Distributed monitoring method and system for operation of power distribution equipment

Abstract

The invention discloses a distributed monitoring method and system for operation of power distribution equipment. The system comprises a voltage acquisition module, a current acquisition module, a partial discharge monitoring module, a contact temperature acquisition module and an edge analysis module which are distributed in the power distribution equipment. The voltage acquisition module is used for acquiring voltage data in a primary loop of the power distribution equipment; the current acquisition module is used for acquiring current data in a primary loop of the power distribution equipment; the partial discharge monitoring module is used for monitoring whether the power distribution equipment has a partial discharge phenomenon or not; the contact temperature acquisition module is used for acquiring temperature data of the contact position of the power distribution equipment; and the edge analysis module is used for analyzing the operation condition of the power distribution equipment according to the voltage data, the current data, whether the partial discharge phenomenon exists or not and / or the temperature data. According to the invention, distributed layout is carried out as required, edge analysis of monitoring data is realized, and the problem of data transmission delay or loss is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of power equipment monitoring, and in particular relates to a distributed monitoring method and system for the operation of power distribution equipment. Background Art

[0002] In modern power distribution systems, with the rapid growth of electricity demand, the power load continues to rise, and the distribution equipment gradually faces aging problems during long-term operation, and its operating pressure is increasing. In order to ensure the safe and stable operation of the power system, it is very important to conduct comprehensive and real-time monitoring and management of distribution equipment. This includes monitoring of power status, monitoring of power quality, tracking of energy consumption, and evaluation of equipment health status, which is conducive to timely detection of potential faults, prevention of accidents, and improvement of power supply reliability.

[0003] In traditional monitoring technology, monitoring equipment is often bulky and has high manufacturing costs. The purchase and maintenance costs of the entire monitoring system are high, which constitutes a considerable economic burden for many users. Most of these devices only have the functions of collecting and uploading raw data, and lack the ability to process and analyze local data. All collected data needs to be transmitted to the background system through the communication network for processing, which not only increases the burden on the communication network, but may also cause data transmission delays or losses. Summary of the invention

[0004] In response to the problems existing in the prior art, the present invention provides a distributed monitoring method and system for the operation of power distribution equipment, which are deployed in a distributed manner as needed to achieve edge analysis of monitoring data and avoid the problem of data transmission delay or loss.

[0005] In order to solve the above technical problems, the present invention is implemented by the following technical solutions: According to a first aspect of the present invention, there is provided a distributed monitoring system for the operation of a power distribution device, comprising a voltage acquisition module, a current acquisition module, a partial discharge monitoring module, a contact temperature acquisition module and an edge analysis module distributedly arranged in the power distribution device; The voltage acquisition module is used to collect voltage data in the primary circuit of the power distribution equipment; The current acquisition module is used to collect current data in the primary circuit of the power distribution equipment; The partial discharge monitoring module is used to monitor whether there is partial discharge phenomenon in the power distribution equipment; The junction temperature acquisition module is used to collect temperature data of the junction position of the power distribution equipment; The edge analysis module is used to analyze the operation status of the power distribution equipment according to the voltage data, the current data, whether there is a partial discharge phenomenon and / or the temperature data.

[0006] In a possible implementation manner of the first aspect, the method further includes: A wireless communication module, wherein the wireless communication module is used to send the operating status of the power distribution equipment to the power distribution system cloud platform.

[0007] In a possible implementation manner of the first aspect, the method further includes: A carrier communication module, wherein the carrier communication module is used to send the operating status of the power distribution equipment to the power distribution system cloud platform.

[0008] In a possible implementation manner of the first aspect, the method further includes: A voltage conversion module is used to provide a millivolt sampling voltage to the voltage acquisition module, the current acquisition module, the junction temperature acquisition module and the junction temperature acquisition module.

[0009] In a possible implementation manner of the first aspect, the analysis of the operation status of the power distribution equipment includes: The electric kilowatt-hour data is calculated according to the voltage data and the current data, and the electric kilowatt-hour data is frozen.

