A manual zero-crossing fast disconnection control system

Abstract

The present invention discloses an artificial zero-crossing fast disconnection control system, including a data acquisition module, a zero-crossing detection module, a time compensation module, an instruction transmission module, a data interaction center and an equipment control switch module, and the present invention relates to the field of data detection technology. The artificial zero-crossing fast disconnection control system forms a change model about an AC signal through historical data in a data storage library, and finds corresponding multiple zero points based on the change model, introduces real-time data into the change model to obtain corresponding zero-crossing prediction points, and generates a fast-break instruction for transmission, and generates corresponding recovery prediction points based on the zero-crossing prediction points, so that not only the zero point data of the AC signal corresponding to the device can be predicted in advance, but also the processing of the artificial zero-crossing fast disconnection operation can be improved by compensating for the time required for subsequent processing, thereby protecting the equipment while improving the processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of data detection, and in particular to an artificial zero-crossing fast disconnection control system. Background Art

[0002] The reference patent name is: A method, system, device and computer storage medium for detecting a zero-crossing signal (patent publication number: CN108896813A, patent publication date: 2018-11-27). The method includes: when acquiring a zero-crossing signal, turning off the acquisition function of the zero-crossing signal to interrupt the acquisition of the zero-crossing signal; when the duration of turning off the acquisition function of the zero-crossing signal reaches a preset duration, turning on the acquisition function of the zero-crossing signal to re-acquire the zero-crossing signal.

[0003] Based on the description in the above-mentioned document, the existing AC signal passes through the zero point when changing from a positive value to a negative value or from a negative value to a positive value. The current change when passing through the zero point may cause damage to the equipment in the substation area. After passing through the zero point, the command signal is often generated and transmitted to the control end to implement the protection operation of the equipment. This consumes a long time, which affects the sensitivity of the equipment protection. For this reason, the present invention provides an artificial zero-crossing rapid disconnection control system. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an artificial zero-crossing rapid disconnection control system, which solves the problem that the data detection system often consumes a long time when generating a command signal after passing through the zero point and transmitting it to the control end to implement the protection operation of the equipment, and still causes damage to the equipment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an artificial zero-crossing fast disconnection control system, comprising:

[0006] The data acquisition module is used to collect real-time data of the operation of each device in the substation area, and collect historical data of regional equipment and summarize them in the data storage library;

[0007] The zero-crossing detection module forms a change model of the AC signal through the historical data in the data repository, finds the corresponding multiple zero points based on the change model, introduces the real-time data into the change model to obtain the corresponding zero-crossing prediction point, generates a fast-break instruction for transmission, and generates the corresponding recovery prediction point based on the zero-crossing prediction point;

[0008] The time compensation module performs data tracing after the zero point in the change model is generated and obtains the time of transmission to the maintenance personnel, and calculates the total time from the generation of the instruction to the manual completion of the operation, and transmits the obtained time data to the change model for compensation update to realize the calculation of the zero-crossing prediction point;

[0009] An instruction transmission module is used to transmit the instruction of the rapid disconnection instruction to the data interaction center;

[0010] The data exchange center receives data and completes display operations, while transmitting instruction data to corresponding staff for processing operations;

[0011] The equipment control switch module is used to control the disconnection of equipment in the substation area and to control the disconnection operation after personnel receive instructions.

[0012] Preferably, the data acquisition module performs the following processing operations after data acquisition:

[0013] A1. Use voltage meters and current meters to collect real-time data of the operation of each device in the substation area and realize data transmission through wireless communication;

[0014] A2. Classify the data according to the type of equipment, and sort the data according to the time of collection to form a basic data set marked as M;

[0015] A3. While collecting data, the location information of the equipment in the substation area and the rate of signal transmission are recorded.

[0016] Preferably, the operation of the zero-crossing detection module to form a model of the alternating current signal change is:

[0017] B1. Sort the historical operation data of each device in the substation area in the data repository according to the collection time;

[0018] B2. Establish an XY coordinate system change model based on the sorted data, establish an X-axis according to the change of the acquisition time, establish a Y-axis according to the change of the alternating current corresponding to the acquisition time, and input the values ​​of the corresponding acquisition time nodes into the XY coordinate system change model to form a historical waveform curve;

[0019] B3. Obtain the cycle of the value change of the AC signal based on the historical waveform curve.

