CN107203649A - One kind visualization SCD Protection secondary circuit Correctness checking systems and inspection method - Google Patents

Abstract

The invention relates to a visual SCD protection secondary circuit correctness checking system and checking method. The inspection system includes an SCD analysis module and a design template module respectively connected with the human-computer interaction unit. The SCD analysis module analyzes the SCD and establishes a protection secondary system virtual circuit model; the design template module designs the protection secondary circuit design template; the inspection system also includes The visual display module and the circuit comparison module obtain the protection secondary system virtual circuit model and the protection secondary circuit design template respectively; the visual display module visually displays the protection secondary system virtual circuit model; the circuit comparison module forms the protection secondary system The comparison document between the virtual circuit model and the protection secondary circuit design template; the human-computer interaction unit calls the comparison document, and judges the correctness of the SCD protection secondary circuit according to the consistency of its parameters. Compared with the prior art, the invention has the advantages of simple structure, high inspection efficiency and high reliability.

Description

A visual SCD protection secondary circuit correctness checking system and checking method

technical field

The invention relates to an SCD protection secondary circuit correctness checking system and checking method, in particular to a visual SCD file correctness checking system and checking method.

Background technique

The intelligent substation automation system is based on the IEC61850 system, and uses the system configuration file SCD (System Configuration Description) to describe the secondary system of the intelligent substation. Since the SCD file is a description file based on the XML language, there is a fundamental difference in the representation of the protection secondary circuit schematic diagram from the conventional substation. In this way, it is very difficult for technicians to check the correctness of the SCD through the professional knowledge of the relay protection secondary system. In actual engineering applications, the SCD file is often incorrect, but the problem of protecting the secondary circuit cannot be found manually, which brings hidden dangers to the safe operation of the smart substation.

Contents of the invention

The purpose of the present invention is to provide a visual SCD protection secondary circuit correctness checking system and checking method in order to overcome the above-mentioned defects in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

A visual SCD protection secondary circuit correctness inspection system, connected to the human-computer interaction unit of the background system, the inspection system includes an SCD analysis module, a design template module, a visual display module and a circuit comparison module;

SCD analysis module, design template module: respectively connected with the human-computer interaction unit; the SCD analysis module obtains the SCD file from the human-computer interaction unit and analyzes it, thereby establishing a protection secondary system virtual circuit model; The design template module obtains the substation protection secondary circuit design rules from the human-computer interaction unit, and determines the protection secondary circuit design template according to the rules;

Visual display module and circuit comparison module: respectively connect the human-computer interaction unit, SCD analysis module and design template module, and correspondingly obtain the virtual circuit model of the protection secondary system and the design template of the protection secondary circuit; the visual display module establishes the protection The relationship between the virtual circuit model of the secondary system and the elements in the design template of the protection secondary circuit forms a visual display graph of the virtual circuit model of the protection secondary system, and sends it to the human-computer interaction unit for display; the circuit comparison module Compare the protection secondary system virtual circuit model with the protection secondary circuit design template, form a comparison document and save it;

The human-computer interaction unit calls the comparison document from the circuit comparison module. If the protection secondary system virtual circuit model in the comparison document is consistent with the parameters in the protection secondary circuit design template, the SCD file is correct, otherwise there is an error.

The SCD parsing module includes an SCD acquisition unit and a model parsing unit;

The SCD acquisition unit is connected to the human-computer interaction unit and reads the SCD file;

The model analysis unit adopts SCL tag search technology to analyze and save the protection secondary system virtual circuit model from the SCD file, and the protection secondary system virtual circuit model is based on the static state of the protection device GOOSE secondary circuit and the virtual terminal. Model.

The design template module includes a design rule unit and a design template unit;

The design rule unit obtains the substation protection secondary circuit design rules from the human-computer interaction unit to form the input and output specifications of the secondary circuit;

The design template unit design generates and saves a protection secondary circuit design template conforming to the input and output specifications of the secondary circuit.

The protection secondary circuit design template includes multiple templates, and each template corresponds to a corresponding protection device.

The visual display module includes a graphic mapping unit and a graphic display unit;

The graphic mapping unit obtains the virtual circuit model of the protection secondary system and the design template of the protection secondary circuit, and establishes the relationship between the virtual circuit model of the protection secondary system and the elements in the design template of the protection secondary circuit by using graphic model mapping technology;

The graphic display unit converts the association relationship into a visual display graphic, and sends it to the human-computer interaction unit for display.