[0010] In a possible implementation manner of the first aspect, the analysis of the operation status of the power distribution equipment includes: When partial discharge occurs, it is analyzed that there is a risk of failure in the power distribution equipment.

[0011] In a possible implementation manner of the first aspect, the analysis of the operation status of the power distribution equipment includes: The temperature data is compared with a preset temperature threshold, and when the temperature exceeds the threshold, it is analyzed that there is a risk of failure of the power distribution equipment.

[0012] According to a second aspect of the present invention, a distributed monitoring method for the operation of a power distribution device is provided, wherein a voltage acquisition module, a current acquisition module, a partial discharge monitoring module, a contact temperature acquisition module and an edge analysis module are distributedly arranged in the power distribution device; The voltage acquisition module acquires voltage data in the primary circuit of the power distribution equipment; The current acquisition module acquires current data in the primary circuit of the power distribution equipment; The partial discharge monitoring module monitors whether there is partial discharge in the power distribution equipment; The junction temperature acquisition module acquires temperature data of the junction position of the power distribution equipment; The edge analysis module analyzes the operation status of the power distribution equipment according to the voltage data, the current data, whether there is a partial discharge phenomenon and / or the temperature data.

[0013] In a possible implementation manner of the second aspect, the analysis of the operation status of the power distribution equipment includes: The electric kilowatt-hour data is calculated according to the voltage data and the current data, and the electric kilowatt-hour data is frozen.

[0014] In a possible implementation manner of the second aspect, the analysis of the operation status of the power distribution equipment includes: When partial discharge occurs, it is analyzed that the power distribution equipment has a risk of failure; The temperature data is compared with a preset temperature threshold, and when the temperature exceeds the threshold, it is analyzed that there is a risk of failure of the power distribution equipment.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: The present invention provides a distributed monitoring system for the operation of a power distribution equipment. Through the various acquisition modules (voltage acquisition module, current acquisition module, partial discharge monitoring module, and contact temperature acquisition module) distributedly arranged in the power distribution equipment, the key operation data of the power distribution equipment can be collected in real time and comprehensively. The introduction of the edge analysis module enables these data to be preliminarily processed and analyzed locally, thereby improving the efficiency and real-time performance of monitoring, so that potential faults can be discovered in time and measures can be taken to effectively prevent accidents. Compared with traditional large-scale monitoring equipment, the distributed monitoring system of the present invention adopts a distributed layout, and each acquisition module can accurately monitor specific parts of the power distribution equipment, without the need to purchase monitoring equipment with bulky volume and redundant functions. In addition, the introduction of the edge analysis module reduces the data transmission burden of the communication network, reduces the communication cost and maintenance cost, and makes the purchase and maintenance cost of the entire system more economical. Most traditional monitoring equipment only has the function of collecting and uploading raw data, and lacks the ability to process and analyze local data. The distributed monitoring system of the present invention can preliminarily process and analyze the collected data locally through the edge analysis module, effectively extract key information, and better adapt to the diversity of modern power distribution systems. By monitoring the operating status of power distribution equipment in real time and performing edge analysis on the collected data, potential faults can be discovered in a timely manner and measures can be taken to intervene, thereby effectively avoiding power outages caused by equipment failures.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the specific implementation modes of the present invention, the drawings required for use in the description of the specific implementation modes will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a distributed monitoring system for power distribution equipment operation according to an embodiment of the present invention; Figure 2 The present invention is a flowchart of a distributed monitoring method for power distribution equipment operation according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0020] Combination Figure 1 As shown, an embodiment of the present invention provides a distributed monitoring system for the operation of distribution equipment, including a voltage acquisition module, a current acquisition module, a partial discharge monitoring module, a contact temperature acquisition module and an edge analysis module distributedly arranged in the distribution equipment. The modules are flexibly and distributedly installed in key positions according to the actual layout and monitoring requirements of the distribution equipment. The purpose is to achieve comprehensive, real-time and efficient monitoring and management of the operating status of the distribution equipment through the distributed arrangement of various functional modules.

[0021] The voltage acquisition module is used to collect voltage data in the primary circuit of the distribution equipment; the current acquisition module is used to collect current data in the primary circuit of the distribution equipment; the partial discharge monitoring module is used to monitor whether there is partial discharge phenomenon in the distribution equipment; the contact temperature acquisition module is used to collect temperature data at the contact position of the distribution equipment; the edge analysis module is used to analyze the operation status of the distribution equipment based on the voltage data, the current data, whether there is partial discharge phenomenon and / or the temperature data.

[0022] Specifically, the voltage acquisition module uses a high-precision voltage sensor that is directly connected to the primary circuit of the power distribution equipment to collect voltage data in real time. The sensor is compact in design and can be easily installed at the input and output ends of power distribution equipment such as switch cabinets and transformers to ensure that the collected voltage data accurately reflects the operating status of the equipment.

[0023] The current acquisition module also uses high-precision current sensors, which are installed on the primary circuit current path of the power distribution equipment, such as busbars, cables, etc., to obtain current data in real time in a non-invasive or invasive manner (such as current transformers).

[0024] The partial discharge monitoring module uses ultrasonic or ultra-high frequency (UHF) detection technology and is installed in areas inside or outside the distribution equipment that are prone to partial discharge, such as insulators, cable joints, etc. The partial discharge monitoring module can capture the weak signals generated by partial discharge and effectively monitor the insulation status of the equipment.

[0025] The contact temperature acquisition module uses infrared temperature measurement or temperature sensors such as thermistors, which are placed close to or near key contacts in the distribution equipment, such as switch contacts, busbar connections, etc., to measure and record temperature changes in real time.

[0026] The edge analysis module is deployed close to the data collection point, such as an embedded computing unit or smart gateway in the power distribution room. The edge analysis module can directly receive data from the above-mentioned collection modules, effectively reducing the burden on the remote background system and reducing the risk of data transmission delay and loss.

[0027] It can be seen that the present invention realizes real-time monitoring and efficient management of the operating status of power distribution equipment by distributing various functional modules and combining edge technology, which not only improves the flexibility of the monitoring system but also reduces the construction and maintenance costs of the system.

[0028] In one achievable manner, the distributed monitoring system for the operation of power distribution equipment further includes: a wireless communication module, wherein the wireless communication module is used to send the operation status of the power distribution equipment to the power distribution system cloud platform.

[0029] Specifically, the wireless communication module adopts an integrated design, which integrates multiple communication modules and protocol stacks to ensure seamless connection with different communication networks. The wireless communication module is connected to each functional module (including voltage acquisition module, current acquisition module, partial discharge monitoring module, contact temperature acquisition module and edge analysis module) through a cascade bus. The cascade bus connection method not only simplifies the system wiring and improves the maintainability of the system, but also ensures the reliability of data transmission between each functional module and between them and the wireless communication module.

[0030] In terms of connection methods, the wireless communication module supports a variety of bus standards, such as RS-485, CAN bus, etc., to meet the needs of different application scenarios. The wireless communication module supports a variety of communication methods and communication protocols to meet the data transmission needs in different network environments. Specifically, the wireless communication module can transmit data through 4G / 5G mobile communication network, Ethernet wired network, RS485 serial communication, LORA low-power wide area network, etc. In terms of communication protocols, the wireless communication module supports a variety of standard communication protocols, including IEC 60870-5-101 (referred to as 101 protocol), IEC 60870-5-104 (referred to as 104 protocol), DL / T 645 (referred to as 645 protocol), Modbus-RTU, Modbus-TCP and LoRaWAN, etc.

[0031] In actual applications, the working process of the wireless communication module is as follows: first, each functional module sends the collected distribution equipment operation data to the edge analysis module for preprocessing and analysis; then, the edge analysis module sends the processed data to the wireless communication module through the cascade bus; then, the wireless communication module encapsulates the data packet and sends it to the distribution system cloud platform according to the preset communication method and communication protocol; finally, the distribution system cloud platform receives and parses the data packet, and conducts real-time monitoring and analysis of the operation status of the distribution equipment.

[0032] This implementation achieves remote data transmission and centralized management of the distributed monitoring system for power distribution equipment operation by introducing a wireless communication module.

[0033] In one implementable manner, the distributed monitoring system for the operation of power distribution equipment further includes: a carrier communication module, wherein the carrier communication module is used to send the operation status of the power distribution equipment to the power distribution system cloud platform.

[0034] Specifically, the carrier communication module uses power lines as the transmission medium and loads the data on the operation of the distribution equipment into the power lines in the form of high-frequency signals for transmission. This communication method does not require the laying of additional communication lines and is suitable for scenes with complex on-site communication conditions and poor communication conditions. It only needs to use the existing power network to complete the remote transmission of data, thereby greatly reducing the construction difficulty and cost. During the data transmission process, the carrier communication module first receives the distribution equipment operation data from the edge analysis module or the wireless communication module (if the system is also equipped with a wireless communication module). Then, the modem inside the carrier communication module converts the digital signal into a high-frequency analog signal suitable for power line transmission and sends it out through the power line.

[0035] The carrier communication module can achieve stable and reliable data transmission in complex power line environments. It can ensure data integrity even when there is noise, attenuation and interference in the power line. Since there is no need to lay additional communication lines, the carrier communication module can reduce the construction cost of the system. The installation of the carrier communication module is very simple, just connect it to the power line. There is no need for complex wiring work, which greatly shortens the construction period and difficulty.

[0036] The carrier communication module is suitable for power distribution equipment monitoring systems that require remote data transmission. This is especially true in scenarios where construction is difficult, costs are limited, or communication lines are difficult to lay. For example, in the renovation and upgrade of old power distribution systems, the carrier communication module can be used to achieve remote data transmission without making large-scale changes to the original lines.

[0037] The carrier communication module can be seamlessly integrated with other functional modules in the system (such as voltage acquisition module, current acquisition module, partial discharge monitoring module, contact temperature acquisition module, edge analysis module and wireless communication module). Through a unified communication interface and protocol, efficient data exchange and collaborative work can be achieved between modules.

[0038] In summary, this implementation further enhances the communication capability of the distributed monitoring system for power distribution equipment operation by introducing a carrier communication module.

[0039] In one achievable manner, the distributed monitoring system for operation of power distribution equipment further includes: a voltage conversion module, which is used to provide millivolt sampling voltage to the voltage acquisition module, the current acquisition module, the junction temperature acquisition module and the junction temperature acquisition module.

[0040] Specifically, the main function of the voltage conversion module is to convert the AC voltage of AC380V (or other rated voltage) into a millivolt (mV) sampling voltage for use by the voltage acquisition module, current acquisition module, and contact temperature acquisition module.

[0041] It should be understood that the voltage conversion module contains components such as transformers, rectifiers, filters and voltage regulators. First, the AC380V AC voltage is stepped down by the transformer to reduce the voltage to a range suitable for subsequent circuit processing. Next, the rectifier converts the stepped-down AC voltage into a DC voltage to eliminate the influence of the AC component on the sampling accuracy. Then, the filter further smoothes the DC voltage to remove the ripple and noise. Finally, the voltage regulator ensures the stability of the output voltage to meet the requirements of each acquisition module for millivolt sampling voltage.

[0042] Preferably, the voltage conversion module also has a voltage transient recording function. When the voltage is too low, too high, or the harmonic content is too high, the first 4 and last 8 cycles will be retained for storage, and the time and cause of the fault will be stored.

[0043] In one achievable manner, the power distribution equipment operation status analysis includes: calculating electricity data based on the voltage data and the current data, and freezing the electricity data.

[0044] Specifically, the calculation of electricity data is based on voltage data and current data, and the energy consumption is calculated through a specific algorithm (such as an integral algorithm). The voltage acquisition module and the current acquisition module respectively obtain the voltage and current signals of the distribution equipment, and perform pre-processing operations such as filtering and calibration on the collected voltage and current data to ensure the accuracy of the data. Using the pre-processed voltage and current data, the energy consumption is calculated through an integral algorithm. It should be understood that in this process, factors such as the phase relationship between voltage and current, power factor, harmonic content, etc. need to be considered to ensure the accuracy of the electricity calculation.

[0045] Freezing electricity data allows the system to lock and save electricity data at a specific time point or time period for subsequent analysis and report generation. Specifically, freezing electricity data mainly includes: (1) Daily freezing: At the end of each day (such as midnight), the electricity data of the day is automatically frozen and saved. (2) Monthly freezing: At the end of each month (such as the last day of the month), the electricity data of the month is automatically frozen and saved. (3) Scheduled freezing: You can set a specific time point or time period to freeze and save the electricity data at these time points or time periods.

[0046] This implementation further enhances the energy consumption monitoring and analysis capabilities of the distributed monitoring system for power distribution equipment operation by introducing the electricity data calculation and freezing functions, providing users with more accurate and reliable electricity consumption data.

[0047] In one achievable manner, the analysis of the operation status of the power distribution equipment includes: when a partial discharge phenomenon exists, analyzing that the power distribution equipment has a failure risk.

[0048] It should be understood that partial discharge is a common precursor to failure in power distribution equipment. Timely and accurate identification and analysis of partial discharge phenomena are critical to preventing equipment failures and ensuring stable operation of power systems. Partial discharge refers to a small-scale discharge phenomenon caused by uneven electric field distribution or defects in insulating materials inside high-voltage electrical equipment, which causes the electric field strength in a local area to exceed the breakdown strength of the insulating material. Partial discharge usually manifests itself as a short current pulse or voltage fluctuation. Although its energy is small, its long-term existence will cause cumulative damage to the insulating material, ultimately leading to equipment failure.

[0049] Once partial discharge is detected, all relevant data detected by the partial discharge are collected, including discharge intensity, discharge frequency, discharge location, etc. The collected data are analyzed to identify the discharge mode, determine the discharge type (such as surface discharge, internal discharge, etc.) and evaluate its impact on the insulation of the equipment. Based on the data analysis results, the failure risk of the distribution equipment is evaluated.

[0050] Preferably, according to the risk assessment result, a warning or alarm message is issued to the user, prompting the user to take necessary maintenance measures or replace the equipment. This embodiment enhances the fault warning and diagnosis capabilities of the distributed monitoring system for distribution equipment operation by introducing partial discharge phenomenon and fault risk analysis function.

[0051] In one achievable manner, the operating condition analysis of the power distribution equipment includes: comparing the temperature data with a preset temperature threshold, and when the temperature threshold is exceeded, analyzing that there is a risk of failure of the power distribution equipment.

[0052] In other words, temperature is one of the key parameters that reflect the operating status of the power distribution equipment. By monitoring the temperature data of the power distribution equipment in real time and comparing it with the preset temperature threshold, abnormal conditions such as equipment overheating can be discovered in time, thereby analyzing the failure risks of the power distribution equipment.

[0053] It should be noted that the following factors need to be considered when setting the temperature threshold: (1) Equipment type and specification: Different types of power distribution equipment (such as transformers, switchgear, capacitors, etc.) and different specifications of the same type of equipment may have different temperature ranges during normal operation. (2) Environmental conditions: Ambient temperature, humidity and other conditions will also affect the temperature of the power distribution equipment. For example, in a high temperature environment, the temperature of the equipment may naturally rise. (3) Historical data: By analyzing the historical temperature data of the equipment, we can understand the temperature change trend and normal fluctuation range of the equipment, so as to set a more reasonable temperature threshold.