[0020] Preferably, the operation of calculating the period of the value change of the AC signal in B3 is:

[0021] b31. Based on the historical waveform curve, the expression function is obtained as F(X), and the peak value of the curve is calculated as Fmax(X) according to the function F(X);

[0022] b32, and mark the peak value Fmax(X) of the adjacent curve on the curve, and find the corresponding time node on the X axis with the peak value Fmax(X) as X n-1 and X n , and in the interval [X n-1 , Xn ] is a cycle of the historical waveform curve;

[0023] b33. Use the traversal window to find the corresponding number of zero points and the time nodes on the X-axis on a curve segment of a cycle.

[0024] Preferably, the operation of traversing the window in b33 for finding the zero point is:

[0025] C1. Set the traversal window to y[u, v], where u is the starting node value of the traversal window on the X axis, and v is the starting node value of the traversal window on the Y axis. The traversal window y[u, v] starts from the interval [X n-1 , X n ] to move along the curved segment path;

[0026] C2. In the process of moving the traversing window y[u, v], the value m on the X-axis is increased, and the value (v+m) corresponding to the traversing window on the Y-axis is extracted;

[0027] C3, and when v+m=0, a zero point is generated and the node value on the X-axis is (u+m), until in the interval [X n-1 , X n ] to complete the travel operation and find all zero points.

[0028] Preferably, the time compensation module performs data tracing after the zero point in the change model is generated and obtains the time of transmission to the maintenance personnel, and calculates the total time from the generation of the instruction to the manual completion of the operation in the following steps:

[0029] D1. After the zero point is generated, the basic data set M generates a signal from the zero-crossing detection module and transmits it to the data interaction center through the instruction transmission module, and the data interaction center generates a disconnection instruction to transmit the signal to the device control point corresponding to the zero point, and performs processing operations based on the personnel response;

[0030] D2. Find the device location information corresponding to the zero point based on data tracing, and use GPS signal positioning to extract the distance between the device signal receiving and sending point and the data exchange center signal receiving and sending point, and extract the time for personnel to respond and complete the processing operation after the response;

[0031] D3, and calculate the total time taken from the generation of the instruction to the manual completion of the operation based on the data in D2.

[0032] Preferably, the formula for calculating the total time from the generation of the instruction to the manual completion of the operation in D3 is:

[0033] T=t1+t2;

[0034] Where T is the total time from the command generation to the manual completion of the operation, t1 is the transmission time between the signal receiving and sending point of the device and the signal receiving and sending point of the data interaction center, and t2 is the time for the personnel to respond and complete the processing operation after the response, and is a fixed constant value;

[0035] The calculation formula of t1 is:

[0036] t1=L / V;

[0037] L is the distance between the device signal receiving and sending point and the data exchange center signal receiving and sending point, and V is the transmission rate from the data exchange center to the device signal receiving and sending point.

[0038] Preferably, the zero-crossing detection module transmits the time data obtained by the time compensation module to the change model compensation update to realize the operation of calculating the zero-crossing prediction point:

[0039] E1. The total time T from when the calculation instruction is generated to when the manual operation is completed is introduced into the variation model for compensation;

[0040] E2. Based on the operation b33, find the node value on the X-axis at the zero point, and compensate the time T according to the node value at the zero point, that is, the node value on the X-axis at the zero-crossing prediction point is marked as X. j ;

[0041] E3, after inputting the real-time collected data into the change model in chronological order, the zero-crossing prediction point X j When the AC signal passes through zero, the switch disconnection operation of the corresponding device is completed.

[0042] Preferably, the zero-crossing prediction point in E2 is located at the node value X on the X-axis. j The calculation formula is:

[0043] X j =u+mT;

[0044] u+m is the node value that generates a zero point and is located on the X-axis, and T is the total time from the generation of the instruction to the manual completion of the operation.

[0045] Preferably, the zero-crossing detection module generates a corresponding recovery prediction point based on the zero-crossing prediction point by:

[0046] S1, after finding the corresponding zero-crossing prediction point, the node value X located on the X-axis at the zero-crossing prediction point j Increase the buffer threshold mark to t3;

[0047] S2, that is, the node value of the restored prediction point located on the X-axis is (X j +t3, then the AC signal satisfies the node value (Xj +t3), the transmission completes the instruction operation of closing the device control switch.

