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14th International Conference Management of Large-Scale System Development, MLSD 2021

作者： Vitaly, Promyslov Olga, Promyslova Laboratory of Distributed Information and Control Systems V.A. Trapeznikov Institute of Control Sciences of RAS Moscow Russia

ISBN: (纸本)9781665412308

This article presents the model of the lossless network system with an input flow control regulator. The regulator uses a static window flow control algorithm to cut out of band data. The system consists of sequent connected devices, and the feedback to the regulator is provided from each device in the chain. This provides adaptive control algorithm implementation taking into account the buffer overflow in separate parts of the system. Limiting the input flow is a defense measure against denial of service (DoS) attacks. This algorithm is especially well for brute force kind of DoS attack. They don't use information about the internal structure of the attacked system. The model uses the Network Calculus approach for simulation of the regulator and computing the main characteristics of the system. © 2021 IEEE.

关键词： Denial-of-service attack

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Digital Twin of the Technological Process of the NPP Power Unit 14

Digital Twin of the Technological Process of the NPP Power U...

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14th International Conference Management of Large-Scale System Development, MLSD 2021

作者： Jharko, Elena V.A. Trapeznikov Institute of Control Sciences of RAS Laboratory of Distributed Information and Control Systems Moscow Russia

ISBN: (纸本)9781665412308

The article presents a flexible modeling system (FMS) of an NPP power unit. The principles of constructing an FMS based on selective programming and its structure are described, and the modeling and experimental data results are compared. This FMS can be considered a digital twin of an NPP power unit, which makes it possible to predict the course of the technological process and simulate the actions of operating personnel and failures of technological equipment. © 2021 IEEE.

关键词： Nuclear power plants

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Some Aspects of Quality Assurance in the Development of Digital systems 14

Some Aspects of Quality Assurance in the Development of Digi...

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14th International Conference Management of Large-Scale System Development, MLSD 2021

作者： Jharko, Elena Laboratory of Distributed Information and Control Systems V.A. Trapeznikov Institute of Control Sciences of RAS Moscow Russia

ISBN: (纸本)9781665412308

The article discusses an approach to the quality management system of digital systems, which unites all stages of the life cycle. Some aspects of quality assurance in digital systems development were considering this approach, and the main factors of unsatisfactory quality were noted. The core of the digital system is system and application software;therefore, special attention is paying to the consideration of software errors (their categories and consequences) and the principles of building reliable software used in the development of software for upper-level digital systems of NPP APCS. © 2021 IEEE.

关键词： Quality assurance

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Critical information systems: Software Quality and Dependability

Critical Information Systems: Software Quality and Dependabi...

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International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM)

作者： Elena Jharko Laboratory of Distributed Information and Control Systems V.A. Trapeznikov Institute of Control Sciences of the Russian Academy of Sciences Moscow Russia

One of the main directions of management development in current conditions has become the massive use of the latest computer and telecommunications equipment and the formation of highly efficient information technologies. information technology, information systems, and high-productivity technologies are the key systems of the innovation economy. These technologies are fundamentally changing all ways of receiving, processing, transmitting, and producing information and are fundamentally technologizing intellectual activity. Hence the exceptional importance of building reliable and functionally secure information systems, the central element of which is software. The paper presents models and metrics of software quality, considers issues of ensuring functional reliability, shows the relationship between functional and information security of critical information systems for facilities with an increased risk of operation, and presents a comprehensive model for determining the probability of parrying any information attack from a stream of attacks. The presented approaches are used to develop top-level systems for automated process control systems for nuclear power plants.

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Flexible Modeling System: Steam Generator Model

Flexible Modeling System: Steam Generator Model

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International Russian Automation Conference (RusAutoCon)

作者： Elena Jharko Laboratory of Distributed Information and Control Systems V.A. Trapeznikov Institute of Control Sciences of the Russian Academy of Sciences Moscow Russia

The paper considers the factors stimulating the development of new, more efficient power unit control systems. A diagram of a flexible modeling system is presented with a breakdown into functional blocks corresponding to the systems of a power unit with a VVER-1000 type reactor. The paper presents a mathematical model of a steam generator, part of a flexible modeling system. The mathematical model describes the thermohydraulic state of steam generators and steam pipelines connecting them to the turbine. An algorithm for calculating the parameters of steam generators and steam pipelines at a new time step is presented. Verification of the presented model of the steam generator in the dynamic mode of the NPP power unit with a VVER-1000 reactor with the isolation valve of the steam generator at the stage of mastering the power of 75% was verified and showed good agreement between the calculated and experimental data.

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Life cycle and quality assurance of software for systems of critical information infrastructure facilities

Life cycle and quality assurance of software for systems of ...

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2021 International Conference on Industrial Engineering, Applications and Manufacturing, ICIEAM 2021

作者： Jharko, Elena Laboratory of Distributed Information and Control Systems V.A. Trapeznikov Institute of Control Sciences Russian Academy of Sciences Moscow Russia

ISBN: (纸本)9781728145877

The use of instrumentation and control systems, the most essential element of which is software (SW), for facilities of critical information infrastructure, has led to increased requirements for both the quality of SW in general and its reliability. The choice of the type of software life cycle plays an essential role in the software quality assurance process. However, regardless of the life cycle choice, software verification and validation (V&V) processes are fundamental to quality assurance. The article proposes a qualitative V&V model of the security management process using the example of cybersecurity and a quantitative method for assessing the sustainability of security measures based on the entropy change model. © 2021 IEEE.

