Hydrology Journal
  • Year: 2009
  • Volume: 32
  • Issue: 3and4

Storage Allocation and Release Rules for Multi-Reservoir System

  • Author:
  • M.G Devamane1, V Jothiprakash2, S. Mohan3
  • Total Page Count: 13
  • Page Number: 208 to 220

1The Orchid College of Engineering and Technology, Tale-hipparga, Sola pur, Maharashtra, mgdevamane@yahoo.co.in

2Department of Civil Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400 076%. vprakash@iitb.ac.in

3Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, 600036%. smohan@iitm.ac.in

Abstract

In the present study an attempt is made to derive storage allocation release rules for multi-pur pose multi-r eservoir system by using the results obta ined from a non-linear programming model. From the optimiza tion results, the r elea se pattern was observed from each reservoir corresponding to their storage and inflow in each month. These optimal releases and storages were included in the derivation of release rules. The storage allocation rules and release rules are derived by regressing the storages and releases, and monthly regression equations are fitted for each reservoir. It is found that the over-flow or spill is not useful in the derivation of release rules. The derived rule curves are tested with a detailed simulation model, and the performances of these rules for five years are compared with the direct results of detailed optimization model. The comparison indicate that the simple regression equation developed in the present study could be useful in updating reservoir operation plan even for large and complex systems while being found to be simple and easy for practical implementation.

Keywords

Multi-purpose Multi-reservoir System, Storage allocation and release rules, Non-linear programming Model, Regression Models, Krishna River Basin