Winding group number identification method of electrical module, electrical module and storage medium

Abstract

The application provides a winding group number identification method of an electrical module, an electrical module and a storage medium. The method comprises the following steps: when a group number self-identification command is received, it is determined whether the electrical module is a first target module; if the electrical module is the first target module, when a target line voltage of the electrical module is at a zero-crossing point in a preset voltage direction, the target line voltage value of the electrical module is detected and broadcasted, and a synchronous detection frame is broadcasted; if the electrical module is not the first target module, when the synchronous detection frame is received, the target line voltage value of the electrical module is detected and broadcasted; when the target line voltage values of all the electrical modules are received, according to the target line voltage values of the electrical modules, all the electrical modules in an electrical cabinet are sorted in a preset size order to form a first sorting list; and the first sorting list is matched with a preset second sorting list to identify the group number of the winding connected to the electrical module. The application can realize self-identification of the group number of each electrical module, and thus can accurately perform sleep control.

Description

TECHNICAL FIELD

[0001] The present application relates to the electrical technical field, and in particular to a winding group number identification method of an electrical module, an electrical module and a storage medium. BACKGROUND

[0002] An electrical cabinet usually adopts a phase-shifting transformer for phase-shifting rectification to achieve the purpose of suppressing input harmonics and improving power factor. Each output winding of the phase-shifting transformer is connected to at least one electrical module in the electrical cabinet. In order to save energy, when the output winding is connected to at least two electrical modules, the upper computer usually controls the at least two electrical modules connected by the output winding to take turns to hibernate. Therefore, the correspondence between the group number of the output winding and the address of the electrical module needs to be stored in advance in the upper computer. Since the correspondence between the group number of the output winding and the address of the electrical module has been fixed in the upper computer, the maintenance personnel must install the electrical module in the predetermined order when installing the electrical module. Otherwise, the correspondence between the group number of the output winding and the address of the electrical module stored in the upper computer will not be consistent with the actual connection relationship between the output winding and the electrical module, which will further cause problems in hibernation control and affect the use of the electrical cabinet. SUMMARY

[0003] The embodiments of the present application provide a winding group number identification method of an electrical module, an electrical module and a storage medium to solve the problem that if the maintenance personnel does not install the electrical module in the predetermined order, the correspondence between the group number of the output winding and the address of the electrical module stored in the upper computer will not be consistent with the actual connection relationship between the output winding and the electrical module, which will further cause problems in hibernation control and affect the use of the electrical cabinet.

[0004] In a first aspect, the embodiments of the present application provide a winding group number identification method of an electrical module. A plurality of electrical modules are located in an electrical cabinet, and a plurality of windings are connected to the electrical cabinet. Each winding is connected to at least one electrical module. The method is applied to any electrical module and includes the following steps.

[0005] When a group number self-identification command sent by the upper computer is received, it is determined whether the electrical module is the first target module.

[0006] If it is determined that the electrical module is the first target module, when the target line voltage of the electrical module is at a zero-crossing point in a preset voltage direction, the target line voltage value of the electrical module is detected, and the target line voltage value corresponding to the address of the electrical module is broadcasted and sent together with a synchronous detection frame. The synchronous detection frame is used to instruct other electrical modules in the electrical cabinet to synchronously detect their respective target line voltage values.

[0007] If it is determined that the electrical module is not the first target module, when the synchronous detection frame is received, the target line voltage value of the electrical module is detected, and the target line voltage value corresponding to the address of the electrical module is broadcasted and sent.

[0008] When receiving the target line voltage values of all the electrical modules in the electrical cabinet, all the electrical modules in the electrical cabinet are sorted according to the target line voltage values of the respective electrical modules in a preset size order to form a first sorting list containing the addresses of the respective electrical modules.

[0009] The first sorting list is matched with a preset second sorting list to identify the group number of the winding connected with itself, and the group number is matched with the address of itself; wherein the second sorting list is used to represent the sorting of the winding group numbers of the respective windings according to the phase relationship thereof.

[0010] In a possible implementation, when each winding is connected with at least two electrical modules, all the electrical modules in the electrical cabinet are sorted according to the target line voltage values of the respective electrical modules in a preset size order to form a first sorting list containing the addresses of the respective electrical modules, including:

[0011] The respective electrical modules in the electrical cabinet are grouped according to the target line voltage values of the respective electrical modules to form a plurality of electrical module groups; wherein the absolute value of the difference between the target line voltage values of any two electrical modules in each electrical module group is less than a preset voltage difference value; the number of the electrical module groups is the same as the number of the windings;

[0012] The respective electrical module groups are sorted according to the target line voltage values of the electrical modules in the respective electrical module groups in a preset size order to form a first sorting list containing the addresses of the respective electrical modules.

[0013] In a possible implementation, the first sorting list is matched with a preset second sorting list to identify the group number of the winding connected with itself, including:

[0014] According to the sorting order, each electrical module group in the first sorting list is matched with each winding group number in the second sorting list one by one, and the winding group number matched with the electrical module group where the address of itself is located is identified as the group number of the winding connected with itself.

[0015] In a possible implementation, the second sorting list is determined according to the target line voltage values of the respective windings synchronously detected when the target line voltage of one of the windings is zero at a preset voltage direction, sorted in a preset size order.

[0016] In a possible implementation, when it is determined that the electrical module is not the first target module, the target line voltage value corresponding to the address of itself is broadcasted, including:

[0017] The delay duration is determined according to the address of itself, and the target line voltage value corresponding to the address of itself is broadcasted after the delay duration;

[0018] If it is determined that the electrical module is the second target module, the target line voltage value corresponding to the address of the electrical module broadcasted by the second target module carries an end flag; the second target module is the electrical module in the electrical cabinet that broadcasts the target line voltage value corresponding to the address of the electrical module last; correspondingly, when each electrical module receives the target line voltage value carrying the end flag, it is determined that the target line voltage value of all electrical modules in the electrical cabinet has been received.

[0019] In a possible implementation, the group number self-identification command is a command issued by the host computer when it is determined that the number of electrical modules currently online in the electrical cabinet is the same as the total number of electrical modules in the electrical cabinet.

