Title :
A new approach for security constrained unit commitment
Author :
Pengpeng Yang ; Xueshan Han ; Li Zhang
Author_Institution :
Sch. of Electr. Eng., Shandong Univ., Jinan
Abstract :
The paper proposes a bilevel programming model for security-constrained unit commitment. The upper level solves an optimal power flow problem based on a DC power flow model; the lower level gives the unit commitment results of each subsystems as well as the required Lagrangian multipliers for the upper level and thus the two levels can be solved alternately. In this paper a 16-bus system with 19 units is analyzed to exhibit the effectiveness of the proposed approach.
Keywords :
DC transmission networks; load flow; power generation dispatch; power generation scheduling; 16-bus system; DC power flow; Lagrangian multipliers; bilevel programming model; optimal power flow problem; security-constrained unit commitment; subsystems; transmission-constrained unit commitment; Constraint theory; Costs; Dynamic programming; Electricity supply industry; Lagrangian functions; Mathematical model; Power system modeling; Power system reliability; Power system security; Testing; Lagrangian relaxation; electrical power system; network security constraints; unit commitment; variable duplication;
Conference_Titel :
Power System Technology, 2006. PowerCon 2006. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
1-4244-0110-0
Electronic_ISBN :
1-4244-0111-9
DOI :
10.1109/ICPST.2006.321629