[0048] The present invention provides an artificial zero-crossing rapid disconnection control system. Compared with the prior art, it has the following beneficial effects:

[0049] (1) The artificial zero-crossing fast-breaking control system forms a change model of the AC power signal through the historical data in the data storage library, and finds the corresponding multiple zero points based on the change model, introduces real-time data into the change model to obtain the corresponding zero-crossing prediction point, and generates a fast-breaking instruction for transmission, and generates the corresponding recovery prediction point based on the zero-crossing prediction point. In this way, not only can the zero point data of the AC power signal corresponding to the equipment be predicted in advance, but also the processing of the artificial zero-crossing fast-breaking operation can be improved by compensating for the time required for subsequent processing, thereby protecting the equipment and improving the processing efficiency.

[0050] (2) The manual zero-crossing rapid disconnection control system uses a roaming window to find the corresponding zero point number and the time node on the X-axis on a curve segment of a cycle, so as to find the zero point data within the AC signal cycle, and perform data tracing after the zero point in the change model is generated, so as to calculate the total time taken from the generation of the instruction to the completion of the manual operation, so as to realize the compensation operation of the change model, so that when the real-time data is introduced, the prediction point of the disconnection instruction can be found more quickly, thereby ensuring the accuracy and timeliness of the zero-crossing rapid disconnection data detection.

[0051] (3) The artificial zero-crossing rapid disconnection control system, after finding the corresponding zero-crossing prediction point, the zero-crossing detection module generates the corresponding recovery prediction point based on the zero-crossing prediction point, and transmits the command operation of the device control switch closure, thereby realizing the switch closure of the device after zero crossing, and facilitating the re-disconnection at the next zero crossing. At the same time, it gives the device detection time after the zero crossing, thereby improving the safety of equipment use in the substation area. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a principle block diagram of the fast disconnection data control system of the present invention;

[0053] Figure 2 A flow chart for establishing an alternating current signal variation model of the present invention;

[0054] Figure 3 It is a schematic diagram of the zero-crossing prediction point of the present invention. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] See also Figure 1-Figure 3 , the present invention provides two technical solutions:

[0057] Embodiment 1: A manual zero-crossing fast disconnection control system, comprising:

[0058] The data acquisition module is used to collect real-time data of the operation of each device in the substation area, and collect historical data of regional equipment and summarize them in the data storage library;

[0059] The zero-crossing detection module forms a change model of the AC signal through the historical data in the data repository, finds the corresponding multiple zero points based on the change model, introduces the real-time data into the change model to obtain the corresponding zero-crossing prediction point, generates a fast-break instruction for transmission, and generates the corresponding recovery prediction point based on the zero-crossing prediction point;

[0060] The time compensation module performs data tracing after the zero point in the change model is generated and obtains the time of transmission to the maintenance personnel, and calculates the total time from the generation of the instruction to the manual completion of the operation, and transmits the obtained time data to the change model for compensation update to realize the calculation of the zero-crossing prediction point;

[0061] An instruction transmission module is used to transmit the instruction of the rapid disconnection instruction to the data interaction center;

[0062] The data exchange center receives data and completes display operations, while transmitting instruction data to corresponding staff for processing operations;

[0063] The equipment control switch module is used to control the disconnection of equipment in the substation area and to control the disconnection operation after personnel receive instructions.

[0064] The equipment control switch module is installed in a low-voltage dual-power high-speed switching device, and the system is used for the manual zero-crossing module in the device for control operations.

[0065] Among them, a change model of the AC power signal is formed through the historical data in the data storage library, and the corresponding multiple zero points are found based on the change model. The real-time data is introduced into the change model to obtain the corresponding zero-crossing prediction point, and a quick-break instruction is generated for transmission. The corresponding recovery prediction point is generated based on the zero-crossing prediction point. In this way, not only the zero-point data of the AC power signal corresponding to the equipment can be predicted in advance, but also the processing of the manual zero-crossing quick-breaking operation can be improved by compensating for the time required for subsequent processing, thereby protecting the equipment and improving the processing efficiency.

[0066] In the embodiment of the present invention, the data acquisition module performs the following processing operations after data acquisition:

[0067] A1. Use voltage meters and current meters to collect real-time data of the operation of each device in the substation area and realize data transmission through wireless communication;

[0068] A2. Classify the data according to the type of equipment, and sort the data according to the time of collection to form a basic data set marked as M;

[0069] A3. While collecting data, the location information of the equipment in the substation area and the rate of signal transmission are recorded.

