CN106021203B - Intelligent substation anti-misoperation lockout logic graphical expression method - Google Patents
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Abstract
The invention provides a logic graphical expression method for preventing misoperation and locking of an intelligent substation, which comprises the following steps: (1) progressively loading the interlocking rule file and scanning the rule content line by line; (2) generating an anti-misoperation lockout logic tree; (3) converting the interlocking logic relationship into a topological connection relationship; (4) and graphically expressing the interlocking logic relationship. The method and the device realize the visualization of the intelligent substation anti-misoperation lockout logic, improve the reading and checking efficiency of the anti-misoperation lockout logic, are favorable for saving the time-consuming and labor-consuming working cost of debugging workers, and ensure the correctness of the anti-misoperation lockout logic.
Description
Technical Field
The invention relates to a graphical expression method of an intelligent substation, in particular to a graphical expression method of anti-misoperation lockout logic of the intelligent substation.
Background
As an important construction link of an intelligent power grid, the intelligent transformer substation is built and put into operation by more than 1000 intelligent transformer substations of the national grid company at present. In order to prevent misoperation, a five-prevention operation rule of the transformer substation is specified, namely, the five-prevention operation rule is to prevent circuit breakers from being switched off and on by mistake, isolating switches from being switched off and on under load, grounding wires (grounding switches) from being hung (switched) in a charged state, circuit breakers (isolating switches) from being switched on by grounding wires (grounding switches) and from being switched on in a charged state, five kinds of error prevention of the error entering into a charged interval are prevented, the five kinds of error prevention can be divided into five kinds of station control layer prevention and five kinds of interval layer prevention, the five kinds of intelligent transformer substation interval layer prevention are realized by a measurement and control device positioned on an interval layer, and the five kinds of intelligent transformer substation interval layer prevention are realized by a measurement and control device positioned on the interval layer.
The five-prevention interlocking logic description file stored in the engineering configuration adopts a private description method for each manufacturer, and the description method is not standard. The description file formats are not consistent, common description files have file formats such as Word, Excel or AutoCAD, and some description files have logic equation expression modes; the anti-misoperation lockout logic in the station control layer system and the bay level measurement and control device is generally described in a text mode, contains complex semantics, is difficult to understand by non-professionals, and is not beneficial to reading, viewing and debugging test of the anti-misoperation lockout logic. Therefore, it is necessary to research a method for preventing the graphical expression of the anti-error logic.
In the document, "implementation of five-prevention blocking between intelligent substation compartments" (electrical engineering, 2014, 10: 18-19), interlocking information such as required opening positions and the like is acquired and transmitted across intervals by applying a GOOSE communication mode through an existing MMS network, and a subscription relationship is established through a model file. And the five-prevention function is realized by combining the flexible PLC logic of the device. The intelligent transformer substation five-prevention interlocking device mainly solves the application of the five-prevention interlocking function between the measurement and control and measurement and protection integrated devices, solves the new problem of mutual communication between the intelligent transformer substation interval devices and the trans-interval devices, and meets the requirements of communication and five-prevention of the intelligent transformer substation.
A visualization scheme is provided in the literature ' research and application of intelligent substation virtual circuit visualization scheme ' (power grid and clean energy, 2014,30(10): 32-37), the SCD file can be rapidly analyzed, drawings such as a single device virtual terminal graph, a device virtual circuit graph, a device logic link graph and a network structure graph are automatically output, and the problem that a virtual circuit in the SCD file cannot be seen and cannot be touched ' due to lack of visualization tools is solved.
The document "interval model-based diagram-library-rule-operation ticket automatic generation method" (power system automation, 2015,39(3): 84-89) proposes a scheme for automatically generating five-prevention rules and operation tickets, and the main idea is as follows: firstly, a typical interval model containing a typical primary interval and a typical secondary interval is established, and then methods for automatically generating a primary equipment wiring diagram-base, an anti-error rule and an operation ticket are respectively researched based on the model. The problem of artifical configuration five prevent antithetical couplet shutting rule consuming time inefficiency has mainly been solved.
