A method for monitoring the operating status of substations in a power system

Abstract

This invention discloses a method for monitoring the operation status of substations in a power system, applied to safety-controlled substations. The monitoring method includes: acquiring the operation data of safety-controlled equipment at relevant substation sites of a remote backup automatic transfer system (SALTS), including the channel status corresponding to the substation and basic SALTS information; and determining the operation mode of the remote SALTS based on the channel status and basic SALTS information. This method for monitoring the operation status of substations in a power system can replace manual on-site verification of the operation mode of the remote SALTS, thereby reducing verification errors and improving verification efficiency.

Description

Technical Field

[0001] This invention relates to the field of power system automation technology, and in particular to a method for monitoring the operation status of a substation in a power system. Background Technology

[0002] With the continuous expansion of power system scale and rapid load growth, the chain-structure series power supply method is still prevalent. In order to ensure a continuous and reliable power supply to the power grid, substations are generally equipped with automatic equipment that trips the main power supply switch and switches on the backup power supply switch when the main power supply fails.

[0003] Currently, determining the operating mode of the remote automatic transfer system for substations requires dispatch personnel to conduct on-site verification at the relevant substation sites to confirm whether the operating mode of the remote automatic transfer system is consistent with the set target mode.

[0004] The existing remote automatic transfer system for substations is inefficient and prone to misjudgments. Summary of the Invention

[0005] This invention provides a method for monitoring the operation status of substations in a power system. This method can replace manual verification, thereby reducing verification errors and improving verification efficiency.

[0006] This invention provides a method for monitoring the operation status of a substation in a power system, applied to a remote automatic transfer system (RAS) substation. The monitoring method includes: acquiring the operation data of the RAS equipment at relevant substation sites of the remote automatic transfer system, the operation data including the channel status corresponding to the substation and the basic information of the RAS of the substation; and determining the operation mode of the remote RAS based on the channel status corresponding to the substation and the basic information of the RAS of the substation.

[0007] Optionally, after obtaining the operating data of the safety and automatic equipment at the relevant substation sites of the remote backup automatic transfer system, the method further includes: visually displaying at least a portion of the control data of the safety and automatic equipment at each relevant substation site of the remote backup automatic transfer system according to the input command.

[0008] Optionally, the basic information of the substation's automatic transfer switch includes information on the charging status of the remote automatic transfer switch; the operation mode of the remote automatic transfer switch system is determined based on the operating data, including: determining whether the remote automatic transfer switches of each substation have been fully charged based on the charging status information of the remote automatic transfer switches corresponding to each substation in the remote automatic transfer switch system; determining the judgment logic for the operation mode of the remote automatic transfer switch system based on the number of substations included in the remote automatic transfer switch system, so as to determine the operation mode of the remote automatic transfer switch system based on the judgment logic.

[0009] Optionally, the channel status includes normal and abnormal. The judgment logic for the operation mode of the remote automatic transfer system is determined based on the number of substations included in the system. This logic determines the operation mode of the remote automatic transfer system, including: when the number of substations included in the system is 4, if all remote automatic transfers of all substations in the system are fully charged, the channel status of the intermediate substation is used to determine whether the channel between the intermediate substations is normal; if so, the channel status of both intermediate substations is not normal. When the power supply is connected, the operating mode of the remote automatic transfer system is determined to be the operation mode of the remote automatic transfer system with four substations connected in series. When the power supply is connected to either of the two substations in the middle position, it is determined whether the channel between the two substations in the middle position is normal. If it is normal, the operating mode of the remote automatic transfer system is determined to be the operation mode of the remote automatic transfer system with four substations connected in series. If it is abnormal, the operating mode of the remote automatic transfer system is determined to be the operation mode of the substation at the first edge position connected in series with the adjacent substation, and the substation at the second edge position connected in series with the adjacent substation.