[0070] In the embodiment of the present invention, the operation of the zero-crossing detection module to form a model of the alternating current signal change is:

[0071] B1. Sort the historical operation data of each device in the substation area in the data repository according to the collection time;

[0072] B2. Establish an XY coordinate system change model based on the sorted data, establish an X-axis according to the change of the acquisition time, establish a Y-axis according to the change of the alternating current corresponding to the acquisition time, and input the values ​​of the corresponding acquisition time nodes into the XY coordinate system change model to form a historical waveform curve;

[0073] B3. Obtain the cycle of the value change of the AC signal based on the historical waveform curve.

[0074] In the embodiment of the present invention, the operation of calculating the period of the value change of the AC signal in B3 is:

[0075] b31. Based on the historical waveform curve, the expression function is obtained as F(X), and the peak value of the curve is calculated as Fmax(X) according to the function F(X);

[0076] b32, and mark the peak value Fmax(X) of the adjacent curve on the curve, and find the corresponding time node on the X axis with the peak value Fmax(X) as X n-1 and X n , and in the interval [X n-1 , Xn ] is a cycle of the historical waveform curve;

[0077] b33. Use the traversal window to find the corresponding number of zero points and the time nodes on the X-axis on a curve segment of a cycle.

[0078] In the embodiment of the present invention, the operation of traversing the window in b33 for finding the zero point is:

[0079] C1. Set the traversal window to y[u, v], where u is the starting node value of the traversal window on the X axis, and v is the starting node value of the traversal window on the Y axis. The traversal window y[u, v] starts from the interval [X n-1 , X n ] to move along the curved segment path;

[0080] C2. In the process of moving the traversing window y[u, v], the value m on the X-axis is increased, and the value (v+m) corresponding to the traversing window on the Y-axis is extracted;

[0081] C3, and when v+m=0, a zero point is generated and the node value on the X-axis is (u+m), until in the interval [X n-1 , X n ] to complete the travel operation and find all zero points.

[0082] Among them, by using the traveling window to find the corresponding number of zero points on the curve segment of a cycle and the time node on the X-axis, the zero-point data within the AC signal cycle can be found, and the data source is traced after the zero point in the change model is generated, so as to calculate the total time taken from the generation of the instruction to the manual completion of the operation, so as to realize the compensation operation of the change model, so that when the real-time data is introduced, the prediction point of the disconnection instruction can be found more quickly, ensuring the accuracy and timeliness of the zero-crossing rapid disconnection data detection.

[0083] In the embodiment of the present invention, the time compensation module performs data tracing after the zero point in the change model is generated and obtains the time of transmission to the maintenance personnel, and calculates the total time from the generation of the instruction to the manual completion of the operation in the following steps:

[0084] D1. After the zero point is generated, the basic data set M generates a signal from the zero-crossing detection module and transmits it to the data interaction center through the instruction transmission module, and the data interaction center generates a disconnection instruction to transmit the signal to the device control point corresponding to the zero point, and performs processing operations based on the personnel response;

[0085] D2. Find the device location information corresponding to the zero point based on data tracing, and use GPS signal positioning to extract the distance between the device signal receiving and sending point and the data exchange center signal receiving and sending point, and extract the time for personnel to respond and complete the processing operation after the response;

[0086] D3, and calculate the total time taken from the generation of the instruction to the manual completion of the operation based on the data in D2.

[0087] In the embodiment of the present invention, the formula for calculating the total time from the generation of the calculation instruction to the manual completion of the operation in D3 is:

[0088] T=t1+t2;

[0089] Where T is the total time from the command generation to the manual completion of the operation, t1 is the transmission time between the signal receiving and sending point of the device and the signal receiving and sending point of the data interaction center, and t2 is the time for the personnel to respond and complete the processing operation after the response, and is a fixed constant value;

[0090] The calculation formula of t1 is:

[0091] t1=L / V;

[0092] L is the distance between the device signal receiving and sending point and the data exchange center signal receiving and sending point, and V is the transmission rate from the data exchange center to the device signal receiving and sending point.

[0093] In the embodiment of the present invention, the operation of the zero-crossing detection module transferring the time data obtained by the time compensation module to the change model compensation update to realize the calculation of the zero-crossing prediction point is:

[0094] E1. The total time T from when the calculation instruction is generated to when the manual operation is completed is introduced into the variation model for compensation;

[0095] E2. Based on the operation b33, find the node value on the X-axis at the zero point, and compensate the time T according to the node value at the zero point, that is, the node value on the X-axis at the zero-crossing prediction point is marked as X. j ;

[0096] E3, after inputting the real-time collected data into the change model in chronological order, the zero-crossing prediction point X j When the AC signal passes through zero, the switch disconnection operation of the corresponding device is completed.

