Multistage robust optimization for the day-ahead scheduling of hybrid thermal-hydro-wind-solar systems
- University of Arizona, Tucson, AZ (United States); Stevens Institute of Technology
- University of Arizona, Tucson, AZ (United States)
- Stevens Institute of Technology, Hoboken, NJ (United States)
The integration of large-scale uncertain and uncontrollable wind and solar power generation has brought new challenges to the operations of modern power systems. In a power system with abundant water resources, hydroelectric generation with high operational flexibility is a powerful tool to promote a higher penetration of wind and solar power generation. In this paper, we study the day-ahead scheduling of a thermal-hydro-wind-solar power system. The uncertainties of renewable energy generation, including uncertain natural water inflow and wind/solar power output, are taken into consideration. We explore how the operational flexibility of hydroelectric generation and the coordination of thermal-hydro power can be utilized to hedge against uncertain wind/solar power under a multistage robust optimization (MRO) framework. To address the computational issue, mixed decision rules are employed to reformulate the original MRO model with a multi-level structure into a bi-level one. Column-and-constraint generation (C &CG) algorithm is extended into the MRO case to solve the bi-level model. The proposed optimization approach is tested in three real-world cases. Furthermore, the computational results demonstrate the capability of hydroelectric generation to promote the accommodation of uncertain wind and solar power.
- Research Organization:
- Stevens Institute of Technology, Hoboken, NJ (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Water Power Technologies Office
- Grant/Contract Number:
- EE0008944
- OSTI ID:
- 2438046
- Journal Information:
- Journal of Global Optimization, Journal Name: Journal of Global Optimization Journal Issue: 4 Vol. 88; ISSN 0925-5001
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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