WO2016063374A1 - 遠隔統合監視操作システム - Google Patents
遠隔統合監視操作システム Download PDFInfo
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- WO2016063374A1 WO2016063374A1 PCT/JP2014/078070 JP2014078070W WO2016063374A1 WO 2016063374 A1 WO2016063374 A1 WO 2016063374A1 JP 2014078070 W JP2014078070 W JP 2014078070W WO 2016063374 A1 WO2016063374 A1 WO 2016063374A1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
- G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
- G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
- G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
- G05B23/0229—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions knowledge based, e.g. expert systems; genetic algorithms
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0267—Fault communication, e.g. human machine interface [HMI]
- G05B23/0272—Presentation of monitored results, e.g. selection of status reports to be displayed; Filtering information to the user
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/001—Computer implemented control
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/04—Safety arrangements
- G21D3/06—Safety arrangements responsive to faults within the plant
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/16—Plc to applications
- G05B2219/161—Nuclear plant
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24086—Expert system, guidance operator, locate fault and indicate how to repair
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- 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
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- 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
- Y02E30/30—Nuclear fission reactors
Definitions
- This invention relates to a remote integrated monitoring operation system.
- the nuclear power plant has a central control room for each nuclear power unit from the viewpoint of constructing multiple nuclear power units in the same area due to the problem of attracting places and ensuring the independence of each nuclear power unit.
- Patent Document 1 For example, a system as described in Patent Document 1 has been proposed as an operation management system that collects a plurality of distributed plant data in one place and collectively manages these plants.
- This invention includes all the priority monitoring operations of the nuclear unit in which an accident has occurred, depending on the urgent level of the nuclear unit in which an event or accident occurred and the priority based on the impact on other nuclear units in an emergency.
- An object is to provide a remote integrated monitoring operation system capable of performing an integrated monitoring operation of a nuclear unit.
- the remote integrated monitoring and operating system includes: In a remote integrated monitoring operation system for monitoring and operating a plurality of plant units of a plant via a network,
- the remote integrated monitoring operation system includes: A unit integrated database for sequentially recording, as one record, the name of the plant unit, a parameter indicating an event that has occurred in the plant unit, the state of the parameter, and the alarm classification indicated by the parameter and the state; For each combination of the parameter and the state, an inter-unit impact evaluation database that records the effect of the event corresponding to the combination on the other plant units;
- In the priority reference table for recording the response procedure of the event corresponding to the combination of the parameter and the state generated in the plant unit whose priority for restoration is priority 1, and in the plant units other than priority 1
- a recovery correspondence guidance database having a general reference table for recording a correspondence procedure of the event corresponding to the combination of the generated parameter and the state; From the alarm classification of the unit integrated database, unit-by-unit emergency level determination unit for determining the emergency level of each plant unit, An inter-unit influence determination
- the remote integrated monitoring operation system In the event of an emergency, all nuclear power, including priority monitoring operations of the nuclear unit where the accident occurred, depending on the priority of the event, the nuclear unit (plant unit) where the accident occurred and the priority based on the impact on other nuclear units Unit integrated monitoring operation can be performed.
- FIG. 1 is a block diagram showing a system configuration of a remote integrated monitoring operation system 100 (hereinafter simply referred to as system 100) according to Embodiment 1 of the present invention.
- system 100 is installed in units of 20 nuclear power plants to be monitored and operated.
- the plant data of each of the nuclear power units 20a to 20c (3 used in this embodiment) is transferred to the remote monitoring operation network 5 (hereinafter referred to as network). 5), the individual information of the nuclear units 20a to 20c is integrated and managed, and the plant equipment 20a1 to 20c1 of each nuclear unit 20a to 20c can be operated.
- the system 100 is a system installed outside a nuclear power plant that is a monitoring operation target.
- the nuclear units 20a to 20c refer to one nuclear reactor such as Unit 1 and Unit 2 and peripheral equipment (including turbines and generators). (Corresponding to the claimed plant) is a generic term for a plurality of nuclear units 20a to 20c installed in the same area.