[0097] In the embodiment of the present invention, the zero-crossing prediction point in E2 is located at the node value X on the X-axis. j The calculation formula is:

[0098] X j =u+mT;

[0099] u+m is the node value that generates a zero point and is located on the X-axis, and T is the total time from the generation of the instruction to the manual completion of the operation.

[0100] In the embodiment of the present invention, the zero-crossing detection module generates a corresponding recovery prediction point based on the zero-crossing prediction point by:

[0101] S1, after finding the corresponding zero-crossing prediction point, the node value X located on the X-axis at the zero-crossing prediction point j Increase the buffer threshold mark to t3;

[0102] S2, that is, the node value of the restored prediction point located on the X-axis is (X j +t3, then the AC signal satisfies the node value (X j +t3), the transmission completes the instruction operation of closing the device control switch.

[0103] Among them, after finding the corresponding zero-crossing prediction point, the zero-crossing detection module generates a corresponding recovery prediction point based on the zero-crossing prediction point, and transmits the instruction operation of the equipment control switch closure, thereby realizing the switch closure of the equipment after zero crossing, and facilitating the re-disconnection at the next zero crossing. At the same time, it gives the equipment detection time after the zero crossing, thereby improving the safety of equipment use in the substation area.

[0104] Embodiment 2 is different from Embodiment 1 in that: a specific implementation method of a substation area control terminal using the artificial zero-crossing fast disconnection data detection system of the present invention is also described, so as to realize real-time monitoring and operation of various devices in the substation A area, and record the operation status of various devices in the substation area;

[0105] After data processing according to the above system, the signal cycle of the AC power is 0.04S, that is, the time from the equipment to the first zero point when the equipment is running is 0.02s. After operation, the operation data of each device in the substation A area are collected and input into the zero-crossing fast breaking data detection system for detection, and the required compensation time T is calculated;

[0106] The time t2 for personnel to respond and complete the processing operation after the response is 0.003S, and the transmission time t1 between the signal transceiver point of the device and the signal transceiver point of the data exchange center is calculated by the formula t1=L / V. It is known that the distance L is 10km and the transmission rate V is 5000km / S. Therefore, the transmission time t1 between the signal transceiver point of the device and the signal transceiver point of the data exchange center is 0.002S, so the required compensation time T is t1+t2, which is equal to 0.005S.

[0107] Moreover, according to historical data, after a week of AC signal transmission, the zero-crossing condition caused 32 of the 100 devices in area A of the substation to malfunction, and other problems were not ruled out. However, after adopting the zero-crossing fast disconnection data detection system, only 4 of the 100 devices in area A of the substation malfunctioned, and after finding out the cause, it was found that it was not a malfunction caused by zero-crossing.