[0020] The group number self-identification command carries the address of the first target module, the number of windings, the number of electrical modules corresponding to each winding, and the address of the second target module.

[0021] The synchronization detection frame carries a synchronization flag, a preset voltage direction, and the address of the first target module.

[0022] In a possible implementation, after the first sorting list is matched with a preset second sorting list to identify the group number of the winding connected to the electrical module, and the group number is matched with the address of the electrical module, the winding group number identification method of the electrical module further includes:

[0023] The address of the electrical module and the matched winding group number are sent to the host computer, so that the host computer solidifies the correspondence between each winding and each electrical module, and controls the electrical modules corresponding to each winding respectively according to the solidified correspondence.

[0024] In a possible implementation, when the electrical cabinet is powered on for the first time, the first target module supplies power to the host computer, so that after the host computer is powered on, it is determined whether all electrical modules in the electrical cabinet have been solidified, if not, the first target module is controlled to work, and the other electrical modules are controlled not to work, if yes, the electrical modules that have been solidified are controlled to work, and the electrical modules that have not been solidified are controlled not to work.

[0025] The address of each electrical module is determined according to the power-on sequence of each electrical module; and the first target module is the electrical module that is powered on first in the electrical cabinet.

[0026] In a second aspect, an electrical module is provided, which includes a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the winding group number identification method of the electrical module as described in the first aspect or any possible implementation of the first aspect.

[0027] In a third aspect, an embodiment of the present application provides a computer readable storage medium storing a computer program, the computer program, when executed by a processor, implements the steps of the winding group number identification method of the electrical module as described in the first aspect or any possible implementation manner of the first aspect.

[0028] The embodiment of the present application provides a winding group number identification method of an electrical module, an electrical module and a storage medium. After receiving a group number self-identification command sent by a host computer, the electrical module starts to perform group number self-identification. When receiving target line voltage values of all electrical modules in an electrical cabinet, the electrical module sorts all electrical modules in the electrical cabinet according to the target line voltage values of the electrical modules in a preset size order, forms a first sorting list containing addresses of the electrical modules, matches the first sorting list with a preset second sorting list, identifies a group number of a winding connected with the electrical module, and matches the group number with the address of the electrical module, so that the electrical module can automatically identify the group number of the winding connected with the electrical module regardless of the installation order of the electrical module by an operation and maintenance personnel. Then, the host computer can save a corresponding relationship between the electrical module and the winding according to the group number identified by the electrical module, accurately performs hibernation control according to the corresponding relationship, does not affect the use of the electrical cabinet, and reduces the operation and maintenance control difficulty of the operation and maintenance personnel and workload. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0030] Figure 1 is a connection diagram of a phase-shifting transformer and an electrical module provided by the embodiment of the present application;

[0031] Figure 2 is a schematic diagram of a winding group number identification method of an electrical module provided by the embodiment of the present application;

[0032] Figure 3 is a voltage waveform schematic diagram of each winding provided by the embodiment of the present application;

[0033] Figure 4 is a structure schematic diagram of a winding group number identification device of an electrical module provided by the embodiment of the present application;

[0034] Figure 5 is a schematic diagram of an electrical module provided by the embodiment of the present application. DETAILED DESCRIPTION

[0035] In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular architectures, technologies, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0036] In order to make the objects, technical solutions and advantages of the present application clearer, the following will be described by specific embodiments in conjunction with the accompanying drawings.

[0037] Referring to Figure 1 Each output winding (referred to as winding, the winding hereinafter refers to the output winding of the phase-shifting transformer) in the phase-shifting transformer can be connected to at least one electrical module, and the electrical module can supply power to a load. The electrical module can be a rectifier module or other implementable electrical module, which is not specifically limited here.

[0038] The hibernation logic and time-sharing start logic in the prior art require that the electrical module address corresponding to each output winding and the output winding group number strictly correspond. Assuming that there are 6 windings and 24 electrical modules, the corresponding relationship stored in the upper computer is that the electrical module address corresponding to the No. 1 winding is 1-4, the electrical module address corresponding to the No. 2 winding is 5-8, and so on, and the electrical module address corresponding to the No. 6 winding is 21-24. Therefore, when the operation and maintenance personnel install the electrical modules, the electrical modules connected to the No. 1 winding are installed first, and the installation is in the order of 1 to 4, then the electrical modules connected to the No. 2 winding are installed, and so on, and finally the electrical modules connected to the No. 6 winding are installed. The installation order needs to be fixed, and each electrical module cannot be installed at will, otherwise the corresponding relationship stored in the upper computer will not be consistent with the actual connection relationship between the output winding and the electrical module, which will further cause problems in hibernation control and affect the use of the electrical cabinet.

[0039] In view of the above problems, the embodiment of the present application provides a winding group number identification method of an electrical module, which is described in detail as follows.

[0040] Referring to Figure 2 It shows the implementation flowchart of the winding group number identification method of the electrical module provided by the embodiment of the present application. The plurality of electrical modules are located in an electrical cabinet, and the plurality of windings are connected to the electrical cabinet, and each winding is connected to at least one electrical module. The method can be applied to any one of the electrical modules in the electrical cabinet.

[0041] The execution subject of the winding group number identification method of the electrical module can be the electrical module, specifically the controller contained in the electrical module.

[0042] Referring to Figure 2The winding group number identification method of the electrical module comprises:

[0043] In S201, when receiving the group number self-identification command sent by the upper computer, it is determined whether the first target module is itself.

[0044] In this embodiment, the upper computer and each electrical module in the electrical cabinet can communicate through the CAN (Controller Area Network) bus.

[0045] When winding group number identification is needed, the upper computer can broadcast the group number self-identification command through the CAN bus, and the command can be a data frame for group number self-identification. The first target module address can be carried in the group number self-identification command. Each electrical module can determine whether the first target module is itself according to the address of the first target module carried in the command.

