• No results found

Switching frequency for different voltages for various

Abstract: GaN power switching devices are promising candidates for high switching frequency and high

Abstract: GaN power switching devices are promising candidates for high switching frequency and high

... high switching frequency converters due to their lower ...ZVRT switching converters, the low switching losses can be achieved while not significantly increasing their conduction ...soft ...

10

Inverter Efficiency Simulation and Measurement for Various Modern Switching Devices

Inverter Efficiency Simulation and Measurement for Various Modern Switching Devices

... a switching frequency of ...the switching frequency since all hardware was designed to specifically run at ...lower switching losses. At 20kHz, however, the switching losses were ...

296

47261948 Simulation Analysis of Lighting Switching Impulse Voltages

47261948 Simulation Analysis of Lighting Switching Impulse Voltages

... the various international standards recommend that equipment designed for voltages above 300kV be tested for switching ...of switching overvoltages occurring in the system may vary widely, ...

13

Effect of Very Fast Transient over voltages at high frequency in a Gas Insulated Substation during switching operations

Effect of Very Fast Transient over voltages at high frequency in a Gas Insulated Substation during switching operations

... he increase in demand for electricity and growing energy density in metropolitan cities have made it necessary to extend the existing high voltage networks right up to the consumers . Stepping down the voltage from ...

14

SUITABILITY OF DIFFERENT TEST VOLTAGES FOR ON-SITE TESTING OF XLPE CABLE SYSTEMS

SUITABILITY OF DIFFERENT TEST VOLTAGES FOR ON-SITE TESTING OF XLPE CABLE SYSTEMS

... power frequency (2) Due to the low frequency the capacitive field control is not longer dominant reduced field strength in the faults  higher voltage necessary in comparison with AC of power ...

34

Electronic Design of Compact Power Supply Unit for Various Voltages in Ultrasound Transient Elastography

Electronic Design of Compact Power Supply Unit for Various Voltages in Ultrasound Transient Elastography

... output voltages for gate and drain drives of the MOSFET’s, supply impulse nature of load when all the Pulsers are switched ON simultaneously and offer efficiency of the order of more than ...the switching ...

5

Plasma Diagnostics of Low Pressure Helium Glow Discharges at Different Working Voltages

Plasma Diagnostics of Low Pressure Helium Glow Discharges at Different Working Voltages

... Fig.2: A schematic diagram of home-made plasma system (a) and discharge electrodes (b) Fig 3: Langmuir probe assembly (a) and its circuit (b) in planer glow discharge experiments Experimental Results Paschen curve for ...

7

Low frequency magnetic emissions and resulting induced voltages in a pacemaker by iPod portable music players

Low frequency magnetic emissions and resulting induced voltages in a pacemaker by iPod portable music players

... actual voltages that were induced (by the iPods) in a real pacemaker with leads (from approximately 0 to several ...saline. Voltages between the tip and case ("can") and between the lead electrode ...

5

Minimization of Resonant Frequency Oscillations in Terminal Voltages of AC Motors Using Active Damping Technique

Minimization of Resonant Frequency Oscillations in Terminal Voltages of AC Motors Using Active Damping Technique

... 𝐿 𝑒𝑞 𝐶 𝑓 ...... (3) Resonance is a particular type of phenomenon inherently found in every kind of systems like Electrical, Mechanical, Optical, Acoustical and even automatic. Resonance is occurrence when the circuit ...

12

Frequency Switching of PIFA Using Split Ring Resonator

Frequency Switching of PIFA Using Split Ring Resonator

... Keywords:- Multiband, metamaterial, Nicolson-Ross-Weir (NRW), PIFA, return loss. I. INTRODUCTION In recent years, there is a growing demand for compact, efficient and high gain multiband antennas in wireless and mobile ...

9

SIMULATION OF IMPULSE VOLTAGE GENERATOR IN DIFFERENT IMPULSE VOLTAGES FOR TESTING OF UNDERGROUND POWER CABLES IN

SIMULATION OF IMPULSE VOLTAGE GENERATOR IN DIFFERENT IMPULSE VOLTAGES FOR TESTING OF UNDERGROUND POWER CABLES IN

... Keywords: Equivalent circuit model of impulse voltage generator, Marx circuit model, capacitive load, underground power cables, Matlab/ Simulink. I. INTRODUCTION Underground power Cables are very important electrical ...

5

Compression of Multilevel Inverter Based Different Higher Output Voltages Levels with Minimum Number of Switches

Compression of Multilevel Inverter Based Different Higher Output Voltages Levels with Minimum Number of Switches

... presents different types of multilevel inverters, known as symmetrical and asymmetrical multilevel ...then switching strategy and operational principles of the proposed inverter are explained and ...

10

Measurement of very Fast Transient over Voltages by using MATLAB   in a 2 phase various Gas Insulated Substations

Measurement of very Fast Transient over Voltages by using MATLAB in a 2 phase various Gas Insulated Substations

... high frequency nature, the VFTO imposed on the transformers connected directly to the GIS would not be distributed evenly on all transformer ...the various operating DS installation positions in ...

6

Reduced Switching-Frequency Active Harmonic Elimination for Multilevel Converters

Reduced Switching-Frequency Active Harmonic Elimination for Multilevel Converters

... M ULTILEVEL converters have received more and more attention because of their capability of high-voltage operation, high efficiency, and low electromagnetic interference [1]–[3]. The desired output of a cascaded ...

11

Direct Torque Control of BLDC Motor with Constant Switching Frequency

Direct Torque Control of BLDC Motor with Constant Switching Frequency

... The different of DTC with FOC are less machines parameter dependence, simpler implementation and quicker dynamic torque response ...variable switching frequency, high torque and flux ripples, varying ...

5

Setting frequency relays and voltage relays to protect synchronous distributed generators against islanding and abnormal frequencies and voltages

Setting frequency relays and voltage relays to protect synchronous distributed generators against islanding and abnormal frequencies and voltages

... 47 3. System modelling and simulation planning 3.1 Introduction Nowadays there are numerous softwares for simulating power systems. A number of factors influence the choice of a software, including financial ...

81

Multilinguals' perceptions of feeling different when switching languages

Multilinguals' perceptions of feeling different when switching languages

... feeling different in their different languages (Oz˙an´ska-Ponikwia 2011; Pavlenko 2006; Wilson 2008), even though some partici- pants deviated from this ...the various scales becomes more restricted ...

16

Impact of Variable Switching Frequency over Power Loss on Converter Topologies

Impact of Variable Switching Frequency over Power Loss on Converter Topologies

... compares different topologies of DC-DC converters for levels of mitigation of EMI using a RCD snubber for ...for different switching ...for different switching frequencies keeping duty ...

6

Model Predictive Control for shunt active filters with fixed switching frequency

Model Predictive Control for shunt active filters with fixed switching frequency

... Abstract- This paper presents a modification to the classical Model Predictive Control algorithm, named Modulated Model Predictive Control, and its application to active power filters. The proposed control is able to ...

9

Soft-Switching High-Frequency Link Converters with Reduced Voltage Stress

Soft-Switching High-Frequency Link Converters with Reduced Voltage Stress

... ii ABSTRACT Power converters with stacked cells or stacked semiconductor switches have the widely- known advantage of achieving higher voltage or current levels by using standard low- voltage or low-current switches. ...

171

Show all 10000 documents...

Related subjects