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With the global energy crisis and the increasingly serious environmental problems, renewable energy becomes a future energy trends. As an important form of renewable energy used, distributed generation (DG) has been rapid development in... more
With the global energy crisis and the increasingly serious environmental problems, renewable energy becomes a future energy trends. As an important form of renewable energy used, distributed generation (DG) has been rapid development in the world. However, large scale integration of DGs will bring operating and challenges to the power system network. A microgrid is an important means to this problem, and gained much attention worldwide. This paper introduces the basic concept of microgrid, and analyze the new trends and challenges of the development of microgrids, as well as some technologies. These trends and challenges include higher renewable energy integration, multi energy forms, multilevel architecture, demand side management and generalized storage.
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This article was prepared based on the Community Service Institute (PKM) of the 2019 PLN Institute of Technology which was carried out in the field of sports facilities for residents of RT002 / 05 BTN Cantiga Petir Cipondoh Tangerang with... more
This article was prepared based on the Community Service Institute (PKM) of the 2019 PLN Institute of Technology which was carried out in the field of sports facilities for residents of RT002 / 05 BTN Cantiga Petir Cipondoh Tangerang with problems of frequent illegal connection or theft of electricity from electric poles for street lighting and there are still locations that require street lighting. The Purpose of Community Service Activities (PKM) This is so that the public can know the use of Solar Electricity for the community and as an implementation with theory and practice is applied to the public about the development of solar electricity technology in current energy. Through this activity, the community of Cipondoh Lightning Cantiga residents learned about the use of solar electricity for the surrounding community to turn on the PJU Lights in the RT 002/05 BTN Cantiga Petir Cipondoh Tangerang Sports Field.
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The electrical energy produced by fossil fuel has two disadvantages: the environment pollution, and nonrenewable nature. To overcome these problems, Photovoltaic (PV) technology has been developed. But, the characteristics of the PV... more
The electrical energy produced by fossil fuel has two disadvantages: the environment pollution, and nonrenewable nature. To overcome these problems, Photovoltaic (PV) technology has been developed. But, the characteristics of the PV output power depending on the intensity of the existing sunlight, so it can cause instability in the system. This instability can be minimized by combining a PV system with a battery. This study aims to conduct transient stability analysis on the Baubau power system when a 10 MWac hybrid PV-battery power plant is added. In this study, the power flow and stability analysis of the Baubau system was simulated using ETAP software and the energy mix from power plants was simulated using Homer Pro software. From the simulation result can be concluded that installation of 10 MWac PV + 4 MWh batteries in the Baubau System did not harm the overall system stability. The hybrid system can increase the power capacity and installed power of the system.
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Batteries generally function as electricity storage. The process of storing and using electricity is done by charging and discharging. In the Solar Power Generation system the function of the battery is very important to distribute... more
Batteries generally function as electricity storage. The process of storing and using electricity is done by charging and discharging. In the Solar Power Generation system the function of the battery is very important to distribute electrical energy from the solar panels to the load. In order for the process of storing and distributing electrical energy to take place normally and optimally, a management system is needed. This paper discusses the work functions and methods of the battery management system (BMS) and compares the types of batteries used in solar power plants from Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Po) ) and Lead Acid (VRLA). so that the operation of the solar power generation system operates more optimally. The function of the Battery Management System (BMS) is to manage the process of charging and discharging the battery, as well as monitoring the condition of the battery, calculating secondary data, reporting battery data, protecting the battery, managing conditions around the battery, and maintaining battery balance. In the Study on Optimization of Battery System Management in Lithium and Lead Acid Batteries at the New Renewable Energy Research Center at the IT PLN
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BESS (Battery Energy Storage System) is an essential element of future power system to improve a stability and frequency response in power system. In addition, through the development of technology and the decline in the price, the use of... more
BESS (Battery Energy Storage System) is an essential element of future power system to improve a stability and frequency response in power system. In addition, through the development of technology and the decline in the price, the use of ESS is gradually increasing. In particular, the recent use of lithium-ion battery has been increasing in power grid. This paper presents the architecture and operation strategy of the battery energy storage system (BESS) demonstration project located in island Buton, Baubau Southeast Sulawesi, Indonesia. This project has a capacity of 4 MW / 8 MWh that uses Lithium-ion batteries (LiB). The BESS uses eight (8) LiBs with an energy capacity of 1-MWh each. Two batteries are connected to one PCS (ES-PCS connection), each with a 1-MW power output capacity. The ES-PCS configuration being controlled by the PMS is connected to the grid thru a step up transformer (380 V / 20 kV). As of this writing, the BESS has two fully functional applications as controlled by the PMS, load leveling, Frequency Regulation and wind power smoothing.
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One of the planned areas to be implemented is the construction of a 2x60 MW coal-fired steam power plant in Pulang Pisau District, Central Kalimantan. The development of this steam power plant aims to meet the demand for electricity in... more
One of the planned areas to be implemented is the construction of a 2x60 MW coal-fired steam power plant in Pulang Pisau District, Central Kalimantan. The development of this steam power plant aims to meet the demand for electricity in Central Kalimantan which has been supplied using barito systems and isolated isolated systems generated from diesel generators. The 80% own barito system is concentrated in South Kalimantan with an electrical interconnection system using 150 KV and 70 KV transmission lines covering South and Central Kalimantan that are connected to hydro, coal and diesel power plants. The other 20% is produced from Central Kalimantan, specifically the capital of Palangkaraya and Katingan regency. Based on the simulation done using DlgSILENT software on barito system after the entry of PLTU Pulang Pisau shows the total change of power supply and the occurrence of voltage changes where the peak load time before PLTU Pulang Pisau enter the total power system generated by...