[0010] Optionally, the judgment logic for determining the operating mode of the remote automatic transfer system is determined based on the number of substations included in the remote automatic transfer system. This judgment logic further includes: when the number of substations included in the remote automatic transfer system is equal to 4, if the remote automatic transfer systems of all substations in the remote automatic transfer system are not fully charged, determining whether the first set substation group is fully charged, and if not, determining whether all substations in the second set substation group are fully charged; wherein one of the first and second set substation groups includes a substation at a first edge position and two substations at a middle position, and the other includes a substation at a second edge position and two substations at a middle position; when all substations in the second set substation group are not fully charged, determining whether the remote automatic transfer systems of any two adjacent substations in the remote automatic transfer system are fully charged; when the remote automatic transfer systems of any two adjacent substations are fully charged, determining that the operating mode of the remote automatic transfer system is the series power supply mode of the two adjacent substations.

[0011] Optionally, the judgment logic for determining the operating mode of the remote automatic transfer system is determined based on the number of substations included in the remote automatic transfer system. The judgment logic for determining the operating mode of the remote automatic transfer system also includes: when the number of substations included in the remote automatic transfer system is equal to 4, if the remote automatic transfer of each substation in the remote automatic transfer system has not been fully charged, and the first set substation group has been fully charged, the operating mode of the remote automatic transfer system is determined to be the series power supply mode of each substation in the first set substation group.

[0012] Optionally, the judgment logic for determining the operating mode of the remote automatic transfer system is determined based on the number of substations included in the remote automatic transfer system. The judgment logic for determining the operating mode of the remote automatic transfer system also includes: when the number of substations included in the remote automatic transfer system is equal to 4, if the remote automatic transfer of each substation in the remote automatic transfer system has not been fully charged, the first set substation group has not been fully charged, and the second set substation group has been fully charged, the operating mode of the remote automatic transfer system is determined to be the series power supply mode of each substation in the second set substation group.

[0013] Optionally, the logic for determining the operating mode of the remote automatic transfer system (RASPS) based on the number of substations included in the RASPS system, and the determination of the operating mode based on the logic, further includes: when the number of substations included in the RASPS system is equal to 3, if all the RASPS of each substation in the RASPS system have completed charging, the operating mode of the RASPS system is determined to be the series power supply mode of 3 substations; when the number of substations included in the RASPS system is equal to 3, if not all the RASPS of each substation in the RASPS system have completed charging, the operating mode is determined to be... Whether the remote backup automatic transfer system of the substation at the intermediate position and the substation at the first edge position, or the substation at the intermediate position and the substation at the second edge position, has been fully charged; if the remote backup automatic transfer system of the substation at the intermediate position and the substation at the first edge position has been fully charged, the operating mode of the remote backup automatic transfer system is determined to be the series power supply mode of the substation at the intermediate position and the substation at the first edge position; if the remote backup automatic transfer system of the substation at the intermediate position and the substation at the second edge position has been fully charged, the operating mode of the remote backup automatic transfer system is determined to be the series power supply mode of the substation at the intermediate position and the substation at the second edge position.

[0014] Optionally, the judgment logic for determining the operating mode of the remote automatic transfer system is determined based on the number of substations included in the remote automatic transfer system. The judgment logic for determining the operating mode of the remote automatic transfer system also includes: when the number of substations included in the remote automatic transfer system is equal to 2, if all the remote automatic transfer switches of each substation in the remote automatic transfer system have been fully charged, the operating mode of the remote automatic transfer system is determined to be the operation mode of the remote automatic transfer system consisting of 2 substations connected in series; if not all the remote automatic transfer switches of each substation in the remote automatic transfer system have been fully charged, the remote automatic transfer system is determined to have not been successfully established.

[0015] Optionally, the operational data may also include the location of the open loop point and the distance from the open loop point; the basic information of the substation's automatic transfer switch may also include information on the local automatic transfer switch charging status.

[0016] The technical solution of this invention obtains the operation data of the safety and automatic transfer devices at relevant substation sites of the remote backup automatic transfer system. The operation data includes the channel status of the substation and the basic information of the backup automatic transfer system of the substation. Based on the channel status of the substation and the basic information of the backup automatic transfer system of the substation, the operation mode of the remote backup automatic transfer system is determined. This can replace manual on-site verification of the operation mode of the remote backup automatic transfer system, thereby reducing verification errors and improving verification efficiency. Attached Figure Description

[0017] Figure 1 This is a flowchart of a substation operation status monitoring method for a power system provided in an embodiment of the present invention;

[0018] Figure 2 This is a topology diagram of a remote backup automatic transfer system provided in an embodiment of the present invention;

[0019] Figure 3 This is a flowchart of another method for monitoring the operation status of a substation in a power system, provided by an embodiment of the present invention.

