A method, device, equipment and storage medium for high-voltage phase comparison

Abstract

An embodiment of the present invention discloses a method, device, equipment and storage medium for high-voltage phase comparison. The method includes: obtaining a set of substation switch cabinets, where each substation switch cabinet in the set of substation switch cabinets is located under the same busbar, traversing each substation switch cabinet in the set of substation switch cabinets, and obtaining the double circuit where the currently traversed substation switch cabinet is located, energizing the circuit in the double circuit except the currently traversed substation switch cabinet, and detecting the phase sequence of the currently traversed substation switch cabinet to determine whether the double circuit can be normally powered, so as to complete all phase comparison operations in the same substation, avoid the need to go to the user switch cabinets of each user for phase comparison, improve the efficiency of phase comparison, and also greatly reduce the manpower and material resources consumed by phase comparison.

Description

Technical Field

[0001] The present invention relates to the technical field of phase verification of switchgear, and in particular to a method, device, equipment and storage medium for high-voltage phase verification. Background Art

[0002] For some high-voltage switchgears that need to be upgraded and replaced, it is necessary to separately transform the equipment on one section of the busbar and the equipment on the second section of the busbar in the substation. And after the transformation of each section of the busbar, it is necessary to perform a high-voltage phase verification on each feeder once to ensure that the phase sequence of each user before and after the transformation of the busbar equipment in the substation is correct and will not affect the normal power supply of each user. At the same time, it is also to ensure that after the phase sequence of each user's feeder is correct, the power transfer operation can be realized without power interruption.

[0003] Currently, the high-voltage phase verification work is carried out at the incoming switchgear position of each user switch station as the phase verification location. Since there are many feeders in the substation and there are multiple users at the lower level of the substation, the multiple user switchgears are scattered and far away from each other. The test personnel need to go to each switch station one by one for high-voltage phase verification work, which takes a lot of time on the way. There will also be a problem that different manufacturers and models of user switchgears require different phase verification tools to be configured for each phase verification location, and the high-voltage phase verification work consumes a huge amount of manpower and material resources. Summary of the Invention

[0004] The present invention provides a method, device, equipment and storage medium for high-voltage phase verification to solve the problem that the current method of performing phase verification at each phase verification location consumes a large amount of manpower and material resources.

[0005] According to one aspect of the present invention, a method for high-voltage phase verification is provided, and the method includes:

[0006] Obtain a set of substation switchgears, and each substation switchgear in the set of substation switchgears is located under the same busbar;

[0007] Traverse each substation switchgear in the set of substation switchgears, and obtain the double circuit where the currently traversed substation switchgear is located;

[0008] Energize the circuits in the double circuit except the currently traversed substation switchgear;

[0009] Detect the phase sequence of the currently traversed substation switchgear to determine whether the double circuit can supply power normally.

[0010] According to one aspect of the present invention, a device for high-voltage phase verification is provided, and the device includes:

[0011] A substation switchgear set acquisition module for acquiring a substation switchgear set, where each substation switchgear in the substation switchgear set is located under the same busbar;

[0012] A traversal module for traversing each substation switchgear in the substation switchgear set and acquiring the double circuit where the currently traversed substation switchgear is located;

[0013] An energization module for energizing the circuits in the double circuit except the currently traversed substation switchgear;

[0014] A phase sequence detection module for detecting the phase sequence of the currently traversed substation switchgear to determine whether the double circuit can supply power normally.

[0015] According to another aspect of the present invention, there is provided an electronic device, which includes:

[0016] At least one processor; and

[0017] A memory communicatively connected to the at least one processor; wherein,

[0018] The memory stores a computer program executable by the at least one processor, and when the computer program is executed by the at least one processor, the at least one processor can execute a method for high-voltage phase verification according to any embodiment of the present invention.

[0019] According to another aspect of the present invention, there is provided a computer-readable storage medium storing computer instructions for causing a processor to implement a method for high-voltage phase verification according to any embodiment of the present invention when executed.