- the nuclear unit 20x used below refers to any one of the nuclear units 20a to 20c.
- the system 100 includes a plant emergency monitoring operation facility 10 (hereinafter referred to as facility 10), a plant integrated monitoring operation facility 40 (hereinafter referred to as facility 40), and a remote integrated monitoring operation system network 4 (hereinafter referred to as network 4). And a data transmission facility 6 connecting the system 100 and the network 5.
- facility 10 a plant emergency monitoring operation facility 10
- facility 40 a plant integrated monitoring operation facility 40
- network 4 a remote integrated monitoring operation system network 4
- the nuclear power units 20a to 20c to be monitored are composed of a data transmission facility 6 for connection to a network, plant equipment 20a1 to 20c1 centering on a nuclear reactor, control devices 20a2 to 20c2 for controlling the plant equipment, A central control panel 23 for operating the control devices 20a2 to 20c2 is provided. Note that when the nuclear power unit 20a is being monitored by the system 100, the central control panel 23 is not used.
- the first feature of the system 100 is that all nuclear units 20a to 20c are integrated and managed when an event or accident occurs in a certain nuclear unit 20x (accident is a serious event). Utilizing it, comprehensively evaluating the plant data of each of the nuclear units 20a to 20c, and presenting recovery response guidance for the nuclear plant 20 as a whole.
- FIG. 2 is a block diagram showing the configuration of the facility 10.
- FIG. 3 is a block diagram showing the relationship between the databases used by the facility 10.
- FIG. 4 is a diagram showing a record configuration of the unit integrated database DB1.
- FIG. 5 is a diagram showing a record configuration of the inter-unit influence evaluation database DB2.
- FIG. 6 is a diagram illustrating a record configuration of the priority determination database.
- the facility 10 includes a unit-by-unit emergency determination unit 11, an inter-unit influence determination unit 12, and a recovery response guidance determination unit 14.
- the determination logic to be described later provided in each of these units for example, the urgency of the measures for the event, the accident, the event, and the accident occurred in the nuclear unit 20a in the nuclear plant 20, the other nuclear unit 20b in the nuclear plant 20,
- the influence on 20c is evaluated, the priority of response of each of the nuclear units 20a to 20c is determined, and the recovery operation procedure for each of the nuclear units 20a to 20c is instructed.
- the DB 1 is a database that records alarms transmitted from the nuclear units 20a to 20c, transmitted operation signals, stopped operation signals, and the like as one record each time transmission and stop are performed.
- the item “unit name” records the number of the nuclear unit 20x where the event or accident occurred.
- the state of the parameter is recorded, such as an alarm is transmitted, an operation signal is transmitted, or the event is stopped for the event or accident.
- the item “alarm classification” the type of alarm or the like indicated by the combination of “parameter” and “state” is recorded. For example, when the parameter indicating the temperature abnormality of the No. 3 seawater pump of the nuclear power unit 20a is in the transmission state, a record with the alarm classification “alarm regarding safety function” is recorded.
- the “Status” item is “Outgoing”, it means that a state that should not be sent is occurring, and “Stop” means that something that should not be stopped is stopped. Means a state, both of which are not preferred.
- the inter-unit impact evaluation DB 2 (hereinafter simply referred to as DB 2) shown in FIG. 5 is used to evaluate the possibility of affecting the other two nuclear units when an event or accident occurs in the nuclear unit 20 x.
- the database to use.
- information that identifies events that need to be dealt with by the nuclear power units 20a to 20c, equipment that may cause an accident, parts, and the like is recorded in advance, and this is recorded in the “parameter” of DB1. It is an item to be associated.
- the item “state” is an item indicating the state of the parameter, and this item is also an item associated with the “state” of DB1.
- the effect on the other two nuclear units due to an event or accident corresponding to the combination of “parameter” and “state” occurring in the nuclear unit 20 is recorded.
