findpos.m

这是一个很适合研究和学习用的电力系统仿真软件

function idx = findpos(a)

global CPF

idx = [];
if ~a.n, return, end

if CPF.onlynegload
  idx = find(a.con(:,4) < 0);
  if isempty(idx)
    fm_disp('No negative load was found. Expect meaningless results.')
  end
elseif CPF.negload
  idx = [1:a.n]';
else
  idx = find(a.con(:,4) >= 0);
end