108 resources related to Electric Generators
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Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies
The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted papers will be peer reviewed. Accepted high quality papers will be presented in oral and postersessions, will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE
All topics related to engineering and technology management, including applicable analytical methods and economical/social/human issues to be considered in making engineering decisions.
IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.
This conference provides an exchange of technical topics in the fields of Solid State Modulators and Switches, Breakdown and Insulation, Compact Pulsed Power Systems, High Voltage Design, High Power Microwaves, Biological Applications, Analytical Methods and Modeling, and Accelerators.
No periodicals are currently tagged "Electric Generators"
The Wind Power Story: A Century of Innovation that Reshaped the Global Energy Landscape, None
In the twenty‐first century, wind power is a big deal. It is such an important part of the global energy landscape today in the twenty‐first century that people almost take it for granted. James Blyth would be the first in a long list of distinguished wind power innovators that were a step ahead of their contemporaries. Around the same time ...
Proceedings of the American Institute of Electrical Engineers, 1908
The general function of a storage battery in connection with an alternating- current system is the same as in a direct-current system, namely, to relieve the power plant and in some cases the transmission lines of the fluctuations of load, permitting the generating machinery and conductors to be utilized to the greatest advantage and at maximum economy by subjecting them ...
2013 2nd International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST), 2013
In order to discuss the operational feasibility of the test, analyses and experiments on the pulse oscillating circuit are carried out in this paper. The studies indicate that, under the same voltage, as gap of controllable discharging is larger than that of natural discharging, the trigger can be used to control the working state of the sphere gap, in repeatedly ...
2015 IEEE Pulsed Power Conference (PPC), 2015
We are reporting on a comprehensive study on protective de-coupling networks for High Voltage (HV) pulsed power charging supplies. Typically HV power supplies charge large capacitor banks [1, page 3], [2, page 4], which are rapidly discharged into a pulsed power load. Even during a normal discharge, this can put severe stress on the power supply if it is not ...
2015 IEEE International Conference on Plasma Sciences (ICOPS), 2015
Summary form only given. Nanosecond pulsed generator can generate large-area homogeneous and low temperature plasmas at atmospheric pressure, which has attracted much attention1, 2. In this paper, a home made repetitive nanosecond-pulse generator, which is based on magnetic compression system, is used to produce diffuse discharges in a double-pins-to-plane gap. The output voltage has a rise time of ~70 ns ...
Validating Cyber-Physical Energy Systems, Part 2: IECON 2018
Validating Cyber-Physical Energy Systems, Part 1: IECON 2018
Validating Cyber-Physical Energy Systems, Part 3: IECON 2018
International Electric Vehicle Conference 2012
The R&D History of On-Line Electric Vehicles (OLEV)
Magneto-electric Approximate Computation for Bayesian Inference - IEEE Rebooting Computing 2017
Electric Ship Technologies Symposium (Member Access)
State-of-the-art Electrical Machines for Hybrid Electric Vehicles
A Decade of Electric/Hybrid Vehicles Design and Development at UTBM
Transportation Electrification: Zero Emission Electric Veichles
Generating Stochastic Bits Using Tunable Quantum Systems - Erik Blair at INC 2019
APEC 2015: KeyTalks - More Electric Aircraft Challenges
Fuel Cell Powertrain for Hybrid Electric Vehicles for Postal Delivery
Part 1: Transforming the Electric Utility Industry with a Smart Grid: IEEE TAB Speakers Bureau
IEEE Milestone S&C Electric company
26th Annual MTT-AP Symposium and Mini Show - Dr. Ajay Poddar
Defense Department's Crusher Field Demonstration
Owning a Tesla, Going Electric - IEEE Southern Minnesota presentation
Regenerative Energy Storage Systems for Hybrid Electric and Battery Electric Vehicles
In the twenty‐first century, wind power is a big deal. It is such an important part of the global energy landscape today in the twenty‐first century that people almost take it for granted. James Blyth would be the first in a long list of distinguished wind power innovators that were a step ahead of their contemporaries. Around the same time that Blyth, Mr. Charles F. Brush, and Poul la Cour were experimenting with wind power, electric power systems were beginning to take shape in the United States and Europe. No history of the electric power industry would be complete without mentioning George Westinghouse. Westinghouse was an inventor and engineer who gained his first patent at the age of nineteen. In the first decades of the twentieth century, wind power innovators would have to find ways to provide electricity to rural consumers that were out of reach of the electric transmission system.