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High resistance grounding one of the ways ptotection generator for the single phase earth fault. High resistance grounding utilizes a distribution transformer with a primary voltage rating greater than or equal to the line to neutral... more
High resistance grounding one of the ways ptotection generator for the single phase earth fault. High resistance grounding utilizes a distribution transformer with a primary voltage rating greater than or equal to the line to neutral voltage rating of the generator. The distribution transformer should have sufficient overvoltage capability so that it does not saturate on single line to ground faults with the generator operated at 105% of rated voltage. The power dissipated in resistor is approximately equal to the reactive volt-amperes of the zero sequence capasitive reactance of the stator windings. For High resistance grounding to be effective, the size of resistor must be carefully selected for each system. IEEE Standard C37.101 provides a detailed example of how to determine the size of the ground resistor to meet the requirements cited above, as well as calculate the resulting ground currents and voltages.
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Indonesia has an abundant renewable energy source. One of them is wind energy resources. Unfortunately, Indonesia's wind energy resource is not fully utilized, especially for application in high-rise buildings. The paper investigates... more
Indonesia has an abundant renewable energy source. One of them is wind energy resources. Unfortunately, Indonesia's wind energy resource is not fully utilized, especially for application in high-rise buildings. The paper investigates the potential of energy production from the horizontal-axis wind turbine (HAWT) and the vertical-axis wind turbine (VAWT) on the rooftop of a university building in Indonesia. The wind speed data were measured on the rooftop of the building for seven months. The data was analyzed using Weibull distribution. Based on the probability density function of the Weibull distribution, the potential energy production was calculated using the power curves from the manufacturer. Comparing energy production between HAWTs and VAWTs has shown that VAWTs can produce more energy than HAWTs. Using six turbines, VAWTs can produce 48,476 kWh. On the other hand, with four turbines, HAWTs can produce 41,729 kWh. The reason is that VAWT requires shorter distance requirem...
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Nowadays application of new and renewable energy as main resource of power plant has greatly increased. High penetration of renewable energy into the grid will influence the quality and reliability of the electricity system, due to the... more
Nowadays application of new and renewable energy as main resource of power plant has greatly increased. High penetration of renewable energy into the grid will influence the quality and reliability of the electricity system, due to the intermittent characteristic of new and renewable energy resources. Smart grid or microgrid technology has the ability to deal with this intermittent characteristic especially if these renewable energy resources integrated to grid in large scale, so it can improve the reliability and efficiency of the grid. We plan to implement smart microgrid system at Sekolah Tinggi Teknik PLN as a pilot project. Before the pilot project start, the feasibility study must be conducted. In this feasibility study, the renewable energy resources and load characteristic at the site will be measured. Then the technical aspect of this feasibility study will be analyzed. This paper explains that analysis of ths feasibility study.
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An experimental study is conducted in search of the much needed experimental method for practical and minimally destructive analysis of hydrogen (H) and deuterium (D) in a nuclear power plant. For this purpose, a picosecond (ps) Nd:YAG... more
An experimental study is conducted in search of the much needed experimental method for practical and minimally destructive analysis of hydrogen (H) and deuterium (D) in a nuclear power plant. For this purpose, a picosecond (ps) Nd:YAG laser is employed and operated with 300-500 μJ output energies in a variety of ambient gases at various gas pressures. The sample chamber used is specially designed small quartz tube with an open end that can be tightly fitted to the sample surface. It is found that ambient Ar gas at reduced pressure of around 0.13 kPa gives the best spectral quality featuring fully resolved H and D emission lines with clearly detectable intensities and practically free from surface water interference. The D emission intensities measured from zircaloy plates containing various concentrations of D impurity are shown to yield a linear calibration line with extrapolated zero intercept, offering its potential application to quantitative analysis. The estimated detection l...
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A systematic study has been performed on the spectral characteristics of the full spectrum of He emission lines and their time-dependent behaviors measured from the He gas plasmas generated by a nanosecond neodymium-doped yttrium aluminum... more
A systematic study has been performed on the spectral characteristics of the full spectrum of He emission lines and their time-dependent behaviors measured from the He gas plasmas generated by a nanosecond neodymium-doped yttrium aluminum garnet laser. It is shown that among the major emission lines observed, the triplet He(I) 587.6 nm emission line stands out as the most prominent and long-lasting line, associated with de-excitation of the metastable triplet (S = 1) excited state (1s 1 3d 1 ). The role of this metastable excited state is manifested in the intensity enhancement and prolonged life time of the Cu emission with narrow full width half-maximum, as demonstrated in an orthogonal double-pulse experiment using a picosecond laser for the target ablation and a nanosecond laser for the prior generation of the ambient He gas plasma. These desirable emission features are in dire contrast to the characteristics of emission spectra observed with N2 ambient gas having no metastable ...
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In the distribution of electrical energy from the power plant to the consumer occurs energy loss or shrinkage energy. Losses of energy in a electrical system must always exist. This is due to the content of prisoners on permanent... more
In the distribution of electrical energy from the power plant to the consumer occurs energy loss or shrinkage energy. Losses of energy in a electrical system must always exist. This is due to the content of prisoners on permanent conductor and the nature of the network itself. In the process of calculating the energy losses experienced many difficulties because of the extensive distribution network. So we need a method to calculate the shrinkage. By performing measurements on distribution substations and calculate the voltage drop across the channel as well as custody and subsequently look for peak power losses and average power losses. Next calculate the energy is channeled so that it can calculate energy losses.