[0020] The technical solution of the embodiment of the present invention provides a method for high-voltage phase verification, which includes: acquiring a substation switchgear set, where each substation switchgear in the substation switchgear set is located under the same busbar, traversing each substation switchgear in the substation switchgear set, and acquiring the double circuit where the currently traversed substation switchgear is located, energizing the circuits in the double circuit except the currently traversed substation switchgear, detecting the phase sequence of the currently traversed substation switchgear to determine whether the double circuit can supply power normally, realizing that all phase verification operations can be completed in the same substation, avoiding the need to go to the user switchgears of each user for phase verification, improving the efficiency of phase verification, and greatly reducing the manpower and material resources consumed by phase verification.

[0021] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0023] Figure 1 It is a schematic flowchart of a method for high-voltage phase comparison according to Embodiment 1 of the present invention;

[0024] Figure 2 It is a schematic diagram of decentralized high-voltage phase comparison according to Embodiment 1 of the present invention;

[0025] Figure 3 It is a schematic diagram of phase comparison for a target substation according to Embodiment 1 of the present invention;

[0026] Figure 4 It is a schematic diagram of double-circuit power-on according to Embodiment 1 of the present invention;

[0027] Figure 5 It is a schematic structural diagram of a device for high-voltage phase comparison according to Embodiment 2 of the present invention;

[0028] Figure 6 It is a schematic structural diagram of an electronic device for implementing a method for high-voltage phase comparison in the embodiments of the present invention. Detailed implementation manners

[0029] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0031] Embodiment 1

[0032] Figure 1 FIG. 1 is a schematic flow chart of a method for high-voltage phase comparison provided for Embodiment 1 of the present invention.

[0033] Reference Figure 2 to a schematic diagram of distributed high-voltage phase comparison, and the current phase comparison method will be further explained through the following examples.

[0034] 1.1 First stage: Check the phase sequence (it can be considered that after a section of busbar is renovated):

[0035] After renovating a section of busbar equipment in the substation, taking the A1D1 line as an example, the debugging personnel need to perform a high-voltage phase comparison operation on the upper and lower contacts at the D1 switchgear of the first user power supply incoming line ( Figure 2 The position corresponding to D1 in [the figure] is marked with "phase comparison" to clearly explain that D1 is one of the phase comparison locations in the first stage).

[0036] The upper contact of the D1 switchgear is powered by the B1E1 line of the substation, which belongs to the power supply of the second section of the busbar of the substation. Its power supply route is as follows: the upper contact of B1 - E1 - C1 - D1, where C1 can be regarded as the bus coupler breaker of the first user.

[0037] The lower contact of the D1 switchgear is powered by the A1D1 line of the substation, which belongs to the power supply of the first section of the busbar of the substation. Its power supply route is as follows: the lower contact of A1 - D1.

[0038] At the same time, there are also other N users loaded on the first section of the busbar, and high-voltage phase comparison needs to be completed at the incoming switchgears of these N users respectively.

[0039] Among them, when performing phase comparison, the process is as follows:

[0040] 1.1.1 The debugging personnel bring relevant phase comparison instruments and equipment to the D1 switchgear of the first user and prepare for the phase comparison work.

[0041] 1.1.2 Close switch B1-E1-C1. The upper contact on switch cabinet D1 is energized. The upper contact is powered by the second section of the substation.

[0042] 1.1.3 Close switch A1. The lower contact on switch cabinet D1 is energized. The lower contact is powered by the first section of the busbar of the substation.

[0043] 1.1.4 Open the curtain board of switch cabinet D1.

[0044] 1.1.5 Use a phase detector to check the phase sequence of the three-phase power supply at the upper and lower contacts of switch cabinet D1.

[0045] 1.1.6 Complete the phase sequence check of switch cabinet D1 and close the curtain board of switch cabinet D1.

[0046] 1.1.7 Pack up the phase detector and equipment.

[0047] 1.1.8 Go to the second user's switch cabinet D2 for phase checking and repeat the above steps with the phase detection tool matching the second user.

[0048] 1.1.9 Go to the Nth user's switch cabinet DN for phase checking and repeat the above steps with the phase detection tool matching the Nth user until the phase checking of all users is completed.