[0020] Figure 4 This is a flowchart of another method for monitoring the operation status of a substation in a power system, provided by an embodiment of the present invention.

[0021] Figure 5 This is another remote backup automatic transfer system topology diagram provided in the embodiments of the present invention;

[0022] Figure 6 This is a flowchart of another method for monitoring the operation status of a substation in a power system, provided by an embodiment of the present invention.

[0023] Figure 7 This is a flowchart of another method for monitoring the operation status of a substation in a power system, provided by an embodiment of the present invention. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0025] Figure 1 This is a flowchart illustrating a method for monitoring the operating status of a substation in a power system, provided by an embodiment of the present invention. This embodiment is applicable to monitoring the operating status of substations. The method in this embodiment can be executed by a substation operating status monitoring device, which can be implemented in hardware and / or software.

[0026] like Figure 1As shown, the substation operation status monitoring method of a power system may include:

[0027] S101. Obtain the operating data of the safety and automatic transfer devices at relevant substation sites of the remote backup automatic transfer system.

[0028] Remote automatic transfer systems include, but are not limited to, 110kV, 35kV, and 10kV remote automatic transfer systems. These systems have a remote automatic transfer function. This function primarily involves the automatic transfer device detecting a loss of local main power supply at a substation. When the substation has no backup power, it sends an information stream to adjacent substations. This information stream includes the line voltage and open-loop location information of the linked substations and issues a closing command. Upon receiving the closing command request from the substation, the remote substation directly connects its backup power supply to restore power to the substation. The remote automatic transfer function is suitable for power systems with dual-ended power supplies and single- or double-circuit chain-type series power supplies.

[0029] The operational data includes the location of the open-loop point, the distance from the open-loop point, the channel status corresponding to the substation, and the basic information of the substation's automatic transfer switch. The basic information of the substation's automatic transfer switch includes information on the charging status of remote automatic transfer switches and information on the charging status of local automatic transfer switches.

[0030] Safety and stability automatic devices are a general term for various automatic devices used to prevent power system instability, prevent the expansion of power system accidents, prevent power grid collapse and large-scale power outages, and restore the normal operation of the power system.

[0031] Automatic transfer switch (ATS), also known as a backup power supply automatic transfer device, is an important secondary equipment in substations and a type of safety device. When the main power supply is disconnected due to power system failure or other reasons, it can quickly and automatically switch on a backup power supply, restoring power supply to the greatest extent possible. ATS improves the reliability and stability of the power system. ATS can perform both remote and local ATS functions, and one ATS is installed at each substation site.

[0032] The automatic transfer switch (ATS) is equipped with two communication channels for communicating with the ATS at adjacent substations. Furthermore, the ATS device has specific requirements regarding the order in which these channels are accessed.

[0033] Figure 2 This is a topology diagram of a remote backup automatic transfer system provided in an embodiment of the present invention. (Reference) Figure 2 Channel 1 corresponds to the left station. For a specific station, it is connected and communicates with the backup automatic transfer device of the left station through Channel 1. Channel 2 corresponds to the right station. It is connected and communicates with the backup automatic transfer device of the right station through Channel 2.

[0034] To determine the distance between each station and the open-loop point, the information stream sent by the backup automatic transfer switch (SATS) includes the coordinates of its distance from the open-loop point (number of units away). When one side of the SATS at a non-open-loop point receives the information stream containing the open-loop point information, it automatically collects the position of the incoming switch (open-loop point position), extracts the coordinates of its distance from the open-loop point, increments it by 1 to form the coordinates of its own station, and updates the coordinates of the information stream forwarded to the other side. (Continue to refer to...) Figure 2 For example, 0 is the open loop point, 1 is the station adjacent to the open loop point, 2 is the station separated from the open loop point by a substation, and so on.

