Untitled

Alaya, Abdallah Ben; Souissi, A.; Tarhouni, Jamila; Ncib, Kamel

doi:10.1023/a:1024721507339

Cited by 55 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Stochastic dynamic programming (SDP) is the most conventional methodology that can be used to address these issues. SDP has long been studied and successfully implemented in reservoir operation [2][3][4], which is attributable to its capability for dealing with the nonlinearity of functions involved in the model as well as in terms of its structure being inherently compatible with the stage-by-stage decision-making procedure often employed in realtime reservoir operation. For example, the water balance expresses the relationship of storages between two successive time-steps [5], and the Markov chain is commonly used to represent the stochastic relationship of inflows also between two successive time-steps [6].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Yield and Seasonal Prices on the Operation of Lancang Cascaded Reservoirs

Xie¹,

Feng

Wang

et al. 2022

Energies

View full text Add to dashboard Cite

This work formulates a stochastic dynamic programming (SDP) model that incorporates seasonal electricity prices and can handle a constraint on power yield, which is assumed to be satisfied at any time it is possible, thus allowing for an analysis of their impacts on the operational performances of cascaded reservoirs. The model is applied to the Lancang Cascade, specifically its two largest reservoirs, Xiaowan and Nuozhadu. The results show that increasing the power yield of the cascade will reduce energy production unfavorably but will impact water spillage favorably, with a power yield of 2000 MW and with a 91% reliability suggested as being a satisfactory operational target. The case study also suggests that using seasonal electricity prices makes the power generation very unstable during weeks 12–20, which is a period of time that is critical to transferring from dry to flooding seasons.

show abstract

Section: Introductionmentioning

confidence: 99%

Impacts of Yield and Seasonal Prices on the Operation of Lancang Cascaded Reservoirs

Xie¹,

Feng

Wang

et al. 2022

Energies

View full text Add to dashboard Cite

show abstract

“…Approximately two thirds of the world's existing large dams are in developing countries (World Commission on Dams 2000). Large dams play an important role in promoting economic and social development and provide important services such as electricity generation (Sule 1988;Feder 2004), water supplies (Ibáñez-Castillo et al 1997;Ben Alaya et al 2003;Mugabe et al 2003), flood control (Agthe et al 2000;Le et al 2007), assistant navigation (Xie 2004) and so on. However, the environmental costs of these structures are becoming apparent (World Commission on Dams 2000; Pohl 2004;Scodanibbio and Mañez 2005).…”

Section: Introductionmentioning

confidence: 99%

Impact of Dam Construction on Water Quality and Water Self-Purification Capacity of the Lancang River, China

Wei

Zhang

Cui

et al. 2008

Water Resour Manage

165

View full text Add to dashboard Cite

Along with the sequent completion of Manwan and Dachaoshan Dam, the river continuum of the middle and lower reaches of the Lancang River was separated into three types of segments: reservoir, below-dam segment and downstream flowing segment. The long-term series of water quality and river flow data over 20 years were analyzed in order to study the impact of dam construction and operation on water quality and water self-purification capacity of these different river segments. From pre-dam period to the first 7 years after Manwan Dam had been accomplished, the water quality of Manwan Reservoir became worse due to the accumulation of pollutants, and then to the next 5 years the water quality became better in virtue of the water self-purification of the reservoir. The cooperative operation of Manwan and Dachaoshan Dam had cumulatively positive impacts on water quality of their below-dam segment but no impacts on that of downstream flowing segment. From pre-dam period to the first 7 years after the closure of Manwan Dam, the water selfpurification capacity of Xiaowan-Manwan segment for BOD 5 , COD Mn and NH 3 -N decreased. Also, the water self-purification capacity of Manwan-Dachaoshan segment for BOD 5 and COD Mn decreased but for NH 3 -N increased. However, the water self-purification capacity of Jinghong-Ganlanba segment changed contrary to Manwan-Dachaoshan segment. In general, the construction of Manwan Dam negatively affected the water self-purification capacity of reservoir and below-dam segment but impose little impact on that of downstream flowing segment. This study suggested that it is necessary to pay attention to the effect of complicated temporal and spatial characteristics of dam on aquatic ecosystem.

show abstract

Water Allocation Plan to Meet Multi-regional Relevance Needs

Zhao

Chen

2019

Advances in Intelligent Systems and Computing

View full text Add to dashboard Cite

Untitled

Cited by 55 publications

References 6 publications

Impacts of Yield and Seasonal Prices on the Operation of Lancang Cascaded Reservoirs

Impacts of Yield and Seasonal Prices on the Operation of Lancang Cascaded Reservoirs

Impact of Dam Construction on Water Quality and Water Self-Purification Capacity of the Lancang River, China

Water Allocation Plan to Meet Multi-regional Relevance Needs

Contact Info

Product

Resources

About