scholarly journals Electric Power System Transformations: A Review of Main Prospects and Challenges

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5639
Author(s):  
Nikolai Voropai
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
New Technologies ◽  
System Development ◽  
Cyber Physical Systems ◽  
Electric Power System ◽  
Structure And Properties ◽  
System Operation ◽  
Physical Systems ◽  
And Control

The paper deals with the main prospects and challenges of radical transformations of electric power systems (EPSs) with changes in their structure and properties conditioned by wide use of innovative energy-related technologies and digitalization and intellectualization of system operation and control. Structural trends of EPS development are the focus of the analysis. Consideration is given to changes in EPS properties driven by the use of new technologies, to the problems of system flexibility and to its enhancement. EPS “resiliency” and “survivability” notions are subjected to comparison. The main factors favoring the formation of future EPSs to cyber-physical systems are discussed. Objective trends of EPS control and protection system development are under consideration.

Research on Aviation Electric Power Cyber Physical Systems

2013 ◽  
Vol 846-847 ◽  
pp. 126-133 ◽  
Author(s):  
Jian Bo Hu ◽  
Fei Li ◽  
Jun Wu ◽  
Jian Hao Wang ◽  
Li Peng Zhang
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Intelligent Systems ◽  
Control Strategies ◽  
Security Analysis ◽  
Electric Power Systems ◽  
Cyber Physical Systems ◽  
Electric Power System ◽  
Physical Systems ◽  
Electric Aircraft

More Electric Aircraft (MEA), which is the developing trend of the next generation of aircraft, put forward high demands on the electric power system. Cyber-Physical Systems (CPS) are a kind of novel intelligent systems with computation resources and controlled physical objects tightly integrated and interacted in the future network environment. CPS have the characteristics of real-time, synchronous, security, efficient and autonomous. This paper first elaborates the notion, characteristics, operation mechanism and technical challenges of CPS. The strategy of CPS-based next aviation electric power systems is presented. Then, the architecture of aviation electric power cyber physical systems is established. Finally, key technologies of aviation electric power cyber physical systems, including data bus, control strategies, energy management, security analysis, modeling and simulation, standardized and so on, are discussed. And directions are pointed out to offer a reference for the application of CPS in aviation electric power systems.

The Role of Artificial Intelligence and Fifth-Generation (5G) Technology in Mitigating Cyber Physical Attacks on Power Systems

2021 ◽  
pp. 424-441
Author(s):  
Kehinde Oluwafemi Olusuyi ◽  
Paul Kehinde Olulope ◽  
Abiodun Ernest Amoran ◽  
Eno Edet Peter
Keyword(s):  
Artificial Intelligence ◽  
Power Systems ◽  
Power System ◽  
Electric Power ◽  
New Technologies ◽  
Electric Power System ◽  
System A ◽  
Fifth Generation ◽  
Control Technologies ◽  
And Control

The present-day electric power system is an evolving cyber-physical system. Researchers and industry players in the energy world continue to deploy new technologies towards making the electric power system a smarter grid. This involves the integration of information, communication, and control technologies into the existing power grid in order to improve its stability, security, and operational efficiency. Reliance of the modern power system's applications such as state estimation, sequential control and data acquisition (SCADA) systems, phasor measurement units (PMUs), etc. on open communication technologies including the internet has exposed the smart grid to various vulnerabilities, threats, and cyber-physical attacks. This chapter seeks to exploit the robust synergy which exists between artificial intelligence (AI) and fifth-generation (5G) technology to mitigate these challenges. A comprehensive review of techniques which have hitherto proven efficient and/or effective in mitigating identified challenges was carried out with a view to availing researchers of future directions.

From the GOELRO Plan to the Global Electric Power Internet

2020 ◽  
Vol 12 (12) ◽  
pp. 9-13
Author(s):  
Nikolay I. VOROPAY ◽  
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Electric Power Industry ◽  
Electric Power Systems ◽  
Cyber Physical Systems ◽  
Structure And Properties ◽  
Regional Networks ◽  
Physical Systems ◽  
Software Products ◽  
Foreign Intervention

The GOELRO Plan adopted 100 years ago is briefly characterized, and the importance and necessity of its adoption under the conditions of post-revolution devastation and foreign intervention are substantiated. It is pointed out that the scales of the modern electric power industry are incommensurable with those the plan developers imagined in their dreams. The article tells about the establishment of large state, interstate, and intercontinental electric power systems and pools that make it possible to usefully utilize the system effects, which are profitable to all participants of the pools. It is pointed out that radical changes have occurred in the technology of energy generation, transmission, distribution, storage, and consumption, and also that transformations have occurred in the structure and properties of the systems. Digitalization of the systems implies improvement in the efficiency of production processes and development of new software products to perform control of substations, regional networks, etc. The future electric power systems will acquire the response of well-developed intelligent cyber-physical systems operating on the principles of electric power internet.

