Sources of independent power supply for protection relay

2018 ◽  
Vol 1 (5) ◽  
pp. 25-28
Author(s):  
Alexandr NOVOZHILOV
Keyword(s):  
Power Supply ◽  
Protection Relay ◽  
Independent Power Supply

Risk allocation in independent power supply contracts

1992 ◽  
Vol 5 (2) ◽  
pp. 54-63 ◽  
Author(s):  
Mason Willrich ◽  
Walter L. Campbell
Keyword(s):  
Power Supply ◽  
Risk Allocation ◽  
Supply Contracts ◽  
Independent Power Supply

scholarly journals Numerical Analysis of Integral Characteristics for the Condenser Setups of Independent Power-Supply Sources with the Closed-Looped Thermodynamic Cycle

2015 ◽  
Vol 2015 ◽  
pp. 1-7
Author(s):  
Olga V. Vysokomornaya ◽  
Genii V. Kuznetsov ◽  
Pavel A. Strizhak
Keyword(s):  
Power Supply ◽  
Organic Rankine Cycle ◽  
Thermodynamic Cycle ◽  
Rankine Cycle ◽  
Utilization Efficiency ◽  
Organic Liquids ◽  
Independent Power Supply ◽  
Mass Transfer Processes ◽  
Integral Characteristics ◽  
The Mathematical Model

The mathematical model of heat and mass transfer processes with phase transition is developed. It allows analysis of integral characteristics for the condenser setup of independent power-supply plant with the organic Rankine cycle. Different kinds of organic liquids can be used as a coolant and working substance. The temperatures of the working liquid at the condenser outlet under different values of outside air temperature are determined. The comparative analysis of the utilization efficiency of different cooling systems and organic coolants is carried out.

scholarly journals Overpotential evaluation of PEMFC using semi-empirical equation and SEM

2018 ◽  
Vol 67 ◽  
pp. 01015 ◽  
Author(s):  
Yutaro Akimoto ◽  
Shin-nosuke Suzuki
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Fault Diagnosis ◽  
Wind Power ◽  
Power Supply ◽  
Empirical Equation ◽  
Independent Power Supply ◽  
Diagnosis Method ◽  
Degradation Diagnosis ◽  
Semi Empirical

Fuel cells are a clean and weather-independent power supply. Solar and wind power are widespread in islands that are difficult to supply power. If problems are solved in the future, fuel cells are also expected to become popular. The widespread commercialization of PEMFC stacks depends on their reliability and fault diagnosis. In this study, we developed a degradation diagnosis method for the purpose of improving reliability. The output reduction of the fuel cell is separated into reduction factors called overpotentials. And the factor of the decrease is specified. In this paper, we show the proposed method and the degradation factors, and the effectiveness of the method.

The Design of an Independent Power Supply Applied to the Isolated Island

2012 ◽  
Vol 614-615 ◽  
pp. 1759-1765
Author(s):  
Yi Cheng Chen ◽  
Zhi Xin Wang
Keyword(s):  
Environmental Factors ◽  
Power System ◽  
Power Supply ◽  
Power Sources ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Renewable Power ◽  
Independent Power Supply ◽  
Electricity Load ◽  
Power Wave

This article aims to make a design of the power supply for an isolated island that has difficulty in realizing the connection with the mainland power grid. An independent hybrid power system consisting of varieties of renewable power sources including solar power, wind power, wave energy and batteries are introduced. This system is dedicated to make the forecast of the electricity load of the island according to the environmental factors and the electricity demand of the island. Then it builds the basic framework and models of hybrid power system on the basis of the forecast and finds out the appropriate method to optimize the power supply.

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