FPGA-based Space Vector Delta Modulation Current Controller for Grid connected Converters

• Published in: IECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society pp. 2301 - 2306
• Main Authors: Merai, M., Naouar, M. W., Slama-Belkhodja, I., Monmasson, E.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.10.2016
• Subjects: Aerospace electronics; Delta modulation; Delta modulation technique; Field programmable gate arrays; FPGA; Grid connected converters; Hysteresis; Sliding mode; Space vector current controller; Switches; Voltage control; Voltage measurement
• DOI: 10.1109/IECON.2016.7794101

This paper investigates the Field Programmable Gate Array (FPGA) implementation of a Space-Vector Delta Modulation Current Controller (SV-DMCC) for three-phase Grid connected Converters (GcCs). The proposed SV-DMCC is synthesized in the stationary reference frame (α,β) based on the sliding mode theory. The applied voltage vectors are accurately selected in order to reduce the current errors on α and β axis. The implementation of the SV-DMCC on FPGA was achieved with a very low execution time, which allowed a significant reduction of the current THD. Simulation and experimental results are presented and discussed in order to show the benefits of the investigated SV-DMCC compared to traditional delta modulation current controllers.