- the priority determination DB 3 (hereinafter simply referred to as DB 3) shown in FIG. 6 is configured to identify events and accidents occurring in each of the nuclear units 20 a to 20 c from the data recorded in the DB 1 and the data recorded in the DB 2. It is a database for tabulating by the below-mentioned index.
- DB 3 The priority determination DB 3 (hereinafter simply referred to as DB 3) shown in FIG. 6 is configured to identify events and accidents occurring in each of the nuclear units 20 a to 20 c from the data recorded in the DB 1 and the data recorded in the DB 2. It is a database for tabulating by the below-mentioned index.
- unit name names of the nuclear units 20a to 20c included in the nuclear power plant 20 are recorded. There is one record for one nuclear power unit 20x. Items “index 1” to “index 5” and item “priority” will be described later.
- the urgency determination logics L1, L3, and L5 of the unit-specific urgency determination unit 11 (hereinafter, simply referred to as logic L1, logic L3, logic L5, and in the claims, logic 1, logic 3, logic 5) explain.
- the logic L1 provides a function of determining the degree of urgency based on the number of “emergency treatment guidance” for each nuclear power unit 20a to 20c.
- the logic L1 uses the plant data (1 record of DB1) of each nuclear power unit 20a to 20c stored in DB1, “Status” is “Transmission”, and “Alarm classification” is “Emergency treatment guidance”
- the number of records is counted for each nuclear unit 20a to 20c, and index 1 for determining the urgency level of each nuclear unit 20a to 20c is totaled.
- the index 1 is the index with the highest priority.
- Logic L3 provides a function for determining the degree of urgency based on the number of alarms related to the “safety function” for each of the nuclear power units 20a to 20c.
- Logic L3 uses the plant data of each nuclear unit 20a-20c stored in DB1 to count the number of records for which “alarm classification” is related to “safety function” for each nuclear unit 20a-20c.
- the index 3 for determining the urgency level of the nuclear units 20a to 20c is totaled.
- the index 3 is the index with the third highest priority.
- the logic L5 provides a function of determining the degree of urgency based on the number of alarms related to the “general function” for each of the nuclear power units 20a to 20c.
- Logic L5 uses the plant data of each nuclear unit 20a-20c stored in DB1, and counts the number of records in which “alarm classification” is related to “general function” for each nuclear unit 20a-20c.
- the index 5 for determining the urgency level of the nuclear units 20a to 20c is totaled.
- the index 5 is the fifth highest priority index.
- the aggregation results of the indices 1, 3, and 5 by the logic L1, 3, and 5 are input to the “index 1”, “index 3”, and “index 5” fields of the records for the nuclear units 20a to 20c in the DB 3. .
- Logic L2 provides a function for determining the degree of influence on the other nuclear unit due to “infringement of safety function” for each of the nuclear units 20a to 20c. Infringement of safety function refers to a state in which the safety function is impaired, and the impact on other nuclear units is high. Specifically, the logic L2 first extracts all combinations of “parameters” and “states” whose “influence on other units” in DB2 is “infringement of safety function”.
- Logic L4 provides a function for determining the degree of influence on other nuclear units by “additional activation of safety functions” for each of the nuclear units 20a to 20c.
- the additional activation of the safety function refers to a state where the backup safety function is activated for a certain event or accident, and is a state where an influence on other nuclear units is predicted.
- the logic L4 first extracts all combinations of “parameters” and “states” in which “influence on other units” in DB2 is “additional activation of safety function”.
- the index 4 for determining the degree of influence on the other nuclear units 20a to 20c according to is tabulated.
- the index 4 is the index with the fourth highest priority.
- the priority determination unit 13 of the facility 10 prioritizes monitoring operations for the nuclear units 20a to 20c based on the indexes 1 to 5 calculated by the logics L1 to L5, and also has a high priority nuclear unit.
