A method, device, equipment and storage medium for electric shock protection in a neutral point non-effective grounding system

Abstract

The present invention belongs to the field of electric power engineering, and specifically provides a method, device, equipment and storage medium for electric shock protection of a neutral point non-effective grounding system, the method comprising: collecting multi-dimensional information of the neutral point of the line, multi-dimensional information of the line, and working environment information, and generating a corresponding parameter set; setting judgment standard parameters and optimal circuit information standard parameters according to the line information parameter set; constructing a live judgment model according to the judgment standard parameters, judging whether the neutral point is live, and obtaining neutral point live judgment result parameters; calling the preset corresponding management scheme according to the line information parameter set and the live judgment result parameters, and obtaining optimized line multi-dimensional information; obtaining improved parameters according to the optimal circuit information standard parameters combined with the optimized line multi-dimensional information, incorporating the improved parameters into the optimization scheme, and outputting them as a new optimization scheme. Live judgment is performed by collecting data, and the system is optimized to achieve protection against electric shock events.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric power engineering, and in particular relates to a method, a device, a equipment and a storage medium for protecting against electric shock in a neutral point ineffectively grounded system. Background Art

[0002] The neutral point, also known as the "zero point", is the common point of the star connection in a three-phase or multi-phase AC system. The main feature of the ungrounded neutral point is that the neutral point is not directly connected to the ground, but is connected through high impedance, arc suppression coils, etc. In order to limit the current at the grounding point and allow the arc to extinguish itself, an arc suppression coil is connected between the neutral point of the power supply and the earth. The arc suppression coil can compensate for the grounding capacitance current and reduce the grounding fault current, thereby avoiding the generation of arcs. The neutral point is connected to the ground through high impedance. The high impedance can limit the size of the grounding current while maintaining the stability of the system voltage. When a single-phase grounding fault occurs, the fault current is small, and the threat to equipment and personal safety is small. Under certain conditions, it can operate with a fault for a period of time, increasing the reliability of power supply.

[0003] When a single-phase grounding fault occurs in the system, since the neutral point is not grounded, the fault current mainly forms a loop through the capacitance and insulation resistance of the line. Therefore, the fault current is relatively small. This small current allows the system to continue to operate for a short time, improving the continuity of power supply. However, it may also make it difficult to detect the fault in time, leading to electric shock accidents.

[0004] The existing neutral point non-effective grounding system cannot promptly detect faults, resulting in energized circuits and, in turn, electric shock accidents. Summary of the invention

[0005] In view of the problem that the existing neutral point ineffective grounding system cannot fail in time, resulting in circuit liveness and further causing electric shock accidents, the present invention provides a neutral point ineffective grounding system electric shock protection method, device, equipment and storage medium.

[0006] In a first aspect, the technical solution of the present invention provides a method for protecting against electric shock in a neutral point non-effectively grounded system, comprising: Collect multi-dimensional information of line neutral points and generate a set of neutral point information parameters; Collect multi-dimensional information of the line and generate a set of line information parameters; Collect line working environment information and generate a set of environmental parameters; Setting the judgment standard parameters and the optimal circuit information standard parameters according to the line information parameter set; Constructing a charged judgment model according to judgment standard parameters, judging whether the neutral point is charged, and obtaining the neutral point charged judgment result parameters; According to the line information parameter set and the live judgment result parameters, the preset corresponding management plan is retrieved to obtain the multi-dimensional information of the optimized line; Improved parameters are obtained based on the optimal circuit information standard parameters combined with the multi-dimensional information of the optimized line, and the improved parameters are incorporated into the optimization plan as a new optimization plan output.

[0007] As a further limitation of the technical solution of the present invention, the step of collecting multi-dimensional information of the neutral point of the line and generating a set of neutral point information parameters includes: Collect neutral point voltage information and obtain neutral point voltage parameters; Collect the neutral point voltage change information and obtain the neutral zone voltage change parameters; Collect neutral point charging information and obtain neutral point charging parameters; The neutral point voltage parameter, the neutral strip voltage change parameter and the neutral point charge parameter are output as a neutral point information parameter set.

[0008] As a further limitation of the technical solution of the present invention, the step of collecting multi-dimensional line information and generating a line information parameter set includes: Collect phase line voltage information in the line and obtain phase line voltage parameters; Collect transmission cable voltage information and obtain transmission cable voltage parameters; Collect transmission cable current information and obtain transmission cable current parameters; Collect the transmission cable resistance information and obtain the transmission cable resistance parameters; The phase line voltage parameter, the transmission cable voltage parameter, the transmission cable current parameter and the transmission cable resistance parameter are output as a line information parameter set.

