CN109962527A - A Distributed Terminal Fault Recording System - Google Patents

Abstract

The invention proposes a power distribution terminal fault recording system, which relates to the technical field of electric power systems, and includes a main station system and a fault recording device access system. The main station system station is composed of a fault recording server, a historical data server and a workstation. , using the B/S system construction, the user logs in the main station system through the Web interface to query the fault recorder information; the fault recorder access system is used for communication and management with the built-in fault recorder of the power distribution terminal, complete The connection of a large number of fault recorders and the record of fault recorder information and log records include wireless front-end systems and wired front-end systems. Multiple fault recorders are connected to the wireless front-end through GPRS wireless mode. A set-up system, and a plurality of fault recording devices are connected to the wired front-end system through optical fiber Ethernet. The invention is used for fault detection and fault recording of distribution network lines, and provides basic and accurate data for distribution network fault analysis.

Description

A Distributed Terminal Fault Recording System

technical field

The invention relates to the technical field of power systems, in particular to a power distribution terminal fault recording system.

Background technique

With the construction of power distribution automation, the current new power distribution rooms have basically achieved the "three remote" coverage, and the old power rooms have also undergone three remote transformation of power distribution automation. However, the current distribution automation terminal generally does not have the function of fault recording, and there is no unified requirement for the sampling frequency of analog current and voltage, but only realizes the real-time telemetry of the line load, and the range of the telemetry current is limited, generally not exceeding the rated value. Fifty times of the 100A secondary current, and the actual secondary fault current needs to consider the primary current condition of 167A, 20kA; at the same time, the current and voltage mutation on the line cannot be captured and recorded in real time; at the moment of switching action, It is also impossible to record the current, voltage, switching value and other fault recording data at the corresponding time. Therefore, the distribution terminal cannot accurately capture the accurate fault current of the line at the moment of fault, switch displacement, load voltage mutation, etc. At the same time, the sampling frequency is also low, and it is impossible to make detailed analysis and judgment on the fault of the distribution network. The substation fault recording device is installed at the station exit. It can only collect the recording of the entire feeder, but cannot obtain the action of the feeder switch, the current and voltage of the branches, and the switching action. Therefore, the substation fault recording device does not meet the distribution network fault. analyze. Therefore, there is an urgent need for a distribution terminal fault recording system to provide basic and accurate data for distribution network fault analysis.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the shortcomings existing in the prior art, thereby proposing a fault recording system for distribution terminals, which enriches the database of fault analysis and improves the operation safety of the distribution network system.

The present invention specifically adopts the following technical scheme to realize:

A power distribution terminal fault recording system, including a master station system and a fault recording device access system, wherein,

The main station system station is composed of a fault recording server, a historical data server and a workstation, and is constructed with a B/S system. Users log in to the main station system through a Web interface to query the fault recording information;

The fault recording device access system is used for communication and management with the built-in fault recording device of the power distribution terminal, completing the connection of a large number of terminals, the recording of terminal information and the recording of logs, which include wireless front-end systems and wired front-end systems. A set-up system, a plurality of fault recording devices are connected to the wireless front-end system through GPRS wireless mode, and a plurality of fault-wave recording devices are connected to the wired front-end system through optical fiber Ethernet.

Preferably, the wireless front-end computer system includes a plurality of wireless communication servers, a plurality of data acquisition switches and a maintenance workstation, a plurality of fault recording devices are connected to a plurality of the data acquisition switches through a public communication network, and a plurality of the The data acquisition switch is connected to a plurality of the wireless communication servers and the maintenance workstation through a network, and then connected to the master station system through a forward physical isolation device and a reverse physical isolation device.

Preferably, the wired front-end computer system includes a plurality of data acquisition switches and a plurality of data acquisition servers, and a plurality of fault recording devices are connected to the plurality of data acquisition switches through a dispatching data network, and a plurality of the data acquisition switches are connected. It is connected with the master station system through a plurality of the data acquisition servers.

Preferably, the master station system further includes a plurality of backbone switches, and the forward physical isolation device and the reverse physical isolation device are connected to the plurality of backbone switches through a network.

Preferably, the master station system further includes a plurality of backbone switches, and a plurality of the data acquisition servers are connected with the plurality of the backbone switches through a network.

