Relay protection device setting calculation, setting and checking method and system

Abstract

This invention provides a method and system for calculating, setting, and verifying the settings of a relay protection device. A host computer monitors changes in the electrical parameters of a load model, acquires the electrical parameter information and first setpoint data for multiple load nodes in the load model, calculates second setpoint data, and if the first and second setpoint data differ, the host computer generates and issues a setting operation task. A handheld operating terminal receives the task, locates and connects to a matching first relay protection device according to the steps, and sends the second setpoint data; non-designated devices refuse to execute the task. The first relay protection device receives and solidifies the second setpoint data, and then feeds back the solidified result to the handheld operating terminal. The handheld operating terminal compares the feedback data with the issued data; if they match, the verification is successful; otherwise, it is abnormal. This invention solves the problem in related technologies where the setting process lacks effective closed-loop control, making it difficult to detect problems in a timely manner and posing significant safety hazards.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and more specifically, to a method and system for calculating, setting, and verifying the settings of a relay protection device. Background Technology

[0002] In related technologies, relay protection devices are an important component of power systems, playing a crucial role in protecting the safe and economical operation of the power system and preventing the escalation of accidents. Relay protection settings are the core of the correct operation of relay protection devices; errors in these settings can easily lead to malfunctions or failures to operate, posing a threat to the safe operation of the power system.

[0003] The correct operation settings for relay protection require three main steps: setting calculation, setting solidification, and setting verification. Currently, setting calculation is performed manually or by an independent setting calculation system; setting solidification is done manually by personnel at the relay protection device end, or by manually modifying the settings of each device in a remote backend system and then transmitting the solidified settings via communication; setting verification generally relies on manual comparison and verification of the settings before and after modification.

[0004] In existing technologies, the workflow coordination of the three stages—set value calculation, set value fixing, and set value verification—relies primarily on management systems, lacking effective closed-loop technical means for control and a system-level automated end-to-end implementation method. During operation, issues such as failure to perform set value adjustments, missed or incorrect adjustments, and set value mismatches after changes in system operation modes frequently occur. Furthermore, these problems are difficult to detect after they occur, creating safety hazards.

[0005] In response to the lack of effective closed-loop technical means to control the setting and adjustment process in related technologies, which makes it difficult to detect problems in a timely manner and poses significant safety hazards, no effective technical solution has yet been proposed. Summary of the Invention

[0006] This invention provides a method and system for calculating, setting, and verifying the settings of a relay protection device, which at least solves the problem in related technologies that the setting process lacks effective closed-loop technical means for control, making it difficult to detect problems in a timely manner and posing significant safety hazards.

[0007] In a first aspect, embodiments of the present invention provide a method for calculating, setting, and verifying the settings of a relay protection device, comprising: a host computer monitoring changes in the electrical parameter information of a load model associated with a first relay protection device, acquiring the electrical parameter information and first setting data of multiple load nodes of the load model; the host computer calculating second setting data of multiple load nodes based on the electrical parameter information, comparing the second setting data with the corresponding first setting data, and determining that the second setting data is the changed setting data if the first setting data and the second setting data are different; based on the electrical parameter information and the changed setting data, the host computer generating a setting operation task and setting data for each setting operation step, and issuing an operation ticket;

[0008] The handheld operating terminal receives the set value operation task and the set value data of each set value operation step from the operation ticket issued by the host computer. Based on the load node position of the current set value operation step, it finds the matching first relay protection device, initiates the communication connection with the first relay protection device, and sends the set value data of the current set value operation step to the first relay protection device to instruct the first relay protection device to solidify the changed set value data. If it is not the first relay protection device, it refuses to execute the current set value operation step. The first relay protection device receives the changed setting data, performs setting adjustment and solidification operations, and feeds back the solidified setting data to the handheld operation terminal. The handheld operation terminal receives the solidified setting data sent by the first relay protection device and compares it with the setting data of the current setting operation step. If they are the same, the verification is passed; otherwise, the verification fails and the setting adjustment process is abnormal.

[0009] In conjunction with the first aspect, in one possible implementation, if the verification is successful, the method further includes: sending a notification message to the host computer to notify the host computer that the setting operation task has been completed, and instructing the host computer to update the saved setting data to the solidified setting data.

[0010] In conjunction with the first aspect, in one possible implementation, the change in the electrical parameter information includes at least one of the following: a change in the number of load nodes in the load model, load characteristics, or load node electrical capacity.

