A maintenance strategy making method and device based on intelligent switch life parameters

Abstract

The application relates to a maintenance strategy making method and device based on intelligent switch life parameters. The application calculates intelligent switch life parameters based on the hardware parameters of the intelligent switch and the state parameters of the intelligent switch in the remote control process; the maintenance strategy is made according to the conditions of the intelligent switch life parameters, including: the maintenance and repair plan is made according to the intelligent switch life parameters; for the intelligent switch in the power system, the maintenance and repair plan is made in the order of L<0, L>P and L=P, wherein L is the intelligent switch life parameter, and P is the life parameter standard of the intelligent switch; the state of the intelligent switch is analyzed according to the intelligent switch life parameters, the corresponding repair scheme is made according to the state of the intelligent switch reflected by the life parameters; the intelligent switch is repaired and maintained according to the maintenance and repair plan and the repair scheme, and the intelligent switch life parameters are reset after the intelligent switch repair is completed. The application improves the maintenance efficiency of a large number of intelligent switches in the power system and reduces the workload.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent switch maintenance, and particularly relates to a maintenance strategy making method and device based on intelligent switch life parameters. BACKGROUND

[0002] As an important equipment in power distribution line, the running state of intelligent switch is affected by many factors, such as switch quality, maintenance, running environment, communication environment, and use frequency. In order to accurately evaluate the life of intelligent switch in distribution network, the influence of random and fuzzy dual uncertainty must be fully considered. The random and fuzzy factors affecting the running state of intelligent switch mainly include: (1) mechanical factor: when the intelligent switch is closed and opened, the collision and friction between the contacts can easily cause the shape change and mechanical wear of the circuit breaker contacts. The mechanical factor directly affects the stability and reliability of the circuit breaker. (2) communication factor: including the training situation of the actual running environment of the remote control switch, and the running state of the communication terminal. (3) switch wear factor: including the remote control breaking frequency of the intelligent switch, the current and current arc time during breaking, etc. At present, the intelligent self-healing mode is vigorously promoted in the operation of distribution network, and the requirements for intelligent switch are continuously improved, especially the remote control opening speed and action accuracy of the intelligent switch are required to be extremely high. With the continuous expansion of the distribution network, the previous maintenance scheme does not focus on the maintenance of the intelligent switch, and it is urgent to develop a scheme for effectively evaluating the life and running state of the intelligent switch as the basis for developing the maintenance scheme. SUMMARY

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a maintenance strategy making method and device based on intelligent switch life parameters.

[0004] In a first aspect, the present application provides a maintenance strategy making method based on intelligent switch life parameters, comprising:

[0005] The intelligent switch life parameters are calculated based on the hardware parameters of the intelligent switch and the state parameters of the intelligent switch during remote control:

[0006]

[0007] Wherein, t is the remote control time length; n is the current remote control frequency of the intelligent switch; N c is the theoretical maximum remote control frequency of the intelligent switch; a t is the remote control time coefficient of the intelligent switch, which is taken in stages with the change of the remote control time length; b c is the remote control result coefficient of the intelligent switch, which is related to the remote control result of the intelligent switch; i t is the load current of the intelligent switch during remote control;

[0008] According to the intelligent switch life parameter, a maintenance strategy is formulated, including:

[0009] According to the intelligent switch life parameter, a maintenance and repair plan is formulated: for the intelligent switch in the power system, the maintenance and repair plan is formulated in the order of L

[0010] According to the maintenance and repair plan, the intelligent switch is repaired and maintained according to the repair scheme, and after the intelligent switch repair is completed, the intelligent switch life parameter is reset.

[0011] Further, the data acquisition system acquires the state parameters of the intelligent switch in the process of remote control in the power system, including: remote control time t; current remote control times n of the intelligent switch, response of the intelligent switch to the remote control result and load current i of the intelligent switch during remote control t .

[0012] Further, an intelligent switch hardware parameter database is constructed in advance, which stores the intelligent switch model, the hardware parameters of the intelligent switch corresponding to the intelligent switch model; the model of each intelligent switch in the power system is obtained, and the hardware parameters of the corresponding intelligent switch are matched in the intelligent switch hardware parameter database according to the model of the intelligent switch, including: the life parameter standard P of the intelligent switch and the theoretical maximum remote control times N of the intelligent switch c .

[0013] Further, after the intelligent switch life parameter in the power system is calculated, the state of the intelligent switch is analyzed according to the intelligent switch life parameter, including:

[0014] For the intelligent switch with L>0, the intelligent switch life parameter L is sorted in descending order; the intelligent switch with switch life parameter less than the life parameter standard P of the intelligent switch and the intelligent switch with switch life parameter greater than the life parameter standard P of the intelligent switch are obtained in batches by using sorting; the intelligent switch with switch life parameter less than the life parameter standard P of the intelligent switch is in normal operation state and can be effectively remotely controlled successfully; the intelligent switch with switch life parameter greater than the life parameter standard P of the intelligent switch is in long-life operation state;

[0015] The intelligent switch with L>0 is in the situation of communication problem;

[0016] The intelligent switch with L<0 is in the state of remote control failure.

[0017] Further, a tThe intelligent switch remote control time coefficient is divided into stages according to the change of the remote control time length, and the expression of the intelligent switch remote control time coefficient is as follows:

[0018]

[0019] Wherein, alpha1, alpha2, alpha3 are constant coefficients, m1, m2, m3 are index coefficients, m3 = m2 + 1 = m1 + 2, t1, t2 are two time length thresholds.

[0020] Further, b c The intelligent switch remote control result coefficient is related to the remote control result of the intelligent switch, and the expression of the intelligent switch remote control result coefficient is as follows:

[0021]

[0022] In a second aspect, the application provides a device for formulating a maintenance strategy based on a life parameter of an intelligent switch, comprising: at least one processing unit, wherein the processing unit, a storage unit and an acquisition unit are interconnected through a bus unit, the storage unit stores a computer program, and the computer program is executed by the processing unit to realize the method for formulating a maintenance strategy based on a life parameter of an intelligent switch.

[0023] In a third aspect, the application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to realize the method for formulating a maintenance strategy based on a life parameter of an intelligent switch.

[0024] The above technical solution provided by the embodiments of the application has the following advantages compared with the prior art:

[0025] The application calculates the intelligent switch life parameter based on the hardware parameter of the intelligent switch and the state parameter of the intelligent switch in the remote control process: formulating the maintenance strategy according to the condition of the intelligent switch life parameter, including: formulating the maintenance repair plan according to the intelligent switch life parameter: for the intelligent switch in the power system, the maintenance repair plan is formulated in the order of L<0, L>P and L=P, wherein L is the intelligent switch life parameter, and P is the life parameter standard of the intelligent switch; analyzing the intelligent switch state according to the intelligent switch life parameter, formulating the corresponding repair scheme according to the intelligent switch state reflected by the life parameter; repairing and maintaining the intelligent switch according to the maintenance repair plan and the repair scheme, and resetting the intelligent switch life parameter after the intelligent switch repair is completed. The application constructs the intelligent switch life parameter which comprehensively considers the mechanical factor, the switch wear factor and the communication factor related to the intelligent switch life based on the remote control response result, the remote control time length, the current remote control times, the load current at the remote control time, the theoretical maximum remote control times of the intelligent switch and the intelligent switch remote control time coefficient, formulates the maintenance strategy including the maintenance repair plan and the repair scheme by using the intelligent switch life parameter, improves the maintenance efficiency of a large number of intelligent switches in the power system, and reduces the workload. BRIEF DESCRIPTION OF DRAWINGS

[0026] The drawings incorporated into the specification and forming a part thereof show embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor under the premise of not paying the creative labor.

[0028] Figure 1 A flowchart of a maintenance strategy formulation method based on the intelligent switch life parameter provided by the embodiment of the present application;

[0029] Figure 2 A flowchart of obtaining the hardware parameter of each intelligent switch in the power system and the state parameter of the intelligent switch in the remote control process provided by the embodiment of the present application;

[0030] Figure 3 A flowchart of formulating the maintenance strategy according to the intelligent switch life parameter provided by the embodiment of the present application;

[0031] Figure 4 A schematic diagram of a maintenance strategy formulation device based on the intelligent switch life parameter provided by the embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0033] It should be noted that in this document, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0034] Embodiment 1

[0035] As shown in Figure 1 , the present application realizes a maintenance strategy making method based on intelligent switch life parameters, and the steps include:

[0036] Obtaining the hardware parameters of each intelligent switch in the power system and the state parameters of the intelligent switch in the remote control process.

[0037] In the specific implementation process, as shown in Figure 2 , a data acquisition system of the intelligent switch is established, and the state parameters of the intelligent switch in the remote control process in the power system are acquired through the data acquisition system, including: remote control time t; current remote control times n of the intelligent switch, response of the intelligent switch to the remote control result and load current i of the intelligent switch in the remote control t . The data acquisition system uploads the state parameters to the server for storage.

[0038] In the specific implementation process, for the intelligent switch in the power system, an intelligent switch hardware parameter database is constructed in advance, and the intelligent switch hardware parameter database stores the intelligent switch model and the hardware parameters of the intelligent switch corresponding to the intelligent switch model through key-value pairs; the model of each intelligent switch in the power system is obtained, and the hardware parameters of the corresponding intelligent switch are matched in the intelligent switch hardware parameter database according to the model of the intelligent switch, including: life parameter standard P of the intelligent switch and theoretical maximum remote control times N c .

[0039] The life parameters of the intelligent switch are calculated based on the hardware parameters of the intelligent switch and the state parameters of the intelligent switch in the remote control process, and the formula is as follows:

[0040]

[0041] Wherein, L is the life parameter, t is the remote control time length; n is the current remote control times of the intelligent switch; N c is the theoretical maximum remote control times of the intelligent switch; a t is the intelligent switch remote control time coefficient, which is taken in stages with the change of remote control time length; b c is the intelligent switch remote control result coefficient, which is related to the remote control result of the intelligent switch; i t The load current of the intelligent switch at the time of remote control;

[0042] In the specific implementation process, the expression of the intelligent switch remote control time coefficient is as follows:

[0043]

[0044] Wherein, α1, α2, α3 are constant coefficients, m1, m2, m3 are exponential coefficients, m3 = m2 + 1 = m1 + 2, t1, t2 are two time length thresholds. In an example, α1, α2, α3 take the value of 1, m1, m2, m3 take the value of 1, 2, 3, t1, t2 take the value of 5 and 10.

[0045] In the specific implementation process, according to the intelligent switch response remote control result to determine the intelligent switch remote control result coefficient, when the intelligent switch responds to the remote control successfully, the intelligent switch remote control result coefficient takes the value of 1; When the intelligent switch fails to respond to the remote control, it is remotely controlled again and responds to the remote control successfully, the intelligent switch remote control result coefficient takes the value of 0; When the intelligent switch fails to respond to the remote control for many times, the intelligent switch remote control result coefficient takes the value of -1, that is, the expression of the intelligent switch remote control result coefficient is as follows:

[0046]

[0047] After calculating the life parameter of the intelligent switch in the power system, a maintenance strategy is formulated according to the life parameter of the intelligent switch, as shown in Figure 3 , including:

[0048] According to the life parameter of the intelligent switch, a maintenance and repair plan is formulated;

[0049] According to the life parameter of the intelligent switch, the state of the intelligent switch is analyzed, and according to the state of the intelligent switch reflected by the life parameter, a corresponding repair scheme is formulated.

[0050] Specifically, for the intelligent switch in the power system, the maintenance and repair plan is formulated in the order of L < 0, L > P and L = P, wherein P is the life parameter standard of the intelligent switch.

[0051] There are four cases of the life parameter of the intelligent switch, and the state of the intelligent switch is analyzed according to the four cases.

[0052] For the intelligent switch with L>0, the intelligent switch life parameter L is sorted in descending order;

[0053] The intelligent switch with the switch life parameter less than the intelligent switch life parameter standard P and the intelligent switch with the switch life parameter greater than the intelligent switch life parameter standard P are obtained by sorting; the intelligent switch with the switch life parameter less than the intelligent switch life parameter standard P is in a normal operation state and can be effectively remotely controlled; the intelligent switch with the switch life parameter greater than the intelligent switch life parameter standard P is in a long-life operation state.

[0054] If the intelligent switch life parameter L=0, it indicates that the current intelligent switch is in a communication problem state, and it is recommended to be checked and maintained by automatic inspection or by the line operation inspection department.

[0055] If the intelligent switch life parameter L<0, it indicates that the current intelligent switch is in a remote control failure state, and is directly listed as the most priority for maintenance.

[0056] According to the state of the intelligent switch reflected by the life parameter, a corresponding maintenance scheme is developed.

[0057] According to the maintenance and repair plan, the intelligent switch is maintained and repaired, and the intelligent switch life parameter is reset after the maintenance and repair of the intelligent switch is completed.

[0058] The application calculates the intelligent switch life parameter based on the hardware parameter of the intelligent switch and the state parameter of the intelligent switch in the remote control process: according to the condition of the intelligent switch life parameter, a maintenance strategy is developed, including: according to the intelligent switch life parameter, a maintenance and repair plan is developed; for the intelligent switch in the power system, the maintenance and repair plan is developed in the order of L<0, L>P and L=P, wherein L is the intelligent switch life parameter, and P is the intelligent switch life parameter standard; according to the intelligent switch life parameter, the state of the intelligent switch is analyzed, and according to the state of the intelligent switch reflected by the life parameter, a corresponding maintenance scheme is developed; according to the maintenance and repair plan, the intelligent switch is maintained and repaired, and the intelligent switch life parameter is reset after the maintenance and repair of the intelligent switch is completed. Based on the remote control response result, the remote control time, the current remote control times, the remote control time load current, the theoretical maximum remote control times of the intelligent switch and the intelligent switch remote control time coefficient, the application constructs the intelligent switch life parameter which can comprehensively represent the mechanical life, the remote control life and the communication life of the intelligent switch, and develops the maintenance strategy including the maintenance and repair plan and the maintenance scheme by using the intelligent switch life parameter, improves the maintenance efficiency of a large number of intelligent switches in the power system, and reduces the workload.

[0059] Embodiment 2

[0060] Referring to Figure 4 As shown in the accompanying drawings, the embodiment of the present application provides a device for formulating maintenance strategy based on intelligent switch life parameter, which comprises: the processing unit, the storage unit, the execution unit and the acquisition unit are interconnected through the bus unit, the storage unit can be used for storing software program, computer executable program and module, such as the software program, computer executable program and module corresponding to the maintenance strategy formulation method based on intelligent switch life parameter in the embodiment of the present application. The processing unit realizes the above-mentioned maintenance strategy formulation method based on intelligent switch life parameter by running the software program, computer executable program and module stored in the storage unit, which comprises:

[0061] The intelligent switch life parameter is calculated based on the hardware parameter of the intelligent switch and the state parameter of the intelligent switch in the remote control process:

[0062]

[0063] Wherein, t is the remote control time length; n is the current remote control times of the intelligent switch; N c is the theoretical maximum remote control times of the intelligent switch; a t is the intelligent switch remote control time coefficient, which is taken in stages with the change of the remote control time length; b c is the intelligent switch remote control result coefficient, which is related to the remote control result of the intelligent switch; i t is the load current of the intelligent switch in the remote control process;

[0064] The maintenance strategy is formulated according to the situation of the intelligent switch life parameter, which comprises:

[0065] The maintenance and repair plan is formulated according to the intelligent switch life parameter: for the intelligent switch in the power system, the maintenance and repair plan is formulated in the order of L

[0066] The intelligent switch is maintained and repaired according to the maintenance and repair plan and the reference repair scheme, and the intelligent switch life parameter is reset after the maintenance and repair of the intelligent switch is completed.

[0067] Of course, the computer program stored in the storage unit in the device for formulating maintenance strategy based on intelligent switch life parameter provided by the embodiment of the present application is not limited to the method operation as described above, but can also perform the related operation in the maintenance strategy formulation method based on intelligent switch life parameter provided by any embodiment of the present application.

[0068] Embodiment 3

[0069] The embodiment of the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed to realize the maintenance strategy making method based on the intelligent switch life parameter, and the method comprises the following steps:

[0070] The intelligent switch life parameter is calculated based on the hardware parameter of the intelligent switch and the state parameter in the remote control process of the intelligent switch.

[0071]

[0072] Wherein, t is the remote control time length; n is the current remote control times of the intelligent switch; N c N is the theoretical maximum remote control times of the intelligent switch; a t a is the remote control time coefficient of the intelligent switch, which is taken in stages with the change of the remote control time length; b c b is the remote control result coefficient of the intelligent switch, which is related to the remote control result of the intelligent switch; i t The load current of the intelligent switch in the remote control process;

[0073] The maintenance strategy is made according to the condition of the intelligent switch life parameter, and the maintenance strategy comprises the following steps:

[0074] The maintenance and repair plan is made according to the intelligent switch life parameter: for the intelligent switch in the power system, the maintenance and repair plan is made according to the sequence of L<0, L>P and L=P, wherein P is the life parameter standard of the intelligent switch; the state of the intelligent switch is analyzed according to the intelligent switch life parameter, and the corresponding repair scheme is made according to the state of the intelligent switch reflected by the life parameter;

[0075] The intelligent switch is repaired and maintained according to the maintenance and repair plan and the repair scheme, and the intelligent switch life parameter is reset after the repair of the intelligent switch is completed.

