Area Information: Options

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Report Limit Violations

If checked, limit violations for this area are reported. Limits violations are reported in the Limit Violations List.

Generation AGC Values

These fields indicate the total available AGC range for all the generators in the area that are specified as being on AGC and have nonzero participation factors. That is, these fields show the total amount the generation in the area that can be increased or decreased using the presently on-line generation. This may be referred to as the spinning reserve. The generator status, AGC status, and participation factor can be changed on the Generator Records Display.

Load MW Multiplier Value

This value is used for scaling the area MW load. The base load remains unchanged.

Load MVAR Multiplier

This value is used for scaling the area MVAR load. The base load remains unchanged.

Automatic Control Options

The Automatic Control Options section provides a convenient mechanism to enable or disable automatic control of switched shunts and transformers in the area.

This section also provides a check box for setting if the generators in the area should enforce their Generator MW Limits or not. Typically this should be checked. Note that even if unchecked, the OPF routine end Economic Dispatch will ignore this setting and will always enforce generator MW limits during an OPF solution. Settings for enforcing MW limits at individual generators and globally for the case will also be ignored if using OPF or Economic Dispatch control.

Include Loss Penalty Factors in ED

If this box is unchecked, then the economic dispatch for the area is calculated assuming that the area is lossless. Otherwise, the solution will incorporate losses when computing the economic dispatch. The penalty factors gauge the sensitivity of the area’s losses to changing injection at specific generators. The option to calculate loss penalty factors is relevant only when the area operates according to Economic Dispatch Control. Usually, if the system’s cost curves are relatively flat, the inclusion of losses in the solution will not have much of an effect on the dispatch.

Economic Dispatch Lambda

The lambda value calculated during the economic dispatch computation. This field is valid only when the area is on economic dispatch control.