CN109245316B - Intelligent substation reconstruction and extension bus protection field calibration device and method - Google Patents

Abstract

The invention discloses a checking device for a protection field of a reconstruction and extension bus of an intelligent substation, which comprises a communication interface module, a decoding and channel matching module, a signal distribution module, a first signal buffering module, a second signal buffering module, a signal comparison module, a filtering module, a human-computer interaction module and an SCD file analysis module. The invention also discloses a method for verifying the protection site of the reconstruction and extension bus of the intelligent substation. The invention provides a field verification method for whether the bus protection configuration change affects the operation interval in the reconstruction and extension process, which can verify the configuration change and give an early warning in the bus protection reconstruction and extension process in time.

Description

Intelligent substation reconstruction and extension bus protection field calibration device and method

Technical Field

The invention relates to the technical field of intelligent substations, in particular to a device for verifying a protection site of a reconstructed and expanded bus of an intelligent substation and a method for verifying the protection site of the reconstructed and expanded bus of the intelligent substation.

Background

Along with the scale construction of the intelligent transformer substation, the intelligent transformer substation gradually shifts to operation and maintenance and reconstruction and extension stages, and how to ensure that few power cuts exist at operation intervals after reconstruction and extension and even no power cuts exist is a big hotspot and a difficult problem in the related technical research of the current intelligent transformer substation. From the technical point of view, the reconstruction and expansion mostly relate to the change of a bus protection configuration file, and how to ensure that the normal operation of a live interval is not influenced after the bus protection configuration file is changed and downloaded, the field transmission and even the non-transmission are reduced as much as possible, and a corresponding technical tool or a technical method support is urgently needed.

At present, the daily workload of operation and maintenance debugging of the intelligent substation is large, the time is tight, the capital construction time is uncertain in new construction or reconstruction and extension, and the situation of extruding the secondary debugging time occurs occasionally, so that the method starts from the two aspects of improving the correctness of a bus protection offline reconstruction and extension virtual circuit and enhancing the configuration change checking and early warning capability of on-site protection equipment by relying on the characteristics of digitization and networking of a secondary system of the intelligent substation, and has positive significance for promoting the reconstruction and extension efficiency and safety of the intelligent substation with less power failure and without power failure.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a device and a method for verifying the protection site of the reconstruction and extension bus of the intelligent substation, so that when the protection configuration of the reconstruction and extension bus of the intelligent substation is changed, whether the protection configuration of the bus is changed normally can be quickly verified on site through signal testing, and the reconstruction and extension efficiency and the safety of the intelligent substation are improved.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the intelligent substation reconstruction and extension bus protection field calibration device comprises a communication interface module, a decoding and channel matching module, a signal distribution module, a first signal buffer module, a second signal buffer module, a signal comparison module, a filtering module and an SCD file analysis module,

the communication interface module is used for receiving the bus protection GOOSE message and sending the bus protection GOOSE message to the decoding and channel matching module;

the man-machine interaction module is used for selecting the current SCD file as the SCD file before reconstruction and expansion or the SCD file after reconstruction and expansion according to whether the configuration file installed under the bus protection is the SCD file before reconstruction and expansion or the SCD file after reconstruction and expansion, sending the current SCD file to the SCD file analysis module, setting a characteristic message mark and a reconstruction and expansion mark, and setting a data filtering item of the filtering module;

the SCD file analysis module is used for analyzing the current SCD file selected by the man-machine interaction module to obtain virtual terminal information of a bus protection GOOSE message channel;

the decoding and channel matching module is used for decoding the bus protection GOOSE message received by the communication interface module, supplementing the bus protection GOOSE message channel virtual terminal information obtained by the SCD file analysis module into the bus protection GOOSE message, forming GOOSE message full model data and sending the GOOSE message full model data to the signal distribution module;

the signal distribution module is used for transmitting the GOOSE message full model data to the first signal buffer module or the second signal buffer module according to the reconstruction and extension mark and the characteristic message mark obtained by the man-machine interaction module;

the first signal buffer module is used for buffering GOOSE message full model data formed by the bus protection reconstruction and expansion module and the channel matching module;

the second signal buffer module is used for decoding the GOOSE message full model data formed by the channel matching module after the bus protection reconstruction and expansion is cached;

the signal comparison module is used for comparing the GOOSE message full model data of the first signal buffer module and the GOOSE message full model data of the second signal buffer module one by taking the APPID as an index, marking inconsistent GOOSE message full model data items and sending all the GOOSE message full model data items and inconsistent marks to the filtering module;

and the filtering module is used for shielding the corresponding part of the GOOSE message full model data item and the consistent mark corresponding to the filtering data item, and performing abnormity early warning marking on the remaining GOOSE message full model data items with inconsistent marks.

