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- Title
Probabilistic Reliability Enhancement Strategies of Hydro Dominant Power Systems under Energy Uncertainty.
- Authors
Fang, Fang; Karki, Rajesh; Piya, Prasanna
- Abstract
Climatic hydrological changes cause considerable seasonal and yearly energy variation in hydro dominant electric power systems. Extreme weather events are becoming more frequent in recent years causing dramatic impacts on energy availability in such systems. A significant amount of energy is often wasted due to reservoir overflow during wet seasons. By contrast, the scarcity of water in dry seasons results in inadequate power generation to meet the system demand, and therefore degrades overall system reliability. The high risks associated with an extreme dry hydrological condition should not be ignored in long term system adequacy planning of hydro dominant utilities. This paper presents a probabilistic method to incorporate diurnal, seasonal and yearly energy management strategies in run-of-river and storage type hydropower plant planning and operation in order to minimize the adverse impact of energy uncertainty and maintain long-term system adequacy. The impacts of reservoir capacity and demand side management on water utilization and system reliability are investigated with case studies illustrated using the IEEE Reliability Test System modified to create a hydro dominant system. The achieved benefits of reliability enhancement strategies are analyzed and compared in this paper.
- Subjects
INSTITUTE of Electrical &; Electronics Engineers; WATER demand management; LOAD management (Electric power); ELECTRIC power systems; WATER use; RELIABILITY in engineering
- Publication
Sustainability (2071-1050), 2020, Vol 12, Issue 9, p3663
- ISSN
2071-1050
- Publication type
Article
- DOI
10.3390/su12093663