[0049] 1.2 Second stage of phase sequence check (which can be considered after the transformation of the second section of the busbar is completed):

[0050] After the equipment of the second section of the busbar of the substation is transformed, taking the B1E1 line as an example, the debugging personnel need to conduct a high-voltage phase check at the upper and lower contacts of the power supply incoming line E1 switch cabinet of the first user. ( Figure 2 The position corresponding to E1 is marked with "phase check" to clearly explain that E1 is one of the phase check locations in the first stage).

[0051] The upper contact of switch cabinet E1 is powered by the A1D1 line of the substation, belonging to the power supply of the first section of the busbar of the substation. Its power supply route is as follows: the upper contact of A1-D1-C1-E1.

[0052] The lower contact of switch cabinet E1 is powered by the B1E1 line of the substation, belonging to the power supply of the second section of the busbar of the substation. Its power supply route is as follows: the lower contact of B1-E1.

[0053] From the above example of the phase check method in accordance with Figure 2 it can be known that when the transformation of a substation equipment is completed, the debugging personnel need to go to each user separately for two phase checks.

[0054] It is not difficult to see that such a phase check method requires a large amount of manpower and material resources, and the phase check cycle will also be very long.

[0055] As Figure 1 shown, the method includes the following steps:

[0056] S110, obtain a set of substation switchgears. Each substation switchgear in the set of substation switchgears is located under the same busbar.

[0057] The set of substation switchgears can be generated by manually selecting some substation switchgears in the substation. When manually selecting, it can be determined according to the principle that each substation switchgear in each set of substation switchgears is located under the same busbar.

[0058] Generally, a substation has 2 main transformers and two busbars are in operation. These two busbars can replace each other. When one of the busbars is under maintenance or renovation, the other busbar can still maintain parallel operation through switching operations. Since the phase verification requirement each time is based on a certain busbar after the renovation is completed, therefore, each substation switchgear in the set of substation switchgears needs to be located under the same busbar.

[0059] In one embodiment, the double circuit includes user switchgears. Before obtaining the set of substation switchgears, the following steps are further included:

[0060] Determine the target substation;

[0061] Obtain all the switchgears of the target substation;

[0062] Determine the switchgears that are located under the same busbar and directly connected to the user switchgears from all the switchgears of the target substation as the substation switchgears, and generate a set of substation switchgears.

[0063] In different substations, the substation switchgears in the set of substation switchgears corresponding to different busbars are different. When generating the set of substation switchgears, the target substation can be determined first. The target substation can be the substation that needs to be renovated or maintained. The phase verification operation is required after the phased renovation of the target substation is completed.

[0064] After determining the target substation, obtain all the switchgears in the target substation, and determine the switchgears that belong to the same busbar and are directly connected to the user's user switchgears therefrom, and generate a set of substation switchgears. In specific implementation, since the target substation has two busbars, therefore, for the same target substation, two different sets of substation switchgears can be determined. When specifically obtaining the set of substation switchgears, according to the currently renovated busbar, one of the two different sets of substation switchgears can be determined, in which all the substation switchgears are under the currently renovated busbar.

[0065] S120, traverse each substation switch cabinet in the substation switch cabinet set, and obtain the double circuit where the currently traversed substation switch cabinet is located.

[0066] After determining the substation switch cabinet set, each substation switch cabinet in the substation switch cabinet set can be traversed. The purpose of the traversal is to obtain the double circuit where the substation switch cabinet currently traversed is located from the power topology map for each substation switch cabinet in the substation switch cabinet set. A double circuit refers to a circuit where a load has two power supply sources. The two power supply sources here refer to a section of bus (such as Figure 2 1M in) and two-section busbar (such as Figure 2 2M in the figure). The double circuit of each substation switch cabinet also means a double circuit for powering one user. Figure 2 , A1-D1-C1-E1-B1 forms a double circuit for the first user. It should be noted that: Figure 2 C in the figure can be understood as the busbar circuit breaker of the target substation, which is not part of the double circuit. Among them, A1 is the substation switch cabinet under one busbar, which provides power for the double circuit. Similarly, B1 is the substation switch cabinet under the second busbar, which provides power for the double circuit. A2-D2-C2-E2-B2 constitutes the double circuit of the second user, among which A2 is the substation switch cabinet under one busbar, which provides power for the double circuit. Similarly, B2 is the substation switch cabinet under the second busbar, which provides power for the double circuit.