Integral Models of Developing Electric Power Systems

2013 ◽  
Vol 2 (4) ◽  
pp. 44-58 ◽  
Author(s):  
E. V. Markova ◽  
I. V. Sidler ◽  
V. V. Trufanov
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electric Power ◽  
System Development ◽  
Electric Power Industry ◽  
Electric Power System ◽  
Integral Model ◽  
Volterra Equations ◽  
Prony Method ◽  
Optimal Service

The first part of the paper is devoted to the problem of optimal control in the area of electric power industry which is described on the basis of a one-sector variant of Glushkov integral model of developing systems. The authors consider the ways uncertain conditions of future electric power system development influence the optimal service life. The results of calculations for the Unified Electric Power System of Russia are presented and analyzed. The second part of the paper deals with the application of Prony method to identification of the Volterra equations in the two-sector models of developing systems. The authors suggest a numerical method for identifying the efficiency function parameters. An illustrative example is given.

scholarly journals IoT-Based Digital Twin for Energy Cyber-Physical Systems: Design and Implementation

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4762 ◽  
Author(s):  
Ahmed Saad ◽  
Samy Faddel ◽  
Osama Mohammed
Keyword(s):  
Power Systems ◽  
Systems Design ◽  
Cyber Physical Systems ◽  
Superior Performance ◽  
Physical Systems ◽  
Digital Twin ◽  
Power And Control ◽  
Amazon Web Services ◽  
High Bandwidth ◽  
And Control

With the emergence of distributed energy resources (DERs), with their associated communication and control complexities, there is a need for an efficient platform that can digest all the incoming data and ensure the reliable operation of the power system. The digital twin (DT) is a new concept that can unleash tremendous opportunities and can be used at the different control and security levels of power systems. This paper provides a methodology for the modelling of the implementation of energy cyber-physical systems (ECPSs) that can be used for multiple applications. Two DT types are introduced to cover the high-bandwidth and the low-bandwidth applications that need centric oversight decision making. The concept of the digital twin is validated and tested using Amazon Web Services (AWS) as a cloud host that can incorporate physical and data models as well as being able to receive live measurements from the different actual power and control entities. The experimental results demonstrate the feasibility of the real-time implementation of the DT for the ECPS based on internet of things (IoT) and cloud computing technologies. The normalized mean-square error for the low-bandwidth DT case was 3.7%. In the case of a high-bandwidth DT, the proposed method showed superior performance in reconstructing the voltage estimates, with 98.2% accuracy from only the controllers’ states.

scholarly journals An Axiomatic Categorisation Framework for the Dynamic Alignment of Disparate Functions in Cyber-physical Systems

2019 ◽  
Vol 1 (1) ◽  
pp. 3581-3590
Author(s):  
Thomas J Byrne ◽  
Aleksandr Doikin ◽  
Felician Campean ◽  
Daniel Neagu
Keyword(s):  
Knowledge Integration ◽  
New Technologies ◽  
Health Management ◽  
Cyber Physical Systems ◽  
Physical Systems ◽  
Communication Devices ◽  
New Generation ◽  
And Control ◽  
Functional Transformations ◽  
Dynamic Alignment

AbstractAdvancing Industry 4.0 concepts by mapping the product of the automotive industry on the spectrum of Cyber Physical Systems, we immediately recognise the convoluted processes involved in the design of new generation vehicles. New technologies developed around the communication core (IoT) enable novel interactions with data. Our framework employs previously untapped data from vehicles in the field for intelligent vehicle health management and knowledge integration into design. Firstly, the concept of an inter-disciplinary artefact is introduced to support the dynamic alignment of disparate functions, so that cyber variables change when physical variables change. Secondly, the axiomatic categorisation (AC) framework simulates functional transformations from artefact to artefact, to monitor and control automotive systems rather than components. Herein, an artefact is defined as a triad of the physical and engineered component, the information processing entity, and communication devices at their interface. Variable changes are modelled using AC, in conjunction with the artefacts, to aggregate functional transformations within the conceptual boundary of a physical system of systems.

scholarly journals Fast frequency oscillations detection in low inertia power systems with excessive demand-side response for frequency regulation

2021 ◽  
Vol 19 ◽  
pp. 557-560
Author(s):  
Leo Casasola-Aignesberger ◽  
◽  
Sergio Martinez
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electric Power ◽  
Demand Response ◽  
Electric Power System ◽  
Frequency Regulation ◽  
Demand Side ◽  
System Operation ◽  
Demand Side Response ◽  
System Inertia

The reduction in inertia present in electric power systems due to the increase in renewable generation interfaced with power converters presents various challenges in power system operation. One of these challenges is keeping the frequency of the system within acceptable bounds, as the reduced inertia allows faster changes in frequency. A possible way to mitigate this effect is to introduce a certain degree of frequency response in the demand side, in such a way that a loss in generation leads to a decrease in the demanded power, levelling the generation-demand balance. In this paper, one limitation of this approach is analysed, specifically the case where the demand response is excessive to the system inertia and demand, producing fast frequency oscillations. A scenario where this happens, on a simulated islanded system based on the electric power system of the island of San Cristóbal, in Galápagos (Ecuador), is studied, and a method of detecting these oscillations is proposed, as a first step to develop an appropriate response to them.

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