TWI636631B - Switch device for substation and error warning method thereof - Google Patents

Abstract

An exchanger device and a fault warning method suitable for a substation, the switch device replicating and accessing a general object-oriented substation event packet, and exchanging when the switch device determines that the general object-oriented substation event packet triggers an abnormal state event The device device generates an abnormal state event confirmation request and transmits to the corresponding upstream switch device, and the switch device fails to receive the ready response from the upstream switch device to issue a warning message, thereby achieving a fast and accurate knowledge of the initial trigger abnormality. The state event's exchanger device facilitates the technical effectiveness of the repair.

Description

Exchanger device and fault warning method suitable for substation

The utility model relates to an exchanger device and a fault warning method, in particular to an exchange device and a fault warning method suitable for a substation.

The Generic Object Oriented Substation Events (GOOSE) is the most important communication protocol for the IEC 61850 substation. The agreement defines the control commands between the Intelligent Electronic Devices (IEDs) in the substation.

When an abnormality occurs in the system, the power line in the abnormal area is stopped from being supplied for isolation, and the normal power supply is protected in other areas. Therefore, the correct immediate action of the general object-oriented substation event packet can reduce the affected range to the abnormality. Minimal, minimizing money and operational losses.

When a smart electronic device cannot normally receive the general object-oriented substation event packet transmitted by other smart electronic devices, the maintenance personnel must check the communication status of all the switch devices between the smart electronic device and other smart electronic devices one by one. The method finds the cause of the fault. However, the network scale of the substation is very complicated, which makes the existing troubleshooting efficiency poor, resulting in a longer recovery time of the power supply system, resulting in increased losses.

In summary, it can be seen that in the prior art, there has been a long-standing problem of poor fault detection efficiency of a switch device suitable for a substation, and therefore it is necessary to propose an improved technical means to solve this problem.

In view of the prior art, there is a problem that the fault detection efficiency of a switch device suitable for a substation is not good, and the present invention discloses a switch device and a fault warning method suitable for a substation, wherein:

The switch device suitable for a substation disclosed by the present invention comprises: a packet receiving module, a packet transmitting module, a packet access control module, a packet judging module, a request transmitting module, a warning module, and a request receiving module. The group, the request judgment module, and the request reply transfer module.

The packet receiving module is configured to receive a Generic Object Oriented Substation Events (GOOSE) packet; the packet transmitting module is configured to transmit a general object-oriented substation event packet; the packet access control module is When the packet receiving module receives the general object-oriented substation event packet, copying and accessing the general object-oriented substation event packet is copying the general object-oriented substation event packet; the packet judging module is determining that the copy is universal When the object-oriented substation event packet triggers an abnormal state event, an abnormal state event confirmation request is generated; the request delivery module transmits an abnormal state event confirmation request to the upstream switch device corresponding to the transmission of the general object-oriented substation event packet; the warning mode The group sends a warning message when it fails to receive a Ready response from the upstream switch device; the request receiving module is configured to receive an abnormal state event confirmation from the downstream switch device corresponding to the receiving general object-oriented substation event packet. Request; the request judgment module is to determine that the switch device triggers When an abnormal event status confirmation request same event an abnormal state, generates a ready response; reply request transmitting module and is transmitted in response to the ready downstream switching device.

The fault warning method applicable to a substation exchanger device disclosed in the present invention comprises the following steps:

First, the switch device receives a Generic Object Oriented Substation Events (GOOSE) packet; then, the switch device transmits a generic object-oriented substation event packet; and then, when the switch device receives the generic object guide During the substation event packet, copying and accessing the general object-oriented substation event packet is a copy of the general object-oriented substation event packet; then, when the switch device determines that the copy common object-oriented substation event packet triggers an abnormal state At the time of the event, an abnormal state event confirmation request is generated; then, the switch device transmits an abnormal state event confirmation request to the upstream switch device corresponding to the transmission of the generic object-oriented substation event packet; and then, when the switch device fails to self-upgrade the switch When the device receives the Ready response, an alert message is sent; then, the switch device receives the abnormal state event confirmation request from the downstream switch device corresponding to the receiving general object-oriented substation event packet; and then, when the switch device determines the exchange Device trigger and abnormal When the same event confirmation request event an abnormal state, generates a ready response; Finally, the transfer switch means responsive to a ready downstream switching device.

