scholarly journals IMPROVEMENT OF SURVIVABILITY OF A POWER PLANT’S DIRECT CURRENT AUXILIARY POWER SYSTEM UNDER ELECTROMAGNETIC PULSE (HEMP)

2019 ◽  
Vol 2 (1) ◽  
pp. 1-8
Author(s):  
Vladimir Gurevich
Keyword(s):  
Power Systems ◽  
Power System ◽  
High Altitude ◽  
Direct Current ◽  
Electromagnetic Pulse ◽  
Electronic Equipment ◽  
Auxiliary Power ◽  
National Infrastructure

High Altitude Electromagnetic Pulse (HEMP) is a challenging agent aimed to destroy the most critical types of electronic equipment in the most important components of national infrastructure. The article addresses the issue of improvement of a power plant’s direct current auxiliary power systems (DCAPS) survivability under HEMP impact, and suggests certain simple measures and affordable technical means that ensure significant improvement of DCAPS’s resistance to HEMP.

scholarly journals Study of auxiliary power system for electroplaters on the thermal engine basis

2019 ◽  
Vol 124 ◽  
pp. 01004
Author(s):  
R. V. Vyatkin ◽  
A. N. Tikhomirov ◽  
D. A. Kolesnichenko
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electric Vehicle ◽  
Power Source ◽  
Design Work ◽  
Auxiliary Power ◽  
Low Charge ◽  
Design And Testing

The article describes the design and testing of an auxiliary power system for a light commercial electric vehicle. In paper described research about load modes of auxiliary power system for maintaining performance of electric vehicle under low-charge conditions. The article describes the design work and the installation of the necessary components for the research. The authors describe the experiment of charging the traction battery from an auxiliary power source. The results of the study are presented, including an assessment of the effectiveness of using auxiliary power systems.

DC-link project applied to Variable Speed Drives in Subsea Power Systems

2020 ◽  
Author(s):  
Daniel Krejci ◽  
João Adolpho V. da Costa ◽  
Diego De S. de Oliveira ◽  
Gustavo Cezimbra B. Leal ◽  
Emanuel L. van Emmerik ◽  
...  
Keyword(s):  
Power Systems ◽  
Power System ◽  
Direct Current ◽  
Entire System ◽  
Variable Speed ◽  
Variable Speed Drives ◽  
Electromagnetic Transient ◽  
Project Method ◽  
Power Electronics Converters ◽  
And Inversion

This paper presents a project method of the direct current link in order to decouple the rectification and inversion stages present in power electronics converters in a subsea power system, showing the calculation memories of the capacitors to be used in Variable Speed Drives that drive subsea loads. In order to observe the influence of harmonics on the subsea power system and on the voltage of the direct current link, the entire system was modeled with the PSCAD/EMTDC electromagnetic transient software.

Markov Jump Linear System Analysis of a Microgrid Operating in Islanded and Grid Tied Modes

2020 ◽  
Author(s):  
Gilles Mpembele ◽  
Jonathan Kimball
Keyword(s):  
Monte Carlo ◽  
Power Systems ◽  
Power System ◽  
System Analysis ◽  
Differential Algebraic Equations ◽  
Algebraic Equations ◽  
Markov Jump ◽  
Numerical Application ◽  
Conditional Moments ◽  
Markov Jump Linear Systems

<div>The analysis of power system dynamics is usually conducted using traditional models based on the standard nonlinear differential algebraic equations (DAEs). In general, solutions to these equations can be obtained using numerical methods such as the Monte Carlo simulations. The use of methods based on the Stochastic Hybrid System (SHS) framework for power systems subject to stochastic behavior is relatively new. These methods have been successfully applied to power systems subjected to</div><div>stochastic inputs. This study discusses a class of SHSs referred to as Markov Jump Linear Systems (MJLSs), in which the entire dynamic system is jumping between distinct operating points, with different local small-signal dynamics. The numerical application is based on the analysis of the IEEE 37-bus power system switching between grid-tied and standalone operating modes. The Ordinary Differential Equations (ODEs) representing the evolution of the conditional moments are derived and a matrix representation of the system is developed. Results are compared to the averaged Monte Carlo simulation. The MJLS approach was found to have a key advantage of being far less computational expensive.</div>

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