Research on the multi-objective optimal operation of cascade reservoirs in the upper and middle Yellow River basin

Abstract The reservoirs (hydro plants) along the upper Yellow River are typical cascade reservoirs, with multiple objectives regarding flood control, ice control, water supply, power generation, and ecological security. The competition among these multiple objectives reflects the competition among v...

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Bibliographic Details
Published in:Water science & technology. Water supply 2019-11, Vol.19 (7), p.1918-1928
Main Authors: Bian, Jia-qi, Dong, Zeng-chuan, Jia, Yi-fei, Zhong, Dun-yu
Format: Article
Language:English
Subjects:
Algorithms
Biological competition
Civil engineering
Competition
Conflicts
Control
Decision making
Electric power demand
Electricity consumption
Environmental regulations
Flood control
Hydroelectric power
Hydrology
Ice prevention
Multiple objective analysis
Objectives
Optimization
Regulations
Reservoirs
River basins
Rivers
Scheduling
Security
Systems design
Water shortages
Water supply
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Summary:Abstract The reservoirs (hydro plants) along the upper Yellow River are typical cascade reservoirs, with multiple objectives regarding flood control, ice control, water supply, power generation, and ecological security. The competition among these multiple objectives reflects the competition among various agencies with different interests. There has been a certain degree of conflict between ‘power scheduling’, which aims at obtaining greater power generation from the cascade reservoirs, and ‘water regulation’, which is currently being implemented. Questions of how to reasonably use the comprehensive regulation capacity of the cascade reservoirs, in order to relieve the conflicts among multiple objectives, and understand the nature of the competition between ‘power scheduling’ and ‘water regulation’, require urgent research and solutions. Based on an analysis of the current situation regarding water supply, electricity demand, flood control, ice control, and ecology, a multi-objective optimal operation model for the cascade reservoirs in the upper and middle reaches of the Yellow River has been constructed to reveal the relationships between power generation and other objectives. This study provides theoretical evidence for the informed operation of the cascade reservoirs and will be of great significance for coordinating the relationship between power generation and water regulation.
ISSN:1606-9749
1607-0798
DOI:10.2166/ws.2019.067