The apparatus and method disclosed by the present invention are as above, and the difference from the prior art is that the switch device copies and accesses the general object-oriented substation event packet, and when the switch device determines that the general object-oriented substation event packet triggers an abnormality In the case of a status event, the switch device generates an abnormal status event confirmation request and transmits it to the corresponding upstream switch device, and the switch device fails to receive a ready response from the upstream switch device to issue an alert message.

Through the above technical means, the present invention can achieve a technical effect of quickly and accurately knowing the switch device that initially triggers an abnormal state event to facilitate maintenance.

The embodiments of the present invention will be described in detail below with reference to the drawings and embodiments, so that the application of the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.

In the following, the switch device for a substation disclosed in the present invention will be described first. Referring to FIG. 1 and FIG. 1 is a block diagram of an apparatus suitable for use in a substation.

The invention is particularly suitable for use in a substation. The Intelligent Electronic Device (IED) in the substation transmits the Generic Object Oriented Substation Events (GOOSE) packet to the other through the exchanger device proposed by the present invention. The intelligent electronic device, through the design of the switch device of the present invention, can quickly and accurately know the switch device that initially triggers the abnormal state event, so that the maintenance personnel can connect the switch device or the switch device to each other. service.

The switch device 10 applicable to the substation disclosed by the present invention comprises: a packet receiving module 11, a packet transmitting module 12, a packet access control module 13, a packet determining module 14, a request transmitting module 15, and a warning The module 16, the request receiving module 17, the request determining module 18, and the request reply transmitting module 19.

The switch device 10 can be connected to the smart electronic device or other switch device 10 to provide the smart electronic device to transmit the universal object-oriented substation event packet to other smart electronic devices, that is, the packet receiving module of the switch device 10. 11 may be a smart electronic device or an upstream switch device (in order to distinguish from the switch device 10, where the other switch device 10 transmits the general object to the substation event packet to the switch device 10 is referred to as upstream exchange The device device receives the general object-oriented substation event packet.

When the packet receiving module 11 of the switch device 10 receives the general object-oriented substation event packet, the packet access control module 13 of the switch device 10 can control the packet access control of the chip through the Ethernet network. The universal object-oriented substation event packet is copied and accessed to copy the general object-oriented substation event packet, thereby performing subsequent packet determination processing.

At the same time, the switch device 10 establishes a packet mapping table, and the packet mapping table is a mapping relationship between the common object-oriented substation event packet and the input port. Specifically, it is assumed that the switch device 10 is An input device receives the first general object-oriented substation event packet and is copied to the first copy general object to the substation event packet, and the switch device 10 directs the first copy general object to the substation event packet. The relationship with the first input port is stored in the packet mapping table, which is merely illustrative and is not intended to limit the scope of application of the present invention.

The packet transfer module 12 of the switch device 10 can transmit a generic object-oriented substation event packet to a smart electronic device or a downstream switch device (for distinguishing it from the switch device 10, where the switch device 10 transmits the universal object The steering substation event packet is referred to as another downstream switch device (referred to as a downstream switch device), and the packet receiving module 11 of the switch device 10 and the packet transfer module 12 of the switch device 10 can provide a smart electronic device. Transfer general object-oriented substation event packets to other smart electronic devices.

After the packet access control module 13 of the switch device 10 copies and accesses the copy common object-oriented substation event packet, the packet judging module 14 of the switch device 10 will guide the replica general object to the substation event packet. The contents of the TATL, sqNum, APP ID, and goCBRef fields are determined to determine whether the copy of the generic object-oriented substation event packet triggers an abnormal state event of Timeout, Tampered, and Sequence disorder.

Specifically, the packet judging module 14 of the switch device 10 can determine whether the copy of the generic object-oriented substation event packet triggers the abnormal state of the Timeout according to the value of the TATL field in the event packet of the substation. The event judging module 14 of the switch device 10 can determine whether the copying of the general object-oriented substation event packet triggers an abnormal state event of the sequence disorder according to the value of the sqNum field in the replica general object-oriented substation event packet. The packet judging module 14 of the switch device 10 can determine whether the duplicate general object-oriented substation event packet triggers the Tampered abnormal state according to the APP ID and the content of the goCBRef field in the replica general object-oriented substation event packet. The events are merely illustrative here and are not intended to limit the scope of application of the present invention.

