CN104319901A - Data processing method and system for power distribution network - Google Patents

Abstract

The invention discloses a data processing method and system for a distribution network. Among them, the data processing system of a distribution network includes: a baseband subsystem, used to generate instructions for collecting distribution network data; an intermediate radio frequency subsystem, connected to the baseband subsystem, used to modulate to the distribution network The command sent, and demodulates the response signal received from the distribution network to respond to the command; the antenna feeder subsystem is connected with the RF subsystem to send commands to the distribution network through the 4G wireless network, and through the 4G The wireless network receives the response signal; and the whole machine subsystem is connected with the baseband subsystem for data processing on the response signal. Through the present invention, the problem of unstable data transmission of the distribution network is solved, and the effect of stable data transmission of the distribution network is achieved.

Description

Data processing method and system for distribution network

technical field

The invention relates to the field of electric power, in particular to a data processing method and system for a power distribution network.

Background technique

The power distribution operation business has the characteristics of complex wiring, wide distribution, many communication points, poor working environment of communication equipment, small information volume of a single communication point (only a few hundred bauds), but a very large amount of information in the basic database, so all The use of optical fiber communication technology to meet the communication needs of distribution network operation business has great difficulties both in terms of economy and engineering implementation.

With the development of system applications such as distribution network management, distribution automation, substation integrated automation, load management system, power consumption business management system, and demand-side management for power consumption, how to use the shortest construction period and lower cost Establish a practical, reliable, real-time, wide-coverage, and flexible distribution network data business transmission system that can adapt to the complex grid structure and demand characteristics of the distribution network to meet the needs of all aspects of the distribution network for information transmission. It has become a key issue in the construction of distribution network management information system.

The data of the existing distribution network usually uses optical fiber, 3G network or narrow-band private network, but the laying of optical fiber is difficult and easily damaged; although 3G network can solve the problem of laying difficulty of optical fiber, it cannot guarantee the data of distribution network. Security issues; Narrowband private network can solve data security issues, but data transmission is not stable, unable to guarantee timely transmission of grid data.

Aiming at the problem of unstable data transmission in the distribution network in the prior art, no effective solution has been proposed yet.

Contents of the invention

The main purpose of the present invention is to provide a data processing method and system for a distribution network to solve the problem of unstable data transmission in the distribution network.

In order to achieve the above object, according to an aspect of the embodiments of the present invention, a data processing system for a power distribution network is provided. The data processing system of the distribution network according to the present invention includes: a baseband subsystem, used to generate instructions for collecting distribution network data; an intermediate radio frequency subsystem, connected to the baseband subsystem, used for modulation to power distribution The instruction sent by the network, and demodulate the response signal received from the distribution network for responding to the instruction; the antenna feeder subsystem, the intermediate radio frequency subsystem is connected, and is used to send to the network through the 4G wireless network The distribution network sends the instruction, and receives the response signal through the 4G wireless network; and the complete machine subsystem, connected to the baseband subsystem, is used to perform data processing on the response signal.

Further, the baseband subsystem further includes a transmission interface, configured to send the instruction to the intermediate radio frequency subsystem through the transmission interface.

Further, the intermediate radio frequency subsystem is also used for conversion among baseband signals, intermediate frequency signals and radio frequency signals.

Further, the antenna feeder subsystem includes: an antenna, connected to the intermediate radio frequency subsystem, for sending the instruction or receiving the response signal; a feeder, connected to the intermediate radio frequency subsystem, for Before the antenna sends the instruction, the instruction is sent to the antenna by the intermediate radio frequency subsystem, or, after the antenna receives the response signal, the response signal is sent by the antenna sent to the IF subsystem.

In order to achieve the above purpose, according to another aspect of the embodiments of the present invention, a data processing method for a power distribution network is provided. The data processing method of the distribution network according to the present invention includes: generating an instruction for collecting distribution network data; controlling the instruction sent to the distribution network; sending the instruction to the distribution network through a 4G wireless network; receiving a response signal from the distribution network for responding to the instruction through the 4G wireless network, wherein the response signal carries the distribution network data; and performing data processing on the distribution network data .

