Efficiency Improvement for Diode-Clamped Linear Amplifier using Unequally Divided Voltage Power Supply

2021 ◽  
pp. 1-1
Author(s):  
Junnosuke Haruna ◽  
Yusuke Matano ◽  
Hirohito Funato
Keyword(s):  
Power Supply ◽  
Efficiency Improvement ◽  
Linear Amplifier

Eco-efficiency improvement of Western Australian remote area power supply

2019 ◽  
Vol 230 ◽  
pp. 820-834 ◽  
Author(s):  
Aldrick Arceo ◽  
Wahidul K. Biswas ◽  
Michele John
Keyword(s):  
Power Supply ◽  
Remote Area ◽  
Efficiency Improvement ◽  
Western Australian

A Method to Improve Switching Power Supply Efficiency at Light Load with DSP Control

2016 ◽  
Vol 698 ◽  
pp. 133-141
Author(s):  
Chuan Gao ◽  
Guang Lei Jin ◽  
Ri Chen Jiang ◽  
Mu Rong Li ◽  
Masashi Ochiai ◽  
...  
Keyword(s):  
Power Supply ◽  
Power Efficiency ◽  
Control Method ◽  
Efficiency Improvement ◽  
Switching Power Supply ◽  
Power Circuit ◽  
Switching Power ◽  
Light Load ◽  
Result Show ◽  
Dsp Control

This paper discusses a digital control method for efficiency improvement of switching power circuit at light load by using C2000 Series DSP (Texas Instruments Inc.). In this work, we alter the module in DSP to adjust the link voltage between a bridgeless PFC AC/DC converter and a phase shift full bridge DC/DC converter, as well as to control the PWM frequency of power circuit in order to improve the power efficiency in a suitable way. Our experiments result show that the efficiency of the power circuit at half or light load improves by adjusting the link voltage and/or PWM frequency

A Novel Emergency Power Supply Unit in MW Wind Turbine Electric Pitch System

2012 ◽  
Vol 608-609 ◽  
pp. 730-733
Author(s):  
Cheng Cheng Ye
Keyword(s):  
Control System ◽  
Control Strategy ◽  
Power Supply ◽  
Power Supply Unit ◽  
Efficiency Improvement ◽  
Pitch Control ◽  
Operating Modes ◽  
Emergency Power ◽  
Pitch System ◽  
Parallel Series

An Emergency power supply unit is of great importance to an electric pitch control system especially in MW turbines. Based on a basic parallel-series shift circuit, the paper proposes a novel topology of an emergency power supply unit consisting of ultracapacitors in electric pitch system. Capacitance configuration is obtained and the percentage of efficiency improvement using parallel-series circuit is calculated. Then a control strategy involving three operating modes is established and specific parameters are shown with a flow chart. Finally a simulation of an emergency power supply unit is established and the result confirms the theory.

scholarly journals Analysis of the Condition and Monitoring of Emergency Power Outages in 10 kV Overhead Lines of the Oryol Region

2020 ◽  
Vol 178 ◽  
pp. 01074
Author(s):  
Igor Nikolaevich Fomin ◽  
Alexander Vladimirovich Vinogradov ◽  
Roman Pavlovich Belikov ◽  
Tatyana Anatolyevna Kudinova ◽  
Marat Firdenatovich Nizamiev
Keyword(s):  
Power Supply ◽  
Power Line ◽  
Power Lines ◽  
Efficiency Improvement ◽  
Reliable Operation ◽  
Power Outages ◽  
Overhead Lines ◽  
Uninterrupted Power Supply ◽  
Emergency Power ◽  
Overhead Power Lines

Efficiency improvement of modern production is associated with uninterrupted power supply to consumers. Power supply reliability to consumers is ensured by reliable operation of power lines. The number of outages depends on their condition and operation quality. An increase in the number of outages affects the further degradation of power line state, significantly reducing the resource of lines and equipment; and it takes a lot of time to find faults and eliminate them. Monitoring of power outages in overhead power lines will reduce the time of emergency elimination.1

Growth Ceiling of Energy Efficiency and Countermeasure Archetype in Electric Power Supply and Demand System

2013 ◽  
Vol 291-294 ◽  
pp. 1297-1302 ◽  
Author(s):  
Qing You Yan ◽  
Xin Fa Tang ◽  
Juan Juan Cao ◽  
Chao Kong
Keyword(s):  
Energy Efficiency ◽  
Electric Power ◽  
Power Supply ◽  
Supply And Demand ◽  
Feedback Mechanism ◽  
Electric Power System ◽  
Demand System ◽  
Efficiency Improvement ◽  
Electric Power Supply ◽  
Energy Efficiency Improvement

Energy efficiency depends on the profit that the consumed energy contributes to human need system for the sustainable development. With the increasing importance of coordinate development of environment, economic and electric power system, it is more and more difficult to choose the right improvement path and mechanism of energy efficiency in electric-power supply and demand system. After analyzing the feedback mechanism of energy efficiency improvement of the electric power supply and demand system, energy efficiency improvement which caused the growth ceiling was found along with some inhibition factors in the process of energy efficiency improvement. In view of the energy efficiency improvement growth ceiling of the electric-power supply and demand system, the end treatment mechanism was introduced as a countermeasure which inputs environmental costs to the power supply chain. Furthermore, government guides and participates in energy efficiency investment, which was regarded as another countermeasure attached much importance. So the improvement of energy efficiency in supply and demand system of electric power can be maximized.

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