[0035] S102. Determine the operation mode of the remote automatic transfer system based on the channel status corresponding to the substation and the basic information of the substation's automatic transfer system.

[0036] The operating modes include, but are not limited to, the operation modes of four substations connected in series, three substations connected in series, and two substations connected in series. By comparing the determined operating mode of the remote automatic transfer switch with the target mode set by the dispatcher, it can be determined whether the operating mode of the remote automatic transfer switch system meets expectations, thus improving the efficiency of verification.

[0037] The technical solution of this invention obtains the operation data of the safety and automatic transfer devices at relevant substation sites of the remote backup automatic transfer system. The operation data includes the channel status of the substation and the basic information of the backup automatic transfer system of the substation. Based on the channel status of the substation and the basic information of the backup automatic transfer system of the substation, the operation mode of the remote backup automatic transfer system is determined. This can replace manual on-site verification of the operation mode of the remote backup automatic transfer system, thereby reducing verification errors and improving verification efficiency.

[0038] Figure 3 This is a flowchart of another method for monitoring the operation status of a substation in a power system, provided by an embodiment of the present invention. It is further optimized and expanded based on the above embodiments and can be combined with various optional technical solutions in the above embodiments. For example... Figure 3 As shown, the method may include:

[0039] S301. Obtain the operating data of the safety and automatic transfer devices at relevant substation sites of the remote backup automatic transfer system.

[0040] S302. Based on the input command, visualize at least a portion of the control data of the automatic control equipment at each relevant substation site of the remote backup automatic transfer system.

[0041] The visualization includes, but is not limited to, the operating modes of each substation, the topology diagram of the remote automatic transfer switch (ATS) system, and the charging status information of the ATS. The specific process of visualization includes: modeling the ATS system of each substation, constructing different ATS topology diagrams, collecting and correlating key data in the topology diagrams, and drawing relevant conclusions through logical judgment of the key data. This allows on-duty dispatchers and maintenance units to quickly obtain accurate information, reducing communication time between dispatchers and maintenance units and improving their work efficiency. Optional key data includes, but is not limited to, the location of the open-loop point, the status of channel 1, the status of channel 2, the charging status of the local ATS, the charging status of the remote ATS, and the distance from the open-loop point.

[0042] S303. Determine whether all remote backup automatic transfer switches of each substation have been fully charged based on the charging status information of the remote backup automatic transfer switches corresponding to each substation in the remote backup automatic transfer system.

[0043] Automatic transfer switches (ATS) include local line ATS, local bus tie ATS, and remote ATS charging modes. The ATS can display the current charging mode status.

[0044] The condition for successful charging via remote automatic transfer switch (ATS) is that the communication status of the corresponding channel at the substation is normal. In other words, the condition for successful charging via remote automatic transfer switch (ATS) is that any substation site must form a remote automatic transfer switch system with at least one adjacent site.

[0045] S304. Determine the judgment logic for the operation mode of the remote automatic transfer system based on the number of substations included in the remote automatic transfer system, and judge the operation mode of the remote automatic transfer system based on the judgment logic.

[0046] The remote automatic transfer switch system can include 4, 3, or 2 substations. Different decision-making logics correspond to different numbers of substations in the remote automatic transfer switch system.

[0047] Figure 4 This is a flowchart of another power system substation operation status monitoring method provided by an embodiment of the present invention, such as... Figure 4 As shown, the method may include:

[0048] S401. Obtain the operating data of the safety and automatic transfer devices at relevant substation sites of the remote backup automatic transfer system.

[0049] S402. When the number of substations included in the remote automatic transfer system is equal to 4, determine whether the remote automatic transfer of each substation in the remote automatic transfer system has been fully charged.

