Microgrid systems are becoming more popular and the main component in a microgrid system is generation, which in a microgrid system usually consists of distributed generations (DGs). Because the renewable energy (RE) ...
Microgrid systems are becoming more popular and the main component in a microgrid system is generation, which in a microgrid system usually consists of distributed generations (DGs). Because the renewable energy (RE) generators are an inverter-based generator, a microgrid dominated by RE generators is called inverter-based microgrid. Due to intermittency of RE generator, such as solar PV, the RE power generation variation may cause instability. The conventional method to analyze system stability due to the variation of loads and generation is modal analysis. In this experiment the proposed method for analyzing small signal stability is by using Kharitonov’s Theorem. The objective of this experiment is to analyze inverter-based stability using Kharitonov’s Theorem and compare it to the result using conventional analysis method which is modal analysis. Using Kharitonov’s Theorem, the system stability can be determined for several operation scenarios within certain time range. In this experiment, the inverter-based microgrid will be modeled using DIgSILENT PowerFactory and the system matrices will be exported into MATLAB software to be analyzed and converted to four transfer functions using Kharitonov’s Theorem. The four output transfer function will determined the system small signal stability of modeled microgrid in one day operation.
The cofiring of biomass and coal may be one of the most effective methods to improve energy utilization efficiency and reduce greenhouse gas *** study aims to investigate combustion performance,interaction and synergi...
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The cofiring of biomass and coal may be one of the most effective methods to improve energy utilization efficiency and reduce greenhouse gas *** study aims to investigate combustion performance,interaction and synergistic effects in the cofiring of coal and three types of *** fuel consisting of coal and three types of biomass such as sawdust,rice husk and solid recovery fuel was selected as the research *** and proximate analysis and differential thermogravimetric analysis with heating rates of between 10°C and 40°C/minute are used to analyse combustion *** of combustion in a 600-MWe steam power plant with a Carolina-type boiler is also carried out with the help of computational fluid dynamic(CFD)analysis to see the effect of the interaction and synergy of the mixed fuel on the performance of the steam *** effect on the com-bustion process in the combustion chamber of a steam power plant is also *** on the analysis of several test results of parameters such as ignition temperature,burnout temperature,calorific value of the fuel mixtures as well as CFD simulation,the results of the study show a strong indication of a positive synergy in mixing some of these biomasses as compared with a fuel mix-ture consisting only of coal and one type of *** no power derating of the boiler occurs until the biomass content in the fuel mixture is~30%on a mass *** reduction in greenhouse gas emissions also appears significant from the results of the CFD simulation of this study,which is characterized by a decrease in the fraction of CO_(2) in flue gas from 21.5%for coal alone as fuel to 15.9%in the case of cofiring excluding the CO_(2) attributed to the biomass.
The research was conducted in Kabonena village, which aims to see the subsurface structure and the liquefaction potential. The research was conducted using the geoelectric resistivity method with the Wenner system. Th...
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FFT, as the key concept in the OFDM system, produces a high PAPR value. Several techniques can be implemented to reduce it, such as the Palm Date Leaf clipping and the Partial Transmit Sequence. Previous researchers h...
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High performance polysulfone (PSf) membrane has been prepared for treating of batik palembang wastewater. Many investigations attempted the use of polysulfone (PSf) membranes to filtrate dilute contaminant in textile ...
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Ontology is an organization of knowledge that can represent knowledge in a structured manner. An ontology-based Knowledge Management System is a system that combines elements of knowledge management with the applicati...
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Base saturation flow is a critical constraint used for evaluating the capacity of signalized intersections. The Indonesian Highway Capacity Manual (IHCM, 2023) is frequently used for signalized intersection planning i...
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Tamblang Dam is one of the dams, north of Bali Island, with a capacity of 7.6 million m3, and the downstream areas are in the form of agricultural land, citizen settlements, schools, offices, and other publi...
Tamblang Dam is one of the dams, north of Bali Island, with a capacity of 7.6 million m3, and the downstream areas are in the form of agricultural land, citizen settlements, schools, offices, and other public facilities for approximately 10 km2. Considering such a downstream and its large capacity, the Tamblang Dam would have a significant damage impact if it is a failure. Therefore, it is necessary to analyze the failure of the Tamblang Dam. The study aims to analyze the areas affected by floods due to the dam’s failures and to measure the damage risk. The failures were simulated using HEC-RAS 5.0.7 with four scenarios, such as overtopping, upper-piping, middle-piping, and bottom-piping. The simulation result showed that the Tamblang Dam’s failure with the overtopping scenario had the worst impact as it has the highest velocity and discharge compared to the other scenarios. The overtopping scenario inundated 355 ha areas along the river. Six villages would become the victims, namely, Bengkala, Bila, Menyali, Jagaraga, Bungkulan, and Kubutambahan. Tamblang Dam failures’ danger level was figured out in this research according to the PenRis Hazard Classification of Dams in Indonesia. For this case, it is found that 2527 residents are at immediate risk of flooding caused by the failures. Therefore, following the Danger Classification from the Public Work and Housing Guidelines of Indonesia, it can be stated that the Tamblang Dam is a 4-class dam with an extremely high danger status level.
This research introduces the Smart Direct Couple Motor Operated Valve (SDCMOV), designed to enhance agricultural efficiency and sustainability. SDCMOV automates the distribution of water and fertilizers in vegetable f...
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The significance of flow rate sensors and horizontal water pipes in various applications highlights their crucial role in enhancing fluid dynamics monitoring and management. This study aims to map the research landsca...
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ISBN:
(数字)9798331529376
ISBN:
(纸本)9798331529383
The significance of flow rate sensors and horizontal water pipes in various applications highlights their crucial role in enhancing fluid dynamics monitoring and management. This study aims to map the research landscape through a bibliometric analysis of flow rate sensors and horizontal water pipes. The analysis includes author analysis, affiliation analysis, country or territory analysis, source analysis, keyword analysis, trend topic analysis, and thematic map analysis. Bibliometric analysis helps policymakers, industry professionals, and researchers navigate the extensive body of literature, ensuring that efforts in flow rate sensor technology and horizontal water pipe research align with current trends and contribute effectively to advancing knowledge in these areas. The results will serve as a valuable guide, helping stakeholders understand the evolving research landscape, make informed decisions, and gain deeper insights into the trajectory of research in flow rate sensors and horizontal water pipes.
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