CN108414849B - Intelligent substation automatic test system and method - Google Patents
Intelligent substation automatic test system and method Download PDFInfo
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Abstract
The invention aims to provide a handheld relay protection tester and an automatic testing system for an intelligent substation, which are used for solving the problems in the prior art scheme, simplifying the testing configuration and improving the testing efficiency. Comprising the following steps: the system comprises a test template module, a test case setting module, a control module and a test result generating module. The following beneficial technical effects can be achieved by implementing the invention: the intelligent substation automatic test system can automatically test according to the relay protection device to be tested, so that test configuration is simplified, efficiency is improved, and technical requirements of users are reduced.
Description
Technical Field
The invention relates to the field of intelligent substations, and relates to an intelligent substation automatic test system and method.
Background
The development and construction planning of the intelligent power grid is proposed from 2009 national power grid company, and the company has built more than 840 seats of intelligent substations of 110kV and above. In order to meet the development of a power grid and ensure the operation reliability of equipment, part of intelligent substations put into operation face the requirements of extension or transformation, and meanwhile, the conventional substations also have the problem of intelligent transformation. Compared with the traditional transformer substation, the intelligent transformer substation secondary system adopts new technologies and new equipment such as information modeling, network communication and merging units, traditional cable connection physical signals are converted into network communication link signals, data sharing is realized to a certain extent, the total station structure is effectively simplified, and the intelligent level is improved. The intelligent substation process layer network information flow not only carries power grid operation state data such as sampling, switching state and the like, but also carries control commands such as tripping and locking among secondary devices.
The safe and stable operation of the intelligent substation must need the professional knowledge and skill of the practitioner to upgrade. Provincial electric department, through the institute, send electric company, skill training center, electric power school etc. each provincial electric company directly belongs to the unit, respectively bears technical supervision, test detection, planning design, engineering construction, talent cultivation etc. and serves provincial electric wire netting's responsibility, and it has accumulated abundant experience in traditional transformer substation relevant business field, has cultivated outstanding talent team, but still needs to improve at present in intelligent substation relevant business field. The main problems are represented in the following aspects:
1. the intelligent transformer substation is not familiar with the technical knowledge system, architecture and virtual terminal connection concepts of the intelligent transformer substation;
2. the problem investigation flow of the intelligent protection device is unclear and the general standard specification is lacking;
3. the method has the advantages that the method has insufficient significance for analyzing the running conditions of the transformer substation for communication network tools such as a field network analyzer and a switch;
4. familiarity to intelligent substation test instruments including a handheld network analyzer, a handheld relay protection tester and the like is insufficient, and complexity of on-site debugging is increased;
5. the analysis experience of abnormal conditions, alarm conditions and action problems of the intelligent substation is insufficient, and particularly in some sporadic actions, enough experience accumulation is insufficient.
The project takes the problems as a starting point, researches on the intelligent substation handheld relay protection tester and the automatic testing system are carried out, testing configuration is simplified, testing automation process and efficiency are improved, and the method has important practical significance for improving operation safety and stability of a power grid.
Disclosure of Invention
The invention aims to provide a handheld relay protection tester and an automatic testing system for an intelligent substation, which are used for solving the problems in the prior art scheme, simplifying the testing configuration and improving the testing efficiency.
In order to achieve the purpose, an intelligent substation automatic test system is used for being connected with a relay protection tester and a relay protection device to be tested, and comprises:
the test template module is used for storing relay protection test cases;
the test case setting module is used for obtaining a protection fixed value of the tested relay protection device and setting a relay protection test case based on the protection fixed value;
the control module is used for driving the relay protection tester to output test voltage and test current according to the set relay protection test case;
and the test result generation module is used for reading the action message of the relay protection device to be tested and generating a test result based on the action message.
Preferably, the test template module is used for setting a plurality of relay protection test cases for different types of relay protection devices to be tested; the relay protection test case set based on the protection fixed value comprises the following steps: and obtaining the model of the tested relay protection device, selecting a relay protection test case corresponding to the relay protection model according to the model of the relay protection device, and setting the selected relay protection test case according to the protection fixed value.
Preferably, the test parameters of the relay protection test case are associated with a protection fixed value, and the setting the relay protection test case based on the protection fixed value includes: and obtaining the test parameters related to the protection fixed value according to the protection fixed value, and generating a set relay protection test case according to the test.
