Quick concept related question, I have a system with 5 generation units and I have to find the maximum demand that the system can support and still be N-1 secure.
their max outputs are:
Unit A= 155, Unit B = 195, Unit C = 165, Unit D = 305 and Unit E = 280
Considering the reserve constrain their max outputs are:
Unit A= 155, Unit B = 195, Unit C = 165, Unit D = 175 and Unit E = 205
The approach I took was to create a matrix and Tripp one unit per time and sum their max outputs like as follows:
Max demand supported **Unit A Tripping** Unit B Unit C Unit D Unit E 740 **Unit B Tripping** Unit A Unit C Unit D Unit E 700 **Unit C Tripping** Unit A Unit B Unit D Unit E 730 **Unit D Tripping** Unit A Unit B Unit C Unit E 720 **Unit E Tripping** Unit A Unit B Unit C Unit D 690
However discussing with two other friends, each one has a different approach, one of them summed all the max outputs of each unit regardless any constraint, the second summed all the max outputs regarding the reserve constrain finding 895MW
I wonder, who got it right, and what is it meant by N-1 then.