On Apr 12, 3:07*am, harry wrote:
On Apr 11, 5:44*pm, Jim Wilkins wrote:

On Apr 11, 10:28*am, Home Guy wrote:

...
Unless your invertors were set to operate at a slightly higher output
voltage. *Even just a few volts differential between the mains voltage
and the invertor output would mean that you could push current out into
the grid, and by doing that raise the local grid voltage slightly.-

This explains a lot about inverter technology, though not whether they
use a higher voltage, a leading phase angle or both to force power
into the line:http://www.solarpanelsplus.com/solar...r-Inverters-Wo...

jsw

Leading and lagging phase angles is nothing whatever to do with the
matter.
This refers to *phase angle between the current and the voltage
driving it.
Inductive circuits are always lagging, capacitive circuits are always
leading, while resistive circuits are in phase.
See also power factor.http://en.wikipedia.org/wiki/Power_factor
In practice the grid runs at a lagging power factor due to all the
motors connected.
Leading power factor systems are inherently unstable.

This explains generator output regulation by varying voltage:
http://www.basler.com/downloads/VR_parallel.pdf

and this the effect on current in or out of a synchronous generator
caused by varying the leading/lagging phase angle between the internal
magnetic field and the line voltage:
http://nptel.iitm.ac.in/courses/IIT-...II/pdf/2_3.pdf

jsw