Acronym:

Potvrda koncepta smanjenja vibracija generatora i buke velikih vjetroagregata naprednim upravljanjem pretvarača snage 

From: 2016-06-01 To: 2017-05-31 (Completed)

BICRO 

PoC 

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prof. dr. sc. Nedjeljko Perić

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The project investigates technical realization possibility for reduction of common torque and speed oscillations of wind turbine generator that occur due to variable air-gap, non-homogenous magnetic material of stator and rotor, production imperfections, inherent or fault-induced asymmetries and other characteristics caused by real machine physics and geometry, all of which are summed into a the term anisotropy. With compensation of oscillations by forming the corresponding power converter voltage references, the concept significantly reduces generator vibrations that are further reflected on the whole wind turbine in the form of expressed noise and enhanced structural loads. Initial theoretical basis is gathered and formed as side-effect learnings during the research and development of wind turbine generator fault diagnostics and autonomous fault-suppressing reaction as part of project MONGS - Monitoring of Wind Turbine Generator Systems (FP7 SEE-ERA.net Plus call), experimentally validated within the project Proof of Concept for Wind Turbine Generator Fault-tolerant Control (BICRO PoC5 programme) and finally protected as the patent US 8,928,165 B2. The project encompasses the following activities: (1) identification and modeling of generator anisotropy, (2) experimental verification of control concept for generator anisotropy compensation, (3) concept extension for all common wind turbine generator types, (4) protection of potentially emerged intellectual property, and (5) analysis of existing similar solutions in the area and establishment of commercialization strategies. Proof of concept will determine technical possibilities of identification and compensation of wind turbine generator anisotropy and level of reduction of corresponding negative effects by using the power converter control signals. Required modifications to the existing conventional control system will be investigated for modular design and implementation to already existing wind turbines, as well as the new ones.