Optimal scheduling of large hydrothermal power systems

Journal Article · Fri Feb 01 00:00:00 EST 1985 · IEEE Trans. Power Appar. Syst.; (United States)

DOI:https://doi.org/10.1109/TPAS.1985.319042· OSTI ID:5960550

Shaw, J J; Bertsekas, D P; Gendron, R F

In this paper we present a new algorithm to find the optimal unit commitment and economic dispatch (UC/D) for a large hydrothermal power system. Mathematically, this is a large nonlinear, mixed integer optimization problem involving over 16,800 integer variables for a system having 100 thermal units with a 1-week scheduling horizon. We use a dual programming approach to solve a separate optimal control problem for each thermal unit and for each set of coupled hydro units. The algorithm has been tested on a 100 thermal unit/6 hydro unit system having a 168-hour scheduling period, and will find solutions that are within 0.1 to 0.25 percent of the optimal dual cost. We report computational results for a system modeled after the New York Power Pool.

• Research Organization: Alphatech, Inc., Burlington, MA
• OSTI ID: 5960550
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Vol. PAS-104:2
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING
POLICY AND ECONOMY
INTERCONNECTED POWER SYSTEMS
LOAD MANAGEMENT
OPTIMAL CONTROL
SCHEDULES
ALGORITHMS
HYDROELECTRIC POWER PLANTS
OPTIMIZATION
POWER POOLING
THERMAL POWER PLANTS
CONTROL
ENERGY SYSTEMS
MANAGEMENT
MATHEMATICAL LOGIC
POWER PLANTS
POWER SYSTEMS
296000* - Energy Planning & Policy- Electric Power