Preferably, the test case is set with different faults, corresponding SMV messages and GOOSE messages are generated according to the set faults, and the SMV messages and the GOOSE messages are sent to the relay protection device to be tested.
Preferably, the system establishes communication connection with the relay protection device to be tested through an MMS interface and acquires the protection fixed value.
Preferably, the generating the test result based on the action message includes: based on the action message, acquiring the action of the relay protection device to be tested, wherein the action comprises adjustment, superposition or post acceleration actions; judging whether the action error meets the set requirement, whether the action time is within the set range and whether the action logic is correct, if the action error meets the set requirement, the action time is within the set range and the action logic is correct, judging that the relay protection device to be tested is normal, otherwise, judging that the relay protection device to be tested is abnormal.
Preferably, the test case setting module obtains an ICD file of the tested relay protection device, and obtains a protection fixed value of the tested relay protection device based on the ICD file.
In another aspect of the invention, an intelligent substation automation test method includes:
setting a relay protection test case, wherein test parameters of the relay protection test case are associated with a protection fixed value;
acquiring a protection fixed value of the tested relay protection device, acquiring test parameters based on the protection fixed value, and setting a relay protection test case based on the test parameters;
driving a relay protection tester to output test voltage and test current according to the set relay protection test case;
and reading an action message of the relay protection device to be tested, and generating a test result based on the action message.
Preferably, a plurality of relay protection test cases are set for the tested relay protection devices with different models; the step of obtaining the test parameters based on the protection fixed values, the step of obtaining the test parameters based on the protection fixed values and setting relay protection test cases based on the test parameters comprises the following steps: the method comprises the steps of obtaining the model of the relay protection device to be tested, selecting relay protection test cases corresponding to the relay protection model according to the model of the relay protection device, obtaining test parameters based on protection fixed values, and setting the selected relay protection test cases according to the test parameters.
Preferably, the test case is set with different faults, corresponding SMV messages and GOOSE messages are generated according to the set faults, and the SMV messages and the GOOSE messages are sent to the relay protection device to be tested.
The following beneficial technical effects can be achieved by implementing the invention: the intelligent substation automatic test system and the intelligent substation automatic test method can automatically test according to the relay protection device to be tested, simplify test configuration, improve efficiency and reduce technical requirements of users.
Drawings
FIG. 1 is a system connection diagram in example 1;
FIG. 2 is a schematic diagram of a hash table;
fig. 3 is a flow chart of the method of example 2.
Detailed Description
The invention will be further described in conjunction with the following specific examples, which are intended to facilitate an understanding of those skilled in the art:
example 1:
the invention provides an intelligent substation automatic test system, which is used for being connected with a relay protection tester and a relay protection device to be tested, as shown in fig. 1, and comprises the following components:
the test template module 1 is used for storing relay protection test cases;
the test case setting module 2 is used for obtaining a protection fixed value of the tested relay protection device and setting a relay protection test case based on the protection fixed value;
the control module 3 is used for driving the relay protection tester to output test voltage and test current according to the set relay protection test case;
and the test result generation module 4 is used for reading the action message of the relay protection device to be tested and generating a test result based on the action message.
Parameters are required to be set for the relay protection test cases, and the relay protection test cases are automatically set according to the protection fixed value of the tested relay protection device; and the relay protection test case is used for testing, and a test result is obtained, so that the configuration complexity is greatly simplified, the efficiency is improved, and the technical requirements of users are reduced.
In one embodiment: the test template module is used for setting a plurality of relay protection test cases for different types of relay protection devices to be tested; the relay protection test case set based on the protection fixed value comprises the following steps: and obtaining the model of the tested relay protection device, selecting a relay protection test case corresponding to the relay protection model according to the model of the relay protection device, and setting the selected relay protection test case according to the protection fixed value. The system can be suitable for setting relay protection equipment of different models.
In one embodiment: the test parameters of the relay protection test case are associated with a protection fixed value, and the relay protection test case is set based on the protection fixed value, and the relay protection test case comprises: and obtaining the test parameters related to the protection fixed value according to the protection fixed value, and generating a set relay protection test case according to the test. It can be known that the test parameters of the relay protection test case are set to be parameters related to the protection fixed value, so that the test parameters of the relay protection test case can be automatically adjusted according to the protection fixed value, the trial range of the relay protection test case is improved, and the practicability is improved. It can be appreciated that there are various ways of association, such as difference association, ratio association, table association, etc., and the present application is not limited thereto.
