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AC booster for startup surge (similar to grid-tie)

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David Hess:

--- Quote from: maxwell3e10 on March 19, 2019, 06:22:11 pm ---Interesting challenge. Could one just build a 60 Hz resonant LC circuit to store enough energy? I had a similar problem (starting a furnace blower from an inverter) and ended up using a centrifugal V-belt clutch.
--- End quote ---

You could install a ferroresonant transformer.  Or a normal transformer which is undersized for the peak power would also limit the current.  I do not know how well either would work.

jonroger:
I did some more investigation/modeling on controls and it looks to me like micro-processor control would be fine in both continuous and discontinuous modes.    But it would require knowing output voltage, inductor current and load current - to properly calculate the amount of energy to transfer without using a slow adaptive algorithm.     Low frequency (eg, 5Khz) provides adequate time without too large of an inductor.

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