Further, the instruction includes a detection instruction of the operating state of the distribution network, and sending the instruction to the distribution network through a 4G wireless network includes: sending the instruction to the distribution network through the 4G wireless network. An instruction for detecting the operating state of the distribution network; receiving a response signal from the distribution network through the 4G wireless network for responding to the instruction includes: receiving a user from the distribution network through the 4G wireless network A response signal to a detection command in response to the operating state of the distribution network.

Further, the data processing of the distribution network data includes: judging whether the response signal used to respond to the detection instruction of the operation state of the distribution network indicates that the distribution network is abnormal; if it is judged that the response signal If the abnormal operation of the distribution network is prompted, a warning of abnormal operation of the distribution network is issued.

Further, the instruction includes a fault location instruction of the distribution network, and sending the instruction to the distribution network through a 4G wireless network includes: sending the fault location instruction to the distribution network through a 4G wireless network; Receiving a response signal from the distribution network for responding to the instruction through a 4G wireless network includes: receiving a response signal from the distribution network for responding to the fault location instruction through a 4G wireless network.

Further, after receiving a response signal from the distribution network for responding to a fault location instruction through the 4G wireless network, the method further includes: obtaining location information of the distribution network fault through a geographic positioning system; The location information is received via the 4G wireless network.

According to the embodiment of the invention, the baseband subsystem is used to generate instructions for collecting distribution network data; the intermediate radio frequency subsystem is connected to the baseband subsystem, used to modulate instructions sent to the distribution network, and demodulate and receive The response signal from the distribution network for responding to the instruction; the antenna feeder subsystem is connected with the intermediate radio frequency subsystem, and is used to send instructions to the distribution network through the 4G wireless network and receive the response signal through the 4G wireless network; and the whole The machine subsystem is connected with the baseband subsystem and is used for data processing of the response signal, which solves the problem of unstable data transmission in the distribution network and achieves the effect of stable transmission of data in the distribution network.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 is a schematic diagram of a data processing system of a power distribution network according to an embodiment of the present invention; and

Fig. 2 is a flowchart of a data processing method for a power distribution network according to an embodiment of the present invention.

detailed description

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

An embodiment of the present invention provides a data processing system for a distribution network.

Fig. 1 is a schematic diagram of a data processing system of a distribution network according to an embodiment of the present invention. As shown in FIG. 1 , the data processing system of the distribution network includes: a baseband subsystem 10 , an intermediate radio frequency subsystem 20 , an antenna feeder subsystem 30 and a complete machine subsystem 40 .

The baseband subsystem 10 is used to generate instructions for collecting distribution network data.

The intermediate radio frequency subsystem 20 is connected with the baseband subsystem, and is used for modulating the command sent to the distribution network, and demodulating the response signal received from the distribution network for responding to the command.

The antenna subsystem 30 is connected to the radio frequency subsystem, and is used to send instructions to the distribution network through the 4G wireless network, and receive response signals through the 4G wireless network.

The whole machine subsystem 40 is connected with the baseband subsystem, and is used for data processing on the response signal.

As shown in Figure 1, after the baseband subsystem generates the instruction of the mobile phone distribution network data, it sends the instruction to the intermediate radio frequency subsystem, and after being modulated by the intermediate radio frequency subsystem, it is sent to the distribution network through the antenna feeder subsystem through the 4G wireless network .

When receiving the response signal, it is received by the antenna feeder subsystem, demodulated by the intermediate radio frequency subsystem and sent to the baseband subsystem, and the whole machine subsystem performs data processing on the received response signal. For example, store the data of the distribution network carried by the response signal, detect the operating status of the distribution network, and so on.

Further, the baseband subsystem also includes a transmission interface, configured to send instructions to the intermediate radio frequency subsystem through the transmission interface.

Further, the intermediate radio frequency subsystem is also used for the conversion between the baseband signal, the intermediate frequency signal and the radio frequency signal. The intermediate radio frequency subsystem can not only modulate and demodulate signals, but also realize signal conversion and power amplification. For example, before sending instructions, the baseband signal generated by the baseband subsystem is converted into an intermediate frequency signal or a radio frequency signal for transmission.

