A transmission-constrained unit commitment method in power system scheduling
1999; Elsevier BV; Volume: 24; Issue: 3-4 Linguagem: Inglês
10.1016/s0167-9236(98)00072-4
ISSN1873-5797
AutoresChung‐Li Tseng, Shmuel S. Oren, Carol Shaoyu Cheng, Chao-An Li, A.J. Svoboda, R Johnson,
Tópico(s)Electric Power System Optimization
ResumoThis paper presents a transmission-constrained unit commitment method using a Lagrangian relaxation approach. Based on a DC power flow model, the transmission constraints are formulated as linear constraints. The transmission constraints, as well as the demand and spinning reserve constraints, are relaxed by attaching Lagrange multipliers. A three-phase algorithmic scheme is devised including dual optimization, a feasibility phase and unit decommitment. A large-scale test problem with more than 2200 buses and 2500 transmission lines is tested along with other test problems.
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