When the packet judging module 14 of the switch device 10 determines that the copy common object-oriented substation event packet triggers an abnormal state event, the corresponding abnormality is generated according to the abnormal state event triggered by the copy common object-oriented substation event packet. The status event confirmation request is transmitted to the corresponding upstream switch device via the packet transfer table established by the switch device via the request transfer module 15 of the switch device 10 to transmit an abnormal status event confirmation request.

Specifically, it is assumed that the packet judging module 14 of the switch device 10 determines that the replica general object-oriented substation event packet triggers the abnormal state event of the Timeout, and generates a Timeout abnormal state event confirmation request according to the abnormal state event of the Timeout, and exchanges The request delivery module 15 of the device 10 transmits a Timeout abnormal state event confirmation request to the corresponding upstream switch device, which is merely illustrative and is not intended to limit the scope of application of the present invention.

If the switch device 10 fails to receive a Ready response from the corresponding upstream switch device within a preset time, the alert module 16 of the switch device 10 generates a map according to the abnormal state event and the packet mapping table. And issuing a warning message, that is, the switch device 10 is the switch device 10 that initially triggers the abnormal state event; if the switch device 10 receives the ready response from the corresponding upstream switch device within the preset time, the switch Both the device 10 and the upstream switch device trigger the same abnormal state event, that is, the switch device 10 indicating that the switch device 10 does not initially trigger an abnormal state event, and the alert module 16 of the switch device 10 will not be in accordance with the abnormal state. The event and the packet 埠 mapping table generate and issue a warning message, which means that the switch device 10 is not the switch device 10 that initially triggers the abnormal state event.

Specifically, it is assumed that the copy common object-oriented substation event packet triggers the abnormal state event as a Timeout abnormal state event and the first copy general object-oriented substation event packet establishes a relationship with the first input port, and the warning mode of the switch device 10 The warning message generated by the group 16 is the first general object-oriented substation event packet triggering Timeout abnormal state event received from the first input port, which is merely an example, and is not limited to the application of the present invention. category.

The request receiving module 17 of the switch device 10 receives the abnormal state event confirmation request from the downstream switch device corresponding to the receiving general object-oriented substation event packet, and determines the switch device through the request judging module 18 of the switch device 10. 10 whether the same abnormal state event as the abnormal state event confirmation request is triggered, and if the request determination module 18 of the switch device 10 determines that the switch device 10 triggers the same abnormal state event as the abnormal state event confirmation request, a ready response is generated. And the request response module 19 of the switch device 10 transmits the ready response generated by the request determination module 18 of the switch device 10 to the corresponding downstream switch device, if the request determination module 18 of the switch device 10 determines When the switch device 10 does not trigger the same abnormal state event as the abnormal state event confirmation request, the ready response is not generated, and the request reply transmission module 19 of the switch device 10 does not transmit the ready response to the corresponding downstream switch. Device.

Next, an operation system and method according to an embodiment of the present invention will be described below with reference to an embodiment, and reference is also made to "2A", "2B", "3", and "4". FIG. 2A and FIG. 2B are flowcharts showing a method for applying a fault warning method for a substation exchanger device according to the present invention; FIG. 3 is a diagram showing a fault applicable to a substation exchanger device according to the present invention. A schematic diagram of the device architecture of the warning; "FIG. 4" shows a schematic diagram of the packet mapping of the switch device for the fault warning of the substation exchanger device.

The first smart electronic device 21 transmits the first general object-oriented substation event packet 31 to the third smart electronic device 23, and the first switch device 41 to the fifth switch device 45 respectively receive the first general object-oriented substation The event packet 31 and the second general object-oriented substation event packet 32 (step 101), the first switch device 41 to the fifth switch device 45 also respectively transmit the first general object-oriented substation event packet 31 and the first The two general object-oriented substation event packets 32 (step 102), and the first switch device 41 to the fifth switch device 45 respectively replicate the first general object-oriented substation event packet 31 and the second general object-oriented variable The post event packet 32 has provided subsequent access and determination (step 103).

The fourth smart electronic device 24 transmits the second general object-oriented substation event packet 32 to the second smart electronic device 22, and the first packet device 41 establishes a first packet mapping table 51, such as "Fig. 4 As shown in the middle part (A), the second packet mapping table 52 is established in the second switch device 42, as shown in part (B) of "Fig. 4", in the third switch device 43 A third packet mapping table 53 will be created. As shown in part (C) of "Fig. 4", a fourth packet mapping table 54 will be created in the fourth switch device 44, such as "Fig. 4". As shown in the middle (D) section, a fifth packet mapping table 55 is created in the fifth switch device 45, as shown in part (E) of "Fig. 4".

