HIS PAPER PROPOSES A TOOL FOR THE EVALUATION OF ALGORITHMS FOR GRID SYNCHRONIZATION USING THE DELFINO LAUNCHPAD TMS320F28379D PLATFORM, WITH THE OBJECTIVE OF SUPPORTING DEVELOPERS AND RESEARCHERS IN THE VALIDATION BEFORE THEIR TEST IN GRID-CONNECTED EQUIPMENT. THE PROPOSAL USES THE DIGITAL TO ANALOG OUTPUTS AVAILABLE IN THE LAUNCHPAD TO EMULATE THE GRID VOLTAGE, PROVIDING VARIATIONS IN AMPLITUDE, FREQUENCY, AND PHASE AND AT THE SAME TIME, PROVIDING RELEVANT SIGNALS TO EVALUATE THE PERFORMANCE OF THE TESTED ALGORITHM IN A SCOPE. THE WORK PRESENTS (I) A GLOBAL CLASSIFICATION OF SYNCHRONIZATION TECHNIQUES AND EVALUATION SCENARIOS, (II) THE TOOL CHARACTERISTICS AND ITS IMPLEMENTATION METHODOLOGY, (III) A STUDY CASE AND ITS RESULTS WHERE TWO SYNCHRONIZATION TECHNIQUES ARE IMPLEMENTED IN AN OPEN-SOURCE DEVICE, AND (IV) FINAL DISCUSSIONS OF THE TOOL AND THE RESULT. © 2023 IEEE.

AC-DC POWER CONVERSION IS AN ESSENTIAL PROCESS IN THE INDUSTRIAL AREA AT MEDIUM/HIGH VOLTAGE LEVELS FOR AC MOTOR DRIVES, CONVEYOR BELT SYSTEMS, ROLLING MILLS, OR OTHERS. THE MULTILEVEL CONVERTERS ALLOW US TO WORK AT THE VOLTAGE LEVELS MENTIONED AND GIVE US A LOW HARMONIC CONTENT IN THE AC SIDE OF THE SYSTEM. HOWEVER, THESE POWER CONVERSION SYSTEMS CONSIST IN THEIR TOPOLOGY OF AN INPUT TRANSFORMER, WHICH IS SENSITIVE TO LOW ORDER HARMONIC CURRENTS, GENERATING SATURATION AND INCREASED LOSSES. THIS WORK PROPOSES A MODULATION SCHEME CALLED FEEDBACK QUANTIZER, APPLIED TO MULTI-CELL ACTIVE FRONT-END RECTIFIERS, AIMING TO OBTAIN A FOCUSED MITIGATION OF LOW-FREQUENCY CURRENT HARMONICS OF THE POWER CELL. FURTHERMORE, TO ENSURE THE STABILITY OF THE DC VOLTAGE OF EACH POWER CELL, A CONTROL STRATEGY CONSISTING OF NONLINEAR CONTROL, A FIRST-ORDER FILTER TO THE DC VOLTAGE REFERENCE, AND A PI CONTROL WILL ENSURE STABILITY AND ZERO STEADY-STATE ERROR AT STEP INPUT. THE SIMULATED RESULTS SHOW THE CORRECT OPERATION OF THE PROPOSED SCHEME.