Simplified Three-Phase Phase-Locked Loop Simulation Model Implementation

Developing simplified three-phase PLL simulation models using MATLAB components by retaining only essential operations (e.g., abc-dqz transformation computing only Vq), removing frequency feedback and auto-tuning modules. Constructs single-phase PLL computational models with simplified architecture while preserving necessary PI controllers. Validates dynamic/static performance for 45-65Hz input frequency variations. Simulates and analyzes locking behavior under three-phase inputs containing harmonics, imbalances, and DC offsets.