[0009] As a further limitation of the technical solution of the present invention, the step of collecting line working environment information and generating an environmental parameter set includes: Collect line working environment temperature information and obtain working environment temperature parameters; Collect the line working environment humidity information and obtain the working environment humidity parameters; The working environment temperature parameter and the working environment humidity parameter are output as an environmental parameter set.

[0010] As a further limitation of the technical solution of the present invention, the steps of constructing a charged judgment model according to the judgment standard parameters, judging whether the neutral point is charged, and obtaining the neutral point charged judgment result parameters include: Constructing a charged judgment model according to judgment standard parameters; Substituting the neutral point information parameter set and the line information parameter set into the energized judgment model and sequentially arranging and calculating them to obtain the neutral point energized judgment result parameters; The charged judgment model is:

[0011] in, is the neutral point electrification judgment result parameter, J is the neutral point electrification parameter, s is the environmental parameter judgment parameter, p is the set judgment standard parameter, s is the actual collected line parameter, The conversion symbol for setting converts the power parameters into Arabic numerals for easy calculation.

[0012] As a further limitation of the technical solution of the present invention, the step of retrieving a preset corresponding management solution according to the line information parameter set and the live judgment result parameter to obtain the optimized line multi-dimensional information includes: Obtain the neutral point charged judgment result parameters, judge the system situation according to the neutral point charged judgment parameters, and obtain the scheme calling parameters; Call the corresponding management plan according to the plan call parameters; The line information parameter set is adjusted according to the management solution, and multi-dimensional information of the optimized line is obtained.

[0013] As a further limitation of the technical solution of the present invention, the steps of obtaining improved parameters according to the optimal circuit information standard parameters combined with the multi-dimensional information of the optimized line, incorporating the improved parameters into the optimization scheme, and outputting the new optimization scheme include: Receive optimal circuit information standard parameters and optimized line multi-dimensional information; The improved parameters are obtained by comparing the standard parameters of the optimal circuit information and the multi-dimensional information of the optimized line; The improved parameters are incorporated into the optimization scheme and output as a new optimization scheme.

[0014] In a second aspect, the technical solution of the present invention further provides an electric shock protection device for a neutral point non-effective grounding system, including a collection module, a standard parameter setting module, a live judgment processing module, a line information optimization module and a solution optimization module; The acquisition module is used to acquire multi-dimensional information of the neutral point of the line and generate a set of neutral point information parameters; acquire multi-dimensional information of the line and generate a set of line information parameters; acquire line working environment information and generate a set of environment parameters; A standard parameter setting module, used to set the judgment standard parameters and the optimal circuit information standard parameters according to the line information parameter set; A live point judgment processing module is used to construct a live point judgment model according to judgment standard parameters, judge whether the neutral point is live, and obtain neutral point live point judgment result parameters; The line information optimization module is used to retrieve the preset corresponding management plan according to the line information parameter set and the live judgment result parameters to obtain the multi-dimensional information of the optimized line; The scheme optimization module is used to obtain improved parameters based on the optimal circuit information standard parameters combined with the multi-dimensional information of the optimized line, incorporate the improved parameters into the optimization scheme, and output it as a new optimization scheme.

[0015] As a further limitation of the technical solution of the present invention, the acquisition module includes a voltage information acquisition unit, a voltage change information acquisition unit, a charged information acquisition unit and a collection output unit; A voltage information acquisition unit is used to collect neutral point voltage information and obtain neutral point voltage parameters; A voltage change information acquisition unit is used to collect neutral point voltage change information and obtain neutral zone voltage change parameters; A live information collection unit is used to collect live information of the neutral point and obtain live parameters of the neutral point; The set output unit is used to output the neutral point voltage parameter, the neutral strip voltage change parameter and the neutral point charge parameter as a neutral point information parameter set.

[0016] As a further limitation of the technical solution of the present invention, the acquisition module also includes a phase voltage acquisition unit, a cable voltage acquisition unit, a voltage and current acquisition unit, and a cable resistance acquisition unit; The phase voltage acquisition unit is used to collect the phase line voltage information in the line and obtain the phase line voltage parameters; The cable voltage acquisition unit is used to collect the voltage information of the transmission cable and obtain the voltage parameters of the transmission cable; The voltage and current acquisition unit is used to collect the current information of the transmission cable and obtain the current parameters of the transmission cable; The cable resistance acquisition unit is used to collect the transmission cable resistance information and obtain the transmission cable resistance parameters; The set output unit is used to output the phase line voltage parameter, the transmission cable voltage parameter, the transmission cable current parameter and the transmission cable resistance parameter as a line information parameter set.

