Calculation of the correction power

During the measuring period the average power

P limit = agreed limit

can be obtained. Over the measuring period T this power equals

E limit = P limit * T

By comparing this power with the expected energy E prog (T) at the end of the period, the de- and exceedance of the agreed limit

E corr = E prog (T) - E limit

can be assessed. The de-/ or exceedance can be balanced by carrying out the corresponding switchings.

Minding that at time t only T-t balance time is available. Therewith a large correction power

P corr (t) = E corr / (T-t)

is necessary.