规模风电并网条件下火电机组深度调峰的多角度经济性分析

发布时间：2018-03-24 15:27

本文选题：深度调峰　切入点：火电机组　出处：《电力系统自动化》2017年07期

【摘要】：火电机组深度调峰在提高风电利用率的同时降低了火电厂效益、增加了社会环境成本,文中多角度研究大规模风电并网条件下的火电机组深度调峰的经济性。首先根据火电机组的运行状态和能耗特性将其调峰过程分为常规调峰、不投油深度调峰和投油深度调峰3个阶段,并从技术角度分析影响火电厂深度调峰能力的主要因素,进而提出火电机组不同阶段的调峰能耗成本模型;建立了风电优先的经济调度模型,提出了基于煤耗量和基于期望产出的电力系统能源效率模型;并以典型10机系统为例进行仿真,从火电企业、风电企业和社会角度分析了大规模风电并网条件下,火电机组深度调峰的调度方案的经济性。研究成果将为制定火电机组深度调峰相关政策提供参考。
[Abstract]:The deep peak-shaving of thermal power units not only improves the utilization ratio of wind power, but also reduces the efficiency of thermal power plants and increases the social and environmental costs. In this paper, the economy of deep peak-shaving of thermal power units under the condition of large-scale wind power connected to grid is studied. Firstly, the peak-shaving process of thermal power units is divided into conventional peak-shaving processes according to the operating state and energy consumption characteristics of thermal power units. This paper analyzes the main factors that affect the power plant's deep peak shaving ability from the technical point of view, and then puts forward the model of energy cost of peak-shaving in different stages of thermal power units. The economic dispatching model of wind power priority is established, and the energy efficiency model of power system based on coal consumption and expected output is proposed. From the point of view of wind power enterprise and society, this paper analyzes the economy of deep peak-shaving scheduling scheme of thermal power units under the condition of large-scale wind power grid connection. The research results will provide a reference for the formulation of policies related to deep peak-shaving of thermal power units.
【作者单位】：新能源电力系统国家重点实验室(华北电力大学);
【基金】：美国能源基金会资助项目(G-1403-20188) 国家自然科学基金重大项目(51190103)~~
【分类号】：TM621;TM73

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