CN107577781B - Real-time maintenance method for power grid regulation and control model center model - Google Patents
Real-time maintenance method for power grid regulation and control model center model Download PDFInfo
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Abstract
The invention discloses a real-time maintenance method of a power grid regulation model center model, which comprises the steps of classifying the model from two layers of model objects and model object attributes; establishing a model maintenance authority management method with a plant station as granularity, finishing the judgment of maintenance authority by model service of a model center, and realizing the distributed source end maintenance of the model within the administration range of the model center; and establishing a consistency submitting mechanism between the model center and the access subsystem, coordinating the common model submitting state between the model center and the access subsystem, and realizing the real-time maintenance of the model center and the access subsystem. The invention meets the maintenance requirement of the distributed source end of the access subsystem model, reduces the maintenance complexity of the model center model, improves the timeliness and the expansibility of the model center model updating, ensures the strong consistency of the power grid model of each level of access model center system, and provides bottom model data support for developing various online and offline applications in the model center.
Description
Technical Field
The invention relates to a real-time maintenance method for a power grid regulation and control model center model, and belongs to the technical field of intelligent power grids.
Background
With the deepening of the construction of a national network large operation system, the model assessment of national dispatching on each province, city and branch center is stricter, and the dispatching centers at all levels develop research work of related model management. In the range of national networks, all levels of scheduling centers basically realize the sharing of common models through a model splicing technology based on CIM/E. With the development of smart grid model sharing technology, a new model sharing mode is generated for a grid model center mode, and the model center comprises a model center system and an access subsystem (namely an accessed grid dispatching control system). Compared with the traditional model sharing based on the model splicing technology, the novel model sharing mode needs to meet the requirement of maintaining the distributed source end of each access subsystem model, reduces the complexity of maintaining the model center model, improves the timeliness and expansibility of updating the model center model, and ensures the strong consistency of the power grid models of all levels of access model center systems, and no method for simultaneously meeting the requirement exists at present.
Disclosure of Invention
In order to solve the technical problem, the invention provides a real-time maintenance method for a central model of a power grid regulation and control model.
In order to achieve the purpose, the invention adopts the technical scheme that:
a real-time maintenance method for a central model of a power grid regulation and control model comprises the following steps,
classifying the model from two levels of the model object and the model object attribute;
establishing a model maintenance authority management method with a plant station as granularity, finishing the judgment of maintenance authority by model service of a model center, and realizing the distributed source end maintenance of the model within the administration range of the model center;
and establishing a consistency submitting mechanism between the model center and the access subsystem, coordinating the common model submitting state between the model center and the access subsystem, and realizing the real-time maintenance of the model center and the access subsystem.
The model classification supports the division from a model object, namely, a model classification identifier is set for a model table in an access subsystem to indicate whether records in the model table need to be synchronized to a model center;
the model classification supports the classification from the attributes of the model object, namely, the model classification identifier is set for the attributes of the model table in the access subsystem, and the attributes recorded in the model table are indicated to be synchronized to the model center.
The model category comprises a public model and a private model; the public model refers to an equipment model which needs to be shared among all access subsystems and is consistent with a physical power grid; the private model refers to local configuration information which does not need to be shared among all the access subsystems and is used for supporting various application functions in the access subsystems to run.
Establishing a model maintenance authority management method taking a station as granularity, specifically comprising the following steps,
each access subsystem is configured with a unique maintenance authority code;
in the model center range, adding an attribute 'the area to which the model belongs' to the plant station model object table for describing the maintenance authority of the plant station model object table, namely indicating that an access subsystem has the maintenance authority of the plant station and the subordinate model;
and when station records are newly added in the access subsystem through the model editing tool, filling the value of the region to which the model belongs according to the access subsystem where the current model operation is positioned.
The values for filling the "region to which the model belongs" include automatic filling and manual setting;
automatic filling: the model editing tool automatically fills a value of 'a region to which a model belongs' according to an access subsystem in which the current model is operated, and the value is defaulted as a maintenance authority code corresponding to the access subsystem;
manual setting: and setting the value of the region to which the model belongs as a maintenance authority code corresponding to a superior system of an access subsystem in which the current model is operated.