In one embodiment, the generating the test result based on the action message includes: based on the action message, acquiring the action of the relay protection device to be tested, wherein the action comprises adjustment, superposition or post acceleration actions; judging whether the action error meets the set requirement, whether the action time is within the set range and whether the action logic is correct, if the action error meets the set requirement, the action time is within the set range and the action logic is correct, judging that the relay protection device to be tested is normal, otherwise, judging that the relay protection device to be tested is abnormal. It can be known that the tested relay protection device is abnormal, and related abnormal information can be displayed.
In one embodiment: and the test case setting module acquires an ICD file of the tested relay protection device and acquires a protection fixed value of the tested relay protection device based on the ICD file.
In one embodiment: and setting different faults in the test case, generating corresponding SMV messages and GOOSE messages according to the set faults, and sending the SMV messages and the GOOSE messages to the relay protection device to be tested. And the test platform establishes communication connection with the relay protection device to be tested through an MMS interface and acquires the protection fixed value. It is known that the MMS interface is based on the MMS protocol of the IEC61850 standard, and those skilled in the art will know that the GOOSE messages and the SMV messages are based on both messages of the IEC61850 standard. For convenience of connection, the following will be explained appropriately with respect to IEC61850 standard and the like:
IEC61850 standard system:
the IEC61850 standard is widely applied to intelligent substations, and the standard system and the application specification of the IEC61850 standard are gradually refined. The IEC61850 standard unifies an information model in the transformer substation, and standardizes the communication interfaces of all devices of the whole substation. The standard defines that the substation monitoring automation system consists of three layers of network architecture of a station control layer, a spacer layer and a process layer, and provides SCL information model and techniques of description, abstract Communication Service Interface (ACSI), specific Communication Service Mapping (SCSM) and the like, so that interoperability among devices and expandability of total station functions are realized.
The IEC61850 standard organizes and constructs functional data of intelligent devices and systems in a tree structure according to a mode of logic devices, logic nodes, data objects and data attributes by an object-oriented unified modeling idea, and forms various SCL models.
ICD document structures are defined in IEC61850 for device IEDs, and the standards include formats of channel information, logic devices, logic nodes, data objects, data attributes and the like.
SCL in IEC 61850-6 adopts XMLschema document type to define SCL document structure, SCL.xsd is used as main file in standard, and other 7 Schema files are referenced and contained for checking the correctness of IED configuration file format and the validity of data information.
IEC61850 employs standardized communication service interface technology in order to achieve interoperability between devices. In the station control layer network, IEC 61850/MMS standardized communication service is adopted to realize the access of equipment and subsystems such as measurement and control, protection, PMU, fault recorder, primary equipment state monitoring and the like. In a station control layer or process layer network, IEC61850/GOOSE standardized communication service is adopted for rapid transmission of real-time messages between devices, so that network tripping and interlocking between the devices are realized. In the process layer network, the network transmission of the sampled measured values is realized by adopting the IEC61850-9-2 standardized sampling value transmission communication service.
Sampling value transmission standard system:
the digital transmission mode of the electrical sampling greatly improves the information capacity of the transformer substation, and simplifies the information sharing and the inter-equipment interoperation of the transformer substation. At present, sampling value transmission modes in engineering implementation of an intelligent substation mainly comprise modes such as IEC60044-8FT3 point-to-point transmission, IEC61850-9-2 networking transmission and the like, and the IEC60044-8FT3 adopts a serial data transmission mode. The IEC61850-9-2 protocol is a specific communication service mapping for communicating and transmitting sampling values between a process layer and a spacer layer according to a sampling value data model specified by IEC61850-7-2 and a related ACSI service definition, and supports modification of a data set and direct access to a data object; the frame format can be flexibly defined, and the unicast mode is supported, and the support of the ASCI model is more complete. IEC61850-9-2 includes point-to-point transmission and networking transmission. The point-to-point mode is suitable for single interval or occasions with low requirement on data synchronism, and the networking mode is suitable for data transmission application with more intervals.
