Research Article

A Comparative Study of Fuzzy Logic, Genetic Algorithm, and Gradient-Genetic Algorithm Optimization Methods for Solving the Unit Commitment Problem

Table 2

Characteristics of production units.

Unit (MW) (MW) UpDownHot start cost ($)Cold start cost ($)Cold start (h)

1582110379.230.360.075688450090006
25515606.627.30.2274331703402
35310454.822.740.2274331703402
4238151.822.50.15181130600
5238303.622.740.15181130600

, : minimum and maximum power produced by each generator.
Up: continuously minimum up-time of unit .
Down: continuously minimum down-time of unit .
, , and : cost function parameters of unit .
Cold start cost ($): cold start cost of unit .
Hot start cost ($): hot start cost of unit .
Cold start (h): cold start time of unit .