CN114859783A - Data monitoring method and system for box-type substation - Google Patents

Abstract

The invention belongs to the technical field of power equipment monitoring systems, and particularly relates to a data monitoring method and a data monitoring system of a box-type substation, which comprise an acquisition module, a data processing module and a monitoring platform; the acquisition module is used for acquiring comprehensive parameters of the power transformer in the box-type substation; the data processing module receives the comprehensive parameters acquired by the acquisition module, analyzes the comprehensive parameters to obtain abnormal parameters of the power transformer, generates a data packet and sends the data packet to the monitoring platform; and the monitoring platform analyzes the received data packet, matches the received data packet with the fault diagnosis application case to generate a matching result, and remotely controls the power transformer and sends out an early warning signal according to the matching result and a corresponding preset instruction. The invention carries out early warning on each parameter of the box-type transformer substation by collecting the comprehensive parameters of the power transformer in the box-type transformer substation and combining with a fault diagnosis application case with practicability.

Description

Data monitoring method and system for box-type substation

Technical Field

The invention belongs to the technical field of power equipment monitoring systems, and particularly relates to a data monitoring method and system for a box-type substation.

Background

The box-type transformer substation is also called as an outdoor complete transformer substation and is also called as a combined transformer substation, is novel transformer equipment developed in developed countries in western countries such as Europe and America in the 20 th century, 60 s to 70 s, and is characterized by flexible combination, convenient transportation, migration and installation, short construction period, low operating cost, no pollution and no maintenance, and is valued by electric power workers in various countries in the world. In China, the box-type substation has the advantages of small occupied area, short construction period and low cost compared with the traditional civil substation, is more and more widely applied to urban construction, and becomes important terminal equipment in an urban power system. The box-type substation also has the problems of tight and short internal structure, unattended operation, change of operating environment in the substation and the like, and if the power system in the box-type substation cannot be effectively monitored in real time, huge economic and social losses are caused once a fault occurs.

In the prior art, an online monitoring system of a box-type substation is designed and developed in 2013 in Yang of Tianjin university, online sampling of voltage, current, frequency and temperature of a power grid is realized by using a voltage transformer, a current transformer and a self-built frequency sampling circuit, digital-to-analog conversion is realized through high-speed AD (analog-to-digital) conversion, and sampling control and parameter analysis are realized in a way of combining CPLD (complex programmable logic device), APM (advanced programmable logic module) and DSP (digital signal processor), but the system is lack of monitoring of the environment and the state of the transformer, and meanwhile, the verified measurement range is narrow, and a certain distance is provided from practical application; an embedded power quality detection system is proposed and designed in 2012 in Li Xiang forest of Nanjing postal telecommunication university, an ARM processor is used for controlling and collecting the electrical characteristics of a power grid, power quality information is analyzed, remote data transmission is realized through a Zigbee wireless sensor network, practical application verification is combined, and the embedded power quality detection system has strong applicability, but the embedded power quality detection system does not provide tests and corresponding diagnosis for other parameters influencing power grid equipment; in addition, the key technology of intelligent monitoring of a distribution transformer is researched in 2013 by North China Power university, a system design scheme and a verification result are provided, the system adopts a voltage transformer and a current transformer to perform original sampling on electric energy information, PT100 is used as an oil temperature monitoring sensor, the electric energy information and the temperature information are fused and transmitted to a data center server through a GPRS wireless technology, the system realizes comprehensive analysis of electric quantity and non-electric quantity, and has high practicability and applicability, but the system is uniform in parameter analysis of the non-electric quantity of a transformer substation, and the temperature data is insufficient to reflect all characteristics of transformer operation.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a data monitoring method and system for a box-type substation, and the method and system are used for early warning each parameter of the box-type substation by collecting the comprehensive parameters of a power transformer in the box-type substation and combining a fault diagnosis application case with practicability.

