CCBlade Documentation: Release 0.1.0

@inproceedings{Ning2013CCBladeDR,
  title={CCBlade Documentation: Release 0.1.0},
  author={S. Andrew Ning},
  year={2013}
}
  • S. Ning
  • Published 1 September 2013
  • Physics
CCBlade predicts aerodynamic loading of wind turbine blades using blade element momentum (BEM) theory. CC stands for continuity and convergence. CCBlade was developed primarily for use in gradient-based optimization applications where C1 and robust convergence are essential. 

Figures and Tables from this paper

Improving the FLORIS wind plant model for compatibility with gradient-based optimization

Three case studies demonstrate that using exact gradients with gradient-based optimization reduces the number of function calls by several orders of magnitude and improves convergence behavior, allowing gradient- based optimization algorithms used with the FLORIS model to more reliably find better solutions to wind farm optimization problems.

Design and analysis of a spatially heterogeneous wake

Methods of turbine wake modeling are being developed to more accurately account for spatially variant atmospheric conditions within wind farms. Most current wake modeling utilities are designed to

Design and analysis of a wake model for spatially heterogeneous flow

Abstract. Methods of turbine wake modeling are being developed to more accurately account for spatially variant atmospheric conditions within wind farms. Most current wake modeling utilities are

A Reference Open-Source Controller for Fixed and Floating Offshore Wind Turbines

The framework and theoretical basis for the ROSCO controller modules and generic tuning processes are provided and results demonstrate ROSCO's peak shaving routine to reduce maximum rotor thrusts compared to the NREL 5-MW reference wind turbine controller on the land-based turbine and to reducemaximum platform pitch angles when using the platform feedback routine instead of a more traditional low-bandwidth controller.

Wind farm control ‐ Part I: A review on control system concepts and structures

A comprehensive review of the intense research conducted in this area over the last 10 years is presented and contributes to the existing reviews on the area by providing an elegant classification between model testing and control approaches.

An Update to the National Renewable Energy Laboratory Baseline Wind Turbine Controller

The National Renewable Energy Laboratory’s 5-MW wind turbine model is well established as an industry standard and is often used as a comparison model, or a model on which to build upon. Though

References

SHOWING 1-4 OF 4 REFERENCES

A simple solution method for the blade element momentum equations with guaranteed convergence

An appropriate arrangement of the equation and corresponding bounds for the one-dimensional search—intervals that bracket the solution and over which the function is well-behaved are discussed, resulting in a methodology for solving the blade element momentum equations with guaranteed convergence and at a superlinear rate.

New Empirical Relationship between Thrust Coefficient and Induction Factor for the Turbulent Windmill State

Wind turbines sometimes experience the turbulent windmill state during startup or shutdown. This rarely happens during normal operation, so it has little effect on power curves or energy production.

An Algorithm with Guaranteed Convergence for Finding a Zero of a Function

An algorithm is presented for finding a zero of a function which changes sign in a given interval using linear interpolation and inverse quadratic interpolation with bisection and ALGOL 60 procedures.

Airplane Propellers, Vol

  • 4. Springer Verlag.
  • 1935