METHODS OF AN SYSTEMS FOR COORDINATED SYSTEM-WISE ENERGY BALANCING IN THE CONTROL OF BULK POWER TRANSFER

摘要

In order to achieve coordinated system-wide energy balancing in the control of bulk power transfer, the system known as the net interchange tie-line bias control is modified so as to reduce inadvertent interchange to zero while at the same time maintaining the average frequency of the interconnection as a whole at a predetermined value. This is accomplished by introducing into the control system of each area a coordinated modifying function corresponding with the quotient of the inadvertent interchange for each area measured over a span of time common to all areas divided by a constant, representative of a common corrective time period for all areas, together with an additional modifying factor representative of the time integral of frequency deviation over a predetermined time period common to all areas multiplied by a bias factor common to all areas.