The Research of Utilization Hours of Coal-Fired Power Generation Units Based on Electric Energy Balance

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Liu, Junhui^1 ; Yang, Jianlian^2 ; Wang, Jiangbo^1,3 ; Yang, Meng^1 ; Tian, Chunzheng^1 ; He, Xinhui^4

State Grid Henan Economic Research Institute, Zhengzhou

450000, China^1

Depepartment of Science and Technology, State Grid Corporation of China, Beijing

100031, China^2

School of Electrical Engineering, Wuhan University, Wuhan

430072, China^3

Henan Province Airport Group, Zhengzhou

450000, China^4

关键词: Coal fired units;    Coal-fired power generation;    Electric energies;    Electricity demands;    Empirical research;    Installed capacity;    Photovoltaic power;    Supply and demand balances;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/5/052097/pdf
DOI  :  10.1088/1755-1315/108/5/052097

来源: IOP

【 摘 要 】

With grid-connected scale of clean energy such as wind power and photovoltaic power expanding rapidly and cross-province transmission scale being bigger, utilization hours of coal-fired power generation units become lower and lower in the context of the current slowdown in electricity demand. This paper analyzes the influencing factors from the three aspects of demand, supply and supply and demand balance, and the mathematical model has been constructed based on the electric energy balance. The utilization hours of coal-fired power generation units have been solved considering the relationship among proportion of various types of power installed capacity, the output rate and utilization hours. By carrying out empirical research in Henan Province, the utilization hours of coal-fired units of Henan Province in 2020 has been achieved. The example validates the practicability and the rationality of the model, which can provide a basis for the decision-making for coal-fired power generation enterprises.