AN APPARATUS OF CURRENT CONTROL FOR HARMONIC COMPENSATION IN GRID CONNECTED INVERTER

摘要

Including a basic component controller and a digital lock-in amplifier that extracts the phase of the grid voltage from the grid voltage to control the fundamental component of the grid current, generates a reference signal independent of the phase of the grid voltage, and uses the reference signal Disclosed is a current control device for harmonic compensation of a grid-linked inverter including a multiple harmonic control unit for extracting and compensating harmonics included in the grid current.