CN115898563A - Method and system for generating tripping signal of steam turbine of nuclear power plant - Google Patents
Method and system for generating tripping signal of steam turbine of nuclear power plant Download PDFInfo
- Publication number
- CN115898563A CN115898563A CN202211103278.2A CN202211103278A CN115898563A CN 115898563 A CN115898563 A CN 115898563A CN 202211103278 A CN202211103278 A CN 202211103278A CN 115898563 A CN115898563 A CN 115898563A
- Authority
- CN
- China
- Prior art keywords
- logic
- steam turbine
- turbine
- tripping
- signals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 15
- 239000000470 constituent Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 230000014509 gene expression Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
Abstract
The invention discloses a method and a system for generating a tripping signal of a steam turbine in a nuclear power plant, wherein the method comprises the steps of constructing two logic sequences on the side of a security level instrument control system, generating four paths of tripping signals of the steam turbine by the two logic sequences, sending the four paths of tripping signals to a steam turbine protection system, carrying out two-out-of-four logic voting, and outputting a tripping driving signal of the steam turbine; and the logic processing units of the two logic sequences are respectively arranged in different cabinets. The invention adopts two logic sequences to output four paths of turbine tripping signals to the side of the turbine protection system for four-out-of-two logic voting, then real turbine tripping driving signals are produced, and a plurality of logic processing units with different sequences are placed in different cabinets, thereby reducing the probability of false generation of the turbine tripping signals or the rejection of the turbine tripping function caused by accidental power failure or equipment failure possibly occurring in a single cabinet, and further improving the reliability of the turbine tripping function.
Description
Technical Field
The invention relates to the technical field of nuclear power plant instruments and control, in particular to a method and a system for generating a tripping signal of a steam turbine of a nuclear power plant.
Background
The trip function of the steam turbine is the content of important attention of a power plant, and the structural design of a driving instruction of the trip function is directly related to the safety and the availability of the power plant. In accident conditions, if the turbine cannot trip in time as required by the reactor protection system, it may cause core overcooling thereby increasing reactivity and further threatening plant safety. While an accidental turbine trip occurs below a certain reactor power level, this will result in a rapid reactor power drop (when the bypass system is available) and in severe cases will directly trigger a reactor scram (when the bypass system is not available).
At present, the existing nuclear power plant turbine tripping command generating units are all arranged in the same cabinet, however, the problems that the turbine tripping signal is mistakenly generated or the tripping function of the turbine is refused and the like can be caused by the accidental power failure or equipment failure possibly occurring in a single cabinet.
Disclosure of Invention
Therefore, in order to improve the reliability of the tripping function of the steam turbine and reduce the probability of operation failure and misoperation as much as possible, the invention provides a method for generating a tripping signal of the steam turbine in a nuclear power plant. The invention adopts two logic sequences to output four paths of steam turbine trip signals to the side of the steam turbine protection system for carrying out two-out-of-four logic voting, and then real steam turbine trip driving signals are produced, and the plurality of logic processing units of each logic sequence are positioned in different cabinets, so that the steam turbine trip signals cannot be triggered by mistake due to external power failure or equipment failure possibly occurring in a single cabinet, the steam turbine trip function triggered by any signal cannot be refused, the reliability of the steam turbine trip function is improved, and the safety and the economy of a nuclear power plant are ensured.
The invention is realized by the following technical scheme:
a nuclear power plant steam turbine trip signal generation method is applied to a safety instrument control system side and comprises the following steps:
two logic sequences are constructed, four paths of turbine tripping signals are generated by the two logic sequences in common and are sent to a turbine protection system for logical voting of two out of four, and then turbine tripping driving signals are output;
and the logic processing units of the two logic sequences are respectively arranged in different cabinets.
In a preferred embodiment, each logic sequence of the invention is formed by combining different logic processing units to output two paths of turbine tripping signals.
In each logic sequence, the P14 signal generated by the subgroup 1 and the shutdown or special setting signal generated by the subgroup 2 are subjected to two-to-one logical voting, and then a first path of turbine trip signal is output;
and (3) carrying out two-to-one logic voting on the P14 signal generated by the subgroup 1 and the shutdown or special signal generated by the subgroup 1, and then outputting a second path of turbine trip signal.
In a second aspect, the invention provides a method for generating a trip signal of a steam turbine in a nuclear power plant, which is applied to a steam turbine protection system side and comprises the following steps:
acquiring four paths of tripping signals of the steam turbine output by two logic sequences of a safety level instrument control system;
and carrying out two-out-of-four logic voting on the four-path turbine tripping signals and then outputting real turbine tripping driving signals.
