WO2021057459A1 - 监控后台数据库、scd及rcd的同步系统及方法 - Google Patents
监控后台数据库、scd及rcd的同步系统及方法 Download PDFInfo
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- WO2021057459A1 WO2021057459A1 PCT/CN2020/113854 CN2020113854W WO2021057459A1 WO 2021057459 A1 WO2021057459 A1 WO 2021057459A1 CN 2020113854 W CN2020113854 W CN 2020113854W WO 2021057459 A1 WO2021057459 A1 WO 2021057459A1
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
- G06F16/275—Synchronous replication
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/23—Updating
- G06F16/2365—Ensuring data consistency and integrity
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
Definitions
- the present invention relates to the technical field of power systems, and in particular to a synchronization system and method for a substation monitoring background database, SCD and RCD signal information (remote signaling, telemetry, and remote control) based on the IEC61850 protocol.
- SCD and RCD signal information remote signaling, telemetry, and remote control
- SCD files Substation Configuration Description, site-wide system configuration files
- RCD files Remote Configuration Description, remote configuration description files
- the synchronization method of SCD and RCD and monitoring background database in smart substation is mainly modified by manual operation.
- the SCD cannot be synchronized in real time.
- Such a separate manual modification cannot guarantee that the modified data at the two ends (monitoring background database file, SCD file) are consistent, and the difference before and after modification cannot be seen.
- the monitoring background can export the RCD file consistent with the monitoring system, the signal information of the exported RCD file cannot be consistent with the SCD.
- the three monitoring information files of the monitoring background database, SCD, and RCD cannot be consistent, and it is difficult to realize the promotion of joint debugging of substations and control master stations based on these three files.
- the present invention proposes a solution to the signal information synchronization scheme of SCD, RCD, and monitoring background database.
- This scheme defines the synchronization trigger of the three signal information as a "synchronization token".
- the "synchronization token” contains the signal information that needs to be modified and its modification path to ensure the uniqueness and validity of the "synchronization token”.
- a "modification token” is set for the initiation of the modification information, which contains the modified signal information, path, and modification direction. After each modification of the "modification token” initiation confirmation, the transmission of the "synchronization token” will be initiated. In this way, these two “tokens” complete the synchronization of the three signal information.
- the correct rate of data synchronization of the three parties can reach 100%, and the time saving rate can reach over 99%. Not only greatly improves work efficiency, but also ensures reliable and safe operation of the power grid.
- a synchronization system for substation monitoring background database, SCD and RCD which is characterized by comprising: synchronization token management unit, SCD synchronization module, RCD synchronization module and monitoring background database synchronization module;
- the synchronization token management unit is used for issuing or recovering to the SCD synchronization module or the RCD synchronization module or the monitoring background database synchronization module that there can only be at most one modification token at a time;
- the SCD synchronization module, RCD synchronization module, and monitoring background database synchronization module are used to apply to the synchronization token management unit for a modification token when the SCD file or RCD file or monitoring background database data needs to be modified, and after obtaining the modification token Perform the modification operation and write the modification information to the modification token, and then send the modification token back to the synchronization token management unit;
- the synchronization token management unit recovers the modified token written with the modified information and passes the verification, writes the modified information into the synchronization token, and sends the modified information to the two synchronization modules that have not applied for the modified token for synchronous modification of data .
- the modification token generated and issued by the synchronization token management unit includes the information of the synchronization module that applies for the modification of the token and the information that allows the modification status.
- the two synchronization modules that have not applied for token modification receive the synchronization token, they perform data positioning and modification, and after the modification is completed, the modified information is fed back to the synchronization token management unit.
- the synchronization token management unit receives the feedback of the modified information, it notifies the SCD synchronization module, the RCD synchronization module and the monitoring background database synchronization module to perform self-check before and after the modification and generate the modified difference information.
- the synchronization token management unit does not generate a new modification token during the period from when the synchronization token management unit generates the modified token to the completion of receiving the feedback of the modified information.