[0011] In conjunction with the first aspect, in one possible implementation, the method for calculating, setting, and verifying the settings of a relay protection device includes the following steps: Step S402: Begin; Step S404: The host computer performs setpoint calculation and setpoint change analysis; Step S406: The host computer generates the fixed-value operation task and the fixed-value data for each operation step; Step S408: The handheld operating terminal receives the setpoint operation task and setpoint data; Step S410: Determine the load node and device of the first relay protection device. If it is not the first relay protection device, proceed to step S412. If it is the first relay protection device, proceed to step S414. Step S412: The handheld operating terminal refuses to execute the setting operation step; Step S414: The handheld operating terminal sends out a set value; Step S416: The first relay protection device performs setting; Step S418: The first relay protection device executes the set value fixing; Step S420: The first relay protection device sends the set value; Step S422: The handheld operating terminal performs on-site verification of the set value; Step S424: Determine whether the fixed value operation task has ended. If it has not ended, return to step S410. If it has ended, execute step S426. Step S426: End.

[0012] In conjunction with the first aspect, in one possible implementation, when the result of the setpoint change analysis in step S404 is a change, the setpoint operation task is triggered, and the process proceeds to step S406.

[0013] In conjunction with the first aspect, in one possible implementation, the operation ticket issued by the host computer contains multiple fixed-value operation tasks, and the method further includes the following execution steps: Step 501: The host computer calculates the setpoint and performs a setpoint change analysis; Step 502: The host computer determines whether to generate a fixed-value operation task based on the fixed-value change analysis results, and sends the fixed-value data of the relevant operation steps to the handheld operation terminal; Step 503: The handheld operating terminal finds the matching target first relay protection device based on the load node location of the current setting operation step, initiates the communication connection with the first relay protection device, and sends the calculated setting value of the current operation step to the first relay protection device. If it is not the target first relay protection device, the setting operation step is refused to be executed to prevent incorrect setting. Step 504: The first relay protection device receives the setting information and performs setting adjustment and fixing operations, and feeds back the fixed setting information to the handheld operation terminal; Step 505: The handheld operating terminal receives the solidified setting information from the first relay protection device and performs on-site verification with the setting data of the current operating step; Step 506: After the handheld operating terminal completes the current fixed-value operation step, it will repeatedly execute steps 502-505 according to the remaining fixed-value operation tasks in the operation ticket.

[0014] In conjunction with the first aspect, in one possible implementation, after the first relay protection device completes the setting and fixing operation, the handheld operating terminal summons the fixed setting information of the first relay protection device.

[0015] In a second aspect, embodiments of the present invention provide a system for setting, adjusting, and verifying a relay protection device, used to implement the setting, adjusting, and verifying method in the first aspect. The system includes: The host computer is used to monitor changes in the electrical parameters of the load model associated with the first relay protection device, acquire the electrical parameters and first setpoint data of multiple load nodes in the load model; calculate the second setpoint data of multiple load nodes based on the electrical parameters, compare the second setpoint data with the corresponding first setpoint data, and determine the second setpoint data as the changed setpoint data if the first setpoint data and the second setpoint data are different; based on the electrical parameters and the changed setpoint data, generate the setpoint operation task and the setpoint data for each setpoint operation step, and issue the operation ticket. The handheld operating terminal is used to receive the setpoint operation tasks and setpoint data of each setpoint operation step from the operation ticket issued by the host computer; to find the matching first relay protection device according to the load node position of the current setpoint operation step; to initiate a communication connection with the first relay protection device; to send the setpoint data of the current setpoint operation step to the first relay protection device to instruct the first relay protection device to solidify the changed setpoint data; and to refuse to execute the current setpoint operation step if it is not the first relay protection device. It is also used to receive the solidified setpoint data sent by the first relay protection device and compare it with the setpoint data of the current setpoint operation step. The first relay protection device is used to receive the changed setting data, perform setting and fixing operations, and feed back the fixed setting data to the handheld operation terminal.

[0016] This invention receives a setting operation task generated from changed setting data and the changed setting data sent by a host computer; sends the changed setting data to a first relay protection device according to the setting operation task, instructing the first relay protection device to solidify the changed setting data; receives the solidified setting data sent by the first relay protection device and performs setting value verification on the solidified setting data; that is, this invention provides a closed-loop technical solution for the distribution, solidification, and verification of setting data. By adopting the above technical solution, the problem of lacking effective closed-loop control in the setting value adjustment process in related technologies, making it difficult to detect problems in a timely manner, and posing significant safety hazards, is solved; a system-level automated full-process setting value data adjustment method is formed, reducing safety hazards. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a flowchart illustrating an optional method for calculating, setting, and verifying the settings of a relay protection device according to an embodiment of the present invention. Figure 2 This is a flowchart illustrating another optional method for calculating, setting, and verifying the settings of a relay protection device according to an embodiment of the present invention. Figure 3 This is a structural block diagram of an optional relay protection device setting calculation, setting and verification system according to an embodiment of the present invention. Detailed Implementation

[0018] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] This invention provides a method for calculating, setting, and verifying the settings of a relay protection device, comprising the following steps: In step S202, the host computer detects a change in the electrical parameter information of the load model associated with the first relay protection device, and acquires the electrical parameter information and the first setpoint data of multiple load nodes of the load model; the host computer calculates the second setpoint data of the multiple load nodes based on the electrical parameter information, compares the second setpoint data with the corresponding first setpoint data, and determines that the second setpoint data is the changed setpoint data if the first setpoint data and the second setpoint data are different; based on the electrical parameter information and the changed setpoint data, the host computer generates a setpoint operation task and the setpoint data for each setpoint operation step, and issues an operation ticket; Step S204: The handheld operating terminal receives the set value operation task and the set value data of each set value operation step from the operation ticket issued by the host computer. Based on the load node position of the current set value operation step, it finds the matching first relay protection device, starts the communication connection with the first relay protection device, and sends the set value data of the current set value operation step to the first relay protection device to instruct the first relay protection device to solidify the changed set value data. If it is not the first relay protection device, it refuses to execute the current set value operation step. In step S206, the first relay protection device receives the changed setting data, performs setting adjustment and solidification operations, and feeds back the solidified setting data to the handheld operation terminal; the handheld operation terminal receives the solidified setting data sent by the first relay protection device and compares it with the setting data of the current setting operation step. If they are the same, the verification is passed; otherwise, the verification fails and the setting adjustment process is abnormal.

[0021] Through the above steps, the system receives a setting operation task generated from the changed setting data and the changed setting data sent by the host computer; it then sends the changed setting data to the first relay protection device according to the setting operation task, instructing the first relay protection device to solidify the changed setting data; finally, it receives the solidified setting data sent by the first relay protection device and performs setting verification on the solidified setting data. In other words, this embodiment of the invention provides a closed-loop technical solution for the distribution, solidification, and verification of setting data. By adopting the above technical solution, the problem of lacking effective closed-loop control in the setting process in related technologies, making it difficult to detect problems in a timely manner, and posing significant safety hazards, is solved. A system-level automated, full-process setting data setting method is formed, reducing safety hazards.

[0022] Optionally, in an exemplary embodiment, sending the changed setting data to the first relay protection device according to the setting operation task can be achieved by: obtaining first device information sent by the first relay protection device; determining whether the first device information is the same as the second device information carried in the setting operation task; and sending the changed setting data to the first relay protection device if the first device information is the same as the second device information.

[0023] Before sending the changed setting data to the first relay protection device, the first relay protection device needs to be verified to prevent incorrect setting information. Therefore, it is necessary to first obtain the first device information sent by the first relay protection device and compare it with the second device information carried in the setting operation task to confirm whether they are the same. If the first device information and the second device information are the same, and it is determined that the address information of the first relay protection device is correct, then the changed setting data is sent to the first relay protection device.

[0024] In an exemplary embodiment, based on the above steps: after determining whether the first device information is the same as the second device information carried in the setting operation task, the method further includes: issuing a first prompt message when the first device information is different from the second device information, wherein the first prompt message is used to indicate that the first device information is different from the second device information; establishing communication with the second relay protection device, and sending the changed setting data to the second relay protection device according to the setting operation task to instruct the second relay protection device to solidify the changed setting data.

[0025] If the information of the first device and the information of the second device are found to be different, it indicates that the first relay protection device is not the relay protection device that needs to be set in this current setting. Therefore, a first prompt message is issued to save the comparison result. The handheld operating terminal then establishes communication with the second relay protection device, which is any relay protection device other than the first relay protection device. The handheld operating terminal will continue to search for the relay protection device to be set in until the correct relay protection device is found. This instructs the relay protection device to solidify the changed setting data and send the solidified setting data to the handheld operating terminal, so that the handheld operating terminal can verify the setting data against the changed setting data.

[0026] In an exemplary embodiment, sending the changed setting data to a first relay protection device according to the setting operation task to instruct the first relay protection device to solidify the changed setting data can be implemented in the following way: sending the changed setting data to the first relay protection device according to the setting operation task to instruct the first relay protection device to determine whether the first structural information of the changed setting data is the same as the second structural information of the setting data of the first relay protection device, and solidifying the changed setting data if the first structural information is the same as the second structural information.

[0027] After sending the changed setting data to the first relay protection device, the first relay protection device is instructed to determine whether the first structural information of the changed setting data is the same as the second structural information of the original setting data of the first relay protection device, so as to further confirm whether the first relay protection device is the relay protection device corresponding to the changed setting data; if the first structural information and the second structural information are determined to be the same, the first relay protection device solidifies the changed setting data.

[0028] In an exemplary embodiment, receiving the fixed setting data sent by the first relay protection device and performing setting value verification on the fixed setting data can be achieved through the following steps: specifically, determining whether the changed setting data is the same as the fixed setting data; if the changed setting data is the same as the fixed setting data, issuing a second prompt message, wherein the second prompt message is used to indicate that the changed setting data has passed the verification; if the changed setting data is different from the fixed setting data, issuing a third prompt message, wherein the third prompt message is used to indicate that the changed setting data has failed the verification.

[0029] After the setpoint is fixed, a setpoint verification process is required to prevent deviations in the setpoint data caused by certain factors during the entire setpoint setting process. Therefore, the handheld operating terminal also needs to receive the fixed setpoint data sent by the first relay protection device and compare it with the previously received changed setpoint data. If the changed setpoint data is the same as the fixed setpoint data, the verification is confirmed to be successful, and a second prompt message is issued to record the verification process. If the changed setpoint data is different from the fixed setpoint data, the verification is confirmed to be unsuccessful, the setpoint setting operation process is abnormal, and a third prompt message is issued to record the abnormal setpoint setting process.

[0030] In an exemplary embodiment, based on the above steps, after issuing a second prompt message when the changed setpoint data is the same as the fixed setpoint data, the method further includes: sending a notification message to the host computer to notify the host computer that the setpoint operation task has been completed, and instructing the host computer to update the saved setpoint data to the fixed setpoint data.

[0031] If the fixed value data is confirmed to be the same as the changed fixed value data, the handheld terminal also needs to send a notification message to the host computer to inform the host computer that the fixed value operation task has been completed and to instruct the host computer to update the saved fixed value data to the fixed value data, thus completing the entire fixed value adjustment process.

[0032] Obviously, the embodiments described above are merely some embodiments of the present invention, and not all embodiments. To better understand the above-described device setup method, the process is explained below with reference to embodiments, but this is not intended to limit the technical solutions of the embodiments of the present invention. Specifically: Example 1 The following combination Figure 1 The scheme of Example 1 will be described below. Figure 1 This is a flowchart illustrating an optional method for calculating, setting, and verifying the settings of a relay protection device according to an embodiment of this application. Figure 1 As shown, the specific steps include: Step 301: Device 1 (equivalent to the first relay protection device mentioned above) sends the operating parameter information and set value data (equivalent to the first set value data mentioned above) of Device 1 to Device 3 (equivalent to the host computer mentioned above). Step 302: Device 3 performs a setpoint calculation based on the operating parameter information and setpoint data; Step 303: Device 3 performs a setpoint change analysis based on the calculated setpoint data (equivalent to the second setpoint data mentioned above) and the received setpoint data from Device 1; Step 304: When the device 3 confirms that the set value data has changed, it generates a set value operation task and sends the set value operation task and the calculated set value data to the device 2 (equivalent to the handheld operation terminal mentioned above). Step 305: Device 2 performs a set value operation task to find a matching device 1; Step 306: Device 2 sends the calculated setpoint data to Device 1; Step 307: Device 1 receives the calculated fixed value data, performs fixed value solidification, and sends the solidified fixed value data to Device 2; Step 308: Device 2 performs a value verification between the calculated value data and the solidified value data; and sends the verification result to Device 3; Step 309: Device 3 confirms the received verification result.

[0033] It should be noted that the above-mentioned device 1 is generally a relay protection device, which mainly completes the receiving of calculated settings, performs setting and setting solidification operations, and transmits the solidified setting information (equivalent to the above-mentioned solidified setting data) via communication.

[0034] The aforementioned device 2 is a handheld operating terminal capable of performing fixed-value operation tasks, equivalent to the aforementioned handheld operating terminal. This handheld operating terminal can receive the fixed-value operation tasks and fixed-value data from the operation ticket issued by device 3, match the target device 1 according to the fixed-value operation tasks in the current operation ticket, and prevent accidental communication connections to similar devices 1 on other load nodes; after determining the target device 1 to be communicated with, it initiates a communication connection with it and sends the fixed-value information of the fixed-value operation step (equivalent to the aforementioned changed fixed-value data) to device 1. After device 1 completes the fixed-value adjustment and solidification operation, device 2 summons the solidified fixed-value information of device 1, performs on-site automatic verification between the summoned fixed-value information and the fixed-value data of the fixed-value operation step, and prompts the verification result.

[0035] The aforementioned device 3 is a software system or device with operation ticket issuance function, equivalent to the aforementioned host computer. This system or device maintains the load model of the power distribution system. When one or more situations occur, such as the increase or decrease of load nodes, changes in load characteristics (e.g., increase of inductive load), or changes in the power consumption capacity of load nodes, device 3 calculates the device settings of each load node under the new load model (equivalent to the aforementioned second setting data) based on the electrical parameters of the changed load model. It compares whether the newly calculated setting of each load node has changed with the original setting (equivalent to the aforementioned first setting data) and completes the setting change analysis. If there is a change, it triggers the setting operation task and sends the setting operation task and the calculated new setting data information to device 2. After completing the operation task, device 2 receives the setting verification result sent by it and updates the setting information by communicating with the current setting data of device 1.

[0036] Through the above steps, devices 1, 2, and 3 automatically complete the entire process of setting value calculation, setting value solidification, and setting value verification during the setting value adjustment process through communication between the devices, forming a closed-loop workflow. By adopting the above solution, the problem of the lack of effective closed-loop technical means for control of the setting value adjustment process in related technologies, the difficulty in timely detection of problems, and the large safety hazards are solved. A system-level automated setting value data adjustment method has been formed, reducing safety hazards.

[0037] Example 2 The following combination Figure 2 The scheme of Example 2 will be described below. Figure 2 This is a flowchart illustrating another optional method for calculating, adjusting, and verifying fixed values ​​according to an embodiment of this application, as shown below. Figure 2 As shown, the specific steps include: Step S402: Begin; Step S404: Equipment 3 performs setpoint calculation and setpoint change analysis; Step S406: Device 3 generates the setpoint operation task and the setpoint data for each operation step; Step S408: Device 2 receives the setpoint operation task and setpoint data; Step S410: Determine the load node and device of Equipment 1. If it is not Equipment 1, proceed to step S412. If it is Equipment 1, proceed to step S414. Step S412: Device 2 refuses to execute the setpoint adjustment operation step; Step S414: Device 2 issues a set value; Step S416: Equipment 1 performs setpoint adjustment; Step S418: Equipment 1 performs fixed-value curing; Step S420: Device 1 performs setpoint transmission; Step S422: Equipment 2 performs on-site calibration of setpoints; Step S424: Determine whether the fixed value operation task has ended. If it has not ended, return to step S410. If it has ended, execute step S426. Step S426: End.

[0038] Through the above steps, device 3 performs setpoint calculation and setpoint change analysis. After determining the setpoint change, it generates and sends out the setpoint operation task and setpoint data for each operation step. Device 2 receives the setpoint operation task and setpoint data. It searches for a load node to match device 1. If it is not device 1, device 2 refuses to execute the setpoint adjustment operation step. If it is device 1, device 2 sends the setpoint data to device 1. Device 1 performs the setpoint adjustment operation. Device 1 performs the setpoint solidification operation. After completing the setpoint solidification, device 1 sends the solidified setpoint data to device 2. Device 2 performs on-site setpoint verification. Based on the verification result, it determines whether the setpoint operation task is completed. If it is not completed, it returns to search for device 1 again. If it is completed, the process ends. By adopting the above technical solution, the problem of lack of effective closed-loop technical means for control of the setpoint adjustment process in related technologies, making it difficult to detect problems in a timely manner and posing significant safety hazards is solved. A system-level automated full-process setpoint data adjustment method is formed, reducing safety hazards.

[0039] Example 3 The operation ticket issued by device 3 may include multiple fixed-value operation tasks. Therefore, the above embodiment can also be implemented according to the following optional steps: Step 501: Equipment 3 calculates the setpoint and performs a setpoint variation analysis; Step 502: Device 3 determines whether to generate a fixed-value operation task based on the fixed-value change analysis results, and sends the fixed-value data of the relevant operation steps to Device 2; Step 503: Device 2 searches for a matching target device 1 based on the load node location of the current setpoint operation step, initiates a communication connection with device 1, and sends the calculated setpoint of the current operation step to device 1. If the target device is not device 1, the setpoint operation step is refused to be executed to prevent incorrect setting. Step 504: Device 1 receives the setpoint information and performs setpoint adjustment and solidification operations, and feeds back the solidified setpoint information to Device 2; Step 505: Device 2 receives the solidified setpoint information from Device 1 and verifies it locally with the setpoint data of the current operation step; Step 506: After completing the current setpoint operation step, device 2 will repeatedly execute steps 502 to 505 according to the remaining setpoint operation tasks in the operation ticket.

[0040] By repeatedly executing the above steps, a system-level automated method for setting value data throughout the entire process is formed. This solves the problem in related technologies where there is a lack of effective closed-loop technical means to control the setting value setting process, making it difficult to detect problems in a timely manner and posing significant safety risks; thus reducing safety risks.

[0041] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0042] This embodiment also provides a system for calculating, setting, and verifying the settings of a relay protection device. Figure 3 This is an optional system architecture block diagram according to an embodiment of the present invention. The device includes: The host computer 52 is used to monitor changes in the electrical parameter information of the load model associated with the first relay protection device, acquire the electrical parameter information and first setpoint data of multiple load nodes of the load model; the host computer calculates second setpoint data of the multiple load nodes based on the electrical parameter information, compares the second setpoint data with the corresponding first setpoint data, and determines that the second setpoint data is the changed setpoint data if the first setpoint data and the second setpoint data are different; based on the electrical parameter information and the changed setpoint data, the host computer generates a setpoint operation task and setpoint data for each setpoint operation step, and issues an operation ticket; The operation terminal 54 is used to receive the set value operation task and the set value data of each set value operation step in the operation ticket issued by the host computer, find the matching first relay protection device according to the load node position of the current set value operation step, start the communication connection with the first relay protection device, and send the set value data of the current set value operation step to the first relay protection device to instruct the first relay protection device to solidify the changed set value data. If it is not the first relay protection device, the current set value operation step will not be executed. The first relay protection device 56 is used to receive the changed setting data, perform setting and fixing operations, and feed back the fixed setting data to the handheld operation terminal. The handheld operation terminal receives the fixed setting data sent by the first relay protection device and compares it with the setting data of the current setting operation step. If they are the same, the verification is passed; otherwise, the verification fails and the setting process is abnormal.

[0043] The above-described device receives a setting operation task generated from the changed setting data and the changed setting data sent by the host computer; it then sends the changed setting data to the first relay protection device according to the setting operation task, instructing the first relay protection device to solidify the changed setting data; it receives the solidified setting data sent by the first relay protection device and performs setting verification on the solidified setting data; that is, this embodiment of the invention provides a closed-loop technical solution for the distribution, solidification, and verification of setting data. By adopting the above technical solution, the problem of lacking effective closed-loop control in the setting process in related technologies, making it difficult to detect problems in a timely manner, and posing significant safety hazards is solved; a system-level automated full-process setting data setting method is formed, reducing safety hazards.

[0044] In an exemplary embodiment, the first relay protection device 56 is further configured to acquire second device information carried in the setting operation task sent by the handheld operating terminal; determine whether the first device information of the first relay protection device is the same as the second device information; and if the first device information is the same as the second device information, receive the changed setting data sent by the handheld operating terminal.

[0045] After receiving the setting operation task, the first relay protection device 56 obtains the second device information carried in the setting operation task, and determines whether the first device information of the first relay protection device 56 is the same as the second device information in order to verify the relay protection device and prevent incorrect setting information; if the first device information is the same as the second device information, it receives the changed setting data sent by the handheld operation terminal 54.

[0046] In an exemplary embodiment, the first relay protection device 56 is further configured to send a first instruction message to the handheld operating terminal when the first device information and the second device information are different, so as to instruct the handheld operating terminal to issue a first prompt message, establish communication with the second relay protection device, and send the changed setting data to the second relay protection device according to the setting operation task, so as to instruct the second relay protection device to solidify the changed setting data, wherein the first prompt message is used to indicate that the first device information and the second device information are different.

[0047] If it is determined that the information of the first device is different from that of the second device, it indicates that the first relay protection device 56 is not the relay protection device corresponding to the changed setting data. Therefore, a first instruction message is sent to the handheld operating terminal 54 to instruct the handheld operating terminal 54 to issue a first prompt message to save the comparison result. The handheld operating terminal 54 is also instructed to establish communication with the second relay protection device, which is any relay protection device other than the first relay protection device 56. That is, the handheld operating terminal 54 will continue to search for the relay protection device to be set until the correct relay protection device is found. The handheld operating terminal is then instructed to solidify the changed setting data and send the solidified setting data to the handheld operating terminal, so that the handheld operating terminal can perform a setting verification between the solidified setting data and the changed setting data.

[0048] In an exemplary embodiment, the first relay protection device 56 is further configured to receive the changed setpoint data sent by a handheld operating terminal; determine whether the first structural information of the changed setpoint data is the same as the second structural information of the setpoint data of the first relay protection device; and, if the first structural information is the same as the second structural information, solidify the changed setpoint data.

[0049] After receiving the changed setting data sent by the handheld operating terminal 54, the first relay protection device 56 determines whether the first structural information of the received changed setting data is the same as the second structural information of the original setting data of the first relay protection device 56, so as to further confirm whether the first relay protection device is the relay protection device corresponding to the changed setting data; if it is determined that the first structural information is the same as the second structural information, the first relay protection device 56 solidifies the changed setting data.

[0050] In one exemplary embodiment, the handheld operating terminal 54 is further configured to determine whether the changed setpoint data is the same as the fixed setpoint data; if the changed setpoint data is the same as the fixed setpoint data, issue a second prompt message, wherein the second prompt message is used to indicate that the changed setpoint data has passed the verification; if the changed setpoint data is different from the fixed setpoint data, issue a third prompt message, wherein the third prompt message is used to indicate that the changed setpoint data has failed the verification.

[0051] After the setpoint is fixed, a setpoint verification process is required to prevent deviations in the setpoint data caused by certain factors during the entire setpoint setting process. Therefore, the handheld operating terminal 54 also needs to receive the fixed setpoint data sent by the first relay protection device 56 and compare it with the previously received changed setpoint data. If the changed setpoint data is the same as the fixed setpoint data, the verification is confirmed to be successful, and a second prompt message is issued to record the verification process. If the changed setpoint data is different from the fixed setpoint data, the verification is confirmed to be unsuccessful, the setpoint setting operation process is abnormal, and a third prompt message is issued to record the abnormal setpoint setting process.

[0052] In an exemplary embodiment, the handheld operating terminal 54 is further configured to, after issuing a second prompt message when the changed setpoint data is the same as the fixed setpoint data, send a notification message to the host computer to notify the host computer that the setpoint operation task has been completed, and instruct the host computer to update the saved setpoint data to the fixed setpoint data.

[0053] If the fixed value data is confirmed to be the same as the changed fixed value data, the handheld operating terminal 54 also needs to send a notification message to the host computer 52 to notify the host computer 52 that the fixed value operation task has been completed and instruct the host computer 52 to update the saved fixed value data to the fixed value data, thus completing the entire fixed value adjustment process.

[0054] In an exemplary embodiment, the first relay protection device 56 is further configured to send a second instruction message to the handheld operating terminal when the first structural information is different from the second structural information, so as to instruct the handheld operating terminal to issue a fourth prompt message, and establish communication with the second relay protection device, and send the changed set value data to the second relay protection device according to the set value operation task, so as to instruct the second relay protection device to solidify the changed set value data, wherein the fourth prompt message is used to indicate that the first structural information is different from the second structural information.

[0055] If the first relay protection device 56 determines that the first structural information and the second structural information are different, it sends a second instruction message to the handheld operating terminal 54 to instruct the handheld operating terminal to issue a fourth prompt message to save the comparison result. It also instructs the handheld operating terminal 54 to re-establish communication with the second relay protection device, which is any relay protection device other than the first relay protection device 56. That is, the handheld operating terminal will continue to search for the relay protection device to be set until the correct relay protection device is found. The handheld operating terminal is instructed to solidify the changed set value data and send the solidified set value data to the handheld operating terminal, so that the handheld operating terminal can perform a set value verification between the solidified set value data and the changed set value data.

[0056] In an exemplary embodiment, the host computer 52 is further configured to, when the electrical parameter information of the load model of the first relay protection device changes, acquire the electrical parameter information of the load model and the first setpoint data of a plurality of load nodes of the load model, wherein the change in the electrical parameter information includes at least one of the following: a change in the number of load nodes of the load model, a change in the load characteristics of the load model, or a change in the power consumption capacity of the load nodes of the load model; calculate the second setpoint data of the plurality of load nodes of the load model based on the electrical parameter information; determine whether the first setpoint data and the second setpoint data of the plurality of load nodes are the same; if the first setpoint data and the second setpoint data are not the same, determine the second setpoint data of the load nodes as the changed setpoint data, and generate a setpoint operation task based on the electrical parameter information and the changed setpoint data.

[0057] When the electrical parameters of the load model of the first relay protection device 56 change, i.e., the first relay protection device 56 undergoes at least one of the following changes: the number of load nodes in the load model increases or decreases, the load characteristics of the load model change (e.g., an increase in inductive load), or a change in the electrical capacity of the load nodes in the load model, it is determined that the first relay protection device may require setting adjustment. Therefore, the host computer 52 acquires the electrical parameters of the load model of the first relay protection device 56 and the first setting data of multiple load nodes in the load model, and calculates the second setting data of multiple load nodes in the load model based on the electrical parameters. It then determines whether the first and second setting data of the multiple load nodes are the same. If the first and second setting data are different, the second setting data is determined as the changed setting data, and a setting operation task is generated based on the acquired electrical parameters and the changed setting data. This is to perform the setting adjustment process of the first relay protection device 56.

[0058] It is obvious to those skilled in the art that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby storing them in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those presented herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0059] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for calculating, setting, and verifying the settings of a relay protection device, characterized in that, include: The host computer detects changes in the electrical parameters of the load model associated with the first relay protection device and acquires the electrical parameters and the first setpoint data of multiple load nodes in the load model. The host computer calculates the second setpoint data for multiple load nodes based on electrical parameter information, compares the second setpoint data with the corresponding first setpoint data, and determines that the second setpoint data is the changed setpoint data if the first setpoint data and the second setpoint data are different. Based on the electrical parameter information and the changed setpoint data, the host computer generates the setpoint operation task and the setpoint data for each setpoint operation step, and issues the operation ticket. The handheld operating terminal receives the set value operation task and the set value data of each set value operation step from the operation ticket issued by the host computer. Based on the load node position of the current set value operation step, it finds the matching first relay protection device, initiates the communication connection with the first relay protection device, and sends the set value data of the current set value operation step to the first relay protection device to instruct the first relay protection device to solidify the changed set value data. If it is not the first relay protection device, it refuses to execute the current set value operation step. The first relay protection device receives the changed setting data, performs setting adjustment and fixing operations, and feeds back the fixed setting data to the handheld operation terminal. The handheld operating terminal receives the solidified setting data sent by the first relay protection device and compares it with the setting data of the current setting operation step. If they are the same, the verification is successful; otherwise, the verification fails and the setting process is abnormal.

2. The method according to claim 1, characterized in that, If the verification is successful, the method further includes: Send a notification message to the host computer to inform it that the setting operation task has been completed and instruct the host computer to update the saved setting data to the fixed setting data.

3. The method according to claim 1, characterized in that, The changes in the electrical parameter information include at least one of the following: changes in the number of load nodes in the load model, load characteristics, or load node power consumption.

4. The method according to claim 1, characterized in that, The execution steps include the following: Step S402: Begin; Step S404: The host computer performs setpoint calculation and setpoint change analysis; Step S406: The host computer generates the fixed-value operation task and the fixed-value data for each operation step; Step S408: The handheld operating terminal receives the setpoint operation task and setpoint data; Step S410: Determine the load node and device of the first relay protection device. If it is not the first relay protection device, proceed to step S412. If it is the first relay protection device, proceed to step S414. Step S412: The handheld operating terminal refuses to execute the setting operation step; Step S414: The handheld operating terminal sends out a set value; Step S416: The first relay protection device performs setting; Step S418: The first relay protection device executes the set value fixing; Step S420: The first relay protection device sends the set value; Step S422: The handheld operating terminal performs on-site verification of the set value; Step S424: Determine whether the fixed value operation task has ended. If it has not ended, return to step S410. If it has ended, execute step S426. Step S426: End.

5. The method according to claim 4, characterized in that, If the result of the setpoint change analysis in step S404 is a change, the setpoint operation task is triggered, and the process proceeds to step S406.

6. The method according to claim 1, characterized in that, The operation ticket issued by the host computer contains multiple fixed-value operation tasks. The method also includes the following execution steps: Step 501: The host computer calculates the setpoint and performs a setpoint change analysis; Step 502: The host computer determines whether to generate a fixed-value operation task based on the fixed-value change analysis results, and sends the fixed-value data of the relevant operation steps to the handheld operation terminal; Step 503: The handheld operating terminal finds the matching target first relay protection device based on the load node location of the current setting operation step, initiates the communication connection with the first relay protection device, and sends the calculated setting value of the current operation step to the first relay protection device. If it is not the target first relay protection device, the setting operation step is refused to be executed to prevent incorrect setting. Step 504: The first relay protection device receives the setting information and performs setting adjustment and fixing operations, and feeds back the fixed setting information to the handheld operation terminal; Step 505: The handheld operating terminal receives the solidified setting information from the first relay protection device and performs on-site verification with the setting data of the current operating step; Step 506: After the handheld operating terminal completes the current fixed-value operation step, it will repeatedly execute steps 502-505 according to the remaining fixed-value operation tasks in the operation ticket.

7. The method according to claim 1, characterized in that, After the first relay protection device completes the setting and fixing operations, the handheld operating terminal summons the fixed setting information of the first relay protection device.

8. A system for calculating, setting, and verifying the setting value of a relay protection device, used to implement the method described in any one of claims 1 to 7, characterized in that, include: The host computer is used to monitor changes in the electrical parameters of the load model associated with the first relay protection device, acquire the electrical parameters and first setpoint data of multiple load nodes in the load model; calculate the second setpoint data of multiple load nodes based on the electrical parameters, compare the second setpoint data with the corresponding first setpoint data, and determine the second setpoint data as the changed setpoint data if the first setpoint data and the second setpoint data are different; based on the electrical parameters and the changed setpoint data, generate the setpoint operation task and the setpoint data for each setpoint operation step, and issue the operation ticket. The handheld operating terminal is used to receive the set value operation tasks and set value data of each set value operation step in the operation ticket issued by the host computer. It searches for the matching first relay protection device according to the load node position of the current set value operation step, starts the communication connection with the first relay protection device, and sends the set value data of the current set value operation step to the first relay protection device to instruct the first relay protection device to fix the changed set value data. If it is not the first relay protection device, it refuses to execute the current set value operation step. And for receiving the solidified setpoint data sent by the first relay protection device and comparing it with the setpoint data of the current setpoint operation step; The first relay protection device is used to receive the changed setting data, perform setting and fixing operations, and feed back the fixed setting data to the handheld operation terminal.

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