[0108] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0109] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0110] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An artificial zero-crossing rapid disconnection control system, characterized in that: include: The data acquisition module is used to collect real-time data of the operation of each device in the substation area, and collect historical data of regional equipment and summarize them in the data storage library; The zero-crossing detection module forms a change model of the AC signal through the historical data in the data repository, finds the corresponding multiple zero points based on the change model, introduces the real-time data into the change model to obtain the corresponding zero-crossing prediction point, generates a fast-break instruction for transmission, and generates the corresponding recovery prediction point based on the zero-crossing prediction point; The time compensation module performs data tracing after the zero point in the change model is generated and obtains the time of transmission to the maintenance personnel, and calculates the total time from the generation of the instruction to the manual completion of the operation, and transmits the obtained time data to the change model for compensation update to realize the calculation of the zero-crossing prediction point; An instruction transmission module is used to transmit the instruction of the rapid disconnection instruction to the data interaction center; The data exchange center receives data and completes display operations, while transmitting instruction data to corresponding staff for processing operations; Equipment control switch module, used for controlling the disconnection of equipment in the substation area, and realizing the control of the disconnection operation after the personnel receive the instruction; The operation of the zero-crossing detection module to form a model of the alternating current signal change is: B1. Sort the historical operation data of each device in the substation area in the data repository according to the collection time; B2. Establish an XY coordinate system change model based on the sorted data, establish an X-axis according to the change of the acquisition time, establish a Y-axis according to the change of the alternating current corresponding to the acquisition time, and input the values ​​of the corresponding acquisition time nodes into the XY coordinate system change model to form a historical waveform curve; B3. Obtain the cycle of the value change of the AC signal based on the historical waveform curve; The operation of calculating the period of the alternating current signal value change in B3 is: b31. Based on the historical waveform curve, the expression function is obtained as F(X), and the peak value of the curve is calculated as Fmax(X) according to the function F(X); b32, and mark the peak value Fmax(X) of the adjacent curve on the curve, and find the corresponding time node on the X axis with the peak value Fmax(X) as X n-1 and X n , and in the interval [X n-1 , X n ] is a cycle of the historical waveform curve; b33. Use the travel window to find the corresponding zero point number and the time node on the X-axis on a curve segment of a cycle; The operation of the traversal window in b33 for finding the zero point is: C1. Set the traversal window to y[u, v], where u is the starting node value of the traversal window on the X axis, and v is the starting node value of the traversal window on the Y axis. The traversal window y[u, v] starts from the interval [X n-1 , X n ] to move along the curved segment path; C2. In the process of moving the traversing window y[u, v], the value m on the X-axis is increased, and the value (v+m) corresponding to the traversing window on the Y-axis is extracted; C3, and when v+m=0, a zero point is generated and the node value on the X-axis is (u+m), until in the interval [X n-1 , X n ] to complete the travel operation and find all the zero points; The time compensation module performs data tracing after the zero point in the change model is generated and obtains the time of transmission to the maintenance personnel, and calculates the total time from the generation of the instruction to the manual completion of the operation in the following steps: D1. After the zero point is generated, the basic data set generates a signal from the zero-crossing detection module and transmits it to the data interaction center through the instruction transmission module. The data interaction center generates a disconnection instruction to transmit the signal to the device control point corresponding to the zero point, and performs processing operations based on the personnel response; D2. Find the device location information corresponding to the zero point based on data tracing, and use GPS signal positioning to extract the distance between the device signal receiving and sending point and the data exchange center signal receiving and sending point, and extract the time for personnel to respond and complete the processing operation after the response; D3, and calculate the total time taken from the generation of the instruction to the manual completion of the operation based on the data in D2; The operation of the time compensation module transferring the obtained time data to the change model for compensation update to realize the calculation of the zero-crossing prediction point is: E1. The total time T from when the calculation instruction is generated to when the manual operation is completed is introduced into the variation model for compensation; E2. Based on the operation b33, find the node value on the X-axis at the zero point, and compensate the time T according to the node value at the zero point, that is, the node value on the X-axis at the zero-crossing prediction point is marked as X. j ; E3, after inputting the real-time collected data into the change model in chronological order, the zero-crossing prediction point X j When the AC signal passes through zero, the corresponding device's switch disconnection operation is completed; The zero-crossing prediction point in E2 is located at the node value X on the X-axis j The calculation formula is: X j =u+m-T; u+m is the node value that generates the zero crossing point and is located on the X-axis, and T is the total time from the generation of the instruction to the manual completion of the operation.

2. According to claim 1, a manual zero-crossing fast disconnection control system is characterized in that: The data acquisition module performs the following processing operations after data acquisition: A1. Use voltage meters and current meters to collect real-time data of the operation of each device in the substation area and realize data transmission through wireless communication; A2. Classify the data according to the type of equipment, and sort the data according to the time of collection to form a basic data set; A3. While collecting data, the location information of the equipment in the substation area and the rate of signal transmission are recorded.

3. According to claim 1, a manual zero-crossing rapid disconnection control system is characterized in that: The formula for calculating the total time from the generation of the instruction to the manual completion of the operation in D3 is: T=t1+t2; Where T is the total time from the command generation to the manual completion of the operation, t1 is the transmission time between the signal receiving and sending point of the device and the signal receiving and sending point of the data interaction center, and t2 is the time for the personnel to respond and complete the processing operation after the response, and is a fixed constant value; The calculation formula of t1 is: t1=L / V; L is the distance between the device signal receiving and sending point and the data exchange center signal receiving and sending point, and V is the transmission rate from the data exchange center to the device signal receiving and sending point.

4. According to claim 1, a manual zero-crossing rapid disconnection control system is characterized in that: The zero-crossing detection module generates a corresponding recovery prediction point based on the zero-crossing prediction point as follows: S1, after finding the corresponding zero-crossing prediction point, the node value X located on the X-axis at the zero-crossing prediction point j Increase the buffer threshold mark to t3; S2, that is, the node value of the restored prediction point located on the X-axis is (X j +t3, then the AC signal satisfies the node value (X j +t3), the transmission completes the instruction operation of closing the device control switch.

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