[0076] The computer readable storage medium provided by the embodiment of the present application is not limited to the method operation as described above, and can also execute the related operation in the maintenance strategy making method based on the intelligent switch life parameter provided by any embodiment of the present application.

[0077] In the embodiments of the present application, it should be understood that the disclosed structure and method can be implemented in other manners. For example, the described embodiments of the structure are merely schematic, and the division of the units is merely a logical function division. For further division during actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between the units can be indirect couplings or communication connections through some interfaces, and electrical, mechanical or other forms.

[0078] The units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments of the present application.

[0079] In addition, each functional unit in the various embodiments of the present application can be integrated in one processing unit, or each unit can exist physically as a separate unit, or two or more units can be integrated in one unit. The integrated unit can be implemented in the form of hardware, or in the form of a software functional unit.

[0080] The above descriptions are merely specific embodiments of the present application, enabling a person skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for formulating maintenance strategies based on intelligent switch life parameters, characterized in that, include: Calculate the lifespan parameters of the smart switch based on its hardware parameters and state parameters during remote control operation: ； in, This refers to the duration of remote control operation. This represents the current number of remote control attempts for the smart switch. This represents the theoretical maximum number of remote control cycles for the smart switch. The remote control time coefficient for the smart switch is determined by taking values ​​in stages as the remote control duration changes. This is a coefficient representing the remote control result of the smart switch, and it is related to the remote control result of the smart switch. Load current during remote control of a smart switch; in, The value is determined in stages according to the duration of remote control. The expression for the remote control time coefficient of the smart switch is as follows: ； in, The constant coefficients, For exponential coefficients, , Two duration thresholds; The expression for the remote control result coefficient of the smart switch, which is related to the remote control result of the smart switch, is as follows: ； Maintenance strategies are developed based on the lifespan parameters of the smart switches, including: Develop a maintenance and repair plan based on the lifespan parameters of the intelligent switches: For intelligent switches in the power system, the maintenance sequence is as follows: , and The maintenance and repair plan is formulated in sequence, among which, Lifespan parameter standards for smart switches; Analyze the status of the smart switch based on its lifespan parameters, and formulate corresponding maintenance plans based on the status of the smart switch reflected by the lifespan parameters. The intelligent switch is repaired and maintained according to the maintenance and repair plan and the repair scheme. After the intelligent switch is repaired, the life parameters of the intelligent switch are reset.

2. The maintenance strategy formulation method based on intelligent switch life parameters according to claim 1, characterized in that, The data acquisition system collects the status parameters of smart switches in the power system during remote control, including: remote control duration. The current number of remote control attempts for the smart switch. The smart switch responds to the remote control result and the load current when the smart switch is remotely controlled. .

3. The maintenance strategy formulation method based on intelligent switch life parameters according to claim 1, characterized in that, A pre-built smart switch hardware parameter database stores smart switch models and corresponding hardware parameters of smart switches for each model. The model of each smart switch in the power system is obtained, and the corresponding hardware parameters, including the smart switch's lifespan parameter standards, are matched against the smart switch hardware parameter database based on the model. The theoretical maximum number of remote control cycles for smart switches .

4. The maintenance strategy formulation method based on intelligent switch life parameters according to claim 1, characterized in that, After calculating the lifespan parameters of the smart switches in the power system, the analysis of the smart switch status based on these parameters includes: for The smart switch, its smart switch lifespan parameters Sort in descending order; use the sorting to batch obtain switch lifespan parameters that are less than the standard lifespan parameters of smart switches. The smart switch and its lifespan parameters exceed the standard lifespan parameters for smart switches. The smart switch; the switch lifespan parameter is less than the standard lifespan parameter of the smart switch. The smart switch is in normal operating condition and can be successfully remotely controlled; the switch lifespan parameter exceeds the standard lifespan parameter parameter for smart switches. The smart switch is in a long-life operating condition; The smart switch is experiencing communication problems. The smart switch is now in a state of remote control failure.

5. A maintenance strategy formulation device based on intelligent switch life parameters, characterized in that, include: At least one processing unit, wherein the processing unit, storage unit and acquisition unit are interconnected via a bus unit, the storage unit stores a computer program, and when the computer program is executed by the processing unit, it implements the maintenance strategy formulation method based on intelligent switch life parameters as described in any one of claims 1-4.

6. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the maintenance strategy formulation method based on the intelligent switch life parameters as described in any one of claims 1-4.

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