The invention provides a basic scheme I: the data monitoring system of the box-type substation comprises an acquisition module, a data processing module and a monitoring platform;

the acquisition module is used for acquiring comprehensive parameters of the power transformer in the box-type substation;

the data processing module stores the threshold values of all the comprehensive parameters of the power transformer, analyzes the comprehensive parameters collected by the collecting module to obtain abnormal parameters of the power transformer, generates a data packet and sends the data packet to the monitoring platform;

the monitoring platform stores fault diagnosis application cases, performs data analysis on received data packets, matches the data packets with the fault diagnosis application cases to generate matching results, and performs remote control on the power transformer and sends out early warning signals according to the matching results and corresponding preset instructions;

the acquisition module comprises a temperature and humidity sensor and an electric quantity acquisition module, wherein the temperature and humidity sensor is used for detecting the temperature and the humidity in the box-type substation and the temperature of a transformer core; the electric quantity acquisition module is used for detecting electric parameters and remote signaling quantity in the incoming line loop.

The principle and the advantages of the first basic scheme of the invention are as follows: the comprehensive parameters of the box-type transformer substation are collected through the collection module, the data processing module analyzes the comprehensive parameters to generate a data packet, the collected comprehensive parameters comprise temperature and humidity and various electric parameters, real-time and accurate electric parameter data are guaranteed, meanwhile, fault diagnosis application cases are automatically matched after fault problems are detected through the fault diagnosis application cases stored in the monitoring platform, circuits are disconnected in a remote control mode according to solutions in the cases, and loss expansion is prevented. Therefore, the invention has the advantage that the early warning is carried out on each parameter of the box-type substation by collecting the comprehensive parameters of the power transformer in the box-type substation and combining with the practical fault diagnosis application case.

Furthermore, the electric quantity acquisition module comprises a multifunctional network instrument and a feeder line measuring instrument, the multifunctional network instrument is used for detecting electric parameters in the incoming line loop, the electric parameters comprise voltage, current, active power, reactive power, frequency factor and four-quadrant electricity, and the feeder line measuring instrument is used for acquiring current parameters and switch position information of the feeder line loop.

Has the advantages that: the operating load state and the switch position of each feeder line in the box-type substation and the electrical parameters of the incoming line loop can be intuitively known.

Furthermore, the data processing module is provided with a digital quantity input module, an analog quantity input module and a serial communication module, wherein the digital quantity input module is used for preventing interference generated by an external circuit; the analog quantity input module is used for receiving data of the electric parameters, and the serial communication module is used for carrying out data communication with the multifunctional network instrument and the feeder line measuring instrument.

Has the advantages that: through the digital quantity input module, the analog quantity input module and the serial communication module, the influence of external interference on a circuit can be avoided, and electric parameter data are received and data communication is carried out.

Furthermore, the monitoring platform is provided with a storage module, the storage module is electrically connected with the data processing module, and the storage module is used for storing a real-time database and a historical database.

Has the advantages that: and an operation manager positioned on the monitoring platform can view the real-time data and the historical data in the storage module.

The monitoring platform further comprises an alarm device, the alarm device is electrically connected with the data processing module and comprises an electric leakage alarm device and an operation fault alarm device, the electric leakage alarm device is used for receiving the matching result, identifying whether the leakage current in the loop exceeds the safety warning or not, and if the leakage current in the loop exceeds the safety warning, giving an alarm; if the leakage current in the loop does not exceed the safety guard, no response is made; the operation fault alarm device is used for real-time monitoring and displacement alarm of the state of a high-voltage switch in the box-type substation.

Has the advantages that: the electricity leakage alarm device can improve the electricity utilization safety index of the loop, and the operation fault alarm device can enable a user to respond to fault alarm in time, so that the fault recovery time is shortened.

Further, still include wireless 4G communication module, wireless 4G communication module is connected with the data processing module electricity, the data processing module transmits the data package for monitoring platform through wireless 4G communication module.