Preferably, the web interface of the master station system includes a login module, a device selection module, a wave recorder file display module, a wave recorder device location display module, a wave recorder file search module and an account management module, wherein,

The login module is used to ensure system security, and relevant functions can only be displayed by logging in with an account number and password;

The device selection module locates the specific wave recording device by selecting the power supply bureau, the substation, the feeder and the power house, and the information of the wave recording device is displayed on the interface;

The wave recording file display module is used to display all files on the left side of the interface, display the fault wave recording file, and the user downloads the relevant wave recording file according to needs;

The position display module of the wave recording device displays the specific position of the wave recording device in the form of a map in the middle of the interface;

The wave recorder file search module is used for the user to select a time period to search the wave recorder file, and the found wave recorder file is also displayed on the left side;

The account management module is used to create and delete user accounts, and the WEB interface also provides the function of modifying the administrator's password to manage the administrator.

The power distribution terminal fault recording system provided by the present invention has the beneficial effects that: the fault recording device access system is responsible for real-time communication with the built-in fault recording device of the distribution terminal and management of the wave recording device. Wave recording files and GPS positioning information of the device, add devices connected to the system, delete abandoned devices; the main station system is used to provide a WEB interface to remotely display the location of the recorded wave files and devices, and provide a remote download interface for local download. Analyze the fault waveform. The invention is used for fault detection and fault recording of distribution network lines, and provides basic and accurate data for distribution network fault analysis.

Description of drawings

Fig. 1 is the principle block diagram of the built-in wave recording system of the power distribution terminal of the present invention;

Fig. 2 is a configuration diagram of the Web interface of the master station system.

Detailed ways

To further illustrate the various embodiments, the present invention is provided with the accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant description of the specification to explain the operation principles of the embodiments. With reference to these contents, one of ordinary skill in the art will understand other possible embodiments and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are often used to represent similar components.

The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 , this embodiment provides a power distribution terminal fault recording system, including a master station system and a fault recording device access system. The main station system station is composed of a fault recorder server 1, a historical data server 2 and a workstation 3. It is constructed with a B/S system. Users log in to the master station system through the Web interface to query the fault recorder information; the fault recorder access system is used for The communication and management with the built-in wave recording device of the power distribution terminal completes the connection of massive terminals, the recording of terminal information and the recording of logs, including wireless front-end system and wired front-end system.

The wireless front-end computer system includes multiple wireless communication servers 4, multiple data acquisition switches 5 and maintenance workstations 6, and several built-in fault recording devices 11 in power distribution terminals are connected to multiple data acquisition switches 5 through a public communication network. Firewall 10 is set between the network and multiple data acquisition switches, multiple data acquisition switches 5 are connected with multiple wireless communication servers 4 and maintenance workstations 6 through the network, and then through the forward physical isolation device 7 and the reverse physical isolation device 8 It is connected to a plurality of backbone switches 9 of the master station system.

The wired front-end computer system includes multiple data acquisition switches 5 and multiple data acquisition servers 12. Several fault recording devices are connected to the multiple data acquisition switches through the dispatching data network, and the multiple data acquisition switches are connected to the multiple data acquisition servers through the multiple data acquisition switches. Multiple backbone switches of the master system are connected.

When using the fault recorder to connect to the system, when there is a built-in fault recorder in the power distribution terminal, all the information of the connected fault recorder will be displayed below the fault recorder ID and IP information. The number of connections of the wave recorder and the data sent and received can also be seen; when the fault recorder has a fault recorder file, the recorder file will be saved under the year and month of the corresponding ID, and the background can easily view and analyze the recorder file; When adding a fault recorder, if a new fault recorder is to be added to the system, the new fault recorder must be added in the fault recorder access system, and the IP and ID of the fault recorder must be set. , The ID of the fault recording device is the unique identity of the terminal and cannot be repeated. In addition, the name of the fault recording device should be set. At the same time, the power room, feeder, substation and power supply bureau to which it belongs should also be determined, so as to facilitate unified management of the terminal. The new terminal needs to contain all the terminal information.

The communication information between the fault recorder and the access system of the fault recorder will be saved in the form of a log, which is convenient for subsequent analysis of the fault recorder and search for original data.

