NB/T 20015-2021 PDF English
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NB/T 20015-2021: Nuclear power plant simulators for use in operator training and examination---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/NBT20015-2021
NB
ENERGY INDUSTRY STANDARD
ICS 27.120.10
CCS F 83
Replacing NB/T 20015-2010
Nuclear Power Plant Simulators for Use in Operator
Training and Examination
Issued on. APRIL 26, 2021
Implemented on. JULY 26, 2021
Issued by. National Energy Administration
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative References... 5
3 Terms and Definitions... 5
4 General... 9
5 Test Requirements... 19
6 Configuration and Management of the Simulator... 28
Appendix A (Informative) Application Example of Steady-State Allowable Error of
Simulator... 31
Appendix B (Normative) Guidelines for the Implementation of Simulator Operability
Tests... 32
Appendix C (Informative) Guidelines for the Preparation of Simulator Design and Test
Documents... 38
Bibliography... 42
1 Scope
This Document specifies the functional requirements of the full range simulator of the control
room of a pressurized water reactor nuclear power plant (hereinafter referred to as the simulator)
used for operator training and examination, as well as the simulation range, performance and
functional criteria of the simulator.
This Document is applicable to the simulator of a pressurized water reactor nuclear power plant,
and can also be used as a reference for simulators of non-pressurized water reactor nuclear
power plants and other nuclear facilities.
2 Normative References
There are no normative references in this Document.
3 Terms and Definitions
For the purposes of this Document, the following terms and definitions apply.
3.1 Reference unit
Determine the specific nuclear power plant unit on which the simulator control room
configuration, system control settings and design database are based.
3.1 Simulation
Use modeling techniques in a simulator development environment to replicate the systems or
subsystems of the reference unit.
3.3 Stimulation
The simulator uses the actual hardware and software of the reference unit's system or subsystem
to replicate the corresponding system or subsystem of the reference unit.
3.4 Emulation
Specifically refers to replicating the system or subsystem of the reference unit by moving the
software of the system or subsystem of the reference unit to the simulator operating
environment (the hardware platform can be a simulation host or an independent computer).
3.5 Visually simulated hardware
Hardware that provides only realistic appearance and visual guidance on the simulator control
panel, but has no interface with the dynamic simulation model.
4 General
4.1 Overview
Nuclear power plant simulators used for initial training, retraining and examination of operators
shall use a specific unit as the reference unit. The simulation range shall enable operators to
take the same operation through the operating procedures of the reference unit to handle a
certain change process on the simulator as the operation taken on the reference unit. The
simulation range shall allow all the change processes specified in this Clause to be handled until
a stable operating condition is obtained.
4.2 Capabilities of the simulator
4.2.1 General requirements
The simulator response caused by the operator's operation, no operator operation, improper
operator operation and the reference unit automatic control and inherent characteristics shall be
realistic; it shall not violate the natural physical laws such as mass, motion and energy
conservation; and shall comply with the provisions of the verification, confirmation and
performance test criteria specified in Clause 5.
4.2.5 Normal operation
4.2.5.1 Overview
The simulator shall be able to continuously simulate the change procedures of the reference
units listed in 4.2.5.2 and 4.2.5.3 without changing the mathematical model or initial conditions.
The simulator shall be able to calculate the system parameters of different operating conditions
and display these parameters on the corresponding instruments, while giving correct alarms and
protection system actions.
4.2.5.2 Steady-state operation
The simulator shall accurately simulate the steady-state response of the reference unit within
the operating range where the reference unit data can be obtained.
4.2.6 Malfunctions
4.2.6.1 Reference materials
As part of the procedures for systematic approach to training, the type and number of simulated
failures shall be determined when designing a performance-based operator training and
retraining program. The following reference materials should be used in the selection process.
4.2.6.2 Range
The specific fault capabilities required on the simulator shall meet the relevant requirements of
the reference unit licensed operator training and retraining program. The simulator shall include
the following failures.
4.3 Simulation range
4.3.1 Physical fidelity and human factors
4.3.1.1 Panel
The simulator shall include various panels, consoles, and operating stations in the main control
room and auxiliary control room to provide the control, instrumentation, alarms, and other
human-machine interfaces necessary for the varying duty operating conditions specified in
5 Test Requirements
5.1 Overview
The following verification, confirmation and performance test criteria are formulated to ensure
that there are no noticeable differences BETWEEN the simulator control room and simulated
systems AND the reference unit control room and systems. 5.2~5.5 specify the assessment
requirements for the main performance of the simulator.
5.2 Simulator capability criteria
5.2.5 Normal operation
5.2.5.1 Overview
It shall be verified that the change procedures of the reference unit listed in 4.2.5 can be
simulated continuously without changing the mathematical model.
