Week 03/04

Hardware Implementation of the filter:

• The designed optimum filter was implemented with the inverter circuit.

• PCB circuit was mounted on a heat sink and the supply connections were given.

• The overall inverter setup was tested with optimized inductor and capacitor values.

Linverter_side = Lgrid_side = 1.25mH Cfilter = 8uF

• Experimental results were compared with the simulation results in the previous semester.

• Two setups were created to work in 5kHz and 10kHz switching frequencies.

• Reviewed the optimization procedure done in the previous semester and used the developed spreadsheet to calculate the new inductor and capacitor values for different specifications. The developed spreadsheet is given below.