Power grid load monitoring system

Abstract

The invention discloses a power grid load monitoring system, which comprises a data acquisition module, a data processing module, a communication transmission module, a data analysis module and a range setting module, the output end of the data acquisition module is connected with a data processing module, the data processing module is used for data verification and correction, the acquired data is preprocessed through the data processing module, and the output end of the data processing module is connected with a communication transmission module. According to the power grid load monitoring system, the data acquisition module can collect real-time power data through a sensor and an intelligent electric meter, current, voltage and power data in a transformer substation, a power distribution cabinet and a line are collected, and the data processing module is used for verifying and correcting the collected data, so that the reliability of the data is improved; the problem that the processing time and the calculation burden are increased due to analysis and calculation after conveying is reduced, the overall efficiency and stability are improved, and the safety of the system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to power grid load monitoring, and in particular to a power grid load monitoring system. Background Art

[0002] The power grid load monitoring system helps optimize power distribution and improve system stability by monitoring power load in real time. However, the existing power grid load monitoring system still has certain defects when used, such as; During use, the measuring point of the monitoring device is only set on the power grid side, and the collected power information is transmitted to other devices in the system through local communication. Other devices transmit the received data together with their own data to the server, and then obtain the power information of the load. This method is not conducive to remote management, and only monitors the power consumption information on the load side. In addition, the system function is not convenient to expand and adjust, which is not conducive to users to access and set local data of the monitoring device; In order to overcome the above defects, prior art 1 (Chinese patent with application number 201210000714.3 and application date 2012-01-04) is a smart grid power quality monitoring system, including a power quality monitoring system master station, a power quality monitoring terminal and other power information systems, the power quality monitoring system master station, the power quality monitoring terminal and other power information systems are connected to the power communication network through a local area network, and the power quality monitoring terminal is installed at the access point of various loads and power sources of the smart grid; the power quality monitoring terminal includes a transmission module, a data acquisition module, a management module, a data processing and analysis module and a GPS time reference module, The transmission module, data acquisition module, management module, data processing and analysis module are connected in sequence, and the connection interface is a bus interface or a differential interface. The GPS time reference module is connected to the management module through an internal bus. The data acquisition module is composed of a data acquisition DSP and a dual-port ARM, the management module is composed of a management DSP module and a dual-port RAM, and the data processing and analysis module is composed of an embedded ETX, a communication interface and a display and printing interface. The access points of various loads and power sources include traditional power access points, distributed power access points, sensitive load access points, pollution source load access points and special power demand user access points; There is also prior art 2 (Chinese patent with application number 202110480271.1 and application date 2021-04-30), a load monitoring method and system for a power generation system, which can collect current signals through a mutual inductor and can be easily connected to the system; the load monitoring device has a remote communication function and can complete data communication without the help of other equipment in the system; the local communication function of the load monitoring device can simultaneously obtain the power data of the grid side, inverter side, and load side of the photovoltaic power generation system; the high-precision metering chip of the load monitoring device can synchronously obtain the inverter side and grid side data; And prior art 3 (Chinese patent with application number 202110702724.0 and application date 2021-06-24) A power grid security monitoring system, including a remote background server, a regional server and a node monitoring base station, the node monitoring base station is installed at the power grid node, and is used to monitor the security parameters of the power grid node. Multiple node monitoring base stations are communicatively connected to the regional server to transmit monitoring data to the regional server. The regional server is communicatively connected to the remote background server, and is used to obtain the security status of the power grid node after performing data analysis on the monitoring data transmitted by the node monitoring module, and transmit the acquired monitoring data and security status to the remote background server. The remote background server is used to record the monitoring data and security status of the power grid node and issue fault alarms.

[0003] Although the existing technology can perform remote monitoring, during the working process, the monitored data is transmitted and processed. However, since the original data may contain noise and errors, the transmitted data needs to be calculated and filtered more in the subsequent analysis stage, which increases the computing burden and processing time of the system, and occupies more storage space, increasing the complexity of system maintenance, thereby affecting the accuracy of data analysis, affecting the efficiency and stability of the power grid, and the unprocessed data may have safety hazards, affecting the overall safety of the system.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original power grid load monitoring system. Therefore, we proposed a power grid load monitoring system that can solve the above problems well. Summary of the invention

[0005] The purpose of the present invention is to provide a power grid load monitoring system to solve the problem proposed in the above background technology that the monitored data in the current market is transmitted and processed, but because the original data may contain noise and errors, the transmitted data needs to be calculated and filtered more in the subsequent analysis stage, which increases the calculation burden and processing time of the system, and occupies more storage space, increases the complexity of system maintenance, thereby affecting the accuracy of data analysis, affecting the efficiency and stability of the power grid, and the unprocessed data may have safety hazards, affecting the overall safety of the system.

