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Abstract
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.
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Details
1 State Grid Henan Economic Research Institute, Zhengzhou, 450000, China
2 Depepartment of Science and Technology, State Grid Corporation of China, Beijing, 100031, China
3 State Grid Henan Economic Research Institute, Zhengzhou, 450000, China; School of Electrical Engineering, Wuhan University, Wuhan, 430072, China
4 Henan Province Airport Group, Zhengzhou, 450000, China