• No results found

dc power transmission

Composite Ac–Dc Power Transmission Lines

Composite Ac–Dc Power Transmission Lines

... ac-dc transmission it is feasible to load these tie lines close to thermal limits specified in the data ...superimposed dc current with ac current. The added dc power flow is flawless ...

7

Power Tapping Of Upgrade Transmission Line by Using Composite Ac-Dc Power Transmission Lines

Power Tapping Of Upgrade Transmission Line by Using Composite Ac-Dc Power Transmission Lines

... ac-dc power transmission enables the long EHV ac lines to be loaded close ...of dc current superimposed on usual ac ...substantial power upgrading of an existing EHV ac lines by ...

6

Power Upgrading of Transmission Line by Using Simultaneous AC-DC Transmission

Power Upgrading of Transmission Line by Using Simultaneous AC-DC Transmission

... ac–dc power transmission line to get the advantages of parallel ac–dc transmission to improve stability and power ...and dc power ...

6

COMPARATIVE STUDY OF DC-DC CONVERTERS FOR RECTIFIER POWER FACTOR CONTROL

COMPARATIVE STUDY OF DC-DC CONVERTERS FOR RECTIFIER POWER FACTOR CONTROL

... e Power factor is defined as the cosine of the angle between voltage and current in an AC ...Electrical Power = Voltage across the element * current through the element = V * ...apparent power, ...

7

Design and Analysis of Digital PWM Controller for DC DC Power Converter

Design and Analysis of Digital PWM Controller for DC DC Power Converter

... The block diagram of a digital current mode control of dc- dc converter is shown in Fig .2.In this paper digital controller samples the sensed current only once in the every switching period[9]. Therefore ...

6

Design and Implementation of the Bridgeless AC-DC Adapter for DC Power Applications

Design and Implementation of the Bridgeless AC-DC Adapter for DC Power Applications

... paper, power factor correction (PFC) is one of the most active process in most of the ac-dc converters, generally semi bridgeless rectifier followed by a boost converter has been the most commonly used PFC ...

8

Full-Bridge Power DC-DC transformation by MOSFET Switching Techniques

Full-Bridge Power DC-DC transformation by MOSFET Switching Techniques

... extend power conversion capability and supply increased characteristics, current-fed was also used in resonant ,two- inductors boost ,and three-phase converters ...two-way dcdc convertor topology ...

11

Analysis and Design of Solar Power Fed DC-DC SEPIC Converter

Analysis and Design of Solar Power Fed DC-DC SEPIC Converter

... IC was designed based on the observation of P-V characteristic curve.IC tries to improve the tracking time and to produce more energy on a vast irradiation changes environment.The MPP can be calaculated by using the ...

8

Core Size Optimisation of Variable Power Inductor in DC-DC Converter

Core Size Optimisation of Variable Power Inductor in DC-DC Converter

... electric power. The aforesaid increased power demand of advanced vehicles justifies the vital role of power electronics in development of such vehicular ...of power electronic based system ...

8

THE DESIGN OF POWER DC BUS SYSTEM TO INCREASE THE SOLAR EFFICIENCY BY USING DC-DC CONVERTER

THE DESIGN OF POWER DC BUS SYSTEM TO INCREASE THE SOLAR EFFICIENCY BY USING DC-DC CONVERTER

... another. DC to DC converters are important in portable electronic devices such as cellular phones, laptops computers, which are the supplied with power from batteries ...stored power is ...

9

Theory of Pulsed Power Transmission in Mechanical Engineering The Law of Impulsive Power Transmission

Theory of Pulsed Power Transmission in Mechanical Engineering The Law of Impulsive Power Transmission

... the power is transmitted from input shaft to the output shaft through friction tooth(s) fixed on the circumference, only when the friction tooth(s) and the wheel mounted on input shaft comes in contact with each ...

6

Power Factor Correction Using New Dc-Dc Converter Fed Dc Motor Drive

Power Factor Correction Using New Dc-Dc Converter Fed Dc Motor Drive

... the power factor of the system thus disturbing the performance of the ...the power factor of the system. This has lead to designing of Power Factor Correction ...active power factor circuit ...

8

The effect of DC current on power transformers

The effect of DC current on power transformers

... the DC bias created by AC and DC drives will entail recording a minimum and maximum value for DC injection across each unit’s three line side ...a DC current clamp utilising hall-effect ...and ...

149

Design a simple DC power supply

Design a simple DC power supply

... Electrical power is the rate of movement of electrons that create ...electrical power to perform certain ...electrical power comes at a ...cost. Power supplies are the devices that can ...

7

Uniform Power Transmission Gears

Uniform Power Transmission Gears

... Using the data presented in Section 2, a gear cutter was produced and some gear pairs were shaped afterwards with a Maag shaping machine. A gear pair produced in this way is presented in Fig. 17. These gears were ...

12

DC Voltage Control and Power-Sharing of Multi-Terminal DC Grids Based on Optimal DC Power Flow and Flexible Voltage Droop Strategy

DC Voltage Control and Power-Sharing of Multi-Terminal DC Grids Based on Optimal DC Power Flow and Flexible Voltage Droop Strategy

... for DC voltage control and power-sharing of Multi-Terminal DC (MTDC) grids based on an Optimal Power Flow (OPF) procedure and the voltage-droop ...of DC voltages and active powers of ...

8

Catastrophe of Power Transmission System

Catastrophe of Power Transmission System

... the Transmission Reli- ability Program of the Department of Energy ...the power system reli- ability listed previously, there is the detrimental role played by the protection systems during large distur- ...

8

Novel & Optimization Technique for Wireless Power Transmission using multi Stage Voltage Doublers RF-DC Energy Harvesting

Novel & Optimization Technique for Wireless Power Transmission using multi Stage Voltage Doublers RF-DC Energy Harvesting

... The authors in [10] developed an optimization of the voltage doublers stages in an energy conversion module for Radio Frequency (RF) energy harvesting system at 950 MHz band is presented. Two 10 stage voltage multipliers ...

6

The Wireless Transmission of Electrical Power

The Wireless Transmission of Electrical Power

... Wireless power transmission (WPT) is the efficient transmission of electric power from one point to another through vacuum or an atmosphere without the use of wire or any other ...The ...

5

DC power distribution for server farms

DC power distribution for server farms

... a DC distribution architecture in one form or another and have reported their fi ndings in the ...in power consumption of nearly 20% due to the change to DC distribution ...transmitting power ...

14

Show all 10000 documents...

Related subjects