If the configuration file of the bus protection downloading is before reconstruction and extension, the bus protection GOOSE message is a heartbeat GOOSE message, the man-machine interaction module selects the current SCD file as an SCD file before reconstruction and extension, the man-machine interaction module sets a characteristic message mark as a heartbeat characteristic message mark, and the man-machine interaction module sets a reconstruction and extension mark as a mark before reconstruction and extension;

if the configuration file installed under the bus protection is the SCD file before reconstruction and extension, the GOOSE message of the bus protection is the tripping GOOSE message, the man-machine interaction module selects the current SCD file as the SCD file before reconstruction and extension, the man-machine interaction module sets the characteristic message mark as a tripping characteristic message mark, and the man-machine interaction module sets the reconstruction and extension mark as a before reconstruction and extension mark;

if the configuration file of the bus protection downloading is reconstructed and expanded, the bus protection GOOSE message is a heartbeat GOOSE message, the man-machine interaction module selects the current SCD file as the reconstructed and expanded SCD file, the man-machine interaction module sets a characteristic message mark as a heartbeat characteristic message mark, and the man-machine interaction module sets the reconstructed and expanded mark as the reconstructed and expanded mark;

if the configuration file installed under the bus protection is reconstructed and expanded, the bus protection GOOSE message is a tripping GOOSE message, the man-machine interaction module selects the current SCD file as the reconstructed and expanded SCD file, the man-machine interaction module sets the characteristic message mark as a tripping characteristic message mark, and the man-machine interaction module sets the reconstruction and expansion mark as the reconstructed and expanded mark.

The decoding and channel matching module decodes the bus protection GOOSE message obtained through the communication interface module, extracts APPID of the bus protection GOOSE message, searches bus protection GOOSE message channel virtual terminal information corresponding to the APPID of the bus protection GOOSE message from the bus protection GOOSE message channel virtual terminal information obtained through analysis of the SCD file analysis module, extracts GOOSE message channel data items from the decoded bus protection GOOSE message, and associates the bus protection GOOSE message channel virtual terminal information corresponding to the APPID of the bus protection GOOSE message with the GOOSE message channel data items one by one to further form GOOSE message full model data.

If the reconstruction and extension mark is a pre-reconstruction and extension mark and the characteristic message mark is a heartbeat characteristic message mark, the signal distribution module stores the GOOSE message full model data in a heartbeat characteristic message area of the first signal buffer module by taking APPID of the GOOSE message full model data as an index; if the reconstruction and extension mark is a pre-reconstruction and extension mark and the characteristic message mark is a trip characteristic message mark, the signal distribution module stores the GOOSE message full model data in a trip characteristic message area of the first signal buffer module by taking APPID of the GOOSE message full model data as an index,

if the reconstruction and extension mark is marked after reconstruction and extension and the characteristic message mark is a heartbeat characteristic message mark, the signal distribution module stores the GOOSE message full model data in a heartbeat characteristic message area of the second signal buffer module by taking APPID of the GOOSE message full model data as an index; and if the reconstruction and extension mark is a post-reconstruction and extension mark and the characteristic message mark is a trip characteristic message mark, the signal distribution module stores the GOOSE message full model data in a trip characteristic message area of the second signal buffer module by taking the APPID of the GOOSE message full model data as an index.

The signal comparison module compares the GOOSE message full model data items of the same APPID GOOSE message full model data in the same characteristic message area of the first signal buffer module and the second signal buffer module item by item, performs inconsistency marking on the inconsistent GOOSE message full model data items, and transmits all the GOOSE message full model data items and the inconsistency marks to the filtering module.

The method for verifying the protection site of the reconstruction and extension bus of the intelligent substation comprises the following steps:

step 1, obtaining an SCD file before reconstruction and extension of an intelligent substation and an SCD file after reconstruction and extension;

step 2, selecting the current SCD file as the SCD file before reconstruction and extension;

step 3, before the bus protection reconstruction and expansion device is installed, reading a heartbeat GOOSE message sent by bus protection, extracting bus protection GOOSE message channel virtual terminal information from a current SCD file according to the APPID of the heartbeat GOOSE message obtained in the step, associating the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file with the GOOSE message channel data item of the heartbeat GOOSE message obtained in the step to form GOOSE message full model data, and putting the GOOSE message full model data obtained in the step into a heartbeat feature message area of a first signal buffer module;

