Jun 2016
Electricity Transmission
WI-POD- Wind turbine control Interaction with Power Oscillation Damping control approaches.
Jun 2016
Jun 2018
National Grid Electricity System Operator and National Grid Electricity Transmission
Ben Marshall
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Network Innovation Allowance
Harmonics, Harmonics and Electricity Transmission Networks
The scope of the project is to evaluate the impact of the POD control on the existing control and mechanical performance of the offshore wind turbines. It includes developing appropriate model for the interactions between the offshore wind turbine and grid using Matlab Simulink based simulation package. The model will be validated using available simulation and test data that can be obtained from other sources. A POD will be incorporated to suppress the relevant oscillation frequency of this model. This investigation will then be extended to assess possible impact of POD control actions on the existing control systems and mechanical performance of the turbines.

The main objective of the project is to investigate if there are unfavourable interactions between the POD power modulation actions on offshore wind turbine control performance. Should such interactions exist, this project will further detail and suggest where available suitable mitigations to these issues. A final report comprising these findings will be made available to inform further developers in meeting the requirements as recorded within their bilateral agreements. In a longer term, the developed model for wind turbine-gird interactions could be applied to explore control strategy options including their integration with HVDC and energy storage connections and their broader ranges of interaction with power systems.

  1. Successful development of an offshore wind turbine model based upon the NREL 5 MW wind turbine representation and an equivalent grid model including offshore connections.

  2. Successful integration of the above 2 models to enable simulation studies for identifications of oscillation modes.

  3. Complete sensitivity studies to assess the implications of oscillation modes under various scenarios (different structural parameters of the turbines, various turbulence/wave situations and system fault etc).

  4. Successful incorporation of a POD to the wind turbine-grid model in (2) to improve damping of power oscillation.

  5. Successful evaluation of POD’s impact on the control systems and mech. performance of offshore wind turbines.

  6. Biannual milestone progress reporting with interim and final reports delivered at the end of the 1st and 2nd year.

  7. Successful dissemination of acquired knowledge to the relevant industry sectors, including the way via the National Grid System Operability Framework (SOF) Workshop.

  8. Publication of relevant papers at leading journals and presentations at major international conferences.