CN102043719B - Method for testing IEC61850 configuration description file - Google Patents

Abstract

The invention relates to a method for testing IEC61850 configuration description files, which is suitable for digital substations and intelligent substations using IEC61850 communication. It is realized by configuration file analysis module, linked list storage and memory release module, standard data template file and verification module. The specific steps are as follows: first, load the IEC61850 configuration description file into the computer memory to form a DOM tree, and then store the specific node information in the memory tree into the linked list data structure; Various comparisons are performed on the element information of the configuration description file; if the requirements are not met, an alarm is issued, and the type of error and its specific position in the configuration description file are output; the test results are saved in a text file. The advantage of the present invention is that it can automatically test whether the configuration description file meets the requirements stipulated by the standard.

Description

A Method of Testing IEC61850 Configuration Description File

technical field

The invention relates to a method for testing the IEC61850 configuration description file, which is used to test whether the IEC61850 configuration description file meets the requirements of "DL/T 860 Implementation Technical Specification" and "IEC61850 Engineering Relay Protection Application Model", and is suitable for adopting IEC61850 Communication digital substation and smart substation.

Background technique

The IEC61850 configuration description file is the basis for the realization of the functions of the intelligent substation automation system. Due to the complex syntax of the configuration description file and the large amount of information, a series of legality and normative problems are likely to occur in engineering applications. In addition, various human errors are inevitable during the configuration process, so strict testing is required. Due to the complexity and diversity of the problems in the configuration description file, it is impossible to find all of them by manpower, and only special tools (that is, test methods) can be relied on. Currently, there are many tools capable of verifying the configuration description file, such as SCL Checker of KEMA, IEDScout of OMICRON, and XMLSpy of Altova. Although these tools are mature, their test functions are incomplete, especially for the recently promulgated "DL/T 860 Implementation Technical Specifications" and "IEC61850 Engineering Relay Protection Application Model", which have no test capabilities and cannot meet the needs of actual engineering tests. In actual engineering, some of the configuration description file tests can only be performed by manual verification, which is not only inefficient but also error-prone. There is an urgent need for a localized and fully functional testing tool in engineering applications to avoid manual verification.

Contents of the invention

The technical problem to be solved by the invention is to provide a method for testing the IEC61850 configuration description file with complete functions.

The technical solution adopted by the present invention to solve its technical problems:

The present invention is concretely realized by configuration file analysis module, linked list storage and memory release module, standard data template file and verification module, and its steps are as follows:

(1) Test and analyze the IEC61850 configuration description file through the configuration file analysis module:

Use the DOM interface of Microsoft MSXML 4.0 to realize the analysis of the IEC61850 configuration description file; use the DOM interface to read the XML document, and construct a data tree in memory; use the API interface function of MSXML 4.0 to add, edit, move or delete A node anywhere in the DOM tree;

(2) Use linked list storage and memory release module to store and release: according to the IEC61850 standard, set the corresponding linked list structure according to the definition of the IEC61850 configuration description file; The linked list is a tree structure;

After the IEC61850 configuration description file is parsed into the memory, the data of the node with the specified data type in the memory tree is extracted and stored in the linked list data structure, which is used for the test function to access specific information in the IEC61850 configuration description file; in order to avoid program exit When a memory leak occurs, the memory release function of the linked list is used to manually release the nodes one by one;

(3) Use the standard data template file to store the 55 DOTypes, 15 DATypes and 19 EnumTypes uniformly defined in the standard "IEC61850 Engineering Relay Protection Application Model"; to check whether the data type template of the IEC61850 configuration description file conforms to the "IEC61850 Engineering Relay Protection Application Model"; The definition of Appendix D of Relay Protection Application Model; the standard data template file is in XML format;

(4) Use the verification module to verify the element information of the IEC61850 configuration description file stored in the linked list, and if it does not meet the requirements, alarm, and output the wrong type and the index of the target element in the IEC61850 configuration description file.

The beneficial effect of the present invention is that it can test "DL/T 860 Implementation Technical Specification" and "IEC61850 Engineering Relay Protection Application Model", and automatically test whether the IEC61850 configuration description file meets the requirements of the above two domestic standards, and its testing function is complete .

Description of drawings

Fig. 1 is a work flow chart of the present invention;

Fig. 2 is a schematic diagram of the linked list data structure storing IEC61850 configuration description file IED part information;

Figure 3 is a work flow chart of memory release for a linked list (assuming that the linked list head pointer is Head);

Fig. 4 is the flow chart of the BDA comparison program in DAType;

Figure 5 is a screenshot of the IEC61850 configuration description file test for the CSC103 line protection device.

