high-voltage IEEE PAPER 2017
AN INTERLEAVED HIGH STEP-DOWN CONVERSION RATIO BUCK CONVERTER WITH LOW SWITCH VOLTAGE STRESS
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Conventional IBC in high input voltage or high power applications have disadvantages like, voltage stress of switch equal to input voltage so high voltage rated devices are used. High-voltage rated elements suffers from high
A Non-isolated High Step-up DC/DC Converter with Low Voltage Stress for Renewable Energy Applications
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Among them, photovoltaic (PV) sources, fuel cells and wind energy have attracted much attention in recent years [1-3]. Unfortunately, the output voltages of PV arrays and fuel cells are relatively low, but a high voltage DC bus is needed to supply the grid [4]. Hence, a high step
Investigation of high voltage induced damage of GaN grown on Si substrate by terahertz nano-imaging and spectroscopy1 May 18, 2017
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GaN is a wide band-gap semiconductor, important for high power and high temperature device applications. In this note, we report on a large-domain-size polycrystalline gallium nitride grown on silicon substrate (Fig. 1) that was investigated by ARPs terahertz nano-
Fuel Cell Based Interleaved Boost Converter for High Voltage Applications
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In this paper presents a fuel cell based interleaved boost converter for high voltage applications is proposed. An interleaved boost converter having two-winding coupled inductors for high step-up conversion with high efficiency is obtained. The proposed method
Quest for a New Insulation Gas with a Low Impact on the Environment to Replace Sulfur Hexafluoride (SF6) Gas in High-Voltage Power Network Applications
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Abstract: The growing environmental challenge of electrical energy systems has prompted a substantial increase in renewable energy generation. Such generation systems allow for significant reduction of CO2 emissions compared with a traditional fossil fuel plant.
High Voltage Gain DC-DC Converter with Reduced Components Voltage Stress for Photovoltaic
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In this paper a novel high step up single switch dc dc converter with high efficiency is proposed. In this converter, high voltage gain is achieved using coupled inductor and diode capacitor techniques. Hence, there is no need to use extreme duty cycle. Moreover, the AbstractThe control area network (CAN) wired communi-cation standard is becoming the bus of choice for many space applications. However, the severe2 to 7 V common-mode and3 to 16 V failure tolerance requirements of the CAN bus driver have restricted its
High Specific Li-ion cells based on high voltage materials
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This paper presents the results obtain in the frame of the ESA TRP: High specific Li-ion cells based on high voltage materials. As there is a need of high energy cells for Space application, a low TRL study was performed by Saft, CEA and ADS in order to developed high
New Controller for High Voltage Converter Modulator at Spallation Neutron Source
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Abstract The Spallation Neutron Source (SNS) has developed a new control system for the High Voltage Converter Modulator (HVCM) at the SNS to replace the original control system which is approaching obsolescence. The original system was based on controllers for Abstract For electroporation experiments it is essential to generate, in a controlled way, repetitive high-voltage pulses, with precise voltage amplitude and pulse widths, in order to deliver well-defined energy packages to biologic loads. This transient energy flow can be
A novel design of insulated core transformer high voltage power supply
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Abstract Insulated core transformer (ICT) high voltage power supply is an ideal model for industrial radiation accelerator at energy below 1MeV. Compared to the traditional scheme, a novel ICT high voltage power supply was put forward. Conventional silicon steel sheets
High Voltage Gain Half-Bridge Quasi-Switched Boost Inverter with Reduced Voltage Stress on Capacitors
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Abstract: In this study, an improved topology of half-bridge switched boost inverter with low voltage stress on capacitors is proposed. The proposed half-bridge quasi-switched boost inverter, in comparison with the half-bridge Z-source inverter with two Z-networks, has less
A Parallel Input Series Output DC/DC Converter with High Voltage Gain
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Abstract-The importance of high voltage gain dc/dc converter is increasing day by day. Conventional boost converter is unable to provide high gain without extreme duty ratio. An input parallel output series boost converter can provide a high step up gain. The converter
High Voltage Guided Pulmonary Vein Isolation In Paroxysmal Atrial Fibrillation.