Has the advantages that: box-type transformer substations in cities are distributed scattered, the difficulty is high in actual construction by adopting optical fibers as transmission media, the excavation of civil engineering is not ideal, and the trouble can be avoided by selecting 4G wireless communication modules.

Further, still include the humiture regulation and control device, the humiture regulation and control device includes fan and heater, the fan is used for adjusting the inside temperature of box-type substation, the heater is used for regulating and controlling the inside humidity of box-type substation.

Has the advantages that: and a stable working environment is provided for components on the back of the box-type substation, so that the service life of internal components and safe operation indexes are prolonged.

The invention provides a second basic scheme: the data monitoring method of the box-type substation comprises the following steps:

s1: collecting comprehensive parameters of a power transformer in a box type transformer substation;

wherein, the step S1 further includes:

s1-1: detecting the temperature and the humidity inside the box-type transformer substation and the temperature of a transformer core by using a temperature and humidity sensor;

s1-2: detecting an electric parameter in the incoming line loop and a remote signaling quantity of the incoming line loop by using an electric quantity acquisition module;

s2: storing the threshold values of all the comprehensive parameters of the power transformer, analyzing the comprehensive parameters in S1 to obtain abnormal parameters, generating a data packet, and sending the data packet to a monitoring platform through a wireless 4G communication module;

s3: and storing the fault diagnosis application case, performing data analysis on the received data packet, matching the received data packet with the fault diagnosis application case to generate a matching result, and performing remote control on the power transformer and sending an early warning signal according to the matching result and a corresponding preset instruction.

The second basic scheme has the beneficial effects that: the comprehensive parameters of the box-type transformer substation are collected and analyzed according to the comprehensive parameters to generate a data packet, wherein the collected comprehensive parameters comprise temperature, humidity and the like sensed temperatures and various electric parameters, real-time and accurate electric parameter data are guaranteed, meanwhile, fault diagnosis application cases are automatically matched after fault problems are detected through the fault diagnosis application cases stored in the monitoring platform, and circuits are disconnected in a remote control mode according to solutions in the cases to prevent loss expansion. Therefore, the invention has the advantage that the early warning is carried out on each parameter of the box-type substation by collecting the comprehensive parameters of the power transformer in the box-type substation and combining with the practical fault diagnosis application case.

Further, the S1-2 includes:

s1-2-1: detecting electric parameters such as voltage, current, active power, reactive power, frequency factor, four-quadrant electricity and the like in an incoming line loop by using a multifunctional network instrument;

s1-2-2: and the feeder line measuring instrument is used for acquiring the current parameter and the switch position information of the feeder line loop.

Has the advantages that: the operating load state and the switch position of each feeder line in the box-type substation and the electrical parameters of the incoming line loop can be intuitively known.

Further, the S3 includes:

s3-1: using a leakage alarm device to receive the matching result, identifying whether the leakage current in the loop exceeds a safety alert, and if the leakage current in the loop exceeds the safety alert, sending an alarm; if the leakage current in the loop does not exceed the safety guard, no response is made;

s3-2: the operation fault alarm device is used for monitoring the state of a high-voltage switch in the box-type substation in real time and giving an alarm when the high-voltage switch is shifted;

s3-3: and storing the real-time database and the historical database by using a storage module.

Has the advantages that: the electricity leakage alarm device can improve the electricity utilization safety index of a loop, the operation fault alarm device can enable a user to respond to fault alarm in time, the fault recovery time is shortened, and operation management personnel located on a monitoring platform can check real-time data and historical data in the storage module.