Providing an additional maintenance authority setting rule for special equipment objects including transformer windings, alternating current line sections, alternating current line section end points and a public model table without the attribute of the station to which the special equipment objects belong:
for the transformer winding records belonging to the same transformer, the maintenance authority of the transformer winding records is consistent with the station to which the transformer belongs;
recording the alternating current line sections of which the head end stations and the tail end stations are not in the same access subsystem, wherein the maintenance authority of the alternating current line sections is consistent with that of the head end station of the record, and the end point record of the alternating current line sections corresponding to the record is consistent with that of the station where the alternating current line sections are located;
for a public model table without the affiliated plant station, additionally adding a 'model affiliated area' for describing the maintenance authority of the public model table.
Establishing a consistent submitting mechanism between a model center and an access subsystem, which comprises the following specific processes,
1) maintaining the model by a model maintenance tool of an access subsystem, submitting a model maintenance request to a local model service, disassembling the model request by the local model service, directly submitting a local model library by a private model object operation, and then returning an operation result to the model maintenance tool; the public model object operation further analyzes the public attribute and then generates a model center model operation message which comprises the maintenance authority code of the access subsystem and the model operation information;
2) the access subsystem model service submits the model operation message to the model service of the model center;
3) the model center model service receives the model operation message and carries out analysis processing, including maintenance authority judgment, Undo log generation and transaction submission;
4) and the model center model service returns the execution result of the step 3 to the access subsystem model service.
5) The access subsystem analyzes and processes the execution result returned by the model center, and if the model center fails to be put in storage, the operation failure is returned to the model maintenance tool; if the model center model is successfully put in the database, submitting the original statement of the model operation to a local model database for execution;
6) the access subsystem model service informs the model center model service of the local model storage condition;
7) the model center model service receives and processes the access subsystem model operation execution condition message, and if the access subsystem model fails to be put in storage, the model center executes the pre-written Undo log; if the access subsystem model is successfully put in storage, clearing the pre-written Undo log;
8) the model center model service returns the Undo log execution result to the access subsystem;
9) the access subsystem model service returns the execution results to the model editing tool.
Judging the model maintenance authority, comparing the plant station or self maintenance authority code of the model operation message operation object with the access subsystem maintenance authority code carried in the model operation message, and when the two values are the same, indicating that the model operation is legal, otherwise, returning illegal operation information;
generating Undo logs, generating a model inverse operation statement, and corresponding to different processing processes according to the model operation type of the model operation message;
and submitting the transaction, namely submitting the model inverse operation statement and the model operation statement in one transaction, and submitting the model inverse operation statement to the global model consistency rollback table.
The invention achieves the following beneficial effects: the invention meets the requirement of the distributed source end dimension of the access subsystem model, reduces the maintenance complexity of the model center model, improves the timeliness and the expansibility of the model center model updating, ensures the strong consistency of the power grid model of each level of access model center system, and provides bottom model data support for developing various online and offline applications in the model center.
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FIG. 1 is a data flow diagram of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
A real-time maintenance method for a central model of a power grid regulation and control model comprises the following steps,
The model classification supports the division from a model object, namely, a model classification identifier is set for a model table in an access subsystem to indicate whether records in the model table need to be synchronized to a model center; the model classification supports the classification from the attributes of the model object, namely, the model classification identifier is set for the attributes of the model table in the access subsystem, and the attributes recorded in the model table are indicated to be synchronized to the model center.
The model category comprises a public model and a private model; the public model refers to an equipment model which needs to be shared among all access subsystems and is consistent with a physical power grid, such as information of voltage types, primary equipment of the power grid and the like; the private model refers to local configuration information which does not need to be shared among all the access subsystems, and is used for supporting various application functions in the access subsystems to run, such as system management, authority, responsibility area and other information.
And 2, establishing a model maintenance authority management method with the plant station as the granularity, finishing the judgment of the maintenance authority by the model service of the model center, and realizing the distributed source end maintenance of the model within the scope governed by the model center.
Establishing a model maintenance authority management method taking a station as granularity, which comprises the following specific processes:
21) defining a unique maintenance authority code configured for each access subsystem, wherein the maintenance authority codes ensure that the access subsystems are not repeated in a model center and are not changed for the whole life;
22) in the model center range, adding an attribute 'the area to which the model belongs' to the plant station model object table for describing the maintenance authority of the plant station model object table, namely indicating that an access subsystem has the maintenance authority of the plant station and the subordinate model;
23) and when station records are newly added in the access subsystem through the model editing tool, filling the value of the region to which the model belongs according to the access subsystem where the current model operation is positioned. The values for filling the "region to which the model belongs" include automatic filling and manual setting; automatic filling: the model editing tool automatically fills a value of 'a region to which a model belongs' according to an access subsystem in which the current model is operated, and the value is defaulted as a maintenance authority code corresponding to the access subsystem; manual setting: and setting the value of the region to which the model belongs as a maintenance authority code corresponding to a superior system of an access subsystem in which the current model is operated.