- a synchronization method for substation monitoring background database, SCD and RCD is characterized in that it is based on a synchronization token management unit, an SCD synchronization module, an RCD synchronization module and a monitoring background database synchronization module; the synchronization token management unit is used to issue or Recover at most one modification token at a time, and issue synchronization tokens;
- Step S1 The SCD synchronization module or the RCD synchronization module or the monitoring background database synchronization module applies to the synchronization token management unit to modify the token;
- Step S2 The synchronization token management unit issues a modification token according to the application when there is no ongoing synchronization task, and the modification token includes the information of the synchronization module applying for the modification of the token and the information of the allowed modification status;
- Step S3 The synchronization module applying for the modification token executes the modification operation after obtaining the modification token and writes modification information to the modification token, and then transmits the modification token back to the synchronization token management unit;
- Step S4 The synchronization token management unit recovers the modified token with the modified information and passes the verification, writes the modified information into the synchronization token, and sends it to the two synchronization modules that have not applied for the modified token;
- Step S5 After the two synchronization modules that have not applied for token modification receive the synchronization token, they perform data positioning and modification, and after the modification is completed, the modified information is fed back to the synchronization token management unit;
- Step S6 After the synchronization token management unit receives the feedback of the modified information, it notifies the SCD synchronization module, the RCD synchronization module and the monitoring background database synchronization module to perform self-check before and after the modification and generate modified difference information.
- the criterion for determining whether the synchronization token management unit has an ongoing synchronization task is: whether the synchronization token management unit generates the modified token until the feedback of the modified information is received; If the synchronization token management unit has an ongoing synchronization task, the modified token application enters the queue state until the previous synchronization task is completed.
- the data modification performs the rollback operation: the historical modification token corresponding to the data to be rolled back is retrieved through the synchronization token management unit, and then the reverse synchronization operation is performed: the synchronization token management unit sends the SCD, RCD, and The monitoring background database respectively issues synchronization tokens for reverse operations, and generates rollback operation records.
- Figure 1 is a schematic diagram of an SCD modification synchronization process according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of the RCD modification synchronization process according to an embodiment of the present invention.
- Fig. 3 is a schematic diagram of a modification and synchronization process of a monitoring background database according to an embodiment of the present invention.
- the initiator SCD or RCD or monitoring background database
- the synchronization token management unit generates only one modification token in a synchronization process, and this modification token includes the modified module and its allowed modification status.
- the SCD or RCD or the monitoring background database is modified, it needs to obtain the modification token from the synchronization token management unit for modification authorization. This ensures unified modification time and modification uniqueness.
- the modification to the SCD can be allowed.
- the modification token with the modification information is returned to the synchronization token management unit.
- the synchronization token management unit performs verification after receiving the modified token, and sends a synchronization token to the RCD synchronization module and the monitoring background database synchronization module after the verification is correct, and simultaneously modifies the corresponding information description.
- the RCD synchronization module and the monitoring background database synchronization module receive the synchronization token, they perform data positioning and modification, and after the modification is completed, the modified information is fed back to the synchronization token management unit.
- the synchronization token management unit After the synchronization token management unit receives the modified feedback information, it notifies the SCD synchronization module, the RCD synchronization module, and the monitoring background database synchronization module to perform self-check before and after the modification and obtain the modified difference information and display it to the user.
- the RCD synchronization module after the RCD synchronization module obtains the modification token, it can allow the RCD to be modified, and after the modification is completed, the modification token with the modification information is returned to the synchronization token management unit.
- the synchronization token management unit performs verification after receiving the modified token, and after the verification is correct, sends a synchronization token to the SCD synchronization module and the monitoring background database synchronization module, and modifies the corresponding information description at the same time.
- the SCD synchronization module and the monitoring background database synchronization module receive the synchronization token, they perform data positioning and modification, and after the modification is completed, the modified information is fed back to the synchronization token management unit.
- the synchronization token management unit After the synchronization token management unit receives the modified feedback information, it notifies the SCD synchronization module, the RCD synchronization module and the monitoring background database synchronization module to perform self-check before and after the modification, and obtain the modified difference information and display it to the user.
- FIG 3 The monitoring background database modification synchronization method is the same as that shown in Figure 1 and Figure 2, and the synchronization method is basically the same.
- the rollback of data modification can also be performed by the synchronization token management unit.