In a third aspect, the invention provides a method for generating a trip signal of a steam turbine in a nuclear power plant, which is realized based on a safety instrument control system and a steam turbine protection system, and comprises the following steps:
outputting four paths of turbine tripping signals to a turbine protection system through two logic sequences of the safety level instrument control system;
and the four-path turbine tripping signal carries out two-out-of-four logic voting on the side of the turbine protection system and then outputs a real turbine tripping driving signal.
In a fourth aspect, the invention provides a nuclear power plant steam turbine trip signal generation system, which comprises a safety level instrument control system;
the safety level instrument control system comprises two logic sequences, wherein logic processing units of the two logic sequences are arranged in different cabinets, and the two logic sequences output four paths of steam turbine tripping signals to a steam turbine protection system to generate steam turbine tripping driving signals after four-out-of-two logic voting.
In a preferred embodiment, each logic sequence of the invention is formed by combining and outputting two paths of turbine trip signals by different logic processing units.
As a preferred embodiment, each of the logic sequences of the present invention includes two logic processing units;
one logic processing unit is used for carrying out two-to-one logic voting on the P14 signal generated by the subgroup 1 and the shutdown or special signal generated by the subgroup 2 and then outputting a first path of turbine trip signal; and the other logic processing unit is used for carrying out two-out-of-one logic voting on the P14 signal generated by the subgroup 1 and the shutdown signal or the special equipment generated by the subgroup 1 and then outputting a second path of turbine trip signal.
In a fifth aspect, the invention provides a trip signal generation system for a steam turbine of a nuclear power plant, which comprises a steam turbine protection system;
the steam turbine protection system comprises a two-out-of-four logic unit;
and the two-out-of-four logic unit carries out two-out-of-four logic voting on four paths of turbine tripping signals output from the two logic sequences of the safety level instrument control system, and then generates turbine tripping driving signals.
In a sixth aspect, the invention provides a nuclear power plant steam turbine trip signal generation system, which comprises a safety level instrument control system and a steam turbine protection system;
the safety level instrument control system comprises two logic sequences, logic processing units of the two logic sequences are arranged in different cabinets, and the two logic sequences output four paths of tripping signals of the steam turbine to the steam turbine protection system;
and the steam turbine protection system carries out two-out-of-four logic voting on the four-way steam turbine tripping signals to generate steam turbine tripping driving signals.
The invention has the following advantages and beneficial effects:
the invention adopts two logic sequences to output four paths of turbine tripping signals to the side of the turbine protection system for carrying out two-out-of-four logic voting, and then real turbine tripping driving signals are produced, and a plurality of logic processing units with different sequences are placed in different cabinets, thereby reducing the probability of false generation of the turbine tripping signals or the rejection of the turbine tripping function caused by accidental power failure or equipment failure possibly occurring in a single cabinet, and further improving the reliability of the turbine tripping function.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic diagram of a steam turbine trip signal generation process on a safety level instrumentation and control system side according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the steam turbine trip signal generation logic on the safety instrumented side of an embodiment of the present invention.
Fig. 3 is a schematic diagram of a steam turbine trip signal generation process at the side of the steam turbine protection system according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a steam turbine trip signal generation process according to an embodiment of the present invention.
Fig. 5 is a schematic block diagram of a steam turbine trip signal generation system according to an embodiment of the present invention.
Detailed Description
Hereinafter, the term "comprising" or "may include" used in various embodiments of the present invention indicates the presence of the invented function, operation or element, and does not limit the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the invention, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B, or may include both a and B.
Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.
It should be noted that: if it is described that one constituent element is "connected" to another constituent element, the first constituent element may be directly connected to the second constituent element, and a third constituent element may be "connected" between the first constituent element and the second constituent element. In contrast, when one constituent element is "directly connected" to another constituent element, it is understood that there is no third constituent element between the first constituent element and the second constituent element.
The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
In order to improve the reliability of the turbine trip function and reduce the probability of operation rejection and misoperation as much as possible, in the design of the turbine trip signal of the safety instrument control system, the embodiment provides a method for generating the turbine trip signal of the nuclear power plant for each turbine trip function.
