schematically in Fig 14. The system is connected directly to the domestic electrical system (low voltage). As we consider only domestic loads, we need not isolate our test system from the utility (high voltage) by any transformer. For system identification processes, waveforms are collected by an oscilloscope and transmitted to a computer for batch processing of voltage and current waveforms.
Fig. 14. Experimental setup
Fig. 15. An inverter modeling using system identification process
Major steps in experimentation, analysis and system identifications are composed of Testing scenarios of six steady state conditions and two transient conditions are carried out on the inverter, from collected data from experiments, voltage and current waveform data are divided in two groups to estimate models and to validate models previously mentioned.