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Abstract Ablation of the pulmonary vein (PV) antrum using an electroanatomic mapping system is standard of care for point-by-point pulmonary vein isolation (PVI). Focused ablation at critical areas is more likely to achieve intra-procedural PV isolation and decrease
OPTIMIZATION OF SURFACE RESISTIVITY AND RELATIVE PERMITTIVITY OF SILICONE RUBBER FOR HIGH VOLTAGE APPLICATION USING RESPONSE
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Silicone Rubber (SiR) is considered as one of the most established insulator in High Voltage (HV) industry. SiR possess a great function ability such as its lighter weight, great heat resistance and substantial electrical insulation properties. Dynamic research were
N, N-diethyl-trimethylsilylamine as an Electrolyte Additive for Enhancing Electrochemical Performance of High Voltage Spinel Cathode
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In this work, N, N-diethyl-trimethylsilylamine (EMSA) is used as an electrolyte additive for a 5 V-class high voltage LiNi0. 5Mn1. 5O4 cathode. In presence of 0.5 wt.% EMSA, Li/LiNi0. 5Mn1. 5O4 cell exhibits an attractive cycling performance compared to the cell without
Loss Analysis of Insulated Core Transformer High Voltage Power Supply
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Abstract Insulated core transformer (ICT) electron accelerator is an ideal prototype in low energy radiation processing industry, and ICT high voltage power supply is the essential apparatus. Conventional ICT high voltage power supply uses laminated silicon steel sheets
Topological and Statistical Analysis for the High-Voltage Transmission Networks in the Korean Power Grid
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ABSTRACT A power grid is one of the most complex networks and is critical infrastructure for society. To understand the characteristics of a power grid, complex network analysis has been used from the early 2000s mainly for US and European power grids. However, since
Enhanced high voltage cyclability of LiCoO2 cathode by
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Title: Enhanced high voltage cyclability of LiCoO2 cathode by adopting poly[bis-(ethoxyethoxyethoxy)phosphazene] with flame-retardant property as an electrolyte additive for lithium-ion batteriesAuthors: Mingjiong Zhou, Chenyang Qin, Zhen Liu, Li Feng, Xiaoru
A Cryogenically Cooled High Voltage DC Photogun
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Abstract Linear electron accelerators and their applications such as ultrafast electron diffraction require compact high-brightness electron sources with high voltage and electric field at the photocathode to maximize the electron emission and minimize space-charge
Pipelines Corrosion Due to the Electromagnetic Pollution caused by the High Voltage Power Lines
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AbstractThis paper studies the effect of the electromagnetic pollution caused by the high voltage power lines on the corrosion of the buried pipeline. In this objective, the finite element method (FEM) was used to calculate the magnetic field distribution and the induced
Successful Laboratory-Industrial Partnerships: the Cornell-Friatec Segmented Insulator for High Voltage DC Photocathode Guns
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Abstract High voltage DC photocathode guns currently offer the most reliable path to electron beams with high current and brightness. The performance of a photocathode gun is directly dependent on its vacuum and high voltage capabilities, determined in large part by
High-Precision Ramped High-Voltage Source With Up to 50 kV Output Voltage
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Abstract This report describes the precision high-voltage ramped high-voltage power system. The output voltage up to 50 kV with 10 ppm precision. The power system consists of the 3 kW high-voltage source based on multiplier, precision high-voltage divider with digital
Turn-on Loss Reduction for High Voltage Power Stack Using Active Gate Driving Method
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Abstract This paper presents an improved approach towards reducing the switching loss of insulated gate bipolar transistors (IGBTs) for a medium-capacity-class power conditioning system (PCS). In order to improve the switching performance, the switching operation is The Internet of Things (IoT) refers to a growing trend to create relatively simple devices that interconnect and share data independent of computers or human intervention [1]. In these applications, a continuous power supply system is necessary. There are many research
A Short History of High-Voltage Direct Current Cables and Space Charge Measurements at Delft University of Technology
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Around 1990, the attention for subsea high-voltage direct current (HVDC) cables strongly increased especially due to the deployment of a large number of HVDC connections in the northwest of Europe. In Delft, this triggered the first research projects in the field of HVDC