5.2.5.2 Steady-state operation
5.2.7 Severe accidents
During the simulation of the severe accidents described in 4.2.7, the simulator shall meet the
following criteria.
5.3 Simulation range
5.3.1 Physical fidelity and human factors
5.3.1.1 Panels
It shall be verified that the size, shape, color and layout of the control panels, consoles and
operator stations simulated in accordance with 4.3.1.1 are replicated according to the reference
unit. It shall be verified that noticeable differences have been eliminated; or a training needs
assessment has been implemented in accordance with the method provided in 5.3.1.4.
5.3.1.3 Control room environment
It shall be verified that the simulator control room replicates the reference unit control room in
accordance with the requirements of 4.3.1.3.It shall be verified that noticeable differences have
been eliminated or a training needs assessment has been carried out in accordance with the
method provided in 5.3.1.4.
5.3.1.4 Differences assessment
A training needs assessment shall be conducted for each identified difference or noticeable
difference. If it does not affect the operator's operation or distract the training attention, the
difference and noticeable difference are acceptable.
6 Configuration and Management of the Simulator
6.1 Overview
A simulator configuration and management system shall be established to provide methods for
verifying simulator performance and confirming compliance with Clause 4.The simulator
configuration and management system shall include.
6.2 Simulator design baseline
6.2.1 General requirements
The simulator design baseline consists of the current simulator design data, hardware
configuration, and software configuration. The simulator design baseline includes the following.
6.2.2 Utilization of baseline data
The baseline data comes from a variety of sources. To ensure the fidelity of the simulator, the
use of this data shall follow the following priority order.
6.4 Simulator changes
6.4.1 Overview
Simulator changes are divided into the following two categories.
a) Changes based on reference unit modifications;
b) Changes based on the latest unit performance data, trainee feedback, event reports,
experience feedback, and simulator performance test results.
Based on the training needs assessment, both of the above changes can be made before the
actual modification of the reference unit, such as control panel modification and new fuel
loading.
6.4.2 Simulator changes based on reference unit modifications
6.4.2.1 Overview
In the cases of 5.4.2.2 and 5.4.2.3, the simulator configuration shall be upgraded to maintain
consistency with the reference unit.
6.5 Configuration management of software and hardware
The configuration of software and hardware used for operator training and examination shall
be managed in accordance with the requirements of 5.5.
NB/T 20015-2021
NB
ENERGY INDUSTRY STANDARD
ICS 27.120.10
CCS F 83
Replacing NB/T 20015-2010
Nuclear Power Plant Simulators for Use in Operator
Training and Examination
Issued on. APRIL 26, 2021
Implemented on. JULY 26, 2021
Issued by. National Energy Administration
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative References... 5
3 Terms and Definitions... 5
4 General... 9
5 Test Requirements... 19
6 Configuration and Management of the Simulator... 28
Appendix A (Informative) Application Example of Steady-State Allowable Error of
Simulator... 31
Appendix B (Normative) Guidelines for the Implementation of Simulator Operability
Tests... 32
Appendix C (Informative) Guidelines for the Preparation of Simulator Design and Test
Documents... 38
Bibliography... 42
1 Scope
This Document specifies the functional requirements of the full range simulator of the control
room of a pressurized water reactor nuclear power plant (hereinafter referred to as the simulator)
used for operator training and examination, as well as the simulation range, performance and
functional criteria of the simulator.
This Document is applicable to the simulator of a pressurized water reactor nuclear power plant,
and can also be used as a reference for simulators of non-pressurized water reactor nuclear
power plants and other nuclear facilities.
2 Normative References
There are no normative references in this Document.
3 Terms and Definitions
For the purposes of this Document, the following terms and definitions apply.
3.1 Reference unit
Determine the specific nuclear power plant unit on which the simulator control room
configuration, system control settings and design database are based.
3.1 Simulation
Use modeling techniques in a simulator development environment to replicate the systems or
subsystems of the reference unit.
3.3 Stimulation
The simulator uses the actual hardware and software of the reference unit's system or subsystem
to replicate the corresponding system or subsystem of the reference unit.
3.4 Emulation
Specifically refers to replicating the system or subsystem of the reference unit by moving the
software of the system or subsystem of the reference unit to the simulator operating
environment (the hardware platform can be a simulation host or an independent computer).
3.5 Visually simulated hardware
Hardware that provides only realistic appearance and visual guidance on the simulator control
panel, but has no interface with the dynamic simulation model.