Detailed ways

This embodiment is specifically realized by the configuration file parsing module, linked list storage and memory release module, standard data template file and verification module, and its steps are as follows:

(1) Test and analyze the IEC61850 configuration description file through the configuration file analysis module:

Use the DOM interface of Microsoft MSXML 4.0 to realize the analysis of the IEC61850 configuration description file; use the DOM interface to read the XML document, and construct a data tree in memory; use the API interface function of MSXML 4.0 to add, edit, move or delete A node anywhere in the DOM tree;

(2) Use linked list storage and memory release module to store and release: according to the IEC61850 standard, set the corresponding linked list structure according to the definition of the IEC61850 configuration description file; The linked list is a tree structure (see Figure 2, Figure 2 is a schematic diagram of the data structure of the linked list storing the information of the IED part of the configuration description file);

After the IEC61850 configuration description file is parsed into the memory, the data of the node with the specified data type in the memory tree is extracted and stored in the linked list data structure, which is used for the test function to access specific information in the IEC61850 configuration description file; in order to avoid program exit When a memory leak occurs, use the linked list memory release function to manually release the nodes one by one; see Figure 3, Figure 3 is a work flow chart of memory release for a linked list (assuming the head pointer of the linked list is Head);

(3) Use the standard data template file to store the 55 DOTypes, 15 DATypes and 19 EnumTypes defined in the standard "IEC61850 Engineering Relay Protection Application Model"; There is no need to modify the test source program if the regulation of the data type template changes, and only need to modify the standard data template file to adapt to the new standard. It is used to check whether the data type template of the IEC61850 configuration description file conforms to the definition in Appendix D of "IEC61850 Engineering Relay Protection Application Model"; the standard data template file is in XML format;

(4) Verification module: The verification module is the core part of the test tool. By operating the pointers of the linked list nodes, various verifications are performed on the element information of the IEC61850 configuration description file stored in the linked list (for example, checking whether the communication IP address is repeated, that is, Compare the uniqueness of the nodes storing IP parameters in the linked list); if the requirements are not met, an alarm will be issued, and the wrong type and the index of the target element in the configuration file will be output.

The workflow of this embodiment is as follows:

First load the IEC61850 configuration description file into the computer memory to form a DOM tree, and then store the specific node information in the memory tree into the linked list data structure; by operating the pointer of the linked list node, the IEC61850 configuration description file stored in the linked list Perform various comparisons of element information; if it does not meet the requirements, an error alarm will be issued, and the type of error and its specific location in the IEC61850 configuration description file will be output; the test results will be saved in a text file; The memory is released, and the specific workflow is shown in Figure 1.

Below is an application example of this embodiment:

In the commissioning of a 220KV digital substation, this test method was used to test the IEC61850 configuration description file of the CSC103 line protection device, and various errors were found. The test results are shown in Figure 5.

The following only uses the data type template consistency comparison as an example to illustrate this process:

First parse the IEC61850 configuration description file and store it in the linked list, then read the standard data template file into the computer memory DOM tree, call the getElementsByTagName ( ) function in MSXML 4.0 to extract the set of nodes of the specified data type (such as all DAType nodes ), compare each node with the DAType of the IEC61850 configuration description file saved in the linked list one by one, and alarm if there is any difference. The comparison process of DOType and EnumType is roughly similar to DOType.

When comparing the BDA sub-elements contained under DAType, a two-way comparison is adopted. The first step uses the IEC61850 configuration description file stored in the linked list as a reference, compares the standard data template file with it, and can check out elements that are defined in the standard data template file but do not exist in the IEC61850 configuration description file. The second step uses the standard data template file as a reference, compares the IEC61850 configuration description file information in the linked list with it, and can check whether there are elements undefined in the standard data template file in the IEC61850 configuration description file. The specific process is shown in Figure 4.

Claims (1)

1., to the method that IEC 61850 configuration describing document is tested, it is characterized in that it is by configuration file parsing module, storage of linked list and internal memory release module, normal data template file and correction verification module specific implementation, its step is as follows:

(1) carry out test by configuration file parsing module to IEC 61850 configuration describing document to resolve:

Adopt the DOM Interface realization of Microsoft MSXML 4.0 to the parsing of IEC 61850 configuration describing document; After utilizing DOM interface to read XML document, in internal memory, construct a data tree; Utilize the api interface function of MSXML 4.0, carry out the node adding, edit, move or delete optional position in dom tree;

(2) storage of linked list and internal memory release module is utilized to carry out storing and discharging: according to IEC 61850 standard, list structure corresponding to be with it set to the definition of IEC 61850 configuration describing document; Because IEC 61850 configuration describing document is logically tree-like hierarchy, set chained list is tree structure;

Be resolved to after in internal memory at IEC 61850 configuration describing document, the data in internal memory tree with specified data type node are extracted, be stored in linked list data structure, for the customizing messages in trial function access IEC 61850 configuration describing document; In order to avoid there is RAM leakage when program exits, utilize chained list internal memory to discharge function, node carries out manual releasing one by one;

(3) normal data template file is utilized to deposit standard " IEC 61850 engineering relay protection application model " 55 kinds of DOType of unified definition, 15 kinds of DAType and 19 kind of EnumType; In order to the definition of the Appendix D that checks whether the data type template of IEC 61850 configuration describing document meets " IEC 61850 engineering relay protection application model "; Described normal data template file is XML format;

(4) utilize the element information of correction verification module to IEC 61850 configuration describing document stored in described chained list to verify, if undesirable, report to the police, and the type of output error and the index of object element in IEC 61850 configuration describing document.