[Vo]:Re: Emergency Electric Curtailment event in Texas / more bull from Lutz

[Michel Jullian]

Oops I meant 41% (root 2 - 1), sorry.

Michel

----- Original Message ----- 
From: "Michel Jullian" <[EMAIL PROTECTED]>
To: <vortex-l@eskimo.com>
Sent: Wednesday, March 26, 2008 10:23 PM
Subject: [Vo]:Re: Emergency Electric Curtailment event in Texas / more bull 
from Lutz


Is there anything in the grid proper (i.e. excluding converters at supply and 
receiving ends) that makes it inherently AC? If not, it would make sense to 
convert the whole system to DC, if only because root(2) more rms voltage would 
be allowed, i.e. 57% more power could be carried by the same lines for the same 
allowed current i.e. the same allowed ohmic losses.

Michel

----- Original Message ----- 
From: "Robin van Spaandonk" <[EMAIL PROTECTED]>
To: <vortex-l@eskimo.com>
Sent: Wednesday, March 26, 2008 9:30 PM
Subject: Re: [Vo]:Emergency Electric Curtailment event in Texas / more bull 
from Lutz


In reply to  Mike Carrell's message of Wed, 26 Mar 2008 09:48:25 -0400:
Hi,
[snip]
>What is fundamentally different is that in the conventional system, the AC 
>rotating machines are locked in synchronism with the 60 Hz grid, and if any 
>one falls out of synch, destruction will follow. With wind turbines this 
>need not happen.
[snip]
If the national grid were DC iso AC, then synchronization problems would be
inherently non-existent. Any form of power source could contribute, with
conversion from AC to DC taking place locally on the supply end, and conversion
from DC to AC taking place at substations on the receiving end. It would also
have the advantage of more efficient long distance transport.

Of course, it would no longer provide 60 Hz synchronization of clocks, but this
is easily overcome by allowing the substations to use crystal controlled
oscillators, synchronized via the Internet.

Regards,

Robin van Spaandonk

The shrub is a plant.