Rolling Horizon Robust Real-Time Economic Dispatch with Multi-Stage Dynamic Modeling

Luyu Wang, Houbo Xiong (), Yunhui Shi and Chuangxin Guo
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Luyu Wang: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Houbo Xiong: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Yunhui Shi: Electric Power Dispatch Center, State Grid Zhejiang Electric Power Company Ltd., Hangzhou 310007, China
Chuangxin Guo: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China

Mathematics, 2023, vol. 11, issue 11, 1-20

Abstract: A multi-stage robust real-time economic dispatch model (MRRTD) for power systems is proposed in this paper. The MRRTD takes the dynamic form of multi-stage robust optimization as the framework to naturally simulate the operation of equipment that is temporally coupled, e.g., utility-level energy storage systems. For normal systems, the MRRTD can work directly in short time slots with a rolling horizon. For large-scale systems, the MRRTD expands the time-slot scale and generates optimal dispatch policies. With this guidance, the real-time dispatch decision can be swiftly made thereafter. In addition, a dynamic uncertainty set based on deep learning is proposed, which can dynamically refine the covering ability for probable occurred wind power scenarios. To efficiently solve the MRRTD, a novel fast robust dual dynamic programming method is employed. The effectiveness of the proposed model and solution algorithm, especially the improved scalability compared to several other dynamic economic dispatch methods, are demonstrated by simulation results from six benchmark test cases ranging from a modified IEEE 6-bus system to a 6495-bus system.

Keywords: real-time economic dispatch; energy storage systems; wind power; robust optimization; dynamic uncertainty set; fast robust dual dynamic programming (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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