Sabur Sen and D. P. Kothari, Optimal thermal unit generating unit commitment: a review, Electrical Power and Energy Systems, Vol. 20, No. 7, pp. 443 - 451, 1998.  Home/Search   Document Not in Database   Summary   Related Articles

....is the smallest number of time intervals a unit must be on when it has been started and minimal down time is the smallest number of time intervals a unit must be ooe when it has been turned ooe. Further conditions on the operation of a unit, e.g. ramping constraints, will not be considered, see [9] for possible modeling extensions. The heat q i;S from the heat storage is positive by de nition when discharging. When charging it is negative. No start up cost is associated with the storage. The cost caused by the storage is modeled as c i;S = ff i;S (q i;S ) 2 ; 5) with ff i;S 0: De ne ....

....issue is the time dependent start up cost, and the minimal up and down times, but these can be handled eOEciently using a dynamic programming algorithm with states corresponding to the up and down times. Methods for the solution of (22) are well described in the literature, see e.g. 2] [9], and will therefore not be discussed further. The storage problem (23) separates into one problem for each time interval. The solution of this single time interval problem is rather trivial. First q o i;S is calculated analytically, then e o i;S is given by the Forwards Sequential Projection ....

Sabur Sen and D. P. Kothari, Optimal thermal unit generating unit commitment: a review, Electrical Power and Energy Systems, Vol. 20, No. 7, pp. 443 - 451, 1998.

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