Generation Scheduling of Self-Generation Power Plant in Enterprise Microgrid With Wind Power and Gateway Power Bound Limits

Electricity cost constitutes an important part of the total energy cost for some energy-intensive industries (EIIs). For enterprises belonging to such EIIs, an effective way to reduce the electricity cost is to integrate the renewable energy such as wind and/or photovoltaic energy into their energy systems. In this paper, the problem of generation scheduling of self-generation power plant (SGPP) in EII microgrid with wind power is considered. First, a robust optimization-based formulation with flexible uncertainty set is established to obtain the feasible range of SGPP outputs, which can ensure the robustness and nonanticipativity of the system. Second, the economic dispatch (ED) model based on the feasible range is proposed and the multi-period scheduling problem is decoupled into a series of single-period ED problems. Besides, the analytical solution to the ED problem is given and thus the computational efficiency is guaranteed. Numerical testing is performed for a real system and the results show that the method is effective.