A Reevaluation Of The Normal Operating State Control Of The Power System Using Computer Control And System Theory*

The economic dispatch and load frequency control problem is approached as a design for digital computer control with system theoretic foundations from scratch but utilizes the ingenious insights of the past 30 years of practice. In Part I of the paper, an estimation process is proposed which gives a much tighter estimate of the area load excess (ALE) over the scheduled load than the traditional area control error (ACE) while it also provides an extrapolated es- timate into the future and an estimate of the turbine power at each unit. The latter is needed for unit control. Part II** introduces a three step algorithm to generate extrapolated target curves for the individual units to follow for economically matching the area load demand throughout the day.