is increasing and replacing conventional synchronous generators in the evolving bulk power system (BPS), impacting the system inertia along the way. Also, the limited over-current capability of power electronic converters continues to deteriorate the grid strength of the evolving power systems. Type-5 wind turbines have the potential to mitigate these problems because this configuration interfaces with the grid through a synchronous generator; hence, its operation and consequent grid impacts might mimic the conventional synchronous generator. The drivetrain of this type of turbines, however, is different from the more common Type-3 and Type-4 turbines. A hydraulic torque converter and gearbox with torque limiting feature are integral parts of a Type-5 wind turbine drivetrain, to isolate the wind speed variations at the wind turbine rotor from the grid connected generator side. This supports the synchronous operation of the generator. However, high fidelity models of Type-5 wind turbine drivetrain including these core components are not openly and widely available for grid integration and transient stability studies. Moreover, Type-5 turbines are not commonly deployed and hence its power generation and frequency stability characteristics are not widely publicized. This hinders appropriate assessment of Type-5 wind power plant's contribution to bulk grid resilience. This work provides transient stability assessment of a standalone Type-5 wind turbine. Normal operation and grid transient studies are performed to see the step load change and wind speed disturbance impacts on the Type-5 drivetrain and generation dispatch. Preliminary results show that Type-5 wind turbines can support load changes of between 0.6 p.u to 1.15 p.u. Beyond this point, the synchronization of the generator starts to deviate from its set point.

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BibTeX RIS

Hussain, Tanveer [Idaho National Laboratory], Shafiul Alam, S M [Idaho National Laboratory] (ORCID:0000000262769443), Gallego Calderon, Juan Felipe [Idaho National Laboratory]. 2026-03-25. Grid and Wind Transient Ride Through Assessment of Type-5 Synchronous Wind Turbine. https://www.osti.gov/biblio/3378610

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