Research and Production Corporation Radiy

Kirovohrad, Ukraine

Research and Production Corporation Radiy

Kirovohrad, Ukraine
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Kuchuk G.,National Aerospace University | Kharchenko V.,National Aerospace University | Kovalenko A.,Kharkov National University of Radio Electronics | Ruchkov E.,Research and Production Corporation Radiy
Proceedings of 2016 IEEE East-West Design and Test Symposium, EWDTS 2016 | Year: 2016

Traffic control in modern computer networks, including those within critical infrastructures (e.g. Nuclear Power Plants), implies various optimization problems solving by switching/routing devices in real time. Some of such problems include, for example, choosing of optimal route, distribution of data packets during multiway routing, redistribution of both service and user data, efficient changing of virtual configuration in network segment containing a bottleneck, which, in turn, appeared due to fault or failure of some physical links. In a majority of cases, input data in such problems have a discrete character (for example, traffic samples, statistical estimations, etc.); hence, it is inevitable to use algorithms of discrete optimization. Combinatorial algorithms for finding the solution in discrete optimization problem, applied to switching/routing nodes of critical infrastructures' networks, are considered. Conditions for selection of algorithm type, depending on nature of the problem, are determined. Implicit enumeration algorithms on lacing and tree, as well as algorithms of dynamic programming method are analyzed in details. © 2016 IEEE.


Kharchenko V.,National Aerospace University - Kharkiv Aviation Institute | Gorbenko A.,National Aerospace University - Kharkiv Aviation Institute | Sklyar V.,Research and Production Corporation Radiy | Phillips C.,Northumbria University
International Conference on Digital Technologies 2013, DT 2013 | Year: 2013

Information and communication technologies (IT) and IT-based instrumentation and control (I&C) systems, hardware and software components are analyzed in context of 'green' paradigm. Green IT paradigm is formulated as a Cartesian product of a pair 'external (E) and internal (I) aspects of IT and computer-based I&Csystems' and a pair 'power (recourse) consumption minimization (Rmin) and safety maximization (Smax)'. In the paper we discuss main research challenges and development solutions, education and training activities in the domain of green and safe computing and communication. Finally, we report results of EU-TEMPUS projects in the area of safe and green ITs and define models of academia and industry cooperation for excellence, innovations and knowledge exchange. © 2013 IEEE.


Odarushchenko O.,Research and Production Corporation Radiy | Sklyar V.,Research and Production Corporation Radiy
International Conference on Nuclear Engineering, Proceedings, ICONE | Year: 2015

The fault injection/insertion testing (FIT) is one of the key techniques applied for independent verification and validation (IVV) of software and FPGA-based safety critical NPP instrumentation and control systems (I&Cs). The technique is based on design fault injection into the software code including VHDL code, physical faults into programmable CPU-based or FPGA chips and modules. The requirements for FIT as a verification technique are described by the standard NUREG/CR-7151 which in addition to the injection of single faults recommends employing a multifault injection technique (MFIT). Requirements of the NUREG/CR-7151 are analyzed and normative profile related to FIT and MFIT are discussed considering FPGA features. The application of MFIT, on the one part, increases the verification time and complicates procedure and tools supporting testing, and, contrariwise, significantly improves the quality of the system and trustworthiness of safety and dependability assessment. This paper offers the approach to development of MFIT for FPGA-based NPP I&Cs taking into account features of such systems. Injection of faults is performed into VHDL code, chip and FPGA-based module. Injection may be fulfilled by use of a few procedures such as (1) single fault by fault injection with (a) and without (b) elimination of injected faults, (2) injection of multi-faults. Besides, two levels of I&Cs are considered in point of view MFIT: first one is FPGA module level, second one is system level. Industrial case of single and multi-fault injection techniques application is described for the FPGA-based platform RadICS. The proposed approach (FIT and MFIT) can be applied to different technologies of NPP I&Cs development. Copyright © 2015 by JSME.