The loop comparison module includes a data calling unit and a loop comparison unit;

The data calling unit calls the corresponding protection secondary circuit design template and protection secondary system virtual circuit model according to the input command of the human-computer interaction unit;

The circuit comparison unit compares the invoked protection secondary circuit design template and the virtual circuit model of the protection secondary system, obtains a comparison document and saves it.

A visual SCD protection secondary circuit correctness checking method, the method includes the following steps:

(1) The SCD analysis module reads the SCD file, uses the SCL tag search technology to analyze the SCD file and establishes the protection secondary system virtual circuit model;

(2) The design template module is based on the substation protection secondary circuit design rules to design and generate multiple protection secondary circuit design templates corresponding to different protection devices;

(3) The visual display module adopts graph-model mapping technology to establish the relationship between the virtual circuit model of the protection secondary system and the elements in the design template of the protection secondary circuit, forms a visual display graph of the virtual circuit model of the protection secondary system, and sends it to the personnel Computer interaction unit for display;

(4) The circuit comparison module invokes the protection secondary system virtual circuit model and the protection secondary circuit design template of the corresponding protection device according to the instructions of the human-computer interaction unit, compares the two to obtain a comparison document and saves it;

(5) The human-computer interaction unit calls the comparison document to manually judge the correctness of the SCD file. If the protection secondary system virtual circuit model in the comparison document is consistent with the parameters in the protection secondary circuit design template, the SCD file is correct, otherwise there is an error.

Compared with prior art, the present invention has following advantage:

(1) Compare the protection secondary system virtual circuit model established based on the SCD file with the protection secondary circuit design template determined by the substation protection secondary circuit design rules to form a comparison document, and judge the secondary virtual circuit by calling the comparison document The consistency between the circuit model and the protection secondary circuit design template completes the inspection of the SCD protection secondary circuit, which is highly efficient;

(2) The comparison document is displayed through the human-computer interaction unit, which is intuitive and reliable, and corresponding corrective operations can be made in time through the inspection results to avoid hidden dangers in the operation of the secondary system of the smart substation;

(3) The visual display module can display the virtual circuit model of the substation protection secondary system, which can help the staff to intuitively understand the connection relationship of the protection secondary circuit in the substation system, and solve the problem that the secondary system of the smart substation becomes a "black box". .

Description of drawings

Fig. 1 is the structural representation of the correctness checking system of the visual SCD protection secondary circuit of the present invention;

Fig. 2 is a flow chart of SCD correctness check by using the visual SCD protection secondary circuit correctness check system in the present invention.

In the figure, 1 is the human-computer interaction unit, 2 is the SCD analysis module, 3 is the design template module, 4 is the visual display module, and 5 is the circuit comparison module.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

As shown in Figure 1, a visual SCD protection secondary circuit correctness inspection system is connected to the human-computer interaction unit 1 of the background system. The inspection system includes an SCD analysis module 2, a design template module 3, a visual display module 4 and a circuit Compare module 5. SCD analysis module 2, design template module 3: respectively connected with the human-computer interaction unit 1; the SCD analysis module 2 obtains and analyzes the SCD file from the human-computer interaction unit 1, thereby establishing a protection secondary system virtual circuit Model; the design template module 3 obtains the substation protection secondary circuit design rule from the human-computer interaction unit 1, and determines the protection secondary circuit design template according to the rule; the substation protection secondary circuit design rule described here includes << General Design of Substation Engineering" and application principles of secondary circuit protection. The visual display module 4 and the circuit comparison module 5 are respectively connected to the human-computer interaction unit 1, the SCD analysis module 2 and the design template module 3, and correspondingly obtain the protection secondary system virtual circuit model and protection from the SCD analysis module 2 and design template module 3. Secondary circuit design template; described visual display module 4 establishes the association relationship between the elements in the protection secondary system virtual circuit model and the protection secondary circuit design template, forms the visual display graphics of the protection secondary system virtual circuit model, and sends To the human-computer interaction unit 1 for display; the circuit comparison module 5 compares the protection secondary system virtual circuit model with the protection secondary circuit design template, forms a comparison document and saves it; Call the comparison document described in module 5, if the protection secondary system virtual circuit model in the comparison document is consistent with the parameters in the protection secondary circuit design template, the SCD file is correct, otherwise there is an error.

