CN105610245B - Intelligent substation simulates main website integrated test system - Google Patents

Abstract

The invention relates to the technical field of substations, in particular to a comprehensive test system for an intelligent substation simulated master station, which includes a simulated master station tester. The simulated master station tester A is connected to a data communication cabinet in area A through a router and a switch, and the simulated master station is tested. Instrument B is connected to the data communication cabinet in area B through a router and a switch, and the data communication cabinet in area A communicates with the measurement and control device and the local monitoring machine respectively; the data communication cabinet in area B is also integrated with the alarm direct transmission graphics gateway The application server is connected, and the data communication cabinet in the A area and the data communication cabinet in the B area are connected with the dispatching data screen, and the dispatching data screen transmits the data to the control center; the use of the comprehensive tester of the intelligent substation simulation master station makes the original The information checking work that needs to be repeated twice becomes one time, which reduces the number of pulling and closing of the equipment, effectively reduces the damage to the equipment, and prolongs the service life of the equipment.

Description

Intelligent substation simulation master station comprehensive test system

technical field

The invention relates to the technical field of substations, in particular to an intelligent substation simulation master station comprehensive test system.

Background technique

With the development of smart grid and the improvement of digital communication technology, the digital signals of smart substations are getting larger and larger. A 220 kV smart substation needs to communicate nearly three thousand (two thousand) signals. Telecontrol information check is the work that must be carried out before the substation is put into operation. It is used to check whether the information generated in the station can be sent to the dispatching master station correctly. The main verification objects are the information point number conversion of the telecontrol device and the information points of the databases of both parties. Is the name correct.

The traditional telecontrol information verification method is as follows: (1) The local substation performs a signal verification according to the monitoring information table. The substation staff operates on the spot according to the monitoring information table, "sends" a signal, the background monitoring system receives and displays the action information, uses the state change of the signal within a specific time to judge the action signal point, and verifies the substation on-site signal and the background monitoring system. Correspondence and correctness of database signals. (2) After the network communication conditions between the substation and the master station are met, dispatch the master station for acceptance. The substation staff operates on the spot according to the substation monitoring information table, "sends" a signal, and the dispatching master station accepts and displays the action information identified by the digital number from the telecontrol device, and uses the status change of the signal within a specific time to judge Action the signal point, and confirm the correspondence and correctness of the description of the signal point and the information "occurring" at the substation end. This process requires continuous communication between the staff in the substation and the staff at the master station.

Problems in the current verification method: The traditional telecontrol information verification method requires at least two signal verifications, and the signal involving switch displacement needs to be pulled repeatedly, causing damage to the equipment once. And under this method, the telecontrol information verification can only be carried out after the communication network between the substation and the main dispatching station is unblocked, and the channel can only be opened after the construction of the line outside the station is completed. At this time, it is close to the power transmission time. The period of stay is tight, requiring staff to work overtime. In addition, this method requires the cooperation between the substation end and the main dispatching station to check each control information one by one. The two parties need to be in close contact and work together. Continuous calls not only cause waste of resources, but also cause staff fatigue.

Contents of the invention

In order to solve the deficiencies in the above-mentioned technical problems, the object of the present invention is to provide a comprehensive test system for a smart substation simulating master station, capable of communicating with remote machines in the station, simulating the environment of the master station, reducing the number of times and time-consuming information checks, Extend the life of the equipment and reduce the burden on the staff.

The technical scheme that the present invention adopts for solving its technical problem is:

The integrated test system of the intelligent substation simulated master station includes a simulated master station tester. The simulated master station tester A is connected to the data communication cabinet in area A through a router A and a switch A, and the simulated master station tester B is connected through a router B and a switchboard. B is connected to the data communication cabinet in area B. The data communication cabinet in area A is equipped with telecontrol device A, telecontrol device B and switch A. The data communication cabinet in area A communicates with the measurement and control device and the local monitoring machine respectively. connection; the data communication cabinet in the B area is provided with a communication gateway machine and a switch B, and the data communication cabinet in the B area is also connected with the integrated application server of the alarm direct transmission graphics gateway machine, and the data communication cabinet in the A area and the data communication cabinet in the B area The communication cabinets are all connected with the dispatching data screen, and the dispatching data screen transmits the data to the control center.

Further preferably, the analog master tester includes a basic model database, a channel information configuration module, a model service module, a point table import module, a data display module and an alarm module.

Further preferably, the analog master station tester includes a housing, the upper part of the housing is provided with a heat sink, the front end of the housing is provided with multiple sets of interfaces, and the inside of the housing is provided with a chip, a CPU processor and a storage device.

Further preferably, the measurement and control device can collect electrical parameters such as voltage, current, and contact state of the operating equipment, has functions such as power monitoring, analysis, and control, and can complete remote measurement, remote signaling, and remote control functions for each interval.

Further preferably, the remote control device A and the remote control device B include a plurality of remote machines, and the remote machines are connected to the dispatching station and the substation through a line carrier, a dedicated optical cable, and the like.

Further preferably, the alarm is directly uploaded to the dispatching center for use by direct transmission of the telesignaling, telemetry and graphic information in the collection station of the integrated application server of the graphic gateway machine.

Further preferably, a firewall is provided between the data communication cabinet in area A and the data communication cabinet in area B.