Kharchenko V.,Center for Safety Infrastructure Oriented Research and Analysis | Brezhnev E.,Center for Safety Infrastructure Oriented Research and Analysis | Sklyar V.,Research and Production Corporation Radiy | Duzhyi V.,National Aerospace University - Kharkiv Aviation Institute
9th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2015 | Year: 2015

This paper analyses features of Field Programmable Gate Arrays (FPGA)-based Nuclear Power Plants (NPPs) Instrumentation and Control (I&C) systems in context of safety assessment and assurance using diversity approach. One of them is considering features of FPGA technology to assess and make decisions for multi-version NPP I&Cs on the different stages of life cycle. Such decisions relate to assessment of compliance with requirements of standards for modernized I&Cs (for example, reactor protection systems) and selection of the best multi-version structure according to criteria safety/cost taking into account existed FPGA platforms. The goals of the paper are to analyze regulatory requirements of the standards and develop of the normative profile for multi-version NPP I&Cs, to improve the technique for assessment of the compliance with these requirements, to develop a procedure for choice of diversity types, to illustrate implementation of the techniques and tools for modernization of reactor protection systems using FPGA platform RadlCS. The standards and guides regarding diversity and FPGA application are analysed. The regulatory requirements relate to application of principle of diversity; diversity types which can be used; risk analysis of diversity use during operation and maintenance; assessment of actual value of diversity in developed or modernized systems. The method of diversity assessment is based on the metric-oriented procedure consisting in qualitative estimation of compliance with requirements and quantitative estimation of diversity metrics using NUREG/CR7007-based technique. Examples of the proposed techniques application to assess and choice diversity types for NPP I&Cs modernization using FPGA-based platforms are discussed.


Kharchenko V.,National Aerospace University - Kharkiv Aviation Institute | Gordieiev O.,University of Banking of the National Bank of Ukraine | Vilkomir S.,East Carolina University | Odarushchenko O.,Research and Production Corporation Radiy
9th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2015 | Year: 2015

One well-known method for the verification and certification of NPP I&C and other safety critical systems is the fault injection technique (FIT). FIT is based on a design fault injection and vulnerability injection into the software code and the field-programmable gate array (FPGA) design or a physical fault injection into hardware modules. The requirements for FIT for safety critical applications are described in detail in the standard NUREG/CR-7151. In addition to the injection of single faults, NUREG/CR-7151 recommends employing a multi-fault injection technique (MFIT). The application of MFIT increases the verification time, but it has the potential to significantly improve the quality of the system. This paper reviews different MFITs for FPGA-and software-oriented systems, with special consideration to NPP I&C systems. To increase the effectiveness of the fault injection, an MFIT procedure that applies the t-wise combinatorial method is proposed. This method allows combinations of multiple faults to be found and provides full coverage of all combinations of any t-types of faults with a minimum number of checks. While the t-wise method is well known in software testing, to the best of our knowledge, this is its first application to the fault injection. Different types of coverage are considered. A case study of MFIT is considered based on a project of FPGA-based modules for NPP I&C systems.


Andrashov A.A.,Research and Production Corporation Radiy | Bakhmach I.S.,Research and Production Corporation Radiy | Sklyar V.V.,Research and Production Corporation Radiy | Kovalenko A.A.,Center for Safety Infrastructure Oriented Research and Analysis
9th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2015 | Year: 2015

Platform and can be installed to newly built NPPs or to NPPs during modernization in a short-term and cost-effective way. In 2014 RPC Radiy has successfully accomplished two modernization projects for Embalse NPP in Argentina, which operator is Canadian-based company CANDU Energy. Nuclear applications in the scope of such projects were completely based on FPGA technology and involved development of Main Control Room and Secondary Control Area window annunciators and pump motor speed measuring devices.Instrumentation and Control (I&C) systems represent one of several most important parts of each Nuclear Power Plant (NPP). I&C modernization projects are performed in the context and to support the overall NPP goals, objectives, and internal and external commitments. The goals and objectives of NPPs are defined substantially by the utilities long-term and short-term business plans. FPGA-based I&C applications may contribute to successful implementation of NPPs I&C modernization projects. One of the prospective modern trends in designing and development of NPP I&C systems is in use of Field Programmable Gates Array (FPGA) technology. Various functions are being implemented on the basis of FPGA technology in reliable and convenient way. The application of FPGA technology has significant advantages that can be utilized both in I&C modernization projects of existing NPPs and in I&C designs for new NPPs. RPC Radiy is the leading Ukrainian developer and supplier of advanced FPGA-based digital I&C systems for NPPs and thermal power stations for more than last 15 years; such systems are based on proprietary RadlCS


Gordieiev O.,Banking Institute University | Kharchenko V.,National Aerospace University - Kharkiv Aviation Institute | Fominykh N.,Banking Institute University | Sklyar V.,Research and Production Corporation Radiy
Advances in Intelligent Systems and Computing | Year: 2014