In summary, research is currently carried out on the aspects of intelligent substation anti-misoperation locking, visualization and the like, the important contents of the research are that anti-misoperation locking logic rule automatic generation, intelligent substation interval and multi-interval anti-misoperation locking, an intelligent substation SCD file virtual loop visualization scheme and the like are carried out, but a graphical expression method is lacked for the intelligent substation interlocking logic relationship.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the graphical expression method of the intelligent substation anti-misoperation lockout logic, which realizes the visualization of the intelligent substation anti-misoperation lockout logic, improves the reading and checking efficiency of the anti-misoperation lockout logic, is favorable for saving the labor-consuming and time-consuming working cost of debugging and ensures the correctness of the anti-misoperation lockout logic.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
a method for expressing misoperation-preventive locking logic of an intelligent substation in a graphical mode comprises the following steps:
(1) progressively loading the interlocking rule file and scanning the rule content line by line;
(2) generating an anti-misoperation lockout logic tree;
(3) converting the interlocking logic relationship into a topological connection relationship;
(4) and graphically expressing the interlocking logic relationship.
Preferably, in step (1), the rule file includes a symbol dictionary part and a logical operation part, and includes the following steps:
step 1-1, loading a rule symbol dictionary part, and extracting dictionary description of a rule and a corresponding data name;
step 1-2, loading a rule symbol logic operation part, respectively extracting the operation object description, the operation type and the logic expression in the logic operation part, and taking out the operation devices in the logic expression one by one in a circulating mode.
Preferably, the data names are represented by IEC61850 index references, which are represented by common service interface ACSI, function constraints FC including data, control objects FCD, location and measurement data FCDA; the dictionary description and the corresponding data name are connected by a symbol ═ and the description and the name are extracted by a character comparison recognition method.
Preferably, the operation types include a combination operation and a division operation, and the logical expression includes a data description, a constant and an operator.
Preferably, in the step (2), the anti-misoperation lockout logic tree structure includes a root node, or a node, an and node, and a leaf node, where the root node corresponds to the initial logic expression and is an anti-misoperation logic object; the OR node represents the relation of logical OR between nodes on the same layer; the AND node represents the relation of logical AND between nodes on the same layer; the leaf node is a node which represents that the node can not be decomposed any more, namely, the expression does not contain an AND or operator, and the corresponding expression is also called an atomic expression; the priority of the logic tree specifies that all the connection words on the same level are of the same priority and operate according to the sequence, but the priority in brackets is higher than the priority outside the brackets, and the brackets are used for adjusting the operation sequence of the expression on the corresponding storage structure, namely, the higher the priority of the deeper level is.
Preferably, in the step (3), the priority of the topological connection relationship is: the terminal of the topological connection has the lowest priority, the higher the priority is the farther the terminal is away from the terminal, and the priority of the starting end of the topological connection is the highest; and establishing a mapping relation between the final output signal and the first input signal in the logical relation at the end point and the starting point in the topological connection relation respectively to realize the conversion of the topological relation.
Preferably, in the step (4), the graphical representation describes a graph by using an interlocking logic language conforming to an XML rule; the logical relationship is converted into a graphical representation which comprises two parts of equipment information and graphical information.
Preferably, the dictionary part of the graphic expression device information is generated by converting description information and name information of device dictionary information in the association rule file, and the graphic expression device information includes: name, description, Reference and unique identification ID of switch, earthing switch.
Preferably, the content of the graphical representation graphics information includes primitive information, connection relations and logic signal values, and the primitive information includes signal primitive information and logic primitive information; the graphical expression is divided into two forms of coordinates with a coordinate and a cloth belt coordinate, and if the graphical expression does not have the coordinate, the x axis and the y axis of the coordinate are both-1.
Preferably, the signal primitive of the graphical representation comprises an output or input terminal and signal text description information; the logic graphic elements of the graphical expression are AND, OR, NOT logic relations and output and input terminals participating in logic operation, and are generated in an automatic creation mode; the connection relation of the graphical expression is used for describing the connection relation among various nodes; the logic signal value of the graphical expression is 0 and 1, wherein 0 represents that the position is separated, and 1 represents that the position is closed; the connection relation in the imaging is obtained by adopting a mapping conversion method for logical relation topology; the logic signal value in the graphic is generated by the logic value conversion in the logic relation.
