. The branch series losses and line charging reactive injections are handled separately by get_losses(). See help get_losses for details. Put the attached display_power_balance.m in your MATLAB path and try the following. Here’s what I get …>> load test_n
(reactive load added by hand - the summary was rounding it to 0)
However, when analyzing it "by hand" via *powerflow.bus*, we are not
understanding the differences:
get_losses gives us the active and reactive losses via
*Active Losses* /sum(abs(real(losses)))/0.3
, but in our network, we have:
>
> Sum of the GS Shunt Conductances = 0.0865 MW
> Difference between calculated losses vs. get_losses = 0.095 MW (that were
> supposedly due to the missing GS values)
> Resulting a difference of 0.0085 MW (even this is different from the -0.1 MW
> active
of the GS Shunt Conductances = *0.0865 MW*
Difference between calculated losses vs. get_losses = *0.095 MW *(that
were supposedly due to the missing GS values)
Resulting a difference of *0.0085 MW *(even this is different from the
*-0.1 MW* active shunt injections).
INESC TEC
*José Paulos*
Centro
41 (1 REF | 1 PV)
> % number of branches: 41 (8 transformers)
> % number of loads: 21 (including Pd/Qd = 0)
> % number of generators:2
> % number of capacitors: 2
>
> We use get_lossses, in this case:
>
> %%% compute the losses
of branches: 41 (8 transformers)
% number of loads: 21 (including Pd/Qd = 0)
% number of generators: 2
% number of capacitors: 2
We use get_lossses, in this case:
%%% *compute the losses*
losses = get_losses(powerflow);
%%% *the active losses
Actually, dloss_dV includes partials with respect to both voltage angle and
voltage magnitude. But, yes, always check the help for the function in question
by typing, for example, help get_losses, or by checking the online function
reference Shri mentioned.
Ray
> On Jul 15, 2017, at
ctions. Suggest going through this first and then
sending questions to the list if something is not clear. Here’s the reference
for the
get_losses<http://www.pserc.cornell.edu/matpower/docs/ref/matpower6.0/get_losses.html>
function.
Shri
From: <bounce-121659003-73493...@list.cornell
Hello everyone, I am trying to use get_losses command and it's quite easy
but i am not getting one thing in that command,
mpc=loadcase(case5);
results=runpf(mpc);
[loss,fchg,tchg,dloss_dv]=get_losses(results);
what is 'dloss_dv' given means??
