scholarly journals Reliability analysis of the power supply system of closed-circuit television system used at a highway toll collection point

2017 ◽  
Vol 41 (1) ◽  
pp. 39-58 ◽  
Author(s):  
Adam Rosiński
Keyword(s):  
Reliability Analysis ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Closed Circuit ◽  
Television System ◽  
Closed Circuit Television ◽  
Toll Collection ◽  
Supply Systems ◽  
Collection Point

Abstract The article presents issues concerning the power supply systems of closed-circuit television systems used at a highway toll collection point. The general diagram of the power supply system was presented, and then the reliability analysis was conducted. This enabled to develop a relationships graph, on the basis of which the Chapman–Kolmogorov system of equations describing it was created. On this basis, it was possible to set the relationships allowing to calculate the probability values of the system’s staying (in symbolic terms) in the following functional states: of full ability SPZ, of non-full ability SZB1 and SZB2, and of unfitness SB.

scholarly journals Measurement of currents and voltages non-sinusoidal parameters in power supply systems with rectifier load

2018 ◽  
Vol 245 ◽  
pp. 06007 ◽  
Author(s):  
Valery Vanin ◽  
Alexandr Bulychov ◽  
Maxim Popov ◽  
Olga Vasilyeva ◽  
Maria Shakhova
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Negative Impact ◽  
Supply System ◽  
Municipal Services ◽  
Quality Indices ◽  
Electric Drives ◽  
Traction Substation ◽  
Railway Traction ◽  
Supply Systems

The use of frequency-controlled electric drives in industry and municipal services is accompanied by the problem of their negative impact on the distribution network. As examples, the results of measurements of power quality indices in the power supply system of an oil producing enterprise and on the supply input of a railway traction substation are given. It is shown that the voltage subgroup total harmonic distortions (THDS) can exceed their rated permitted values in 100% of the measurement time.

Math model of a power beam feeding a spacecraft under conditions of intermittent power supply

2020 ◽  
pp. 56-65
Author(s):  
Aleksey M. BEZNYAKOV ◽  
Aleksey V. NEMIROV ◽  
Gennadiy B. STEGANOV
Keyword(s):  
Power Consumption ◽  
Power Supply ◽  
Power Plants ◽  
Power Supply System ◽  
Supply System ◽  
Solar Array ◽  
Math Model ◽  
Operational Conditions ◽  
Supply Systems

The paper discusses transmission, reception, conversion and consumption of energy of laser and microwave radiation from Earth or space power plants. It proposes a classification of advanced systems for remote supply of power to spacecraft (SC). It addresses practicability of using remote power supply to SC under various operational conditions. The paper formulates the problem of evaluating the capability of the existing SC power supply systems to receive and convert emissions from additional sources. An analysis of criteria for the quality of pulsed or rapidly varying flow of energy into a SC power supply system. It reviews the structures of typical channels of power consumption in a SC power supply system. An equivalent circuit replacing receivers of pulsed or rapidly changing radiation is described. A math model is proposed for a power consumption channel operating under conditions of intermittent power supply to photovoltaic converters. Math modeling results are presented and analyzed. Key words: space power plant, solar array, onboard power supply system, power consumption channel, voltage converters.

Reliability Analysis for Power Supply System in a Typical Reprocessing Facility Based on GO Methodology

2013 ◽  
Author(s):  
Renze Wang ◽  
Zongyang Feng ◽  
Pengbo Li
Keyword(s):  
Reliability Analysis ◽  
Power Supply ◽  
System Reliability ◽  
Power Supply System ◽  
Fault Tree ◽  
Supply System ◽  
Spent Fuel ◽  
System Reliability Analysis ◽  
Go Methodology ◽  
Operation Stability

Since the nuclear energy industry in China has developed rapidly, the demand for spent fuel reprocessing is becoming more and more distinct. In a reprocessing facility, power supply system (PSS) is important for operation-stability and safety-guarantee of the whole facility. Therefore, the reliability of the PSS deserves in-depth investigation and analysis. Fault tree (FT) methodology is the most accustomed methodology for system-reliability analysis and it has been standardized and applied widely. GO methodology is another effective methodology for system-reliability analysis but it has not been applied widely. In this work, GO methodology was applied to analyze the reliability of the PSS in a typical reprocessing facility. First, for modeling expediently, based on the fact that tie breakers are set in the system, tie breaker operator was defined by myself. Then, GO methodology modeling and quantitative analysis were performed, minimal cut sets (MCSs) and average unavailability of the system were obtained. Finally, parallel analysis between GO methodology and fault tree methodology was also performed. The results from the two methodologies are completely coincident. The results of this work show the following two points: 1. Setup of tie breakers in the PSS of the reprocessing facility is rational and necessary; 2. For reliability analysis of the PSS of the reprocessing facility, parallel with fault tree methodology, GO methodology has two distinct advantages: Its modeling is much easier and its chart is much more succinct.

