Novel 3-phase phase-locked loop composed of adaptive linear combiner

This paper proposes a novel structure of 3-phase Phase-Locked Loop that is composed of Adaptive Linear Combiner and Proportional Integral control. The operational principle was investigated through theoretical approach. The performance was verified through computer simulations with MATLAB and experimental works with TMS320vc33 Digital Signal Processor board. The 3-phase Phase-Locked Loop shows accurate performance under the voltage disturbances such as sag, harmonics, and phaseangle jump.