Specifically, as shown in fig. 1, the method for generating a trip signal of a steam turbine according to this embodiment is applied to a safety level instrumentation and control system, and specifically includes the following steps:
and S10, constructing two logic sequences, generating four-path turbine tripping signals, sending the four-path turbine tripping signals to a turbine protection system, performing two-out-of-four logic voting, and outputting real turbine tripping driving signals. And the two logic sequences are respectively arranged in different cabinets.
In each logic sequence, two paths of turbine tripping signals are output by different driving logic processing units in a combined mode, therefore, two logic sequences output four paths of turbine tripping signals in total, the four paths of turbine tripping signals generate real turbine tripping instructions after four-out-of-two logic voting is carried out on the side of a turbine protection system, and the driving logic processing units of the two logic sequences are arranged in different cabinets respectively. Because the plurality of logic processing units of each sequence are positioned in different cabinets, the steam turbine trip signal cannot be generated by mistake due to the accidental power failure or equipment failure of a single cabinet, and the steam turbine trip function cannot be rejected, so that the safety of a power plant is ensured.
According to the diversity grouping design requirements, the turbine trip function needs to be realized in two diversity subgroups of the reactor protection system, and is triggered by a steam generator water level 2 (P14 signal), a shutdown signal or a safety injection signal. Where the P14 signal is implemented only in diversity subgroup 1, the shutdown or exclusive signal needs to be implemented in both subgroup 1 and subgroup 2. As shown in fig. 2, the steam turbine trip signal generation module of this embodiment includes a logic sequence a and a logic sequence B, wherein, in each logic sequence, the P14 signal generated by the subgroup 1 and the shutdown or special setting signal generated by the subgroup 2 are subjected to two-out-of-one logic voting, and then the first steam turbine trip signal is output, and the P14 signal generated by the subgroup 1 and the shutdown or special setting signal generated by the subgroup 1 are subjected to two-out-of-one logic voting, and then the second steam turbine trip signal is output. And the logic sequence A and the logic sequence B jointly generate four paths of turbine tripping signals, and then the real turbine tripping driving signals are generated after four-out-of-two logic voting.
Further, as shown in fig. 3, the method for generating the trip signal of the steam turbine according to the embodiment is applied to a steam turbine protection system side, and specifically includes the following steps:
s20, acquiring four paths of tripping signals of the steam turbine output by two logic sequences of the safety level instrument control system; the plurality of driving logic processing units of the two logic sequences are respectively arranged in different cabinets.
And S21, carrying out four-out-of-two logic voting on the four-way turbine tripping signal and outputting a real turbine tripping driving signal.
Further, as shown in fig. 4, the method for generating the trip signal of the steam turbine according to the embodiment is implemented based on a safety level instrumentation and control system and a steam turbine protection system, and specifically includes the following steps:
s30, outputting four paths of turbine tripping signals to a turbine protection system through two logic sequences of the safety level instrument control system;
and S31, carrying out two-out-of-four logic voting on the four-way turbine trip signal on the side of the turbine protection system, and outputting a real turbine trip driving signal.
Example 2
The embodiment provides a trip signal generating system for a steam turbine of a nuclear power plant, which comprises a safety level instrument control system and/or a steam turbine protection system as shown in fig. 5.
The safety level instrument control system comprises two logic sequences (a logic sequence A and a logic sequence B), wherein the two logic sequences are respectively arranged in different cabinets, and the two logic sequences output four paths of tripping signals of the steam turbine to the steam turbine protection system. Wherein, each logic sequence is combined by different driving logic processing units to output two paths of turbine tripping signals, and the two logic sequences output four paths of turbine tripping signals in total.
The steam turbine protection system comprises a two-out-of-four logic unit, and after the two-out-of-four logic unit carries out two-out-of-four logic voting on four-way steam turbine tripping signals output from two logic sequences of a safety level instrument control system, real steam turbine tripping driving signals are output.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A nuclear power plant steam turbine trip signal generation method is characterized by being applied to a safety instrument control system side and comprising the following steps:
two logic sequences are constructed, four paths of turbine tripping signals are generated by the two logic sequences in total and are sent to a turbine protection system to be subjected to two-out-of-four logic voting, and then turbine tripping driving signals are output;
the logic processing units of the two logic sequences are respectively arranged in different cabinets.
2. The method for generating the trip signal of the steam turbine of the nuclear power plant according to claim 1, wherein each logic sequence is combined by different logic processing units to output two paths of trip signals of the steam turbine.
