Title :
Power systems marginal cost curve and its applications
Author :
Wang, S.J. ; Shahidehpour, S.M. ; Xiang, Nian-de
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Inst. of Technol., Chicago, IL, USA
fDate :
8/1/1995 12:00:00 AM
Abstract :
This paper presents a forward recursive procedure to calculate the expected system marginal cost curve (EMC). The EMC formulation allows for multi-state and multi-block dispatch of generating units and is used to determine the optimal energy of pumped-storage units. A new approach is developed to compute the first and second derivatives of the expected generation energy of a thermal unit with respect to the capacity of all thermal units in the system. The salient feature of the proposed approach is that it applies to hydro-thermal systems with multiple limited-energy hydro units
Keywords :
economics; hydrothermal power systems; load dispatching; probability; pumped-storage power stations; thermal power stations; emissions control; expected system marginal cost curve; generating units dispatch; hydro-thermal systems; multi-block dispatch; multi-state dispatch; multiple limited-energy hydro units; power systems marginal cost curve; probabilistic dispatch; probabilistic production cost; pumped-storage units; Capacity planning; Costs; Electromagnetic compatibility; Power system modeling; Power system planning; Power system reliability; Power system security; Power system simulation; Power systems; Production;
Journal_Title :
Power Systems, IEEE Transactions on