关键词： Nuclear power plants

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Digital Twin of Npps: Simulation systems and Verification

Digital Twin of Npps: Simulation Systems and Verification

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2021 International Russian Automation Conference, RusAutoCon 2021

作者： Jharko, Elena V.A. Trapeznikov Institute of Control Sciences of Russian Academy of Sciences Laboratory of Distributed Information and Control Systems Moscow Russia

ISBN: (纸本)9780738131566

The article discusses the approach conformity with which the flexible software package (FMSP) is the kernel of the digital twin of an NPP power unit. The models that are part of the FMSP cover the main and a number of auxiliary technological systems of the power unit, automatic control systems. The developed flexible modeling software package is designed to simulate dynamic processes occurring in NPP power units with VVER-1000 reactors. The FMSP allows considering various types of violations in the operation of safety systems and energy imbalances in the reactor core. The results of verification of a flexible modeling complex based on stationary neutron-physical calculations of the VVER-1000 reactor core using the BIPR-7 program and NPP operational data are presented. © 2021 IEEE.

关键词： Verification

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A Novel Evaluation Strategy to Artificial Neural Network Model Based on Bionics

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Journal of Bionic Engineering 2022年第1期19卷 224-239页

作者： Sen Tian Jin Zhang Xuanyu Shu Lingyu Chen Xin Niu You Wang School of Mathematics and Statistics Hunan Normal UniversityChangsha410081China College of Information Science and Engineering Hunan Normal UniversityChangsha410081China School of Computer and Communication Engineering Changsha University of Science and TechnologyChangsha410114China Key Laboratory of Industrial Control Technology Zhejiang UniversityHangzhou310058China Science and Technology on Parallel and Distributed Laboratory College of ComputerNational University of Defense TechnologyChangsha410199China Key Laboratory of Industrial Control Technology Institute of Cyber Systems and ControlZhejiang UniversityHangzhou310027China

With the continuous deepening of Artificial Neural Network(ANN)research,ANN model structure and function are improving towards diversification and ***,the model is more evaluated from the pros and cons of the problem-solving results and the lack of evaluation from the biomimetic aspect of imitating neural networks is not inclusive ***,a new ANN models evaluation strategy is proposed from the perspective of bionics in response to this problem in the ***,four classical neural network models are illustrated:Back Propagation(BP)network,Deep Belief Network(DBN),LeNet5 network,and olfactory bionic model(KIII model),and the neuron transmission mode and equation,network structure,and weight updating principle of the models are analyzed *** analysis results show that the KIII model comes closer to the actual biological nervous system compared with other models,and the LeNet5 network simulates the nervous system in ***,evaluation indexes of ANN are constructed from the perspective of bionics in this paper:small-world,synchronous,and chaotic ***,the network model is quantitatively analyzed by evaluation indexes from the perspective of *** experimental results show that the DBN network,LeNet5 network,and BP network have synchronous *** the DBN network and LeNet5 network have certain chaotic characteristics,but there is still a certain distance between the three classical neural networks and actual biological neural *** KIII model has certain small-world characteristics in structure,and its network also exhibits synchronization characteristics and chaotic *** with the DBN network,LeNet5 network,and the BP network,the KIII model is closer to the real biological neural network.

关键词： Artificial neural network(ANN) Back Propagation(BP)network Deep Belief Network(DBN) LeNet5 network Olfactory bionic model(KIII model) Small world Chaos Synchronous

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Intelligent Support systems for NPP Operators: Dynamic Modeling and Operational Diagnostics

Intelligent Support Systems for NPP Operators: Dynamic Model...

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International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM)

作者： Elena Jharko Kirill Chernyshov Laboratory of Distributed Information and Control Systems V.A. Trapeznikov Institute of Control Sciences of the Russian Academy of Sciences Moscow Russia Laboratory of Identification of Control Systems V.A. Trapeznikov Institute of Control Sciences of the Russian Academy of Sciences Moscow Russia

The efficiency of human-machine interaction is highly dependent on the quality of information support that the power unit (PU) operators receive from the control system in different operating modes of NPP PU. The paper shows the importance of intelligent support systems (ISS) for NPP operators to ensure the reliable operation of the NPP power unit. The most significant elements of the ISS for operators in terms of the diagnostic system are the block of dynamic modeling, which anticipates the course of technological processes, and the expert system. The paper analyzes the state of the problem of creating dynamic modeling systems, singles out a "three-step" approach to creating the predictive models of a technological process, and shows its shortcomings. Relationships between dynamic modeling and operational diagnostics (OD) are presented. A group of standard diagnostic systems and classes of problems of the solvable problems of ODs are considered. The implementation of the solution to the problem of diagnosing in the intelligent support system of the NPP operator, as well as functional diagrams of operational diagnostics, is presented. The proposed implementation of the tasks of operational diagnostics is used to create intelligent support systems for NPP operators.

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Digital Twins: Forecasting and Formation of Optimal control Programs for NPP Power Units

Digital Twins: Forecasting and Formation of Optimal Control ...

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International Russian Smart Industry Conference (SmartIndustryCon)

Industries, especially in the energy sector, are using digital twins to improve work efficiency and optimize operating modes. Digital twins have based on models that accurately describe the geometry, physical properties, behavior, and rules that characterize an object. The article presents an example of functional decentralization of digital twin models as a decomposition of an NPP power unit (PU) with a VVER-1000 reactor as a control object into a set of technological subsystems of functional groups. Approaches to the digital twins’ creation of NPP PU and the main directions for using digital twins based on dynamic models of a PU in advanced control systems for NPP power units are presented. Within the framework of the intelligent operator support system, a "three-stage" approach to the problem of forecasting the state of the NPP PU, based on digital twins, and the principles of forming the PU optimal control are proposed. The proposed approaches to creating digital twins are used to create intelligent support systems for operators.

关键词： Industries Geometry Optimal control Process control Reliability engineering Digital twins Personnel

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