A dSPACE-based implementation of ANFIS and predictive current control for a single phase boost power factor...

Area of Science:

• Electrical Engineering
• Power Electronics
• Control Systems

Background:

• AC/DC boost rectifiers face challenges in power quality and energy efficiency.
• Maintaining a high power factor and low harmonic distortion is crucial for grid stability.

Purpose of the Study:

• To present an innovative control scheme for AC/DC boost rectifiers.
• To enhance power factor and reduce total harmonic distortion (THD).
• To improve overall energy efficiency and grid stability.

Main Methods:

• Integration of an adaptive neuro-fuzzy inference system (ANFIS) with predictive current control.
• Rigorous simulation and validation using a 500 W laboratory prototype with a dSPACE ds1104 controller.
• Analysis of steady-state and transient responses under various operating conditions.

Main Results:

• Achieved a total harmonic distortion (THD) of 3.5%, below the IEEE-519 standard (5%).
• Reached a power factor of 0.990, indicating near-unity power factor operation.
• Demonstrated robust transient response with minimal output voltage overshoot/undershoot (18 V/20 V) and rapid response time (0.2 s).

Conclusions:

• The proposed ANFIS-integrated predictive control scheme offers a superior solution for power factor correction in AC/DC boost rectifiers.
• The system significantly enhances power quality and energy efficiency, outperforming conventional methods.
• This approach promises substantial energy savings and improved grid stability, setting new benchmarks in power electronics control.