Prospective field emitters for miniature high voltage electronic devices operating at technical vacuum conditions
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The use of field emitters is promising for the creation of systems for formation of electron flows in many electronic devices, since they do not require heating and are inertialess. Until recently, the field emitters were used mainly in ultra-high vacuum, low current and low
OF A MIXTURE OF SYNTHETIC AND NATURAL ESTERS IN TERMS OF THEIR APPLICATION IN HIGH VOLTAGE POWER TRANSFORMERS WLASCIWOSCI
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Novel High Voltage Buck Boost Converter
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Abstract This paper presents a new high efficiency buck boost dc-dc-converter with low voltage renewable energy resources. The proposed converter utilizes a low voltage DC supply and boost it to required dc voltage. In this paper Pi controller is used with snubber
A Novel Method of Auxiliary Power Supply Used in Wide-Range High Voltage Input DC-DC Converter
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Abstract In high voltage input DC-DC converter, auxiliary winding of isolation transformer is usually used to supply power for control circuit. Due to the widerange of input voltage, the variable output voltage of auxiliary winding will cause a series of problems, such as variable
Application of High-Voltage Power Supply on Electrostatic Precipitator
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Abstract This article firstly describes the main technical parameters and performance of the high power supply of electrostatic precipitator, and then describes the structure, principle and characteristic of power supply of electrostatic precipitator, and finally analyses the
300 kV High-Voltage Source With Up to 15 kW Output Power
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Abstract The presented report contains the description of highvoltage source with output voltage up to 300 kV and output current up to 50 mA. The source consist of the chopper with IGBT switches working with a principle of pulse-width modulation and the full H-bridge
A New Hybrid Multilevel Inverter Topology for Medium and High Voltage Applications
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Abstract: In this article, a new hybrid multilevel inverter topology is proposed for medium and high voltage applications with new carrier based modulation techniques are presented. The performance of the developed topology has been realized in terms of a number of switches,
Market Survey Technical Description Coaxial High Voltage Cable (RG-220/U type)
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Abstract In order to be considered as a potential bidder for the forthcoming invitation to tender, the firm shall demonstrate the fulfilment of the qualification criteria by completing the present Qualification Questionnaire and by providing the requested documents and
High Voltage Components in Commercial Vehicles
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A Novel Clamp-Mode Coupled-Inductor Boost Converter with High Step-Up Voltage Gain
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The conventional power electronic circuit used for stepping up a DC voltage is a boost converter. In theory, the boost converter can produce a high voltage gain when operated at an extreme duty cycle (ie the duty cycle approaching one).
Latest advances of LLC converters in high current, fast dynamic response, and wide voltage range applications
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Index TermsLLC, review, survey, current sharing, multi- phase, interleave, phase shedding, passive impedance match, SR drive, fast dynamic, current mode control, current sensing, wide voltage range, hold up, high voltage gain.
Evaluation of the risk of occupation a diseases caused by electromagnetic field generated by extra-high voltage electric installations
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Research objective. Based on the applicable hygienic classification of working conditions, and using the systemic and risk-oriented approaches to develop and improve the techniques for evaluating the risk of occupational diseases in staff caused by electric power
High-Voltage Power Supply for GOG-1001
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Abstract The submitted report contains the description of the highcurrent high-voltage quasipulse four-channel laser pumping power supply. Channels are the completely identical. It is possible to feed up to 10 kJ on each channel with up to 5 kA of output current.
Magnet Wire with Enhanced Tolerance for High Frequency Voltage
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Long duration partial discharges begin to erode the insulation films, resulting in dielectric breakdown (Fig. 2). To extend the withstand voltage life of a motor, its magnet wire must prevent the generation of partial charge even when high-frequency, high voltage power is applied.
