Switch cabinet remote monitoring method and system and storage medium

Abstract

The invention relates to the technical field of switch cabinet monitoring, and particularly discloses a switch cabinet remote monitoring method and system and a storage medium. According to the invention, the electrical parameters of the switch cabinet corresponding to the set monitoring time period are monitored and analyzed, and the electrical quality inspection value of the switch cabinet corresponding to the set monitoring time period is analyzed, so that the electrical condition of each phase of the switch cabinet can be comprehensively known, and the inter-phase electrical relationship is considered; the timeliness of electrical fault analysis of the switch cabinet is improved to a certain extent, and the reliability and stability of the switch cabinet are improved to the maximum extent. By analyzing the maintenance data of the switch cabinet corresponding to the set monitoring time period, the maintenance data of the switch cabinet corresponding to the set monitoring time period can be rapidly and visually reflected, reliable data support is provided for maintenance personnel, time cost increase caused by maintenance fault reasons is avoided, and the maintenance efficiency is improved. The remote monitoring method of the switch cabinet is more practical.

Description

Technical Field

[0001] The present invention relates to the technical field of switch cabinet monitoring, and in particular to a switch cabinet remote monitoring method, system and storage medium. Background Art

[0002] Switchgear is a very important electrical equipment in the power system. It is used to control and protect the normal operation of power lines and equipment. The operating status of the switchgear is directly related to the stability and reliability of the power system. Therefore, remote data monitoring of the switchgear is of great significance.

[0003] At present, the monitoring of switchgear mainly relies on manual inspection and recording of its operation status within a set period, and then performing corresponding operations according to the monitoring results. However, this manual monitoring method has many disadvantages. First, manual monitoring is subjective, and different monitoring personnel may have different judgments and understandings of the same operating status, which makes it difficult to ensure the accuracy and consistency of the monitoring results. Secondly, manual monitoring cannot obtain the operating data of the switchgear in real time and continuously, and it is difficult to detect potential fault hazards in time. Once an abnormal situation occurs in the switchgear, it may not be known in time, which delays the processing time and poses a threat to the safe operation of the power system. In addition, manual monitoring requires a lot of manpower and time costs, and is inefficient, which makes it difficult to meet the requirements of modern power systems for efficient and accurate monitoring.

[0004] In order to solve the above defects, a technical solution is now provided. Summary of the invention

[0005] The object of the present invention is to provide a switch cabinet remote monitoring method, system and storage medium to solve the above-mentioned background problems.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A first aspect of the present invention provides a switch cabinet remote monitoring method, comprising the following steps:

[0008] Step 1: Electrical monitoring and analysis: monitor and analyze the electrical parameters of the switch cabinet corresponding to the set monitoring period to obtain the electrical quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0009] Step 2: Insulation monitoring and analysis: monitor and analyze the insulation parameters of the switch cabinet corresponding to the set monitoring period to obtain the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0010] Step 3: Mechanical component analysis: monitor and analyze the parameters of the mechanical components of the switch cabinet corresponding to the set monitoring period, and obtain the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0011] Step 4: Internal environment monitoring: monitor and analyze the internal environment parameters of the switch cabinet corresponding to the set monitoring period, and obtain the internal ring quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0012] Step 5: Remote diagnosis and analysis: Analyze the maintenance data of the switch cabinet during the set monitoring period based on the electrical quality inspection value, insulation quality inspection value, mechanical quality inspection value and inner ring quality inspection value of the switch cabinet during the set monitoring period to obtain the maintenance data of the switch cabinet during the set monitoring period;

[0013] Step 6: Execution: Execute corresponding operations based on the maintenance data of the switch cabinet corresponding to the set monitoring period.

[0014] Preferably, the electrical parameters of the switch cabinet corresponding to the set monitoring period are monitored and analyzed, and the specific execution steps are as follows:

[0015] 101: Get the bus area and bus color corresponding to the switch cabinet. The area with yellow bus color is phase A, the area with green bus color is phase B, and the area with red bus color is phase C. Thus, the three-phase phase corresponding to the switch cabinet is obtained.

[0016] 102: The phase voltages of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet are detected by a voltage sensor to obtain the phase voltages of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet, and the average values ​​are calculated respectively to obtain the average phase voltage of phase A, the average phase voltage of phase B, and the average phase voltage of phase C in the set monitoring period of the switch cabinet, which are recorded as According to the formula Calculate the A-phase voltage deviation value ΔU of the switch cabinet corresponding to the set monitoring period A , B phase voltage deviation value ΔU B , C phase voltage deviation value ΔU C , U 相 ' represents the set reference phase voltage;

[0017] 103: extract the maximum value from the A-phase voltage deviation value, the B-phase voltage deviation value, and the C-phase voltage deviation value of the switch cabinet corresponding to the set monitoring period as the phase voltage deviation index of the switch cabinet corresponding to the set monitoring period, recorded as E1;

[0018] 104: At the same time, the maximum phase voltage and the minimum phase voltage are extracted from the phase voltages of phase A, phase B, and phase C at each monitoring time point in the corresponding set monitoring period of the switch cabinet, and are recorded as The phase voltages of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet are averaged to obtain the average phase voltage at each monitoring time point in the set monitoring period of the switch cabinet, which is recorded as i represents the number of each monitoring time point, i = 1, 2, ..., m, m represents the total number of monitoring time point numbers, according to the formula Calculate the three-phase voltage imbalance VUF of the switch cabinet at each monitoring time point within the set monitoring period i ;

[0019] 105: Detect the line voltages of the AB phase, BC phase, and CA phase at each monitoring time point in the set monitoring period of the switch cabinet, obtain the line voltages of the AB phase, BC phase, and CA phase at each monitoring time point in the set monitoring period of the switch cabinet, and calculate the average values ​​thereof respectively, and obtain the average line voltages of the AB phase, BC phase, and CA phase in the set monitoring period of the switch cabinet, which are recorded as

[0020] According to the formula Calculate the AB phase line voltage deviation value ΔU of the switch cabinet corresponding to the set monitoring period AB , BC phase line voltage deviation value ΔU BC , CA phase line voltage deviation value ΔU CA , U 线 ' represents the set reference line voltage;

[0021] 106: extract the maximum value from the AB phase line voltage deviation value, the BC phase line voltage deviation value, and the CA phase line voltage deviation value of the switch cabinet in the corresponding set monitoring period as the line voltage deviation index of the switch cabinet in the corresponding set monitoring period, recorded as E2;

[0022] 107: According to the formula Calculate the voltage condition value ω1 of the switch cabinet corresponding to the set monitoring, E1', E2', VUF' respectively represent the set reference phase voltage deviation index, reference line voltage deviation index, reference three-phase voltage imbalance, a1, a2, a3 respectively represent the set influence factors;

[0023] 108: Detect the phase currents of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet through the current sensor to obtain the phase currents of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet, and perform the same operation according to steps 102-107 to obtain the phase current deviation index F1 of the switch cabinet corresponding to the set monitoring period, and the three-phase current imbalance degree VIF of the switch cabinet at each monitoring time point in the set monitoring period. i , the switch cabinet corresponds to the line current deviation index F2 of the set monitoring period;

[0024] 109: According to the formula Calculate the flow condition value ω2 of the switch cabinet corresponding to the set monitoring period, F1', F2', VIF' respectively represent the set reference phase current deviation index, reference line current deviation index, reference three-phase current imbalance, a4, a5, a6 respectively represent the set influencing factors;

[0025] 110: According to the formula The electrical quality inspection value η of the switch cabinet corresponding to the set monitoring period is calculated, and b1 and b2 are respectively represented as the set weight factors.