3. The method for generating the trip signal of the steam turbine of the nuclear power plant according to claim 1, wherein in each logic sequence, the P14 signal generated by the subgroup 1 and the shutdown or special signal generated by the subgroup 2 are subjected to two-out-of-one logic voting, and then a first path of trip signal of the steam turbine is output;
and (3) carrying out two-to-one logic voting on the P14 signal generated by the subgroup 1 and the shutdown or special signal generated by the subgroup 1, and then outputting a second path of turbine trip signal.
4. A method for generating a trip signal of a steam turbine of a nuclear power plant is applied to a steam turbine protection system side and comprises the following steps:
acquiring four paths of tripping signals of the steam turbine output by two logic sequences of a safety level instrument control system;
and carrying out two-out-of-four logic voting on the four-path turbine tripping signals and then outputting real turbine tripping driving signals.
5. A nuclear power plant steam turbine trip signal generation method is characterized in that the method is realized based on a safety level instrument control system and a steam turbine protection system, and comprises the following steps:
outputting four paths of turbine tripping signals to a turbine protection system through two logic sequences of the safety level instrument control system;
and the four paths of turbine tripping signals are subjected to two-out-of-four logic voting at the side of the turbine protection system, and then real turbine tripping driving signals are output.
6. A tripping signal generating system of a steam turbine in a nuclear power plant is characterized by comprising a safety instrument control system;
the safety level instrument control system comprises two logic sequences, wherein logic processing units of the two logic sequences are arranged in different cabinets, and the two logic sequences output four paths of steam turbine tripping signals to a steam turbine protection system to generate steam turbine tripping driving signals after four-out-of-two logic voting.
7. The nuclear power plant turbine trip signal generation system of claim 6, wherein each logic sequence is configured to output two turbine trip signals from different combinations of logic processing units.
8. The nuclear power plant steam turbine trip signal generating system of claim 6, wherein each of said logic sequences includes two logic processing units;
one logic processing unit is used for carrying out two-to-one logic voting on the P14 signal generated by the subgroup 1 and the shutdown or special signal generated by the subgroup 2 and then outputting a first path of turbine tripping signal; and the other logic processing unit is used for carrying out two-to-one logic voting on the P14 signal generated by the subgroup 1 and the shutdown or special setting signal generated by the subgroup 1 and then outputting a second path of turbine trip signal.
9. A trip signal generation system for a steam turbine of a nuclear power plant is characterized by comprising a steam turbine protection system;
the steam turbine protection system comprises a two-out-of-four logic unit;
and the two-out-of-four logic unit carries out two-out-of-four logic voting on four paths of turbine tripping signals output from the two logic sequences of the safety level instrument control system, and then generates turbine tripping driving signals.
10. A trip signal generation system of a steam turbine of a nuclear power plant is characterized by comprising a safety instrument control system and a steam turbine protection system;
the safety level instrument control system comprises two logic sequences, logic processing units of the two logic sequences are arranged in different cabinets, and the two logic sequences output four paths of tripping signals of the steam turbine to the steam turbine protection system;
and the steam turbine protection system carries out two-out-of-four logic voting on the four-way steam turbine tripping signals to generate steam turbine tripping driving signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211103278.2A CN115898563A (en) | 2022-09-09 | 2022-09-09 | Method and system for generating tripping signal of steam turbine of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211103278.2A CN115898563A (en) | 2022-09-09 | 2022-09-09 | Method and system for generating tripping signal of steam turbine of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115898563A true CN115898563A (en) | 2023-04-04 |
Family
ID=86490152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211103278.2A Pending CN115898563A (en) | 2022-09-09 | 2022-09-09 | Method and system for generating tripping signal of steam turbine of nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115898563A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5910708A (en) * | 1982-06-18 | 1984-01-20 | ゼネラル・エレクトリツク・カンパニイ | Controller for speed of turbine |
