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Penyusunan Rule Curve Waduk Menggunakan Model Program Dinamik Deterministik




Karni Natalia P.R
Program Studi Teknik Sipil Universitas Internasional Batam
Komplek Gedung UIB, Simpang UIB Baloi Sei Ladi, Batam.
email : kaliapr8@gmail.com
ABSTRACT
Rule curve atau kurva zonasi fluktuasi muka air waduk diperlukan sebagai acuan/pedoman
dalam pengaturan release air waduk. Dalam penyusunan rule curve waduk diperlukan
perhitungan secara teknis berupa kajian operasi waduk secara detail. Salah satu metode
optimasi untuk menyusun rule curve berdasarkan data inflow historis adalah dengan model
optimasi program dinamik deterministik.
Studi kasus yang ditinjau dalam penelitian ini adalah Waduk Sermo sebagai waduk
multipurpose untuk melayani kebutuhan air baku, air gelontor Kota Wates dan irigasi pada
Daerah Irigasi Kamal, Daerah Irigasi Pengasih, dan Daerah Irigasi Pekik Jamal yang terletak di
Kabupaten Kulon Progo, Propinsi Daerah Istimewa Yogyakarta.
Hasil keluaran forward run berupa storage dan release irigasi optimal digunakan untuk
menyusun pedoman operasi waduk atau rule curve. Dari rule curve yang diperoleh
menunjukkan kinerja operasi waduk di lapangan masih dapat ditingkatkan. Rule curve eksisting
Waduk Sermo tahun 2008 menunjukkan bahwa realisasi release di lapangan lebih mendekati
rule curve hasil optimasi.
Kata kunci : teknik optimasi, model program dinamik deterministik, rule curve.
ABSTRACT
Rule curve as boundary of reservoir based on flood zone, normal zone, and critical zone is
needed as reservoir operating rule in releasing water with satisfied demand. Detail analysis of
reservoir operation is needed to arrange the rule curve. One of the optimization method to
arrange rule curve due to synthetic inflow is deterministic dynamic programming model.
The case study conducted in this paper is Sermo Reservoir as multipurpose reservoir for
servicing domestic water supply, flushing water of Wates Town and servicing irrigation such as
Kamal, Pengasih and Pekik Jamal irrigation area, located in Ngrancah river basin at Kulon
Progo district, Daerah Istimewa Yogyakarta.
Outputs of forward run, storage and optimal release irrigation were used to arrange reservoir
operating rule or rule curve. The rule curve that was derived from optimization showed that the
performance of the existing reservoir operation can be increased. The existing rule curve of
Sermo Dam 2008 showed that the realization of water release was closer with the results of
optimization.
Keywords : optimization technique, deterministic dynamic programming model, rule curve

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