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"ABSTRAKKarakteristik prinsip sistem multiprosesor yaim kemampuan masing-masing prosesor untuk mengakses (share) sebuah memori utama. Kemarnpuan pengaksesan berlangsung sedemikian rupa, sehingga interkoneksi antara modul-modul proscsor dan memori texjadi. Untuk kemampuan ini diperguuakan metode switching yang berkemampuan menyediakan pencabangan secara logika antara prosesor dengan memoxi., seperti cross-bar swirch yang membentuk jaringan interkoneksi multiprosesor cross-bar.Unjuk kerja jaringan interkoneksi multiprosesor dimnjukkan oleh lebarpita (bandwidth), probabilitas penerimaan Qvrobabilizy acceptance), utilitas prosesor (ulility), dan faktor harga efektif (cost factor). Sedangkan fhktor yang mempengamhi unjuk kelja sistem yaitu jumlah prosesor, jumlah memori, dan laju requesr.Dalam Tugas Akhir ini dilakukan analisa dan simulasi unjuk kenja jaringan interkoneksi yang menggxmakan cros.s'~bar. Analisa dilakukan dengan memberikan model-model matematik yang memungkillkan mewakili unjuk ke1ja kedua sistem, sedangkan simulasi dilakukan dengan mencontoh keadaan sistem yang sesungguhnya.

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"Salah satu contoh penerapan energi baru terbarukan EBT yang sedang berkembang adalah Pembangkit Listrik Tenaga Surya PLTS. Berdasarkan data Rencana Usaha Penyediaan Tenaga Listrik (RUPTL) PT PLN (Persero) 2019-2028 disebutkan bahwa potensi energi matahari (surya) di Indonesia sebesar 207.898 MW (4,80 kWh/m2/hari) dan hanya sebesar 78,5 MW kapasitas terpasang di Indonesia. Pada penelitian ini dilakukan studi interkoneksi PLTS 5 MWp dengan jaringan tegangan menengah 20 kV Daerah X sebagai salah satu penerapan energi baru terbarukan di Indonesia. Studi interkoneksi mencakup analisis aliran daya dan analisis gangguan hubung singkat tiga fasa. Pada analisis aliran daya diperoleh hasil bahwa sistem PLTS mampu menyuplai kebutuhan beban pada sistem sebesar 5.000 kW daya aktif. Didapatkan juga bahwa interkoneksi PLTS dengan sistem mengakibatkan kenaikan level tegangan dari setiap bus pada sistem sebesar 0,08-1,41%, serta membuat perubahan persentase pembebanan komponen sebesar 0,01% hingga 93,01%. Hasil analisis gangguan hubung singkat tiga fasa menunjukkan bahwa interkoneksi PLTS dengan sistem memiliki besar nilai arus gangguan hubung singkat sebesar 5,70-7,01 kA, sehingga nilai arus gangguan untuk seluruh bus masih jauh di bawah nilai kapasitas pemutusan arus hubung singkat sistem proteksi yang bernilai 25 kA. Hasil studi interkoneksi yang diperoleh menujukkan bahwa interkoneksi sistem PLTS 5 MWp dengan jaringan tegangan menengah 20 kV Daerah X dapat dilakukan.

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One example of the application of new renewable energy that is currently developing is solar power plant. Based on data from Rencana Usaha Penyediaan Tenaga Listrik (RUPTL) PT PLN (Persero) 2019-2028, it is stated that the potential of solar energy in Indonesia is 207,898 MW (4.80 kWh/m2/ day) and only 78.5 MW of capacity installed in Indonesia. In this study, a 5 MWp solar power plant was interconnected with a 20 kV medium-voltage network of Area X as one of the renewable energy applications in Indonesia. Interconnection studies include power flow analysis and three phase short circuit fault analysis. In the analysis of the power flow results obtained that the Solar Power Plant system is capable of supplying the load requirements to the system of 5,000 kW active power. It was also found that interconnection of solar power plant with the system resulted in an increase in the voltage level of each bus in the system by 0.08 to 1.41%, as well as changing the percentage of component loading by 0.01% -93.01%. The results of the three-phase short circuit fault analysis show that the interconnection of the solar power plant system has a short circuit fault current value of 5.70-7.01 kA, so the fault current value for the whole bus is still far below the value of the short circuit current capacity of the protection systems short circuit worth 25 kA. The results of the interconnection study showed that interconnection of a 5 MWp solar power plant system with a 20 kV medium voltage network Area X can be carried out."

"The fixed jacket is still the most common offshore structure used for drilling and oil production. The structure consists of tubular members interconnected to form a three-dimensional space frame, which can be categorized into a column structure. The structure usually has four to eight legs that are battered to achieve stability against axial compressive loads and toppling due to wave loads. The configuration of a typical member on the jacket structure has significant influence on buckling and fatigue strength. Horizontal and diagonal braces play an important role in resisting the axial compression and wave load on the global structure. This paper discusses the effect of symmetrical and asymmetrical configuration shapes in buckling and fatigue strength analysis on two types of fixed jacket offshore platforms. The axial compressive and lateral (wave) loads were considered and applied to both structures. The material and dimensions of the two structures were assumed to be constant and homogenous. Crack extension and corrosion were not considered. To assess the buckling and fatigue strength of these structures, due to the symmetrical and asymmetrical configuration shape, the finite element method (FEM) was adopted. Buckling analysis was performed on these structures by taking two-dimensional planes into consideration to obtain the critical buckling load for the local plane; fatigue life analysis was then calculated to produce the fatigue life of those structures. The result obtained by FEM was compared with the analytical solution for the critical buckling load. The stress-strain curve was also applied to show the difference between symmetrical and asymmetrical shapes. For fatigue life analysis, the procedure of the response amplitude operator was applied."

"This book presents the application of some AI related optimization techniques in the operation and control of electric power systems. With practical applications and examples the use of functional analysis, simulated annealing, Tabu-search, Genetic algorithms and fuzzy systems for the optimization of power systems is discussed in detail. Preliminary mathematical concepts are presented before moving to more advanced material."