[0067] S130, energize the circuits in the double circuit except the substation switch cabinet currently traversed.

[0068] refer to Figure 3 A core phase schematic diagram of a target substation. For example, when a section of busbar transformation is completed, the substation switch cabinet in the substation switch cabinet set obtained at this time is Figure 3 If A1-AN is in the core phase operation, then all the core phase locations in this stage are at A1-AN. ​​When the second-stage busbar transformation is completed, the substation switch cabinet in the substation switch cabinet set obtained at this time is Figure 3 If B1-BN is in the nucleus, then all nucleus locations in the nucleus operation of this stage are at B1-BN. Figure 3 As shown, it is possible to directly perform centralized phase checking on the substation switch cabinet of the target substation in the target substation. It should be noted that Figure 3To indicate that all the phase verification operations in the first and second phases can be completed at the target substation, the character "Phase Verification" is marked at the corresponding positions of A1 - AN and B1 - BN to represent that phase verification operations are to be carried out at these points. In fact, since phase verification is required each time a phase of the transformation is completed, A1 - AN and B1 - BN are not completed during the same time period. Instead, they are carried out respectively after the completion of their respective transformation phases.

[0069] Assume that the current transformation is completed for one section of the busbar. When the substation switchgear traversed is A1, the double - circuit where A1 is located can be obtained. Refer to Figure 4 a schematic diagram of the energization of a double - circuit. In the Figure 4 double - circuit, when the substation switchgear A1 in the substation is de - energized ( Figure 4 the cell indicating A1 in Figure 4 is white, indicating de - energization), control other parts of the double - circuit to be energized (

[0070] In one embodiment, S130 includes the following steps:

[0071] Obtain the switch states of all the circuit breakers in the double - circuit. The switch states include closed and open. The circuit breakers include the first substation switchgear circuit breaker corresponding to the currently traversed substation switchgear;

[0072] Send a closing instruction to the circuit breakers whose switch states are open and are other than the first substation switchgear circuit breaker in the double - circuit, so that the circuits other than the currently traversed substation switchgear in the double - circuit are energized;

[0073] If the switch state of the first substation switchgear circuit breaker is closed, send an opening instruction to the first substation switchgear circuit breaker to ensure that the currently traversed substation switchgear is open - circuited.

[0074] In the double - circuit, there are multiple circuit breakers controlling the energization and de - energization of different parts of the circuit. When energizing the circuits other than the currently traversed substation switchgear in the double - circuit, the switch states of all the circuit breakers in the double - circuit can be obtained first, the circuit breakers that are currently open and are other than the first substation switchgear circuit breaker are determined, and then a closing instruction is sent to control the currently open circuit breakers to close.

[0075] In addition, it is necessary to determine the switch state of the first substation switchgear circuit breaker. When the switch state of the first substation switchgear circuit breaker is closed, an opening instruction is sent to the first substation switchgear circuit breaker to ensure that the currently traversed substation switchgear is open - circuited. At this time, in the double - circuit, only the currently traversed substation switchgear itself is not energized, but both ends of the currently traversed substation switchgear are in a conducting state.

[0076] In one embodiment, the circuit breaker further includes a user switchgear breaker corresponding to the user switchgear, a user bus tie breaker belonging to the same user as the user switchgear, and in a double circuit, a second substation switchgear breaker corresponding to another substation switchgear on a busbar different from the currently traversed substation switchgear.

[0077] In each switchgear, the circuit breaker controls the on and off of the circuit. Additionally, there is also a user bus tie breaker in the double circuit.

