Sensorless control strategy for three-phase grid side converter

Autor: Fatma Ben Youssef, Lassaad Sbita
Rok vydání: 2017
Předmět:
Zdroj: 2017 International Conference on Green Energy Conversion Systems (GECS).
DOI: 10.1109/gecs.2017.8066259
Popis: This paper develops a grid voltage sensor-less control strategy of Voltage Source Inverter (VSI) used for photovoltaic application. Virtual-Flux (VF) estimator is investigated to estimate the three-phase grid voltages. A second order generalized integrator-quadrature signal generation SOGI-QSG and Frequency Loocked Loop FLL is achieved to ensure the grid synchronisation and to estimate the grid voltages quantities which is added to the control strategy. Analytical and simulation results prove the efficiency of the proposed sensor-less control strategy.
Databáze: OpenAIRE