[0050] Continue to refer to Figure 2When all stations from "A-B-C-D" have completed charging, it means that station A and its neighboring station B form a remote backup automatic transfer system, and station D and its neighboring station C form a remote backup automatic transfer system. At this time, the operation mode of the remote backup automatic transfer system is either the operation mode of two substations, "AB remote backup automatic transfer system" and "CD remote backup automatic transfer system", or the operation mode of four substations, "ABCD remote backup automatic transfer system". When the number of substations included in the remote automatic transfer system is equal to 4, if the remote automatic transfer switches of each substation in the remote automatic transfer system are not fully charged, the following situations may occur: the remote automatic transfer switches of substation "ABC" are fully charged, but those of substation "D" are not; the remote automatic transfer switches of substations "BCD" are fully charged, but those of substation "A" are not; the remote automatic transfer switches of substations "AB" are fully charged, but those of other substations are not; the remote automatic transfer switches of substation "BC" are fully charged, but those of other substations are not; the remote automatic transfer switches of substation "CD" are fully charged, but those of other substations are not; if all the remote automatic transfer switches of substations "ABCD" are not fully charged, the remote automatic transfer system has not been successfully established. Therefore, when the number of substations included in the remote backup automatic transfer system is equal to 4, if all remote backup automatic transfers of each substation in the remote backup automatic transfer system have been fully charged, then S4031 is executed; if not all remote backup automatic transfers of each substation in the remote backup automatic transfer system have been fully charged, then S4032 is executed.

[0051] S4031. Determine whether the channels between intermediate substations are normal based on the channel status corresponding to the intermediate substation in the remote automatic transfer system.

[0052] Continue to refer to Figure 2 Specifically, if the communication channels between the intermediate substations are normal, and both intermediate substations are not connected to power, the remote automatic transfer system has only one open-loop point. Therefore, there are no "AB remote automatic transfer system" or "CD remote automatic transfer system". In this case, it can be directly determined that the remote automatic transfer system operates in a mode where four substations are connected in series.

[0053] Figure 5 This is another remote backup automatic transfer system topology diagram provided by an embodiment of the present invention. Figure 5 The diagram illustrates the power connection configuration for "Station C" in the middle position. (Reference) Figure 5With either of the two intermediate substations connected to a power source, the remote automatic transfer switch (RAS) system has multiple open-loop points, resulting in operating modes such as "AB remote automatic transfer switch system" and "CD remote automatic transfer switch system". It is necessary to determine whether the communication channel between the two intermediate substations is normal. If normal, the operating mode of the RAS system is determined to be a four-substation series power supply mode. If abnormal, the operating mode is determined to be a series power supply mode between the first edge substation and its adjacent substation, and between the second edge substation and its adjacent substation. Therefore, if the communication channel between the intermediate substations is normal, S4041 is executed; if the communication channel between the intermediate substations is abnormal, S4042 is executed.

[0054] S4032. Determine whether all substations in the first set substation group are fully charged.

[0055] The first designated substation group includes either a substation at a first edge location and two substations at an intermediate location, or a substation at a second edge location and two substations at an intermediate location. (Continue to refer to...) Figure 2 For example, the first set substation group is "ABC substation". If all substations in the first set substation group have completed charging, then S4043 is executed; if not all substations in the first set substation group have completed charging, then S4044 is executed.

[0056] S4041. The operating mode of the remote backup automatic transfer system is determined to be the operation mode of the remote backup automatic transfer system consisting of four substations connected in series.

[0057] S4042. The operating mode of the remote backup automatic transfer system is determined to be the series power supply between the substation at the first edge position and the adjacent substation, and the series power supply between the substation at the second edge position and the adjacent substation.

[0058] The substation at the first edge location can be a substation adjacent to the first power source; the substation at the second edge location can be a substation adjacent to the second power source.

[0059] S4043. Determine the operating mode of the remote backup automatic transfer system as the series power supply mode of each substation in the first set substation group.

[0060] S4044. Determine whether all substations in the second set substation group have completed charging.

[0061] The second designated substation group includes either a substation at the first edge location and two substations at the middle location, or a substation at the second edge location and two substations at the middle location. (Continue to refer to...) Figure 2 For example, the second substation group is designated as "BCD Substation".

[0062] If all substations in the second set substation group have completed charging, then execute S4051; if not all substations in the second set substation group have completed charging, then execute S4052.

