| Summary: | 碩士 === 國立中央大學 === 土木工程學系 === 85 === This study emphasizes on the joint operating policies for a
multiple reservoir system in parallel. In such a joint operating
policy, the release toward each side demand is specified by rule
curves of each individual reservoir. As for the joint demand,
the release from each reservoir is defined as a function of the
individual storage and time of year together with balancing
curves indicating the ideal distribution of storage levels among
the reservoirs. The balancing curves are obtained from dynamic
programming technique and statistical analysis. Two types of
joint operation, a fully joint operation and a partial one, are
studied. A partial joint operation means only certain demands
can be made from each and every reservoir. The reservoir system,
consisting Shihmen Reservoir and Feisui Reservoir, in Tanshui
River Basin is employed as a case study. First, the balancing
curves are obtain. Then, the joint operation based on the
balancing curves is simulated for a nine-year period. The
results show that for the situation in the year 2000, the fully
joint operation outperforms the partial joint operation and an
independent operation in minimize shortage. However, for the
case that the demand increases as in the n the year 2020, the
joint operation successfully reduces the average annual
shortage, but results in an increase in the maximum shortage. It
is suggested that in order to reduce the impact of a severe
shortage, the joint operation should consider a hedge policy.
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