step 4, after the step 3, simulating bus protection reconstruction interval faults by using intelligent substation relay protection test equipment, reading trip GOOSE messages sent by bus protection, extracting bus protection GOOSE message channel virtual terminal information from a current SCD file according to the APPID of the trip GOOSE messages obtained in the step, associating the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file with GOOSE message channel data items of the trip GOOSE messages obtained in the step to form GOOSE message full model data, and putting the GOOSE message full model data obtained in the step into a trip characteristic message area of a first signal buffer module;

step 5, selecting the current SCD file as the SCD file after reconstruction and extension;

step 6, after a new configuration file is reconstructed and expanded under bus protection, a heartbeat GOOSE message sent by the bus protection is read on site, bus protection GOOSE message channel virtual terminal information is extracted from a current SCD file according to the APPID of the heartbeat GOOSE message obtained in the step, the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file is associated with the GOOSE message channel data item of the heartbeat GOOSE message obtained in the step to form GOOSE message full model data, and the GOOSE message full model data obtained in the step is placed in a heartbeat feature message area of a second signal buffer module;

step 7, after the step 6, simulating bus protection reconstruction and extension interval faults by using intelligent substation relay protection test equipment, wherein the fault state of the bus protection reconstruction and extension interval faults is consistent with the fault state of the bus protection reconstruction and extension interval faults in the step 4, reading trip GOOSE messages sent by bus protection, extracting bus protection GOOSE message channel virtual terminal information from a current SCD file according to the APPID of the trip GOOSE messages obtained in the step, associating the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file with GOOSE message channel data items of the trip GOOSE messages obtained in the step to form GOOSE message full model data, and putting the GOOSE message full model data obtained in the step into a trip characteristic message area of a second signal buffer module;

step 8, taking APPID as an index, respectively comparing GOOSE message full model data items of the same characteristic message areas of the first signal buffer module and the second signal buffer module item by item, carrying out inconsistency marking on inconsistent GOOSE message full model data items, and transmitting the GOOSE message full model data items and corresponding inconsistency marks to the filtering module;

step 9, the filtering module shields the corresponding part of the GOOSE message full model data item with the filtering data item and the consistent mark corresponding to the filtering data item, and conducts abnormal early warning marking on the remaining GOOSE message full model data items with inconsistent marks;

and step 10, displaying all the GOOSE message full model data items subjected to inconsistent marking obtained in the step 8, displaying the GOOSE message full model data items subjected to abnormal early warning marking obtained by processing in the step 9, and highlighting the GOOSE message full model data items subjected to abnormal early warning marking.

Compared with the prior art, the invention has the following advantages:

1. the field verification method for whether the bus protection configuration change affects the operation interval in the reconstruction and extension process is provided, and the configuration change and early warning can be verified in time in the bus protection reconstruction and extension process;

2. by comparing, reconstructing and expanding front and rear bus protection heartbeat GOOSE messages, trip GOOSE messages and GOOSE channel virtual terminal model data on site, the method is visual and comprehensive and has strong site adaptability;

3. the method is based on SCD file and optical digital message receiving and comparing, and is easy to be realized in portable testing equipment.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of GOOSE channel virtual terminal model data according to the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings and detailed description, in order to facilitate the understanding and implementation of the invention by those skilled in the art.

The intelligent substation reconstruction and extension bus protection field calibration device comprises a communication interface module, a decoding and channel matching module, a signal distribution module, a first signal buffer module, a second signal buffer module, a signal comparison module, a filtering module, a human-computer interaction module and an SCD file analysis module, as shown in figure 1. Wherein:

the communication interface module is used for receiving the bus protection GOOSE message and sending the bus protection GOOSE message to the decoding and channel matching module, and the communication interface module is one or more paths of optical fiber Ethernet interfaces;

the decoding and channel matching module is used for decoding the bus protection GOOSE message received by the communication interface module, supplementing the bus protection GOOSE message channel virtual terminal information obtained by the SCD file analysis module into the bus protection GOOSE message, forming GOOSE message full model data and sending the GOOSE message full model data to the signal distribution module;

the bus protection GOOSE message is sent in the form of data set, one frame of bus protection GOOSE message corresponds to one GOOSE data set, one GOOSE data set comprises several GOOSE data items,

the GOOSE data entries are divided into GOOSE message communication data entries and GOOSE message channel data entries, wherein:

the GOOSE message communication data item comprises APPID, MAC address and other information;

each GOOSE message channel data entry contains GOOSE message channel data, and each GOOSE message channel data entry corresponds to one channel value and bus protection GOOSE message channel virtual terminal information.