The second switch device 42, the third switch device 43, the fourth switch device 44, and the fifth switch device 45 respectively determine that the copied first general object-oriented substation event packet has triggered an abnormal state event of the Timeout At this time, the second switch device 42, the third switch device 43, the fourth switch device 44, and the fifth switch device 45 respectively generate a Timeout abnormal state event confirmation request 61 according to the abnormal state event of Timeout (step 104).

The second switch device 42 can transmit the Timeout abnormal state event confirmation request 61 to the third switch device 43 according to the second packet 埠 mapping table 52 (step 105, step 107), and the fourth switch device 44 according to the fourth The packet 埠 mapping table 54 can transmit the Timeout abnormal state event confirmation request 61 to the third switch device 43 (step 105, step 107), and the fifth switch device 45 can be based on the fifth packet 埠 mapping table 55. The Timeout abnormal state event confirmation request 61 is transmitted to the third switch device 43 (step 105, step 107).

Since the third switch device 43 and the second switch device 42, the fourth switch device 44, and the fifth switch device 45 both trigger the Timeout abnormal state event confirmation request 61, when the third switch device 43 is respectively from the second When the switch device 42, the fourth switch device 44, and the fifth switch device 45 receive the Timeout abnormal state event confirmation request 61, the third switch device 43 generates a ready response 62 (step 108) and transmits it to the second exchange, respectively. The device 42, the fourth switch device 44, and the fifth switch device 45 (step 109).

The second switch device 42, the fourth switch device 44, and the fifth switch device 45 can receive the ready response 62 from the third switch device 43 within a preset time, and the second switch device 42 will not be based on Timeout. The abnormal state event and the second packet mapping table 52 correspondingly generate and send a warning message, and the fourth switch device 44 will not generate and send a warning message according to the Timeout abnormal state event and the fourth packet mapping table 54. The five switch device 45 will not generate and issue a warning message corresponding to the Timeout abnormal state event and the fifth packet mapping table 55.

The third switch device 43 can transmit the Timeout abnormal state event confirmation request 61 to the first switch device 41 according to the third packet mapping table 53 (step 105, step 107), but the first switch device 41 does not. When the abnormal state event of the Timeout is triggered, when the first switch device 41 receives the Timeout abnormal state event confirmation request 61 from the third switch device 43, the first switch device 41 will not generate a ready response, that is, the third switch device 43 If the ready response is not received from the first switch device 41 within the preset time, the third switch device 43 generates and sends a warning message according to the Timeout abnormal state event and the third packet 埠 mapping table 53. An input of the first general object-oriented substation event packet triggers a timeout abnormal state event" (step 106), whereby the maintenance personnel can press the first switch device 41, the third switch device 43 or the first A switch between the exchanger unit 41 and the third exchanger unit 43 performs maintenance.

The first switch device 41, the third switch device 43, the fourth switch device 44, and the fifth switch device 45 respectively determine that the copied second general object-oriented substation event packet has triggered an abnormal state of the sequence disorder. Event, at this time, the first switch device 41, the third switch device 43, the fourth switch device 44, and the fifth switch device 45 respectively generate a Sequence disorder event status confirmation request 63 according to the abnormality event of the Sequence disorder (step 104).

The first switch device 41 can transmit the sequence disorder abnormal state event confirmation request 63 to the third switch device 43 according to the first packet 埠 mapping table 51 (step 105, step 107), and the fourth switch device 44 according to the first The four packet mapping table 54 can transmit the sequence disorder abnormal state event confirmation request 63 to the third switch device 43 (step 105, step 107), and the fifth switch device 45 according to the fifth packet 埠 mapping table 55 The Sequence disorder abnormal state event confirmation request 63 may be transmitted to the third switch device 43 (step 105, step 107).

Since the third switch device 43 and the first switch device 41, the fourth switch device 44, and the fifth switch device 45 both trigger the sequence disorder abnormal state event confirmation request 63, when the third switch device 43 respectively When the switch device 41, the fourth switch device 44, and the fifth switch device 45 receive the sequence disorder event status confirmation request 63, the third switch device 43 generates a ready response 64 (step 108) and transmits it to the first An exchanger device 41, a fourth switch device 44, and a fifth switch device 45 (step 109).

