Electronics > Power/Renewable Energy/EV's

Ecoflow failure

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IanB:
Nice follow-up video here:

langwadt:

--- Quote from: NiHaoMike on December 01, 2022, 01:13:42 pm ---A particularly smart inverter can dynamically reduce the output voltage and frequency to ease starting of motors.

--- End quote ---

but that could have other side effects, some devices might not like the reduced voltage or frequency

if you computers reset when you start a motor it is not much of an UPS

uer166:

--- Quote from: uer166 on November 29, 2022, 11:00:25 pm ---massive tradeoff for circulating reactive current at low-load. I'm personally okay with this design, it's a trade-off

--- End quote ---

I like that he did an actual test for the above and demonstrated it. Adding a X-cap across the outputs reduces the ringing substantially, but he gets 1.5A of circulating current, not fun for standby!

NiHaoMike:

--- Quote from: uer166 on December 01, 2022, 08:29:46 pm ---Adding a X-cap across the outputs reduces the ringing substantially, but he gets 1.5A of circulating current, not fun for standby!

--- End quote ---
So then add a triac/SSR to only switch it in when needed.

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