[0026] Preferably, the insulation parameters of the switch cabinet corresponding to the set monitoring period are monitored and analyzed, and the specific execution steps are as follows:

[0027] Obtain the insulation area corresponding to the switch cabinet, and arrange the detection points in the insulation area to obtain the detection points of the insulation area corresponding to the switch cabinet;

[0028] The set monitoring period is divided into various monitoring time points according to the time points, and the last monitoring time point is extracted from each monitoring time point as the target time point;

[0029] The regional image of the switch cabinet insulation area corresponding to the target time point is collected by a camera to obtain the regional image of the switch cabinet insulation area corresponding to the target time point;

[0030] The number of abnormal areas and the area of ​​each abnormal area are extracted from the regional image of the switch cabinet insulation area corresponding to the target time point, and the area of ​​each abnormal area is accumulated and calculated to obtain the total area of ​​the abnormal area. Calculate the insulation value BK, N of the switch cabinet corresponding to the set monitoring period 异 Expressed as the number of abnormal regions, S 异 It is represented as the total area of ​​abnormal region, c1 and c2 respectively represent the set influencing factors; wherein, the abnormal region includes but is not limited to crack region, damaged region, discolored region, and discharge mark region.

[0031] The insulation resistance of each detection point in the insulation area of ​​the switch cabinet corresponding to each monitoring time point in the set monitoring period is tested by an insulation resistance tester, and the insulation resistance of each detection point in the insulation area of ​​the switch cabinet corresponding to each monitoring time point in the set monitoring period is obtained, which is recorded as The insulation resistance of each detection point in the insulation area of ​​the switch cabinet corresponding to the first monitoring time point in the set monitoring period is extracted and recorded as According to the formula Calculate the insulation resistance value ZK of the switch cabinet corresponding to the set monitoring period, R0 represents the set reference insulation resistance, c3, c4, c5 represent the set influence factors respectively;

[0032] The partial discharge sensor is used to detect the discharge amount, discharge frequency, and discharge phase of each detection point in the insulation area of ​​the switch cabinet corresponding to the set monitoring period, and the discharge amount, discharge frequency, and discharge phase of each detection point in the insulation area of ​​the switch cabinet corresponding to the set monitoring period are obtained, which are recorded as FL j , FP j 、FW j , according to the formula Calculate the partial discharge value FK of each detection point in the insulation area of ​​the switch cabinet corresponding to the set monitoring period, FL', FP', FW' respectively represent the set reference discharge amount, reference discharge frequency, reference discharge phase, c6, c7, c8 respectively represent the set influence factors;

[0033] According to the formula The insulation quality inspection value ξ of the switch cabinet corresponding to the set monitoring period is calculated, and d1, d2, and d3 are respectively represented as the set weight factors.

[0034] As a further solution of the present invention, the parameters of the mechanical components of the switch cabinet corresponding to the set monitoring period are monitored and analyzed, and the specific execution steps are as follows:

[0035] Obtain each mechanical component in the switch cabinet, and use the sound sensor to detect the number of abnormal sounds and the duration of each abnormal sound of each mechanical component of the switch cabinet corresponding to the set monitoring period, and obtain the number of abnormal sounds and the duration of each abnormal sound of each mechanical component of the switch cabinet corresponding to the set monitoring period, and accumulate and calculate the duration of each abnormality, thereby obtaining the number of abnormal sounds and the total duration of abnormality of each mechanical component of the switch cabinet corresponding to the set monitoring period, which are recorded as N respectively. f 、T f , according to the formula YX f =N f ×e1+T f ×e2 Calculate the abnormal sound value YX of each mechanical component of the switch cabinet corresponding to the set monitoring period f , f represents the number of each mechanical component, f = 1, 2, ..., g, g represents the total number of mechanical component numbers, e1 and e2 represent the set influence factors respectively;

[0036] The contour images of each mechanical component of the switch cabinet corresponding to the set monitoring period are collected by the camera to obtain the contour images of each mechanical component of the switch cabinet corresponding to the set monitoring period, and the wear scar length, wear scar width, and wear scar depth of each mechanical component of the switch cabinet corresponding to the set monitoring period are extracted from them, which are recorded as L f , D f , H f , according to the formula SK f =L f ×e3+D f ×e4+H f×e5 Calculate the damage value SK of each mechanical component of the switch cabinet corresponding to the set monitoring period f , e3, e4, and e5 represent the set proportional factors respectively;

[0037] According to the formula Calculate the switch cabinet parts quality inspection value corresponding to the set monitoring period e6 and e7 represent the set weight factors respectively.

[0038] Preferably, the inner loop parameters of the switch cabinet corresponding to the set monitoring period are monitored and analyzed, and the specific execution steps are as follows:

[0039] 401: Detecting the temperature of the switch cabinet body at each monitoring time point within the set monitoring period by a temperature sensor, obtaining the temperature of the switch cabinet body at each monitoring time point within the set monitoring period, taking each monitoring time point as the abscissa and the temperature as the ordinate, and establishing a two-dimensional coordinate system of the cabinet body internal temperature, and plotting the temperature of each monitoring time point on the temperature two-dimensional coordinate system by plotting points;

[0040] 402: Set the temperature reference line inside the cabinet, record the points on and above the temperature reference line as abnormal temperature points, and count the number of abnormal temperature points, recorded as N 异温 , calculate the difference between the temperature corresponding to each temperature abnormal point and the temperature corresponding to the temperature reference line inside the cabinet, obtain the temperature deviation corresponding to each temperature abnormal point, and calculate the average value thereof to obtain the mean value of temperature deviation, recorded as WP, take the monitoring time points corresponding to two adjacent temperature abnormal points, and extract the interval duration corresponding to the monitoring time points corresponding to the two adjacent temperature abnormal points, obtain the interval duration corresponding to the two adjacent temperature abnormal points, and at the same time calculate the average value of the interval duration corresponding to all two adjacent temperature abnormal points, obtain the interval average time, recorded as WT;

[0041] 403: According to the formula Calculate the temperature difference WY inside the switch cabinet corresponding to the set monitoring period, where x1, x2, and x3 are respectively represented as the set weight factors;

[0042] 404: Detect the humidity of the switch cabinet body at each monitoring time point within the set monitoring period by means of a humidity sensor, and obtain the humidity of each detection point within the switch cabinet body at each monitoring time point within the set monitoring period, and perform the same operation as steps 401-403, thereby obtaining the humidity abnormal value SY within the switch cabinet body corresponding to the set monitoring period;

[0043] 405: Detect the number of dust particles at each monitoring time point within the set monitoring period inside the switch cabinet by using a dust sensor, obtain the number of dust particles at each monitoring time point within the set monitoring period inside the switch cabinet, and extract the number of dust particles at the first monitoring time point and the number of dust particles at the last monitoring time point, which are recorded as KL respectively. 末 , KL 初 , and extract the duration corresponding to the time period between the first monitoring time point and the last monitoring time point, recorded as T;