[0046] For example, the address of each electrical module can be a continuous integer starting from 1, which can be determined according to the order of power-on. For example, assuming there are 6 electrical modules, the address of the first electrical module to power on is 1, and so on, and the address of the last electrical module to power on is 6. The method for the electrical module to determine its own address is as follows: when the electrical module is powered on, it detects whether the address 1 is occupied, if the address 1 is not occupied, it determines that its address is 1, if the address 1 is occupied by other electrical modules, it continues to detect whether the address 2 is occupied, if the address 2 is not occupied, it determines that its address is 2, if the address 2 is occupied by other electrical modules, it continues to detect whether the address 3 is occupied, and so on, until its own address is determined.

[0047] The first target module is the reference module for subsequent zero-crossing detection, and its address can be set according to actual needs. In some possible implementation manners, the first target module can be the electrical module with the smallest address in the electrical cabinet.

[0048] In S202, if it is determined that the first target module is itself, when the target line voltage of itself is at the zero-crossing point of the preset voltage direction, the target line voltage value of itself is detected, and the target line voltage value corresponding to the address of itself and the synchronous detection frame are broadcasted and sent; the synchronous detection frame is used to instruct other electrical modules in the electrical cabinet to synchronously detect their respective target line voltage values.

[0049] The preset voltage direction can be from negative to positive or from positive to negative, which can be set according to actual needs.

[0050] The target line voltage can be a line voltage between the U phase and the V phase, or a line voltage between the V phase and the W phase, or a line voltage between the W phase and the U phase, and can be set according to actual needs. It should be noted that the target line voltage values mentioned in the embodiments of the present application are all line voltage values between the same two phases. For example, if the target line voltage is the line voltage between the U phase and the V phase, the target line voltage value in the embodiments of the present application is the line voltage value between the U phase and the V phase, regardless of the electrical module or the winding.

[0051] Exemplarily, assuming that the first target module is the electrical module with an address of 1, the preset voltage direction is from positive to negative, and the target line voltage is the line voltage between the U phase and the V phase, when the line voltage between the U phase and the V phase of the No. 1 electrical module passes through the zero point from positive to negative, the line voltage value between the U phase and the V phase of the No. 1 electrical module is detected and stored, and the line voltage value between the U phase and the V phase corresponding to the No. 1 address and the synchronous detection frame are broadcasted and sent to other electrical modules in the electrical cabinet, so that other electrical modules synchronously detect the line voltage value between the U phase and the V phase of each other and store. The other electrical modules are all electrical modules in the electrical cabinet except the first target module, and the other electrical modules can receive the synchronous detection frame in the form of interrupt reception.

[0052] In S203, if it is determined that the electrical module itself is not the first target module, when the synchronous detection frame is received, the target line voltage value of the electrical module itself is detected, and the target line voltage value corresponding to the address of the electrical module itself is broadcasted and sent.

[0053] In the embodiment, when the electrical module that is not the first target module receives the synchronous detection frame sent by the first target module, the current target line voltage value of the electrical module is synchronously detected and stored, for example, the line voltage between the U phase and the V phase is detected, and the target line voltage value corresponding to the address of the electrical module itself is broadcasted and sent to each electrical module in the electrical cabinet.

[0054] In some possible implementation manners, the alternatives of the above S202 and the above S203 can include:

[0055] If it is determined that the electrical module itself is the first target module, when the target line voltage of the electrical module itself passes through the zero point in the preset voltage direction, the target line voltage value of the electrical module itself is detected, and the target line voltage value corresponding to the address of the electrical module itself and the synchronous detection frame are sent to the upper computer, so that the upper computer sends the synchronous detection frame to other electrical modules in the electrical cabinet; the synchronous detection frame is used to instruct other electrical modules in the electrical cabinet to synchronously detect the target line voltage value of each other;

[0056] If it is determined that the electrical module is not the first target module, when a synchronization detection frame is received, a target line voltage value of the electrical module is detected, and the target line voltage value corresponding to the address of the electrical module is sent to the upper computer, so that the upper computer sends the addresses of all electrical modules in the electrical cabinet and the corresponding target line voltage values to the electrical modules after receiving the target line voltage values sent by all electrical modules in the electrical cabinet.

[0057] In the embodiment, the winding group number identification method of the electrical module can include S201, S202, S203, S204, and S205, or the winding group number identification method of the electrical module can include S201, the alternative, S204, and S205.

[0058] In S204, when the target line voltage values of all electrical modules in the electrical cabinet are received, the electrical modules in the electrical cabinet are sorted according to the target line voltage values of the electrical modules in a preset size order to form a first sorting list containing the addresses of the electrical modules.

[0059] The preset size order can be a descending order or an ascending order, which can be set according to actual needs.

[0060] In the embodiment, when it is determined that the target line voltage values of all electrical modules in the electrical cabinet are received, the electrical modules in the electrical cabinet can be sorted according to the size of the target line voltage values in the above-mentioned preset size order to form a first sorting list containing the addresses of the electrical modules. The first sorting list can be a list of the addresses of the sorted electrical modules.

[0061] In S205, the first sorting list is matched with a preset second sorting list to identify the group number of the winding connected to the electrical module, and the group number is matched with the address of the electrical module. The second sorting list is used to represent the sorting of the winding group numbers of the windings according to the phase relationship of the windings.

[0062] The second sorting list is a list of the sorted group numbers of the windings, which is pre-stored in the electrical module.

[0063] After the first sorting list is matched with the preset second sorting list, the group number matched by the electrical module is the group number of the winding connected to the electrical module.

[0064] In some possible implementations, the group numbers of the windings can be sequentially increased from 1 in a descending order of winding angles. The winding angle can be understood as the phase shift angle of the winding. That is, the group number of the winding with the largest winding angle is 1, the group number of the winding with the second largest winding angle is 2, and so on.

[0065] In the embodiment, after receiving the group number self-identification command sent by the upper computer, the electrical module starts to perform group number self-identification, and when receiving the target line voltage values of all electrical modules in the electrical cabinet, the electrical module sorts all electrical modules in the electrical cabinet according to the target line voltage values of the electrical modules and a preset size order, forms a first sorting list containing addresses of the electrical modules, matches the first sorting list with a preset second sorting list, identifies the group number of the winding connected with itself by matching the group number with the address of itself, so that the electrical module can automatically identify the group number of the winding connected with itself regardless of the installation order of the electrical module by the operation and maintenance personnel, and the upper computer can save the corresponding relationship between the two according to the group number of the winding identified by each electrical module, so that the hibernation control can be accurately performed according to the corresponding relationship, the use of the electrical cabinet is not affected, and the operation and maintenance control difficulty of the operation and maintenance personnel can be reduced and the workload can be reduced.