[0078] Exemplarily, referring to Figure 4 , A1 indicates the currently traversed substation switchgear (which can also be regarded as indicating the first substation switchgear breaker), where D1 and E1 indicate the user switchgear (which can also be regarded as indicating the user switchgear breaker), C1 indicates the user bus tie breaker of the first user. Since there are two busbars in the target substation, that is, there are two different sets of substation switchgears, Figure 4 B1 in can indicate another substation switchgear on a busbar different from the currently traversed substation switchgear (which can also indicate the second substation switchgear breaker).

[0079] From Figure 4 , it can be seen that when energizing the circuit in the double circuit other than the currently traversed substation switchgear, Figure 4 the breakers corresponding to B1, C1, D1, and E1 in are all closed (the black grid in the figure indicates closed, representing energized), and only A1 is open (the white grid in the figure indicates open, representing open circuit and non-energized). Figure 4 C in can be understood as the bus tie breaker of the target substation and does not belong to a part of the double circuit. According to the implemented specification, when performing phase comparison, the bus tie breaker of the target substation must be open. Therefore, the grid where C is located in the figure is white, indicating non-energized.

[0080] S140, detect the phase sequence of the currently traversed substation switchgear to determine whether the double circuit can supply power normally.

[0081] After determining the energization status of the double circuit, the result obtained by performing phase comparison in the currently traversed substation switchgear can be completely equivalent to the result of performing phase comparison on the user switchgear at the user end in the current existing phase comparison method. When the phase sequence of the currently traversed substation switchgear meets the conditions for normal power supply, it can be considered that the double circuit can supply power normally.

[0082] In one embodiment, the substation switchgear includes a first contact and a second contact;

[0083] Detecting the phase sequence of the currently traversed substation switchgear includes:

[0084] Detect the phase sequence of the first contact of the currently traversed substation switchgear and the phase sequence of the second contact of the currently traversed substation switchgear.

[0085] There are a first contact and a second contact in the substation switchgear. In fact, the first contact and the second contact indicate the upper contact and the lower contact in the substation switchgear, or indicate the lower contact and the upper contact in the substation switchgear.

[0086] Exemplarily, when the substation switchgear is in the open circuit state while both sides of the substation switchgear are energized, at this time, the power supply connected to the first contact of the substation switchgear is a section of busbar of the target substation, and the power supply connected to the second contact is a second section of busbar of the target substation. When performing the phase comparison operation, the purpose is to obtain the phase sequences of the first section of busbar and the second section of busbar in the double circuit of each user. Therefore, compared with the current method of performing phase comparison on the user switchgear in the incoming lines of all users to obtain the phase sequences of the first section of busbar and the second section of busbar, the phase comparison method of this embodiment only needs to perform phase comparison on the corresponding substation switchgear in the target substation, which can greatly reduce the consumption of human and material resources.

[0087] In one embodiment, determining whether the double circuit can supply power normally includes the following steps:

[0088] If the phase sequence of the first contact is the same as the phase sequence of the second contact, it is determined that the double circuit can supply power normally;

[0089] If the phase sequence of the first contact is different from the phase sequence of the second contact, it is determined that the double circuit cannot supply power normally.

[0090] When determining whether the double circuit can supply power normally, refer to Figure 4 , exemplarily, when the first section of busbar of the target substation is renovated, when performing phase comparison on the power supply outgoing line of the first user at A1 (the currently traversed substation switchgear), the phase sequence of the second section of busbar of the target substation should be used as the reference. Assume that the power supply connected to the first contact is the first section of busbar and the power supply connected to the second contact is the second section of busbar. Then, after obtaining the phase sequences of the first contact and the second contact, it is required that the phase sequence of the first contact should be based on the phase sequence of the second contact, that is, the phase sequence of the first contact must be equal to the phase sequence of the second contact to ensure the normal power supply of the double circuit and ensure that users will not experience power outages, tripping, etc.

[0091] In one embodiment, after determining that the double circuit cannot supply power normally, the following steps are further included:

[0092] Issue a warning that the double circuit cannot supply power normally and adjust the phase sequence of the double circuit until the phase sequence of the first contact is the same as the phase sequence of the second contact.

