Renewable energy inverter development using dSPACE DS1104 controller board

In this paper, the development of three-phase renewable energy inverter by using the dSPACE DS1104 digital signal processing controller board is presented. The board enables the MATLAB/Simulink model linking to the hardware. The standalone voltage source inverter´s control system which is implemented in the DS1104 board utilizes a digital proportional integral controller to stabilize its 50Hz sinusoidal ac output voltages. The board generates the sinusoidal pulse-width modulation control signals for the switching of the inverter´s power devices, insulated gate bipolar transistors. The simulation was performed in the Simulink/MATLAB environment and the PV output power is represented by a dc power supply. This simulation is then translated into the inverter prototype which was tested in the laboratory. The experimental results waveforms such as ac output voltages, current and total harmonic distortion are presented.