Hi folks I'm a battery engineer so I live my life in dc the most ac i touch is putting an off the shelf inverter with a battery for grid tied storage. A customer came to me with a question about a potential project that would be only 150w most of the time but will need to be able to handle spikes of 10kw for only 1ms. It seems crazy to me to size an inverter for 10kw when 99% of the time it is only running at 150w i would also think the efficiency would be ass when in low power but maybe im wrong.
In dc I have built plenty of batteries sized for low power with a capacitor for short duration spikes, can i just do that on ac? I know some about motor starting capacitors but have not found good places to learn more on that. Could any of yall point me in the right direction to learn about handling ac transient power needs? I have really only found stuff about surge suppression but i think i need the opposite, instead of preventing voltage spikes i need to prevent the voltage collapsing under sudden high load.
Any thoughts would be appreciated thanks folks.