Evolutionary analysis of software (SW) quality models (QM) over the past forty years, from one of the first software QM by McCall to the model presented in the standard ISO 25010 is performed. 9 models were chosen for the analysis and divided into sets of basic and corporate QMs according to the completeness, detailing and significance. The choice of basic models McCall (1977), IEEE 1219 (1993), ISO9126-1 (2001), ISO 25010 (2010) is grounded. QM structure is described by hierarchy whose elements are sets of characteristics (subcharacteristics) and relations of subordination between them. To assess the complexity and completeness of SW QM and to compare them with the latest ISO 25010 model special particular and general metrics are introduced. Analytic dependence of the growth of model complexity represented by a linear function is obtained. Analysis of some characteristics evolution (operational suitability, effectiveness, reliability, usability, safety, etc) is performed. © Springer International Publishing Switzerland 2014.


Kharchenko V.,National Aerospace University - Kharkiv Aviation Institute | Kharchenko V.,Research and Production Corporation Radiy | Gorbenko A.,National Aerospace University - Kharkiv Aviation Institute
Proceedings of IEEE East-West Design and Test Symposium, EWDTS 2013 | Year: 2013

The research and implementation issues in areas of safety and energy critical SW-, HW- and FPGA-based systems in context of John Von Neumann's paradigm (VNP) are discussed. The stages of the VNP evolution and related problems connected with creation of dependable (and safe) systems out of undependable (and unsafe) components are analyzed. Aspects of the VNP development regarding resilient and green computing are described. A conception of green and safe computing is formulated. Features of the VNP application for green computing are analyzed. © 2013 IEEE.


Brezhnev E.,National Aerospace University - Kharkiv Aviation Institute | Kharchenko V.,National Aerospace University - Kharkiv Aviation Institute | Siora A.,Research and Production Company Radiy | Sklyar V.,National Aerospace University - Kharkiv Aviation Institute
International Topical Meeting on Probabilistic Safety Assessment and Analysis 2011, PSA 2011 | Year: 2011

This paper presents the technique for the power grid safety assessment based on accident risk-analysis by use of the dynamical and hierarchical criticality matrixes (D&HCM). The technique is founded on principles suggested for the power grid safety assessment. The basic tool is Failure Modes, Effects and Criticality Analysis (FMECA) supplemented with changes in procedure according to the features of safety assessment process. The power grid safety assessment model is presented as a graph of criticality with edges connecting the nodes corresponding with subsystems of next higher and lower levels. The nodes are described by criticality matrixes. The changes of subsystems' failures criticality during the power grid operation are the results of sequential changes of subsystems' states (transition to state of non-operability) or the changes of failures probabilities caused by influence of the operational environment or factor of time (physical or automaton time). This approach suggests considering the interaction and mutual influence among subsystems which results to multiple failures, change of the criticality and risk values. In this way the capacities of FMECA-based safety assessment may be expanded. The accident in Sayano-Shushenskaya hydroelectric power station was investigated on dynamical and hierarchical criticality matrixes-based analysis.


Trademark
Research and Production Corporation Radiy | Date: 2011-12-12

Instrumentation and control systems for monitoring and controlling industrial processes; digital instrumentation and control systems for monitoring and controlling industrial processes; instrumentation and control systems for performing control and protection functions in industrial processes; nuclear reactor trip systems for shutting down nuclear reactors when pre-defined set-points of physical variables are reached; measurement sensors and detectors; electronic industrial controls for monitoring industrial processes; digital instrumentation and control systems for receiving input signals from measurement sensors measuring physical variables of an industrial process and for generating output control signals for actuators to place the monitored industrial process into a desired state. Automated devices, namely, automated remote control devices for controlling and monitoring the operation of critical systems for nuclear plants; digital equipment of automated control systems, namely, automated digital controls for nuclear plants; safety control systems comprising computer hardware and software to maintain safety in nuclear plants; electronic control devices for monitoring and control of nuclear plant operations; nuclear reactor trip units for actuators shutting down nuclear plants and placing them into a safe state; electronic sensors for monitoring of nuclear power plants; Measuring instrumentation and apparatus, namely, convertors and digitizers; electronic devices for receiving input signals from sensors monitoring parameters of plant operations to generate output signals to activators. Designing and producing digital instrumentation and control systems for performing monitoring, control and protection functions in nuclear plants.

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