AC to DC converter

Thread Starter

AbdBaj

Joined Oct 10, 2023
16
Is there an Ac to Dc converter that converts 220V AC to high DC values. I would it to be able to produce 10kW. I couldn't find a model that satisfies these conditions.
 

LowQCab

Joined Nov 6, 2012
5,101
~10,000-Watts is a serious amount of Power,
are You sure that You know what You are asking for ?, and how much it will cost ?

What does the Output-Voltage need to be ?
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Thread Starter

AbdBaj

Joined Oct 10, 2023
16
~10,000-Watts is a serious amount of Power,
are You sure that You know what You are asking for ?, and how much it will cost ?

What does the Output-Voltage need to be ?
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I need to supply power to 6 brushless DC motors of a drone; with these rated values:
1699974966996.png
Max Current = 22.9A
Max Power = 1029W
 

Ian0

Joined Aug 7, 2020
13,131
What sort of a drone has an an-board 220V AC supply?
Won’t its range be limited to the length of the cable?

22A @ 1029W is only 44V. Not exactly a high DC voltage?
 

sghioto

Joined Dec 31, 2017
8,634
I think that's the total power of all 6 motors. The specs indicate 6 12S lipos, that's appx 44.4 volts per motor at max current of 3.8 amps
 

Thread Starter

AbdBaj

Joined Oct 10, 2023
16
What sort of a drone has an an-board 220V AC supply?
Won’t its range be limited to the length of the cable?

22A @ 1029W is only 44V. Not exactly a high DC voltage?
Tethered drones usually come large in size; at least larger than usual drones.
 

LowQCab

Joined Nov 6, 2012
5,101
Those are the Specifications for a single Motor.

It is quite expensive to create a Power-Supply that is capable of duplicating the performance
of a very High-Current-Li-Po-Battery.

I would recommend that You only use the recommended Battery-Pack to operate the Drone.
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Thread Starter

AbdBaj

Joined Oct 10, 2023
16
Those are the Specifications for a single Motor.

It is quite expensive to create a Power-Supply that is capable of duplicating the performance
of a very High-Current-Li-Po-Battery.

I would recommend that You only use the recommended Battery-Pack to operate the Drone.
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Thank you for your advice. The problem is that I need to design a tethered drone powering system that as efficient as possible. Do you have any advices? Do you recommend that I find a better motor?
 

LowQCab

Joined Nov 6, 2012
5,101
Go to the "T-Motor" website.
They provide extensive performance Graphs for all of their extensive Motor offerings.

You need to calculate many factors .......
Complete weight of the Drone with all accessories, including the full weight of the "Tethering-Cable".
The Maximum-Generated-Lift in Pounds, MUST BE at least 1.5X the full Calculated-Weight to maintain Control.
Diameter of the Props that You intend to use.
The Maximum-Vertical-Acceleration-Rate that You will expect.
The amount of Noise that can be tolerated, ( larger/slower Props are much quieter ).

The Power-Supply must be made in 2 sections.
The Motor-Power-Supply must be Wired separately from the Controls-Power-Supply to
prevent Motor-Electrical-Noise from interfering with the Flight-Control-Computer.
The alternative to this is to install the usual type, and size, of Li-Po-Battery on the Drone.

If this Drone is to be run for extended periods, ( more than ~5-minutes ),
the Motor-ESCs will have to be seriously up-graded from the usual "Hobbyist" versions
to over-rated, Heavy-Duty, Commercial versions to prevent overheating and failure.
APD Australia

The Props must also be physically shielded to insure against Bodily-Injury if
the Drone comes into contact with People or Property.
A Drone can easily cut through skin and shred it.
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Audioguru again

Joined Oct 21, 2019
6,826
He does not want to produce 10kW. instead maybe he want to use motors that are rated for 200Kv which is 200RPM per Volt.
The motors are rated for a 12S Li-PO battery which is 50.4V when fully charged.

The motor spec sheet shows a 47.9V battery producing 17.88A and the throttle at 100% when driving a propeller from a 40A max Electric Speed Controller (ESC). That is 47.9V x 17.88A= 856.5W for each motor.

I did not look-up how much voltage is needed by the ESC.
 

MisterBill2

Joined Jan 23, 2018
27,504
This thread is quite similar to one that popped up a few weeks ago. Why does an individual with limited technical resources need to design the power system for a heavy duty drone, tethered or otherwise?? What is the purpose of such a drone??
 
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