[0093] When the phase sequences of the first contact and the second contact are inconsistent, a warning that the dual circuit cannot be normally powered can be issued to remind that the phase sequences of one bus section and the second bus section in the current user's dual circuit are inconsistent.

[0094] After determining that the phase sequences of the first contact and the second contact are inconsistent, the phase sequence of the dual circuit can be adjusted. When adjusting the phase sequence, the three-phase cable heads in the currently traversed substation switchgear can be disassembled, then repositioned, and then reconnected to the currently traversed substation switchgear. The specific phase sequence adjustment steps can be the same as the current phase sequence adjustment technology and will not be explained in detail here.

[0095] Through the phase verification method in this embodiment, the phase verification location can be optimized for the current phase verification method, and centralized phase verification can be achieved in the target substation. The commissioning personnel no longer need to go to the switchgears of N users for phase verification, nor do they need to disassemble and assemble the instruments and equipment 2N times. According to the transformation situation of the bus, the phase sequence verification work of all power supply lines can be completed in two stages. The following problems can be effectively solved:

[0096] (1) It can achieve centralized high-voltage phase verification of each feeder at one location in the target substation, saving a large amount of travel time for the commissioning personnel between each user, and improving the efficiency of the high-voltage phase verification work of the commissioning personnel.

[0097] (2) The commissioning personnel do not need to repeatedly disassemble and assemble the test instruments and carry them to the switchgears of each user for high-voltage phase verification work, which can reduce the labor intensity of the commissioning personnel, reduce the workload, reduce the commissioning time, and improve the commissioning efficiency.

[0098] (3) Only a set of special tools for opening the switchgear curtain board needs to be prepared at the target substation during commissioning, and the curtain boards of the switchgears of each feeder can be opened one by one to avoid the risk of electric shock and complete the high-voltage phase verification work. Since there are different types and manufacturers of switchgears for each user, there is no need to prepare multiple sets of special curtain board operation tools, reducing the spare parts procurement cost.

[0099] (4) When performing high-voltage phase verification work, the curtain boards of the incoming switchgears of each user need to be opened. Exemplarily, when there are 6 users in the power supply system, there are 6 different types and manufacturers of switchgears. When it is necessary to go to the switchgears of each user for phase verification, 6 different types of switchgears require 6 special operation tools for opening the switchgear curtain boards. There are 6 switchgears for 6 users, and a total of 6 operation methods for opening the switchgear curtain boards. The operation risk coefficient of each switchgear = 6 methods / 6 switchgears = 1.

[0100] With the phase verification method in the real-time example of this application, there is only one type of switchgear cabinet in one target substation, and one operation method for opening the curtain board of the switchgear cabinet is shared. The operation risk coefficient of each switchgear cabinet = 1 method / 6 switchgear cabinets = 1 / 6, and the risk system is significantly reduced.

[0101] An embodiment of the present invention discloses a method for high-voltage phase verification. The method includes: obtaining a set of switchgear cabinets in a substation, where each switchgear cabinet in the set of switchgear cabinets in the substation is located under the same busbar, traversing each switchgear cabinet in the set of switchgear cabinets in the substation, and obtaining the double circuit where the currently traversed switchgear cabinet is located, energizing the circuit in the double circuit except the currently traversed switchgear cabinet, and detecting the phase sequence of the currently traversed switchgear cabinet to determine whether the double circuit can be normally powered, so as to complete all phase verification operations in the same substation, avoid the need to go to the user switchgear cabinets of each user for phase verification, improve the efficiency of phase verification, and also greatly reduce the manpower and material resources consumed by phase verification.

[0102] Embodiment 2

[0103] Figure 5 It is a schematic structural diagram of a high-voltage phase verification device provided by Embodiment 2 of the present invention. As shown in the figure, the device includes:

[0104] A substation switchgear cabinet set acquisition module 510, configured to acquire a set of substation switchgear cabinets, where each substation switchgear cabinet in the set of substation switchgear cabinets is located under the same busbar;

[0105] A traversing module 520, configured to traverse each switchgear cabinet in the set of substation switchgear cabinets and obtain the double circuit where the currently traversed switchgear cabinet is located;

[0106] An energizing module 530, configured to energize the circuit in the double circuit except the currently traversed switchgear cabinet;

[0107] A phase sequence detection module 540, configured to detect the phase sequence of the currently traversed switchgear cabinet to determine whether the double circuit can be normally powered.