HIGH STEP-UP DUAL SWITCH CONVERTER WITH COUPLED INDUCTOR AND VOLTAGE MULTIPLIER FOR GRID CONNECTED SYSTEM
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etc. In those applications, boost dc/dc converters generally step up the voltage to the high voltage output. For that reason, to obtain a high voltage gain, many converter topologies were reported [3]-[6] for this application. Direct
Partial Discharge Analysis in High Voltage Current Transformers
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ABSTRACT: In High Voltage (HV) electrical power systems, variety of materials (solid, liquid and gaseous) is used for insulation purpose to protect the incipient failure in Current Transformers. Most of insulating materials are not perfect in all respect and contains always
Enabling high voltage signal isolation quality and reliability
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Among its uses, isolation maintains signal integrity of the system by preventing highfrequency noise from propagating, protects sensitive circuitry from high-voltage surges and spikes, and provides safety for human operators. To ensure human safety, industrial
OPTIMIZATION OF ELECTRIC FIELD STRESS ON HIGH VOLTAGE INSULATOR
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ABSTRACT A method is described for optimizing the field stress on HV insulators by modifying their profile, seeking a uniform distribution of the tangential field along the insulator surface. This results in an increase of the onset voltage for surface flashover and in
Implementation of Wireless Sensor Network for Monitoring and Protection of High Voltage Transformer
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ABSTRACT: The paper proposes an innovative design to develop a system based on AVR microcontroller that is used for monitoring the voltage, current and temperature of a distribution transformer in a substation and to protect the system from the rise in mentioned
THE PULSED HIGH VOLTAGE POWER SUPPLY FOR THE NICA BOOSTER INJECTION SYSTEM
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INTRODUCTION The NICA ion collider [1] is currently under construction at Joint Institute for Nuclear Research. The booster of the main accelerator NUCLOTRON is used for initial acceleration and cooling of ion beams. Electrostatic septum and three deflecting devices will be used in the
High step-up DC-DC converter based on Cockcroft-Walton (CW) voltage multiplier
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Two independent frequencies are used for the control strategy, one high frequency is used to minimize the size of the inductor and one low frequency is used according to the desired output voltage. The high voltage is obtained from a very low DC voltage.
Design and Implementation of High Voltage Generator for Medical Applications
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Abstract-A high voltage power supply is a very useful source which can be effectively used in many medical applications like medical imaging devices, blood analyzers, DNA equipment, robotic surgical devices and Electrocautery. In this study designing of High
High-Voltage Link for Transmitting Discrete Commands in Relay Protection, Automation and Control Systems
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Abstract: This article discusses the communication links used in power system relay protection to exchange discrete signals generated by the dry contacts. It explains why fiber- optic communication links, traditionally deemed as absolutely immune to external
Optimal design of a medium voltage high frequency transformer with a high isolation voltage (115kV)
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KeywordsHigh voltage, high frequency transformer; isolation designIn the literature several approaches are presented for designing a high voltage, high frequency transformer [3, 4, 5] with nominal output voltages between 50kV-60kV and a switching frequency of 20kHz.
GENERATOR OF HIGH-VOLTAGE PULSE FOR HIGH-CURRENT ACCELERATOR OF DEUTERON WITH LASER STARTS
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Abstract The report deals with the source of pulsed high voltage, and simultaneously, source of the pulsed current for the magnetic insulation of electrons near the cathode that was developed for a high-current accelerator of deuterons with laser-plasma anode. The
Micronutrients Behaviour in Botanic Habitats As Affected by High Voltage-Electromagnetic Field
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ABSTRACT: Calotropis proceragrown near high voltage-transmission electricity towers was selected to investigate the effect of electromagnetic field (EMF) on micro-nutrient content in leaves. Sampling was performed at four different high voltage-towers built in different years
Simulation of Pulsed High Voltage DC Source And Blumlein Transmission Line
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Abstract: In the reported article, we have simulated the pulsed high voltage direct current (DC) source and Blumlein transmission line by Multisimulation13 (National Instruments, Inc). In the generation of high voltage pulses at the optimum repetition rate, we have observed
Improved generator performance with a nanocomposite high voltage insulation system for stator windings A status report