[0066] In some embodiments, when each winding is connected with at least two electrical modules, the "sorting all electrical modules in the electrical cabinet according to the target line voltage values of the electrical modules and a preset size order to form a first sorting list containing addresses of the electrical modules" in S204 can include:

[0067] grouping the electrical modules in the electrical cabinet according to the target line voltage values of the electrical modules to form a plurality of electrical module groups; wherein the absolute value of the difference between the target line voltage values of any two electrical modules in each electrical module group is less than a preset voltage difference; and the number of the electrical module groups is the same as the number of the windings.

[0068] sorting the electrical module groups according to the target line voltage values of the electrical modules in each electrical module group and a preset size order to form a first sorting list containing addresses of the electrical modules.

[0069] Since the target line voltage values of the electrical modules connected with the same winding are the same or similar, and the target line voltage values of the electrical modules connected with different windings are quite different, which can be different by tens of volts. Therefore, when each winding is connected with at least two electrical modules, the electrical modules can be grouped first, that is, the electrical modules with the same or very similar target line voltage values are grouped into an electrical module group, so that one winding can correspond to one electrical module group. The absolute value of the difference between the target line voltage values of any two electrical modules in each electrical module group is less than a preset voltage difference, which is used to limit the target line voltage values of the electrical modules in the same electrical module group to be the same or similar, and the preset voltage difference is a relatively small value, which can be 1V, 2V, 0.5V, etc., and can be determined according to actual test.

[0070] After grouping, each electrical module group is sorted to form a first sorted list containing the addresses of the electrical modules. For example, the method of sorting each electrical module group can be: selecting a target electrical module from each electrical module group, sorting according to the target line voltage value of the target electrical module selected from each electrical module group in a predetermined size order, and the electrical module group where the target electrical module at the front is also at the front, and the electrical module group where the target electrical module at the back is also at the back, that is, the sorting order of the target electrical module is the sorting order of each electrical module group. Wherein the order of each electrical module in the electrical module group can be determined by sorting the target line voltage value in a predetermined size order.

[0071] In some embodiments, the "matching the first sorted list with the preset second sorted list to identify the group number of the winding connected to itself" in S205 can include:

[0072] According to the sorting order, each electrical module group in the first sorted list is matched with each winding group number in the second sorted list one by one, and the winding group number matched with the electrical module group where the address of itself is located is identified as the group number of the winding connected to itself.

[0073] The number of electrical module groups in the first sorted list is the same as the number of winding group numbers in the second sorted list, that is, one winding group number corresponds to one electrical module group. According to the sorting order, each electrical module group in the first sorted list is matched with each winding group number in the second sorted list one by one, that is, the corresponding relationship between each winding group number and each electrical module group can be obtained. In this corresponding relationship, the winding group number matched with the electrical module group where the address of itself is located can be found, and this group number is the group number of the winding connected to itself.

[0074] In some specific application scenarios, when each winding is connected to at least two electrical modules, the above plurality of electrical module groups can be represented by a two-dimensional array Group[b][c], where b is the number of windings, and c is the number of electrical modules corresponding to each winding. Write the addresses of each electrical module in the first sorted list into Group[b][c] in order of sorting, then each row in Group[b][c] represents an electrical module group. Each row in Group[b][c] matches a winding group number in the second sorted list, for example, the first row of data represents the addresses of the electrical modules corresponding to the winding ranked first in the second sorted list, the second row of data represents the addresses of the electrical modules corresponding to the winding ranked second in the second sorted list, and so on.

[0075] The addresses of the electrical modules in the first sorting list are sequentially written into Group[b][c] in the sorting order. When writing into the two-dimensional array Group[b][c], the writing is performed from left to right and from top to bottom, specifically, writing starts from Group[1][1], after filling the first row, the second row is written, and so on.

[0076] For example, assuming that there are 6 windings and 24 electrical modules, and each winding corresponds to 4 electrical modules, the two-dimensional array is Group[6][4]. Assuming that the sorted electrical modules are 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, the writing process is as follows: 2 is written into Group[1][1], 4 is written into Group[1][2], 6 is written into Group[1][3], 8 is written into Group[1][4], 10 is written into Group[2][1], 12 is written into Group[2][2], and so on, and finally 23 is written into Group[6][4].

[0077] Finally, according to the row in which the address of the electrical module is located in the two-dimensional array Group[b][c], the corresponding winding group number in the second sorting list is matched. For example, in the above example, 6 is located in Group[1][3], so the winding corresponding to the electrical module with the address of 6 is the winding ranked first in the second sorting list; 12 is located in Group[2][2], so the winding corresponding to the electrical module with the address of 12 is the winding ranked second in the second sorting list.

[0078] In some possible implementations, when each winding is connected to only one electrical module, at this time, the number of windings is the same as the number of electrical modules, and the matching of the first sorting list and the preset second sorting list to identify the group number of the winding connected to the electrical module can include:

[0079] According to the sorting order, the addresses of the electrical modules in the first sorting list are matched with the winding group numbers in the second sorting list one by one, and the winding group number matched with the address of the electrical module is identified as the group number of the winding connected to the electrical module.

[0080] In some embodiments, the second sorting list is determined according to the target line voltage values of the windings synchronously detected when the target line voltage of one of the windings passes through a zero point in a preset voltage direction, and sorted in a preset size order.

[0081] The one of the windings can be a winding with the largest winding angle, or any other winding, which is not limited here.

[0082] For example, suppose there are 6 windings, each pre-numbered according to its winding angle in descending order, as shown in Table 1. Here, the winding angle can be understood as the phase shift angle of the winding.