Abstract
Description
Claims (8)
- 一种变电站监控后台数据库、SCD及RCD的同步系统,其特征在于,包括:同步令牌管理单元、SCD同步模块、RCD同步模块和监控后台数据库同步模块;所述同步令牌管理单元用于向SCD同步模块或RCD同步模块或监控后台数据库同步模块发出或回收在一个时刻至多只能存在一个的用于修改信息发起的修改令牌;所述SCD同步模块、RCD同步模块和监控后台数据库同步模块在SCD文件或RCD文件或监控后台数据库数据需要修改时,用于向同步令牌管理单元申请修改令牌,并在获取修改令牌后执行修改操作并向修改令牌写入修改信息,之后将修改令牌回传至同步令牌管理单元;所述同步令牌管理单元回收写有修改信息的修改令牌后经校验通过,将修改信息写入用于监控后台数据库、SCD及RCD三者信号信息同步触发的同步令牌,发送给未申请修改令牌的两个同步模块,用于数据的同步修改。
- 根据权利要求1所述的变电站监控后台数据库、SCD及RCD的同步系统,其特征在于:所述同步令牌管理单元生成并发出的修改令牌包括申请修改令牌的同步模块的信息和允许修改状态的信息。
- 根据权利要求1所述的变电站监控后台数据库、SCD及RCD的同步系统,其特征在于:所述未申请修改令牌的两个同步模块接收同步令牌后,进行数据定位、修改,修改完毕后向同步令牌管理单元反馈修改后信息。
- 根据权利要求3所述的变电站监控后台数据库、SCD及RCD的同步系统,其特征在于:所述同步令牌管理单元接收完毕修改后信息的反馈后,通知SCD同步模块、RCD同步模块和监控后台数据库同步模块进行修改前后自校验并生成修改区别信息。
- 根据权利要求4所述的变电站监控后台数据库、SCD及RCD的同步系统,其特征在于:在所述同步令牌管理单元生成修改令牌至接收完毕修改后信息的反馈期间,同步令牌管理单元不生成新的修改令牌。
- 一种变电站监控后台数据库、SCD及RCD的同步方法,其特征在于,基于同步令牌管理单元、SCD同步模块、RCD同步模块和监控后台数据库同步模块;所述同步令牌管理单元用于发出或回收在一个时刻至多只能存在一个的修改令牌,以及发出同步令牌;包括以下步骤:步骤S1:所述SCD同步模块或RCD同步模块或监控后台数据库同步模块向同步令牌管理单元申请修改令牌;步骤S2:所述同步令牌管理单元在没有正在进行的同步任务的情况下,根据申请发出修改令牌,所述修改令牌包括申请修改令牌的同步模块的信息和允许修改状态的信息;步骤S3:所述申请修改令牌的同步模块在获取修改令牌后执行修改操作并向修改令牌写入修改信息,之后将修改令牌回传至同步令牌管理单元;步骤S4:所述同步令牌管理单元回收写有修改信息的修改令牌后经校验通过,将修改信息写入同步令牌,发送给未申请修改令牌的两个同步模块;步骤S5:所述未申请修改令牌的两个同步模块接收同步令牌后,进行数据定位、修改,修改完毕后向同步令牌管理单元反馈修改后信息;步骤S6:所述同步令牌管理单元接收完毕修改后信息的反馈后,通知SCD同步模块、RCD同步模块和监控后台数据库同步模块进行修改前后自校验并生成修改区别信息。
- 根据权利要求6所述的变电站监控后台数据库、SCD及RCD的同步方法,其特征在于:在步骤S2中,所述同步令牌管理单元是否有正在进行的同步任务的判断标准为:是否在同步令牌管理单元生成修改令牌至接收完毕修改后信息的反馈期间;如果所述同步令牌管理单元有正在进行的同步任务,则修改令牌申请进入排队状态,直至前一同步任务执行完毕。
- 根据权利要求6所述的变电站监控后台数据库、SCD及RCD的同步方法,其特征在于,当数据修改进行回退操作时:通过所述同步令牌管理单元调取待回退数据对应的历史修改令牌,然后进行反向同步操作:同步令牌管理单元向SCD、RCD和监控后台数据库分别发出反向操作的同步令牌,并生成回退的操作记录。
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