Analysis of Possibilities of Using Membrane Electrolyser in a Closed-Circuit Power Supply System

2013 ◽  
Vol 210 ◽  
pp. 9-13
Author(s):  
Grzegorz Grzeczka
Keyword(s):  
Energy Source ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Comprehensive Assessment ◽  
Closed Circuit ◽  
Safe Operation ◽  
Advantages And Disadvantages ◽  
The Future ◽  
Circuit Power

The issue of using hydrogen as an energy source of the future raises greater and greater interest and lively discussions. Frequently, leaving aside complexity of the problem, these discussions focus exclusively on fragmentary analyses. This presentation is a description of practical and comprehensive assessment of an actual efficiency of a system using hydrogen for supplying energy in mobile arrangements of a power in the region of a dozen watts. In our discussion, emphasis was placed on the analysis of advantages and disadvantages taking into consideration all these aspects that are necessary for the correct and safe operation of the system.

Rationalisation of the Operation Process of Power Supply Systems of Highway Telematics

2016 ◽  
Vol 817 ◽  
pp. 253-260
Author(s):  
Adam Rosiński
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
The State ◽  
System Of Equations ◽  
Operation Process ◽  
Supply Systems

The paper presents the issues related to the operation of the operation process of the power supply system of highway telematics. A relationships graph was presented in the considered system, and the Kolmogorov-Chapman system of equations was derived to describe it. Drawing on those equations, relationships for calculating probability of the power supply system staying in state of complete usability SPZ, state of the impendency over safety SZB as well as the state of unreliability of safety SB were derived. Next, this enabled rationalisation of the operation process of the analysed systems.

scholarly journals Modeling of reliability of power supply systems with autonomous energy source

2019 ◽  
Vol 139 ◽  
pp. 01036
Author(s):  
M.S. Ershov ◽  
R.B. Jalilov ◽  
S.P. Shayimova ◽  
A.I. Choriyev ◽  
M.R. Charieva
Keyword(s):  
Energy Source ◽  
Comparative Analysis ◽  
Power Supply ◽  
Power Supply System ◽  
Random Processes ◽  
Supply System ◽  
Software Implementation ◽  
Energy Sources ◽  
Markov Random ◽  
Supply Systems

The methodology for calculating the reliability of power supply systems with autonomous and mixed energy sources has been considered. Autonomous sources are widely used in industrial power supply systems as primary, backup or emergency sources. The functioning and interchangeability of these systems has features that affect the reliability of power supply. The proposed methodology is based on the method of semi-Markov random processes and can be used for comparative analysis of the reliability of options for power supply systems. The methodology has been brought to software implementation and is accompanied by an example of calculating the reliability of the power supply system for stationary marine oil production platforms.

scholarly journals New AC & DC hybrid power supply system and its reliability analysis in data centre

2019 ◽  
Vol 2019 (16) ◽  
pp. 2800-2803
Author(s):  
Jianzong He ◽  
Xiang Xiao ◽  
Rongfu Zhong ◽  
Weixiong Huang ◽  
Donghui Li ◽  
...  
Keyword(s):  
Reliability Analysis ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Hybrid Power ◽  
Data Centre

scholarly journals A Dispatching Optimization Model for Park Power Supply Systems Considering Power-to-Gas and Peak Regulation Compensation

Processes ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 813 ◽  
Author(s):  
Yunfu Qin ◽  
Hongyu Lin ◽  
Zhongfu Tan ◽  
Qingyou Yan ◽  
Li Li ◽  
...  
Keyword(s):  
Power Supply ◽  
Optimization Model ◽  
Power Supply System ◽  
Clean Energy ◽  
Supply System ◽  
Compensation Mechanism ◽  
Net Profit ◽  
The Stability ◽  
Power To Gas ◽  
Supply Systems

To ensure the stability of park power supply systems and to promote the consumption of wind/photovoltaic generation, this paper proposes a dispatching optimization model for the park power supply system with power-to-gas (P2G) and peak regulation via gas-fired generators. Firstly, the structure of a park power system with P2G was built. Secondly, a dispatching optimization model for the park power supply system was constructed with a peak regulation compensation mechanism. Finally, the effectiveness of the model was verified by a case study. The case results show that with the integration of P2G and the marketized peak regulation compensation mechanism, preferential power energy storage followed by gas storage had the best effect on the park power supply system, which minimized the clean energy curtailment to 11.18% and the total cost by approximately $120.190 and maximized the net profit by approximately $152.005.

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