Compared with the prior art, the invention has the beneficial effects that:
the method realizes the visualization of the intelligent substation anti-misoperation lockout logic, shields the complicated logic relation semantics and the coincidence description of the logic file, facilitates the operation and maintenance, debugging and other business personnel to check the anti-misoperation lockout logic relation, and avoids the defect of excessively depending on equipment manufacturers at present. Meanwhile, the method can be further used for improving the reading and checking efficiency of the anti-misoperation lockout logic, is favorable for saving the time-consuming and labor-consuming working cost of debugging workers, and ensures the correctness of the anti-misoperation lockout logic.
Drawings
FIG. 1 is a flow chart of a method for graphically expressing misoperation-preventive locking logic of an intelligent substation provided by the invention
FIG. 2 is a block diagram of a logic tree provided by the present invention
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention provides a graphical expression method for intelligent substation anti-misoperation lockout logic, which realizes the visualization of the intelligent substation anti-misoperation lockout logic, shields the complex logic relation semantics and coincidence description of logic files, facilitates operation and maintenance, debugging and other business personnel to check the anti-misoperation lockout logic relation, and avoids the defect of excessively depending on equipment manufacturers at present. Meanwhile, the method can be further used for the automatic closed-loop test of the anti-misoperation lockout logic graph, the test efficiency is improved, the time-consuming and labor-consuming working cost of debugging labor is saved, and the correctness of the anti-misoperation lockout logic is favorably ensured.
The intelligent substation misoperation prevention logic follows the standard of substation monitoring system technical specification for preventing electrical misoperation, and comprises station control layer logic and bay layer logic, and the logic of the station control layer logic and the bay layer logic is consistent. The rule file is mainly composed of two parts: a symbol dictionary part and an operation rule part. The symbol dictionary mainly defines data related in the anti-error rule, and is convenient to use in the rule; the operation rule part is the arrangement of the control rules of each operation object.
As shown in fig. 1, the invention provides a method for expressing misoperation-preventive locking logic of an intelligent substation in a graphical manner, which comprises the following specific steps:
step 1, progressively loading an interlocking rule file, and scanning rule contents line by line;
loading the interlock locking rule file, progressively loading, and scanning the rule contents line by line
And loading the rule symbol dictionary part, and extracting the dictionary description and the corresponding data name of the rule.
The data name is consistent with the data name in the intelligent substation monitoring system database, the intelligent substation monitoring system data is automatically generated by an information model imported into IEC61850, an IEC61850 index reference of the data is adopted in the monitoring system database to represent the data name, the reference adopts a representation mode of a general service interface ACSI and comprises a Function Constraint (FC) of the data, a control object is represented by an FCD, and position and measurement data are represented by an FCDA.
For example, the data name of the control object may be expressed as: CB2011CTRL/QGCSWI 1.Pos [ CO ]; the data name of the location information may be expressed as: CB2011CTRL/QGCSWI 1.Pos.stVal [ ST ]; the data name of the measurement information may be expressed as: CB2011MEAS/q0mmxu2.phv. phsa. cval. mag. f [ MX ].
The data name expression is compatible with a non-intelligent substation transformer substation adopting a network DL/T667 (IEC 60870-5-103) communication protocol, and the data name expression mode is as follows: interval address + data type + data sequence number.
For example, for control object information, the data name may be expressed as: bayxx. doyy; for remote signaling information, the data name may be expressed as: bayxx. diyy; for telemetry, the data name may be expressed as: bayxx.
The dictionary description and the corresponding data name of the rule are connected by a symbol ═ and the description and the name are extracted by a character comparison and recognition method;
and loading a rule symbol logic operation part, and respectively extracting the operation object description, the operation type and the logic expression in the logic operation part.
The extraction operation object description is defined in a symbol dictionary;
the extraction operation types are mainly combined operation and sub-operation types
For example, the combined operating rule of 20211 disconnecting switches is expressed as follows:
20211CTL { combined operation }: ((201114 ═ 1) & (2011 ═ 1) & (201123 ═ 1) & (2113 ═ 1) & (2125 ═ 1))
The extraction logic expression is composed of data description (desc), constants and operators defined in the symbol dictionary.
