Publicación: ACTIVE AND REACTIVE POWER CONTROL DURING UNBALANCED GRID VOLTAGE IN PV SYSTEMS
Fecha
2016
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IEEE, ANUAL CONFRRENCE O THE INDUSTRIAL ELECYTRONIC SOCIETY
Resumen
THIS PAPER PRESENTS A CONTROL STRATEGY FOR A GRID CONNECTED PHOTOVOLTAIC (PV) SYSTEM AIMING TO REGULATE THE ACTIVE AND REACTIVE POWER INJECTED TO THE ELECTRIC SYSTEM DURING ASYMMETRICAL VOLTAGE FAULTS. THE ACTIVE POWER REFERENCE IS OBTAINED FROM A MAXIMUM POWER POINT TRACKING (MPPT) ALGORITHM. THE PROPOSED CONTROL STRATEGY GENERATES THE REQUIRED REFERENCE CURRENTS TO BE IMPOSED BY THE GRID-TIED INVERTER FROM THE DESIRED ACTIVE AND REACTIVE POWER AND THE MEASURED SUPPLY VOLTAGE. THE SCHEME IS VALIDATED FOR A SINGLE STAGE PV SYSTEM WHERE THE INVERTER CURRENTS ARE REGULATED VIA PREDICTIVE CONTROL. RESULTS SHOWING THE PERFORMANCE OF THE STRATEGY ARE PRESENTED DURING UNBALANCED VOLTAGE SAGS AND SWELLS.
