Towards new industrial software for advanced wind turbine control
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Transcript of Towards new industrial software for advanced wind turbine control
www.ecn.nl
Towards new industrial software for advanced wind turbine control
EWEC 2011, Brussels, March 2011Stoyan Kanev
2 19-04-23
Background
• Advanced wind turbine control can achieve further reduction of the cost of wind energy by:‑ Maximizing power production‑ Minimizing ultimate and fatigue loads (blades,
drivetrain, nacelle, tower)Weight reductionUpscalingDecreased maintenance costs (higher
availability)
3 19-04-23
Background
• Present commercial controller ECN-CDT is designed to minimize blade pitch excursions, featuring:+Reduced pitch actuator loading,‑ Power losses (can be rather large!)‑ No fatigue load reduction on blades/tower
• Project goal: by allowing more actuator activity, achieve increased power production and reduced loads using advanced control
• Partners: DotX, ECN, XEMC-Darwind, MPS
4 19-04-23
Overview of NCM tool
• NCM wind turbine model for control purposes
• Turbine state and wind estimator
• NCM controller
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NCM turbine model
• Structural dynamics: first modes of the drive-train and the tower dynamics in fore-aft and sideward direction
• Aerodynamics: ‑ thrust and torque coefficients defined per blade‑ blade effective forces and torques‑ dynamic inflow effects by lead-lag filtering of
pitch angle before entering CQ and CT
•Wind modelling: ‑ blade-effective winds (turbulence/rot. sampling)‑ deterministic wind effects
6 19-04-23
Results: NCM model vs. Phatas (XV90)
7 19-04-23
NCM observer
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Results: NCM observer
• Data from Phatas XV90 simulation with ECN-CDT
• Simulated load cases
9 19-04-23
Results: NCM observer
10 19-04-23
Results: NCM baseline vs. CDT controller
Preliminary results with
• Simulations in NCM environment
• XV90 model
• DLC 1.2 (NTM, wind speeds 9, 12, 15, 20 m/s)
• Comparison b/n ‑ ECN-CDT, and‑ NCM baseline controller
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Results: NCM baseline vs. CDT controller
12 19-04-23
Results: NCM baseline vs. CDT controller
-6,5%
-19%
13 19-04-23
Conclusions
• Starting point in NCM controller development is power production quality and loads reduction
• Status NCM baseline controller: 90% ready; drivetrain damping, IPC, and actuator constraints handling yet to be implemented [02/2010]
• Next: ‑ C-code, coupling to aeroelastic tools via DLLs‑ Loadset computations with Phatas and Bladed‑ Prototype implementation