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Abstract The flexible peak load operation of conventional power plants raised from fast growth of renewable energy request for improved generator design solutions. As the stator winding is a key component of hydro and turbine generators, a fundamental research
AN INSPECTION ROBOT FOR HIGH VOLTAGE POWER TRANSMISSION LINE
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Abstract-The procedure used for inspection and verification of damages in cables is highly dependent on the experience of a skilled technician who, using binoculars, covers the transmission lines in a helicopter, and is able of visualing points where seems to exist
Effect of range of motion exercises and high voltage tiny impulses electrical stimulation on functional activity of the upper limb postmastectomy
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Abstract: Purpose: to evaluate effect of range of motion exercises and high voltage tiny impulses electrical stimulation on functional activity of the upper limb postmastectomy. Methods of evaluation: Visual analouge scale (VAS) and functional assessment of the
A NEW CONTROL STRATEGY FOR HIGH VOLTAGE BI-DIRECTIONAL DC-DC CONVERTER BASED HYBRID ELECTRIC VEHICLE USING STATEFLOW
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Abstract A couple of decade ago when auto engineers decided to increase the voltage level of electrical power system drive, it was the advancement of silicon technology supporting their dream. Today the power electronics circuits play an important role in the success of
A NOVEL MULTI CARRIER PWM BASED MULTILEVEL INVERTER FOR HIGH VOLTAGE APPLICATIONS
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Abstract In recent days Multilevel inverter (MLI) technologies become a incredibly main choice in the area of high power medium voltage energy control. Though multilevel inverter has a number of advantages it has drawbacks in the vein of higher levels because of using
HIGH VOLTAGE POWER SUPPLY AND CROWBAR PROTECTION
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Connected in parallel to MWT and provides an easiest path for energy to flowLimit the energy into the MW tubes within the specified value HIGH VOLTAGE POWER SUPPLY AND CROWBAR PROTECTION Subhash Joshi TG, CDAC, Trivandrum1.0mx0.65mx0.53m Indian patent filed
DESIGN CONSIDERATIONS OF HIGH VOLTAGE BATTERY PACKS FOR ELECTRIC BUSES
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ABSTRACT The use of electric vehicles (EV) is gradually increasing worldwide. The battery system, which is the heart of the EVs, consists of cells, battery modules and battery packs that are realised by combining battery modules. A battery management system is employed
Controlled switching in high voltage power networks: case studies in the South African and Dutch transmission networks
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This document contains a student thesis (bachelors or masters), as authored by a student at Eindhoven University of Technology. Student theses are made available in the TU/e repository upon obtaining the required degree. The grade received is not published on the
Contemporary Voltage Quadrupler For High Step-Up DC-DC To Converter With High Output-Voltage Gain
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Therefore, in the centralized system, the PV panels are usually series connected in order to generate sufficiently high voltage. However, when the partialcompetitive solution as the secondary-side rectification circuits in the high voltage conversion applications.
A THREE-PHASE MULTILEVEL HYBRID SWITCHED-CAPACITOR PWM PFC RECTIFIER FOR HIGH-VOLTAGE-GAIN APPLICATIONS
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ABSTRACT This paper presents a three-phase multilevel power factor correction rectifier using the hybrid switched-capacitor concept is proposed. The converter is suitable for high- voltage-gain applications from conventional three-phase low-voltage sources. The three-
A NOVEL SOLAR/PV HIGH VOLTAGE GAIN CLOSED LOOP CONTROLLED DC-DC CONVERTER WITH TWO-INPUT BOOST-STAGES
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ABSTRACT: Dc-dc converter is a device which produces a dc output voltage when a dc input is given. If output voltage needed is higher than input voltage we go for boost converter. The conventional boost converter can be used for step up applications because of
Study of Electric Fields on High Voltage Composite Insulators under Polluted Conditions Using Artificial Neural Network
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AbstractThis paper attempts to apply artificial intelligent techniques in high voltage applications and especially to estimate the electric field distribution on a polluted insulator surface. The paper presents, a three-dimensional (3D) electric fields estimation program, to
Modeling of nonlinear loads in high-voltage network by measured parameters
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Abstract. The paper presents an algorithm for modeling nonlinear loads connected to the nodes of high-voltage network. The algorithm is developed on the basis of measured parameters of harmonic conditions. The high-voltage networks are extended. Many
High Gain DC-DC Converter with Voltage Multiplier using Pulse Generation
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Such systems transform light energy into electrical energy, and convert low voltage into high voltage via a step-up converter, which can convert energy into electricity using a grid-by-grid inverter or store energy into a battery set.
