scholarly journals Realization of the power-system protection functions for digital power stations and using of Elbrus computers

2019 ◽  
Vol 29 (1) ◽  
pp. 23-28 ◽  
Author(s):  
S. A. Khimich ◽  
Yu. S. Kolesov ◽  
A. V. Gluhov ◽  
T. R. Sharafeev
Keyword(s):  
Embedded Systems ◽  
Relay Protection ◽  
Target System ◽  
Computing Systems ◽  
Basic Principles ◽  
Industrial Facilities ◽  
System Protection ◽  
Power Stations ◽  
User Tasks ◽  
Protected Mode

The relevance of this study is justified by the introduction of digital transformers to modern electrical substations and the need to create relevant digital systems for the automatics relay protection. The article discusses the basic principles of automatics relay protection of the digital electrical substations. The authors examine the problems of its implementation with the use of embedded systems based on domestic computing systems of the Elbrus family with the support of a protected mode of program execution. They suggest an architecture of the user program for managing the automatics relay protection system at a digital substation. Based on the architecture of user tasks and the requirements of the industrial standard, the authors form the restrictions imposed on the software and hardware of the computing systems used in embedded systems in the industry. This paper presents some results of the protected mode in real problems of automatics relay protection at digital substations. The study demonstrates the advantage of using protected mode in creating programs that control industrial facilities. The authors consider the effect of protected mode on the performance and fault tolerance of the target system.

scholarly journals Microprocessors KOMDIV for High Performance Embedded Systems

2021 ◽  
Vol 7 (3) ◽  
Author(s):  
S.G. Bobkov
Keyword(s):  
Embedded Systems ◽  
Power Consumption ◽  
High Performance ◽  
Clock Cycle ◽  
Embedded Computing ◽  
Computing Systems ◽  
Processor Performance

The problems of creating of high-performance embedded computing systems based on microprocessors KOMDIV is considered. Processor performance is dependent upon three characteristics: clock cycle, clock cycles per instruction, and instruction count. These characteristics for microprocessors KOMDIV are optimized using parameter performance/power consumption and requirements of embedded systems.

Genetic Algorithms

2014 ◽  
pp. 239-255 ◽  
Author(s):  
Pabitra Mohan Khilar
Keyword(s):  
Genetic Algorithms ◽  
Fault Diagnosis ◽  
Distributed Computing ◽  
Embedded Systems ◽  
Distributed Embedded Systems ◽  
Distributed Computing Systems ◽  
Computing Systems ◽  
Satellite Systems ◽  
Complete Problems ◽  
Diagnosis Algorithm

Genetic Algorithms are important techniques to solve many NP-Complete problems related to distributed computing and its application domains. Genetic algorithm-based fault diagnoses in distributed computing systems have been a feasible methodology to solve diagnosis problems recently. Distributed embedded systems consisting of sensors, actuators, processors/microcontrollers, and interconnection networks are one class of distributed computing systems that have long been used, staring from small-scale home appliances to large-scale satellite systems. Some of their applications are in safety-critical systems where occurrence of faults can result in catastrophic situations for which fault diagnosis in such systems are very important. In this chapter, different types of faults, which are likely to occur in distributed embedded systems and a GA-based methodology to solve these problems along with the performance analysis of fault diagnosis algorithm have been presented. Nevertheless, the diagnosis algorithm presented here is well suitable for general purpose distributed computing systems with appropriate modification over system and fault model. In fact, this book chapter will enable the reader not only to study various aspects of fault diagnosis techniques but will also provide insight to build robust systems to allow for continued normal service despite the occurrence of failures.

Relay Protection Setting Calculation and Analysis of Auxiliary Power System for Hydropower Plants

2014 ◽  
Vol 574 ◽  
pp. 324-328
Author(s):  
Nian Fang ◽  
Xian Shan Li ◽  
Hao Xu ◽  
Yu Long Du
Keyword(s):  
Power System ◽  
Short Circuit ◽  
Relay Protection ◽  
Short Circuit Current ◽  
Hydropower Plant ◽  
System Protection ◽  
Auxiliary Power ◽  
Hydropower Plants ◽  
Actual Operation ◽  
Setting Calculation

The configuration and setting calculation of auxiliary power protection are directly related to the regular and safe operation of the equipments, thereby affecting the security and stability of the power plant. The system features are analyzed in depth according to the operational requirements of auxiliary power system protection in Xiangjiaba hydropower plant ,the system model is built on the basis of the actual project, and a variety of short-circuit current calculations are carried out. At last, the setting of the auxiliary power system relay protection is completed. This thesis also proposes solutions to the emerging problems in the process of protection setting. The results of the setting have been applied to the actual operation and no misoperation or maloperation caused by improper constant setting value has occurred so far in Xiangjiaba hydropower plant.