As shown in Figure 2, the web interface of the master station system includes a login module, a device selection module, a wave recorder file display module, a wave recorder device location display module, a wave recorder file search module and an account management module, wherein,

The login module is used to ensure system security, and related functions can only be displayed by logging in with an account number and password;

The device selection module locates the specific wave recording device by selecting the power supply bureau, substation, feeder and power house, and the information of the wave recording device is displayed on the interface;

The recording file display module is used to display all files on the left side of the interface, and display the fault recording files within one year. Users can download the relevant recording files according to their needs;

The position display module of the wave recording device displays the specific position of the wave recording device in the form of a map in the middle of the interface;

The wave recording file search module is used for the user to select the time period to search the wave recording file, and the found wave recording file is also displayed on the left side;

The account management module is used to create and delete user accounts, and the WEB interface also provides the function of modifying the administrator password to manage the administrator.

This application will provide basic data for fault analysis of distribution network lines, enrich the database for fault analysis, and make judgments on whether the protection operates correctly, thereby improving the safe operation of the distribution network system.

Although the present invention has been particularly shown and described in connection with preferred embodiments, it will be understood by those skilled in the art that changes in form and detail may be made to the present invention without departing from the spirit and scope of the invention as defined by the appended claims. Various changes are made within the protection scope of the present invention.

Claims (6)

1. a kind of distribution terminal fault recording system, which is characterized in that including main station system and fault wave recording device access system, Wherein,

The main station system is made of failure wave-recording server, historic data server and work station, is constructed using B/S system, User logs in the main station system by web interface and inquires Fault Recorder Information；

The fault wave recording device access system is used for communication and management with fault wave recording device built in distribution terminal, completes sea Measure the connection of fault wave recording device and the record of fault wave recording device information and the record of log comprising wireless front end processor system System and wired front-end processor system, multiple fault wave recording devices access the wireless front-end processor system by GPRS wireless mode, more A fault wave recording device accesses wired front-end processor system by fiber optic Ethernet mode.

2. a kind of distribution terminal fault recording system according to claim 1, it is characterised in that: the wireless front end processor system System includes that multiple wireless communication servers, multiple data acquisition interchanger and maintenance work station, several fault wave recording devices are logical Public telecommunication network is crossed connect with multiple data acquisition interchangers, multiple data acquisition interchangers pass through network with it is multiple The wireless communication server is connected with the maintenance work station, then again by positive physical isolation device and reversed physics every It is connect from device with the main station system.

3. a kind of distribution terminal fault recording system according to claim 1, it is characterised in that: wired front end processor system System includes that multiple data acquisition interchanger and multiple data acquisition servers, several fault wave recording devices pass through dispatch data net It is connect with multiple data acquisition interchangers, multiple data acquisition interchangers pass through multiple data acquisition servers It is connect with the main station system.

4. a kind of distribution terminal fault recording system according to claim 2, it is characterised in that: the main station system also wraps It includes multiple backbone switch, the positive physical isolation device and reversed physical isolation apparatus and multiple backbone switch is logical Cross network connection.

5. a kind of distribution terminal fault recording system according to claim 3, it is characterised in that: the main station system also wraps Multiple backbone switch are included, multiple data acquisition servers and multiple backbone switch pass through network connection.

6. a kind of distribution terminal fault recording system according to claim 1, it is characterised in that: the main station system Web interface includes login module, device selecting module, recorded wave file display module, wave recording device position display module, recording text Part searching module and account management module, wherein

The login module can only could show correlation function by account and password login for safeguards system safety；

Described device selecting module navigates to specific wave recording device, recording by selection power supply bureau, substation, feeder line and electric room The information of device is shown on interface；

The recorded wave file display module shows failure wave-recording file, Yong Hugen for showing all files on the left of interface According to needing to download relevant recorded wave file；

Wave recording device position display module shows the specific location of wave recording device in the middle part of interface by map view；

The lookup that the recorded wave file searching module is used to select the period to carry out recorded wave file for user, the recording text found Part is equally shown in left side；

The account management module is for creating and deleting user account, while WEB interface also provides modification administrator's password function Can, administrator is managed.