Study on a performance matching method of wind rotor and generator based on energy transfer

Area of Science:

• Renewable Energy Systems
• Mechanical Engineering
• Control Systems

Background:

• Current research often overlooks the integrated performance of wind power systems, focusing instead on individual components like rotors and generators.
• Evaluating the combined characteristics of wind rotors and generators is crucial for understanding overall system output but is rarely addressed.

Purpose of the Study:

• To propose a novel performance matching method for wind rotors and generators based on energy transfer.
• To enable rapid assessment of the overall output characteristics of wind power systems.
• To develop a unified model for analyzing energy transfer within wind power systems.

Main Methods:

• A performance matching method based on energy transfer was developed for series-connected wind power system components.
• Transfer function models were established for individual components (wind rotor, generator) and the overall system.
• The proposed model was validated using a vertical axis wind power system test bench and MATLAB/Simulink simulations.

Main Results:

• The developed theoretical model demonstrated consistent trends with experimental data from wind tunnel tests.
• The error between the model's predicted system output and experimental results was found to be less than 6.5%.
• The method allows for quick prediction of overall system performance with known component characteristics.

Conclusions:

• The energy transfer-based performance matching method provides an effective means to evaluate overall wind power system output.
• This approach significantly reduces the need for complex and time-consuming physical testing of integrated systems.
• The validated model offers a reliable tool for predicting wind turbine and generator performance prior to system assembly.