Once the plant maintenance authority is determined, the maintenance authority of any voltage level and any equipment in the plant is consistent with the maintenance authority of the plant. Providing an additional maintenance authority setting rule for special equipment objects including transformer windings, alternating current line sections, alternating current line section end points and a public model table without the attribute of the station to which the special equipment objects belong:
A. for the transformer winding records belonging to the same transformer, the maintenance authority of the transformer winding records is consistent with the station to which the transformer belongs;
B. recording the alternating current line sections of which the head end stations and the tail end stations are not in the same access subsystem, wherein the maintenance authority of the alternating current line sections is consistent with that of the head end station of the record, and the end point record of the alternating current line sections corresponding to the record is consistent with that of the station where the alternating current line sections are located;
C. for a public model table without the affiliated plant station, additionally adding a 'model affiliated area' for describing the maintenance authority of the public model table.
And 3, establishing a consistency submitting mechanism between the model center and the access subsystem, coordinating the common model submitting state between the model center and the access subsystem, and realizing the real-time maintenance of the model center and the access subsystem.
Establishing a consistency submitting mechanism between a model center and an access subsystem, and the specific process comprises the following steps:
31) maintaining the model by a model maintenance tool of an access subsystem, submitting a model maintenance request to a local model service, disassembling the model request by the local model service, directly submitting a local model library by a private model object operation, and then returning an operation result to the model maintenance tool; the public model object operation further analyzes the public attribute and then generates a model center model operation message which comprises the maintenance authority code of the access subsystem and the model operation information;
32) the access subsystem model service submits the model operation message to the model service of the model center;
33) the model center model service receives the model operation message and carries out analysis processing, including maintenance authority judgment, Undo log generation and transaction submission;
judging the model maintenance authority: comparing the plant station or self maintenance authority code of the model operation message operation object with the access subsystem maintenance authority code carried in the model operation message, and when the two values are the same, indicating that the model operation is legal, otherwise, returning illegal operation information;
generating Undo logs: generating a model inverse operation statement, and corresponding to different processing processes according to the model operation type of the model operation message; the INSERT operation extracts the main key information of the model object in the model operation message to generate a DELETE operation statement; the UPDATE operation obtains the current value of the record attribute in the model operation message from the model center to generate an UPDATE operation statement; the DELETE operation acquires all attribute values of the record in the model operation message from the model center, and generates an INSERT operation statement;
transaction commit: model inverse operation statements and model operation statements in the model operation statements are submitted in a transaction, and the model inverse operation statements are submitted to a global model consistency backspacing table;
34) and the model center model service returns the execution result of the step 3 to the access subsystem model service.
35) The access subsystem analyzes and processes the execution result returned by the model center, and if the model center fails to be put in storage, the operation failure is returned to the model maintenance tool; if the model center model is successfully put in the database, submitting the original statement of the model operation to a local model database for execution;
36) the access subsystem model service informs the model center model service of the local model storage condition;
37) the model center model service receives and processes the access subsystem model operation execution condition message, if the access subsystem model fails to be put in storage, the model center executes the pre-written Undo log, namely, the model center model returns to the state before modification; if the access subsystem model is successfully put in storage, clearing the pre-written Undo log;
38) the model center model service returns the Undo log execution result to the access subsystem;
39) the access subsystem model service returns the execution results to the model editing tool.
Taking a certain model center as an example, the method is explained by the maintenance of a station model and a bus model.
Assuming that the maintenance authority code of the access subsystem configuration model is 100, the attribute conditions of the station table and the bus bar table are shown as table one:
table-to-plant and bus table attributes
| Model watch | Attribute Domain | Model classification |
| Station table | Identification | Public model |
| Station table | Name (R) | Public model |
| Station table | Station number | Private model |
| Station table | Region to which model belongs | Public model |
| Bus meter | Identification | Public model |
| Bus meter | Name (R) | Public model |
| Bus meter | Belonging station | Public model |
As shown in FIG. 1, the plant model maintenance process is as follows:
s1) creating a plant station record in the access subsystem A through a model editing tool, wherein the record comprises the following steps: the label is 1; the name "test"; station number is "10"; the region to which the model belongs is "100".
