My answer to this question is: absolutely not.
Because the high-voltage inverter is used to regulate the power supply frequency of the power supply system, to ensure that the power frequency of the grid is kept within the 50 Hz range.
The transformer is used to provide high-quality power supply for the majority of electricity users to ensure the normal operation of the user's electrical equipment.
I don't know if you are satisfied with this answer Can high-voltage inverters replace power transformers In principle, it should be possible, but in practice it is not practical, the inverter is not used to boost the transformer, there should also be varieties that can be used for circuits above 380V, if you want higher voltage, then there are also circuits that directly use 220V or 380V direct frequency conversion and then use voltage doubling to obtain high voltage circuits can be used.
The frequency converter is mainly used for load drive (such as motors), rarely used for power frequency conversion, and the function of the frequency converter is far more than limited to the frequency conversion itself, there are many additional functions, such as various types of protection, etc., if the frequency converter is used to obtain frequency conversion power supply, from an economic point of view is not advisable, it is recommended to use other frequency conversion circuits.
The operating voltage of the high-voltage inverter is 10kV.