Psti and Plti values are affected by the transposition of measured Pst and Plt from low voltage (LV) to high voltage (HV) due to the nature of power-line flicker, which is caused by rapid voltage fluctuations. These fluctuations occur because of the changing load current on the power supply, and they are not significantly mitigated during the LV to HV transformation. The discussion emphasizes that flicker is a multi-cycle effect, and there is no mechanism to store energy in the step-up transformer to reduce it. To effectively minimize flicker from static inverters, a solution akin to a synchronous motor with a heavy flywheel would be necessary. Understanding these dynamics is crucial for managing power quality in energy distribution networks.