[0108] In one embodiment, the device further includes the following modules:

[0109] A target substation determination module, configured to determine a target substation;

[0110] A switchgear cabinet acquisition module, configured to acquire all switchgear cabinets of the target substation;

[0111] A substation switchgear cabinet set generation module, configured to determine the switchgear cabinets located under the same busbar and directly connected to the user switchgear cabinets from all switchgear cabinets of the target substation as substation switchgear cabinets, and generate a set of substation switchgear cabinets.

[0112] In one implementation, the power-on module 530 includes the following sub-modules:

[0113] A switch state acquisition sub-module, configured to acquire the switch states of all circuit breakers in the double circuit, where the switch states include closed and open, and the circuit breakers include the first substation switch cabinet circuit breaker corresponding to the currently traversed substation switch cabinet;

[0114] A closing instruction sending sub-module, configured to send a closing instruction to the circuit breakers in the double circuit that are in the open state except for the first substation switch cabinet circuit breaker, so that the circuits in the double circuit except for the currently traversed substation switch cabinet are powered on;

[0115] An opening instruction sending sub-module, configured to send an opening instruction to the first substation switch cabinet circuit breaker if the switch state of the first substation switch cabinet circuit breaker is closed, to ensure that the currently traversed substation switch cabinet is open-circuited.

[0116] In one embodiment, the circuit breakers further include user switch cabinet circuit breakers corresponding to the user switch cabinets, user bus coupler circuit breakers belonging to the same user as the user switch cabinets, and in the double circuit, second substation switch cabinet circuit breakers corresponding to another substation switch cabinet on a different section of the bus from the currently traversed substation switch cabinet.

[0117] In one embodiment, the substation switch cabinet includes a first contact and a second contact; the phase sequence detection module 540 includes the following sub-modules:

[0118] A phase sequence detection sub-module, configured to detect the phase sequence of the first contact of the currently traversed substation switch cabinet and the phase sequence of the second contact of the currently traversed substation switch cabinet.

[0119] In one embodiment, the device is specifically configured to:

[0120] When the phase sequence of the first contact is consistent with the phase sequence of the second contact, it is determined that the double circuit can be normally powered;

[0121] When the phase sequence of the first contact is inconsistent with the phase sequence of the second contact, it is determined that the double circuit cannot be normally powered.

[0122] In one embodiment, the device is further configured to:

[0123] Issue a warning that the double circuit cannot be normally powered, and adjust the phase sequence of the double circuit until the phase sequence of the first contact is consistent with the phase sequence of the second contact.

[0124] The high-voltage phase discrimination device provided in the second embodiment of the present invention can implement the high-voltage phase discrimination method provided in the first embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

[0125] Embodiment 3

[0126] Figure 6 FIG. shows a schematic structural diagram of an electronic device 10 that can be used to implement the embodiments of the present invention. The electronic device is intended to represent various forms of digital computers, such as, laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as, personal digital processors, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0127] As Figure 6 shown, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc. Among them, the memory stores a computer program executable by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. The input / output (I / O) interface 15 is also connected to the bus 14.

[0128] A plurality of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disc, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0129] The processor 11 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a method for high-voltage phase comparison.

[0130] In some embodiments, a method for high-voltage phase comparison can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for high-voltage phase comparison described above can be executed. Alternatively, in other embodiments, the processor 11 can be configured to execute a method for high-voltage phase comparison by any other suitable means (e.g., by means of firmware).

[0131] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special-purpose or general-purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0132] The computer program for implementing the method of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to the processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowchart and / or block diagram are implemented. The computer program can be executed entirely on the machine, partially on the machine, as a stand-alone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0133] In the context of the present invention, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0134] To provide for interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can also be used to provide for interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0135] The systems and techniques described herein can be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0136] A computing system may include a client and a server. The client and the server are generally far from each other and usually interact via a communication network. The client-server relationship is created by computer programs running on respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system, solving the defects of difficult management and weak business scalability existing in traditional physical hosts and VPS services.

