Analysis on Energy Saving Potential for Pumped-storage and Two-shift Peaking of Coal-fired Units

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Zhang, Hong-Wei^1^2 ; Liu, Junqing^1

National Institute of Clean and Low Carbon Energy, Changping District, Beijing

102211, China^1

Institute of Nucler and New Energy Technology, Tsinghua University, Beijing

10084, China^2

关键词: Coal-fired power plant;    Coal-fired power unit;    Economic assessments;    Energy saving potential;    Energy-saving dispatching;    North China Power grid;    Peak load regulations;    Thermal power system;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/5/052021/pdf
DOI  :  10.1088/1755-1315/295/5/052021

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

North China power grid is mainly a thermal power system, so it is hard to meet increasing need of difference between peak and valley loads and the demand of peak-load regulation. Units peaking mode is directly related to the peaking economy, this paper set up a mode and appropriate economic assessment model for pumped storage and coal-fired power units two-shift peaking. Comprehensive consideration of pumped storage capacity and the factors influencing the load time, the evaluation method was proposed. The application indicates that the method is effective in a peaking cycle. The evaluation method can reasonably reflect the situation of the turbine peaking economy in the coal-fired power plants, and brings the benefits for pumped storage and 300MW coal-fired power units. It provides a reference for energy-saving dispatching. Pumped-storage and coal-fired power units can be used as basis for decision making of peaking shaving mode.