The first switch device 41, the fourth switch device 44, and the fifth switch device 45 may receive the ready response 64 from the third switch device 43 within a preset time, and the first switch device 41 will not depend on the Sequence. The exception abnormal state event and the first packet mapping table 51 generate and send a warning message, and the fourth switch device 44 will not generate and send a warning message according to the Sequence disorder abnormal state event and the fourth packet mapping table 54 correspondingly. The fifth switch device 45 will not generate and issue a warning message corresponding to the Sequence disorder abnormal state event and the fifth packet mapping table 55.

The third switch device 43 can transmit the sequence disorder abnormal state event confirmation request 63 to the second switch device 42 according to the third packet mapping table 53 (step 105, step 107), however the second switch device 42 The exception condition event of the sequence disorder is not triggered, and when the second switch device 42 receives the sequence disorder event status confirmation request 63 from the third switch device 43, the second switch device 42 will not generate a ready response, ie, the third exchange. The device device 43 fails to receive the ready response from the second switch device 42 within a preset time, and the third switch device 43 generates and issues a warning message according to the Sequence disorder abnormal state event and the third packet 埠 mapping table 53 correspondingly. "Sequence event abnormal condition event is triggered by the second general object-oriented substation event packet received from the second input port" (step 106), whereby the service personnel can access the second switch device 42 and the third switch The device 43 or the second exchanger device 42 is connected to the third exchanger device 43 for maintenance.

In summary, it can be seen that the difference between the present invention and the prior art is that the switch device copies and accesses the general object-oriented substation event packet, and when the switch device determines that the general object-oriented substation event packet triggers an abnormal state event When the switch device generates an abnormal state event confirmation request and transmits it to the corresponding upstream switch device, the switch device fails to receive a ready response from the upstream switch device to issue an alert message.

By means of this technical means, the existing problem of poor fault detection efficiency of the switch device suitable for the substation existing in the prior art can be solved, thereby realizing a quick and accurate exchange of the switch device for knowing the initial trigger abnormal state event for maintenance. Technical efficiency.

While the embodiments of the present invention have been described above, the above description is not intended to limit the scope of the invention. Any changes in the form and details of the embodiments may be made without departing from the spirit and scope of the invention. The scope of the invention is to be determined by the scope of the appended claims.

10‧‧‧Exchanger device

11‧‧‧Packet receiving module

12‧‧‧Packet transmission module

13‧‧‧Packet Access Control Module

14‧‧‧Package judgment module

15‧‧‧Request Transfer Module

16‧‧‧Warning module

17‧‧‧Request receiving module

18‧‧‧Request judgment module

19‧‧‧Request to reply to the transmission module

21‧‧‧First intelligent electronic device

22‧‧‧Second smart electronic device

23‧‧‧ Third intelligent electronic device

24‧‧‧The fourth intelligent electronic device

31‧‧‧ First General Object-Oriented Substation Event Packet

32‧‧‧Second General Object-Oriented Substation Event Packet

41‧‧‧First exchanger device

42‧‧‧Second exchanger device

43‧‧‧ Third exchange device

44‧‧‧fourth exchanger device

45‧‧‧ fifth exchanger device

51‧‧‧The first package and the screening table

52‧‧‧Second package and screening table

53‧‧‧The third package

54‧‧‧Fourth package

55‧‧‧The fifth package

61‧‧‧Timeout abnormal status event confirmation request

62‧‧‧Ready response

63‧‧‧Sequence disorder exception status event confirmation request

64‧‧‧ Ready to respond

Step 101‧‧‧Switch device receives general object-oriented substation event packet

Step 102‧‧‧Switch device transmits general object-oriented substation event packet

Step 103‧‧‧ When the switch device receives the general object-oriented substation event packet, copy and access the general object-oriented substation event packet to copy the general object-oriented substation event packet

Step 104‧‧‧ Generate an abnormal state event confirmation request when the switch device determines that the copy common object-oriented substation event packet triggers an abnormal state event

Step 105‧‧‧ The switch device transmits an abnormal state event confirmation request to the upstream switch device corresponding to the transmission of the general object-oriented substation event packet

Step 106‧‧‧When the switch device fails to receive a ready response from the upstream switch device, an alert message is sent

Step 107‧‧‧ The switch device receives the abnormal state event confirmation request from the downstream switch device corresponding to the receiving general object-oriented substation event packet

Step 108‧‧‧ Generate a ready response when the switch device determines that the switch device triggers the same abnormal state event as the exception status event confirmation request

Step 109‧‧‧Switch device transmits ready response to downstream switch device

1 is a block diagram of an apparatus for an exchanger device of the present invention applicable to a substation. 2A and 2B are flow charts showing a method for applying a fault warning method to a substation exchanger device according to the present invention. FIG. 3 is a schematic diagram showing the structure of a device for applying a fault warning to a substation exchanger device according to the present invention. FIG. 4 is a schematic diagram showing a packet 埠 mapping table of a switch device suitable for a fault warning of a substation exchanger device according to the present invention.

