Research Objective
To analyze frequency support from a 120 MW DFIG wind farm in an IEEE 14-bus test system using LFC, droop and virtual inertia response under load disturbance.
System Architecture
The system contains IEEE 14-bus network representation, conventional generation, DFIG wind farm, converter control, pitch or power reference loop, load disturbance block and system frequency measurement channel.
Simulation Methodology
The study injects load perturbations and compares frequency response with and without DFIG auxiliary LFC support. Controller parameters are evaluated through settling time, frequency nadir and active-power contribution.
Validation Scenarios
- IEEE 14-bus base operating point
- 120 MW DFIG wind farm integration case
- Load-frequency disturbance at selected buses
- Droop and virtual inertia support comparison
- Controller gain and settling-time sensitivity
Expected Graphs and Result Discussion
A complete result section should include the main waveforms, controller response, operating status and comparison tables needed for engineering thesis documentation. For this project, the important graph set includes:
- System frequency deviation
- DFIG active power response
- Rotor speed and converter signal
- Load disturbance profile
- LFC controller output and settling time
Thesis and Research Extension Ideas
Fuzzy PID, SMC, MPC, ANN tuning and optimization-based LFC can be added for research publication and comparative thesis chapters.