[0054] Combination Figure 2 As shown, an embodiment of the present invention provides a distributed monitoring method for the operation of a power distribution device, in which a voltage acquisition module, a current acquisition module, a partial discharge monitoring module, a contact temperature acquisition module and an edge analysis module are distributedly arranged in the power distribution device. The voltage acquisition module acquires voltage data in the primary circuit of the power distribution device; the current acquisition module acquires current data in the primary circuit of the power distribution device; the partial discharge monitoring module monitors whether there is a partial discharge phenomenon in the power distribution device; the contact temperature acquisition module acquires temperature data at the contact position of the power distribution device; and the edge analysis module analyzes the operation of the power distribution device according to the voltage data, the current data, whether there is a partial discharge phenomenon and / or the temperature data.

[0055] Specifically, the voltage acquisition module is responsible for collecting voltage data in the primary circuit of the power distribution equipment. The voltage acquisition module is connected to the primary circuit through a high-precision voltage transformer, converting the high voltage into a low voltage signal, and then converting the analog signal into a digital signal through an analog-to-digital converter (A / D converter).

[0056] The current acquisition module is used to collect current data in the primary circuit of the power distribution equipment. The current acquisition module is also connected to the primary circuit through a current transformer, converting large current into a small current signal, and then converting it into a digital signal through an A / D converter. The partial discharge monitoring module is used to monitor whether there is partial discharge in the power distribution equipment.

[0057] Partial discharge is one of the early signs of insulation damage in power equipment. If it is not discovered and handled in time, it may lead to further deterioration of the insulation performance of the equipment and even cause equipment failure. The partial discharge monitoring module captures the discharge signal through the partial discharge sensor installed inside the equipment.

[0058] The contact temperature acquisition module is responsible for collecting temperature data at the contact position of the power distribution equipment. Since the contact is prone to heat due to poor contact, oxidation and other reasons, the contact temperature is monitored to prevent equipment overheating, burning and other failures. The contact temperature acquisition module collects temperature data through a temperature sensor installed near the contact.

[0059] The edge analysis module receives data from the voltage acquisition module, current acquisition module, partial discharge monitoring module and contact temperature acquisition module, and performs comprehensive analysis. The analysis content includes but is not limited to voltage fluctuation, current imbalance, partial discharge, abnormal contact temperature, etc.

[0060] The distributed monitoring method for the operation of distribution equipment in this embodiment realizes comprehensive monitoring of the operating status of the distribution equipment by distributing multiple acquisition modules and edge analysis modules.

[0061] In one possible implementation, the operation status analysis of the power distribution equipment includes: Calculating the electric kilowatt-hour data according to the voltage data and the current data, and freezing the electric kilowatt-hour data; When partial discharge occurs, it is analyzed that the power distribution equipment has a risk of failure; The temperature data is compared with a preset temperature threshold, and when the temperature exceeds the threshold, it is analyzed that there is a risk of failure of the power distribution equipment.

[0062] Specifically, partial discharge is one of the early signs of reduced insulation performance of distribution equipment. The partial discharge monitoring module can be used to monitor in real time whether there is partial discharge in the distribution equipment. When partial discharge is detected, the discharge intensity, discharge type, and discharge location are judged to analyze whether there is a risk of failure in the distribution equipment. Temperature data is another important indicator that reflects the operating status of distribution equipment. The contact temperature acquisition module can monitor the temperature data of the distribution equipment contact in real time, and compare these temperature data with the preset temperature threshold. When the temperature exceeds the threshold, it is considered that the distribution equipment is at risk of overheating, and then the distribution equipment is analyzed to be at risk of failure.

[0063] In one embodiment, the risk factors of the power distribution system include two categories: one is the small disturbance type that causes the voltage and current to fluctuate within an acceptable range, such as fluctuations in distributed power sources and loads; the other is the large disturbance that may cause voltage and frequency fluctuations and instability, posing a threat to the transient stability of the system, such as equipment failure.

[0064] For example, the load loss probability may be determined by:

[0065] in, The system is in state i The probability of a given normal voltage and current range is that when the measured voltage and current are not within the normal range, it is a state i ; S It is the complete set of system states that cannot meet the load demand.

[0066] Exemplarily, the power shortage expectation value may be determined by:

[0067] in, is in state i The load reduction under the given voltage normal range, when the voltage is lower than the normal voltage range, (current voltage - normal minimum voltage) * current current is the load reduction.

[0068] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0069] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A distributed monitoring system for power distribution equipment operation, characterized in that: It includes a voltage acquisition module, a current acquisition module, a partial discharge monitoring module, a contact temperature acquisition module and an edge analysis module distributed in the power distribution equipment; The voltage acquisition module is used to collect voltage data in the primary circuit of the power distribution equipment; The current acquisition module is used to collect current data in the primary circuit of the power distribution equipment; The partial discharge monitoring module is used to monitor whether there is partial discharge phenomenon in the power distribution equipment; The junction temperature acquisition module is used to collect temperature data of the junction position of the power distribution equipment; The edge analysis module is used to analyze the operation status of the power distribution equipment according to the voltage data, the current data, whether there is a partial discharge phenomenon and / or the temperature data.

2. A distributed monitoring system for power distribution equipment operation according to claim 1, characterized in that: Also includes: A wireless communication module, wherein the wireless communication module is used to send the operating status of the power distribution equipment to the power distribution system cloud platform.

3. A distributed monitoring system for power distribution equipment operation according to claim 2, characterized in that: Also includes: A carrier communication module, wherein the carrier communication module is used to send the operating status of the power distribution equipment to the power distribution system cloud platform.

4. A distributed monitoring system for power distribution equipment operation according to claim 1, characterized in that: Also includes: A voltage conversion module is used to provide a millivolt sampling voltage to the voltage acquisition module, the current acquisition module, the junction temperature acquisition module and the junction temperature acquisition module.

5. A distributed monitoring system for power distribution equipment operation according to claim 1, characterized in that: The analysis of the operation status of the power distribution equipment includes: The electric kilowatt-hour data is calculated according to the voltage data and the current data, and the electric kilowatt-hour data is frozen.

6. A distributed monitoring system for power distribution equipment operation according to claim 1, characterized in that: The analysis of the operation status of the power distribution equipment includes: When partial discharge occurs, it is analyzed that there is a risk of failure in the power distribution equipment.

7. A distributed monitoring system for power distribution equipment operation according to claim 1, characterized in that: The analysis of the operation status of the power distribution equipment includes: The temperature data is compared with a preset temperature threshold, and when the temperature exceeds the threshold, it is analyzed that there is a risk of failure of the power distribution equipment.

8. A distributed monitoring method for power distribution equipment operation, characterized in that: Distributedly arrange voltage acquisition modules, current acquisition modules, partial discharge monitoring modules, contact temperature acquisition modules and edge analysis modules in the power distribution equipment; The voltage acquisition module acquires voltage data in the primary circuit of the power distribution equipment; The current acquisition module acquires current data in the primary circuit of the power distribution equipment; The partial discharge monitoring module monitors whether there is partial discharge in the power distribution equipment; The junction temperature acquisition module acquires temperature data of the junction position of the power distribution equipment; The edge analysis module analyzes the operation status of the power distribution equipment according to the voltage data, the current data, whether there is a partial discharge phenomenon and / or the temperature data.

9. A distributed monitoring method for power distribution equipment operation according to claim 8, characterized in that: The analysis of the operation status of the power distribution equipment includes: The electric kilowatt-hour data is calculated according to the voltage data and the current data, and the electric kilowatt-hour data is frozen.

10. A distributed monitoring method for power distribution equipment operation according to claim 8, characterized in that: The analysis of the operation status of the power distribution equipment includes: When partial discharge occurs, it is analyzed that the power distribution equipment has a risk of failure; The temperature data is compared with a preset temperature threshold, and when the temperature exceeds the threshold, it is analyzed that there is a risk of failure of the power distribution equipment.

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