[0137] It should be understood that various forms of processes shown above can be used, steps can be reordered, added or deleted. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is made herein.

[0138] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for high-voltage phase comparison, characterized in that, The method includes: Obtain a set of substation switchgears, where each substation switchgear in the set of substation switchgears is located under the same busbar; Traverse each substation switchgear in the set of substation switchgears, and obtain the double circuit where the currently traversed substation switchgear is located; Energize the circuits in the double circuit except the currently traversed substation switchgear, where the bus-tie breaker of the substation is in the open state; Detect the phase sequence of the currently traversed substation switchgear to determine whether the double circuit can supply power normally; Wherein, the substation switchgear includes a first contact and a second contact; The detecting the phase sequence of the currently traversed substation switchgear includes: Detect the phase sequence of the first contact of the currently traversed substation switchgear and the phase sequence of the second contact of the currently traversed substation switchgear.

2. The method according to claim 1, wherein The double circuit includes a user switchgear. Before obtaining the set of substation switchgears, it further includes: Determine the target substation; Obtain all the switchgears of the target substation; Determine the switchgears that are located under the same busbar and are directly connected to the user switchgear from all the switchgears of the target substation as substation switchgears, and generate a set of substation switchgears.

3. The method according to claim 2, wherein The energizing the circuits in the double circuit except the currently traversed substation switchgear includes: Obtain the switch states of all the circuit breakers in the double circuit, the switch states include closed and open, and the circuit breakers include the first substation switchgear circuit breaker corresponding to the currently traversed substation switchgear; Send a closing instruction to the circuit breakers whose switch states are open except the first substation switchgear circuit breaker in the double circuit, so that the circuits in the double circuit except the currently traversed substation switchgear are energized; If the switch state of the first substation switchgear circuit breaker is closed, send an opening instruction to the first substation switchgear circuit breaker to ensure that the currently traversed substation switchgear is open.

4. The method according to claim 3, wherein The circuit breakers further include the user switchgear circuit breaker corresponding to the user switchgear, the user bus-tie breaker belonging to the same user as the user switchgear, and in the double circuit, the second substation switchgear circuit breaker corresponding to another substation switchgear located on a different section of the busbar from the currently traversed substation switchgear.

5. The method according to claim 1, wherein The determining whether the double circuit can supply power normally includes: When the phase sequence of the first contact is the same as the phase sequence of the second contact, it is determined that the double circuit can supply power normally; When the phase sequence of the first contact is different from the phase sequence of the second contact, it is determined that the double circuit cannot supply power normally.

6. The method according to claim 5, characterized in that, After determining that the double circuit cannot supply power normally, it further includes: Issue a warning that the double circuit cannot supply power normally, and adjust the phase sequence of the double circuit until the phase sequence of the first contact is the same as the phase sequence of the second contact.

7. A device for high-voltage phase comparison, characterized in that, The device includes: A substation switchgear set obtaining module, configured to obtain a set of substation switchgears, where each substation switchgear in the set of substation switchgears is located under the same busbar; A traversal module, configured to traverse each substation switchgear in the set of substation switchgears of the substation, and obtain the double circuit where the currently traversed substation switchgear is located; A power-on module, configured to power on the circuits in the double circuit except the currently traversed substation switchgear, wherein the bus coupler breaker of the substation is in an open circuit state; A phase sequence detection module, configured to detect the phase sequence of the currently traversed substation switchgear to determine whether the double circuit can supply power normally; Wherein, the substation switchgear includes a first contact and a second contact; the phase sequence detection module includes the following sub-modules: A phase sequence detection sub-module, configured to detect the phase sequence of the first contact of the currently traversed substation switchgear and the phase sequence of the second contact of the currently traversed substation switchgear.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute a method for high-voltage phase verification according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions, and the computer instructions are used to implement a method for high-voltage phase verification according to any one of claims 1-6 when executed by a processor.

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