The extraction adopts symbols respectively: () - { },: and the like, the operation devices in the logic expression are taken out one by one in a loop mode.
Extracting the logical operation state quantity and quantity measurement and the logical relationship participating in the operation in the extraction logical expression, wherein the logical relationship comprises: and, or not.
Step 2, generating an anti-misoperation lockout logic tree;
generating an anti-misoperation lockout logic tree structure comprising a root node, an OR node, an AND node and a leaf node;
the root node corresponds to the initial logic expression and is an anti-error logic object;
the OR node represents the relation of logical OR between nodes on the same layer;
the AND node represents the logical AND relationship between nodes on the same layer, and the root node can be regarded as the AND node for convenient processing;
the leaf node is a node which represents that the decomposition can not be performed any more, that is, the expression does not contain an and or operator, and the corresponding expression is also called an atomic expression.
The priority of the logic tree specifies that all the connection words on the same level are of the same priority and operate according to the sequence, but the priority in brackets is higher than the priority outside the brackets, and the higher the priority of the deeper level is on the corresponding storage structure, the brackets can be used for adjusting the operation sequence of the expression.
The leaf nodes in the logical tree are defined in the symbol dictionary and participate in logical operation.
Attributes such as state quantity, name and description of the object of the logical operation are defined in the data structure of the leaf nodes in the logical tree.
For example: logic expression: y ═ a & b & c | (d | e) & f +! g, the logical tree is expressed as shown in fig. 2, and the deeper the hierarchical depth of the tree in the logical tree in the figure, the higher the priority.
Step 3, the interlocking logic is converted into a topological connection relation;
and converting the logic into a topological connection relation, and converting the logic relation into a topological connection relation expression.
The topological relation end point is as follows: the final output signal in the logic.
The starting point of the topological relation: the first input signal in the logic.
The topological relation priority: the terminal of the topological connection has the lowest priority, the higher the priority is the farther the terminal is away from the terminal, and the priority of the starting end of the topological connection is the highest.
The topological relation conversion comprises priority, input signals and output signals in the logical relation.
The final output signal and the first input signal in the logical relation respectively establish a mapping relation at the end point and the starting point in the topological relation to realize the conversion of the topological relation;
and the priority in the logical relationship realizes the conversion of the priority of the topological relationship through the distance between the node and the terminal.
And 4, graphically expressing the interlocking logic relationship.
The graphic expression of the logical relationship refers to the graphic description specification of the power system of Q/GDW624-2011, and the graphic is described by adopting an interlocking logic language conforming to XML rules.
The logical relation is converted into a graphic content comprising two parts of equipment information and graphic information.
The logical relationship graphical topology is generated by the logical relationship topological connection relationship.
The dictionary part of the logic relation graphic equipment information is generated by converting the description, the name and other information of the equipment dictionary information in the corresponding logic locking rule file;
the graphic expression device information includes: names, descriptions, references, unique identification IDs and the like of switches, disconnecting links and grounding switches;
the graphic information of the graphic expression is the description of a specific graphic, and the main contents comprise: primitive information, connection relation, logic signal value; the primitive information includes signal primitives and logical primitives.
The graphical expression can be divided into two forms of coordinates and non-coordinates, if the coordinates are not carried out, the x axis and the y axis of the coordinates are both-1;
the graphical expression signal primitive definition comprises the following steps: comprises an output or input terminal, signal text description information;
the graphical expression logic primitive definition comprises the following steps: and, or, not logical relations and output and input terminals participating in logical operations;
the graphical expression logic graphic primitive is generated in an automatic creation mode;
the graphical expression connection relation definition comprises: the method is used for describing the connection relationship among various nodes;
the graphically expressed logic signal values define: 0 and 1, wherein 0 represents the position apart and 1 represents the position closed;
the connection relation in the imaging is obtained by adopting a mapping conversion method for logical relation topology; the logic signal value in the graphic is generated by the logic value conversion in the logic relation;
the graphic expression file can be opened by a browser supporting Q/GDW624-2011 electric power system graphic description specification.
