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Project Type: Research & Experimental Project
Tools: MATLAB/Simulink, d–q Modeling, Real-Time Control
Platform: 4 kW Laboratory Prototype, TI LAUNCHXL-F28379D
Application: Wind Energy Conversion & Grid Integration
This project developed and experimentally validated a control platform for a grid-connected Permanent Magnet Synchronous Generator (PMSG)-based wind energy conversion system (WECS) using a back-to-back voltage source converter topology.
The proposed control strategy combines sensorless Field-Oriented Control (FOC) for the machine-side converter with Voltage-Oriented Control (VOC) for the grid-side converter. The system incorporates maximum power point tracking (MPPT), DC-link voltage regulation, grid synchronization, and decoupled dq-current control.
The complete WECS was modeled in the dq reference frame, including wind-turbine aerodynamics, PMSG dynamics, converter control, and an LCL grid filter. Sensorless rotor-position estimation was implemented using flux-linkage-based and back-EMF-based PLL techniques for different operating-speed regions.
Key Results
Key Results
MATLAB/Simulink simulations validated system operation during startup, wind-speed variations, and steady-state conditions.
Achieved stable 300 V DC-link voltage within ±2%.
Demonstrated fast transient response and near-unity power factor.
Implemented the control system on a 4 kW laboratory prototype with real-time execution at 10 kHz.
Achieved successful grid synchronization and smooth power injection.
Experimental results demonstrated clean grid currents aligned with grid voltages.
The experimental platform provides a foundation for further development of active machine-side rectification, fault ride-through capabilities, advanced converter control, and grid-support functionalities for renewable-energy systems.
Type 4 Configurations with PMSG
ACI Motor Specifications (Wind Turbine Emulator)
The ACI motor emulates the wind turbine, driving the PMSG with mechanical torque. Its specifications are listed in Table 1.
PMSG Specifications
The PMSG serves as the generator, with specifications in Table 2
Back-to-Back Converter Model Validation
Voltage sensor design
PWM and ADC interface board
The 3D model of the interface board is illustrated in Figure 57. This board is designed to
interface the LAUNCHXL-F28379D microcontroller with the inverters, enabling control of two
2-level Voltage Source Inverters (VSIs) through 12 PWM signals. Additionally, it can read up
to 12 Analog-to-Digital Converter (ADC) channels for signal acquisition
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