[0083] Table 1

[0084] Winding angle Corresponding number Winding angle 22.5° Winding group number 1 Winding angle 12.5° Winding group number 2 Winding angle 2.5° Winding group number 3 Winding angle -7.5° Winding group number 4 Winding angle -17.5° Winding group number 5 Winding angle -27.5° Winding group number 6

[0085] The voltage waveform diagram of the 6 windings is shown below. Figure 3 As shown. Figure 3 The diagram below could be a waveform representation of the line voltage between the U-phase and V-phase of each winding. (See also...) Figure 3 When the winding angle is 22.5°, that is, when the voltage of winding group 1 crosses zero from positive to negative, the voltages of each winding are as shown in Table 2. The order from largest to smallest is: winding group 4 > winding group 5 > winding group 6 > winding group 1 > winding group 2 > winding group 3. That is, when the preset voltage direction is from positive to negative and the preset size order is from largest to smallest, the order in the second sorting list can be 4, 5, 6, 1, 2, 3. When the winding angle is 22.5°, that is, when the voltage of winding group 1 crosses zero from negative to positive, the order of each winding voltage from largest to smallest is exactly the opposite. That is, when the preset voltage direction is from negative to positive and the preset size order is from largest to smallest, the order in the second sorting list can be 3, 2, 1, 6, 5, 4.

[0086] As can be seen from Table 2, the voltage values ​​of each winding differ significantly (greater than 50V) at the zero crossing point. Therefore, even if there is an error in the actual voltage sampling, this error will not affect the determination of the actual winding group number.

[0087] Table 2

[0088]

[0089] In some embodiments, when it is determined that it is not the first target module, broadcasting the target line voltage value corresponding to its own address includes:

[0090] The delay time is determined based on its own address, and after the delay time has elapsed, the target line voltage value corresponding to its own address is broadcast.

[0091] If a module determines itself to be the second target module, the target line voltage value corresponding to its own address broadcast is accompanied by an end flag. The second target module is the electrical module in the electrical cabinet that last broadcasts the target line voltage value corresponding to its own address. Accordingly, when each electrical module receives the target line voltage value accompanied by the end flag, it determines that it has received the target line voltage values ​​of all electrical modules in the electrical cabinet.

[0092] In the embodiment, to prevent the CAN bus data occupancy from exceeding the limit, each electrical module can delay sending the detected target line voltage value according to its own address. To prevent frame loss, 5 data frames containing the target line voltage value of the electrical module can be sent continuously every 1 ms.

[0093] In a possible implementation, the delay duration = address * fixed duration. The fixed duration can be 10 ms. For example, the delay duration of the electrical module with the address 5 is 50 ms, that is, after receiving the synchronization detection frame, the electrical module with the address 5 broadcasts and sends the target line voltage value corresponding to the address 5 after a delay of 50 ms.

[0094] The second target module can be the electrical module that last sends the target line voltage value corresponding to the address of the electrical module, and the second target module sends the target line voltage value carrying an end flag. For example, the second target module can be the electrical module with the largest address.

[0095] In some embodiments, the group number self-identification command is issued by the host computer when the number of the electrical modules currently online in the electrical cabinet is equal to the total number of the electrical modules in the preset electrical cabinet.

[0096] The group number self-identification command carries at least one of the address of the first target module, the number of windings, the number of electrical modules corresponding to each winding, and the address of the second target module.

[0097] The synchronization detection frame carries at least one of a synchronization flag, a preset voltage direction, and the address of the first target module.

[0098] In the embodiment, when the group number identification of the electrical module is needed, the host computer first determines whether the number of the electrical modules currently online in the electrical cabinet is equal to the total number of the electrical modules in the preset electrical cabinet. If yes, the group number self-identification command is broadcasted and issued. If no, the staff is reminded, and the determination whether the number of the electrical modules currently online in the electrical cabinet is equal to the total number of the electrical modules in the preset electrical cabinet is repeated until the number of the electrical modules currently online in the electrical cabinet is equal to the total number of the electrical modules in the preset electrical cabinet, and then S201 is performed.

[0099] The group number self-identification command can be a data frame containing 8 data bits, namely BYTE0 to BYTE7. BYTE0 can represent the address of the first target module; BYTE1 can represent the number of groups; BYTE2 can represent the number of electrical modules corresponding to each group, and in this embodiment, the number of electrical modules corresponding to different groups can be the same; BYTE3 can represent the address of the second target module; BYTE4 and BYTE5 can be fixed flag bits, represented in binary, where 1 indicates that the module at the corresponding address has completed curing, and 0 indicates that the module at the corresponding address has not completed curing, wherein BYTE4 can be the curing flag bit U32L, and BYTE5 can be the curing flag bit U32H; BYTE6 and BYTE7 can be reserved data bits.

[0100] In some possible implementations, the address of the first target module can be the smallest address among all electrical modules, and the address of the second target module can be the largest address among all electrical modules.

[0101] In some embodiments, after S205 described above, the group number identification method of the electrical module described above can further include:

[0102] The address of the electrical module and the matched group number are sent to the upper computer, so that the upper computer cures the correspondence between each group and each electrical module, and controls the sleep of each electrical module corresponding to each group according to the cured correspondence.

[0103] In this embodiment, after identifying the corresponding group number, each electrical module can send its address and the matched group number to the upper computer. The upper computer can cure the correspondence between the group number of each group and the address of each electrical module, form a group number address table, and store the correspondence between the group number and the address of the electrical module in the group number address table. The upper computer can control the sleep of each electrical module corresponding to each group according to the group number address table. The group number address table can be stored in the EEPROM (Electrically Erasable Programmable read only memory, Electrically Erasable Programmable read only memory) of the upper computer.

[0104] In order to save energy, the electrical modules in the electrical cabinet have a hibernation mechanism, and the hibernation control of the electrical cabinet can be controlled according to the group number address table. Taking the above example for illustration, assuming that the electrical modules corresponding to the 4th winding are 2, 4, 6 and 8 respectively, the addresses of the electrical modules on duty in the 4th winding can be 2, 4, 6 and 8 in turn, that is, the four electrical modules corresponding to the 4th winding are on duty in turn. The on-duty mechanism of other windings is similar to that of the 4th winding and will not be described again. Among them, the number of electrical modules on duty at each time for each winding is not specifically limited and can be set according to actual needs, such as 1, 2, etc.

