AGC Parameter Determination for an Oil Facility Electric System

It is necessary to accurately estimate parameters to have a better prediction on the response of a generator under different operating conditions. Since automatic generation control (AGC) is closely related to the real power and frequency of the unit, the dynamic parameters that are required by a standard AGC function are determined for the electric system of an oil facility. Speed droop characteristics, governor deadbands, and generation ramp rates are evaluated using field tests on thermal units. Frequency bias for the area control error calculation is also presented. Test procedures for each parameter calculation are described in detail for thermal units of 1, 3, and 3.75 MW installed at Ecuadorian oil well facilities. Test results for these units demonstrate the practicability of the proposed test procedures.