Table 1

The constraints of multi time scale optimal scheduling model.

Constraints Constraint type
1 Water level constraints during operation equation (7)
2 Initial water level and scheduling period water level constraints equation (8) and equation (9)
3 Reservoir water balance constraints equation (10), (11), and (12)
4 Hydropower station flow constraints equation (13)
5 Hydropower station output constraints equation (14)
6 Water level-storage capacity function relationship equation (15)
7 Tailwater flow constraints equation (16)
8 Unit output constraints equation (17) and equation (18)
9 Unit ramping constraints equation (19)
10 Unit generation flow constraints equation (20) and equation (21)
11 Unit startup and shutdown constraints equation (22) and equation (23)
12 Generation head constraints equation (24)
13 Head loss function equation (25)
14 Unit active power output constraints equation (26)

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