Should the induction motors be directly connected to the grid?

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Nikola Makedonski

It depends on the tasks. AC-AC converters (or variable frequency drives) have the ability to operate within certain supply voltage limits. In microgrids, voltage levels are highly dependent on load variation. Also, VFD's have built-in protections (overvoltages, overcurrents and etc.). On the other hand, a VFD is a highly non-linear load that causes many problems, especially in microgrids.

Mansouri Adil

without converter: Limited control, Voltage, and frequency compatibility issues.

Bhupendra Desai

Yes via fuse with rated frequency and voltage….