Direct Control of DFIG Wind Energy System – MATLAB Simulink

Project Objective

This research page presents Direct Control of DFIG Wind Energy System – MATLAB Simulink as a structured Wind Energy Conversion Systems simulation project within Renewable Energy & Smart Grid. The objective is to explain the model, demonstrate the local research video and support scholars with a clear workflow for thesis, paper implementation, presentation and academic discussion.

The project provides a structured starting point for research comparisons between direct control and conventional vector-control approaches.

System Architecture

• Wind turbine and aerodynamic power model
• Drive train and doubly-fed induction generator
• Rotor-side converter and grid-side converter
• DC-link capacitor and grid filter
• Measurement, reference and direct-control logic
• Grid connection, transformer and load interface

MATLAB Simulink Methodology

1. Define turbine, DFIG, converter, DC-link and grid parameters.
2. Measure rotor speed, stator/rotor quantities, active power, reactive power and DC-link voltage.
3. Generate direct control commands from power, torque, flux or current errors according to the selected control structure.
4. Apply converter switching limits and protection logic.
5. Evaluate the response under variable wind, reference changes and grid disturbances.

Recommended Simulation Cases

• Step and ramp changes in wind speed
• Active and reactive power reference changes
• Generator-speed and torque transients
• Grid-voltage disturbance and recovery
• Parameter variation and robustness study

Expected Outputs

• Wind speed, turbine speed and generator rotor speed
• Mechanical torque and electromagnetic torque
• Stator and rotor currents
• Active power, reactive power and power factor
• DC-link voltage and converter switching commands
• Tracking error, settling time and disturbance recovery

Research Extensions

• Direct power control versus vector control comparison
• Fuzzy, ANN or model-predictive supervisory control
• Low-voltage ride-through and fault-current limiting
• Virtual inertia and frequency-support operation
• PSO/GWO tuning and hardware-in-the-loop validation

Applications

• Wind-energy PhD and master’s research
• Power electronics and electrical-machine projects
• Renewable-grid integration studies
• DFIG converter-control FYP topics
• Control-algorithm benchmarking in MATLAB Simulink

Suggested Report Structure

Include the research problem, literature review, governing equations, model block diagram, parameter table, controller design, test scenarios, comparative graphs, discussion, limitations, novelty and future scope.