[0044] 406: According to the formula Calculate the dust accumulation rate V inside the switch cabinet corresponding to the set monitoring period;

[0045] 407: The camera is used to collect images of the switch cabinet body at each monitoring time point within the set monitoring period, and the image of the switch cabinet body at the last monitoring time point within the set monitoring period is extracted from the images. The image recognition technology is used to identify and segment the debris in the image, and the number of debris and the volume ratio of each debris at the last monitoring time point within the set monitoring period within the switch cabinet body are obtained. At the same time, the volume ratio of each debris is accumulated and calculated to obtain the total volume ratio of the debris. According to the formula ZW=N 杂物 ×x7+V 杂物 ×x8 Calculate the debris accumulation value ZW, N inside the switch cabinet corresponding to the set monitoring period 杂物 、V 杂物 They are respectively represented by the number of debris and the percentage of debris in the total volume, and x7 and x8 are respectively represented by the set proportional factors;

[0046] 408: According to the formula The inner ring quality inspection value γ of the switch cabinet corresponding to the set monitoring period is calculated, and y1, y2, y3, and y4 are respectively represented as the set weight factors.

[0047] Preferably, the maintenance data of the switch cabinet corresponding to the set monitoring period is analyzed, and the specific analysis method is:

[0048] The electrical quality inspection value of the switch cabinet corresponding to the set monitoring period is compared with the set reference electrical quality inspection value. If the electrical quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference electrical quality inspection value, the electrical quality inspection value of the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period;

[0049] Compare the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period with the set reference insulation quality inspection value. If the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference insulation quality inspection value, the insulation corresponding to the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period;

[0050] Compare the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period with the set reference mechanical component quality inspection value. If the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference mechanical component quality inspection value, the mechanical component corresponding to the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period;

[0051] The inner ring quality inspection value of the switch cabinet corresponding to the set monitoring period is compared with the set reference inner ring quality inspection value. If the inner ring quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference inner ring quality inspection value, the internal environment corresponding to the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period.

[0052] A second aspect of the present invention provides a switch cabinet remote monitoring system, including an electrical monitoring and analysis module, an insulation monitoring and analysis module, a mechanical component analysis module, an internal environment monitoring module, a remote diagnosis and analysis module, and an execution terminal.

[0053] The electrical monitoring and analysis module is used to monitor and analyze the electrical parameters of the switch cabinet corresponding to the set monitoring period, and obtain the electrical quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0054] The insulation monitoring and analysis module is used to monitor and analyze the insulation parameters of the switch cabinet corresponding to the set monitoring period, and obtain the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0055] The mechanical component analysis module is used to monitor and analyze the parameters of the mechanical components of the switch cabinet corresponding to the set monitoring period, and obtain the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0056] The internal environment monitoring module is used to monitor and analyze the internal environment parameters of the switch cabinet corresponding to the set monitoring period, and obtain the internal ring quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0057] The remote diagnosis and analysis module is used to analyze the maintenance data of the switch cabinet in the corresponding set monitoring period based on the electrical quality inspection value, insulation quality inspection value, mechanical quality inspection value and inner ring quality inspection value of the switch cabinet in the corresponding set monitoring period, and obtain the maintenance data of the switch cabinet in the corresponding set monitoring period;

[0058] The execution terminal is used to perform corresponding operations based on the maintenance data of the switch cabinet corresponding to the set monitoring period.

[0059] A third aspect of the present invention provides a computer-readable storage medium, which includes a switch cabinet remote monitoring method program. When the switch cabinet remote monitoring method program is executed by a processor, the steps of any one of the switch cabinet remote monitoring methods are implemented.

[0060] Beneficial effects of the present invention:

[0061] The present invention monitors and analyzes the electrical parameters of the switch cabinet during the corresponding set monitoring period, and thereby analyzes the electrical quality inspection values ​​of the switch cabinet during the corresponding set monitoring period. This can not only fully understand the electrical conditions of each phase of the switch cabinet, but also take into account the electrical relationship between phases, thereby improving the timeliness of the electrical fault analysis of the switch cabinet to a certain extent, and improving the reliability and stability of the switch cabinet to the greatest extent.

[0062] The present invention monitors and analyzes the insulation parameters of the switch cabinet during the set monitoring period, and thereby analyzes the insulation quality inspection value of the switch cabinet during the set monitoring period, so as to effectively monitor insulation aging, damage, partial discharge and other problems, and to a certain extent effectively prevent serious faults such as short circuits caused by insulation failure.

[0063] The present invention monitors and analyzes the parameters of the mechanical components of the switch cabinet during the corresponding set monitoring period, and thereby analyzes the mechanical quality inspection values ​​of the switch cabinet during the corresponding set monitoring period, so as to timely capture the signs of looseness, wear and deformation of mechanical components, thereby achieving early warning of mechanical component failures, so as to arrange inspections and maintenance in time, and effectively prevent problems such as poor electrical connections caused by mechanical failures to a certain extent.

[0064] The present invention monitors and analyzes the internal environmental parameters of the switch cabinet corresponding to the set monitoring period, and thereby analyzes the inner ring quality inspection value of the switch cabinet corresponding to the set monitoring period, thereby largely avoiding the situation where the normal operation of the switch cabinet is affected by the abnormal internal environment of the switch cabinet, and further improves the stable operation of the switch cabinet.

[0065] By analyzing the maintenance data of the switch cabinet corresponding to the set monitoring period, the present invention can quickly and intuitively reflect the maintenance data of the switch cabinet corresponding to the set monitoring period, provide reliable data support for maintenance personnel, avoid the increase in time cost due to maintenance failure causes, and make the remote monitoring method of the switch cabinet more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] The present invention will be further described below in conjunction with the accompanying drawings.

[0067] Figure 1 It is a flow chart of the method of the present invention.

[0068] Figure 2 It is a system block diagram of the present invention. DETAILED DESCRIPTION

[0069] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] Embodiment 1:

[0071] See also Figure 1 As shown, a switch cabinet remote monitoring method includes the following steps:

[0072] Step 1: Electrical monitoring and analysis: Monitor and analyze the electrical parameters of the switch cabinet corresponding to the set monitoring period to obtain the electrical quality inspection value of the switch cabinet corresponding to the set monitoring period. The specific execution steps are as follows:

[0073] Get the bus area and bus color corresponding to the switch cabinet. The area with yellow bus color is phase A, the area with green bus color is phase B, and the area with red bus color is phase C. Thus, the three-phase phase corresponding to the switch cabinet is obtained;

[0074] The phase voltages of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet are detected by the voltage sensor to obtain the phase voltages of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet, and the average values ​​are calculated respectively to obtain the average phase voltage of phase A, the average phase voltage of phase B, and the average phase voltage of phase C in the set monitoring period of the switch cabinet, which are recorded as According to the formula Calculate the A-phase voltage deviation value ΔU of the switch cabinet corresponding to the set monitoring period A , B phase voltage deviation value ΔU B , C phase voltage deviation value ΔU C , U 相 ' represents the set reference phase voltage;

