These voltage source inverter applications include single phase UPS and switching power supplies. These have been mostly used in high-power static power topologies. In this article, we will explain how we can make a single phase voltage source inverter as well as how we choose the components with the help of the MATLAB Simulink model.
The output of the inverter is connected to the electrical grid through a filter inductor and an isolation transformer. Grid voltage and injected current are feedback to the processor. The control scheme implemented in the DSP processor will generate pulses necessary to run the inverter.
A single-phase inverter generates three levels at the output: +V DC, 0, and −V DC. These levels are obtained by connecting the capacitors in sequence to the AC side through the switches of each H-bridge inverter. The output phase voltage is synthesized by the addition of these levels.
The constant DC input voltage source is given to single phase H bridge inverter. The output of the inverter is connected to the electrical grid through a filter inductor and an isolation transformer. Grid voltage and injected current are feedback to the processor.
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