Supplementing the bus protection GOOSE message channel virtual terminal information into the bus protection GOOSE message is to associate the bus protection GOOSE message channel virtual terminal information with GOOSE message channel data items.

The bus protection GOOSE message supplemented with the virtual terminal information of the bus protection GOOSE message channel is GOOSE message full model data; each GOOSE data item of the bus protection GOOSE message supplemented with the virtual terminal information of the bus protection GOOSE message channel is a GOOSE message full model data item.

And the signal distribution module is used for transmitting the GOOSE message full model data to the first signal buffer module or the second signal buffer module according to the reconstruction and extension mark and the characteristic message mark obtained by the man-machine interaction module. The reconstruction and extension mark represents that the configuration file installed under the bus protection is before reconstruction and extension or after reconstruction and extension, and the characteristic message mark represents that the GOOSE message full model data corresponds to a heartbeat GOOSE message or a trip GOOSE message sent by the bus protection.

The first signal buffer module is used for buffering GOOSE message full model data formed by the bus protection reconstruction and expansion module and the channel matching module;

the second signal buffer module is used for decoding the GOOSE message full model data formed by the channel matching module after the bus protection reconstruction and expansion is cached;

and the signal comparison module is used for comparing the GOOSE message full model data of the first signal buffer module and the GOOSE message full model data of the second signal buffer module one by taking the APPID as an index, marking inconsistent GOOSE message full model data items and sending all the GOOSE message full model data items and inconsistent marks to the filtering module.

And the filtering module is used for shielding the corresponding part of the GOOSE message full model data item and the consistent mark corresponding to the filtering data item, and performing abnormity early warning marking on the remaining GOOSE message full model data items with inconsistent marks.

And the man-machine interaction module is used for importing the SCD file before reconstruction and extension or the SCD file after reconstruction and extension, selecting the current SCD file as the SCD file before reconstruction and extension or the SCD file after reconstruction and extension according to whether the configuration file installed under the bus protection is the SCD file before reconstruction and extension or the SCD file after reconstruction and extension, sending the current SCD file to the SCD file analysis module, setting a characteristic message mark and a reconstruction and extension mark, setting a data filtering item of the filtering module, displaying all GOOSE message full-model data items and inconsistency marks obtained by the signal comparison module, and highlighting the GOOSE message full-model data items of the abnormal early warning marks obtained by the filtering module.

And the SCD file analysis module is used for analyzing the current SCD file selected by the man-machine interaction module to obtain virtual terminal information of the bus protection GOOSE message channel.

In this embodiment, the setting of the current SCD file, the rebuilding and extension flag, and the feature packet flag in the human-computer interaction module is performed according to the following logic:

if the configuration file of the bus protection downloading is before reconstruction and extension, the bus protection GOOSE message is a heartbeat GOOSE message, the man-machine interaction module selects the current SCD file as an SCD file before reconstruction and extension, the man-machine interaction module sets a characteristic message mark as a heartbeat characteristic message mark, and the man-machine interaction module sets a reconstruction and extension mark as a mark before reconstruction and extension;

if the configuration file installed under the bus protection is the SCD file before reconstruction and extension, the GOOSE message of the bus protection is the tripping GOOSE message, the man-machine interaction module selects the current SCD file as the SCD file before reconstruction and extension, the man-machine interaction module sets the characteristic message mark as a tripping characteristic message mark, and the man-machine interaction module sets the reconstruction and extension mark as a before reconstruction and extension mark;

if the configuration file of the bus protection downloading is reconstructed and expanded, the bus protection GOOSE message is a heartbeat GOOSE message, the man-machine interaction module selects the current SCD file as the reconstructed and expanded SCD file, the man-machine interaction module sets a characteristic message mark as a heartbeat characteristic message mark, and the man-machine interaction module sets the reconstructed and expanded mark as the reconstructed and expanded mark;

if the configuration file installed under the bus protection is reconstructed and expanded, the bus protection GOOSE message is a tripping GOOSE message, the man-machine interaction module selects the current SCD file as the reconstructed and expanded SCD file, the man-machine interaction module sets the characteristic message mark as a tripping characteristic message mark, and the man-machine interaction module sets the reconstruction and expansion mark as the reconstructed and expanded mark.

The values "True/False" or "1/0" may be adopted for the reconstruction and extension flag to represent post-reconstruction/pre-reconstruction, or vice versa, respectively.