Drawings

FIG. 1 is a schematic block diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a DC 24V input circuit of the digital input module according to an embodiment of the present invention;

fig. 3 is a schematic diagram of the connection of the analog input module to the current sensor according to the embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

the reference numbers in the drawings of the specification include: the system comprises an electric quantity acquisition module 101, a multifunctional network meter 102, a feeder line measuring meter 103, a temperature and humidity sensor 104, a data processing module 105, a serial communication module 106, an analog quantity input module 107, a digital quantity input module 108, a wireless 4G communication module 109, a heater 110, a fan 111, an electric leakage alarm device 112, a storage module 113, an operation fault alarm device 114, an acquisition module 115 and a monitoring platform 116.

The embodiment is basically as shown in the attached figure 1: the data monitoring system of the box-type substation comprises an acquisition module 115, a data processing module 105 and a monitoring platform 116, wherein the acquisition module 115 is used for acquiring comprehensive parameters of a power transformer in the box-type substation, and the comprehensive parameters comprise voltage, current, active power, reactive power, frequency factors, four-quadrant electricity, temperature, humidity and remote communication quantity; the acquisition module 115 comprises a temperature and humidity sensor 104 and an electric quantity acquisition module 101, the temperature and humidity sensor 104 is used for detecting the temperature and the humidity inside the box-type substation and the temperature of a transformer core, meanwhile, a temperature and humidity regulation device is arranged inside the box-type substation, the temperature and humidity regulation device comprises a fan 111 and a heater 110, the fan 111 is used for regulating the humidity index inside the box-type substation, the heater 110 is used for regulating the temperature index inside the box-type substation, and a stable working environment is provided for internal components of the box-type substation, so that the service life of the internal components and the safe operation index are prolonged; the electric quantity acquisition module 101 is used for detecting electric parameters and remote signalling quantity in an incoming line loop, specifically, the electric quantity acquisition module 101 comprises a multifunctional network instrument 102 and a feeder line measuring instrument 103, the multifunctional network instrument 102 is used for detecting the electric parameters in the incoming line loop, the electric parameters comprise voltage, current, active power, reactive power, frequency factor and four-quadrant electricity, the feeder line measuring instrument 103 is used for acquiring the current parameters and switch position information of the feeder line loop, the detection of the remote signalling quantity in the incoming line loop comprises an incoming line knife switch, a breaker position, a breaker fault and the like, and the detection is specifically carried out through remote measurement.

The data processing module 105 stores the threshold values of the comprehensive parameters of the power transformer, and the data processing module 105 receives the comprehensive parameters acquired by the acquisition module 115, analyzes the comprehensive parameters to obtain the abnormal parameters of the power transformer, generates a data packet and sends the data packet to the monitoring platform 116. In this embodiment, the data processor is a PLC processor, the PLC processor is an M340 series of schneider, the specific model is BMXP3420302H, the processor has 1 EtherNET port with an independent IP address and 1 Modbus port, and supports the EtherNET/IP industrial EtherNET protocol, the equipment of the box transformer should perform data and information interaction with the monitoring platform 116, so that an operation manager at the monitoring center can master the operating state of the box transformer in real time, and it can be known through analyzing the distribution of the urban transformers that the box transformers are distributed more dispersedly, and it is difficult to use optical fibers as transmission media in actual construction, and it is not ideal to excavate civil engineering, so that the data processor communicates with the monitoring platform 116 through the wireless 4G communication module 109, and the equipment data is directly transmitted to the monitoring platform 116 through wireless.