[0105] In some embodiments, the winding group number identification method of the electrical module described above further comprises:

[0106] storing the target line voltage values of the electrical modules in a one-dimensional array according to the addresses of the corresponding electrical modules;

[0107] when receiving the target line voltage values of all the electrical modules in the electrical cabinet, judging whether the amount of data stored in the one-dimensional array is the same as the total number of electrical modules in the preset electrical cabinet;

[0108] if the amount of data stored in the one-dimensional array is the same as the total number of electrical modules in the preset electrical cabinet, sending a data amount consistent flag to the upper computer, so that the upper computer issues a sorting command to each electrical module after receiving the data amount consistent flag of all the electrical modules in the electrical cabinet;

[0109] Accordingly, according to the target line voltage values of each electrical module, all the electrical modules in the electrical cabinet are sorted according to the preset size order to form a first sorting list containing the addresses of each electrical module, including:

[0110] Upon receiving the sorting command, all the electrical modules in the electrical cabinet are sorted according to the target line voltage values of each electrical module according to the preset size order to form a first sorting list containing the addresses of each electrical module.

[0111] Among them, the one-dimensional array can be represented as Volt_Group[a], a is the number of electrical modules in the electrical cabinet. The target line voltage values of the electrical modules can be stored in the corresponding positions of the one-dimensional array according to the corresponding addresses, for example, the target line voltage value of the electrical module with address 1 is stored in Volt_Group[1], the target line voltage value of the electrical module with address a is stored in Volt_Group[a], etc.

[0112] In the embodiment, when it is determined according to the end flag that the target line voltage values of all the electrical modules in the electrical cabinet are received, whether the target line voltage values of all the electrical modules are acquired can be further determined by judging whether the amount of data (i.e., the target line voltage values) stored in the one-dimensional array is the same as the total number of the electrical modules in the electrical cabinet preset; if not, the data amount inconsistency flag is sent to the upper computer; if yes, the data amount consistency flag is sent to the upper computer.

[0113] If the upper computer receives the data amount inconsistency flag, the group number self-identification command is reissued, so that each electrical module executes the steps of S201 to S205 again. If the number of times of executing the above process reaches the preset number of times (for example, 3 times), the upper computer still receives the data amount inconsistency flag, and the staff is prompted to manually locate the group number.

[0114] After the upper computer receives the data amount consistency flag of all the electrical modules in the electrical cabinet, the sorting command is issued to each electrical module. When the electrical module receives the sorting command, the step of sorting all the electrical modules in the electrical cabinet according to the preset size order according to the target line voltage value of each electrical module to form the first sorting list containing the addresses of each electrical module is continued.

[0115] In some embodiments, when the electrical cabinet is powered on for the first time, the first target module supplies power to the upper computer, so that after the upper computer is powered on, it is determined whether all the electrical modules in the electrical cabinet have not been solidified. If yes, the first target module is controlled to work, and the other electrical modules are controlled not to work. If not, the electrical modules that have been solidified are controlled to work, and the electrical modules that have not been solidified are controlled not to work.

[0116] The address of each electrical module is determined according to the power-on sequence of each electrical module; the first target module is the electrical module that is powered on first in the electrical cabinet.

[0117] In the embodiment, the address of each electrical module can be determined according to the power-on sequence of each electrical module. The address of the electrical module that is powered on first is in the front, and the address of the electrical module that is powered on later is in the back. For example, the address of the first electrical module that is powered on is 1, the address of the second electrical module that is powered on is 2, and so on.

[0118] The first target module can be the module with the smallest address, i.e., the electrical module that is powered on first. When the electrical cabinet is powered on for the first time, since the first target module is powered on first, the first target module supplies power to the upper computer first. For example, the first target module can control the output with fixed default control parameters to supply power to the upper computer.

[0119] After the host computer is powered on, it is judged whether all electrical modules in the electrical cabinet have not been solidified, if all electrical modules in the electrical cabinet have not been solidified, it is controlled that only the first target module outputs, other electrical modules do not output and do not work, otherwise, the electrical modules that have been solidified work, and the electrical modules that have not been solidified do not work, thereby the electrical modules that have not been solidified can be prevented from outputting, and the output of the electrical cabinet is safe and reliable.

[0120] The host computer provides a group number light-on function, that is, the staff presses the button corresponding to the winding group number, and the host computer can control the electrical module corresponding to the group number to light on after being solidified, thereby the staff can verify whether the solidification result is correct.

[0121] The winding group number identification method of the electrical module can make the address of the electrical module no longer strictly correspond to the winding group number, the on-site operation and maintenance is relatively simple, when initially powered on or the module is replaced, the correspondence of the module no longer needs to be strictly paid attention to, all modules can be randomly placed in any winding, the address is automatically identified according to the power-on sequence, the group number can be one-key self-identified through the host computer, the address can be flexibly configured, and the on-site operability is strong; the software version of the electrical module is less, and the software maintenance workload is relatively simple, and only one set of software needs to be maintained; the loop adaptability is strong, and the corresponding loop parameter can be automatically selected according to the corresponding group to achieve the optimal control effect.

[0122] It should be understood that the size of the serial number of each step in the above embodiment does not mean the order of execution, and the execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0123] The following is a device embodiment of the present application, and for details not described in detail, reference can be made to the corresponding method embodiments described above.

[0124] Figure 4 The structure schematic diagram of the winding group number identification device of the electrical module provided by the embodiment of the present application is shown, only the parts related to the embodiment of the present application are shown for the convenience of description, and the details are as follows:

[0125] A plurality of electrical modules are located in an electrical cabinet, a plurality of windings are connected to the electrical cabinet, and each winding is connected to at least one electrical module. Figure 4 As shown, the winding group number identification device 30 of the electrical module can be applied to any electrical module, and can include a module judgment module 31, a first processing module 32, a second processing module 33, a sorting module 34 and a group number identification module 35.

[0126] The module judgment module 31 is used for determining whether itself is the first target module when receiving the group number self-identification command sent by the host computer;

[0127] The first processing module 32 is configured to, if it is determined that the first target module, detect a target line voltage value of the first target module when a target line voltage of the first target module is at a zero-crossing point in a preset voltage direction, and broadcast the target line voltage value corresponding to the address of the first target module and a synchronous detection frame; the synchronous detection frame is used to instruct other electrical modules in the electrical cabinet to synchronously detect respective target line voltage values.

