(For USM Staff/Student Only)

EngLib USM > Ω School of Civil Engineering >

Stochastic and modified sequent peak algorithm for reservoir planning analysis considering performance indices / Issa Saket Oskoui

Stochastic and modified sequent peak algorithm for reservoir planning analysis considering performance indices_Issa Saket Oskoui_A9_2016_MYMY
Kajian ini melibatkan permodelan tempoh kritikal dan jumlah kapasiti penyimpanan sistem takungan menggunakan kriteria prestasi dan teknik penjanaan data sintetik. Tiga tapak takungan gagasan di bahagian Selatan Semenanjung Malaysia telah dipilih sebagai kajian kes: stesen pengukuran Johor di Rantau Panjang; Melaka di Pantai Belimbing dan Muar di Buluh Kasap. Analisis statistik data aliran sungai tahunan dan bulanan tapak kajian telah dijalankan sebelum analisis siri masa. Ujian telah dilaksanakan untuk menyemak ketekalan, kepegunan, kerawakan dan mencari fungsi taburan kebarangkalian yang paling sesuai untuk data sejarah tapak kajian. Model auto-regresi susulan satu, AR(1), digabung pula dengan model pengasingan Valencia-Schaake (V-S) telah digunakan untuk menjana data aliran sungai sintetik. Pada peringkat seterusnya, Algoritma Puncak Berturutan (SPA) terubahsuai telah digunakan untuk analisa perancangan storan-hasil sistem takungan pada permintaan yang berbeza, dan pelbagai indeks prestasi kebolehharapan dan kelemahan menggunakan data aliran sungai sintetik. Hasil analisis menunjukan indeks prestasi kebolehharapan dan kelemahan adalah signifikan dalam permodelan tempoh kritikal dan kapasiti storan. Seterusnya menggunakan hasil simulasi, persamaan regresi baru telah dibangunkan untuk model tempoh kritikal dan jumlah kapasiti penyimpanan takungan sistem kajian secara berasingan dan bersepadu untuk tiga sistem kajian menggunakan parameter permintaan piawai, indeks prestasi kebolehharapan dan kelemahan, dan pekali perubahan dan pencong aliran tahunan. Nilai R2 pada julat lengkap tempoh kritikal dan kapasiti storan yang diramalkan adalah tinggi iaitu masing-masing 0.9810 dan 0.9856 untuk tiga sistem bersepadu. Persamaan ini boleh menghasilkan anggaran semula penyelakuan sintetik tempoh kritikal dan penyimpanan kapasiti kritikal bagi permintaan yang berbeza, indeks prestasi kebolehharapan dan kelemahan dengan cekap. _______________________________________________________________________ This study is on modeling the critical period and total storage capacity of reservoir systems employing performance criteria and synthetic data generation technique. Three sites in the Southern part of Peninsular Malaysia are selected as conceptual reservoirs to be the case studies: Johor at Rantau Panjang; Melaka at Pantai Belimbing and Muar at Buluh Kasap gauging stations. Statistical data analysis of both annual and monthly streamflow data of the study sites is carried out prior to the time series analysis. The tests are implemented for testing consistency, stationarity, randomness and determining the most appropriate probability distribution function of the historical data. Subsequently, Auto-regressive lag one, AR(1), coupled with Valencia-Schaake (V-S) disaggregation model are applied to generate synthetic streamflow data. In the next stage, the modified Sequent Peak Algorithm (SPA) is employed for the Storage-yield planning analysis of reservoir systems at different demands, reliability and vulnerability performance metrics employing the synthetic streamflow data. The results show that the reliability and vulnerability metrics are significant in critical period and storage capacity modeling. Subsequently, using the simulation results, new regression equations are developed to model the critical period and total storage capacity of study systems individually and three systems together applying standard demand parameter, reliability and vulnerability performance measures and coefficient of variation and skewness of annual flows. The R2 obtained over the complete range of the critical period and storage capacity prediction is high, being 0.9810 and 0.9856, respectively for the three systems together. Hence, the obtained equations could reproduce the simulated critical period and storage capacity for different demands, reliability and vulnerability indices efficiently.
Contributor(s):
Issa Saket Oskoui - Author
Primary Item Type:
Thesis
Identifiers:
Accession Number : 875008867
Language:
English
Subject Keywords:
stationarity; randomness; streamflow
Sponsor - Description:
Pusat pengajian Kejuruteraan Awam -
First presented to the public:
3/1/2016
Original Publication Date:
8/28/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 263
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-08-28 11:39:56.54
Submitter:
Mohamed Yunus Yusof

All Versions

Thumbnail Name Version Created Date
Stochastic and modified sequent peak algorithm for reservoir planning analysis considering performance indices / Issa Saket Oskoui1 2020-08-28 11:39:56.54