[0063] S4051. Determine the operating mode of the remote backup automatic transfer system as the series power supply mode of each substation in the second set substation group.

[0064] S4052. Determine whether the remote backup automatic transfer systems of any two adjacent substations in the remote backup automatic transfer system have been fully charged.

[0065] Continue to refer to Figure 2 Any two adjacent substations include substations "AB", "BC", and "CD".

[0066] If the remote backup automatic transfer systems of any two adjacent substations in the remote backup automatic transfer system are fully charged, then execute S4061; if the remote backup automatic transfer systems of any two adjacent substations in the remote backup automatic transfer system are not fully charged, then execute S4062.

[0067] S4061. When the remote backup automatic transfer system of any two adjacent substations is fully charged, the operating mode of the remote backup automatic transfer system shall be determined as the series power supply mode of the two adjacent substations.

[0068] For details, please refer to [link / reference]. Figure 2 When all remote backup automatic transfer systems of substation "AB" are fully charged, the operating mode of the remote backup automatic transfer system is determined to be "AB remote backup automatic transfer system"; when all remote backup automatic transfer systems of substation "BC" are fully charged, the operating mode of the remote backup automatic transfer system is determined to be "BC remote backup automatic transfer system"; when all remote backup automatic transfer systems of substation "CD" are fully charged, the operating mode of the remote backup automatic transfer system is determined to be "CD remote backup automatic transfer system".

[0069] S4062. It has been determined that the remote backup automatic transfer system has not been successfully established.

[0070] Figure 6 This is a flowchart of another power system substation operation status monitoring method provided by an embodiment of the present invention, such as... Figure 6 As shown, the method may include:

[0071] S601. Obtain the operating data of the safety and automatic transfer devices at relevant substation sites of the remote backup automatic transfer system.

[0072] S602. When the number of substations included in the remote automatic transfer system is equal to 3, determine whether the remote automatic transfer of each substation in the remote automatic transfer system has been fully charged.

[0073] If all remote automatic transfer switches in the remote backup system of each substation have completed charging, then execute S6031; if not all remote automatic transfer switches in the remote backup system of each substation have completed charging, then execute S6032.

[0074] S6031. The operating mode of the remote backup automatic transfer system is determined to be the operation mode of the remote backup automatic transfer system consisting of three substations connected in series.

[0075] S6032. Determine whether the remote automatic transfer switches of the substations at the middle position and the first edge position have been fully charged.

[0076] For details, please refer to [link / reference]. Figure 2 When the number of substations included in the remote automatic transfer system is equal to 3, the substation in the middle position is "B station", and the substation at the first edge position is "A station" or "C station". Determining whether the remote automatic transfer systems of the substation in the middle position and the substation at the first edge position are fully charged is equivalent to determining whether the remote automatic transfer systems of "B station-C station" are fully charged, or determining whether the remote automatic transfer systems of "A station-B station" are fully charged.

[0077] If the remote backup automatic transfer switches of the substations at the intermediate and first edge locations are fully charged, then execute S6041; if the remote backup automatic transfer switches of the substations at the intermediate and first edge locations are not fully charged, then execute S6042.

[0078] S6041. The operating mode of the remote backup automatic transfer system is determined to be the series power supply mode between the substation in the middle position and the substation in the first edge position.

[0079] S6042. Determine whether the remote backup automatic transfer switches of the substations in the middle position and the second edge position have been fully charged.

[0080] For details, please refer to [link / reference]. Figure 2 When the number of substations included in the remote automatic transfer system is equal to 3, the substation in the middle position is "station B", and the substation at the second edge position is "station A" or "station C". Determining whether the remote automatic transfer systems of the substation in the middle position and the substation at the second edge position are fully charged is equivalent to determining whether the remote automatic transfer systems of "station B-station C" are fully charged, or determining whether the remote automatic transfer systems of "station A-station B" are fully charged.

[0081] If the remote backup automatic transfer switches of the substations at the intermediate and the second edge locations are fully charged, then execute S6051; if the remote backup automatic transfer switches of the substations at the intermediate and the second edge locations are not fully charged, then execute S6052.

