关键词: 经济调度, 电力系统, 机组组合, 线性规划, 安全约束

Abstract: The competitive generation sicle in electricity system need to have more effective and accurate decision making tools for schedaling limited resources. The short-term economic dispatch optimization problem is a mixed integer nonlinear programming problem. It is difficult to get effectively optimal solution, especially for large-scale power systems. In order to improve the efficiency of solution, an economic dispatch optimization model considering security constraints(Security-Constrained Economics Dispatch, SCED)is proposed. Linearization method is used to process the optimization model and a variety of constraints. At the same time, this method is applied to the IEEE 30-bus system for test in order to verify the effectiveness of the proposed method.

Key words: economic dispatch, power system, unit commitment, linear programming, security constraints