S2) the access subsystem model service receives the request, extracts the public attribute information of the plant table, namely the identification, the name, the region to which the model belongs and the local model maintenance authority code, and constructs a new model operation message to be submitted to the model center model service.
S3), the model center model service receives the model operation message for analysis: the INSERT operation default maintenance authority of the station table is legal; generating a Undo log, namely deleting the record with the identifier 1 from the station table; and submitting a new station statement and simultaneously submitting an Undo log to a global model consistency backspacing table. At this time, the records shown in table two exist in the factory site table of the model center:
plant site table record of table two model center
| Identification | Name (R) | Region to which model belongs |
| 1 | test | 100 |
S4) returns the model centric model operation execution situation to the access subsystem model service.
S5) the access subsystem analyzes the model execution result returned by the model center and processes the result, if the model execution fails, the result is returned to the model editing tool, otherwise, the original model operation is submitted to the local model library. At this time, there are records in the access subsystem factory site table as shown in table three:
meter-three access subsystem plant site table record
| Identification | Name (R) | Region to which model belongs | |
| 1 | test | 100 | 10 |
S6) the access subsystem model service notifies the model center model service of the local model warehousing condition.
S7), the model center model service receives and processes the access subsystem model operation execution condition message, and if the access subsystem model execution fails, the Undo log saved in the step 3 is taken out and executed; and if the access subsystem model is successfully executed, deleting the Undo log saved in the step 3.
S8) the model centric model service returns the Undo log execution result to the access subsystem.
S9) the access subsystem model service returns the execution result to the model editing tool.
The bus model maintenance process is as follows:
a1) creating a bus record in the access subsystem A through a model editing tool, wherein the record comprises the following steps: the label is 1; the name is "test-bus"; the plant station is "test".
a2) And the access subsystem model service receives the request, extracts the public attribute information of the bus bar table, namely the identification, the name, the station to which the bus bar table belongs and the maintenance authority code of the local model, constructs a new model operation message and submits the new model operation message to the model center model service.
a3) The model center model service receives the model operation message for analysis processing: obtaining the model maintenance authority of the station 'test' as 100, obtaining the model maintenance authority code of the access subsystem as 100, and judging that the current model operation is legal due to the consistency of the model maintenance authority values of the two; generating a Undo log, namely deleting the record marked as 1 from the bus bar table; and submitting a new bus statement and simultaneously submitting an Undo log to a global model consistency backspacing table. At this time, there are records in the model center bus table as shown in table four:
meter four model center bus meter record
| Identification | Name (R) | Belonging |
| 1 | test-bus | test |
a4) And returning the operation execution condition of the model center model to the access subsystem model service.
a5) And the access subsystem analyzes and processes the model execution result returned by the model center, returns the result to the model editing tool if the model execution fails, and submits the original model operation to the local model library if the model execution fails. At this time, there are records in the access subsystem bus table as shown in table five:
bus-bar table record of table five access subsystem
| Identification | Name (R) | Belonging |
| 1 | test-bus | test |
a6) And the access subsystem model service informs the model center model service of the local model storage condition.
a7) The model center model service receives and processes the access subsystem model operation execution condition message, and if the access subsystem model fails to execute, the Undo log stored in the step 3 is taken out and executed; and if the access subsystem model is successfully executed, deleting the Undo log saved in the step 3.
a8) And the model center model service returns the Undo log execution result to the access subsystem.
a9) The access subsystem model service returns the execution results to the model editing tool.
The execution flow of UPDATE, DELETE operations is similar except for INSERT operations.