[0006] To achieve the above object, the present invention provides the following technical solutions: a power grid load monitoring system, comprising a data acquisition module, a data processing module, a communication transmission module, a data analysis module and a range setting module; The output end of the data acquisition module is connected to a data processing module, and the data processing module includes: data verification and correction, and the collected data is pre-processed by the data processing module.

[0007] Preferably, the output end of the data processing module is connected to a communication transmission module, and the communication transmission module performs transmission via a wired or wireless network.

[0008] Preferably, the output end of the communication transmission module is connected to a data analysis module, and the output end of the data analysis module is connected to a range setting module.

[0009] Preferably, the data acquisition module includes: a substation, a distribution cabinet and a line, and sensors are provided on the substation, the distribution cabinet and the line.

[0010] Preferably, the data analysis module includes: a data receiving unit, an analysis unit, a data prediction unit and predictive maintenance.

[0011] Preferably, the output end of the data receiving unit is connected to an analysis unit, the output end of the analysis unit is connected to a data prediction unit, and the output end of the data prediction unit is connected to predictive maintenance.

[0012] Preferably, the output end of the range setting module is connected to a data storage module, and the data storage module includes: a memory and a pan-tilt storage.

[0013] Preferably, the output end of the data storage module is connected to a data display module, and the data display module includes: a PC end and a mobile end.

[0014] Preferably, the specific method flow is as follows: S1: The data acquisition module can collect real-time power data through sensors and smart meters, and collect current, voltage and power data inside substations, distribution cabinets and lines; S2: The data processing module verifies and corrects the collected data, and uses the communication transmission module to transmit the data to the data analysis module; S3: The data analysis module receives the pre-processed data through the data receiving unit, processes the data through the analysis unit, and performs predictive maintenance according to the data prediction unit to improve the overall safety of electricity use; S4: The range setting module is used to set the range of the analyzed data, which facilitates the later monitoring according to the set range and improves the stability of the overall monitoring; S5: Store the collected and processed data in the data storage module, and store the data through the cooperation of the memory and the PTZ storage, so as to facilitate the later viewing and calling; S6: The stored data can be displayed through the data display module, and users can view it through PC and mobile terminals.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the data acquisition module of the power grid load monitoring system can collect real-time power data through sensors and smart meters, collect current, voltage and power data inside the substation, distribution cabinet and line, and use the data processing module to verify and correct the collected data to improve the reliability of the data, reduce the problem of increased processing time and calculation burden caused by analysis and calculation after transmission, improve the overall efficiency and stability, and improve the security of the system. The specific contents are as follows: (1) The collected data is verified and corrected through the data processing module, which not only reduces the problem of increased processing time and computing burden caused by analysis and calculation after transmission, but also improves the overall efficiency and stability, and improves the security of the system; (2) The data center receives the pre-processed data through the data receiving unit of the data analysis module, calculates the data through the calculation module, and protects the transmission of the power grid based on predictive maintenance, reduces the occurrence of overcurrent, overvoltage, islanding and DC, and improves the overall safety of electricity use; (3) Make judgments based on the current data unit, predicted data unit and past data unit data, and set the range of the analyzed data to facilitate later monitoring according to the set range and improve the stability of the overall monitoring; (4) The data is stored through the cooperation of the memory and the PTZ storage. The set memory compresses and stores the past data, which is not only convenient for later decompression and viewing and calling, but also reduces the problem of inconvenience caused by excessive memory usage, ensuring stable operation of the system; (5) Users can access the interface through mobile devices, which can provide energy-saving suggestions. Based on the user's electricity consumption data, the mobile device can provide personalized energy-saving suggestions and improvement measures, greatly improving the practicality of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the system structure of the present invention; Figure 2 The data analysis flow chart of the present invention is as follows; Figure 3 This is a schematic diagram of a data acquisition module of the present invention; Figure 4 This is a connection diagram of the data acquisition module of the present invention; Figure 5 This is a schematic diagram of a data analysis module of the present invention; Figure 6 This is a schematic diagram of a data storage module of the present invention; Figure 7 This is a schematic diagram of a data display module of the present invention; Figure 8This is a schematic diagram of the PC terminal of the present invention; Fig. 9 It is a schematic diagram of a mobile terminal of the present invention; Fig.10 This is a schematic diagram of the mobile terminal home page of the present invention.

[0017] In the figure: 1. Data acquisition module; 101. Substation; 102. Distribution cabinet; 103. Line; 2. Data processing module; 3. Communication transmission module; 4. Data analysis module; 401. Data receiving unit; 402. Analysis unit; 403. Data prediction unit; 404. Predictive maintenance; 5. Range setting module; 6. Data storage module; 601. Memory; 602. PTZ storage; 7. Data display module; 701. PC terminal; 702. Mobile terminal. DETAILED DESCRIPTION

[0018] 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. Embodiment 1:

[0019] A power grid load monitoring system includes a data acquisition module 1, a data processing module 2, a communication transmission module 3, a data analysis module 4 and a range setting module 5. The output end of the data acquisition module 1 is connected to the data processing module 2. The data processing module 2 includes: data verification and correction. The collected data is pre-processed by the data processing module 2. The output end of the data processing module 2 is connected to the communication transmission module 3. The communication transmission module 3 transmits through a wired or wireless network. The output end of the communication transmission module 3 is connected to the data analysis module 4. The output end of the data analysis module 4 is connected to the range setting module 5. The data acquisition module 1 includes: a substation 101, a distribution cabinet 102 and a line 103. The substation 101, the distribution cabinet 102 The data processing module 2 is used to check and correct the collected data, so as to improve the reliability of the data and reduce the time spent in analysis and calculation after transmission. The problem of increased processing time and computing burden is solved, the overall efficiency and stability are improved, and the security of the system is improved. The communication transmission module 3 transmits the collected data to the central control system through a wired or wireless network to ensure that the data reaches the data center safely and accurately during the transmission process. The data center receives the pre-processed data through the data receiving unit 401 of the data analysis module 4, processes the data through the analysis unit 402, calculates the data through the calculation module, and calculates the current data unit, the predicted data unit and the past data unit, and makes a judgment based on the data prediction unit 403, predicts the data trend, data failure and the later access and outgoing power grid data, and maintains the data according to the predictive maintenance 404. Protect the transmission of the power grid, reduce the occurrence of overcurrent, overvoltage, islanding and DC, improve the overall safety of electricity use, make judgments based on the current data unit, predicted data unit and past data unit data, set the range of the analyzed data through the analyzed data, and facilitate later monitoring according to the set range to improve the stability of the overall monitoring. The set range will be updated and recorded in real time according to the power grid monitoring system, and then the collected data will be quickly compared through the set range. When the range is judged to be normal, the overall data will be displayed, and the data will be transmitted and stored. If it exceeds the set range, it will be judged as abnormal, thereby issuing an alarm to prompt the monitoring personnel and providing processing suggestions to facilitate maintenance personnel to quickly process. Embodiment 2:

[0020] The output end of the range setting module 5 is connected to a data storage module 6, which includes: a memory 601 and a pan-tilt storage 602. The output end of the data storage module 6 is connected to a data display module 7, which includes: a PC terminal 701 and a mobile terminal 702. The data is transmitted through the data acquisition module 1, the data processing module 2, the communication transmission module 3 and the data analysis module 4, and the data storage module 6 is used to store the data information. The data is stored through the cooperation of the memory 601 and the pan-tilt storage 602. The set memory 601 compresses and stores the past data, which is not only convenient for later viewing and calling after decompression, but also reduces the problem of inconvenience caused by excessive memory usage. The stored data can be displayed through the data display module 7, and the user can view it through the PC terminal 701 and the mobile terminal 702. The operator can use the login module to log in to PC The C terminal 701 uses a secure network and identity authentication to log in to ensure the security of the overall data. The monitoring panel of the PC terminal 701 can monitor the power grid load of a single household and a region, and display historical data, real-time data and predicted data through icon display and model display, which is convenient for operators to monitor and access and ensure stable operation of the system. Users can access the interface through the mobile terminal 702 and log in through the login module. They can use account identification, identity identification or verification code identification to log in, which is convenient for viewing the household's electricity consumption on the operation panel. The overall monitoring system can transmit early warning information to the mobile terminal 702 through the communication transmission module 3. Users can also understand the past power grid load situation through historical viewing, and the mobile terminal 702 can give energy-saving suggestions. According to the user's electricity consumption data, it provides personalized energy-saving suggestions and improvement measures to greatly improve the practicality of the overall system. Embodiment three:

[0021] A power grid load monitoring system, the specific method flow is as follows: S1: The data acquisition module 1 can collect real-time power data through sensors and smart meters, and collect current, voltage and power data inside the substation 101, the distribution cabinet 102 and the line 103; S2: The data processing module 2 verifies and corrects the collected data, and uses the communication transmission module 3 to transmit the data to the data analysis module 4; S3: The data analysis module 4 receives the pre-processed data through the data receiving unit 401, processes the data through the analysis unit 402, and performs predictive maintenance 404 according to the data prediction unit 403 to improve the overall safety of electricity use; S4: The analyzed data is range-set through the range setting module 5, so as to facilitate the later monitoring according to the set range and improve the stability of the overall monitoring; S5: The collected and processed data is stored in the data storage module 6, and the data is stored through the cooperation of the memory 601 and the PTZ storage 602, so as to facilitate the later viewing and calling; S6: The stored data can be displayed through the data display module 7, and the user can view it through the PC terminal 701 and the mobile terminal 702.

[0022] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power grid load monitoring system, comprising a data acquisition module (1), a data processing module (2), a communication transmission module (3), a data analysis module (4) and a range setting module (5); It is characterized in that Also includes: The output end of the data acquisition module (1) is connected to a data processing module (2), and the data processing module (2) comprises: data verification and correction, and the collected data is pre-processed by the data processing module (2).

2. A power grid load monitoring system according to claim 1, characterized in that: The output end of the data processing module (2) is connected to a communication transmission module (3), and the communication transmission module (3) performs transmission via a wired or wireless network.

3. A power grid load monitoring system according to claim 2, characterized in that: The output end of the communication transmission module (3) is connected to a data analysis module (4), and the output end of the data analysis module (4) is connected to a range setting module (5).

4. A power grid load monitoring system according to claim 1, characterized in that: The data acquisition module (1) comprises: a substation (101), a power distribution cabinet (102) and a line (103), wherein sensors are arranged on the substation (101), the power distribution cabinet (102) and the line (103).

5. A power grid load monitoring system according to claim 2, characterized in that: The data analysis module (4) comprises: a data receiving unit (401), an analysis unit (402), a data prediction unit (403) and predictive maintenance (404).

6. A power grid load monitoring system according to claim 5, characterized in that: The output end of the data receiving unit (401) is connected to the analysis unit (402), the output end of the analysis unit (402) is connected to the data prediction unit (403), and the output end of the data prediction unit (403) is connected to the predictive maintenance (404).

7. A power grid load monitoring system according to claim 3, characterized in that: The output end of the range setting module (5) is connected to a data storage module (6), and the data storage module (6) comprises: a memory (601) and a pan / tilt storage (602).

8. A power grid load monitoring system according to claim 7, characterized in that: The output end of the data storage module (6) is connected to a data display module (7), and the data display module (7) comprises: a PC end (701) and a mobile end (702).

9. A power grid load monitoring system according to claim 1, characterized in that: The specific method flow is as follows: S1: the data acquisition module (1) can collect real-time power data through sensors and smart meters, and collect current, voltage and power data inside the substation (101), the distribution cabinet (102) and the line (103); S2: The data processing module (2) verifies and corrects the collected data, and uses the communication transmission module (3) to transmit the data to the data analysis module (4); S3: The data analysis module (4) receives the pre-processed data through the data receiving unit (401), processes the data through the analysis unit (402), and performs predictive maintenance (404) according to the data prediction unit (403), thereby improving the overall safety of electricity use; S4: The range setting module (5) is used to set the range of the analyzed data, so as to facilitate the subsequent monitoring according to the set range and improve the stability of the overall monitoring; S5: storing the collected and processed data in the data storage module (6), and storing the data through the cooperation of the memory (601) and the pan / tilt storage (602), so as to facilitate later viewing and calling; S6: The stored data can be displayed through the data display module (7), and the user can view it through the PC terminal (701) and the mobile terminal (702).

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