The expression format of the anti-misoperation lockout logic graphic file is shown as follows:
finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (8)
1. A method for expressing misoperation-preventive locking logic of an intelligent substation in a graphical mode is characterized by comprising the following steps:
(1) adopting progressive loading anti-misoperation locking rule files to scan rule contents line by line;
(2) generating an anti-misoperation lockout logic tree;
(3) converting the anti-misoperation lockout logical relationship into a topological connection relationship;
(4) graphically expressing the anti-misoperation lockout logical relation;
in the step (4), the graphic expression adopts an interlocking logic language following XML rules to describe a graph; the logical relation is converted into a graphical expression containing two parts of equipment information and graphical information; in the step (1), the rule file includes a symbol dictionary part and a logic operation part, and includes the following steps:
step 1-1, loading a rule symbol dictionary part, and extracting dictionary description of a rule and a corresponding data name;
step 1-2, loading a rule symbol logic operation part, respectively extracting the operation object description, the operation type and the logic expression in the logic operation part, and taking out the operation devices in the logic expression one by one in a circulating mode.
2. The method according to claim 1, characterized in that the data names are represented by IEC61850 index references, which are represented by common service interface ACSI, function constraints FC containing data, control objects FCD, location and measurement data FCDA; the dictionary description and the corresponding data name are connected by a symbol ═ and the description and the name are extracted by a character comparison recognition method.
3. The method of claim 1, wherein the operation types include a join operation and a divide operation, and wherein the logical expressions include data descriptions, constants, and operators.
4. The method according to claim 1, wherein in the step (2), the anti-mislocking logic tree structure includes a root node, or a node, an and node, and a leaf node, and the root node is corresponding to the initial logic expression and is an anti-mislocking logic object; the OR node represents the relation of logical OR between nodes on the same layer; the AND node represents the relation of logical AND between nodes on the same layer; the leaf node is a node which represents that the node can not be decomposed any more, namely, the expression does not contain an AND or operator, and the corresponding expression is also called an atomic expression; the priority of the logic tree specifies that all the connection words on the same level are of the same priority and operate according to the sequence, but the priority in brackets is higher than the priority outside the brackets, and the brackets are used for adjusting the operation sequence of the expression on the corresponding storage structure, namely, the higher the priority of the deeper level is.
5. The method according to claim 1, wherein in the step (3), the priority of the topological connection relationship is: the terminal of the topological connection has the lowest priority, the higher the priority is the farther the terminal is away from the terminal, and the priority of the starting end of the topological connection is the highest; and establishing a mapping relation between the final output signal and the first input signal in the logical relation at the end point and the starting point in the topological connection relation respectively to realize the conversion of the topological relation.
6. The method of claim 1, wherein the dictionary part of the graphical representation device information is generated by converting description information and name information of device dictionary information in a corresponding association rule file, and the graphical representation device information comprises: name, description, Reference and unique identification ID of switch, earthing switch.
7. The method of claim 1, wherein the content of the graphically expressed graphics information comprises primitive information, connection relationships, and logical signal values, and wherein the primitive information comprises signal primitive information and logical primitive information; the graphical expression is divided into two forms of coordinates with a coordinate and a cloth belt coordinate, and if the graphical expression does not have the coordinate, the x axis and the y axis of the coordinate are both-1.
8. The method of claim 7, wherein the signal primitive of the graphical representation comprises an output or input terminal, signal text description information; the logic graphic elements of the graphical expression are AND, OR, NOT logic relations and output and input terminals participating in logic operation, and are generated in an automatic creation mode; the connection relation of the graphical expression is used for describing the connection relation among various nodes; the logic signal value of the graphical expression is 0 and 1, wherein 0 represents that the position is separated, and 1 represents that the position is closed; the connection relation in the imaging is obtained by adopting a mapping conversion method for logical relation topology; the logic signal value in the graphic is generated by the logic value conversion in the logic relation.
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| CN108549650B (en) * | 2018-02-28 | 2022-10-11 | 中国电力科学研究院有限公司 | Intelligent substation anti-misoperation lockout logic rule source end configuration method and system |
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