The man-machine interaction module is internally provided with a characteristic message mark which is a heartbeat characteristic message mark or a trip characteristic message mark, the bus protection GOOSE message analyzed by the heartbeat characteristic message mark and the trip characteristic message mark characterization decoding and channel matching module is a heartbeat characteristic message or a trip characteristic message, the heartbeat characteristic message is a heartbeat GOOSE message sent by bus protection, and the trip characteristic message is a trip GOOSE message sent by the bus protection.

The decoding and channel matching module analyzes the obtained bus protection GOOSE message channel virtual terminal information and the bus protection GOOSE message obtained by the communication interface module according to the SCD file analysis module to form GOOSE message full model data, and the decoding and channel matching module executes the following logic:

(1) decoding the bus protection GOOSE message obtained through the communication interface module, and extracting an APPID of the bus protection GOOSE message;

(2) the bus protection GOOSE message channel virtual terminal information corresponding to the APPID of the bus protection GOOSE message is searched in the bus protection GOOSE message channel virtual terminal information obtained by analyzing the SCD file analyzing module, and the bus protection GOOSE message channel virtual terminal information comprises the following information:

the method comprises the following steps that a GOOSE channel sending end IEDName, a sending end channel serial number, an internal reference address and internal channel description are carried out;

the GOOSE channel receiving end IEDName, the receiving end channel serial number, the external reference address and the external channel description.

(3) And extracting GOOSE message channel data items from the decoded bus protection GOOSE message, and associating bus protection GOOSE message channel virtual terminal information corresponding to APPID of the bus protection GOOSE message with the GOOSE message channel data items one by one to form GOOSE message full model data.

Taking a GOOSE channel of a 110kV bus protection remote tripping main transformer medium-voltage side switch as an example, virtual terminal information of a GOOSE control block channel associated with the GOOSE channel is shown in fig. 2.

The first signal buffer module and the second signal buffer module both comprise a heartbeat characteristic message area and a trip characteristic message area, and the APPID is used as an index buffer to store GOOSE message full model data.

The signal distribution module transmits the GOOSE message full-model data to the first signal buffer module and the second signal buffer module according to the reconstruction and extension mark and the characteristic message mark of the man-machine interaction module, and the specific logic is as follows:

(1) if the reconstruction and extension mark is a pre-reconstruction and extension mark and the characteristic message mark is a heartbeat characteristic message mark, the signal distribution module stores the GOOSE message full model data in a heartbeat characteristic message area of the first signal buffer module by taking APPID of the GOOSE message full model data as an index; and if the reconstruction and extension mark is a pre-reconstruction and extension mark and the characteristic message mark is a trip characteristic message mark, the signal distribution module stores the GOOSE message full model data in a trip characteristic message area of the first signal buffer module by taking the APPID of the GOOSE message full model data as an index.

(2) If the reconstruction and extension mark is marked after reconstruction and extension and the characteristic message mark is a heartbeat characteristic message mark, the signal distribution module stores the GOOSE message full model data in a heartbeat characteristic message area of the second signal buffer module by taking APPID of the GOOSE message full model data as an index; and if the reconstruction and extension mark is a post-reconstruction and extension mark and the characteristic message mark is a trip characteristic message mark, the signal distribution module stores the GOOSE message full model data in a trip characteristic message area of the second signal buffer module by taking the APPID of the GOOSE message full model data as an index.

And the signal comparison module is used for comparing the GOOSE message full model data items of the same APPID GOOSE message full model data of the same characteristic message region (heartbeat characteristic message region or trip characteristic message region) of the first signal buffer module and the second signal buffer module item by item, carrying out inconsistency marking on the inconsistent GOOSE message full model data items, and transmitting all the GOOSE message full model data items and the inconsistency marks to the filtering module.

And the filtering data items in the filtering module are selected and set in the GOOSE message full-model data items by the man-machine interaction module. The filtering module shields the corresponding part of the GOOSE message full model data item and the consistent mark corresponding to the filtering data item, and conducts abnormal early warning marking on the remaining GOOSE message full model data items with inconsistent marks. In particular embodiments, the filtered data items include, but are not limited to, a state change sequence number (StNum), a message sequence number (SqNum), an Event Timestamp (Event Timestamp), and one or more channel values (Value).

And the man-machine interaction module displays all GOOSE message full-model data items and inconsistent marks obtained by the signal comparison module by taking the APPID as an index, displays the GOOSE message full-model data items subjected to the abnormal early warning marks obtained by the filtering module, and also displays the GOOSE message full-model data items subjected to the abnormal early warning marks in a highlighting mode.

In a specific embodiment, for the inconsistency of the channel value and the channel virtual terminal corresponding to each GOOSE message channel data entry, the corresponding bus protection GOOSE message channel virtual terminal information is further displayed in detail. And the GOOSE message channel data entry, the corresponding channel value and the channel virtual terminal form GOOSE channel virtual terminal model data.

