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Optimizing Hydropower Reservoir Operation Using Hybrid Genetic Algorithm and Chaos

Cheng, Chun-Tian; Wang, Wen-Chuan; Xu, Dong-Mei; Chau, K. - In: Water Resources Management 22 (2008) 7, pp. 895-909

convergence, slow iterations to reach the global optimal solution and getting stuck at a local optimum. A novel chaos genetic … algorithm (CGA) based on the chaos optimization algorithm (COA) and genetic algorithm (GA), which makes use of the ergodicity … and internal randomness of chaos iterations, is presented to overcome premature local optimum and increase the convergence …

Persistent link: https://www.econbiz.de/10010794658

Chaotic Evolutionary Algorithms for Multi-Reservoir Optimization

Arunkumar, R.; Jothiprakash, V. - In: Water Resources Management 27 (2013) 15, pp. 5207-5222

The water sharing dispute in a multi-reservoir river basin forces the water resources planners to have an integrated operation of multi-reservoir system rather than considering them as a single reservoir system. Thus, optimizing the operations of a multi-reservoir system for an integrated...

Persistent link: https://www.econbiz.de/10010794435

Single Reservoir Operating Policies Using Genetic Algorithm

Jothiprakash, V.; Shanthi, Ganesan - In: Water Resources Management 20 (2006) 6, pp. 917-929

To obtain optimal operating rules for storage reservoirs, large numbers of simulation and optimization models have been developed over the past several decades, which vary significantly in their mechanisms and applications. As every model has its own limitations, the selection of appropriate...

Persistent link: https://www.econbiz.de/10010794055

Predicting Spatial Distribution of Snow Water Equivalent Using Multivariate Non-linear Regression and Computational Intelligence Methods

Marofi, Safar; Tabari, Hossein; Abyaneh, Hamid - In: Water Resources Management 25 (2011) 5, pp. 1417-1435

The evaluation of water resources given by snowfall is very important in the mountainous basins. In this study, the snow depth (SD) and snow water equivalent (SWE) were investigated to quantify the water resources stored in the snow. Multivariate non-linear regression (MNLR) method, four types...

Persistent link: https://www.econbiz.de/10010794097

Application of Projection Pursuit Dynamic Cluster Model in Regional Partition of Water Resources in China

Wang, Shun-Jiu; Ni, Chang-Jian - In: Water Resources Management 22 (2008) 10, pp. 1421-1429

The present study develops a projection pursuit dynamic cluster (PPDC) model by combining dynamic cluster with projection pursuit to solve the problem of regional partition of water resources in China. The procedures of the PPDC model are described as follows. Firstly, a multi-factor cluster...

Persistent link: https://www.econbiz.de/10010794114

Optimizing Structural Best Management Practices Using SWAT and Genetic Algorithm to Improve Water Quality Goals

Kaini, Prakash; Artita, Kim; Nicklow, John - In: Water Resources Management 26 (2012) 7, pp. 1827-1845

A genetic algorithm (GA), an evolutionary optimization technique, is coupled with a semi-distributed hydrologic model, Soil and Water Assessment Tool (SWAT) to find an optimum combination of structural Best Management Practices (BMPs) that meets the treatment goals at a watershed scale. The...

Persistent link: https://www.econbiz.de/10010794142

A Cost-Effective Method to Control Seawater Intrusion in Coastal Aquifers

Abd-Elhamid, Hany; Javadi, Akbar - In: Water Resources Management 25 (2011) 11, pp. 2755-2780

Intrusion of seawater into coastal aquifers is considered one of the most important processes that degrade water-quality by raising the salinity to levels exceeding acceptable drinking standards. Therefore saltwater intrusion should be prevented or at least controlled to protect groundwater...

Persistent link: https://www.econbiz.de/10010794176

Evolving Effective Hydraulic Model for Municipal Water Systems

Wu, Zheng; Clark, Christopher - In: Water Resources Management 23 (2009) 1, pp. 117-136

Constructing a robust hydraulic network model is vitally important, but a time-consuming task. Over last two decades, several approaches using optimization techniques have been developed for identifying model parameters. Although most of the methods can make the model agree with field...

Persistent link: https://www.econbiz.de/10010794183

Pressure Management Model for Urban Water Distribution Networks

Nazif, Sara; Karamouz, Mohammad; Tabesh, Massoud; … - In: Water Resources Management 24 (2010) 3, pp. 437-458

A technique for leakage reduction is pressure management, which considers the direct relationship between leakage and pressure. To control the hydraulic pressure in a water distribution system, water levels in the storage tanks should be maintained as much as the variations in the water demand...

Persistent link: https://www.econbiz.de/10010794211

An Effective Approach to Long-Term Optimal Operation of Large-Scale Reservoir Systems: Case Study of the Three Gorges System

Li, Fang-Fang; Wei, Jia-Hua; Fu, Xu-Dong; Wan, Xin-Yu - In: Water Resources Management 26 (2012) 14, pp. 4073-4090

A new approach for optimization of long-term operation of large-scale reservoirs is presented, incorporating Incremental Dynamic Programming (IDP) and Genetic algorithm (GA) . The immense storage capacity of the large scale reservoirs enlarges feasible region of the operational decision...

Persistent link: https://www.econbiz.de/10010794270