Further, the antenna feeder subsystem includes: an antenna, connected to the intermediate radio frequency subsystem, for sending commands or receiving response signals; a feeder, connected to the intermediate radio frequency subsystem, for transmitting commands from the central The radio frequency subsystem sends the response signal to the antenna, or, after the antenna receives the response signal, the antenna sends the response signal to the intermediate radio frequency subsystem.

The antenna and feeder can effectively transmit the signal received by the antenna, with small distortion, low loss, and strong anti-interference ability. There should be good impedance matching between the feeder and the antenna, and between the signal input of the receiver.

Through the above embodiments, the 4G wireless network is used to transmit the data in the distribution network, and the security and stability of the 4G network are used to transmit the data of the distribution network, which solves the problem of unstable data transmission in the distribution network in the prior art , achieving the effect of stable data transmission.

The invention provides a data processing method of a distribution network. Fig. 2 is a flowchart of a data processing method for a power distribution network according to an embodiment of the present invention. As shown in the figure, the data processing method of the distribution network includes the following steps:

Step S202, generating an instruction for collecting distribution network data;

Step S204, modulating the instruction sent to the distribution network;

Step S206, sending instructions to the distribution network through the 4G wireless network;

Step S208, receiving a response signal from the distribution network for responding to the instruction through the 4G wireless network, wherein the response signal carries distribution network data; and

Step S210, performing data processing on the distribution network data.

Send the command to the distribution network through the 4G wireless network, and then collect the response signal returned by the distribution network through the 4G wireless network. The response signal carries the data of the distribution network. After receiving the data of the distribution network, the data can be processed. deal with. Through this embodiment, the 4G wireless network is used to transmit data in the distribution network, and the security and stability of the 4G network are used to transmit the data of the distribution network, which solves the problem of unstable data transmission in the distribution network in the prior art , achieving the effect of stable data transmission.

A variety of instructions can be sent through the 4G wireless network, for example, instructions on the operating status of the distribution network, remote meter reading instructions, and the like.

Further, the instruction includes a detection instruction of the operating state of the distribution network, and sending the instruction to the distribution network through the 4G wireless network includes: sending a detection instruction of the operating state of the distribution network to the distribution network through the 4G wireless network; Receiving a response signal from the distribution network for responding to an instruction includes: receiving a response signal from the distribution network for responding to a detection instruction of an operating state of the distribution network through a 4G wireless network.

Further, the data processing of the distribution network data includes: judging whether the response signal used to respond to the detection command of the operating state of the distribution network indicates that the distribution network is operating abnormally; if it is determined that the response signal indicates that the distribution network is operating abnormally, then Issue a warning of abnormal operation of the distribution network.

The unattended monitoring system in the power industry is mainly for real-time monitoring of the operating status of key power distribution equipment and computer rooms (such as power supply and distribution systems, UPS power supplies, air conditioners, fire protection systems, security access control systems, etc.), and the environmental power status of equipment operation. And record historical data, realize the management function of the five remotes (telemetry, remote signaling, remote control, remote adjustment, remote viewing) of the power computer room, so that the monitoring of the computer room in the power industry can be unattended or few people are on duty, which is the efficient management and safe operation of the computer room Provide a strong guarantee. The unattended monitoring system based on LTE broadband wireless private network can carry out 24-hour uninterrupted environmental dynamic monitoring, comprehensive alarm processing, and can transmit various voice alarms, real-time curves, historical reports, etc., and can also send alarms through short messages when alarming The module implements SMS alarm notification function. It can be realized that in the case of unattended, the alarm information can also be transmitted to the relevant management personnel.

Power load control is used to monitor the customer side in real time, especially on-site information such as power load and power consumption of large customers above 100kVA. Power load management is an important technical means to realize the modernization of user-side power load monitoring. It has functions such as data collection, anti-theft power, and load control. When power is in short supply, the application of power load management system can effectively alleviate the contradiction between power supply and demand and realize orderly power consumption. When the contradiction between power supply and demand eases, the power load management system can improve and improve the service quality for customers and improve the level of power consumption management.

There are a large number of power load management terminals, and the amount of transmitted data is large. In developed provinces and cities, there are more than 100,000 users of 100kVA or more in each province. The load management communication network is required to have a large data transmission capacity. In addition, power load management terminals are mostly deployed indoors, requiring good indoor wireless coverage. The non-line-of-sight transmission capability of LTE and the CPE terminal are suitable for installation in various complex load control scenarios, which can complete good indoor coverage and ensure real-time and reliability of load management. The wireless transmission of load control data can use the LTE terminal CPE to connect with the monitoring equipment (RTU) of load control through the RS232 interface, and communicate with the main station system through a wireless link.

In the information engineering of the power system, the automatic copying of the meter data is of great significance, and it is also a problem that the power industry urgently wants to solve, because the accuracy and timeliness of the copying of the meter data directly affect the information of the power sector system The level of modernization, and even management decisions, economic benefits.

Traditional manual meter reading is time-consuming, laborious, and its accuracy and timeliness cannot be reliably guaranteed, which leads to the inability of relevant marketing and enterprise management software to obtain sufficiently detailed and accurate raw data. Generally, manual meter reading is performed on a monthly basis, which is feasible for user metering, but it is not enough for relevant supply departments to conduct deeper analysis and management decisions. The actual needs of the industry have led to the continuous development of automatic meter reading systems.

At present, due to the wide distribution of meters, most of the remote meter reading still uses the wired transmission method, and the maintenance of the lines is very large. Because the telephone line is shared, conflicts often occur during communication, which not only affects the data transmission but also interferes with the normal work of the electrical adjustment department, and this method also has a certain impact on the normal and stable operation of the program-controlled switchboard in the communication department. In order to ensure the quality of transmission, wireless meter reading is used to solve the above problems well.

Supported by the emergency command technology and display application system dedicated to the power system, the business data of the distribution system circuit breaker, recloser, sectionalizer, column load switch and ring main unit collected by the feeder automation terminal (FTU) are timely Send it back to the main station, and execute the control and adjustment instructions given by the main station to the power distribution equipment, so as to realize various functions of feeder automation.

Distribution transformer monitoring is to organically integrate the monitoring, protection, control, measurement and work management of the power supply department of distribution transformers under normal and accidental conditions, so as to achieve the best power supply economy and more effective enterprise management. At present, my country's distribution transformer monitoring system is in the development stage, and the number of distribution transformers included in the distribution transformer monitoring system is still very small. In order to improve the reliability and quality of power supply in the future, the distribution transformer monitoring system will gradually increase the coverage of distribution transformers, especially the distribution transformers above 100KVA are all included in the monitoring of the distribution transformer monitoring system.

As a brand-new emergency communication method, the emergency communication (including vehicle) system solves the emergency audio and video communication problems in the current power emergency rescue, engineering survey, on-site construction and other environments, and becomes an extension of the power communication network and information application system. The application of mobile communication (including vehicle) system will greatly improve the level of power emergency communication equipment and response speed.

The LTE broadband wireless private network system has the characteristics of small equipment size and shock resistance, and can be fully applied to existing vehicle systems to realize services such as trunking intercom, video backhaul, video conferencing, voice and video linkage, etc., and the use is not subject to geographical restrictions. Starts quickly. Through the LTE emergency communication vehicle, the emergency site can complete network deployment in a short time. Including directly collecting real-time dynamic pictures on the scene through the wireless private network and sending them back to the headquarters. Emergency command and dispatch can be carried out on the scene through the command center to improve effective and timely communication in emergency rescue and scientific decision-making.

Further, the instruction includes a fault location instruction of the distribution network, and sending the instruction to the distribution network through the 4G wireless network includes: sending a fault location instruction to the distribution network through the 4G wireless network; receiving a fault location instruction from the distribution network through the 4G wireless network. The response signal responding to the command includes: receiving a response signal from the power distribution network through the 4G wireless network for responding to the fault location command.

Further, after receiving the response signal from the distribution network for responding to the fault location instruction through the 4G wireless network, the method further includes: obtaining the location information of the distribution network fault through a geographic positioning system; and receiving the location information through the 4G wireless network.

Line inspection plays a very important role in the production operation and line maintenance in the electric power field. Now the manual work mode is widely used in actual work, with little information and low efficiency, which cannot meet the standardization requirements. With the rapid development of the enterprise, the condition of the line is becoming more and more complicated, the maintenance of the line is difficult, and the amount of inspection is large. The manual line inspection mode currently used can no longer meet the actual needs.

Using the LTE network, through the deployment of positioning terminals and advanced GIS technology, combined with the actual needs of the power industry, it can comprehensively solve the problem of the lack of information and irregularities in manual line inspections, and the inability to accurately judge the presence of line inspection personnel. And other issues.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. a data handling system for power distribution network, is characterized in that, comprising:

Baseband subsystems, for generating the instruction for collecting power distribution network data;

Middle Radio Frequency Subsystem, is connected with described baseband subsystems, for modulating the described instruction sent to power distribution network, and the response signal for responding described instruction from described power distribution network that demodulation receives;

Antenna feeder subsystem, described middle Radio Frequency Subsystem is connected, and for sending described instruction by 4G wireless network to described power distribution network, and receives described response signal by described 4G wireless network; And

Complete machine subsystem, is connected with described baseband subsystems, for carrying out data processing to described response signal.

2. system according to claim 1, is characterized in that, described baseband subsystems also comprises coffret, for described instruction being sent to described middle Radio Frequency Subsystem by described coffret.

3. system according to claim 1, is characterized in that, described middle Radio Frequency Subsystem is also for existing baseband signal, conversion between intermediate-freuqncy signal and radiofrequency signal.

4. system according to claim 1, is characterized in that, described antenna feeder subsystem comprises:

Antenna, is connected with described middle Radio Frequency Subsystem, for sending described instruction or receiving described response signal;

Feeder line, be connected with described middle Radio Frequency Subsystem, before sending described instruction at described antenna, described instruction is sent to described antenna by described middle Radio Frequency Subsystem, or, after described antenna receives described response signal, described response signal is sent to described middle Radio Frequency Subsystem by described antenna.

5. a data processing method for power distribution network, is characterized in that, comprising:

Generate the instruction for collecting power distribution network data;

Modulate the described instruction sent to power distribution network;

Described instruction is sent to described power distribution network by 4G wireless network;

Receive the response signal for responding described instruction from described power distribution network by described 4G wireless network, wherein, described response signal carries described power distribution network data; And

Data processing is carried out to described power distribution network data.

6. method according to claim 5, is characterized in that, described instruction comprises the detection instruction of the running status of described power distribution network,

Send described instruction by 4G wireless network to described power distribution network to comprise: the detection instruction being sent the running status of described power distribution network by described 4G wireless network to described power distribution network;

Comprising for the response signal responding described instruction from described power distribution network is received: receive the response signal from the detection instruction of the running status for responding described power distribution network of described power distribution network by described 4G wireless network by described 4G wireless network.

7. method according to claim 6, is characterized in that, carries out data processing comprise described power distribution network data:

Judge whether the response signal of the detection instruction of the running status for responding described power distribution network points out described power distribution network operation exception;

If judge that described response signal points out described power distribution network operation exception, then send the warning of described power distribution network operation exception.

8. method according to claim 5, is characterized in that, described instruction comprises the fault location instruction of described power distribution network,

Send described instruction by 4G wireless network to described power distribution network to comprise: send described fault location instruction by 4G wireless network to described power distribution network;

Comprising for the response signal responding described instruction from described power distribution network is received: receive the response signal for responding fault location instruction from described power distribution network by 4G wireless network by 4G wireless network.

9. method according to claim 8, is characterized in that, received by described 4G wireless network from described power distribution network for respond fault location instruction response signal after, described method also comprises:

The positional information of described distribution network failure is obtained by geo-positioning system;

Described positional information is received by described 4G wireless network.