Research on Optimal Operation of Power Generation and Consumption for Enterprises with Captive Power Plants Participating in Power Grid Supply–Demand Regulation

Hangming Liu, Huirong Zhao (), Jincheng Yang and Daogang Peng
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Hangming Liu: College of Automation Engineering, Shanghai University of Electric Power, Shanghai 200090, China
Huirong Zhao: College of Automation Engineering, Shanghai University of Electric Power, Shanghai 200090, China
Jincheng Yang: Marketing Service Center, State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830013, China
Daogang Peng: College of Automation Engineering, Shanghai University of Electric Power, Shanghai 200090, China

Energies, 2024, vol. 17, issue 9, 1-31

Abstract: Wind and solar power curtailment and the difficulty of peak regulation are issues that urgently need to be addressed in the process of China’s new electric power system. Enterprises with captive power plants (ECPPs) are large-capacity power consumers and producers, with significant optimization and adjustment potential on both the supply and demand sides. This paper aims to promote the active participation of ECPPs in grid supply–demand regulation and proposes an optimization model for the power generation and consumption of ECPPs based on a day-ahead, intra-day two-stage dispatching model. First, targeting demand response scenarios, mathematical models for analyzing the potential of ECPPs to participate in power grid supply–demand regulation are proposed. Then, an optimization model for ECPP generation and consumption with load regulation is established, and a two-stage dispatching model is proposed to fully mobilize the regulation flexibility of ECPPs. Finally, a robust dispatching model considering price uncertainty is established based on information gap decision theory. The case results show that ECPPs can reduce the curtailment rate in a region by approximately 9%, alleviate the peak pressure of the power grid, reduce carbon emissions by 1373.55 tons, and promote low-carbon development for themselves. Meanwhile, considering price uncertainty strengthens the risk resistance capability of ECPPs and provides a basis for their willingness to participate in supply–demand regulation.

Keywords: enterprises with captive power plants; supply–demand regulation; response demand; price uncertainty (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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