A Transmission-Constrained Unit Commitment Method

This 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. q 1999 Elsevier Science B.V. All rights reserved.

• Type: Conference
• Year: 1998
• Where: HICSS
• Authors: Chung-Li Tseng, Shmuel S. Oren, C. S. Cheng, C.-A. Li, Alva J. Svoboda, Raymond B. Johnson
• Keywords: Biometrics, HICSS 1998, Linear Constraints, Reserve Constraints, Transmission Constraints