The method for verifying the protection site of the reconstruction and extension bus of the intelligent substation comprises the following steps:

step 1, obtaining an SCD file before reconstruction and extension of an intelligent substation and an SCD file after reconstruction and extension;

step 2, selecting the current SCD file as the SCD file before reconstruction and extension;

step 3, before the bus protection reconstruction and expansion device is installed, reading a heartbeat GOOSE message sent by bus protection, extracting bus protection GOOSE message channel virtual terminal information from a current SCD file according to the APPID of the heartbeat GOOSE message obtained in the step, associating the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file with the GOOSE message channel data item of the heartbeat GOOSE message obtained in the step to form GOOSE message full model data, and putting the GOOSE message full model data obtained in the step into a heartbeat feature message area of a first signal buffer module;

step 4, after the step 3, simulating bus protection reconstruction interval faults by using intelligent substation relay protection test equipment, reading trip GOOSE messages sent by bus protection, extracting bus protection GOOSE message channel virtual terminal information from a current SCD file according to the APPID of the trip GOOSE messages obtained in the step, associating the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file with GOOSE message channel data items of the trip GOOSE messages obtained in the step to form GOOSE message full model data, and putting the GOOSE message full model data obtained in the step into a trip characteristic message area of a first signal buffer module;

step 5, selecting the current SCD file as the SCD file after reconstruction and extension;

step 6, after a new configuration file is reconstructed and expanded under bus protection, a heartbeat GOOSE message sent by the bus protection is read on site, bus protection GOOSE message channel virtual terminal information is extracted from a current SCD file according to the APPID of the heartbeat GOOSE message obtained in the step, the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file is associated with the GOOSE message channel data item of the heartbeat GOOSE message obtained in the step to form GOOSE message full model data, and the GOOSE message full model data obtained in the step is placed in a heartbeat feature message area of a second signal buffer module;

step 7, after the step 6, simulating bus protection reconstruction and extension interval faults by using intelligent substation relay protection test equipment, wherein the fault state of the bus protection reconstruction and extension interval faults is consistent with the fault state of the bus protection reconstruction and extension interval faults in the step 4, reading trip GOOSE messages sent by bus protection, extracting bus protection GOOSE message channel virtual terminal information from a current SCD file according to the APPID of the trip GOOSE messages obtained in the step, associating the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file with GOOSE message channel data items of the trip GOOSE messages obtained in the step to form GOOSE message full model data, and putting the GOOSE message full model data obtained in the step into a trip characteristic message area of a second signal buffer module;

step 8, taking APPID as an index, respectively comparing GOOSE message full model data items of the same characteristic message area (heartbeat characteristic message area or trip characteristic message area) of the first signal buffer module and the second signal buffer module item by item, carrying out inconsistency marking on inconsistent GOOSE message full model data items, and transmitting the GOOSE message full model data items and corresponding inconsistency marks to the filtering module;

step 9, the filtering module shields the corresponding part of the GOOSE message full model data item with the filtering data item and the consistent mark corresponding to the filtering data item, and conducts abnormal early warning marking on the remaining GOOSE message full model data items with inconsistent marks;

and step 10, displaying all the GOOSE message full model data items subjected to inconsistent marking obtained in the step 8, displaying the GOOSE message full model data items subjected to abnormal early warning marking obtained by processing in the step 9, and highlighting the GOOSE message full model data items subjected to abnormal early warning marking.

The above embodiment is only one embodiment of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (5)

1. The intelligent substation reconstruction and extension bus protection field calibration device comprises a communication interface module, and is characterized by further comprising a decoding and channel matching module, a signal distribution module, a first signal buffer module, a second signal buffer module, a signal comparison module, a filtering module and an SCD file analysis module,

the communication interface module is used for receiving the bus protection GOOSE message and sending the bus protection GOOSE message to the decoding and channel matching module;

the man-machine interaction module is used for selecting the current SCD file as the SCD file before reconstruction and expansion or the SCD file after reconstruction and expansion according to whether the configuration file installed under the bus protection is the SCD file before reconstruction and expansion or the SCD file after reconstruction and expansion, sending the current SCD file to the SCD file analysis module, setting a characteristic message mark and a reconstruction and expansion mark, and setting a filtering data item of the filtering module;

the SCD file analysis module is used for analyzing the current SCD file selected by the man-machine interaction module to obtain virtual terminal information of a bus protection GOOSE message channel;