scholarly journals BASIC PRINCIPLES FOR LARGE ENTERPRISE AUTOMATED SYSTEM PROTECTION AGAINST CYBER ATTACKS

2017 ◽  
Vol 2017 (4) ◽  
pp. 84-89 ◽  
Author(s):  
Татьяна Карлова ◽  
Tatyana Karlova ◽  
Наталия Кузнецова ◽  
Nataliya Kuznetsova
Keyword(s):  
Cyber Attacks ◽  
Automated System ◽  
Basic Principles ◽  
Large Enterprise ◽  
System Protection

scholarly journals Determination of the spatial and temporal dynamics of water erosion development using GIS technologies

2020 ◽  
Vol 27 ◽  
pp. 00125
Author(s):  
Faik Safiollin ◽  
Mikhail Panasyuk ◽  
Svetlana Sochneva ◽  
Nikolai Trofimov
Keyword(s):  
Temporal Dynamics ◽  
Arable Land ◽  
Hydroelectric Power ◽  
Industrial Facilities ◽  
The Past ◽  
Power Stations ◽  
Erosion Processes ◽  
Spatial And Temporal Dynamics ◽  
The Republic

Currently, there are 0.21 hectares of arable land for every inhabitant of the planet. According to the UN forecast, the availability of arable land in the future will decrease to 0.14 ha/person not only due to population growth, but also due to land allotment for the construction of settlements, industrial facilities, hydroelectric power stations, mining and, most importantly, for strengthening erosion processes of anthropogenic nature. So, over the past 30 years, 58 hectares of arable land of the Bolsheelovskoye JV of the Elabuga municipal district of the Republic of Tatarstan has been withdrawn from agricultural circulation. In addition, a comparative assessment of the initial soil cartogram with a map compiled 30 years later using the geographic information system showed a 2-fold increasing area of medium washed-out soils and the transition of 100 hectares of unwashed-out arable land to the category of slightly washed. Based on the research results, we developed a set of anti-erosion measures, including the planting of stock-regulating and field-protecting forest strips, strip lane placement of crops and increasing soil fertility based on the biologization of farming.

scholarly journals Considerations Regardingthe Integration-Intrication Processin the Nature and Technology

2014 ◽  
Vol 64 (1) ◽  
pp. 82-87 ◽  
Author(s):  
Camelia Velia Tecaru Berekmeri ◽  
Ioan Blebea
Keyword(s):  
Embedded Systems ◽  
Cyberphysical Systems ◽  
Integration Process ◽  
Basic Principles ◽  
The World ◽  
The Future ◽  
Integral Education

Abstract The big challenges in education and R&D activities in the century just started are related on the complexity and transdisciplinarity understanding and promotion.The approaches are necessary in order to understand the unity of the world we live in through the unity of knowledge.The complexity is the result of the integration process.The paper presents fundamentals of the integration-intrication process in the nature and technology.The concept of integronics and the basic principles of the integration process are outlined too. Also the main features of mechatronics as environment for transdisciplinarity learning and the concept of integral education promotion are presented.The advanced mechatronics and the embedded systems are fundamentals of the cyberphysical systems of the future

A Survey of Tasks Scheduling Algorithms in Distributed Computing Systems

2021 ◽  
pp. 1269-1281
Author(s):  
Nutan Kumari Chauhan ◽  
Harendra Kumar
Keyword(s):  
Distributed Computing ◽  
Scheduling Algorithms ◽  
Computing System ◽  
Communication Link ◽  
Scheduling Problems ◽  
Distributed Computing Systems ◽  
Computing Systems ◽  
Tasks Scheduling ◽  
Scheduling Strategies ◽  
User Tasks

Distributed computing system (DCS) is a very popular field of computer science. DCS consists of various computers (processors) located at possibly different sites and connected by a communication link in such a manner that it appears as one system to the user. Tasks scheduling is a very interesting field of research in DCS. The main objectives of tasks scheduling problems are load balancing of processors, maximization of system reliability, minimizing the system cost, and minimizing the response time. Obviously, it is very complicated to satisfy all of the above objectives simultaneously. So, most of the researchers have solved the tasks scheduling problem with one or more objectives. The purpose of this chapter is to produce an overview of much (certainly not all) of tasks scheduling algorithms. The chapter is covering the little much valuable survey, tasks scheduling strategies, and different approaches used for tasks scheduling with one or more objectives.

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