| CN102737736A (en) * | 2012-05-25 | 2012-10-17 | 中国核动力研究设计院 | Reactor circuit breaker screen and scram control method thereof |
| GB201601227D0 (en) * | 2015-11-12 | 2016-03-09 | China Nuclear Power Engineering Co Ltd And China Guangdong Nuclear Power Holding Corp | Diverse actuation system and method and diverse protection system in a nuclear power plant |
| CN105575448A (en) * | 2015-12-15 | 2016-05-11 | 中广核工程有限公司 | Nuclear power station reactor protection system and safety control method therein |
| CN106782719A (en) * | 2017-01-04 | 2017-05-31 | 中广核研究院有限公司 | Presurized water reactor power generator turbine has tripped sign signal generating method |
| US20180190395A1 (en) * | 2016-12-30 | 2018-07-05 | Nuscale Power, Llc | Nuclear Reactor Protection Systems and Methods |
| CN214465213U (en) * | 2021-02-08 | 2021-10-22 | 宁夏枣泉发电有限责任公司 | Arrangement structure of blocking solenoid valve of oil pressure control module |
-
2022
- 2022-09-09 CN CN202211103278.2A patent/CN115898563A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5910708A (en) * | 1982-06-18 | 1984-01-20 | ゼネラル・エレクトリツク・カンパニイ | Controller for speed of turbine |
| CN102737736A (en) * | 2012-05-25 | 2012-10-17 | 中国核动力研究设计院 | Reactor circuit breaker screen and scram control method thereof |
| GB201601227D0 (en) * | 2015-11-12 | 2016-03-09 | China Nuclear Power Engineering Co Ltd And China Guangdong Nuclear Power Holding Corp | Diverse actuation system and method and diverse protection system in a nuclear power plant |
| CN105575448A (en) * | 2015-12-15 | 2016-05-11 | 中广核工程有限公司 | Nuclear power station reactor protection system and safety control method therein |
| US20180190395A1 (en) * | 2016-12-30 | 2018-07-05 | Nuscale Power, Llc | Nuclear Reactor Protection Systems and Methods |
| CN106782719A (en) * | 2017-01-04 | 2017-05-31 | 中广核研究院有限公司 | Presurized water reactor power generator turbine has tripped sign signal generating method |
| CN214465213U (en) * | 2021-02-08 | 2021-10-22 | 宁夏枣泉发电有限责任公司 | Arrangement structure of blocking solenoid valve of oil pressure control module |
Non-Patent Citations (2)
| Title |
|---|
| 刘宏春等: "岭澳二期核电站数字化反应堆保护系统", 核动力工程, vol. 29, no. 1, 29 February 2008 (2008-02-29), pages 1 - 9 * |
| 魏海峰: "核电站反应堆保护系统研究", 中国优秀博士论文全文数据库工程科技Ⅱ辑, no. 2013, 15 December 2013 (2013-12-15), pages 1 - 43 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8675805B2 (en) | Automated periodic surveillance testing method and apparatus in digital reactor protection system | |
| CN100555235C (en) | The N-modular redundancy voting system | |
| CN110428919B (en) | Method for designing reactivity control strategy of pressurized water reactor nuclear power plant based on symptoms | |
| KR101801034B1 (en) | Analysis Method for Fire Induced Multiple Spurious Operation of Systems and Equipment in Nuclear Power Plant | |
| CN110415850B (en) | Design method for reducing misoperation rate of reactor protection system | |
| KR20150039508A (en) | Watchdog apparatus and method thereof | |
| CN115898563A (en) | Method and system for generating tripping signal of steam turbine of nuclear power plant | |
| KR101268479B1 (en) | Fast Calculation Method of Importance Measures for Minimizing Large Memory Requirements In the Fault Tree Analysis | |
| Xi et al. | An automation test strategy based on real platform for digital control system software in nuclear power plant | |
| KR20100093414A (en) | Plant protection system using integration of bistable and coincidence logic | |
| Li et al. | Fault detection and identification in Petri net controllers | |
| Wagner et al. | Artchitecture for interlock systems: Reliability analysis with regard to safety and availability | |
| CN108918954B (en) | Method and system for processing intermediate range signal of nuclear instrument measurement system | |
| Shi et al. | The design of ACPR1000 nuclear reactor protection system based on FirmSys | |
| Gonzalez et al. | Development of the optical multiplexer board prototype for data acquisition in the TileCal system | |
| Butorina | Self-testing checker design for incomplete m-out-of-n codes | |
| Butorina et al. | Implementation by the special formula of an arbitrary subset of code words of (m, n)-code for designing a self-testing checker | |
| RU2474868C1 (en) | Modular computer system | |
| Keats | Fail-safe design criteria for computer-based reactor protection systems | |
| Butorina et al. | Evaluation of code-word subsets to ensure the self-testing property of a checker | |
| JPS62280690A (en) | Nuclear reactor emergency stop device | |
| CN115509181A (en) | Safety control method, system and device for multiple voting fault-tolerant structure | |
| Ibrahim et al. | Instrumentation and controls architectures in new NPPs | |
| US11132483B2 (en) | Method and arrangement for forming an electronic circuit | |
| Nithya et al. | Very large scale integrated solution for stuck at faults in synchronous sequential circuits |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |