System for replacing protection device without power cut

Abstract

The invention relates to the technical field of relay protection devices, and discloses a system for replacing a protection device without power outage, the system comprises a control end and a transition end, the control end comprises an early warning unit, and the transition end comprises a replacement unit without power outage and a monitoring unit; the uninterruptible replacement unit is used as a transition device when a new relay protection device is adopted to perform uninterruptible replacement on an original relay protection device in a target power grid; the monitoring unit is used for monitoring the non-power-cut replacement unit to obtain monitoring data; and the early warning unit is used for carrying out abnormal early warning according to the monitoring data. Therefore, automatic monitoring and early warning of the system are achieved, dependence on manual operation and judgment is effectively reduced, problems in the replacement process can be found in time, timeliness and accuracy of problem finding are improved, and stable operation of the power system is powerfully guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of relay protection devices, and in particular to a system for replacing protection devices without power outage. Background Art

[0002] Relay protection device is an important equipment used in power system. Its main function is to detect faults or abnormal conditions in the power system and protect the power system by issuing alarm signals or directly cutting off the faulty parts. When the power components (such as generators and lines) in the power system fail or operate abnormally, the relay protection device can respond quickly, judge the nature and scope of the fault by measuring the parameter changes of the power system, and take corresponding measures, such as issuing warning signals or tripping circuit breakers, to ensure the stable operation of the power system. In order to avoid the impact on users' lives due to power outages when updating the relay protection device, the relay protection device of the substation is replaced using non-stop power replacement technology. However, the current non-stop power replacement technology relies on manual operation and judgment throughout the process, and problems that occur during the replacement process cannot be discovered in time, which has an impact on the stable operation of the power system. Summary of the invention

[0003] Based on this, it is necessary to propose a non-stop power replacement protection device system in response to the current non-stop power replacement technology in the existing technology, which relies on manual operation and judgment throughout the process. Problems arising during the replacement process cannot be discovered in a timely manner, which has an impact on ensuring the stable operation of the power system.

[0004] In order to solve the above problems, a non-stop power replacement protection device system is provided, the system comprises: a control end and a transition end, the control end comprises: an early warning unit, the transition end comprises: a non-stop power replacement unit and a monitoring unit;

[0005] The non-stop replacement unit is used as a transition device when a new relay protection device is used to replace an original relay protection device in a target power grid without power outages;

[0006] The monitoring unit is used to monitor the non-stop power replacement unit to obtain monitoring data;

[0007] The early warning unit is used to issue an abnormality early warning based on the monitoring data.

[0008] Furthermore, the control end further comprises: a matching unit;

[0009] The matching unit is used to obtain the basic device data of the original relay protection device, and perform transition end matching according to the device model of the basic device data, wherein the non-stop replacement unit of the matched transition end is used as a transition device when the original relay protection device in the target power grid is replaced without power outages by a new relay protection device.

[0010] Furthermore, the control end further comprises: a scheme determination unit and a scheme execution unit;

[0011] The scheme determination unit is used to obtain the basic data of the original relay protection device, obtain a scheme from a preset scheme library according to the device model in the basic data of the device as an initial scheme, and update the initial scheme according to the characteristic parameters in the basic data of the device to obtain a target scheme;

[0012] The scheme execution unit is used to control the transition end according to the target scheme;

[0013] The monitoring unit is used to monitor the non-stop replacement unit based on the target solution to obtain the monitoring data;

[0014] The early warning unit is used to issue an abnormality early warning based on the target plan and the monitoring data.

[0015] Furthermore, the scheme execution unit is used to: traverse each step in the target scheme, take each traversed step as a target step, control the non-stop replacement unit according to the control data corresponding to the target step in the target scheme, and obtain the monitoring data corresponding to the target step sent by the monitoring unit;

[0016] The early warning unit is used to identify abnormalities according to the target scheme and the monitoring data corresponding to the target step to obtain an identification result. If the identification result is normal, the process jumps to the step of traversing each step in the target scheme, and continues to execute each traversed step as a step of the target step until the steps in the target scheme are traversed. If the identification result is abnormal, an abnormality early warning is issued according to the target scheme and the monitoring data corresponding to the target step.

[0017] Furthermore, the control terminal further comprises: a reminder unit;

[0018] The reminder unit is used to play a preset normal reminder voice when the recognition result is normal, and to play a preset abnormal reminder voice when the recognition result is abnormal.

[0019] Furthermore, the control end further comprises: an analysis unit;

[0020] The analysis unit is used to perform analysis based on the recognition result, the target solution, and the monitoring data corresponding to the target step to obtain an analysis result.

[0021] Further, the monitoring unit includes: a current sensor and a voltage sensor;

[0022] The current sensor is used to monitor the current data in the non-stop power replacement unit as the first data in the monitoring data;

[0023] The voltage sensor is used to monitor the voltage data in the non-stop replacement unit as the second data in the monitoring data.

[0024] Furthermore, the transition end further comprises: an intelligent control unit and a connection execution unit;

[0025] The intelligent control unit is used to control the connection execution unit according to the device model of the original relay protection device, so as to realize the non-stop replacement of the original relay protection device in the target power grid by using the new relay protection device and using the non-stop replacement unit as the transition device.

[0026] Furthermore, the transition end further comprises: a switching switch;

[0027] The intelligent control unit is also used to obtain a switching signal corresponding to the switching switch, and disconnect the circuit of the non-power-off replacement unit based on the switching signal.

[0028] Further, the transition end further includes a first encryption unit and a first decryption unit, and the control end further includes: a second encryption unit and a second decryption unit;

[0029] The first decryption unit is used to decrypt the data encrypted by the second encryption unit;

[0030] The second decryption unit is used to decrypt the data encrypted by the first encryption unit.

[0031] The system of the present application includes: a control end and a transition end, the control end includes: an early warning unit, the transition end includes: a non-stop power replacement unit and a monitoring unit; the non-stop power replacement unit is used as a transition device when a new relay protection device is used to replace the original relay protection device in the target power grid without power outage; the monitoring unit is used to monitor the non-stop power replacement unit to obtain monitoring data; the early warning unit is used to issue an abnormal early warning based on the monitoring data. Thus, the automatic monitoring and early warning of the system are realized, which effectively reduces the dependence on manual operation and judgment, can timely discover problems in the replacement process, improves the timeliness and accuracy of problem discovery, and effectively guarantees the stable operation of the power system. Using the non-stop power replacement unit of the transition end as a transition device ensures that there is no need to shut down the power when replacing the relay protection device, greatly reduces the impact on the user's life, and improves the continuity and reliability of power supply. The coordinated work of the monitoring unit and the early warning unit can control the status of the non-stop power replacement unit in real time, issue abnormal early warnings in time, facilitate relevant personnel to quickly take countermeasures, avoid the expansion of problems, and further enhance the safety and stability of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] in:

[0034] Figure 1 An application environment diagram of a system for replacing a protection device without power outage in one embodiment;

[0035] Figure 2 It is a structural block diagram of a system for replacing a protection device without power outage in one embodiment. DETAILED DESCRIPTION

[0036] 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 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.

[0037] The non-stop power supply replacement protection device system provided by the embodiment of the present invention can be applied in the following aspects: Figure 1In an application environment, the application environment includes: a system for replacing protection devices without power outage, a target power grid 80, a new relay protection device 4, and an original relay protection device 3 is provided in the target power grid 80. The original relay protection device 3 is a relay protection device that needs to be replaced. The new relay protection device 4 is a relay protection device that is to be replaced in the target power grid 80. The system for replacing protection devices without power outage includes: a control terminal 1 and a transition terminal 2. The control terminal 1 controls the operation of the transition terminal 2 to realize the non-stop replacement of the original relay protection device 3 in the target power grid 80 with the new relay protection device 4.

[0038] Among them, the non-stop power replacement unit 21 of the transition end 2 is used as a transition device when the original relay protection device 3 in the target power grid 80 is replaced without power outage by using the new relay protection device 4. The monitoring unit 22 of the non-stop power replacement unit 21 of the transition end 2 is used to monitor the non-stop power replacement unit 21 and obtain monitoring data. The early warning unit 11 of the control end 1 is used to issue an abnormal early warning based on the monitoring data. The automatic monitoring and early warning of the system are realized, which effectively reduces the dependence on manual operation and judgment, can timely discover problems in the replacement process, improves the timeliness and accuracy of problem discovery, and effectively guarantees the stable operation of the power system. The non-stop power replacement unit 21 of the transition end 2 is used as a transition device to ensure that there is no need to shut down the power when replacing the relay protection device, greatly reducing the impact on the user's life and improving the continuity and reliability of power supply. The coordinated work of the monitoring unit 22 and the early warning unit 11 can control the status of the non-stop power replacement unit 21 in real time, issue abnormal early warnings in time, facilitate relevant personnel to quickly take countermeasures, avoid the expansion of problems, and further enhance the safety and stability of the power system.

[0039] Optionally, the control end 1 and the transition end 2 are integrated into one device.

[0040] Optionally, the control end 1 and the transition end 2 are independently provided in one device, and in this case, the control end 1 may be a client.

[0041] The client can be, but is not limited to, various personal computers, laptops, smartphones, tablets, and portable wearable devices.

[0042] It is understandable that the application environment may also include a server, which is in communication connection with the client.

[0043] Among them, the client can be but is not limited to industrial computers, various personal computers, laptops, smart phones, tablets and portable wearable devices.

[0044] The server can be implemented with an independent server or a server cluster consisting of multiple servers.

[0045] The specific work flow of replacing the original relay protection device 3 (also referred to as the original protection device) in the target power grid 80 without power outage includes: inputting the characteristic parameters of the original relay protection device 3 into the transition device; wherein the original relay protection device 3 is a relay protection device in the substation, and the characteristic parameters at least include the device setting value and the protection setting value of the original relay protection device 3; sequentially connecting the second current loop of the original relay protection device 3 to the transition device in a non-stop manner; short-circuiting the ends of the second current loop close to the transformer, and disconnecting the end of the second current loop close to the original relay protection device 3; after sequentially connecting the third current loop in the new relay protection device 4 (also referred to as the new protection device) to the second current loop, the second current loop of the transition device is disconnected. Through the setting of the transition device, the second current loop of the original relay protection device 3 is sequentially connected to the transition device in a non-power-off manner, and then the end of the second current loop close to the transformer is short-circuited, and at the same time, the end of the second current loop close to the original relay protection device 3 is disconnected, and then the transition device is connected to the control system, so that the original relay protection device 3 is replaced with the transition device without power outage and load transfer, thereby saving manpower, material and financial costs and improving the service life of the protection device. In the embodiment of the present application, the transition device is connected to the control system, so that the remote control of the transition device can be realized, and the iterative upgrade of the original relay protection device 3 is realized. Through the setting of the embodiment of the present application, a method for replacing the protection device for iterative upgrading of the original relay protection device 3 is provided without power outage, cost saving, and remote control of the protection device.

[0046] The method of sequentially connecting the second current circuit of the original relay protection device 3 to the transition device without power outage specifically includes the following steps: sequentially connecting the second current circuit of the original relay protection device 3 to the transition device using a cable connector, wherein one end of the cable connector is connected to the first terminal block interface of the transition device via the first current circuit, and the other end of the cable connector is provided with a contact piece, and the contact piece is connected to the second current circuit of the original relay protection device 3.

[0047] The method of sequentially connecting the second current loop of the original relay protection device 3 to the transition device in a non-stop manner specifically includes the following steps: sequentially connecting the second current loop of the original relay protection device 3 to the transition device using a clamp current transformer, wherein one end of the clamp current transformer is connected to the first terminal block interface of the transition device through a first current loop, the other end of the clamp current transformer is provided with a clamp connection part, and the second current loop passes through the mutual inductance zone of the clamp connection part.

[0048] Before the step of sequentially connecting the second current loop of the original relay protection device 3 to the transition device in a non-stop manner, the step includes: short-circuiting the measurement and control current loop of the original relay protection device 3 on the terminal box or switch cabinet side.

[0049] Before the step of sequentially connecting the second current loop of the original relay protection device 3 to the transition device in a non-stop manner, the step also includes: disconnecting the bus voltage air switch of the original relay protection device 3 and transferring the bus voltage to the transition device.

[0050] After the step of sequentially connecting the second current loop of the original relay protection device 3 to the transition device without power outage, the step also includes: checking the analog quantity sampling menus of the original relay protection device 3 and the transition device respectively to check whether the loop operation is normal.

[0051] After the step of short-circuiting one end of the second current loop close to the transformer and disconnecting one end of the second current loop close to the original relay protection device 3, the step also includes: sequentially connecting other external connections of the original relay protection device 3 to the transition device in a non-power-off manner.

[0052] The present invention is described in detail below through specific embodiments.

[0053] See also Figure 2 As shown, Figure 2 A non-stop power replacement protection device system is provided in an embodiment of the present invention, the system comprises: a control end 1 and a transition end 2, the control end 1 comprises: an early warning unit 11, the transition end 2 comprises: a non-stop power replacement unit 21 and a monitoring unit 22;

[0054] The non-stop replacement unit 21 is used as a transition device when the original relay protection device 3 in the target power grid 80 is replaced with a new relay protection device 4 without power outage;

[0055] The monitoring unit 22 is used to monitor the non-stop power replacement unit 21 to obtain monitoring data;

[0056] The early warning unit 11 is used to issue an abnormality early warning according to the monitoring data.

[0057] This embodiment realizes the automatic monitoring and early warning of the system, effectively reduces the dependence on manual operation and judgment, can promptly discover problems in the replacement process, improves the timeliness and accuracy of problem discovery, and effectively ensures the stable operation of the power system. The use of the non-stop replacement unit 21 at the transition end 2 as a transition device ensures that there is no need to shut down the power when replacing the relay protection device, greatly reduces the impact on the user's life, and improves the continuity and reliability of power supply. The coordinated work of the monitoring unit 22 and the early warning unit 11 can control the status of the non-stop replacement unit 21 in real time, and issue abnormal early warnings in time, so that relevant personnel can quickly take countermeasures to avoid the expansion of problems, and further enhance the safety and stability of the power system.

[0058] The non-stop replacement unit 21 is used as a transition device when the original relay protection device 3 in the substation of the target power grid 80 is replaced with a new relay protection device 4 without stopping power.

[0059] The monitoring unit 22 at least monitors the current and voltage changes of the non-stop power replacement unit 21, and uses the monitored data as the monitoring data. The monitoring unit 22 at least includes a current sensor and a voltage sensor.

[0060] Optionally, the early warning unit 11 is a software program in the controller of the control terminal 1 .

[0061] Optionally, the early warning unit 11 is used to use a table lookup method to determine whether there is an abnormality based on the monitoring data, and if the result of the determination is that there is an abnormality, generate an abnormality early warning signal.

[0062] Optionally, the early warning unit 11 is used to use a threshold method to determine whether there is an abnormality based on the monitoring data, and if the result of the determination is that there is an abnormality, generate an abnormality early warning signal.

[0063] Optionally, the early warning unit 11 is used to input the monitoring data into a pre-trained anomaly prediction model for classification prediction, and take the classification category corresponding to the vector element with the largest value in the predicted vector as the recognition result; if the recognition result is abnormal, it means that there is an abnormality, and an abnormal warning signal is generated; if the recognition result is normal, it means that there is no abnormality, and no abnormal reminder is required.

[0064] The pre-trained anomaly prediction model is a pre-trained classification model. The model structure and model training method of the pre-trained anomaly prediction model can be selected from the prior art and will not be described in detail here.

[0065] Optionally, the control terminal 1 controls the abnormal warning signal to give abnormal reminders through sound and light. In this case, the control terminal 1 is provided with a sound player (for abnormal reminders through sound) and / or an indicator light (for abnormal reminders through lights of different colors).

[0066] Optionally, the control terminal 1 sends an abnormal warning signal to the transition terminal 2, and the transition terminal 2 controls the abnormal warning signal through sound and light to give abnormal reminders. It can be understood that at this time, the control terminal 1 is provided with a sound player and / or an indicator light.

[0067] Optionally, the control terminal 1 sends the abnormal warning signal to other applications or devices, and issues abnormal reminders through other applications.

[0068] In one embodiment, the control terminal 1 further includes: a matching unit;

[0069] The matching unit is used to obtain the basic device data of the original relay protection device 3, and match the transition end 2 according to the device model of the basic device data, wherein the non-stop replacement unit 21 of the matched transition end 2 is used as a transition device when the original relay protection device 3 in the target power grid 80 is replaced without power outages by using a new relay protection device 4.

[0070] This embodiment automatically determines the transition end 2 based on the basic device data of the original relay protection device 3 through the matching unit, thereby realizing the non-stop replacement of the original relay protection device 3 in the target power grid 80 using the accurate transition end 2, avoiding the non-stop replacement using the wrong transition end 2, thereby further improving the continuity and reliability of power supply.

[0071] Specifically, the matching unit is a software program in the controller of the control terminal 1.

[0072] Among them, the basic device data of the original relay protection device 3 can be obtained by the user through the input component of the control terminal 1, the basic device data of the original relay protection device 3 can be obtained from a preset storage space, and the basic device data of the original relay protection device 3 can also be obtained from a third-party application.

[0073] The input component can be a touch screen or a combination of multiple keys.

[0074] According to the basic data of the device, the transition end 2 is matched by using a table lookup method.

[0075] Among them, the matching transition end 2's said non-stop replacement unit 21 is used as a transition device when a new relay protection device 4 is used to replace the original relay protection device 3 in the target power grid 80 without power outages, thereby avoiding the erroneous transition end 2 attempting to replace the original relay protection device 3 in the target power grid 80 without power outages.

[0076] The basic data of the device include: device model and characteristic parameters.

[0077] The device model refers to the model of the original relay protection device 3.

[0078] Characteristic parameters also include parameters such as pressure plate and circuit breaker status, and work start procedures and work documents need to be processed according to the actual situation on site.

[0079] Optionally, performing transition end 2 matching according to the device model of the device basic data may be replaced by performing transition end 2 matching according to the device model of the device basic data and characteristic parameters of the device basic data.

[0080] In one embodiment, the control terminal 1 further includes: a solution determination unit 13 and a solution execution unit 14;

[0081] The scheme determination unit 13 is used to obtain the basic data of the original relay protection device 3, obtain a scheme from a preset scheme library according to the device model in the basic data of the device as an initial scheme, and update the initial scheme according to the characteristic parameters in the basic data of the device to obtain a target scheme;

[0082] The scheme execution unit 14 is used to control the transition end 2 according to the target scheme;

[0083] The monitoring unit 22 is used to monitor the non-stop replacement unit 21 based on the target solution to obtain the monitoring data;

[0084] The early warning unit 11 is used to issue an abnormality early warning based on the target solution and the monitoring data.

[0085] In this embodiment, a solution is obtained from a preset solution library according to the device model in the basic data of the device, as an initial solution. According to the characteristic parameters in the basic data of the device, the initial solution is updated to obtain a target solution, and a personalized replacement solution is determined based on the basic data. This method can significantly improve the pertinence and applicability of the replacement solution, so that the replacement operation is more in line with the actual situation of the specific device, and effectively reduce the probability of failure risk and unexpected situation caused by mismatching solutions. By continuously updating the target solution, it is possible to adapt to the dynamic changes of the basic data of the device in real time, ensure that the solution is always in the optimal state, and improve the efficiency and quality of the replacement work. At the same time, the personalized solution can better utilize the performance characteristics of the device, realize the optimal allocation of resources, and extend the service life and stability of the device. Moreover, accurate solution formulation can reduce unnecessary operation steps and time waste, improve the fluency of the entire replacement process, and bring convenience to relevant staff. In addition, it can also provide a reliable basis and guidance for subsequent device maintenance and management, facilitate timely discovery of potential problems and early intervention, further ensure the safe and reliable operation of the device, and lay a solid foundation for the stable and continuous operation of related systems or networks.

[0086] Specifically, the solution determination unit 13 and the solution execution unit 14 are both software programs in the controller of the control terminal 1 .

[0087] Among them, the basic device data of the original relay protection device 3 can be obtained by the user through the input component of the control terminal 1, the basic device data of the original relay protection device 3 can be obtained from a preset storage space, and the basic device data of the original relay protection device 3 can also be obtained from a third-party application.

[0088] Optionally, a table lookup method is used to obtain a solution from a preset solution library according to the device model in the basic data of the device as an initial solution.

[0089] Optionally, the initial solution is replaced and updated according to the characteristic parameters in the basic data of the device, and the updated initial solution is used as the target solution.

[0090] Optionally, target parameters are determined based on characteristic parameters in the basic data of the device, and the initial solution is replaced and updated based on the target parameters, and the updated initial solution is used as the target solution.

[0091] Optionally, the characteristic parameters in the basic data of the device are input into a pre-trained parameter prediction model for classification prediction, the maximum value of the vector obtained from the prediction corresponding to the specified parameter is used as the hit value of the specified parameter, and the classification category corresponding to the hit value is used as the value of the specified parameter in the target parameter. The specified parameter is any parameter of the parameters corresponding to the initial solution.

[0092] The pre-trained parameter prediction model is a pre-trained multi-classification model. The model structure and model training method of the pre-trained parameter prediction model can be selected from the existing technology and will not be described in detail here.

[0093] The scheme execution unit 14 is used to send a control instruction to the transition end 2 according to the target scheme, and control the transition end 2 according to the control instruction.

[0094] It can be understood that in another embodiment of the present application, the scheme execution unit 14 is not required to control the transition end 2 according to the target scheme. It is only necessary to display the target scheme to remind the staff of the specific scheme and steps for non-stop replacement through the display, thereby assisting the staff to perform the non-stop replacement operation.

[0095] The monitoring unit 22 is used to determine a monitoring time point based on the target solution, monitor the non-stop replacement unit 21 according to the monitoring time point, and use the monitored data as the monitoring data.

[0096] Optionally, the early warning unit 11 is used to determine whether there is an abnormality based on the monitoring data by using a table lookup method based on the table corresponding to the target solution, and generate an abnormality early warning signal if the result of the determination is that there is an abnormality.

[0097] Optionally, the early warning unit 11 is used to adopt a threshold value corresponding to the target solution to determine whether there is an abnormality based on the monitoring data, and if the result of the determination is that there is an abnormality, generate an abnormality early warning signal.

[0098] Optionally, the early warning unit 11 is used to splice the monitoring data and the target plan and input them into a pre-trained anomaly prediction model for classification prediction, and take the classification category corresponding to the vector element with the largest value in the predicted vector as the recognition result; if the recognition result means that there is an anomaly, an abnormal warning signal is generated.

[0099] In one embodiment, the scheme execution unit 14 is used to: traverse each step in the target scheme, take each traversed step as a target step, control the non-stop replacement unit 21 according to the control data corresponding to the target step in the target scheme, and obtain the monitoring data corresponding to the target step sent by the monitoring unit 22;

[0100] The early warning unit 11 is used to identify abnormalities according to the target scheme and the monitoring data corresponding to the target step to obtain an identification result. If the identification result is normal, it jumps to the traversal of each step in the target scheme, and continues to execute each traversed step as a step of the target step until the steps in the target scheme are traversed. If the identification result is abnormal, it issues an abnormal early warning according to the target scheme and the monitoring data corresponding to the target step.

[0101] This embodiment obtains monitoring data for each step, and performs abnormal warning based on the monitoring data of each step, so that comprehensive monitoring and real-time feedback of the entire process can be achieved, and possible subtle abnormal situations can be discovered in time, which greatly improves the timeliness and accuracy of problem discovery. It can issue an early warning when the abnormality just appears, avoiding small problems from turning into major failures, and effectively reducing potential risks and losses. Early warning based on accurate monitoring data helps relevant personnel to quickly locate the problem link, take accurate countermeasures, and improve the efficiency of problem solving. It can also provide important data support for subsequent process optimization and improvement. Through the analysis of abnormal situations, each step can be adjusted and improved in a targeted manner to improve the quality and stability of the overall process. At the same time, this real-time abnormal warning mechanism can enhance the sense of security and trust of relevant personnel, making them more at ease and assured during the operation process. In addition, the long-term accumulated monitoring data and abnormal warning information can form a valuable database, provide reference and reference for similar projects or scenarios, and promote the continuous development and innovation of technology.

[0102] Specifically, each step in the target scheme is traversed, and each traversed step is taken as a target step, that is, each step in the target scheme is traversed in turn, and each traversed step is taken as a target step, and then the step of controlling the non-power-off replacement unit 21 according to the control data corresponding to the target step in the target scheme is executed.

[0103] The non-stop replacement unit 21 is controlled according to the control data corresponding to the target step in the target scheme, that is, the control data corresponding to the target step in the target scheme is input into the non-stop replacement unit 21, so that the non-stop replacement unit 21 can simulate the original relay protection device 3 in the target power grid 80.

[0104] The step of identifying anomalies according to the target scheme and the monitoring data corresponding to the target step to obtain an identification result includes: splicing the target scheme and the monitoring data corresponding to the target step and inputting them into a pre-trained anomaly prediction model for classification prediction, and taking the classification category corresponding to the vector element with the largest value in the predicted vector as the identification result.

[0105] The jump to the traversal of each step in the target scheme, and each traversed step is continued to be executed as the step of the target step, that is, the next step of the current target step is traversed, and the traversed step is used as the new target step, and then the step of controlling the non-power-off replacement unit 21 according to the control data corresponding to the target step in the target scheme is executed according to the new target step.

[0106] The step of issuing abnormal warning according to the target scheme and the monitoring data corresponding to the target step, that is, generating warning information according to the monitoring data corresponding to the target step, and issuing abnormal warning according to the warning method and warning information corresponding to the target scheme.

[0107] The warning information can be specific information, or the corresponding relationship between the color and duration of the indicator light, or an audio identifier. The audio identifier can be data that uniquely identifies a piece of audio, such as an audio name or an audio ID.

[0108] In one embodiment, the control terminal 1 further includes: a reminder unit;

[0109] The reminder unit is used to play a preset normal reminder voice when the recognition result is normal, and to play a preset abnormal reminder voice when the recognition result is abnormal.

[0110] This embodiment uses a reminder unit to play a preset normal reminder voice when the recognition result is normal, and to play a preset abnormal reminder voice when the recognition result is abnormal, so as to remind the staff of progress in time.

[0111] Specifically, the reminder unit may adopt a sound playing component (such as a speaker).

[0112] In one embodiment, the control terminal 1 further includes: an analysis unit;

[0113] The analysis unit is used to perform analysis based on the recognition result, the target solution, and the monitoring data corresponding to the target step to obtain an analysis result.

[0114] In this embodiment, the analysis unit analyzes the monitoring data corresponding to the identification result, the target scheme, and the target step to obtain the analysis result, which enables the staff to have a deeper understanding of the actual implementation of each link in the non-stop power replacement scheme and the expected difference, so as to make timely adjustments and optimizations. Accurate analysis results can help staff accurately evaluate the feasibility and effectiveness of the scheme, and provide a reliable reference for subsequent similar work. Through the comprehensive analysis of these data, potential problems or risk points can be discovered in advance, so that the staff can make preparations in advance to further ensure the smooth progress of the non-stop power replacement work. It can also improve the staff's ability to control the entire replacement process and enhance the scientificity and rationality of decision-making. At the same time, it helps to improve the professional skills and analytical ability of the staff and promote their continuous accumulation of experience. Moreover, this detailed analysis result is conducive to information sharing and communication and collaboration between different departments or teams, making the entire workflow more coordinated and efficient. In addition, the long-term accumulated analysis results can also provide strong data support for improving and innovating non-stop power replacement technology, and promote the continuous development and progress of related technologies.

[0115] Specifically, the analysis unit can be implemented as a software program in the controller of the control terminal 1.

[0116] The identification result, the target solution, and the monitoring data corresponding to the target step are input into a preset statistical analysis engine for analysis, and the statistical analysis engine outputs the analysis result.

[0117] In one embodiment, the monitoring unit 22 includes: a current sensor and a voltage sensor;

[0118] The current sensor is used to monitor the current data in the non-stop power replacement unit 21 as the first data in the monitoring data;

[0119] The voltage sensor is used to monitor the voltage data in the non-stop replacement unit 21 as the second data in the monitoring data.

[0120] This embodiment monitors the current data in the non-stop power replacement unit 21 and the voltage data in the non-stop power replacement unit 21, so that the power operation status of the non-stop power replacement unit 21 can be grasped in real time, ensuring that it works within a safe current and voltage range, effectively avoiding equipment damage or failure due to abnormal current or voltage. Potential power fluctuations or instability can be discovered in time, and countermeasures can be taken in advance to ensure the smooth progress of the replacement work.

[0121] The position of the current sensor can be determined according to monitoring requirements and the structure of the non-stop replacement unit 21, which will not be elaborated here.

[0122] The location of the voltage sensor can be determined based on monitoring requirements and the structure of the non-stop replacement unit 21, which will not be elaborated here.

[0123] In one embodiment, the transition end 2 further includes: an intelligent control unit and a connection execution unit;

[0124] The intelligent control unit is used to control the connection execution unit according to the device model of the original relay protection device 3, so as to realize the use of the new relay protection device 4 and use the non-stop replacement unit 21 as the transition device to replace the original relay protection device 3 in the target power grid 80 without power outage.

[0125] This embodiment can improve the degree of automation of the replacement operation and reduce the errors and risks caused by manual intervention. It can ensure that the new relay protection device 4 is accurately matched with the original device model, ensuring the smooth and stable replacement process. The use of intelligent control to achieve precise operation can effectively reduce the impact on the normal operation of the power grid and maintain the continuity and stability of power supply. By using the non-stop replacement unit 21 as a transition device, the power outage time and scope can be minimized to the greatest extent, and the user's power experience can be improved. Intelligent control can also improve the efficiency of the replacement work and shorten the time required for replacement. It can monitor and adjust the entire replacement process in real time, and enhance the flexibility and adaptability of the replacement work. At the same time, it helps to accumulate replacement experience data for different device models and provide better guidance for subsequent similar replacement work. Moreover, this intelligent control method is conducive to improving the level of intelligence in power grid management and promoting the continuous development and progress of power grid technology.

[0126] The intelligent control unit is a software program in the controller of control terminal 1.

[0127] Optionally, the connection execution unit includes a cable connector and a first driver unit. The first driver unit is used to drive the cable connector to work. The first driver unit is set according to the structure of the cable connector. The second current loop of the original relay protection device 3 is sequentially connected to the transition device using a cable connector.

[0128] Optionally, the connection execution unit includes a clamp current transformer and a second driver unit. The second driver unit is used to drive the clamp current transformer to work. The second driver unit is set according to the structure of the clamp current transformer. The second current loop of the original relay protection device 3 is sequentially connected to the transition device using a clamp current transformer.

[0129] In one embodiment, the transition end 2 further includes: a switching switch;

[0130] The intelligent control unit is further used to obtain a switching signal corresponding to the switching switch, and disconnect the circuit of the non-stop replacement unit 21 based on the switching signal.

[0131] This embodiment switches by switching the switch to achieve precise control of the circuit disconnection operation, ensuring that the switch is performed at the right time to avoid misoperation. It can respond to the switching signal in a timely manner, quickly and effectively disconnect the circuit, and ensure the safety and stability of the system. By obtaining the switching signal and performing corresponding actions, the coordination and linkage of the entire system can be improved. It helps to prevent failures or abnormal conditions caused by the failure to disconnect the circuit in time and reduce potential risks. This precise control method is conducive to optimizing the operating logic and process of the system and improving the overall performance. It can also facilitate subsequent maintenance and repair work and clarify the circuit status. At the same time, the intelligent acquisition and processing of switching signals reflects the intelligence and automation level of the system, reducing the tediousness and uncertainty of manual operation. Moreover, this is conducive to improving the system's adaptability to different working conditions and ensuring that the system can operate reliably under various circumstances.

