ENGINEERING RESEARCH PAPERS

capacitor IEEE PAPER 2018




A 380 V High Efficiency and High Power Density Switched- Capacitor Power Converter using Wide Band Gap Semiconductors
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ABSTRACT . State-of-the-art switched- capacitor DC-DC power converters mainly focus on low voltage and/or high power applications. However, at high voltage and low power levels, new designs are anticipated to emerge and a power converter that has both high efficiency and

Preparation and Characterization of Activated Carbons from Oxygen-rich Lignite for Electric Double-layer Capacitor
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Activated carbons (ACs) were derived from oxygen-rich lignite via chemical activation for electric double-layer capacitor (EDLC). The preparation parameters affect the pore structure and specific surface area of ACs were discussed in this work. The pores of the ACs are

Synthesis of Porous Carbon Sphere Based on Starch and Its Application of Electric Double Layer Capacitor
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The present work reported the preparation of mesoporous activated carbon spheres (MCS) based on potato starch through the activation of CO2. N2 adsorption strategy was employed to investigate the influences of activation time and temperature on the MCS properties. On

Impact of Thyristor Controlled Series Capacitor on Voltage Profile of Transmission Lines using PSAT
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ABSTRACT In power system voltage stability is very important in order to maintain the voltage within the defined limits. The demand of electrical power increases in the last decade due to the lack of expansion in the generation and transmission network. The available

Single Input Multiple Output by Capacitor Start Single Phase Induction Motor During Running Condition
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ABSTRACT -The aim of our project is to produces the power with the help of capacitor winding of induction motor by separating the capacitor winding during starting of motor by controlling IC 555. Single phase induction motor (SPIM) plays major role in domestic and industrial

New Control Method for Power Decoupling of Electrolytic Capacitorless Photovoltaic Micro-Inverter with Primary Side Regulation
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ABSTRACT This paper presents a novel power decoupling control scheme with the bidirectional buckboost converter for primary-side regulation photovoltaic (PV) micro- inverter. With the proposed power decoupling control scheme, small-capacitance film

Dynamic Response Analysis of Quasi Z-source Based Fuel Cell with Super Capacitor
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ABSTRACT In this paper, the dynamic analysis of the quasi z-source inverter control system is considered as the interface converter for fuel cell. For this purpose, the dynamic modeling of the fuel cell and its interface converter are used to design controllers. However, due to the

A High-Voltage Low-Power Switched- Capacitor DC-DC Converter Based on GaN and SiC Devices for LED Drivers
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1 ABSTRACT Previous research on switched- capacitor DC-DC converters has focused on low- voltage and/or high-power ranges where the efficiencies are dominated by conduction loss. Switched- capacitor DC-DC converters at high-voltage (> 100 V) low-power (10 W) levels

INFLUENCE OF PULSED ELECTROPHORETIC DEPOSITION OF GRAPHITIC CARBON NANOTUBE ON ELECTROCHEMICAL CAPACITOR PERFORMANCE
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ABSTRACT Carbon nanotube (CNT)-based electrochemical capacitor (EC) has been actively studied as a high-power density energy storage for the portable product and energy sustainable development. The present work reports the deposit yields and graphitic

Dynamic Modeling and Simulation of a Wind/Fuel Cell/Ultra- CapacitorBased Hybrid Power Generation System
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ABSTRACT : In recent days, Integration of conventional energy systems with non- conventional systems known as hybrid systems is the trending topic in research, as one system cannot deliver all the desired characteristics. In this thesis, we are interested in

REVIEW ON OPTIMAL ALLOCATION OF CAPACITOR IN RADIAL DISTRIBUTION SYSTEM
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ABSTRACT -In recent years, optimal allocation and sizing of shunt capacitor in Radial Distribution Network (RDN) for minimizing the real power loss and total cost of the system. Loss Sensitivity Factor (LSF) approach is utilized to identify sensitive buses for capacitor

A Comparative Analysis of the Voltage Profile Stability for the Wind Farm Using Capacitor Bank and STATCOM
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ABSTRACT The performance of the STATCOM reactive power control system is powerful and robust can open the opportunities in the field of renewable energy system to make them more reliable and efficient. Wind generation is currently the major form of new renewable

Enhancing of Power Quality on Distribution Grid by Integrated Dynamic Voltage Restorer-Ultra capacitor Design
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ABSTRACT In this project Cost of different energy storage technologies is diminishing quickly and the integration of these innovations into the power grid is turning into a reality with the approach of smart grid. Dynamic voltage restorer (DVR) is one item that can give

