Gigawatt peak power generation in a relativistic klystron amplifier driven by 1 kW seed-power

2013 ◽  
Vol 20 (11) ◽  
pp. 113102 ◽  
Author(s):  
Y. Wu ◽  
H. Q. Xie ◽  
Z. H. Li ◽  
Y. J. Zhang ◽  
Q. S. Ma
Keyword(s):  
Power Generation ◽  
Peak Power ◽  
Relativistic Klystron

Maximum peak power generation from Q-switched lasers

1999 ◽  
Vol 31 (3) ◽  
pp. 247-250 ◽  
Author(s):  
Ping Li ◽  
Qingpu Wang ◽  
Da Gao
Keyword(s):  
Power Generation ◽  
Peak Power ◽  
Maximum Peak

The Advantages of Combining Hydraulic and Thermal Energy in Power Plants

1992 ◽  
Vol 114 (1) ◽  
pp. 91-94 ◽  
Author(s):  
A. Bosio
Keyword(s):  
Power Generation ◽  
Gas Turbine ◽  
Thermal Energy ◽  
Peak Power ◽  
Power Plants ◽  
Hydraulic Turbine ◽  
Energy Demands ◽  
Combined Use

Power generation, especially that of electricity, must simultaneously meet the requirements of being able to satisfy peak demands and being easily modulable, even over short periods. The combined use of hydraulic and thermal energy can contribute to satisfy energy demands by increasing the amount of peak power generated, while modulating power to fit users’ needs. The hydraulic-gas plant described in this paper features a hydraulic turbine positioned directly on the compressor shaft, with the compressor mechanically connected to the gas turbine.

MPPT Techniques - A Review

2014 ◽  
Vol 1055 ◽  
pp. 182-187 ◽  
Author(s):  
Sarat Kumar Sahoo ◽  
Mayur Bansal
Keyword(s):  
Power Generation ◽  
Peak Power ◽  
Power Transmission ◽  
Electrical Power ◽  
Solar Array ◽  
Operating Voltage ◽  
Solar Power Generation ◽  
Solar Arrays ◽  
Power Point ◽  
Transmission And Distribution

The use of solar energy is increased now due to its renewable and pollution-free characteristics. The grid connected dc-ac inverters are largely needed for solar power generation which can be used for power transmission and distribution. The electrical power supplied by the solar arrays depends on temperature, isolation and array voltage. It is therefore necessary to adopt MPPT in order to bring the solar array operating voltage near the peak power point. It will help in drawing maximum possible power from the array. This paper presents various techniques used for achieving this target and compares them with each other to know the benefits and drawbacks with each method.Keywords: MPP, P&O, IC, PV, TF.

scholarly journals All-in-One High-Power-Density Vibrational Energy Harvester with Impact-Induced Frequency Broadening Mechanisms

Micromachines ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1083
Author(s):  
Yongqi Cao ◽  
Weihe Shen ◽  
Fangzhi Li ◽  
Huan Qi ◽  
Jiaxiang Wang ◽  
...  
Keyword(s):  
Power Generation ◽  
Cantilever Beam ◽  
External Load ◽  
Peak Power ◽  
Vibrational Energy ◽  
Nonlinear Frequency ◽  
Electromagnetic Power ◽  
Response Bandwidth ◽  
And Performance ◽  
High Output Voltage

This paper proposes an electrostatic-piezoelectric-electromagnetic hybrid vibrational power generator with different frequency broadening schemes. Both the nonlinear frequency broadening mechanisms and the synergized effect of the electrostatic-piezoelectric-electromagnetic hybrid structures are investigated. The structure and performance of the composite generator are optimized to improve the response bandwidth and performance. We propose that the electrostatic power generation module and the electromagnetic power generation module be introduced into the cantilever beam to make the multifunctional cantilever beam, realizing small integrated output loss, high output voltage, and high current characteristics. When the external load of the electrostatic power generation module is 10 kΩ, its peak power can reach 3.6 mW; when the external load of the piezoelectric power generation module is 2 kΩ, its peak power is 2.2 mW; and when the external load of the electromagnetic power generation module is 170 Ω, its peak power is 0.735 mW. This means that under the same space utilization, the performance is improved by 90%. Moreover, an energy management circuit (ECM) at the rear end of the device is added, through the energy conditioning circuit, the device can directly export a 3.3 V DC voltage to supply power to most of the sensing equipment. In this paper, the hybrid generator’s structure and performance are optimized, and the response bandwidth and performance are improved. In general, the primary advantages of the device in this paper are its larger bandwidth and enhanced performance.

scholarly journals Optimal Share of Natural Gas in the Electric Power Generation of South Korea: A Note

2019 ◽  
Vol 11 (13) ◽  
pp. 3705 ◽  
Author(s):  
Gyeong-Sam Kim ◽  
Hyo-Jin Kim ◽  
Seung-Hoon Yoo
Keyword(s):  
Power Generation ◽  
Natural Gas ◽  
South Korea ◽  
Electric Power ◽  
Production Function ◽  
Peak Power ◽  
Annual Data ◽  
Electric Power Generation ◽  
National Output

Natural gas (NG) not only emits fewer greenhouse gases and air pollutants than coal but also plays the role of a peak power source that can respond immediately to the variability of increasing renewables. Although the share of NG generation worldwide is increasing, it is difficult for South Korea to increase its NG generation significantly in terms of fuel supply security, since it depends on imports for all of the NG used for power generation. Therefore, the optimal share of NG generation in electric power generation is a serious concern. This note attempts to estimate the optimal share by modelling the plausible relationship between NG generation and national output in the Cobb–Douglas production function setting and then deriving the output-maximizing share of NG generation. The production function is statistically significantly estimated using annual data from 1990 to 2016, allowing for the first-order serial correlation. The optimal share is computed to be 20.3%. Therefore, it is recommended that South Korea increases the share of NG generation slightly and makes efforts to secure a stable NG supply, given that, according to the national plan, the share will be 18.8% in 2030.

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