- the plant data of the nuclear unit 20a having the highest priority (priority 1) is automatically displayed, and the nuclear units 20b and 20c other than the priority 1 are displayed as related information.
- the main parameters are compared and displayed, and the recovery operation guidance for the nuclear power plant 20 as a whole is presented according to the events occurring in the nuclear unit 20a and the scope of the accident.
- Priority determination is performed by the priority determination unit 13. Priorities of the nuclear units 20a to 20c to be monitored are determined in order from the largest numerical value of the index 1. When the numerical value of the index 1 is the same, the priority of the nuclear unit 20x having a large numerical value of the index 2 is set high. When the index 2 is also the same, the index 3 is compared, the index 4 is also the same as the index 3, and the index 4 is compared when the index 4 is the same, and the priority of each nuclear power unit 20a to 20c is determined. The result is input to the item “priority” of DB3. Therefore, in the case of FIG. 6, the nuclear unit 20a has priority 1, the nuclear unit 20c has priority 2, and the nuclear unit 20b has priority 3.
- the recovery response guidance determination unit 14 displays the recovery response guidance based on the urgency level and the impact level, and prompts the corresponding operation to each of the nuclear units 20a to 20c.
- the response operation corresponding to the “parameter” and “state” generated for the priority 1 nuclear unit 20a is promoted, and the other nuclear units 20b and 20c that require continuous monitoring operation are also in accordance with the priority.
- FIG. 7A shows the configuration of the priority reference table 41t.
- FIG. 7B is a diagram showing the configuration of the general reference table 42t.
- the recovery correspondence guidance DB 4 is applied to the priority reference table 41t applied to the nuclear unit 20x with priority 1 (here, the nuclear unit 20a) and the nuclear unit other than priority 1 (here, the nuclear units 20b and 20c). It has a reference table 42t.
- the recovery guidance determination unit 14 first extracts a record in which “parameter” and “state” of each record of DB1 related to the nuclear unit 20a with priority 1 match “parameter” and “state” of the priority reference table 41t.
- the contents of the “response procedure” in the priority reference table 41t are displayed on the monitoring operation terminal, and the “parameters” and “states” of the nuclear units 20b and 20c in the DB1 are also related to the nuclear units 20b and 20c other than the priority 1. Records that match the “parameter” and “state” in the general reference table 42t, and similarly displays the contents of “corresponding procedure” on the monitoring operation terminal.
- the entire nuclear plant 20 is integratedly monitored, and the monitoring operation target of the monitoring operation terminal is automatically switched to monitor the high priority nuclear unit 20a. Can be preferentially supported.
- the second feature of the system 100 is that when the facility 10 determines that it is difficult to respond only by the facility of the nuclear power plant 20 where the event or accident has occurred according to the content of the response operation guidance, the other features shown in FIG.
- the remote integrated monitoring operation system 101 (hereinafter referred to as the system 101) can be requested to enter the monitoring operation as emergency support equipment.
- the facility 101 In order for the system 101 of another nuclear power plant 21 to enter the monitoring operation of the nuclear power plant 20 in which an accident has occurred as an emergency support facility, the facility 101 is installed according to the content of the recovery response guidance DB 4 of the nuclear power plant 20 in which the accident has occurred. 10, an emergency support request signal S sent to the system 101 is required.
- the transmission of the emergency support request signal S to the other nuclear power plant 21 is defined in the item “response procedure” of the priority reference table 41 t and the general reference table 42 t of the recovery response guidance DB 4.
- the emergency response request signal S is transmitted in accordance with the content (support request) of the response operation guidance determined by the recovery response guidance determination unit 14 based on.
- FIG. 8 is a block diagram illustrating a configuration of the plant integrated monitoring operation facility of the facility 40.