[0075] The maximum value is extracted from the A-phase voltage deviation value, B-phase voltage deviation value, and C-phase voltage deviation value of the switch cabinet corresponding to the set monitoring period as the phase voltage deviation index of the switch cabinet corresponding to the set monitoring period, denoted as E1, that is, E1=max(ΔU A ,ΔU B ,ΔU C );

[0076] At the same time, the maximum phase voltage and the minimum phase voltage are extracted from the phase voltages of phase A, phase B, and phase C at each monitoring time point in the corresponding monitoring period of the switch cabinet, and are recorded as The phase voltages of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet are averaged to obtain the average phase voltage at each monitoring time point in the set monitoring period of the switch cabinet, which is recorded as i represents the number of each monitoring time point, i = 1, 2, ..., m, m represents the total number of monitoring time point numbers, according to the formula Calculate the three-phase voltage imbalance VUF of the switch cabinet at each monitoring time point within the set monitoring period i ;

[0077] The line voltages of the AB phase, BC phase, and CA phase at each monitoring time point in the set monitoring period of the switch cabinet are detected to obtain the line voltages of the AB phase, BC phase, and CA phase at each monitoring time point in the set monitoring period of the switch cabinet, and the average values ​​are calculated respectively to obtain the average line voltages of the AB phase, BC phase, and CA phase in the set monitoring period of the switch cabinet, which are recorded as

[0078] According to the formula Calculate the AB phase line voltage deviation value ΔU of the switch cabinet corresponding to the set monitoring period AB , BC phase line voltage deviation value ΔU BC , CA phase line voltage deviation value ΔU CA , U 线 ' represents the set reference line voltage;

[0079] The maximum value is extracted from the AB phase line voltage deviation value, BC phase line voltage deviation value, and CA phase line voltage deviation value of the switch cabinet corresponding to the set monitoring period as the line voltage deviation index of the switch cabinet corresponding to the set monitoring period, which is recorded as E2, that is, E2 = max(ΔU AB ,ΔU BC ,ΔU CA );

[0080] According to the formula Calculate the voltage condition value ω1 of the switch cabinet corresponding to the set monitoring, E1', E2', VUF' respectively represent the set reference phase voltage deviation index, reference line voltage deviation index, reference three-phase voltage imbalance, a1, a2, a3 respectively represent the set influence factors;

[0081] The current sensor is used to detect the phase currents of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet, and the phase currents of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet are obtained. The average values ​​are calculated respectively to obtain the average phase current of phase A, the average phase current of phase B, and the average phase current of phase C in the set monitoring period of the switch cabinet, which are recorded as According to the formula Calculate the A-phase current deviation value ΔI of the switch cabinet corresponding to the set monitoring period A , B phase current deviation value ΔI B , C phase current deviation value ΔI C , I 相 ' represents the set reference phase current;

[0082] The maximum value is extracted from the A-phase current deviation value, B-phase current deviation value, and C-phase current deviation value of the switch cabinet corresponding to the set monitoring period as the phase current deviation index of the switch cabinet corresponding to the set monitoring period, denoted as F1, that is, F1 = max(ΔI A ,ΔI B ,ΔI C ),

[0083] At the same time, the maximum phase current and the minimum phase current are extracted from the phase currents of phase A, phase B, and phase C at each monitoring time point in the corresponding set monitoring period of the switch cabinet, and are recorded as The average phase current of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet is calculated to obtain the average phase current of each monitoring time point in the set monitoring period of the switch cabinet, which is recorded as According to the formula Calculate the three-phase current imbalance VIF of the switch cabinet at each monitoring time point within the set monitoring period i ;

[0084] At the same time, the line currents of the AB phase, BC phase, and CA phase at each monitoring time point in the set monitoring period of the switch cabinet are detected to obtain the line currents of the AB phase, BC phase, and CA phase at each monitoring time point in the set monitoring period of the switch cabinet, and the average values ​​are calculated respectively to obtain the average line currents of the AB phase, BC phase, and CA phase in the set monitoring period of the switch cabinet, which are recorded as

[0085] According to the formula Calculate the AB phase current deviation value ΔI of the switch cabinet corresponding to the set monitoring period AB , BC phase line current deviation value ΔI BC , CA phase line current deviation value ΔI CA , I 线 ' represents the set reference line current;

[0086] The maximum value is extracted from the AB phase line current deviation value, BC phase line current deviation value, and CA phase line current deviation value of the switch cabinet corresponding to the set monitoring period as the line current deviation index of the switch cabinet corresponding to the set monitoring period, which is recorded as F2, that is, F2 = max(ΔI AB ,ΔI BC ,ΔI CA ),

[0087] According to the formula Calculate the flow condition value ω2 of the switch cabinet corresponding to the set monitoring period, F1', F2', VIF' respectively represent the set reference phase current deviation index, reference line current deviation index, reference three-phase current imbalance, a4, a5, a6 respectively represent the set influencing factors;

[0088] According to the public The electrical quality inspection value η of the switch cabinet corresponding to the set monitoring period is calculated, and b1 and b2 are respectively represented as the set weight factors.

[0089] In a specific embodiment, the present invention monitors and analyzes the electrical parameters of the switch cabinet during the corresponding set monitoring period, and thereby analyzes the electrical quality inspection values ​​of the switch cabinet during the corresponding set monitoring period. This can not only fully understand the electrical conditions of each phase of the switch cabinet, but also take into account the electrical relationship between phases, thereby improving the timeliness of the electrical fault analysis of the switch cabinet to a certain extent, and improving the reliability and stability of the switch cabinet to the greatest extent.

[0090] Step 2: Insulation monitoring and analysis: Monitor and analyze the insulation parameters of the switch cabinet corresponding to the set monitoring period to obtain the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period. The specific execution steps are as follows:

[0091] Obtain the insulation area corresponding to the switch cabinet, and arrange the detection points in the insulation area to obtain the detection points of the insulation area corresponding to the switch cabinet; it should be noted that the insulation area corresponding to the switch cabinet includes the main circuit to ground insulation area, the phase insulation area, and the branch insulation area;

[0092] The set monitoring period is divided into various monitoring time points according to the time points, and the last monitoring time point is extracted from each monitoring time point as the target time point;

[0093] The regional image of the switch cabinet insulation area corresponding to the target time point is collected by a camera to obtain the regional image of the switch cabinet insulation area corresponding to the target time point;

[0094] The number of abnormal areas and the area of ​​each abnormal area are extracted from the regional image of the switch cabinet insulation area corresponding to the target time point, and the area of ​​each abnormal area is accumulated and calculated to obtain the total area of ​​the abnormal area. Calculate the insulation value BK, N of the switch cabinet corresponding to the set monitoring period 异 Expressed as the number of abnormal regions, S 异 It is represented as the total area of ​​abnormal region, c1 and c2 respectively represent the set influencing factors; wherein, the abnormal region includes but is not limited to crack region, damaged region, discolored region, and discharge mark region.

[0095] The insulation resistance of each detection point in the insulation area of ​​the switch cabinet corresponding to each monitoring time point in the set monitoring period is tested by an insulation resistance tester, and the insulation resistance of each detection point in the insulation area of ​​the switch cabinet corresponding to each monitoring time point in the set monitoring period is obtained, which is recorded as The insulation resistance of each detection point in the insulation area of ​​the switch cabinet corresponding to the first monitoring time point in the set monitoring period is extracted and recorded as According to the formula Calculate the insulation resistance value ZK of the switch cabinet corresponding to the set monitoring period, R0 represents the set reference insulation resistance, c3, c4, c5 represent the set influence factors respectively;

[0096] The partial discharge sensor is used to detect the discharge amount, discharge frequency, and discharge phase of each detection point in the insulation area of ​​the switch cabinet corresponding to the set monitoring period, and the discharge amount, discharge frequency, and discharge phase of each detection point in the insulation area of ​​the switch cabinet corresponding to the set monitoring period are obtained, which are recorded as FL j , FP j 、FW j , according to the formula Calculate the partial discharge value FK of each detection point in the insulation area of ​​the switch cabinet corresponding to the set monitoring period, FL', FP', FW' respectively represent the set reference discharge amount, reference discharge frequency, reference discharge phase, c6, c7, c8 respectively represent the set influence factors;

[0097] According to the formula The insulation quality inspection value ξ of the switch cabinet corresponding to the set monitoring period is calculated, and d1, d2, and d3 are respectively represented as the set weight factors.

[0098] In a specific embodiment, the present invention can effectively monitor insulation aging, breakage, partial discharge and other problems by monitoring and analyzing the insulation parameters of the switch cabinet during the corresponding set monitoring period, and thereby analyze the insulation quality inspection value of the switch cabinet during the corresponding set monitoring period, and to a certain extent effectively prevent serious faults such as short circuits caused by insulation failure.

[0099] Step 3: Mechanical component analysis: Monitor and analyze the parameters of the mechanical components of the switch cabinet corresponding to the set monitoring period to obtain the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period. The specific execution steps are as follows:

[0100] Obtain each mechanical component in the switch cabinet, and use the sound sensor to detect the number of abnormal sounds and the duration of each abnormal sound of each mechanical component of the switch cabinet corresponding to the set monitoring period, and obtain the number of abnormal sounds and the duration of each abnormal sound of each mechanical component of the switch cabinet corresponding to the set monitoring period, and accumulate and calculate the duration of each abnormality, thereby obtaining the number of abnormal sounds and the total duration of abnormality of each mechanical component of the switch cabinet corresponding to the set monitoring period, which are recorded as N respectively. f 、Tf , according to the formula YX f =N f ×e1+T f ×e2 Calculate the abnormal sound value YX of each mechanical component of the switch cabinet corresponding to the set monitoring period f , f represents the number of each mechanical component, f = 1, 2, ..., g, g represents the total number of mechanical component numbers, e1 and e2 represent the set influence factors respectively;

[0101] It should be noted that the mechanical parts in the switch cabinet include but are not limited to contacts, springs, and shaft pins;

[0102] The contour images of each mechanical component of the switch cabinet corresponding to the set monitoring period are collected by the camera to obtain the contour images of each mechanical component of the switch cabinet corresponding to the set monitoring period, and the wear scar length, wear scar width, and wear scar depth of each mechanical component of the switch cabinet corresponding to the set monitoring period are extracted from them, which are recorded as L f , D f , H f , according to the formula SK f =L f ×e3+D f ×e4+H f ×e5 Calculate the damage value SK of each mechanical component of the switch cabinet corresponding to the set monitoring period f , e3, e4, and e5 represent the set proportional factors respectively;

[0103] According to the formula Calculate the switch cabinet parts quality inspection value corresponding to the set monitoring period e6 and e7 represent the set weight factors respectively.

[0104] In a specific embodiment, the present invention monitors and analyzes the parameters of the mechanical components of the switch cabinet during the set monitoring period, and thereby analyzes the mechanical quality inspection values ​​of the switch cabinet during the set monitoring period, so as to timely capture signs of looseness, wear and deformation of mechanical components, thereby achieving early warning of mechanical component failures, so as to arrange inspections and maintenance in time, and to effectively prevent problems such as poor electrical connections caused by mechanical failures to a certain extent.

[0105] Step 4: Internal environment monitoring: Monitor and analyze the internal environment parameters of the switch cabinet corresponding to the set monitoring period, and obtain the internal ring quality inspection value of the switch cabinet corresponding to the set monitoring period. The specific execution steps are as follows:

[0106] The temperature of each monitoring time point in the set monitoring period inside the switch cabinet is detected by a temperature sensor, and the temperature of each monitoring time point in the set monitoring period inside the switch cabinet is obtained. Each monitoring time point is used as the horizontal coordinate and the temperature is used as the vertical coordinate. A two-dimensional coordinate system of the temperature inside the cabinet is established accordingly, and the temperature of each monitoring time point is plotted on the two-dimensional coordinate system of the temperature by plotting points;

[0107] Set the temperature reference line inside the cabinet, record the points on and above the temperature reference line as abnormal temperature points, and count the number of abnormal temperature points, recorded as N 异温 , calculate the difference between the temperature corresponding to each temperature abnormal point and the temperature corresponding to the temperature reference line inside the cabinet, obtain the temperature deviation corresponding to each temperature abnormal point, and calculate the average value thereof to obtain the mean value of temperature deviation, recorded as WP, take the monitoring time points corresponding to two adjacent temperature abnormal points, and extract the interval duration corresponding to the monitoring time points corresponding to the two adjacent temperature abnormal points, obtain the interval duration corresponding to the two adjacent temperature abnormal points, and at the same time calculate the average value of the interval duration corresponding to all two adjacent temperature abnormal points, obtain the interval average time, recorded as WT;

[0108] According to the formula Calculate the temperature difference WY inside the switch cabinet corresponding to the set monitoring period, where x1, x2, and x3 are respectively represented as the set weight factors;

[0109] The humidity inside the switch cabinet is detected by a humidity sensor at each monitoring time point within the set monitoring period, and the humidity at each detection point inside the switch cabinet corresponding to each monitoring time point within the set monitoring period is obtained. Each monitoring time point is used as the horizontal coordinate and the humidity is used as the vertical coordinate. A two-dimensional coordinate system of the humidity inside the cabinet is established accordingly, and the humidity at each monitoring time point is plotted on the humidity two-dimensional coordinate system by plotting points;

[0110] Set the humidity reference line inside the cabinet, record the points on and above the humidity reference line as abnormal humidity points, and count the number of abnormal humidity points, recorded as N 异湿 , calculate the difference between the humidity corresponding to each humidity abnormal point and the humidity corresponding to the humidity reference line inside the cabinet, obtain the humidity deviation corresponding to each humidity abnormal point, and calculate the average value thereof to obtain the average humidity deviation, recorded as SP, take the monitoring time points corresponding to the two adjacent humidity abnormal points, and extract the interval duration corresponding to the monitoring time points corresponding to the two adjacent humidity abnormal points, obtain the interval duration corresponding to the two adjacent humidity abnormal points, and at the same time calculate the average value of the interval duration corresponding to all the two adjacent humidity abnormal points, obtain the interval average, recorded as ST;

[0111] According to the formula Calculate the humidity abnormality SY inside the switch cabinet corresponding to the set monitoring period, x4, x5, x6 are respectively represented as the set weight factors;

[0112] The dust sensor is used to detect the number of dust particles at each monitoring time point in the corresponding set monitoring period inside the switch cabinet, and the number of dust particles at each monitoring time point in the corresponding set monitoring period inside the switch cabinet is obtained. The number of dust particles at the first monitoring time point and the number of dust particles at the last monitoring time point are extracted, which are recorded as KL 末 , KL 初 , and extract the duration corresponding to the time period between the first monitoring time point and the last monitoring time point, recorded as T;

[0113] According to the formula Calculate the dust accumulation rate V inside the switch cabinet corresponding to the set monitoring period;

[0114] The camera is used to collect images of the switch cabinet body at each monitoring time point within the set monitoring period, and the image of the switch cabinet body at the last monitoring time point within the set monitoring period is extracted from it. The image recognition technology is used to identify and segment the debris in the image, and the number of debris and the volume proportion of each debris at the last monitoring time point within the set monitoring period within the switch cabinet body are obtained. At the same time, the volume proportion of each debris is accumulated and calculated to obtain the total volume proportion of the debris. According to the formula ZW=N 杂物 ×x7+V 杂物 ×x8 Calculate the debris accumulation value ZW, N inside the switch cabinet corresponding to the set monitoring period 杂物 、V 杂物 They are respectively represented by the number of debris and the percentage of debris in the total volume, and x7 and x8 are respectively represented by the set proportional factors;

[0115] According to the formula The inner ring quality inspection value γ of the switch cabinet corresponding to the set monitoring period is calculated, and y1, y2, y3, and y4 are respectively represented as the set weight factors.

[0116] Step 5: Remote diagnosis and analysis: Analyze the maintenance data of the switch cabinet during the set monitoring period based on the electrical quality inspection value, insulation quality inspection value, mechanical quality inspection value and inner ring quality inspection value of the switch cabinet during the set monitoring period, and obtain the maintenance data of the switch cabinet during the set monitoring period. The specific analysis method is as follows:

[0117] The electrical quality inspection value of the switch cabinet corresponding to the set monitoring period is compared with the set reference electrical quality inspection value. If the electrical quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference electrical quality inspection value, the electrical quality inspection value of the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period;

[0118] Compare the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period with the set reference insulation quality inspection value. If the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference insulation quality inspection value, the insulation corresponding to the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period;

[0119] Compare the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period with the set reference mechanical component quality inspection value. If the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference mechanical component quality inspection value, the mechanical component corresponding to the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period;

[0120] The inner ring quality inspection value of the switch cabinet corresponding to the set monitoring period is compared with the set reference inner ring quality inspection value. If the inner ring quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference inner ring quality inspection value, the internal environment corresponding to the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period.

[0121] In a specific embodiment, the present invention can quickly and intuitively reflect the maintenance data of the switch cabinet during the set monitoring period by analyzing the maintenance data of the switch cabinet during the set monitoring period, providing reliable data support for maintenance personnel, avoiding the increase in time cost due to maintenance failures, and making the remote monitoring method of the switch cabinet more practical.

[0122] Step 6: Execution: Execute corresponding operations based on the maintenance data of the switch cabinet corresponding to the set monitoring period.

[0123] In a specific embodiment, if the maintenance data of the switch cabinet corresponding to the set monitoring period is the electrical equipment corresponding to the switch cabinet, a corresponding display will be made on the remote display terminal, for example: "There is a fault in the electrical equipment corresponding to the switch cabinet, and the electrical equipment corresponding to the switch cabinet needs to be repaired in time."

[0124] If the maintenance data of the switch cabinet corresponding to the set monitoring period is the insulation corresponding to the switch cabinet, the corresponding display will be made on the remote display terminal, for example: "The insulation corresponding to the switch cabinet is aging and partially discharged, and the insulation corresponding to the switch cabinet needs to be repaired in time."

[0125] If the maintenance data of the switch cabinet corresponding to the set monitoring period is the mechanical parts corresponding to the switch cabinet, the corresponding display will be made on the remote display terminal, for example: "The mechanical parts corresponding to the switch cabinet are loose, worn, and deformed, and the mechanical parts corresponding to the switch cabinet need to be repaired in time."

[0126] If the maintenance data of the switch cabinet corresponding to the set monitoring period is the internal environment of the switch cabinet, the corresponding display will be made on the remote display terminal, for example: "The internal environment of the switch cabinet is overheated, overhumid, has excessive dust accumulation, and debris accumulation. The internal environment of the switch cabinet needs to be adjusted accordingly in time."

[0127] Embodiment 2:

[0128] See also Figure 2 As shown, a switch cabinet remote monitoring system includes an electrical monitoring and analysis module, an insulation monitoring and analysis module, a mechanical component analysis module, an internal environment monitoring module, a remote diagnosis and analysis module, and an execution terminal.

[0129] The electrical monitoring and analysis module is used to monitor and analyze the electrical parameters of the switch cabinet corresponding to the set monitoring period, and obtain the electrical quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0130] The insulation monitoring and analysis module is used to monitor and analyze the insulation parameters of the switch cabinet corresponding to the set monitoring period, and obtain the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0131] The mechanical component analysis module is used to monitor and analyze the parameters of the mechanical components of the switch cabinet corresponding to the set monitoring period, and obtain the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0132] The internal environment monitoring module is used to monitor and analyze the internal environment parameters of the switch cabinet corresponding to the set monitoring period, and obtain the internal ring quality inspection value of the switch cabinet corresponding to the set monitoring period;

[0133] The remote diagnosis and analysis module is used to analyze the maintenance data of the switch cabinet in the corresponding set monitoring period based on the electrical quality inspection value, insulation quality inspection value, mechanical quality inspection value and inner ring quality inspection value of the switch cabinet in the corresponding set monitoring period, and obtain the maintenance data of the switch cabinet in the corresponding set monitoring period;

[0134] The execution terminal is used to perform corresponding operations based on the maintenance data of the switch cabinet corresponding to the set monitoring period.

[0135] Embodiment 3:

[0136] The difference between this embodiment and Embodiment 1 and Embodiment 2 is that the present invention provides a computer-readable storage medium, which includes a switch cabinet remote monitoring method program, and when the switch cabinet remote monitoring method program is executed by a processor, it implements the steps of any one of the switch cabinet remote monitoring methods.

[0137] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A switch cabinet remote monitoring method, characterized in that: The following steps are involved: Step 1: Electrical monitoring and analysis: monitor and analyze the electrical parameters of the switch cabinet corresponding to the set monitoring period to obtain the electrical quality inspection value of the switch cabinet corresponding to the set monitoring period; Step 2: Insulation monitoring and analysis: monitor and analyze the insulation parameters of the switch cabinet corresponding to the set monitoring period to obtain the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period; Step 3: Mechanical component analysis: monitor and analyze the parameters of the mechanical components of the switch cabinet corresponding to the set monitoring period, and obtain the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period; Step 4: Internal environment monitoring: monitor and analyze the internal environment parameters of the switch cabinet corresponding to the set monitoring period, and obtain the internal ring quality inspection value of the switch cabinet corresponding to the set monitoring period; Step 5: Remote diagnosis and analysis: Analyze the maintenance data of the switch cabinet during the set monitoring period based on the electrical quality inspection value, insulation quality inspection value, mechanical quality inspection value and inner ring quality inspection value of the switch cabinet during the set monitoring period to obtain the maintenance data of the switch cabinet during the set monitoring period; Step 6: Execution: Execute corresponding operations based on the maintenance data of the switch cabinet corresponding to the set monitoring period.

2. A switch cabinet remote monitoring method according to claim 1, characterized in that: The electrical parameters of the switch cabinet corresponding to the set monitoring period are monitored and analyzed, and the specific execution steps are as follows: 101: Get the bus area and bus color corresponding to the switch cabinet. The area with yellow bus color is phase A, the area with green bus color is phase B, and the area with red bus color is phase C. Thus, the three-phase phase corresponding to the switch cabinet is obtained. 102: The phase voltages of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet are detected by a voltage sensor to obtain the phase voltages of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet, and the average values ​​are calculated respectively to obtain the average phase voltage of phase A, the average phase voltage of phase B, and the average phase voltage of phase C in the set monitoring period of the switch cabinet, which are recorded as According to the formula Calculate the A-phase voltage deviation value ΔU of the switch cabinet corresponding to the set monitoring period A , B phase voltage deviation value ΔU B , C phase voltage deviation value ΔU C , U 相 ' represents the set reference phase voltage; 103: extract the maximum value from the A-phase voltage deviation value, the B-phase voltage deviation value, and the C-phase voltage deviation value of the switch cabinet corresponding to the set monitoring period as the phase voltage deviation index of the switch cabinet corresponding to the set monitoring period, recorded as E1; 104: At the same time, the maximum phase voltage and the minimum phase voltage are extracted from the phase voltages of phase A, phase B, and phase C at each monitoring time point in the corresponding set monitoring period of the switch cabinet, and are recorded as The phase voltages of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet are averaged to obtain the average phase voltage at each monitoring time point in the set monitoring period of the switch cabinet, which is recorded as i represents the number of each monitoring time point, i = 1, 2, ..., m, m represents the total number of monitoring time point numbers, according to the formula Calculate the three-phase voltage imbalance VUF of the switch cabinet at each monitoring time point within the set monitoring period i ; 105: Detect the line voltages of the AB phase, BC phase, and CA phase at each monitoring time point in the set monitoring period of the switch cabinet, obtain the line voltages of the AB phase, BC phase, and CA phase at each monitoring time point in the set monitoring period of the switch cabinet, and calculate the average values ​​thereof respectively, and obtain the average line voltages of the AB phase, BC phase, and CA phase in the set monitoring period of the switch cabinet, which are recorded as According to the formula Calculate the AB phase line voltage deviation value ΔU of the switch cabinet corresponding to the set monitoring period AB , BC phase line voltage deviation value ΔU BC , CA phase line voltage deviation value ΔU CA , U 线 ' represents the set reference line voltage; 106: extract the maximum value from the AB phase line voltage deviation value, the BC phase line voltage deviation value, and the CA phase line voltage deviation value of the switch cabinet in the corresponding set monitoring period as the line voltage deviation index of the switch cabinet in the corresponding set monitoring period, recorded as E2; 107: According to the formula Calculate the voltage condition value ω1 of the switch cabinet corresponding to the set monitoring, E1', E2', VUF' respectively represent the set reference phase voltage deviation index, reference line voltage deviation index, reference three-phase voltage imbalance, a1, a2, a3 respectively represent the set influence factors; 108: Detect the phase currents of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet through the current sensor to obtain the phase currents of phase A, phase B, and phase C at each monitoring time point in the set monitoring period of the switch cabinet, and perform the same operation according to steps 102-107 to obtain the phase current deviation index F1 of the switch cabinet corresponding to the set monitoring period, and the three-phase current imbalance degree VIF of the switch cabinet at each monitoring time point in the set monitoring period. i , the switch cabinet corresponds to the line current deviation index F2 of the set monitoring period; 109: According to the formula Calculate the flow condition value ω2 of the switch cabinet corresponding to the set monitoring period, F1', F2', VIF' respectively represent the set reference phase current deviation index, reference line current deviation index, reference three-phase current imbalance, a4, a5, a6 respectively represent the set influencing factors; 110: Obtain the electrical quality inspection value of the switch cabinet corresponding to the set monitoring period through comprehensive analysis.

3. A switch cabinet remote monitoring method according to claim 1, characterized in that: The insulation parameters of the switch cabinet corresponding to the set monitoring period are monitored and analyzed, and the specific execution steps are as follows: Obtain the insulation area corresponding to the switch cabinet, and arrange the detection points in the insulation area to obtain the detection points of the insulation area corresponding to the switch cabinet; The set monitoring period is divided into various monitoring time points according to the time points, and the last monitoring time point is extracted from each monitoring time point as the target time point; The regional image of the switch cabinet insulation area corresponding to the target time point is collected by a camera to obtain the regional image of the switch cabinet insulation area corresponding to the target time point; The number of abnormal areas and the area of ​​each abnormal area are extracted from the regional image of the switch cabinet insulation area corresponding to the target time point, and the area of ​​each abnormal area is accumulated and calculated to obtain the total area of ​​the abnormal area. Calculate the insulation value BK, N of the switch cabinet corresponding to the set monitoring period 异 Expressed as the number of abnormal regions, S 异 It is represented as the total area of ​​abnormal region, c1 and c2 are the set impact factors respectively; The insulation resistance of each detection point in the insulation area of ​​the switch cabinet corresponding to each monitoring time point in the set monitoring period is tested by an insulation resistance tester, and the insulation resistance of each detection point in the insulation area of ​​the switch cabinet corresponding to each monitoring time point in the set monitoring period is obtained, which is recorded as The insulation resistance of each detection point in the insulation area of ​​the switch cabinet corresponding to the first monitoring time point in the set monitoring period is extracted and recorded as According to the formula Calculate the insulation resistance value ZK of the switch cabinet corresponding to the set monitoring period, R0 represents the set reference insulation resistance, c3, c4, c5 represent the set influence factors respectively; The partial discharge sensor is used to detect the discharge amount, discharge frequency, and discharge phase of each detection point in the insulation area of ​​the switch cabinet corresponding to the set monitoring period, and the discharge amount, discharge frequency, and discharge phase of each detection point in the insulation area of ​​the switch cabinet corresponding to the set monitoring period are obtained, which are recorded as FL j , FP j 、FW j , according to the formula Calculate the partial discharge value FK of each detection point in the insulation area of ​​the switch cabinet corresponding to the set monitoring period, FL', FP', FW' respectively represent the set reference discharge amount, reference discharge frequency, reference discharge phase, c6, c7, c8 respectively represent the set influence factors; Through comprehensive analysis, the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period is obtained.

