Publications

This page shows all publications that appeared in the IASI annual research reports. Authors currently affiliated with the Institute are always listed with the full name.

You can browse through them using either the links of the following line or those associated with author names.

Show all publications of the year  2020, with author ALL, in the category IASI Research Reports (or show them all):


IASI Research Report n. 20-01  (Next)  

Tiziano Bacci, Frangioni A., Claudio Gentile

START-UP/SHUT-DOWN MINLP FORMULATIONS FOR THE UNIT COMMITMENT WITH RAMP CONSTRAINTS

ABSTRACT
In [1] the first MIP exact formulation was provided that describes the convex hull of the solutions satisfying all the standard operational constraints for the thermal units: minimum up- and down-time, minimum and maximum power output, ramp (including start-up and shut-down) limits, general history-dependent start-up costs, and nonlinear convex power production costs. That formulation contains a polynomial, but large, number of variables and constraints. We present two new formulations with fewer variables defined on the shut-down period and computationally test the trade-off between reduced size and possibly weaker bounds. Key words: Unit Commitment problem, Ramp Constraints, MIP Formulations, Dynamic Programming, Convex Costs
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