the decoding and channel matching module is used for decoding the bus protection GOOSE message received by the communication interface module, supplementing the bus protection GOOSE message channel virtual terminal information obtained by the SCD file analysis module into the bus protection GOOSE message, forming GOOSE message full model data and sending the GOOSE message full model data to the signal distribution module;

the signal distribution module is used for transmitting the GOOSE message full model data to the first signal buffer module or the second signal buffer module according to the reconstruction and extension mark and the characteristic message mark obtained by the man-machine interaction module;

the first signal buffer module is used for buffering GOOSE message full model data formed by the bus protection reconstruction and expansion module and the channel matching module;

the second signal buffer module is used for decoding the GOOSE message full model data formed by the channel matching module after the bus protection reconstruction and expansion is cached;

the signal comparison module is used for comparing the GOOSE message full model data of the first signal buffer module and the GOOSE message full model data of the second signal buffer module one by taking the APPID as an index, marking inconsistent GOOSE message full model data items and sending all the GOOSE message full model data items and inconsistent marks to the filtering module;

the filtering module is used for shielding the corresponding part of the GOOSE message full model data item with the filtering data item and the consistent mark corresponding to the filtering data item, and carrying out abnormity early warning marking on the residual GOOSE message full model data items with inconsistent marks,

if the configuration file of the bus protection downloading is before reconstruction and extension, the bus protection GOOSE message is a heartbeat GOOSE message, the man-machine interaction module selects the current SCD file as an SCD file before reconstruction and extension, the man-machine interaction module sets a characteristic message mark as a heartbeat characteristic message mark, and the man-machine interaction module sets a reconstruction and extension mark as a mark before reconstruction and extension;

if the configuration file installed under the bus protection is the SCD file before reconstruction and extension, the GOOSE message of the bus protection is the tripping GOOSE message, the man-machine interaction module selects the current SCD file as the SCD file before reconstruction and extension, the man-machine interaction module sets the characteristic message mark as a tripping characteristic message mark, and the man-machine interaction module sets the reconstruction and extension mark as a before reconstruction and extension mark;

if the configuration file of the bus protection downloading is reconstructed and expanded, the bus protection GOOSE message is a heartbeat GOOSE message, the man-machine interaction module selects the current SCD file as the reconstructed and expanded SCD file, the man-machine interaction module sets a characteristic message mark as a heartbeat characteristic message mark, and the man-machine interaction module sets the reconstructed and expanded mark as the reconstructed and expanded mark;

if the configuration file installed under the bus protection is reconstructed and expanded, the bus protection GOOSE message is a tripping GOOSE message, the man-machine interaction module selects the current SCD file as the reconstructed and expanded SCD file, the man-machine interaction module sets the characteristic message mark as a tripping characteristic message mark, and the man-machine interaction module sets the reconstruction and expansion mark as the reconstructed and expanded mark.

2. The intelligent substation reconstruction and extension bus protection field calibration device according to claim 1, wherein the decoding and channel matching module decodes a bus protection GOOSE message obtained through the communication interface module, extracts an APPID of the bus protection GOOSE message, searches bus protection GOOSE message channel virtual terminal information corresponding to the APPID of the bus protection GOOSE message from bus protection GOOSE message channel virtual terminal information obtained by parsing by the SCD file parsing module, extracts GOOSE message channel data items from the decoded bus protection GOOSE message, associates bus protection GOOSE message channel virtual terminal information corresponding to the APPID of the bus protection GOOSE message with the GOOSE message channel data items one by one, and further forms GOOSE message full model data,

supplementing the bus protection GOOSE message channel virtual terminal information into the bus protection GOOSE message is to associate the bus protection GOOSE message channel virtual terminal information with GOOSE message channel data items,

the bus protection GOOSE message supplemented with the virtual terminal information of the bus protection GOOSE message channel is GOOSE message full model data; each GOOSE data item of the bus protection GOOSE message supplemented with the virtual terminal information of the bus protection GOOSE message channel is a GOOSE message full model data item.

3. The intelligent substation reconstruction and extension bus protection field verification device of claim 2,

if the reconstruction and extension mark is a pre-reconstruction and extension mark and the characteristic message mark is a heartbeat characteristic message mark, the signal distribution module stores the GOOSE message full model data in a heartbeat characteristic message area of the first signal buffer module by taking APPID of the GOOSE message full model data as an index; if the reconstruction and extension mark is a pre-reconstruction and extension mark and the characteristic message mark is a trip characteristic message mark, the signal distribution module stores the GOOSE message full model data in a trip characteristic message area of the first signal buffer module by taking APPID of the GOOSE message full model data as an index,

if the reconstruction and extension mark is marked after reconstruction and extension and the characteristic message mark is a heartbeat characteristic message mark, the signal distribution module stores the GOOSE message full model data in a heartbeat characteristic message area of the second signal buffer module by taking APPID of the GOOSE message full model data as an index; and if the reconstruction and extension mark is a post-reconstruction and extension mark and the characteristic message mark is a trip characteristic message mark, the signal distribution module stores the GOOSE message full model data in a trip characteristic message area of the second signal buffer module by taking the APPID of the GOOSE message full model data as an index.