Message specification MMS is made:
the IEC6150 has the obvious technical characteristics that a manufacturing message standard MMS is used, and the MMS aims to standardize the communication behaviors of an intelligent sensor, an intelligent electronic device and an intelligent control device with communication capability in the industrial field, so that the network access of devices from different manufacturers is convenient, the information intercommunication and the resource sharing are easy to realize, and the devices can be replaced as long as the devices which meet the MMS standard and can realize the same function. The communication of the substation level and the bay level is mapped to MMS using an abstract communication service interface ACSI.
SCD file parsing:
SCD files are described by XML file formats, and there are DOM (Document Object Model ) parsing methods and SAX (Simple API for XML, simple API model) parsing methods for mainstream parsing techniques of XML files. The two interface specifications have the emphasis on each other, have the length and are widely applied. The DOM mode is to convert the whole XML document into a DOM tree and put the DOM tree in a memory, so that an application program can access any part of data in the XML document at any time, and when the document is relatively large or the structure is relatively complex, the memory requirement is relatively high. SAX is a progressive scanning document that is scanned and parsed, and has fast access speed and high efficiency, but does not support random access. In the method, the DOM method and the Xpath (XML Path Language) technology are adopted for analysis, so that the SCD file size is not too large. Xpath is a path language based on object model DOM, and can be used for conveniently and quickly searching a specific node or searching all nodes matched with a certain condition. The Xpath technology is effectively utilized, complex recursive operation can be skipped, and the running efficiency of the program is improved.
The protection fixed value of the relay protection device to be tested can be obtained by analyzing the SCD file;
SCD content parsing program flow:
in the first step, the SCD file is loaded to form a DOM tree, elements are filled, and PCDATA and CDATA blocks are expanded. Meanwhile, key elements and attributes are obtained through XPath technology, for example, an IED list xpath_node_set IED_list=doc.select_nodes ("/SCL/IED") is obtained through XPath, and then parameters such as names, types and the like of each IED are extracted by traversing an xpath_node_set container;
and secondly, establishing a hash table of the data template for searching the following data, and greatly improving the searching speed.
And thirdly, acquiring communication parameters of the control block. xpath_node_set connection ap_list = doc select_nodes ("/SCL/Communication/SubNetwork/Con connection ap"); acquiring MAC-Address, VLAN-ID and APPID communication parameters of all GSE and SMV;
searching a corresponding data set, a corresponding channel description and a corresponding channel leaf node in the IED node according to the communication parameters of the GSE and the SMV;
fifthly, acquiring GOOSE and SMV subscription. Entering input nodes to acquire virtual terminals subscribed by the device;
and sixthly, searching the association relation of the device according to the subscription and release relation.
Key to improve the resolution speed: in the fourth step, a very large number of repeated searches are involved, which is the most time-consuming place of the program, and in order to improve the parsing speed, a hash algorithm is used, which is also the key point of being able to parse rapidly. Hash, commonly known as "hashing" or direct transliteration as "hashing", is the transformation of an input of arbitrary length (also called pre-map) into an output of fixed length, the output being the Hash value, by a hashing algorithm. This transformation is a compressed mapping, i.e. the hash value is typically much smaller in space than the input, different inputs may be hashed to the same output, and it is not possible to uniquely determine the input value from the hash value. Simply stated, a function of compressing messages of arbitrary length to a message digest of a fixed length. Hash is mainly used for encryption algorithms in the field of information security and quick search, and converts information of different lengths into scrambled 128-bit codes, and the code values are called Hash values. There are many ways to implement the hash algorithm, and the basic principle of which is shown in fig. 2 is implemented by using Fibonacci (Fibonacci) hashing.
It is apparent to the left that an array, each member of which includes a pointer to the head of a linked list, which may be empty or may have many elements. The elements are distributed into different linked lists according to some characteristics of the elements, and the correct linked list is found according to the characteristics, and then the elements are found from the linked list.
In the second step, three hash tables are built, namely, a hash table is built between an LNodeType node below (/ SCL/DataTypeTemplates) and an id field of the LNodeType node, a hash table is built between a DOType node and an id field of the DOType node, and a hash table is built between a DAType node and an id field of the DOType node, so that required data can be found very quickly when the data is searched through the FCDA node.