Soft Switching Converter with High Voltage Gain for Solar Energy Applications
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There has been drastic increase in the demand of electricity. DC-DC converter play vital role in the renewable energy sources like grid-connected power applications as PV arrays gives low voltage. Hence it is proposed to introduce a soft switching DC-DC converter with high
Quad low-to-high voltage translator with 3-state outputs
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The HEF4104B is a quad low voltage-to-high voltage translator with 3-state outputs. It provides the capability of interfacing low voltage circuits to high voltage circuits. For example low voltage Local Oxidation Complementary MOS (LOCMOS) and Transistor-Transistor Logic (TTL) to high
Comparative study and simulative analysis of high voltage and low voltage distribution systems for rural agricultural loads
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AbstractIn India, the total transmission and distribution losses are as high as 22.77 percentage and the theft of the electricity is also a huge issue. This scenario is not only in India but it is also there in many developing countries. To solve the issues related to high
UHF PD-DIAGNOSIS AT HIGH VOLTAGE CABLE TERMINATIONS INTERNATIONAL CASE STUDIES
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High voltage termintions are essential components in high voltage cable systems. A high reliability is given by high manufacturing quality and claimed company final testing. However onsite installation represent a considerable uncertainty for successful service of the system.
Offshore Wind Integration through High Voltage Direct Current Systems
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The total wind power capacity has increased more than seven times since 2005, as shown in Figure 1.1. By the end of 2015, wind energy represented 3.7% of the global electricity production and contributed to 15.6% of the renewable energy share [1]. Currently, wind
Research on Power Quality Real-Time Monitoring System For High Voltage Switch Gear
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ABSTRACT: As an important equipment of high voltage switch cabinet distribution plays a key role in the power system of power generation, transmission and distribution of electricity, and monitoring the operation of electrical parameters, based on virtual instrument
Advancements and Research in Engineering Computations Several component coupled inductor-based sepic converter for high-voltage wind energy systems
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ABSTRACT A coupled inductor based high step-up dc dc converter for high step-up applications is proposed. The concept is to utilize two capacitors and one coupled inductor. The two capacitors are charged in parallel during the switch-off period and are discharged in
MEASUREMENT AND CHARACTERIZATION OF CABLE LOSSES FOR HIGH VOLTAGE COAXIAL CABLES USED IN KICKER SYSTEMS
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Abstract In the framework of CERNs LHC Injector Upgrade, simulation models for kicker pulse generators have been improved. A key element in the conventional pulse generators, among many others, are the high voltage coaxial cables. Since they can have significant
The Response of a High Voltage Transformer with Various Geometries of Core Joint Design
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ABSTRACT The core losses in a three phase transformer can be significantly reduced by improving the core joint geometry. The researchers were applied numerous types of T-joint designs in order to reach the optimum design that can be used in three phase transformer to
Comparative Research into Transients by Switching of High Voltage Shunt Reactor
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AbstractThis article deals with results of performed studies of transient phenomena in application of controlled switching technique by switching high voltage 123 kV, 100 MVAr shunt reactor. First, for switching a single-pole hydraulically operated SF6 circuit breaker has
Simulation-based optimum Bayesian experiment design for high-voltage conductors
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Abstract. The aim of the present work is to apply a Bayesian framework coupled with information theoretic design criteria based on the expected gain in Shannon information from the prior to the posterior distribution of the model parameters in order to design
Design and Analysis of Integrated CMOS High-Voltage Drivers in Low-Voltage Technologies
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Abstract With scaling technology, the nominal I/O voltage of standard transistors has been reduced from 5.0 V in 0.25-μm processes to 2.5 V in 65-nm. However, the supply voltages of some applications cannot be reduced at the same rate as that of shrinking technologies.
RECENT TRENDS IN DEVELOPMENT OF HIGH VOLTAGE CIRCUIT BREAKERS WITH SF6 ALTERNATIVE GASES
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Abstract. The available knowledge of state-of-the-art of SF6 alternative gases in switching applications was collected and evaluated in an initiative of the Current Zero Club [1] together with CIGRE. The present contribution summarizes the main results of this activity and will CSE PROJECTS