The data processing module 105 is provided with a digital quantity input module 108, an analog quantity input module 107 and a serial communication module 106, wherein the digital quantity input module 108 is used for preventing the abnormal work of the module and even the damage of components caused by the interference generated by an external line, the interference comprises peak voltage and noise interference, and therefore, the electrical connection between an internal line and the external line is cut off by adopting an optical coupler at the input side of the digital quantity input module 108; then, in order to prevent the influence of error signals caused by jitter of input points or external interference pulses on program operation, an RC filter is arranged in an internal circuit, the jitter time of the input signals is set through software, generally a plurality of microseconds, and the input signals are effective only when the holding time of the input signals is greater than the jitter time, so that the error signals are filtered and eliminated from two aspects of software/hardware; in this embodiment, the digital input module 108 adopts a 24V input circuit, as shown in fig. 2, fig. 2 is a schematic circuit diagram of a 16-point 24VDC type switching value input module, which can access 16 switching value signals, and in addition, 8-point and 32-point modules are provided, which can be flexibly selected according to the number of external signals, and the specific operation flow is that when the switch of an external circuit in the diagram is closed, the electric quantity of a light emitting diode of an optical coupler in the module is saturated and conducted, and a phototriode is switched on and then transmitted to a processor, so that the data processor considers that the circuit has signal input; when the external circuit switch is switched off, the light emitting diode in the optocoupler is turned off, the phototriode is cut off, and the data processor considers that the circuit has no signal.

The analog input module 107 is used for receiving data of the electrical parameter, and common analog signals mainly include direct current signals and direct voltage signals, the direct current signals include 4-20mA, 0-20mA and the like, and the direct voltage signals include 1-5V, 0-10V and the like. An analog input module 107 is configured for the data processor to acquire various analog signals, and different signal types have different wiring modes and need to be set on software. The analog quantity signals of the box-type substation monitoring system mainly comprise voltage signals, current signals and temperature and humidity signals, and the signal types are all direct current 4-20 mA. Specifically, a current type sensor is taken as an example, the current type sensor is divided into a 2-wire system, a 3-wire system and a 4-wire system, the wiring modes are different, for example, fig. 3 is a wiring schematic diagram of an 8-channel analog quantity input module 107 connected to the current type sensor, for example, as shown in fig. 3, 1-4 channels are respectively connected to a 2-wire system current output type sensor, and 2 cables are used for providing a 24VDC power supply for the sensor by the module and outputting a current signal to the module by the sensor; the 5-8# channel is respectively connected with a 4-wire system current output type sensor, 2 cables are used for supplying power to the sensor, and the other 2 cables are used for outputting current signals to the module by the sensor; if the current output type sensor is 3-wire system, the negative electrode of the power supply and the negative electrode of the signal are short-circuited with reference to the connection method of the 4-wire system sensor. The analog input module 107 transmits the acquired signal current value to the data processing module 105, the data processing module 105 linearly converts the current value into an engineering value of a corresponding sensor, for example, the measuring range of the oxygen sensor is 0-30%, the output signal is 4-20mA, and if the current signal acquired by the analog input module 107 is 16mA, the data processor can obtain the oxygen concentration of 22.5% through linear conversion.

The serial communication module 106 is used for carrying out data communication with the multifunctional instrument and the feeder line measuring instrument 103, and can also carry out remote control on a line, specifically, one serial communication module 106 is provided with 2 9-pin D-type serial communication interfaces, supports three communication modes of RS485, RS422 and RS232, can freely control the communication function of the RS485 communication module by writing programs, and is suitable for various communication protocols.

The monitoring platform 116 stores a fault diagnosis application case, the monitoring platform 116 performs data analysis on a received data packet, the received data packet is matched with the fault diagnosis application case to generate a matching result, the monitoring platform 116 performs remote control on the power transformer and sends out an early warning signal according to the matching result and a corresponding preset instruction, the monitoring platform 116 comprises a storage module 113 and an alarm device, the storage module 113 and the alarm device are electrically connected with the data processing module 105, the storage module 113 is used for storing a real-time database and a historical database, an operation manager positioned on the monitoring platform 116 can check the real-time data and the historical data from the storage module 113, the alarm device comprises an electric leakage alarm device 112 and an operation fault alarm device 114, the electric leakage alarm device 112 identifies whether leakage current in a loop exceeds a safety warning or not according to the matching result of the received data processor, if the leakage current in the loop exceeds the safety guard, an alarm is given; if the leakage current in the loop does not exceed the safety guard, no response is made, in this embodiment, if the leakage current exceeds 300mA in one circuit, a fire may be triggered, so the leakage current safety guard of the single loop is 300 mA. The operation fault alarm device 114 is used for real-time monitoring and displacement alarm of a high-voltage on state inside the box-type substation, specifically, the real-time monitoring of the state of the high-voltage switch is used for monitoring tripping, misoperation faults, insulation faults of the high-voltage switch inside the box-type substation and ineffectiveness faults caused by external factors, and the faults caused by the external factors include external force impact, natural disasters and accidental faults; the displacement alarm is generated according to implementation monitoring data monitored by the high-voltage switch. The alarm information of the alarm device comprises information such as fault alarm generation date and time, station number, loop name and alarm content, and the alarm range includes real-time monitoring, fault alarm and displacement alarm of a high-low voltage main circuit breaker, alarm of internal temperature abnormity of a box-type substation and phase loss and unbalance alarm of operating voltage.