4 General
4.1 Overview
Nuclear power plant simulators used for initial training, retraining and examination of operators
shall use a specific unit as the reference unit. The simulation range shall enable operators to
take the same operation through the operating procedures of the reference unit to handle a
certain change process on the simulator as the operation taken on the reference unit. The
simulation range shall allow all the change processes specified in this Clause to be handled until
a stable operating condition is obtained.
4.2 Capabilities of the simulator
4.2.1 General requirements
The simulator response caused by the operator's operation, no operator operation, improper
operator operation and the reference unit automatic control and inherent characteristics shall be
realistic; it shall not violate the natural physical laws such as mass, motion and energy
conservation; and shall comply with the provisions of the verification, confirmation and
performance test criteria specified in Clause 5.
4.2.5 Normal operation
4.2.5.1 Overview
The simulator shall be able to continuously simulate the change procedures of the reference
units listed in 4.2.5.2 and 4.2.5.3 without changing the mathematical model or initial conditions.
The simulator shall be able to calculate the system parameters of different operating conditions
and display these parameters on the corresponding instruments, while giving correct alarms and
protection system actions.
4.2.5.2 Steady-state operation
The simulator shall accurately simulate the steady-state response of the reference unit within
the operating range where the reference unit data can be obtained.
4.2.6 Malfunctions
4.2.6.1 Reference materials
As part of the procedures for systematic approach to training, the type and number of simulated
failures shall be determined when designing a performance-based operator training and
retraining program. The following reference materials should be used in the selection process.
4.2.6.2 Range
The specific fault capabilities required on the simulator shall meet the relevant requirements of
the reference unit licensed operator training and retraining program. The simulator shall include
the following failures.
4.3 Simulation range
4.3.1 Physical fidelity and human factors
4.3.1.1 Panel
The simulator shall include various panels, consoles, and operating stations in the main control
room and auxiliary control room to provide the control, instrumentation, alarms, and other
human-machine interfaces necessary for the varying duty operating conditions specified in
5 Test Requirements
5.1 Overview
The following verification, confirmation and performance test criteria are formulated to ensure
that there are no noticeable differences BETWEEN the simulator control room and simulated
systems AND the reference unit control room and systems. 5.2~5.5 specify the assessment
requirements for the main performance of the simulator.
5.2 Simulator capability criteria
5.2.5 Normal operation
5.2.5.1 Overview
It shall be verified that the change procedures of the reference unit listed in 4.2.5 can be
simulated continuously without changing the mathematical model.
5.2.5.2 Steady-state operation
5.2.7 Severe accidents
During the simulation of the severe accidents described in 4.2.7, the simulator shall meet the
following criteria.
5.3 Simulation range
5.3.1 Physical fidelity and human factors
5.3.1.1 Panels
It shall be verified that the size, shape, color and layout of the control panels, consoles and
operator stations simulated in accordance with 4.3.1.1 are replicated according to the reference
unit. It shall be verified that noticeable differences have been eliminated; or a training needs
assessment has been implemented in accordance with the method provided in 5.3.1.4.
5.3.1.3 Control room environment
It shall be verified that the simulator control room replicates the reference unit control room in
accordance with the requirements of 4.3.1.3.It shall be verified that noticeable differences have
been eliminated or a training needs assessment has been carried out in accordance with the
method provided in 5.3.1.4.
5.3.1.4 Differences assessment
A training needs assessment shall be conducted for each identified difference or noticeable
difference. If it does not affect the operator's operation or distract the training attention, the
difference and noticeable difference are acceptable.
6 Configuration and Management of the Simulator
6.1 Overview
A simulator configuration and management system shall be established to provide methods for
verifying simulator performance and confirming compliance with Clause 4.The simulator
configuration and management system shall include.
6.2 Simulator design baseline
6.2.1 General requirements
The simulator design baseline consists of the current simulator design data, hardware
configuration, and software configuration. The simulator design baseline includes the following.
6.2.2 Utilization of baseline data
The baseline data comes from a variety of sources. To ensure the fidelity of the simulator, the
use of this data shall follow the following priority order.
6.4 Simulator changes
6.4.1 Overview
Simulator changes are divided into the following two categories.
a) Changes based on reference unit modifications;
b) Changes based on the latest unit performance data, trainee feedback, event reports,
experience feedback, and simulator performance test results.
Based on the training needs assessment, both of the above changes can be made before the
actual modification of the reference unit, such as control panel modification and new fuel
loading.
6.4.2 Simulator changes based on reference unit modifications
6.4.2.1 Overview
In the cases of 5.4.2.2 and 5.4.2.3, the simulator configuration shall be upgraded to maintain
consistency with the reference unit.
6.5 Configuration management of software and hardware
The configuration of software and hardware used for operator training and examination shall
be managed in accordance with the requirements of 5.5.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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