[0017] As a further limitation of the technical solution of the present invention, the acquisition module also includes a temperature acquisition unit and a humidity acquisition unit; The temperature acquisition unit is used to collect the line working environment temperature information and obtain the working environment temperature parameters; Humidity collection unit, used to collect humidity information of the line working environment and obtain humidity parameters of the working environment; The set output unit is used to output the working environment temperature parameter and the working environment humidity parameter as an environmental parameter set.

[0018] As a further limitation of the technical solution of the present invention, the charged judgment processing module includes a model creation unit and a judgment processing unit; A model creation unit, used to construct a charged judgment model according to the judgment standard parameters; A judgment processing unit, used for substituting the neutral point information parameter set and the line information parameter set into the energized judgment model for sequential calculation to obtain a neutral point energized judgment result parameter; The charged judgment model is:

[0019] in, is the neutral point electrification judgment result parameter, J is the neutral point electrification parameter, s is the environmental parameter judgment parameter, p is the set judgment standard parameter, s is the actual collected line parameter, The conversion symbol for setting converts the power parameters into Arabic numerals for easy calculation.

[0020] As a further limitation of the technical solution of the present invention, the line information optimization module is specifically used to obtain the neutral point energized judgment result parameters, judge the system situation according to the neutral point energized judgment parameters, and obtain the scheme calling parameters; call the corresponding management scheme according to the scheme calling parameters; adjust the line information parameter set according to the management scheme, and obtain multi-dimensional information of the optimized line.

[0021] As a further limitation of the technical solution of the present invention, the solution optimization module is specifically used to receive the optimal circuit information standard parameters and the optimized line multi-dimensional information; obtain the improved parameters by comparing the optimal circuit information standard parameters and the optimized line multi-dimensional information; incorporate the improved parameters into the optimization solution and output it as a new optimization solution.

[0022] In the third aspect, the technical solution of the present invention also provides an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; the memory stores computer program instructions executable by the at least one processor, and the computer program instructions are executed by the at least one processor so that the at least one processor can execute the method for protecting against electric shock in a system with ineffective grounding of a neutral point as described in the first aspect.

[0023] In a fourth aspect, the technical solution of the present invention further provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions enable the computer to execute the method for protecting against electric shock in a neutral point ineffective grounding system as described in the first aspect.

[0024] It can be seen from the above technical scheme that the present invention has the following advantages: by collecting various data of the neutral point and the phase line, it is determined whether the balance is maintained between the phase lines. When the data does not meet the requirements, it means that the neutral point is energized, which in turn causes the line to be energized. At the same time, by monitoring the line data, when the data is abnormal, it means that the line is energized. Therefore, there are four states in this system: abnormally energized line, abnormally unenergized line, normally energized line, and normally unenergized line. By judging these four states, when the user uses the circuit equipment, a detection current is issued for judgment. When energized, the device is not energized if it is energized, and energized if it is not energized. Then, according to whether the actual line is abnormal, the corresponding optimization plan is retrieved in conjunction with the database to optimize the system and achieve protection against electric shock incidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 is a schematic flow chart of a method according to an embodiment of the present invention.

[0027] Figure 2 It is a logical schematic diagram of the method in the embodiment of the present invention.

[0028] Figure 3 is a schematic block diagram of an apparatus according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The neutral point, also known as the "zero point", is the common point of the star connection in a three-phase or multi-phase AC system. There are mainly two types: grounded and ungrounded. Among them, because the neutral point is not grounded, the fault current is small: when a single-phase grounding fault occurs in the system, since the neutral point is not grounded, the fault current mainly forms a loop through the capacitance of the line and the insulation resistance of the line, so the fault current is relatively small. This small current is conducive to the safe and stable operation of the system, because the heat and electromagnetic force generated by the small current have little effect on the equipment, reducing the risk of equipment damage and providing high power supply continuity. Due to the small fault current, the neutral point ungrounded system allows the system to continue to operate for a period of time (usually several hours) when a single-phase grounding fault occurs without having to immediately cut off the power supply, which increases the continuity of the power supply and reduces the power outage losses caused by instantaneous faults. Therefore, it is often used in some places with high power supply requirements. By combining with other circuits, a neutral point ungrounded system, that is, a neutral point non-effectively grounded system, is formed.

[0030] The embodiment of the present application acquires a neutral point information parameter set by collecting multi-dimensional information of the line neutral point, acquires a line information parameter set by collecting multi-dimensional information of the line, acquires a line information parameter set by collecting line working environment information, acquires an environmental parameter set, sets judgment standard parameters and optimal circuit information standard parameters according to the line information parameter set, builds a live judgment model according to the judgment standard parameters, judges whether the neutral point is live, obtains neutral point live judgment result parameters, retrieves corresponding management schemes according to the line information parameter set and the live judgment result parameters in combination with the database, obtains optimized line multi-dimensional information, acquires improved parameters according to the optimal circuit information standard parameters in combination with the optimized line multi-dimensional information, incorporates improved parameters into the optimization scheme, outputs them as new optimization schemes, and optimizes the line more effectively. In order to enable those skilled in the art to better understand the technical scheme in the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described in combination with the drawings in the embodiment of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work should belong to the scope of protection of the present invention.

[0031] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a method for protecting against electric shock in a neutral point non-effectively grounded system, comprising: S100: Collect multi-dimensional information of the neutral point of the line and generate a set of neutral point information parameters; In the embodiment of the present application, the neutral point in the circuit serves as a key node for balancing the current and plays an important role in protecting the system circuit. By collecting the multi-dimensional parameters of the neutral point, the system can collect the state of the neutral point, and judge whether the neutral point meets the standard parameters based on the neutral point judgment information, that is, whether the neutral point maintains the circuit balance, and then judge whether the neutral point is energized; exemplarily, in actual use, the various parameters of the neutral point are collected. When the various parameters in the neutral point are abnormal, it represents whether the various lines connected to the neutral point are normal, and then judge whether the lines in the circuit system are energized, thereby achieving the effect of electric shock protection; S110: Collecting neutral point voltage information and obtaining neutral point voltage parameters; S120: Collecting neutral point voltage change information and obtaining neutral zone voltage change parameters; S130: Collecting neutral point charging information and obtaining neutral point charging parameters; In the embodiment of the present application, during normal use, the neutral point voltage parameter should be 0. When the neutral point voltage changes due to the harmonics of the equipment in the circuit, the operation of each device causes the neutral point voltage to change. At this time, it is normal for the neutral voltage to change. However, when the voltage changes significantly, it means that a power equipment failure has occurred in the circuit system. At this time, the power system can be troubleshooted and the neutral point can be monitored to determine whether it is energized, so as to determine whether there is leakage in the circuit system and prevent electric shock accidents.

[0032] S200: Collect multi-dimensional information of the line and generate a line information parameter set; In the embodiment of the present application, by collecting multi-dimensional information of the line, in the circuit system, when a circuit fault occurs, harmonics will occur in the circuit, causing the circuit balance to be destroyed, which in turn causes the circuit power to shift and thus causes the circuit to be energized. At this time, if the user directly uses it, an electric shock accident may occur. For example, when the circuit is actually working, if a fault arc occurs due to poor contact, leakage, etc., due to the nonlinear change of the arc resistance, the current flowing through the faulty line or equipment will have a nonlinear relationship with the applied voltage, thereby generating a non-sinusoidal current, and then harmonics will occur, causing the power in the circuit to shift abnormally and causing the electrical equipment to be energized. At this time, an electric shock accident may occur if the energized equipment is touched. By collecting multi-dimensional information of the line and combining the above-mentioned information collected on the neutral point, the occurrence of electric shock accidents can be predicted, thereby preventing the occurrence of electric shock accidents.

[0033] Step S200 in the method provided in the embodiment of the present application includes: Collect phase line voltage information and obtain phase line voltage parameters; Collect transmission cable voltage information and obtain transmission cable voltage parameters; Collect transmission cable current information and obtain transmission cable current parameters; Collect the transmission cable resistance information and obtain the transmission cable resistance parameters.

[0034] In the embodiment of the present application, by collecting the voltage of the phase line, it is determined whether the power in the circuit system is normal and whether the circuit system is normal. At the same time, by collecting various data of the cables in the power system, it is determined whether the cables are normal. When the cables are damaged or aged, the various data of the cables will also change, resulting in an unbalanced circuit voltage. At this time, by collecting these parameters, when the parameters of the cables change, the cables can be optimized in a targeted manner through the collected cable data. For example, when the power system is operating normally, the voltage of each phase line is balanced under the action of the neutral point. When the various data of the phase line changes, the neutral point parameters also change. At this time, the neutral point is energized, which may lead to electric shock accidents. At the same time, when the transmission cable is damaged or has poor contact in the power system, the power transmitted by the transmission cable will also change, generating harmonics, which will cause power deviation in the transmission cable, which will cause leakage in the power system, and then cause electric shock accidents. By monitoring the power system, electric shock accidents can be prevented.

[0035] S300: Collect line working environment information and generate an environmental parameter set; In the embodiment of the present application, by collecting a set of environmental parameters, collecting various environmental parameters in the line, and collecting environmental parameters that affect the power system, the above-mentioned transmission circuit is collected to determine the impact of environmental parameters on the transmission circuit. At the same time, by optimizing these environmental parameters, circuit abnormalities can be prevented. By way of example, in actual work, when the ambient temperature and humidity are high, the insulation performance of the power equipment is reduced and the temperature is increased, resulting in local high temperatures in the circuit due to resistance and voltage problems. The temperature further increases, resulting in a further increase in resistance, which increases the probability of accidents.

[0036] Step S300 in the method provided in the embodiment of the present application includes: Collect line working environment temperature information and obtain working environment temperature parameters; Collect the line working environment humidity information and obtain the working environment humidity parameters; The working environment temperature parameter and the working environment humidity parameter are output as a set of environmental parameters. By collecting the working environment temperature parameters, when the ambient temperature rises, the temperature of the location with large local resistance in the transmission cable also changes accordingly. When a cable fails, the temperature can be monitored to prevent the circuit from failing due to the ambient temperature. Similarly, when the ambient humidity is high, the insulation performance of the transmission cable connection is reduced, which leads to a higher failure rate of the transmission cable due to the low insulation performance.

[0037] S400: Setting a judgment standard parameter and an optimal circuit information standard parameter according to the line information parameter set; S500: constructing a charged judgment model according to the judgment standard parameters, judging whether the neutral point is charged, and obtaining a neutral point charged judgment result parameter; Step S500 in the method provided in the embodiment of the present application includes: S510: Setting a line evaluation standard according to a line information parameter set; S520: constructing a live line judgment model according to the line judgment standard; S530: Substituting the neutral point information parameter set and the line information parameter set into the energized judgment model and arranging and calculating them in the order of the judgment formula to obtain the neutral point energized judgment result parameters; The charged judgment model is:

[0038] in, is the neutral point electrification judgment result parameter, J is the neutral point electrification parameter, s is the environmental parameter judgment parameter, p is the set judgment standard parameter, s is the actual collected line parameter, The conversion symbol for setting converts the power parameters into Arabic numerals for easy calculation.

[0039] S600: Retrieving a preset corresponding management solution according to the line information parameter set and the live judgment result parameter to obtain multi-dimensional information of the optimized line; In an embodiment of the present application, after completing the collection of the above-mentioned data, the circuit can be energized and various parameters in the circuit system can be collected by combining the line information parameter set and the energized judgment result parameter. At the same time, these parameters can be used to determine what type of fault the system belongs to. According to the type of fault, the circuit system can be controlled in a targeted manner. For example, when a circuit fails, the system circuit is first determined whether it is energized by using the above-mentioned collected parameters, and then whether it is powered. Then, the various data and environmental parameters collected in the power system are combined to determine whether the cable meets the judgment standard parameters. If so, it means that the system circuit meets the requirements and there is no fault. If not, it means that the system circuit has a fault and needs to be repaired. In the present application, regardless of whether the circuit is energized, it is necessary to determine whether the cable meets the judgment standard parameters, so as to solve the problem in a targeted manner. When the problem is discovered, the cause of the leakage can also be detected, which is convenient for targeted maintenance and parameter adjustment.

[0040] S700: Obtaining improved parameters according to the optimal circuit information standard parameters combined with the optimized line multi-dimensional information, incorporating the improved parameters into the optimization plan, and outputting the new optimization plan; In the embodiment of the present application, after the evaluation of the circuit system is completed, the corresponding adjustment plan is retrieved from the database in combination with the system circuit fault type to obtain the multi-dimensional information of the optimized line, and the various parameters of the circuit system are adjusted according to the multi-dimensional information of the optimized line, and then the various parameters in the system circuit are adjusted according to the adjustment plan. After the adjustment is completed, the multi-dimensional information of the optimized line and the optimal circuit information standard parameters are combined to obtain the improved parameters. Here, the improved parameters are the percentage optimization made according to each optimizable point in the system. For example, when the numerical score of the circuit system is low due to temperature and humidity in the system, the numerical score can be improved by controlling the temperature and humidity through the set device. At this time, the percentage of the improved multi-dimensional parameters of the optimized line according to the optimal circuit information standard parameters is determined by the influence of temperature and humidity on the cable. The greater the influence, the greater the percentage, that is, the greater the value of the multi-dimensional information of the optimized line to the optimal circuit information standard parameters, and the optimized value is output as the improved parameter, and the improved parameter is incorporated into the optimization plan as a new optimization plan output.

[0041] like Figure 3 As shown, an embodiment of the present invention further provides an electric shock protection device for a neutral point non-effective grounding system, including a collection module, a standard parameter setting module, a live judgment processing module, a line information optimization module and a solution optimization module; The acquisition module is used to acquire multi-dimensional information of the neutral point of the line and generate a set of neutral point information parameters; acquire multi-dimensional information of the line and generate a set of line information parameters; acquire line working environment information and generate a set of environment parameters; A standard parameter setting module, used to set the judgment standard parameters and the optimal circuit information standard parameters according to the line information parameter set; A charged judgment processing module is used to construct a charged judgment model according to the judgment standard parameters, judge whether the neutral point is charged, and obtain the neutral point charged judgment result parameters; The line information optimization module is used to retrieve the preset corresponding management plan according to the line information parameter set and the live judgment result parameters to obtain the multi-dimensional information of the optimized line; The scheme optimization module is used to obtain improved parameters according to the optimal circuit information standard parameters combined with the optimized line multi-dimensional information, incorporate the improved parameters into the optimization scheme, and output it as a new optimization scheme.

[0042] In some embodiments, the acquisition module includes a voltage information acquisition unit, a voltage change information acquisition unit, a charged information acquisition unit, and a collection output unit; A voltage information acquisition unit is used to collect neutral point voltage information and obtain neutral point voltage parameters; A voltage change information acquisition unit is used to collect neutral point voltage change information and obtain neutral zone voltage change parameters; A live information collection unit is used to collect live information of the neutral point and obtain live parameters of the neutral point; The set output unit is used to output the neutral point voltage parameter, the neutral strip voltage change parameter and the neutral point charge parameter as a neutral point information parameter set.

[0043] The acquisition module also includes a phase voltage acquisition unit, a cable voltage acquisition unit, a voltage and current acquisition unit, and a cable resistance acquisition unit; The phase voltage acquisition unit is used to collect the phase line voltage information in the line and obtain the phase line voltage parameters; The cable voltage acquisition unit is used to collect the voltage information of the transmission cable and obtain the voltage parameters of the transmission cable; The voltage and current acquisition unit is used to collect the current information of the transmission cable and obtain the current parameters of the transmission cable; The cable resistance acquisition unit is used to collect the transmission cable resistance information and obtain the transmission cable resistance parameters; The set output unit is used to output the phase line voltage parameter, the transmission cable voltage parameter, the transmission cable current parameter and the transmission cable resistance parameter as a line information parameter set.

[0044] The acquisition module also includes a temperature acquisition unit and a humidity acquisition unit; The temperature acquisition unit is used to collect the line working environment temperature information and obtain the working environment temperature parameters; Humidity collection unit, used to collect humidity information of the line working environment and obtain humidity parameters of the working environment; The set output unit is used to output the working environment temperature parameter and the working environment humidity parameter as an environmental parameter set.

[0045] In some embodiments, the charged judgment processing module includes a model creation unit and a judgment processing unit; A model creation unit, used to construct a charged judgment model according to the judgment standard parameters; A judgment processing unit, used for substituting the neutral point information parameter set and the line information parameter set into the energized judgment model for sequential calculation to obtain a neutral point energized judgment result parameter; The charged judgment model is:

[0046] in, is the neutral point electrification judgment result parameter, J is the neutral point electrification parameter, s is the environmental parameter judgment parameter, p is the set judgment standard parameter, s is the actual collected line parameter, The conversion symbol for setting converts the power parameters into Arabic numerals for easy calculation.

[0047] In some embodiments, the line information optimization module is specifically used to obtain the neutral point live judgment result parameters, judge the system situation according to the neutral point live judgment parameters, and obtain the scheme calling parameters; call the corresponding management scheme according to the scheme calling parameters; adjust the line information parameter set according to the management scheme, and obtain multi-dimensional information of the optimized line.

[0048] In some embodiments, the solution optimization module is specifically used to receive the optimal circuit information standard parameters and the optimized line multi-dimensional information; obtain the improved parameters by comparing the optimal circuit information standard parameters and the optimized line multi-dimensional information; and incorporate the improved parameters into the optimization solution as a new optimization solution output.

[0049] The embodiment of the present invention also provides an electronic device, which includes: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus. The communication bus can be used for information transmission between the electronic device and the sensor. The processor can call the logic instructions in the memory to execute the following method: collect multi-dimensional information of the neutral point of the line to generate a set of neutral point information parameters; collect multi-dimensional information of the line to generate a set of line information parameters; collect line working environment information to generate an environmental parameter set; set judgment standard parameters and optimal circuit information standard parameters according to the line information parameter set; construct a live judgment model according to the judgment standard parameters to judge whether the neutral point is live, and obtain the neutral point live judgment result parameters; call the preset corresponding management plan according to the line information parameter set and the live judgment result parameters to obtain the optimized line multi-dimensional information; obtain the improved parameters according to the optimal circuit information standard parameters combined with the optimized line multi-dimensional information, and incorporate the improved parameters into the optimization plan as a new optimization plan output.

[0050] In addition, the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program code.

[0051] An embodiment of the present invention provides a non-transitory computer-readable storage medium, which stores computer instructions, and the computer instructions enable a computer to execute the method provided by the above method embodiment, for example, including: collecting multi-dimensional information of the neutral point of the line to generate a neutral point information parameter set; collecting multi-dimensional information of the line to generate a line information parameter set; collecting line working environment information to generate an environment parameter set; setting judgment standard parameters and optimal circuit information standard parameters according to the line information parameter set; constructing a live judgment model according to the judgment standard parameters to judge whether the neutral point is energized, and obtaining neutral point energized judgment result parameters; calling a preset corresponding management plan according to the line information parameter set and the energized judgment result parameters to obtain optimized line multi-dimensional information; obtaining improved parameters according to the optimal circuit information standard parameters combined with the optimized line multi-dimensional information, incorporating the improved parameters into the optimization plan, and outputting them as a new optimization plan.

[0052] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0053] An embodiment of the device for protecting against electric shock in a system with ineffective grounding of a neutral point is provided in an embodiment of the present invention. The device and the method for protecting against electric shock in a system with ineffective grounding of a neutral point belong to the same inventive concept. For details not fully described in the embodiment of the device for protecting against electric shock in a system with ineffective grounding of a neutral point, reference can be made to the embodiment of the method for protecting against electric shock in a system with ineffective grounding of a neutral point.

[0054] Although the present invention has been described in detail with reference to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person of ordinary skill in the art may easily think of changes or substitutions within the technical scope disclosed by the present invention, and these shall be within the scope of protection of the present invention.

Claims

1. A method for protecting against electric shock in a neutral point non-effectively grounded system, characterized in that: include: Collect multi-dimensional information of line neutral points and generate a set of neutral point information parameters; Collect multi-dimensional information of the line and generate a set of line information parameters; Collect line working environment information and generate a set of environmental parameters; Setting the judgment standard parameters and the optimal circuit information standard parameters according to the line information parameter set; Constructing a charged judgment model according to judgment standard parameters, judging whether the neutral point is charged, and obtaining the neutral point charged judgment result parameters; According to the line information parameter set and the live judgment result parameters, the preset corresponding management plan is retrieved to obtain the multi-dimensional information of the optimized line; Improved parameters are obtained based on the optimal circuit information standard parameters combined with the multi-dimensional information of the optimized line, and the improved parameters are incorporated into the optimization plan as a new optimization plan output.

2. The method for protecting against electric shock in a neutral point non-effectively grounded system according to claim 1, characterized in that: The steps of collecting multi-dimensional information of the neutral point of the line and generating a set of neutral point information parameters include: Collect neutral point voltage information and obtain neutral point voltage parameters; Collect the neutral point voltage change information and obtain the neutral zone voltage change parameters; Collect neutral point charging information and obtain neutral point charging parameters; The neutral point voltage parameter, the neutral strip voltage change parameter and the neutral point charge parameter are output as a neutral point information parameter set.

3. The method for protecting against electric shock in a neutral point non-effectively grounded system according to claim 2, characterized in that: The steps of collecting multi-dimensional line information and generating a line information parameter set include: Collect phase line voltage information in the line and obtain phase line voltage parameters; Collect transmission cable voltage information and obtain transmission cable voltage parameters; Collect transmission cable current information and obtain transmission cable current parameters; Collect the transmission cable resistance information and obtain the transmission cable resistance parameters; The phase line voltage parameter, the transmission cable voltage parameter, the transmission cable current parameter and the transmission cable resistance parameter are output as a line information parameter set.

4. The method for protecting against electric shock in a neutral point non-effectively grounded system according to claim 3, characterized in that: The steps of collecting line working environment information and generating an environmental parameter set include: Collect line working environment temperature information and obtain working environment temperature parameters; Collect the line working environment humidity information and obtain the working environment humidity parameters; The working environment temperature parameter and the working environment humidity parameter are output as an environmental parameter set.

5. The method for protecting against electric shock in a neutral point non-effectively grounded system according to claim 4, characterized in that: The steps of constructing a charged judgment model according to judgment standard parameters, judging whether the neutral point is charged, and obtaining the neutral point charged judgment result parameters include: Constructing a charged judgment model according to judgment standard parameters; Substituting the neutral point information parameter set and the line information parameter set into the energized judgment model and performing sequential calculations to obtain the neutral point energized judgment result parameters; The charged judgment model is: in, is the neutral point electrification judgment result parameter, J is the neutral point electrification parameter, s is the environmental parameter judgment parameter, p is the set judgment standard parameter, s is the actual collected line parameter, The conversion symbol for setting converts the power parameters into Arabic numerals for easy calculation.

6. The method for protecting against electric shock in a neutral point non-effectively grounded system according to claim 5, characterized in that: The steps of retrieving a preset corresponding management scheme according to the line information parameter set and the live judgment result parameter to obtain multi-dimensional information of the optimized line include: Obtain the neutral point charged judgment result parameters, judge the system situation according to the neutral point charged judgment parameters, and obtain the scheme calling parameters; Call the corresponding management plan according to the plan call parameters; Adjust the line information parameter set according to the management plan, and obtain multi-dimensional information of the optimized line.

7. The method for protecting against electric shock in a neutral point non-effectively grounded system according to claim 6, characterized in that: The steps of obtaining improved parameters based on the optimal circuit information standard parameters combined with the multi-dimensional information of the optimized line and incorporating the improved parameters into the optimization scheme as a new optimization scheme output include: Receive optimal circuit information standard parameters and optimized line multi-dimensional information; The improved parameters are obtained by comparing the standard parameters of the optimal circuit information and the multi-dimensional information of the optimized line; The improved parameters are incorporated into the optimization scheme and output as a new optimization scheme.

8. A device for protecting against electric shock in a neutral point non-effectively grounded system, characterized in that: It includes acquisition module, standard parameter setting module, live judgment processing module, line information optimization module and solution optimization module; The acquisition module is used to acquire multi-dimensional information of the neutral point of the line and generate a set of neutral point information parameters; acquire multi-dimensional information of the line and generate a set of line information parameters; acquire line working environment information and generate a set of environment parameters; A standard parameter setting module, used to set the judgment standard parameters and the optimal circuit information standard parameters according to the line information parameter set; A live point judgment processing module is used to construct a live point judgment model according to judgment standard parameters, judge whether the neutral point is live, and obtain neutral point live point judgment result parameters; The line information optimization module is used to retrieve the preset corresponding management plan according to the line information parameter set and the live judgment result parameters to obtain the multi-dimensional information of the optimized line; The scheme optimization module is used to obtain improved parameters based on the optimal circuit information standard parameters combined with the multi-dimensional information of the optimized line, incorporate the improved parameters into the optimization scheme, and output it as a new optimization scheme.

9. An electronic device, characterized in that: The electronic device includes: at least one processor; and a memory communicatively connected to the at least one processor; the memory stores computer program instructions executable by the at least one processor, and the computer program instructions are executed by the at least one processor so that the at least one processor can execute the method for protecting against electric shock in a neutral point ineffective grounding system as described in any one of claims 1 to 6.

10. A non-transitory computer-readable storage medium, characterized in that: The non-transitory computer-readable storage medium stores computer instructions, and the computer instructions enable the computer to execute the method for protecting against electric shock in a neutral point non-effectively grounded system as described in any one of claims 1 to 6.

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