- the equipment 40 of the system 101 that has received the emergency support request signal S from the remote integrated monitoring and operating system 100 is specially permitted to enter the monitoring operation of another nuclear plant 20, and the nuclear plant 21 that has been monitored and operated so far
- the monitoring operation is performed by the unit alone on the small central control panel 23 installed for each of the nuclear power units 21a to 21c, and the connection with the nuclear power plant 21 is disconnected by the monitoring operation target switching function 26.
- the monitoring operation target switching function 26 In this way, by separating the nuclear units 21a to 21c from the system 101, congestion of monitoring operation information between the nuclear plant 21 and the nuclear plant 20 is prevented.
- manual connection by the monitoring operation target switching function 26 is further required.
- the equipment 10 and the equipment 40 of the system 100 and the system 101 always check the communication state by the network 5 by the wired communication abnormality detection function 28. If an abnormality occurs in the wired network 5, it is in charge of communication between the wired communication processing function 27 a responsible for communication with each monitoring operation terminal 7 and the gateway processor (GWP) of each nuclear power unit 20 a to 20 c.
- the wired communication processing function 27b is switched to the wireless communication processing functions 29a and 29b by the communication processing switching function 25. As a result, the monitoring operation function of each of the nuclear units 20a to 20c can be maintained.
- the remote integrated monitoring and operating system 100 in the event of an emergency, depending on the priority based on the urgency of the nuclear unit 20x (plant unit) where the event or accident occurred and the impact on the other nuclear units, It is possible to perform an integrated monitoring operation of all the nuclear units 20a to 20c, including a priority monitoring operation of the nuclear power unit in which the occurrence of the nuclear power is generated.
- the other remote integrated monitoring operation system 101 is monitored as an emergency support facility. It is possible to prevent the propagation of the influence due to the accident by requesting to enter.