The SCD analysis module 2 includes an SCD acquisition unit and a model analysis unit; the SCD acquisition unit is connected to the human-computer interaction unit 1 and reads the SCD file; the model analysis unit adopts SCL tag search technology to resolve from the SCD file The virtual circuit model of the protection secondary system is obtained and saved, and the virtual circuit model of the protection secondary system is a static model based on the secondary circuit and virtual terminals of the protection device GOOSE. The virtual circuit model of the protection secondary system is a model that only contains all the information related to the virtual circuit of the protection device, including the definition of GOOSE control block, the definition of Extref, the definition of data sets in the definition of GOOSE control block, etc. Also search for SCL tags, such as: IED tag category: <IED, >, </IED>, Inputs tag category: <Inputs, >, </Inputs>, />, GSEcontrol tag category: <GSEControl, >, </GSEControl >, LD tag category: <LDevice, >, </LDevice>, />, LN tag category: <LN, >, </LN>, />, Dataset tag category: <DataSet, >, </DataSet>, /> etc.

The design template module 3 includes a design rule unit and a design template unit; the design rule unit obtains the substation protection secondary circuit design rules from the human-computer interaction unit 1 to form a secondary circuit input and output specification; the design template unit Design generates and saves a protection secondary circuit design template that conforms to the input and output specifications of the secondary circuit. The protection secondary circuit design template includes multiple templates, and each template corresponds to a corresponding protection device. The protection devices mentioned here include line, transformer, busbar and circuit breaker protection and so on.

The visual display module 4 includes a graphic mapping unit and a graphic display unit; the graphic mapping unit obtains the protection secondary system virtual circuit model and the protection secondary circuit design template, and adopts the graphic model mapping technology to establish the protection secondary system virtual circuit The relationship between the model and the elements in the protection secondary circuit design template; the graph-model mapping technology described here refers to the establishment of the elements in the graph, the association between elements, the dynamic value and the objects in the model, and the model relationship between objects And the one-to-one correspondence between the data states in the model. The graphic display unit converts the association relationship into a visual display graphic and sends it to the human-computer interaction unit 1 for display.

The circuit comparison module 5 includes a data call unit and a circuit comparison unit; the data call unit calls the corresponding protection secondary circuit design template and protection secondary system virtual circuit model according to the input command of the human-computer interaction unit 1; The circuit comparison unit compares the invoked protection secondary circuit design template and the virtual circuit model of the protection secondary system, obtains a comparison document and saves it.

As shown in Figure 2, it is the checking method for using the above-mentioned visual SCD file correctness check system to check the correctness of the SCD file, the method includes the following steps:

Step S100 is executed: the SCD analysis module 2 reads the SCD file, uses the SCL tag search technology to analyze the SCD file and establishes a protection secondary system virtual circuit model;

Execute step S200: the design template module 3 designs and generates multiple protection secondary circuit design templates corresponding to different protection devices based on the substation protection secondary circuit design rules;

Execution step S300: Visual display module 4 adopts graphic model mapping technology to establish the relationship between the virtual circuit model of the protection secondary system and the elements in the design template of the protection secondary circuit, forms a visual display graph of the virtual circuit model of the protection secondary system, and sends Go to Human-Computer Interaction Unit 1 for display;

Execute step S400: the circuit comparison module 5 invokes the protection secondary system virtual circuit model and the protection secondary circuit design template of the corresponding protection device according to the instruction of the human-computer interaction unit 1, compares the two to obtain a comparison document and saves it;

Execute step S500: the human-computer interaction unit 1 invokes the comparison document to manually judge the correctness of the SCD file. If the protection secondary system virtual circuit model in the comparison document is consistent with the parameters in the protection secondary circuit design template, the SCD file is correct, otherwise it exists mistake.

