Unit Maintenance Strategy Considering the Uncertainty of Energy Intensive Load and Wind Power Under the Carbon Peak and Carbon Neutral Target

Abstract

The large-scale grid connection of renewable energy is an inevitable trend to realize the low-carbon development of the power system. Therefore, the impact of the uncertainty of high-energy enterprise load and renewable energy on the establishment of the maintenance strategy of power grid units cannot be ignored. Previous research methods usually only consider the grid side or the load side. Therefore, this paper proposes a method to determine the maintenance strategy of the unit through the information exchange between the grid side and the load side, while taking into account the impact of the uncertainty of renewable energy on the system. Introducing the tiered carbon transaction cost into the objective function can reduce the system’s carbon emissions and increase the consumption of renewable energy. When establishing the grid-side model, the relevant constraints of robust performance are added, and the influence of the uncertainty of the wind turbine is fully considered. The results of the calculation example show that the unit maintenance strategy established after considering the uncertainty of high-energy enterprises and renewable energy sources has good economic efficiency.

Keywords

• Carbon trading
• energy intensive load (EIL)
• renewable energy uncertainty
• robust optimization
• unit maintenance strategy