- the plant integrated monitoring and operation facility 40 includes a wireless communication facility in preparation for disconnection of the wired network, communication with each nuclear power unit can be ensured even in the event of a major disaster.
- the system 100 can be applied to a plant other than a nuclear power plant.
- the embodiments can be appropriately modified and omitted within the scope of the invention.
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Abstract
Description
ネットワークを介して、プラントが有する複数のプラントユニットを監視、操作する、遠隔統合監視操作システムにおいて、
前記遠隔統合監視操作システムは、
前記プラントユニットの名称と前記プラントユニットで発生した事象を示すパラメータと前記パラメータの状態と前記パラメータ及び前記状態が示す警報分類とを1レコードとして順次記録するユニット統合データベースと、
前記パラメータと前記状態の組み合わせ毎に、前記組み合わせに該当する事象が、他の前記プラントユニットに及ぼす影響を記録するユニット間影響度評価データベースと、
復旧対応の優先度が優先度1である前記プラントユニットで発生した前記パラメータと前記状態の組み合わせに該当する前記事象の対応手順を記録する優先参照テーブル及び前記優先度1以外の前記プラントユニットで発生した前記パラメータと前記状態の組み合わせに該当する前記事象の対応手順を記録する一般参照テーブルとを有する復旧対応ガイダンスデータベースと、
前記ユニット統合データベースの前記警報分類から、各前記プラントユニットの緊急度を判定するユニット別緊急度判定部と、
前記ユニット統合データベースと前記ユニット間影響度評価データベースから前記事象が他の前記プラントユニットに及ぼす影響を評価するユニット間影響度判定部と、
前記ユニット別緊急度判定部が各前記プラントユニット毎に判定した緊急度と前記ユニット間影響度判定部が各前記プラントユニット毎に判定した影響度から各前記プラントユニット間の優先度を判定する優先度判定部とを備えたものである。
緊急時には、事象、事故が発生した原子力ユニット(プラントユニット)の緊急度と他の原子力ユニットに対する影響度に基づく優先度に応じて、事故が発生した原子力ユニットの優先監視操作を含む、全ての原子力ユニットの統合監視操作を行うことができる。
図1は、本発明の実施の形態1に係る遠隔統合監視操作システム100(以下、単にシステム100という)のシステム構成を示すブロック図である。以下、原子力プラントでの活用例を説明する。システム100は、監視操作対象である原子力プラント20単位で設置され、図1では、各原子力ユニット20a~20c(本実施例では3基用いる)のプラントデータを遠隔監視操作用ネットワーク5(以下、ネットワーク5という)により収集することで原子力ユニット20a~20cの個別の情報を統合管理し、各原子力ユニット20a~20cのプラント機器20a1~20c1の操作を可能にしたシステムである。また、システム100は、監視操作対象である原子力発電所外に設置するシステムである。
図2は、設備10の構成を示すブロック図である。
図3は、設備10が使用する各データベースの関係を示すブロック図である。
図4は、ユニット統合データベースDB1のレコード構成を示す図である。
図5は、ユニット間影響度評価データベースDB2のレコード構成を示す図である。
図6は、優先度判定データベースのレコード構成を示す図である。
ロジックL1は、原子力ユニット20a~20c別に「緊急処置ガイダンス」の数による緊急度を判定する機能を提供する。ロジックL1は、DB1に保存された各原子力ユニット20a~20cのプラントデータ(DB1の1レコード)を用いて、「状態」が「発信」であり、「警報分類」が「緊急処置ガイダンス」であるレコード数を、原子力ユニット20a~20c毎にカウントして、各原子力ユニット20a~20cの緊急度を判定するための指標1を集計する。指標1は、最も優先度の高い指標となる。
ロジックL5は、DB1に保存された各原子力ユニット20a~20cのプラントデータを用いて、「警報分類」が「一般機能」に関係するレコード数を、原子力ユニット20a~20c毎にカウントして、各原子力ユニット20a~20cの緊急度を判定するための指標5を集計する。指標5は、5番目に優先度の高い指標となる。ロジックL1、3、5による指標1、3、5の集計結果は、DB3の各原子力ユニット20a~20c用のレコードの「指標1」、「指標3」、「指標5」の欄に入力される。
図7(a)は、優先参照テーブル41tの構成を示す図である。
図7(b)は、一般参照テーブル42tの構成を示す図である。