[0082] S6051. The operating mode of the remote backup automatic transfer system is determined to be the series power supply mode of the substation in the middle position and the substation in the second edge position.

[0083] S6052. It has been determined that the remote backup automatic transfer system has not been successfully established.

[0084] Figure 7 This is a flowchart of another power system substation operation status monitoring method provided by an embodiment of the present invention, such as... Figure 7 As shown, the method may include:

[0085] S701. Obtain the operating data of the safety and automatic transfer devices at relevant substation sites of the remote backup automatic transfer system.

[0086] S702. When the number of substations included in the remote automatic transfer system is equal to 2, determine whether the remote automatic transfer of each substation in the remote automatic transfer system has been fully charged.

[0087] If all remote backup automatic transfer switches in each substation of the remote backup automatic transfer system have completed charging, then execute S7031.

[0088] If the remote backup automatic transfer system of each substation has not been fully charged, then S7032 will be executed.

[0089] S7031. The operating mode of the remote backup automatic transfer system is determined to be the operation mode of the remote backup automatic transfer system being supplied by two substations in series.

[0090] S7032. It has been determined that the remote backup automatic transfer system has not been successfully established.

[0091] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for monitoring the operating status of a substation in a power system, applied to an automated substation, characterized in that, The monitoring method includes: Obtain the operation data of the safety and automatic transfer devices at relevant substation sites of the remote backup automatic transfer system. The operation data includes the channel status corresponding to the substation and the basic information of the backup automatic transfer system of the substation. The operation mode of the remote automatic transfer system is determined based on the channel status corresponding to the substation and the basic information of the automatic transfer backup system of the substation. The basic information of the substation's automatic transfer switch includes information on the remote automatic transfer switch charging status; the operating mode of the remote automatic transfer switch system is determined based on the operating data, including: Based on the charging status information of the remote backup automatic transfer system for each substation, it is determined whether the remote backup automatic transfer system for each substation has been fully charged. The operating mode of the remote automatic transfer system is determined based on the number of substations included in the remote automatic transfer system, and the operating mode of the remote automatic transfer system is determined based on the determination logic. The channel status includes normal channel and abnormal channel; the judgment logic for determining the operating mode of the remote automatic transfer system based on the number of substations included in the remote automatic transfer system, and the judgment logic for determining the operating mode of the remote automatic transfer system, includes: When the number of substations included in the remote backup automatic transfer system is equal to 4, if all the remote backup automatic transfers of each substation in the remote backup automatic transfer system have been fully charged, the channel status between the substations at the middle position of the remote backup automatic transfer system is used to determine whether the channel is normal. If so, and both substations in the middle are not connected to power, the operating mode of the remote backup automatic transfer system is determined to be the operating mode of the remote backup automatic transfer system consisting of four substations connected in series. If either of the two substations in the middle position is connected to a power source, determine whether the channel between the two substations in the middle position is normal. If it is normal, determine that the operation mode of the remote backup automatic transfer system is the operation mode of the remote backup automatic transfer system being connected to the four substations in series. If it is abnormal, determine that the operation mode of the remote backup automatic transfer system is the operation mode of the substation at the first edge position being connected to the adjacent substation in series, and the substation at the second edge position being connected to the adjacent substation in series.

2. The substation operation status monitoring method according to claim 1, characterized in that, After obtaining the operating data of the safety and automatic transfer devices at the relevant substation sites of the remote backup automatic transfer system, the following is also included: Based on the input command, at least a portion of the control data of the automatic control equipment at each relevant substation site of the remote backup automatic transfer system is visualized.