The method meets the requirement of the distributed source end dimension of the access subsystem model, reduces the maintenance complexity of the model center model, improves the timeliness and the expansibility of the model center model updating, ensures the strong consistency of the power grid model of each level of access model center system, and provides bottom model data support for developing various online and offline applications in the model center.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A real-time maintenance method for a central model of a power grid regulation and control model is characterized by comprising the following steps: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
classifying the model from two levels of the model object and the model object attribute; the model classification supports the division from a model object, namely, a model classification identifier is set for a model table in an access subsystem to indicate whether records in the model table need to be synchronized to a model center; the model classification supports the division from the attributes of model objects, namely, model classification identifiers are set for the attributes of a model table in an access subsystem, and which attributes recorded in the model table need to be synchronized to a model center are indicated; the model category comprises a public model and a private model; the public model refers to an equipment model which needs to be shared among all access subsystems and is consistent with a physical power grid; the private model refers to local configuration information which does not need to be shared among all the access subsystems and is used for supporting various application functions in the access subsystems to run;
establishing a model maintenance authority management method with a plant station as granularity, finishing the judgment of maintenance authority by model service of a model center, and realizing the distributed source end maintenance of the model within the administration range of the model center;
establishing a consistency submitting mechanism between the model center and the access subsystem, coordinating the common model submitting state between the model center and the access subsystem, and realizing the real-time maintenance of the model center and the access subsystem;
establishing a consistent submitting mechanism between a model center and an access subsystem, which comprises the following specific processes,
1) maintaining the model by a model maintenance tool of an access subsystem, submitting a model maintenance request to a local model service, disassembling the model request by the local model service, directly submitting a local model library by a private model object operation, and then returning an operation result to the model maintenance tool; the public model object operation further analyzes the public attribute and then generates a model center model operation message which comprises the maintenance authority code of the access subsystem and the model operation information;
2) the access subsystem model service submits the model operation message to the model service of the model center;
3) the model center model service receives the model operation message and carries out analysis processing, including maintenance authority judgment, Undo log generation and transaction submission;
4) the model center model service returns the execution result of the step 3 to the access subsystem model service;
5) the access subsystem analyzes and processes the execution result returned by the model center, and if the model center fails to be put in storage, the operation failure is returned to the model maintenance tool; if the model center model is successfully put in the database, submitting the original statement of the model operation to a local model database for execution;
6) the access subsystem model service informs the model center model service of the local model storage condition;
7) the model center model service receives and processes the access subsystem model operation execution condition message, and if the access subsystem model fails to be put in storage, the model center executes the pre-written Undo log; if the access subsystem model is successfully put in storage, clearing the pre-written Undo log;
8) the model center model service returns the Undo log execution result to the access subsystem;
9) the access subsystem model service returns the execution results to the model editing tool.
2. The real-time maintenance method of the power grid regulation and control model center model according to claim 1, characterized in that: establishing a model maintenance authority management method taking a station as granularity, specifically comprising the following steps,
each access subsystem is configured with a unique maintenance authority code;
in the model center range, adding an attribute 'the area to which the model belongs' to the plant station model object table for describing the maintenance authority of the plant station model object table, namely indicating that an access subsystem has the maintenance authority of the plant station and the subordinate model;
and when station records are newly added in the access subsystem through the model editing tool, filling the value of the region to which the model belongs according to the access subsystem where the current model operation is positioned.
3. The real-time maintenance method of the power grid regulation and control model center model according to claim 2, characterized in that: the values for filling the "region to which the model belongs" include automatic filling and manual setting;
automatic filling: the model editing tool automatically fills a value of 'a region to which a model belongs' according to an access subsystem in which the current model is operated, and the value is defaulted as a maintenance authority code corresponding to the access subsystem;
manual setting: and setting the value of the region to which the model belongs as a maintenance authority code corresponding to a superior system of an access subsystem in which the current model is operated.
4. The real-time maintenance method of the power grid regulation and control model center model according to claim 2, characterized in that: providing an additional maintenance authority setting rule for special equipment objects including transformer windings, alternating current line sections, alternating current line section end points and a public model table without the attribute of the station to which the special equipment objects belong:
for the transformer winding records belonging to the same transformer, the maintenance authority of the transformer winding records is consistent with the station to which the transformer belongs;
recording the alternating current line sections of which the head end stations and the tail end stations are not in the same access subsystem, wherein the maintenance authority of the alternating current line sections is consistent with that of the head end station of the record, and the end point record of the alternating current line sections corresponding to the record is consistent with that of the station where the alternating current line sections are located;
for a public model table without the affiliated plant station, additionally adding a 'model affiliated area' for describing the maintenance authority of the public model table.
5. The real-time maintenance method of the power grid regulation and control model center model according to claim 1, characterized in that: judging the model maintenance authority, comparing the plant station or self maintenance authority code of the model operation message operation object with the access subsystem maintenance authority code carried in the model operation message, and when the two values are the same, indicating that the model operation is legal, otherwise, returning illegal operation information;
generating Undo logs, generating a model inverse operation statement, and corresponding to different processing processes according to the model operation type of the model operation message;
and submitting the transaction, namely submitting the model inverse operation statement and the model operation statement in one transaction, and submitting the model inverse operation statement to the global model consistency rollback table.
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