Optimal Planning using WOA for the Capacitor Placement in the Presence of PV Systems in Distribution Networks
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ABSTRACT : The distributed photovoltaic (PV) generation can have an impact on the voltage regulation of distribution feeder as the PV systems have the ability to inject reactive power into the network. Over the decades, the penetration level of solar PV is rising into the

Ultra Capacitor : An Overview And Its Role As Conditioner In Power System
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ABSTRACT To meet enormous load requirements, power industry is harvesting Distributed Energy Resources (DERs). The impact of DERs is on distribution grid is not unavoidable ie power quality issues and intermittencies. To mitigate power quality problems and

Voltage Profile ImprovementLoss Reduction using Optimal Capacitor Placement
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ABSTRACT : Electricity is very essential requirement for our day to day life. Electricity comes to us from the power generating stations through power transmissiondistribution networks. The load centres or the consumers are at the last stage of power transmission. For the stable

Optimal Allocation of Capacitor in Radial Distribution System using PSO
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ABSTRACT The losses at distribution level contribute a major portion of power system losses. Proper sizes of shunt capacitors in unbalanced radial distribution systems can reduce some portion of this loss and can improve the voltage profile of the feeder section. The PSO-DV

MITIGATION OF POWER CAPACITOR SWITCHING TRANSIENTS USING RESISTIVE CAPACITIVE SWITCHING
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ABSTRACT This paper presents the mitigation of power capacitor switching transients using new technique of Resistor and Capacitor switching. Generally, the switching transients are the power quality disturbances that comprise destructive high magnitudes of current and ABSTRACT This paper studies integration aspects of DC blocking capacitors in differential high speed bus channels. The presence of a DC blocking capacitor in the signal path can present an impedance mismatched medium which can lead to signal degradation

Single-Inductor Multi- Capacitor Buck Converter for High Peak-to-Average Power Envelope Tracking
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ABSTRACT A linear power amplifier (PA) is used for powering high-bandwidth modulated signals with high peak-to-average power ratio (PAPR). The efficiency of a PA significantly degrades using a fixed supply voltage, and an envelope-tracking (ET) power supply remains

ROLE OF DVR DEVICE WITH FLYING CAPACITOR FOR VOLTAGE SAG AND SWELL MITIGATION
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ABSTRACT : Power Quality problem in a system leads to various disturbances such as voltage fluctuations, transients and waveform distortions those results in a mis operation or a failure of end user equipment. There are different types of custom power devices like Distribution

Modelling Cross-Regulation in a Single Switched Capacitor DC-DC Converter
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SUMMARY The letter proposes to model cross-regulation in a dual-output switched capacitor converter (SCC) by three equivalent resistances connected in delta circuit. It is shown that as opposed to linear equivalent (output) resistance of single-output SCCs, these

Three-Phase Four-Wire Distribution System using Fuzzy Controller based Constant Voltage Control of DC Capacitor for Active Load Balancer
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ABSTRACT : Unbalance in the loads often arise in three-phase four-wire distribution systems causing unbalanced voltages and currents and further results in high neutral currents and engender loss in the distribution transformers and therefore low system efficiency. So, to

Control and Operation of the MMC-Based Drive with Reduced Capacitor Voltage Fluctuations
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ABSTRACT The Modular Multilevel Converter has emerged as a suitable topology for high power drive applications. However, the voltage fluctuations of its floating capacitors increase the control complexity of the converter. In this paper, the MMC dc-port voltage is manipulated

Performance Evaluation of Thyristor Controlled Series Capacitor Based Controller for Power System Damping
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ABSTRACT Power system damping through coordinated design of a power system stabilizer (PSS) and a thyristor controlled series capacitor (TCSC) based controller is present in this paper. The design problem of the coordinated PSS and TCSC based controller is formulated

CAPACITOR SWITCHING TRANSIENT: A REVIEW
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ABSTRACT Power system components are expose to transient oscillation of voltage and current produced by energizing and de-energizing devices. These transient may be short lived, but they have high peak values and frequency much greater than power system

Protection Of Series Capacitor Compensation To Improving Power Capability Of A Transmission Line
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ABSTRACT This paper introduces the series capacitor compensation method which considers as a leading technique to improve the power system capability; with the analysis of the location of inserted capacitor degree of compensation, and simulate a protection scheme for

IMPROVEMENT OF POWER QUALITY OF AC MICROGRID WITH ENERGY SYSTEM USING BY ELECTRIC DOUBLE LAYER CAPACITOR
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ABSTRACT : Solar, wind and other renewable energy sources are becoming an important part of energy supply to the power grid. Hybrid AC Microgrid and Energy Storage Systems (HESS) with renewable energy sources can make intermittent renewable energy sources more
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