Performance test: under the Intel (R) Core (TM) [email protected] processor, the SCD file parsing speed test result in this way is as follows: the SCD file analysis speed of 40M is 1 second, the SCD file analysis speed of 70M is 2 seconds, the SCD file analysis speed of 175M is 4 seconds, when the file is larger, the bottleneck of the speed is the DOM forming process of the device file, the analysis speed of the mode reaches the industry leading level, and the engineering efficiency is greatly improved.
And (3) sending an SMV message:
there are two sampling frequencies, one 80 points/week and one 256 points/week, according to IEC61850 standard SMV. The signal generating equipment needs to send the two sampling frequencies, the requirement of relay protection on equal interval transmission of SMV data and the requirement of GOOSE transmission instantaneity are considered, a hardware platform is realized by considering the combination of an FPGA and an ARM, and the FPGA is used for ensuring the equal interval transmission of the SMV data.
While considering the transmission of conventional SMV data, the function of customizing the transmission of SMV data is required, there are generally several kinds of functions as follows:
(1) conventional SMV transmissions are transmitted at 4000 points per second, the interval between each point is 250us, the range is within plus or minus 10us, the test instruments are usually transmitted at equal intervals, and the device also needs to simulate that the time interval of the transmitted message is not in the specified range.
(2) Various SMV parameter errors such as sequence number deviation, frame loss, synchronization mark, quality test, sequence number jump, error value test, version, SMVID, MAC address, frame repetition, channel delay change, quality change, double AD sampling abnormality and the like are simulated.
(3) Analog error messages such as APDU errors, ASDU errors, message timeout.
(4) Providing a comrade data playback function.
(5) Providing a function of sending the pcap file.
(6) And providing an SMV message editing interface, wherein a user can freely edit the SMV message and send the edited message according to a certain rule.
GOOSE message transmission
The general object-oriented substation event GOOSE mechanism is an important characteristic of IEC61850 standard, has priority control of Ethernet transmission, is applied to important messages such as protection tripping, logic locking and the like, and must be transmitted to a destination in a specified time, and has very high requirements on real-time performance and reliability.
And researching the multi-state and multi-time sequence sending of GOOSE messages. Multiple states allow for the switching of a single signal from on to off, of a virtual terminal, and multiple timings allow for the continuity and configurability of multiple state durations of the virtual terminal.
While considering sending regular GOOSE data, there are several functions that require sending custom GOOSE data, generally:
(1) the conventional GOOSE transmission mechanism is satisfied, and multi-state and multi-time sequence transmission is considered. Multiple states allow for the switching of a single signal from on to off, of a virtual terminal, and multiple timings allow for the continuity and configurability of multiple state durations of the virtual terminal.
(2) And simulating various GOOSE parameter errors, such as frame loss, SQ, ST reversal, reset, maintenance, state virtual change, event loss, transmission mechanism errors and the like.
(3) Analog error messages such as APDU errors, ASDU errors, message timeout.
(4) Providing a comrade data playback function.
(5) Providing a function of sending the pcap file.
(6) Providing a GOOSE message editing interface, enabling a user to freely edit the GOOSE message, and sending the edited message according to a certain rule.
MMS client communication
The MMS client is mainly used for MMS communication test of intelligent devices such as protection, measurement and control, wave recorder and the like, needs the equipment as the client to send information such as reading device parameters, fixed values, telemetering values, remote signaling values, pressing plates, reports and the like, and can modify equipment data such as device parameters, fixed values, soft pressing plates and the like.
While conventional MMS data are considered for recall, the function of sending the MMS data for customization is required, and there are generally several kinds of functions as follows:
(1) simulating the flow of modifying the constant value error.
(2) And the false processes of analog signal reset, remote control wave recording, etc.
(3) Simulating the error modifying process of the soft pressing plate.
Example 2:
the intelligent substation automatic test method, as shown in fig. 3, comprises the following steps:
step S1: setting a relay protection test case, wherein test parameters of the relay protection test case are associated with a protection fixed value;
step S2: acquiring a protection fixed value of the tested relay protection device, acquiring test parameters based on the protection fixed value, and setting a relay protection test case based on the test parameters;
step S3: driving a relay protection tester to output test voltage and test current according to the set relay protection test case;
step S4: and reading an action message of the relay protection device to be tested, and generating a test result based on the action message.
