面向节能发电调度的电力系统多目标优化调度模型

Multi-objective Optimal Dispatching Model for Energy-saving Power Generation Dispatching

为实现电力系统节能减排及提高系统对风电等新能源的消纳能力,本文从电力系统节能发电角度,提出了一种电力系统多目标优化调度模型。该优化调度模型充分考虑了机组发电成本的经济型、风电场消纳能力最大化以及环境污染最小化等三个因素,在传统优化调度模型基础上建立了新的多目标优化调度模型。并采用第二代非劣支配排序遗传算法(Non-dominated Sorting Genetic Algorithm II,NSGA-II)对调度模型进行优化求解。最后实际算例结果表明,所提的优化调度模型在满足各类约束条件下能够实现电力系统的节能减排调度效果。

In order to realize energy saving and emission reduction in power system and improve the system’s ability to absorb new energy such as wind power, a multi-objective optimal dispatching model of power system is proposed from the viewpoint of energy saving and power generation in power system. The optimal dispatching model fully considers three factors: economic cost of generating units, maximization of wind farm absorptive capacity and minimization of environmental pollution, and establishes a new multi-objective optimal dispatching model based on the traditional optimal dispatching model.And the NSGA-II algorithm is used to optimize the scheduling model. Finally, a practical example shows that the proposed optimal dispatching model can achieve the energy-saving and emission reduction dispatching effect of power system under various constraints.