Claims (10)

A switch device suitable for a substation, comprising: a packet receiving module for receiving a Generic Object Oriented Substation Events (GOOSE) packet; and a packet transmitting module for transmitting the device a general object-oriented substation event packet; a packet access control module, when the packet receiving module receives the general object-oriented substation event packet, copying and accessing the universal object-oriented substation The event packet is a copy general object-oriented substation event packet; a packet judging module generates an abnormal state event confirmation request when it is determined that the copy general object-oriented substation event packet triggers an abnormal state event; Requesting a transmission module, transmitting the abnormal state event confirmation request to an upstream switch device corresponding to the sending of the universal object-oriented substation event packet; an alert module, when failing to receive a ready from the upstream switch device (Ready In response, a warning message is sent; a request receiving module is used to receive the general object-oriented substation The downstream switch device corresponding to the packet receives the abnormal state event confirmation request; and a request determining module generates the ready response when it is determined that the switch device triggers the same abnormal state event as the abnormal state event confirmation request And requesting a reply to the transmitting module to transmit the ready response to the downstream switch device. The switch device for a substation according to claim 1, wherein the request transfer module is configured to transmit the abnormal state event confirmation request to an upstream switch according to a packet mapping table established by the switch device. Device. The switch device for a substation according to claim 1, wherein the packet judging module is configured to determine a TATL, a sqNum, an APP ID, and a goCBRef field of the copy general object-oriented substation event packet. It is determined that the copy general object is directed to the substation event packet triggering an abnormal state event of timeout, Tampered, and sequence disorder. The switch device for a substation according to claim 1, wherein the packet receiving module receives the universal object-oriented power conversion from an Intelligent Electronic Device (IED) or an upstream switch device. The event packet is transmitted; the packet transfer module transmits the general object-oriented substation event packet to other smart electronic devices or downstream switch devices. The switch device for a substation according to claim 1, wherein the packet access control module is a packet access control through an Ethernet switch chip to guide the general object to a substation. Event packets are copied and accessed. A fault warning method suitable for a substation switch device, comprising the steps of: the switch device receiving a Generic Object Oriented Substation Events (GOOSE) packet; and the switch device transmitting the universal object oriented change An event packet of the electric station; when the switch device receives the general object-oriented substation event packet, copying and accessing the general object-oriented substation event packet as a copy general object-oriented substation event packet; Generating an abnormal state event confirmation request when the switch device determines that the copy general object-oriented substation event packet triggers an abnormal state event; and the switch device transmits the abnormal state event confirmation request to send the general object oriented change The upstream switch device corresponding to the electricity event packet; when the switch device fails to receive a Ready response from the upstream switch device, an alert message is sent; the switch device receives the general object-oriented substation event The downstream switch device corresponding to the packet receives the abnormal state event confirmation request; and when the switch device determines that the switch device triggers the same abnormal state event as the abnormal state event confirmation request, generating the ready response; and the switch The device transmits the ready response to the downstream switch device. The fault warning method applicable to a substation switch device according to claim 6, wherein the switch device transmits the abnormal state event confirmation request to the sending station according to a packet mapping table established by the switch device. The general object is directed to the upstream switch device corresponding to the substation event packet. The fault warning method applicable to a substation switch device according to claim 6, wherein the switch device determines a TATL, a sqNum, an APP ID, and a goCBRef field of the duplicate general object-oriented substation event packet. It is determined that the copy general object is directed to the substation event packet triggering an abnormal state event of timeout, Tampered, and sequence disorder. A fault warning method suitable for a substation exchanger device as described in claim 6 of the patent application, wherein the switch device is an Intelligent Electronic Device (IED) Or the upstream switch device receives the universal object-oriented substation event packet; the switch device transmits the general object-oriented substation event packet to other smart electronic device or downstream switch device. A fault alerting method for a substation switch device as described in claim 6 wherein the switch device is a packet access control via an Ethernet switch chip to direct the general object to a substation event packet. Copy and access.