scholarly journals Reliability Analysis of Cyber–Physical Systems: Case of the Substation Based on the IEC 61850 Standard in China

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2589 ◽  
Author(s):  
Ye Cai ◽  
Yu Chen ◽  
Yong Li ◽  
Yijia Cao ◽  
Xiangjun Zeng
Keyword(s):  
Reliability Analysis ◽  
Power Loss ◽  
Cyber Physical Systems ◽  
Cascading Failure ◽  
Cyber Physical System ◽  
Analysis Method ◽  
Iec 61850 ◽  
Physical Systems ◽  
Communication Devices ◽  
Two Indices

With the increasing interaction between physical devices and communication components, the substation based on the IEC 61850 standard is a type of cyber–physical system. This paper proposes a reliability analysis method for substations with a cyber–physical interface matrix (CPIM). This method calculates the influences from both the physical device failures and the communication devices failures. Two indices, Probability of Load Curtailments and Expected Demand Not Supplied, are used in the reliability analysis. Given the simplified model of the practical substation based on the Chinese IEC 61850 standard, the results show that the substation system had a potential risk of cascading failure under the cyber–physical fusion trend, as the failure in cyber layer would increase the power loss of the whole system. The changing magnitude of Expected Demand Not Supplied increased significantly with increasing transmission delay rate of the process bus.

Emerging Cyber-Physical Systems : An Overview

2018 ◽  
pp. 306-316
Author(s):  
Okolie S.O. ◽  
Kuyoro S.O. ◽  
Ohwo O. B
Keyword(s):  
Health Care ◽  
Economic Benefit ◽  
Physical World ◽  
Cyber Physical Systems ◽  
Cyber Physical System ◽  
Economic Sectors ◽  
Strategic Research ◽  
Physical Systems ◽  
Security Issues ◽  
Wide Range

Cyber-Physical Systems (CPS) will revolutionize how humans relate with the physical world around us. Many grand challenges await the economically vital domains of transportation, health-care, manufacturing, agriculture, energy, defence, aerospace and buildings. Exploration of these potentialities around space and time would create applications which would affect societal and economic benefit. This paper looks into the concept of emerging Cyber-Physical system, applications and security issues in sustaining development in various economic sectors; outlining a set of strategic Research and Development opportunities that should be accosted, so as to allow upgraded CPS to attain their potential and provide a wide range of societal advantages in the future.

scholarly journals OPEN-SCIENCE SPACE ISSUE: CALIBRATION OF MEASURING CHANNELS OF NON-DISMANTLING CYBER-PHYSICAL SYSTEMS

2021 ◽  
Vol 82 (3) ◽  
pp. 12-17
Author(s):  
Bohdan Stadnyk ◽  
◽  
Vasyl Yatsuk ◽  
Mykola Mykyjchuk ◽  
Svyatoslav Yatsyshyn ◽  
...  
Keyword(s):  
Physical System ◽  
Open Science ◽  
Cyber Physical Systems ◽  
Metrological Characteristics ◽  
Cyber Physical System ◽  
Cyberphysical Systems ◽  
Time Code ◽  
Efficient Operation ◽  
Physical Systems ◽  
Physical Quantities

The analysis of the concept of Open-Science Space is carried out. The existence of ways to achieve reproducibility and traceability of research results performed by a group of worldwide situated Cyber-physical system operators/supervisors is shown. Ways to ensure the efficient operation of Cyber-physical systems as complex technological nondemountable objects with high requirements for metrological characteristics have been studied. To develop the scattered cyberphysical systems, the portable stable-in-time code-controlled measures of physical quantities have been studied. They have to be metrologically confirmed in the laboratory before the delivery to the site of the measuring subsystem for its calibration.

Reliability Analysis of Cyber-Physical Systems in Substation

2019 ◽  
pp. 103-117
Author(s):  
Yijia Cao ◽  
Yong Li ◽  
Xuan Liu ◽  
Christian Rehtanz
Keyword(s):  
Reliability Analysis ◽  
Cyber Physical Systems ◽  
Physical Systems

Bayesian Model for Evaluating Real-World Adaptation Progress of a Cyber-Physical System

2021 ◽  
pp. 324-343
Author(s):  
Arif Sari ◽  
Joshua Chibuike Sopuru
Keyword(s):  
Work Environment ◽  
Real World ◽  
Environmental Conditions ◽  
Physical System ◽  
Bayesian Model ◽  
Cyber Physical Systems ◽  
Cyber Physical System ◽  
Industrial Activities ◽  
Physical Systems

Cyber-physical systems, also known as CPS, have come to stay. There is no doubt, CPS would one day outnumber humans in industries. How do we evaluate the adaptation progress of these systems considering changing environmental conditions? A failed implementation of a CPS can result to a loss. Since CPSs are designed to automate industrial activities, which are centred on the use of several technologies, collaboration with humans may sometimes be inevitable. CPSs are needed to automate several processes and thus help firms compete favourably within an industry. This chapter focuses on the adaptation of CPS in diverse work environment. Considering the ecosystem of the CPS, the authors present a Bayesian model evaluating the progress of adaptation of a CPS given some known conditions.

Theoretical Foundations for Cyber-Physical Systems: A Literature Review

2017 ◽  
Vol 02 (03) ◽  
pp. 1750013 ◽  
Author(s):  
Hong Chen
Keyword(s):  
Literature Review ◽  
Large Scale ◽  
Cyber Physical Systems ◽  
Research Trends ◽  
Cyber Physical System ◽  
Extensive Review ◽  
Comprehensive Overview ◽  
Physical Systems ◽  
Scopus Database ◽  
Theoretical Foundations

Cyber-Physical System (CPS) is a kind of large-scale and networked system that has drawn much attention in academia recently. Existing studies provide the extent for CPS research, but a systematic and extensive review of recent research on CPS is missing. Accordingly, this paper reviews 83 papers regarding theoretical foundations for CPS from 2012 to 2017 in the Scopus database aiming to provide scholars and practitioners with a comprehensive overview. The selected papers are grouped into 10 research categories. The contents of the papers in each research category are summarized. The challenges and research trends are illustrated as well.

scholarly journals A Combined Model of Secure Cyber-Physical Systems for their Design and Verification

2019 ◽  
Vol 5 (4) ◽  
pp. 114-123
Author(s):  
D. Levshun ◽  
A. Chechulin ◽  
I. Kotenko
Keyword(s):  
Cyber Physical Systems ◽  
Emergent Properties ◽  
Cyber Physical System ◽  
Combined Model ◽  
Physical Systems ◽  
Main Challenge ◽  
Proposed Model ◽  
Access Control System ◽  
Single Approach ◽  
Significant Data

In this paper a combined model of secure cyber-physical systems for their design and verification is proposed. Within the framework of this model, a cyber-physical system is represented as a set of blocks with various properties and relationships between them. The main challenge in such model construction is to combine various approaches to the modeling of cyber-physical systems (or their elements) within a single approach. The main goal of the proposed modeling approach is to provide the ability to convert various models into each other without losing significant data about the elements of the system, as well as taking into account the emergent properties that arise in the process of their interaction. The correctness of the proposed model is validated by the example of its use for design and verification of access control system.

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