In one embodiment, a plurality of relay protection test cases are set for different types of relay protection devices to be tested; the step of obtaining the test parameters based on the protection fixed values, the step of obtaining the test parameters based on the protection fixed values and setting relay protection test cases based on the test parameters comprises the following steps: the method comprises the steps of obtaining the model of the relay protection device to be tested, selecting relay protection test cases corresponding to the relay protection model according to the model of the relay protection device, obtaining test parameters based on protection fixed values, and setting the selected relay protection test cases according to the test parameters.
In one embodiment, the test case is set with different faults, corresponding SMV messages and GOOSE messages are generated according to the set faults, and the SMV messages and the GOOSE messages are sent to the relay protection device to be tested.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The automatic test system of intelligent substation for link to each other with relay protection tester and tested overload protection device, its characterized in that includes:
the test template module is used for storing relay protection test cases;
the test case setting module is used for obtaining a protection fixed value of the tested relay protection device and setting a relay protection test case based on the protection fixed value;
the control module is used for driving the relay protection tester to output test voltage and test current according to the set relay protection test case;
the test result generation module is used for reading the action message of the relay protection device to be tested and generating a test result based on the action message;
the test template module is used for setting a plurality of relay protection test cases for different types of relay protection devices to be tested; the relay protection test case set based on the protection fixed value comprises the following steps: obtaining the model of the relay protection device to be tested, selecting a relay protection test case corresponding to the relay protection model according to the model of the relay protection device, and setting the selected relay protection test case according to the protection fixed value;
the test parameters of the relay protection test case are associated with a protection fixed value, and the relay protection test case is set based on the protection fixed value, and the relay protection test case comprises: obtaining a test parameter related to the protection fixed value according to the protection fixed value, and generating a set relay protection test case according to the test;
the generating the test result based on the action message comprises the following steps: based on the action message, acquiring the action of the relay protection device to be tested, wherein the action comprises adjustment, superposition or post acceleration actions; judging whether the action error meets the set requirement, whether the action time is within the set range and whether the action logic is correct, if the action error meets the set requirement, the action time is within the set range and the action logic is correct, judging that the relay protection device to be tested is normal, otherwise, judging that the relay protection device to be tested is abnormal.
2. The intelligent substation automation test system according to claim 1, wherein the test cases are configured with different faults, corresponding SMV messages and GOOSE messages are generated according to the configured faults, and the SMV messages and GOOSE messages are sent to the relay protection device under test.
3. The intelligent substation automation test system according to claim 1, wherein the system establishes communication connection with the relay protection device under test through an MMS interface and obtains the protection fixed value.
4. The intelligent substation automation test system of claim 1, wherein the test case setting module obtains an ICD file of the relay protection device under test and obtains the protection fixed value of the relay protection device under test based on the ICD file.
5. An intelligent substation automatic test method applied to the intelligent substation automatic test system according to any one of claims 1 to 4, comprising the following steps:
setting a relay protection test case, wherein test parameters of the relay protection test case are associated with a protection fixed value;
acquiring a protection fixed value of the tested relay protection device, acquiring test parameters based on the protection fixed value, and setting a relay protection test case based on the test parameters;
driving a relay protection tester to output test voltage and test current according to the set relay protection test case;
and reading an action message of the relay protection device to be tested, and generating a test result based on the action message.
6. The intelligent substation automation test method according to claim 5, wherein a plurality of relay protection test cases are set for different types of relay protection devices to be tested; the step of obtaining the test parameters based on the protection fixed values, the step of obtaining the test parameters based on the protection fixed values and setting relay protection test cases based on the test parameters comprises the following steps: the method comprises the steps of obtaining the model of the relay protection device to be tested, selecting relay protection test cases corresponding to the relay protection model according to the model of the relay protection device, obtaining test parameters based on protection fixed values, and setting the selected relay protection test cases according to the test parameters.
7. The intelligent substation automation test method according to claim 5, wherein the test cases are set with different faults, corresponding SMV messages and GOOSE messages are generated according to the set faults, and the SMV messages and the GOOSE messages are sent to the relay protection device to be tested.
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| CN109856532A (en) * | 2019-02-25 | 2019-06-07 | 许昌开普检测研究院股份有限公司 | A kind of Intelligent protective relaying device process layer exception Auto-Test System |
| CN110174609B (en) * | 2019-05-07 | 2022-03-18 | 许昌开普检测研究院股份有限公司 | Method for establishing relay protection general test case frame system |
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