The data monitoring method of the box-type substation is characterized in that: the method comprises the following steps:

s1: collecting comprehensive parameters of a power transformer in a box type transformer substation;

wherein, the step S1 further includes:

s1-1: detecting the temperature and the humidity inside the box-type substation and the temperature of a transformer core by using a temperature and humidity sensor 104;

s1-2: detecting an electric parameter in the incoming line loop and a remote signaling quantity of the incoming line loop by using an electric quantity acquisition module 101;

s1-2-1: detecting electric parameters such as voltage, current, active power, reactive power, frequency factor, four-quadrant electricity and the like in an incoming line loop by using the multifunctional network instrument 102;

s1-2-2: the feeder line measuring instrument 103 is used for collecting current parameters and switch position information of a feeder line loop;

s2: storing the threshold values of all the comprehensive parameters of the power transformer, analyzing the comprehensive parameters in S1 to obtain abnormal parameters, generating a data packet, and sending the data packet to the monitoring platform 116 through the wireless 4G communication module 109;

s3: and storing the fault diagnosis application case, performing data analysis on the received data packet, matching the received data packet with the fault diagnosis application case to generate a matching result, and performing remote control on the power transformer and sending an early warning signal according to the matching result and a corresponding preset instruction.

Wherein the S3 includes:

s3-1: receiving the matching result by using the leakage alarm device 112, identifying whether the leakage current in the loop exceeds a safety guard, and if the leakage current in the loop exceeds the safety guard, giving an alarm; if the leakage current in the loop does not exceed the safety guard, no response is made;

s3-2: the operation fault alarm device 114 is used for carrying out real-time monitoring and displacement alarm on the state of a high-voltage switch inside the box-type substation;

s3-3: the real-time database and the historical database are stored using the storage module 113.

The foregoing are merely exemplary embodiments of the present invention, and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. Data monitoring system of box-type substation, its characterized in that: the system comprises an acquisition module, a data processing module and a monitoring platform;

the acquisition module is used for acquiring comprehensive parameters of the power transformer in the box-type substation;

the data processing module stores the threshold values of all the comprehensive parameters of the power transformer, analyzes the comprehensive parameters collected by the collecting module to obtain abnormal parameters of the power transformer, generates a data packet and sends the data packet to the monitoring platform;

the monitoring platform stores fault diagnosis application cases, performs data analysis on received data packets, matches the data packets with the fault diagnosis application cases to generate matching results, and performs remote control on the power transformer and sends out early warning signals according to the matching results and corresponding preset instructions;

the acquisition module comprises a temperature and humidity sensor and an electric quantity acquisition module, wherein the temperature and humidity sensor is used for detecting the temperature and the humidity in the box-type substation and the temperature of a transformer core; the electric quantity acquisition module is used for detecting electric parameters and remote signaling quantity in the incoming line loop.