Claims (7)

1. A visual SCD protection secondary loop correctness inspection system, connected to the human-computer interaction unit (1) of the background system, is characterized in that, the inspection system includes an SCD analysis module (2), a design template module (3), Visual display module (4) and circuit comparison module (5); SCD analysis module (2), design template module (3): connect with described human-computer interaction unit (1) respectively; Described SCD analysis module (2) obtains SCD file from human-computer interaction unit (1) and carries out Analyzing, thereby setting up the protection secondary system virtual circuit model; Described design template module (3) obtains substation protection secondary circuit design rule from human-computer interaction unit (1), and determines protection secondary circuit design template according to this rule; Visual display module (4), circuit comparison module (5): respectively connect the human-computer interaction unit (1), SCD analysis module (2) and design template module (3), and obtain the protection secondary system virtual circuit model and Protection secondary circuit design template; described visual display module (4) establishes the relationship between the protection secondary system virtual circuit model and the elements in the protection secondary circuit design template, forming a visual display graph of the protection secondary system virtual circuit model , and sent to the human-computer interaction unit (1) for display; the circuit comparison module (5) compares the protection secondary system virtual circuit model with the protection secondary circuit design template, forms a comparison document and saves it; The human-computer interaction unit (1) calls the comparison document from the circuit comparison module (5), if the protection secondary system virtual circuit model in the comparison document is consistent with the parameters in the protection secondary circuit design template, the SCD file is correct , otherwise an error exists. 2. a kind of visual SCD protection secondary circuit correctness checking system according to claim 1, is characterized in that, described SCD analysis module (2) comprises SCD acquisition unit and model analysis unit; The SCD acquisition unit is connected to the human-computer interaction unit (1) and reads the SCD file; The model analysis unit adopts SCL tag search technology to analyze and save the protection secondary system virtual circuit model from the SCD file, and the protection secondary system virtual circuit model is based on the static state of the protection device GOOSE secondary circuit and the virtual terminal. Model. 3. a kind of visual SCD protection secondary circuit correctness inspection system according to claim 1, is characterized in that, described design template module (3) comprises design rule unit and design template unit; The design rule unit obtains the substation protection secondary circuit design rules from the human-computer interaction unit (1) to form a secondary circuit input and output specification; The design template unit design generates and saves a protection secondary circuit design template conforming to the input and output specifications of the secondary circuit. 4. A visual SCD protection secondary circuit correctness checking system according to claim 1 or 3, characterized in that, said protection secondary circuit design templates include a plurality, and each template corresponds to a corresponding protection device. 5. a kind of visual SCD protection secondary circuit correctness checking system according to claim 1, is characterized in that, described visual display module (4) comprises graphic mapping unit and graphic display unit; The graphic mapping unit obtains the virtual circuit model of the protection secondary system and the design template of the protection secondary circuit, and establishes the relationship between the virtual circuit model of the protection secondary system and the elements in the design template of the protection secondary circuit by using graphic model mapping technology; The graphic display unit converts the association relationship into a visual display graphic, and sends it to the human-computer interaction unit (1) for display. 6. A kind of visual SCD protection secondary loop correctness checking system according to claim 1, is characterized in that, described loop comparison module (5) comprises data calling unit and loop comparison unit; The data calling unit calls the corresponding protection secondary circuit design template and protection secondary system virtual circuit model according to the input command of the human-computer interaction unit (1); The circuit comparison unit compares the invoked protection secondary circuit design template and the virtual circuit model of the protection secondary system, obtains a comparison document and saves it. 7. A method for checking the correctness of SCD files using the visual SCD protection secondary circuit correctness checking system according to any one of claims 1 to 6, characterized in that the method comprises the steps of: (1) SCD analysis module (2) Read the SCD file, use SCL tag search technology to analyze the SCD file and establish a protection secondary system virtual circuit model; (2) Design template module (3) Design and generate multiple protection secondary circuit design templates corresponding to different protection devices based on substation protection secondary circuit design rules; (3) Visual display module (4) Establish the relationship between the virtual circuit model of the protection secondary system and the elements in the design template of the protection secondary circuit by using the graphic model mapping technology to form a visual display graph of the virtual circuit model of the protection secondary system, and Send to the human-computer interaction unit (1) for display; (4) Circuit comparison module (5) Call the protection secondary system virtual circuit model and the protection secondary circuit design template of the corresponding protection device according to the instructions of the human-computer interaction unit (1), compare the two to obtain a comparison document and save it ; (5) Human-computer interaction unit (1) Call the comparison document to manually judge the correctness of the SCD file. If the protection secondary system virtual circuit model in the comparison document is consistent with the parameters in the protection secondary circuit design template, the SCD file is correct, otherwise There is an error.