[0132] Specifically, the switching switch adopts a mechanical switch.

[0133] In one embodiment, the transition end 2 further includes a first encryption unit and a first decryption unit, and the control end 1 further includes: a second encryption unit and a second decryption unit;

[0134] The first decryption unit is used to decrypt the data encrypted by the second encryption unit;

[0135] The second decryption unit is used to decrypt the data encrypted by the first encryption unit.

[0136] The transition end 2 and the control end 1 of this embodiment realize encrypted transmission and avoid signal connection, thereby further improving the continuity and reliability of power supply.

[0137] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0138] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A system for replacing a protection device without power outage, characterized in that: The system comprises: a control end and a transition end, wherein the control end comprises: an early warning unit, and the transition end comprises: a non-stop power replacement unit and a monitoring unit; The non-stop replacement unit is used as a transition device when a new relay protection device is used to replace an original relay protection device in a target power grid without power outages; The monitoring unit is used to monitor the non-stop power replacement unit to obtain monitoring data; The early warning unit is used to issue an abnormality early warning based on the monitoring data.

2. The non-stop power supply replacement protection device system according to claim 1, characterized in that: The control end also includes: a matching unit; The matching unit is used to obtain the basic device data of the original relay protection device, and perform transition end matching according to the device model of the basic device data, wherein the non-stop replacement unit of the matched transition end is used as a transition device when the original relay protection device in the target power grid is replaced without power outages by a new relay protection device.

3. The non-stop power supply replacement protection device system according to claim 1, characterized in that: The control end also includes: a scheme determination unit and a scheme execution unit; The scheme determination unit is used to obtain the basic data of the original relay protection device, obtain a scheme from a preset scheme library according to the device model in the basic data of the device as an initial scheme, and update the initial scheme according to the characteristic parameters in the basic data of the device to obtain a target scheme; The scheme execution unit is used to control the transition end according to the target scheme; The monitoring unit is used to monitor the non-stop replacement unit based on the target solution to obtain the monitoring data; The early warning unit is used to issue an abnormality early warning based on the target plan and the monitoring data.

4. The non-stop power supply replacement protection device system according to claim 3, characterized in that: The scheme execution unit is used to: traverse each step in the target scheme, take each traversed step as the target step, control the non-stop replacement unit according to the control data corresponding to the target step in the target scheme, and obtain the monitoring data corresponding to the target step sent by the monitoring unit; The early warning unit is used to identify abnormalities according to the target scheme and the monitoring data corresponding to the target step to obtain an identification result. If the identification result is normal, the process jumps to the step of traversing each step in the target scheme, and continues to execute each traversed step as a step of the target step until the steps in the target scheme are traversed. If the identification result is abnormal, an abnormality early warning is issued according to the target scheme and the monitoring data corresponding to the target step.

5. The non-stop power supply replacement protection device system according to claim 4, characterized in that: The control end also includes: a reminder unit; The reminder unit is used to play a preset normal reminder voice when the recognition result is normal, and to play a preset abnormal reminder voice when the recognition result is abnormal.

6. The non-stop power supply replacement protection device system according to claim 4, characterized in that: The control end also includes: an analysis unit; The analysis unit is used to perform analysis based on the recognition result, the target solution, and the monitoring data corresponding to the target step to obtain an analysis result.

7. The non-stop power supply replacement protection device system according to claim 1, characterized in that: The monitoring unit includes: a current sensor and a voltage sensor; The current sensor is used to monitor the current data in the non-stop power replacement unit as the first data in the monitoring data; The voltage sensor is used to monitor the voltage data in the non-stop replacement unit as the second data in the monitoring data.

8. The non-stop power supply replacement protection device system according to claim 1, characterized in that: The transition end also includes: an intelligent control unit and a connection execution unit; The intelligent control unit is used to control the connection execution unit according to the device model of the original relay protection device, so as to realize the non-stop replacement of the original relay protection device in the target power grid by using the new relay protection device and using the non-stop replacement unit as the transition device.

9. The non-stop power supply replacement protection device system according to claim 8, characterized in that: The transition end also includes: a switching switch; The intelligent control unit is also used to obtain a switching signal corresponding to the switching switch, and disconnect the circuit of the non-power-off replacement unit based on the switching signal.

10. The non-stop power supply replacement protection device system according to claim 1, characterized in that: The transition end further includes a first encryption unit and a first decryption unit, and the control end further includes: a second encryption unit and a second decryption unit; The first decryption unit is used to decrypt the data encrypted by the second encryption unit; The second decryption unit is used to decrypt the data encrypted by the first encryption unit.

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