2. The data monitoring system of a box-type substation according to claim 1, characterized in that: the electric quantity acquisition module comprises a multifunctional network instrument and a feeder line measuring instrument, the multifunctional network instrument is used for detecting electric parameters in an incoming line loop, the electric parameters comprise voltage, current, active power, reactive power, frequency factor and four-quadrant electricity, and the feeder line measuring instrument is used for acquiring current parameters and switch position information of the feeder line loop.

3. The data monitoring system of a box-type substation according to claim 2, characterized in that: the data processing module is provided with a digital quantity input module, an analog quantity input module and a serial communication module, and the digital quantity input module is used for preventing interference generated by an external circuit; the analog quantity input module is used for receiving data of the electric parameters, and the serial communication module is used for carrying out data communication with the multifunctional network instrument and the feeder line measuring instrument.

4. The data monitoring system of a box-type substation according to claim 1, characterized in that: the monitoring platform is provided with a storage module, the storage module is electrically connected with the data processing module, and the storage module is used for storing a real-time database and a historical database.

5. The data monitoring system of a box-type substation according to claim 1, characterized in that: the monitoring platform further comprises an alarm device, the alarm device is electrically connected with the data processing module and comprises an electric leakage alarm device and an operation fault alarm device, the electric leakage alarm device is used for receiving the matching result, identifying whether the leakage current in the loop exceeds the safety warning or not, and if the leakage current in the loop exceeds the safety warning, giving an alarm; if the leakage current in the loop does not exceed the safety guard, no response is made; the operation fault alarm device is used for real-time monitoring and displacement alarm of the state of a high-voltage switch in the box-type substation.

6. The data monitoring system of a box-type substation according to claim 1, characterized in that: still include wireless 4G communication module, wireless 4G communication module is connected with the data processing module electricity, the data processing module transmits the data package for monitoring platform through wireless 4G communication module.

7. The data monitoring system of a box substation according to claim 6, characterized in that: the temperature and humidity control device comprises a fan and a heater, the fan is used for adjusting the humidity inside the box-type substation, and the heater is used for adjusting the temperature inside the box-type substation.

8. The data monitoring method of the box-type substation is characterized in that: the method comprises the following steps:

s1: collecting comprehensive parameters of a power transformer in a box type transformer substation;

wherein, the step S1 further includes:

s1-1: detecting the temperature and the humidity inside the box-type transformer substation and the temperature of a transformer core by using a temperature and humidity sensor;

s1-2: detecting an electric parameter in the incoming line loop and a remote signaling quantity of the incoming line loop by using an electric quantity acquisition module;

s2: storing the threshold values of all the comprehensive parameters of the power transformer, analyzing the comprehensive parameters of the power transformer in the box-type substation collected in S1 to obtain abnormal parameters, generating a data packet, and sending the data packet to a monitoring platform through a wireless 4G communication module;

s3: and storing the fault diagnosis application case, performing data analysis on the received data packet, matching the received data packet with the fault diagnosis application case to generate a matching result, and performing remote control on the power transformer and sending an early warning signal according to the matching result and a corresponding preset instruction.

9. The data monitoring method of a box-type substation according to claim 8, characterized in that: the S1-2 comprises:

s1-2-1: detecting electrical parameters in an incoming line loop by using a multifunctional network instrument, wherein the electrical parameters comprise voltage, current, active power, reactive power, frequency factor and four-quadrant electricity;

s1-2-2: and the feeder line measuring instrument is used for acquiring the current parameter and the switch position information of the feeder line loop.

10. The data monitoring method of a box-type substation according to claim 8, characterized in that: s3-1: using a leakage alarm device to receive the matching result, identifying whether the leakage current in the loop exceeds a safety alert, and if the leakage current in the loop exceeds the safety alert, sending an alarm; if the leakage current in the loop does not exceed the safety guard, no response is made;

s3-2: the operation fault alarm device is used for monitoring the state of a high-voltage switch in the box-type substation in real time and giving an alarm when the high-voltage switch is shifted;

s3-3: and storing the real-time database and the historical database by using a storage module.

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