[0128] The second processing module 33 is configured to, if it is determined that the first target module, detect a target line voltage value of the first target module when a target line voltage of the first target module is at a zero-crossing point in a preset voltage direction, and broadcast the target line voltage value corresponding to the address of the first target module and a synchronous detection frame; the synchronous detection frame is used to instruct other electrical modules in the electrical cabinet to synchronously detect respective target line voltage values.

[0129] The sorting module 34 is configured to, when target line voltage values of all electrical modules in the electrical cabinet are received, sort all electrical modules in the electrical cabinet according to the target line voltage values of the respective electrical modules in a preset size order, and form a first sorting list containing addresses of the electrical modules.

[0130] The group number identification module 35 is configured to match the first sorting list with a preset second sorting list to identify a group number of a winding connected to the electrical module, and match the group number with the address of the electrical module; the second sorting list is used to represent an order of winding group numbers formed according to phase relationships of the windings.

[0131] In a possible implementation, the sorting module 34 is specifically configured to:

[0132] When each winding is connected to at least two electrical modules, group the electrical modules in the electrical cabinet according to the target line voltage values of the respective electrical modules, and form a plurality of electrical module groups; an absolute value of a difference between the target line voltage values of any two electrical modules in each electrical module group is less than a preset voltage difference value; and the number of the electrical module groups is the same as the number of the windings.

[0133] Sort the electrical module groups according to the target line voltage values of the electrical modules in the respective electrical module groups in a preset size order, and form a first sorting list containing addresses of the electrical modules.

[0134] In a possible implementation, the group number identification module 35 is specifically configured to:

[0135] Match each electrical module group in the first sorting list with each winding group number in the second sorting list one by one according to the sorting order, and identify a winding group number matched with an electrical module group in which the address of the electrical module is located as a group number of a winding connected to the electrical module.

[0136] In a possible implementation, the second sorting list is determined according to the target line voltage values of the windings synchronously detected when the target line voltage of one of the windings passes zero in the preset voltage direction, and sorted according to a preset size order.

[0137] In a possible implementation, the second processing module 33 can be further configured to:

[0138] When it is determined that the electrical module itself is not the first target module, the delay duration is determined according to the address of the electrical module itself, and after the delay duration, the target line voltage value corresponding to the address of the electrical module itself is broadcasted;

[0139] If it is determined that the electrical module itself is the second target module, the target line voltage value corresponding to the address of the electrical module itself broadcasted carries an end flag bit; the second target module is the electrical module in the electrical cabinet that broadcasts the target line voltage value corresponding to the address of the electrical module itself lastly; correspondingly, when each electrical module receives the target line voltage value carrying the end flag bit, it is determined that the target line voltage values of all the electrical modules in the electrical cabinet are received.

[0140] In a possible implementation, the group number self-identification command is a command issued by the upper computer when it is determined that the number of the electrical modules currently online in the electrical cabinet is the same as the preset total number of the electrical modules in the electrical cabinet.

[0141] The group number self-identification command carries the address of the first target module, the number of windings, the number of electrical modules corresponding to each winding, and the address of the second target module.

[0142] The synchronous detection frame carries a synchronization flag bit, a preset voltage direction, and the address of the first target module.

[0143] In a possible implementation, the winding group number identification device of the electrical module further comprises a sending module.

[0144] The sending module is configured to send the address of the electrical module and the matched winding group number to the upper computer, so that the upper computer solidifies the correspondence between each winding and each electrical module, and controls the electrical modules corresponding to each winding respectively according to the solidified correspondence.

[0145] In a possible implementation, when the electrical cabinet is powered on for the first time, the first target module supplies power to the upper computer, so that after the upper computer is powered on, it is determined whether all the electrical modules in the electrical cabinet have been solidified, if yes, the first target module is controlled to work and the other electrical modules are controlled not to work, and if no, the electrical modules that have been solidified are controlled to work and the electrical modules that have not been solidified are controlled not to work.

[0146] The address of each electrical module is determined according to the power-on sequence of each electrical module; and the first target module is the electrical module that is powered on first in the electrical cabinet.

[0147] Figure 5 is a schematic diagram of an electrical module provided by an embodiment of the present application. As shown in Figure 5 the electrical module 4 of this embodiment includes a processor 40 and a memory 41. The memory 41 is configured to store a computer program 42, and the processor 40 is configured to invoke and run the computer program 42 stored in the memory 41 to perform the steps in the above-described winding group number identification method embodiments of each electrical module, such as Figure 2 S201-S205 shown. Alternatively, the processor 40 is configured to invoke and run the computer program 42 stored in the memory 41 to implement the functions of each module / unit in the above-described device embodiments, such as Figure 4 the functions of the modules / units 31-35 shown.

[0148] For example, the computer program 42 can be divided into one or more modules / units, which are stored in the memory 41 and executed by the processor 40 to complete the present application. The one or more modules / units can be a series of computer program instruction segments that can complete a specific function, which are used to describe the execution process of the computer program 42 in the electrical module 4. For example, the computer program 42 can be divided into Figure 4 the modules / units 31-35 shown.

[0149] The electrical module 4 can be a rectifier. The electrical module 4 can include, but is not limited to, the processor 40, the memory 41. Those skilled in the art can understand that Figure 5 the electrical module 4 is only an example and does not constitute a limitation on the electrical module 4, and can include more or fewer components than shown, or combine certain components, or different components, for example, the electrical module can also include an input / output device, a network access device, a bus, etc.

[0150] The processor 40 can be a central processing unit (CPU), and can also be other general-purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0151] The memory 41 can be an internal storage unit of the electrical module 4, such as a hard disk or a memory of the electrical module 4. The memory 41 can also be an external storage device of the electrical module 4, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the memory 41 can also include both the internal storage unit and the external storage device of the electrical module 4. The memory 41 is used to store the computer program and other programs and data required by the electrical module. The memory 41 can also be used to temporarily store data that has been output or will be output.