復旧対応ガイダンスDB4は、優先度1の原子力ユニット20x(ここでは原子力ユニット20a)に適用する優先参照テーブル41tと、優先度1以外の原子力ユニット(ここでは、原子力ユニット20b、20c)に適用する一般参照テーブル42tを有している。復旧対応ガイダンス決定部14は、まず、優先度1の原子力ユニット20aに関するDB1の各レコードの「パラメータ」と「状態」が、優先参照テーブル41tの「パラメータ」と「状態」と一致するレコードを抽出し、優先参照テーブル41tの「対応手順」の内容を監視操作端末に表示するとともに、優先度1以外の原子力ユニット20b、20cに関しても、DB1の原子力ユニット20b、20cの「パラメータ」と「状態」が一般参照テーブル42tの「パラメータ」と「状態」と一致するレコードを抽出し、同様に「対応手順」の内容を監視操作端末に表示する。
図8は、設備40のプラント統合監視操作設備の構成を示すブロック図である。
遠隔統合監視操作システム100から緊急支援要請信号Sを受信したシステム101の設備40は、他の原子力プラント20の監視操作に参入することが特別許可され、これまで監視操作していた原子力プラント21の監視操作を、原子力ユニット21a~21c毎に設置した小規模な中央制御盤23にてユニット単独で行なうこととし、監視操作対象切替機能26により原子力プラント21との接続を切断する。このように、原子力ユニット21a~21cをシステム101から切り離すことで、原子力プラント21と原子力プラント20との監視操作情報の輻輳を防止する。システム101が、他の原子力プラント20の遠隔統合監視操作システムとして機能するには、更に監視操作対象切替機能26による手動接続が必要である。
Claims (6)
- ネットワークを介して、プラントが有する複数のプラントユニットを監視、操作する、遠隔統合監視操作システムにおいて、
前記遠隔統合監視操作システムは、
前記プラントユニットの名称と前記プラントユニットで発生した事象を示すパラメータと前記パラメータの状態と前記パラメータ及び前記状態が示す警報分類とを1レコードとして順次記録するユニット統合データベースと、
前記パラメータと前記状態の組み合わせ毎に、前記組み合わせに該当する事象が、他の前記プラントユニットに及ぼす影響を記録するユニット間影響度評価データベースと、
復旧対応の優先度が優先度1である前記プラントユニットで発生した前記パラメータと前記状態の組み合わせに該当する前記事象の対応手順を記録する優先参照テーブル及び前記優先度1以外の前記プラントユニットで発生した前記パラメータと前記状態の組み合わせに該当する前記事象の対応手順を記録する一般参照テーブルとを有する復旧対応ガイダンスデータベースと、
前記ユニット統合データベースの前記警報分類から、各前記プラントユニットの緊急度を判定するユニット別緊急度判定部と、
前記ユニット統合データベースと前記ユニット間影響度評価データベースから前記事象が他の前記プラントユニットに及ぼす影響を評価するユニット間影響度判定部と、
前記ユニット別緊急度判定部が各前記プラントユニット毎に判定した緊急度と前記ユニット間影響度判定部が各前記プラントユニット毎に判定した影響度から各前記プラントユニット間の優先度を判定する優先度判定部とを備えた遠隔統合監視操作システム。 - 前記ユニット別緊急度判定部は、前記ユニット統合データベースに記録されたレコードから前記プラントユニット別に、前記警報分類の一つとして記録された緊急処置ガイダンスの数をカウントして各前記プラントユニットの緊急度を判定するロジック1と、
前記ユニット統合データベースに記録されたレコードから前記プラントユニット別に、前記警報分類に記録された安全機能に関する警報数をカウントして各前記プラントユニットの緊急度を判定するロジック3と、
前記ユニット統合データベースに記録されたレコードから前記プラントユニット別に、前記警報分類に記録された一般機能に関する警報数をカウントして各前記プラントユニットの緊急度を判定するロジック5とを備えた請求項1に記載の遠隔統合監視操作システム。 - 前記ユニット間影響度判定部は、前記ユニット間影響度評価データベースに記録された他ユニットへの影響の項目が、安全機能の侵害であるパラメータと状態の組み合わせを全て抽出し、前記組み合わせと前記パラメータと前記状態が一致する前記ユニット統合データベースのレコード数を前記原子力ユニット毎にカウントして前記事象の他のプラントユニットへの影響度を判定するロジック2と、
前記ユニット間影響度判定部は、前記ユニット間影響度評価データベースに記録された他ユニットへの影響の項目が、安全機能の追加起動であるパラメータと状態の組み合わせを全て抽出し、前記組み合わせと、前記パラメータと前記状態が一致する前記ユニット統合データベースのレコード数を前記原子力ユニット毎にカウントして前記事象の他のプラントユニットへの影響度を判定するロジック4とを備えた請求項2に記載の遠隔統合監視操作システム。 - 各前記ロジック1から前記ロジック5に該当する各前記レコード数を、指標1から指標5の値として前記プラントユニット毎に記録する優先度判定データベースを備え、
前記優先度判定部は、前記指標1から前記指標5の順に、各前記プラントユニットの各前記指標の値の大小を比較して、値の大きいプラントユニットから順に抜き出し優先度を判定する請求項3に記載の遠隔統合監視操作システム。 - 前記優先参照テーブルの対応手順には、別のプラントに提供されている別の遠隔統合監視操作システムに対して緊急支援要請信号を送信する手順を含む請求項1から請求項4のいずれか1項に記載の遠隔統合監視操作システム。
- 前記ネットワークを監視し、有線ネットワークに障害が発生すると無線通信に切り替える通信処理切替機能を備えた請求項5に記載の遠隔統合監視操作システム。
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