4. A switch cabinet remote monitoring method according to claim 1, characterized in that: The monitoring and analysis of the mechanical component parameters of the switch cabinet corresponding to the set monitoring period is specifically performed in the following steps: Obtain each mechanical component in the switch cabinet, and use the sound sensor to detect the number of abnormal sounds and the duration of each abnormal sound of each mechanical component of the switch cabinet corresponding to the set monitoring period, and obtain the number of abnormal sounds and the duration of each abnormal sound of each mechanical component of the switch cabinet corresponding to the set monitoring period, and accumulate and calculate the duration of each abnormality, thereby obtaining the number of abnormal sounds and the total duration of abnormality of each mechanical component of the switch cabinet corresponding to the set monitoring period, which are recorded as N respectively. f , T f , according to the formula YX f =N f ×e1+T f ×e2 Calculate the abnormal sound value YX of each mechanical component of the switch cabinet corresponding to the set monitoring period f , f represents the number of each mechanical component, f = 1, 2, ..., g, g represents the total number of mechanical component numbers, e1 and e2 represent the set influence factors respectively; The contour images of each mechanical component of the switch cabinet corresponding to the set monitoring period are collected by the camera to obtain the contour images of each mechanical component of the switch cabinet corresponding to the set monitoring period, and the wear scar length, wear scar width, and wear scar depth of each mechanical component of the switch cabinet corresponding to the set monitoring period are extracted from them, which are recorded as L f , D f , H f , according to the formula SK f =L f ×e3+D f ×e4+H f ×e5 Calculate the damage value SK of each mechanical component of the switch cabinet corresponding to the set monitoring period f , e3, e4, and e5 represent the set proportional factors respectively; Through comprehensive analysis, the mechanical quality inspection value of the switch cabinet corresponding to the set monitoring period is obtained.

5. A switch cabinet remote monitoring method according to claim 1, characterized in that: The monitoring and analysis of the inner loop parameters of the switch cabinet corresponding to the set monitoring period is specifically performed in the following steps: 401: Detecting the temperature of the switch cabinet body at each monitoring time point within the set monitoring period by a temperature sensor, obtaining the temperature of the switch cabinet body at each monitoring time point within the set monitoring period, taking each monitoring time point as the abscissa and the temperature as the ordinate, and establishing a two-dimensional coordinate system of the cabinet body internal temperature, and plotting the temperature of each monitoring time point on the temperature two-dimensional coordinate system by plotting points; 402: Set the temperature reference line inside the cabinet, record the points on and above the temperature reference line as abnormal temperature points, and count the number of abnormal temperature points, recorded as N 异温 , calculate the difference between the temperature corresponding to each temperature abnormal point and the temperature corresponding to the temperature reference line inside the cabinet, obtain the temperature deviation corresponding to each temperature abnormal point, and calculate the average value thereof to obtain the mean value of temperature deviation, recorded as WP, take the monitoring time points corresponding to two adjacent temperature abnormal points, and extract the interval duration corresponding to the monitoring time points corresponding to the two adjacent temperature abnormal points, obtain the interval duration corresponding to the two adjacent temperature abnormal points, and at the same time calculate the average value of the interval duration corresponding to all two adjacent temperature abnormal points, obtain the interval average time, recorded as WT; 403: According to the formula Calculate the temperature difference WY inside the switch cabinet corresponding to the set monitoring period, where x1, x2, and x3 are respectively represented as the set weight factors; 404: Detect the humidity of the switch cabinet body at each monitoring time point within the set monitoring period by means of a humidity sensor, and obtain the humidity of each detection point within the switch cabinet body at each monitoring time point within the set monitoring period, and perform the same operation as steps 401-403, thereby obtaining the humidity abnormal value SY within the switch cabinet body corresponding to the set monitoring period; 405: Detect the number of dust particles at each monitoring time point within the set monitoring period inside the switch cabinet by using a dust sensor, obtain the number of dust particles at each monitoring time point within the set monitoring period inside the switch cabinet, and extract the number of dust particles at the first monitoring time point and the number of dust particles at the last monitoring time point, which are recorded as KL respectively. 末 , KL 初 , and extract the duration corresponding to the time period between the first monitoring time point and the last monitoring time point, recorded as T; 406: According to the formula Calculate the dust accumulation rate V inside the switch cabinet corresponding to the set monitoring period; 407: The camera is used to collect images of the switch cabinet body at each monitoring time point within the set monitoring period, and the image of the switch cabinet body at the last monitoring time point within the set monitoring period is extracted from the images. The image recognition technology is used to identify and segment the debris in the image, and the number of debris and the volume ratio of each debris at the last monitoring time point within the set monitoring period within the switch cabinet body are obtained. At the same time, the volume ratio of each debris is accumulated and calculated to obtain the total volume ratio of the debris. According to the formula ZW=N 杂物 ×x7+V 杂物 ×x8 Calculate the debris accumulation value ZW, N inside the switch cabinet corresponding to the set monitoring period 杂物 、V 杂物 They are respectively represented by the number of debris and the percentage of debris in the total volume, and x7 and x8 are respectively represented by the set proportional factors; 408: The inner ring quality inspection value of the switch cabinet corresponding to the set monitoring period is obtained through comprehensive analysis.

6. A switch cabinet remote monitoring method according to claim 1, characterized in that: The maintenance data of the switch cabinet corresponding to the set monitoring period is analyzed in the following specific analysis methods: The electrical quality inspection value of the switch cabinet corresponding to the set monitoring period is compared with the set reference electrical quality inspection value. If the electrical quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference electrical quality inspection value, the electrical quality inspection value of the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period; Compare the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period with the set reference insulation quality inspection value. If the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference insulation quality inspection value, the insulation corresponding to the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period; Compare the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period with the set reference mechanical component quality inspection value. If the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference mechanical component quality inspection value, the mechanical component corresponding to the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period; The inner ring quality inspection value of the switch cabinet corresponding to the set monitoring period is compared with the set reference inner ring quality inspection value. If the inner ring quality inspection value of the switch cabinet corresponding to the set monitoring period is less than the reference inner ring quality inspection value, the internal environment corresponding to the switch cabinet is used as the maintenance data of the switch cabinet corresponding to the set monitoring period.

7. A switch cabinet remote monitoring system, characterized in that: A switch cabinet remote monitoring method applied to implement any one of claims 1 to 6, comprising: The electrical monitoring and analysis module is used to monitor and analyze the electrical parameters of the switch cabinet corresponding to the set monitoring period, and obtain the electrical quality inspection value of the switch cabinet corresponding to the set monitoring period; The insulation monitoring and analysis module is used to monitor and analyze the insulation parameters of the switch cabinet corresponding to the set monitoring period, and obtain the insulation quality inspection value of the switch cabinet corresponding to the set monitoring period; The mechanical component analysis module is used to monitor and analyze the parameters of the mechanical components of the switch cabinet corresponding to the set monitoring period, and obtain the mechanical component quality inspection value of the switch cabinet corresponding to the set monitoring period; The internal environment monitoring module is used to monitor and analyze the internal environment parameters of the switch cabinet corresponding to the set monitoring period, and obtain the internal ring quality inspection value of the switch cabinet corresponding to the set monitoring period; The remote diagnosis and analysis module is used to analyze the maintenance data of the switch cabinet in the corresponding set monitoring period based on the electrical quality inspection value, insulation quality inspection value, mechanical quality inspection value and inner ring quality inspection value of the switch cabinet in the corresponding set monitoring period, and obtain the maintenance data of the switch cabinet in the corresponding set monitoring period; The execution terminal is used to perform corresponding operations based on the maintenance data of the switch cabinet corresponding to the set monitoring period.

8. A computer-readable storage medium, comprising a switch cabinet remote monitoring method program, characterized in that: When the switch cabinet remote monitoring method program is executed by a processor, the steps of the switch cabinet remote monitoring method according to any one of claims 1 to 6 are implemented.

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