Development of Cascade Hydropower Reservoirs Operating System Rule Using Refill and Deplete Ranking Orders

• Main Authors: Asfaw, Tilahun Derib, Hashim, Ahmad Mustafa
• Format: Citation Index Journal
• Published: Trans Tech Publications, Switzerland 2012
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://eprints.utp.edu.my/7408/1/Development_of_Cascade_Hydropower_Reservoirs_Operating_System.pdf; http://eprints.utp.edu.my/7408/

A new model is developed for a cascade of four hydropower reservoirs operation. The aim is to improve the total power generation from the system. Daily data of reservoir level, release and power generated which varies from 4-20 years are used for analysis. Long-term data of reservoir level and inflow are used to determine the critical period. The critical period is classified into four seasons; these are filling, depleting, upper and lower level operating season. Mathematical models are used to rank the refill and the deplete order of the reservoirs. A new rule models are presented using the results of refill and depletion ranks. Power generation using the developed model is compared to the long-term historical generated; and it is found that the new rule model boost the daily power production by 5.3% and the plant factor by 2%.