4. The intelligent substation reconstruction and extension bus protection field verification device according to claim 3, wherein the signal comparison module compares the GOOSE message full model data items of the GOOSE message full model data of the same APPID in the same characteristic message area of the first signal buffer module and the second signal buffer module item by item, performs inconsistency marking on inconsistent GOOSE message full model data items, and transmits all the GOOSE message full model data items and the inconsistency marking to the filtering module.

5. The method for verifying the protection site of the reconstruction and extension bus of the intelligent substation is characterized by comprising the following steps:

step 1, obtaining an SCD file before reconstruction and extension of an intelligent substation and an SCD file after reconstruction and extension;

step 2, selecting the current SCD file as the SCD file before reconstruction and extension;

step 3, before the bus protection reconstruction and expansion device is installed, reading a heartbeat GOOSE message sent by bus protection, extracting bus protection GOOSE message channel virtual terminal information from a current SCD file according to the APPID of the heartbeat GOOSE message obtained in the step, associating the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file with the GOOSE message channel data item of the heartbeat GOOSE message obtained in the step to form GOOSE message full model data, supplementing the bus protection GOOSE message channel virtual terminal information into the bus protection GOOSE message, namely associating the bus protection GOOSE message channel virtual terminal information with the GOOSE message channel data item, and placing the GOOSE message full model data obtained in the step into a heartbeat feature message area of a first signal buffer module;

step 4, after the step 3, simulating bus protection reconstruction interval faults by using intelligent substation relay protection test equipment, reading trip GOOSE messages sent by bus protection, extracting bus protection GOOSE message channel virtual terminal information from a current SCD file according to the APPID of the trip GOOSE messages obtained in the step, associating the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file with GOOSE message channel data items of the trip GOOSE messages obtained in the step to form GOOSE message full model data, and putting the GOOSE message full model data obtained in the step into a trip characteristic message area of a first signal buffer module;

step 5, selecting the current SCD file as the SCD file after reconstruction and extension;

step 6, after a new configuration file is reconstructed and expanded under bus protection, a heartbeat GOOSE message sent by the bus protection is read on site, bus protection GOOSE message channel virtual terminal information is extracted from a current SCD file according to the APPID of the heartbeat GOOSE message obtained in the step, the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file is associated with the GOOSE message channel data item of the heartbeat GOOSE message obtained in the step to form GOOSE message full model data, and the GOOSE message full model data obtained in the step is placed in a heartbeat feature message area of a second signal buffer module;

step 7, after the step 6, simulating bus protection reconstruction and extension interval faults by using intelligent substation relay protection test equipment, wherein the fault state of the bus protection reconstruction and extension interval faults is consistent with the fault state of the bus protection reconstruction and extension interval faults in the step 4, reading trip GOOSE messages sent by bus protection, extracting bus protection GOOSE message channel virtual terminal information from a current SCD file according to the APPID of the trip GOOSE messages obtained in the step, associating the bus protection GOOSE message channel virtual terminal information extracted from the current SCD file with GOOSE message channel data items of the trip GOOSE messages obtained in the step to form GOOSE message full model data, and putting the GOOSE message full model data obtained in the step into a trip characteristic message area of a second signal buffer module;

step 8, taking APPID as an index, respectively comparing GOOSE message full model data items of the same characteristic message areas of the first signal buffer module and the second signal buffer module item by item, carrying out inconsistency marking on inconsistent GOOSE message full model data items, and transmitting the GOOSE message full model data items and corresponding inconsistency marks to the filtering module;

step 9, the filtering module shields the corresponding part of the GOOSE message full model data item with the filtering data item and the consistent mark corresponding to the filtering data item, and conducts abnormal early warning marking on the remaining GOOSE message full model data items with inconsistent marks;

and step 10, displaying all the GOOSE message full model data items subjected to inconsistent marking obtained in the step 8, displaying the GOOSE message full model data items subjected to abnormal early warning marking obtained by processing in the step 9, and highlighting the GOOSE message full model data items subjected to abnormal early warning marking.

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