The general function of a storage battery in connection with an alternating- current system is the same as in a direct-current system, namely, to relieve the power plant and in some cases the transmission lines of the fluctuations of load, permitting the generating machinery and conductors to be utilized to the greatest advantage and at maximum economy by subjecting them to a steady load equal to the average, instead of a load whose fluctuations in some instances, as in heavy interurban railway work and in many industrial plants, are exceedingly rapid and severe. In many cases where alternating currents are developed, the advantages of a regulating storage battery are even more pronounced than in direct-current service, for the following reasons: 1. Alternating-current generation is particularly applicable to long distance interurban railway work where steam railroad conditions prevail, involving heavy units operating at comparatively infrequent intervals, producing fluctuations of load abnormally high as compared with the average. These conditions are comparable, except on a largely magnified scale, with those obtaining on the four or five car electric roads so common in the early history of electric railways.
In order to discuss the operational feasibility of the test, analyses and experiments on the pulse oscillating circuit are carried out in this paper. The studies indicate that, under the same voltage, as gap of controllable discharging is larger than that of natural discharging, the trigger can be used to control the working state of the sphere gap, in repeatedly discharge condition and stable pulse oscillating voltage would be acquired. Research results show that the controllable spark-discharge technique is necessary and feasible to ensure the implementation of the turn-to-turn over-voltage test on dry-type air-core reactors.
We are reporting on a comprehensive study on protective de-coupling networks for High Voltage (HV) pulsed power charging supplies. Typically HV power supplies charge large capacitor banks [1, page 3], [2, page 4], which are rapidly discharged into a pulsed power load. Even during a normal discharge, this can put severe stress on the power supply if it is not properly decoupled from the load. A fault at the load capacitor such as a flashover resulting in a ringing discharge with voltage reversal would put even more stress on the power supply, since the load capacitor could discharge through the rectifier diodes in forward direction. In such a case the output rectifier of the power supply could be instantaneously destroyed. Protective networks between the power supply and the load can prevent such damage but may limit the efficiency as well as the available power output and rep-rate of the HV power supply. We are reporting on a number of protective networks including combinations of resistors, inductors, and diodes that can be placed between the output of the power supply and the load. We are also considering the effects of parasitics and the surge I2t action integral [3, Page 20] of the output rectifiers of the power supply to arrive at guidelines for optimal system protection.
Summary form only given. Nanosecond pulsed generator can generate large-area homogeneous and low temperature plasmas at atmospheric pressure, which has attracted much attention1, 2. In this paper, a home made repetitive nanosecond-pulse generator, which is based on magnetic compression system, is used to produce diffuse discharges in a double-pins-to-plane gap. The output voltage has a rise time of ~70 ns and a full width at half maximum of ~100 ns. The characteristics of diffuse discharge are investigated by measuring the voltage-current waveforms and taking the discharge images. The experimental results show that a proper distance between the double pins for a better performance of the diffuse discharge is 8 mm. The diffuse discharge will transit to corona or spark mode with increasing or decreasing the amplitude of applied voltage in atmospheric-pressure air. Furthermore, the conduction current, the instantaneous power and the energy per pulse are calculated. The corresponding results show that the conduction current behaves unipolar and current amplitude is larger than the displacement current. The instantaneous power could reach tens of kilowalts. In addition, the pulse energy per pulse ranges from 2.34 to 4.45mJ in the experiments.
Summary form only given. Low-pressure (p≈103-1Torr) capacitively coupled RF plasmas are mostly used in material processing . Different parametrical conditions in the plasma are preferred by different applications. High density plasmas in gamma mode are ideal for etching applications while stabile plasmas in gamma mode are more convenient for sputtering applications . Therefore, it is better to characterize the plasma before process to get more efficient results.This study reports mode transition points in low-pressure capacitively coupled pure nitrogen RF plasma driven at 13.56 MHz and 40.68 MHz. The plasma was ignited in a home-made (500 u 400 mm2) stainless steel cylindrical reactor. Distance between the identical (200 mm in diameter) electrodes was set to 40 mm [3, 4]. Moreover, L-type automatic matching network system was connected to the 40.68 MHz RF generator to get high accuracy while matching system of 13.56 MHz was perched in its generator. In addition, the pure (99.995 %) nitrogen was selected as an activation gas because there is not a strong work about mode characterization of nitrogen gas, although it has a remarkable impact in plasma processing applications. Mode transition analyses were done according to diagnostic results that were obtained by Impedans Langmuir single and double probe systems. Pressure and power dependence of electron conduction current density, electron density and electron energy (or temperature) were investigated to determine mode transition points. These investigations revealed that a smooth alpha to gamma transition was observed at 0.1 Torr pressure in 13.56 MHz nitrogen plasma at whereas a sharp one was seen at 0.3 Torr pressure in 40.68 MHz nitrogen plasma. Also, at these pressures, another transition point (from gamma to alpha) was noticed with 150 Watt critical RF power in both plasmas. In conclusion, heating mode transition pressure of the low frequency RF-CCP is lower than that of the high frequency RF-CCP. On the other hand, RF power shows the same effect in both RF plasmas.
