See Also
The Generator Maximum MW display can be opened from the Modeling group of the Contingency Analysis dialog Options page. This display provides a specialized generator display with specific fields used for setting the post-contingency maximum MW response of individual generators.
Use the CTG Max Response MWfield for entering the contingency maximum response. During the post-contingency power flow solution, a user may enter a MW amount specifying the maximum amount of generator response from a generator. By default, these values are blank. If you enter a value in this column, the generator response will be limited to this absolute MW response (response may be either an increase or a decrease). Regardless of the response settings, a generator will not respond unless its AGC field is set to YES or any Generator Post-Contingency AGC conditions are set such that the generator will be on AGC post-contingency.
The maximum MW response for a given generator will only be enforced if enforcing generator MW limits for that generator. The maximum MW response is implemented by adjusting the generator minimum and maximum limits in order to limit the response, e.g. (New Max MW) = (Present MW) + (Generator Max MW Response) and (New Min MW) = (Present MW) - (Generator Max MW Response). Therefore, the maximum MW response will only be implemented if a generator's limits are enforced.
Generator maximum MW responses will be enforced, as long as generator MW limits are also enforced, when using all contingency calculation methods including the Full Power Flow method with the power flow in either AC or DC mode and the linearized lossless DC methods.
Note: The user may also add a column called CTG Max Response % to the generator display. When entering data in this column, the CTG Max Response MW values will be set at a respective percent of the maximum MW output of the generator. If a generator’s maximum MW output is less than or equal to zero, then the Maximum Response will always be set to zero.