3. The substation operation status monitoring method according to claim 1, characterized in that, The judgment logic for determining the operating mode of the remote automatic transfer system based on the number of substations included in the remote automatic transfer system, and the judgment logic for determining the operating mode of the remote automatic transfer system, further includes: When the number of substations included in the remote automatic transfer system is equal to 4, if the remote automatic transfer of each substation in the remote automatic transfer system has not been fully charged, it is determined whether the first set substation group has been fully charged, and if not, it is determined whether each substation in the second set substation group has been fully charged; wherein one of the first set substation group and the second set substation group includes the substation at the first edge position and the two substations at the middle position, and the other includes the substation at the second edge position and the two substations at the middle position; If all the substations in the second set substation group have not been fully charged, determine whether the remote backup automatic transfer system of any two adjacent substations in the remote backup automatic transfer system has been fully charged. When the remote backup automatic transfer systems of any two adjacent substations are fully charged, the operating mode of the remote backup automatic transfer system is determined to be the series power supply mode of the two adjacent substations.

4. The substation operation status monitoring method according to claim 3, characterized in that, The judgment logic for determining the operating mode of the remote automatic transfer system based on the number of substations included in the remote automatic transfer system, and the judgment logic for determining the operating mode of the remote automatic transfer system, further includes: When the number of substations included in the remote backup automatic transfer system is equal to 4, if the remote backup automatic transfer of each substation in the remote backup automatic transfer system has not been fully charged, and the first set substation group has been fully charged, the operation mode of the remote backup automatic transfer system is determined to be the operation mode of series power supply of each substation in the first set substation group.

5. The substation operation status monitoring method according to claim 3, characterized in that, The judgment logic for determining the operating mode of the remote automatic transfer system based on the number of substations included in the remote automatic transfer system, and the judgment logic for determining the operating mode of the remote automatic transfer system, further includes: When the number of substations included in the remote backup automatic transfer system is equal to 4, if the remote backup automatic transfer of each substation in the remote backup automatic transfer system is not fully charged, the first set substation group is not fully charged, and the second set substation group is fully charged, then the operation mode of the remote backup automatic transfer system is determined to be the operation mode of series power supply of each substation in the second set substation group.

6. The substation operation status monitoring method according to claim 1, characterized in that, The operational data also includes the location of the open loop point and the distance from the open loop point; the basic information of the substation's automatic transfer switch also includes information on the local automatic transfer switch charging status.

7. A method for monitoring the operating status of a substation in a power system, applied to an automated substation, characterized in that, The monitoring method includes: Obtain the operation data of the safety and automatic transfer devices at relevant substation sites of the remote backup automatic transfer system. The operation data includes the channel status corresponding to the substation and the basic information of the backup automatic transfer system of the substation. The operation mode of the remote automatic transfer system is determined based on the channel status corresponding to the substation and the basic information of the automatic transfer backup system of the substation. The basic information of the substation's automatic transfer switch includes information on the remote automatic transfer switch charging status; the operating mode of the remote automatic transfer switch system is determined based on the operating data, including: Based on the charging status information of the remote backup automatic transfer system for each substation, it is determined whether the remote backup automatic transfer system for each substation has been fully charged. The operating mode of the remote automatic transfer system is determined based on the number of substations included in the remote automatic transfer system, and the operating mode of the remote automatic transfer system is determined based on the determination logic. The step of determining the operating mode of the remote automatic transfer system based on the number of substations included in the remote automatic transfer system, and determining the operating mode of the remote automatic transfer system based on the determination logic, includes: When the number of substations included in the remote backup automatic transfer system is equal to 3, if all the remote backup automatic transfers of each substation in the remote backup automatic transfer system are fully charged, the operating mode of the remote backup automatic transfer system is determined to be the operating mode of the remote backup automatic transfer system consisting of 3 substations connected in series. When the number of substations included in the remote backup automatic transfer system is equal to 3, if the remote backup automatic transfer of each substation in the remote backup automatic transfer system has not been fully charged, it is determined whether the remote backup automatic transfer of the substation at the middle position and the substation at the first edge position, or the substation at the middle position and the substation at the second edge position, has been fully charged. If the remote backup automatic transfer system of the substation at the intermediate position and the substation at the first edge position is fully charged, the operation mode of the remote backup automatic transfer system is determined to be the series power supply operation mode of the substation at the intermediate position and the substation at the first edge position. If the remote backup automatic transfer system of the intermediate substation and the second edge substation is fully charged, the operating mode of the remote backup automatic transfer system is determined to be the series power supply mode of the intermediate substation and the second edge substation.

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