Of all electro-dynamic machines, the direct-current machine probably is the best understood. It was the first machine to be commercially utilized and it is an interesting matter from an engineering standpoint to follow the evolution which this type of machine has passed through. The first great improvement to be incorporated in this type of machine was the application of commutating poles. As is the case in any radical development, engineering opinion was much divided as to the usefulness of such a construction. At first it was held that commutating poles were only useful where the service was severe, as, for example, in adjustable speed motors covering a large speed range. Today, however, it is well realized that commutating poles are advantageous in all kinds of direct-current machines, except in very small machines of fractional horse power output. It is well understood in the art that commutating poles alone do not offer a perfect solution of the direct- current problem, since there exists in such machines troublesome flux distortions. Many attempts have been made to overcome this by aid of distributed windings, and in this paper is described a form of such windings, which have given excellent results both from an operating and an economical standpoint. This distributed winding consists of two parts, one of which may be considered a counterpart of the armature, and is called a compensating winding. This winding opposes the armature reaction in every point around the circumference and effectively prevents any distortion of the flux. There is also a second winding for supplying the excitation and as is described in the paper, this winding is also distributed. By aid of such field windings, it is possible to meet very extreme conditions of service, for example, as is met with in high-voltage machines. In the machine that is described, the voltage between bars runs up to about 100 volts, or nearly four times the conventional value; nevertheless, the commutation is perfect. Machines rated 15 kw. have been built successfully up to 15,000 volts. One of the mechanical difficulties in building high-voltage, direct-current machines lies in the building of the commutator. A novel type of commutator is described in the paper. This commutator construction provides simple means for holding the segments together, and at the same time secures high insulation qualities.
Under normal circumstances an insulating media contains at least a few free electrons. If these electrons happen to be in an area of high voltage stress (or gradient) they can be accelerated to velocities which are sufficient to dislodge electrons from neutral molecules with which they collide. Positive ions and more free electrons are thereby produced and the latter are available to ionize still more neutral molecules. This chain reaction, or avalanche, gives rise to a large number of free electrons and ions existing in a turbulent condition called corona. An excellent tutorial paper on this subject was presented at the 1962 EI Conference(l). This and other papers(2,3) make clear that the effect of corona in shortening insulation life has been recognized for some time. However, the mechanism by which corona degradates insulation is not completely understood. It has been variously ascribed to ionic bombardment, electron bombardment, ozone attack, and localized heating(4).
The current monitoring objectives in the discharge circuit of the pulse- current generator for the pulse-discharge technologies were analyzed. The designed control and current protection system of the 4-channel pulse-current generator performs the real time reaction on the appearance of the idle discharges and the short-circuit mode, stores the numbers of the nominal and idle discharges, and, during the short-circuit mode, blocks and turns off the generator. The system simulation and testing of the experimental prototype were successfully performed.
Tri-generation (electricity, heating, cooling) describes all energy generation systems that utilise recoverable waste heat for space heating, cooling, and domestic hot water purposes. Tri-generation is broadly considered as an alternative for the world to meet and solve energy-related problems, such as increase in energy demands and costs, energy supply security, and reducing carbon dioxide emissions. Diverse research on how to implement and utilise tri-generation system efficiently and effectively is booming at present. However, it is rarely reported in terms of the important relationship between efficiency improvement of tri-generation system and the reasonable utilisation of electrical energy in it. This paper discussed the reasons why the hybrid energy storage (HES) should be integrated into tri-generation system to promote its performance. And then an initial investigation of HES was carried out where, novel electrical storage components were employed to facilitate energy storage system which is regarded as a crucial part of tri-generation system. Furthermore, the performance of electrical energy storage and power supply subsystem was tested both in initial experimentation and simulation. The fact verified that innovative HES can promote the dynamics and improve the efficiency of tri-generation.
No standards are currently tagged "Electric Generators"