[0152] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional units and modules is exemplified, and in actual application, the above functions can be completed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to complete all or part of the above described functions. Each functional unit and module in the embodiment can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit, and the integrated unit can be realized in the form of hardware or in the form of software functional unit. In addition, the specific names of each functional unit and module are only for easy distinction, and do not limit the protection scope of the present application. The specific working process of the units and modules in the system can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0153] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described or recorded in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0154] Those skilled in the art can understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0155] In the embodiments provided by the present application, it should be understood that the disclosed apparatus / electrical module and method can be implemented in other ways. For example, the division of the apparatus / electrical module embodiments described above is only a logical function division, and there can be another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or communication connection between each other can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or in other forms.

[0156] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiments.

[0157] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically independently, or two or more units can be integrated into one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0158] The integrated module / unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the above-mentioned embodiment methods can also be completed by a computer program instructing related hardware, and the computer program can be stored in a computer readable storage medium. The computer program can implement the steps of the winding group number identification method embodiments of each electrical module when executed by a processor. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or some intermediate forms, etc. The computer readable medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the contents included in the computer readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

[0159] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A method for identifying the winding group number of an electrical module, wherein multiple electrical modules are located within an electrical cabinet, multiple windings are connected to the electrical cabinet, and each winding is connected to at least one electrical module; characterized in that, The method is applied to any of the electrical modules, including: When it receives a group number self-identification command from the host computer, it determines whether it is the first target module; If a module determines itself to be the first target module, it detects its own target line voltage value when its target line voltage crosses zero in a preset voltage direction, and broadcasts the target line voltage value corresponding to its own address and a synchronization detection frame; the synchronization detection frame is used to instruct other electrical modules in the electrical cabinet to synchronously detect their respective target line voltage values. If it is determined that it is not the first target module, when it receives the synchronization detection frame, it detects its own target line voltage value and broadcasts the target line voltage value corresponding to its own address. Upon receiving the target line voltage values ​​of all electrical modules in the electrical cabinet, the electrical modules in the electrical cabinet are sorted according to the target line voltage values ​​of each electrical module and in a preset order to form a first sorted list containing the addresses of each electrical module. The first sorting list is matched with a preset second sorting list to identify the group number of the winding connected to itself, and the group number is matched with its own address; wherein, the second sorting list is used to represent the sorting of the winding group numbers formed by each winding according to its phase relationship.

2. The winding group number identification method for an electrical module according to claim 1, characterized in that, When each winding is connected to at least two electrical modules, the electrical modules in the electrical cabinet are sorted according to their target line voltage values ​​and in a preset order to form a first sorted list containing the addresses of each electrical module, including: Based on the target line voltage values ​​of each electrical module, the electrical modules in the electrical cabinet are grouped to form multiple electrical module groups; wherein, the absolute value of the difference between the target line voltage values ​​of any two electrical modules within each electrical module group is less than a preset voltage difference; the number of electrical module groups is the same as the number of windings. Based on the target line voltage values ​​of the electrical modules in each electrical module group, the electrical module groups are sorted according to the preset size order to form the first sorted list containing the addresses of each electrical module.

3. The winding group number identification method for an electrical module according to claim 2, characterized in that, The step of matching the first sorting list with a preset second sorting list to identify the group number of the winding connected to it includes: According to the sorting order, each electrical module group in the first sorting list is matched one by one with each winding group number in the second sorting list, and the winding group number that matches the electrical module group where its own address is located is identified as the group number of the winding connected to itself.

4. The winding group number identification method for an electrical module according to claim 1, characterized in that, The second sorting list is determined by sorting the target line voltage values ​​of each winding according to the preset size order, based on the target line voltage of one of the windings being detected synchronously when the target line voltage of the winding crosses zero in the preset voltage direction.

5. The winding group number identification method for an electrical module according to claim 1, characterized in that, When it is determined that it is not the first target module, the broadcast transmission of the target line voltage value corresponding to its own address includes: The delay time is determined based on its own address, and after the delay time has elapsed, the target line voltage value corresponding to its own address is broadcast. If a module determines itself to be the second target module, the target line voltage value corresponding to its own address broadcast is accompanied by an end flag. The second target module is the electrical module in the electrical cabinet that last broadcasts the target line voltage value corresponding to its own address. Accordingly, when each electrical module receives the target line voltage value carrying the end flag, it determines that it has received the target line voltage values ​​of all electrical modules in the electrical cabinet.

6. The winding group number identification method for an electrical module according to claim 1, characterized in that, The group number self-identification command is a command issued by the host computer when it determines that the number of currently online electrical modules in the electrical cabinet is the same as the preset total number of electrical modules in the electrical cabinet; The group number self-identification command carries the address of the first target module, the number of windings, the number of electrical modules corresponding to each winding, and the address of the second target module. The synchronization detection frame carries a synchronization flag, the preset voltage direction, and the address of the first target module.

7. The winding group number identification method for an electrical module according to any one of claims 1 to 6, characterized in that, After matching the first sorting list with a preset second sorting list to identify the group number of the winding connected to itself, and matching the group number with its own address, the winding group number identification method of the electrical module further includes: The device sends its own address and the matching winding group number to the host computer, so that the host computer can solidify the correspondence between each winding and each electrical module, and perform sleep control on the electrical module corresponding to each winding according to the solidified correspondence.

8. The winding group number identification method for an electrical module according to any one of claims 1 to 6, characterized in that, When the electrical cabinet is powered on for the first time, the first target module supplies power to the host computer so that after the host computer is powered on, it determines whether all electrical modules in the electrical cabinet have not been cured. If so, it controls the first target module to work and controls other electrical modules to not work. If not, it controls the cured electrical modules to work and controls the uncured electrical modules to not work. The addresses of each electrical module are determined according to the power-on order of each electrical module; the first target module is the electrical module that is powered on first in the electrical cabinet.

9. An electrical module, characterized in that, It includes a processor and a memory, the memory being used to store a computer program, and the processor being used to call and run the computer program stored in the memory to perform the winding group number identification method of the electrical module as described in any one of claims 1 to 8.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the winding group number identification method of the electrical module as described in any one of claims 1 to 8.

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