Compared with the prior art, the present invention has the following beneficial effects:

(1) This device has changed from the image of bulky and heavy testers in the past. It is lightweight and flexible, and it is easy to move at any time with the change of the working place. The shell of the tester is made of metal, which has good compression and impact resistance. The top of the device is a metal sheet structure, which can fully dissipate heat and ensure the speed of its internal operation. There are multiple sets of interfaces on the front end to fully meet the needs of display screens, switches and mobile storage. The connection requirements of the device.

(2) This device can communicate with the remote machine in the station and simulate the environment of the main station under the condition that the communication network with the main station is not yet available, copy the monitoring information of the substation from the dispatcher in advance for simulation debugging, information verification, and verify the signal in the station The correctness of the connection mode and protocol submission, and timely change after the problem is found, so that the monitoring information meets the access acceptance requirements in advance and meets the random inspection acceptance standard. Then carry out the remote transmission test with the dispatching master station, and then carry out random inspection. The remote transmission information check can be completed before the optical cable enters the station, which greatly improves the efficiency of the remote transmission test and can shorten the construction period of the project. The site calibration of substation protection data can be completed within 1-2 days. Ensure that the power grid construction is put into operation as scheduled.

(3) The use of the comprehensive tester of the intelligent substation simulation master station makes the information check work that needs to be repeated twice become one time, which reduces the number of pulling and closing of the equipment once, effectively reduces the damage to the equipment, and prolongs the use of the equipment life.

(4) Use the intelligent substation simulation master station comprehensive tester to make the station meet the acceptance conditions as soon as possible, and dispatch the master station for random inspection and acceptance, which saves the long conversation in the middle, effectively saves the work cost and reduces the load on the staff.

Description of drawings

Fig. 1 structural block diagram of the present invention.

Detailed ways

Embodiments of the present invention are further described below in conjunction with the accompanying drawings:

Example 1

As shown in Figure 1, the intelligent substation simulated master station comprehensive test system of the present invention includes a simulated master station tester, and the simulated master station tester A is connected to the data communication cabinet in area A through a router A and a switch A, and the simulated master station Tester B is connected to the data communication cabinet in area B through router B and switch B. The data communication cabinet in area A is equipped with telecontrol device A, telecontrol device B and switch A. The data communication cabinet in area A is connected to The measurement and control device communicates with the local monitoring machine; the data communication cabinet in the B area is provided with a communication gateway machine and a switch B, and the data communication cabinet in the B area is also connected with the integrated application server of the alarm direct transmission graphics gateway machine, and the A Both the data communication cabinet in area A and the data communication cabinet in area B are connected with the dispatching data screen, and the dispatching data screen transmits the data to the control center; there is a firewall between the data communication cabinet in area A and the data communication cabinet in area B.

Among them, the simulated master station tester includes a basic model database, channel information configuration module, model service module, point table import module, data display module and alarm module; The front end of the shell is provided with multiple sets of interfaces, and the inside of the shell is provided with a chip, a CPU processor and a storage device.

The measurement and control device can collect electrical parameters such as voltage, current, and contact status of the operating equipment, and has functions such as power monitoring, analysis, and control, and can complete the functions of remote measurement, remote signaling, and remote control for each interval.

For the needs of grid dispatching, the grid dispatching side should also be able to monitor or control the equipment in the substation. Since dispatching is far away from the substation, the dispatching and substation are connected by line carrier, special optical cable, etc., and the signals are modulated and downloaded by remote motors installed at both ends to complete various functions.

The telecontrol devices A and B mainly complete the functions of telecontrol data collection, processing, sending, receiving and output execution in the substation according to the telecontrol protocol.

The local monitoring machine is an automatic system that monitors and controls the dynamic process by partially or completely replacing conventional control equipment and monitoring instruments with computers.

The alarm is directly transmitted to the graphic gateway machine, and the integrated application server collects the telemetry and graphic information in the collection station and directly uploads them to the dispatching center for use. This mode is different from the traditional dispatching mode. The dispatching end does not need to make a database, and it can transfer the alarms in the station Signals and graphics are directly converted into messages and uploaded to the dispatcher. As long as the dispatcher receives the message and parses it, he can see the information in the station.

Control flow:

1. Create a test system model

The dispatch center provides a typical information sheet, and the construction unit organizes it according to the actual situation on site. After the information sheet is reviewed and finalized, it is imported into the device by the dispatch center.

2. Create the pre-information of the test system, such as RTU and four-remote information

Import the information table into the device and set the RTU address and IP address in the tester as the station end address, the port number as the station end port number, and the protocol selection is the same as that of the master station.

3. To simulate and check the four remote signals, it is necessary to conduct multiple tests for multi-channel situations

The tester can be connected to two channels, and test and verify the two channels respectively.

4. Simulate and check the remote browsing function, and perform function debugging such as screen retrieval and data browsing

Check the screen and data, and check with the actual data on site.

5. Simulate and check the alarm direct transmission function, and confirm that the alarm direct transmission function is normal

The working principle of the analog master station tester:

Under the condition that the communication between the substation and the main station is not yet available, the intelligent substation simulation master station tester can simulate the environment of the main station, import the substation monitoring information table into the substation in advance, and carry out simulated debugging and information verification of the monitoring information, so that the monitoring information can be monitored in advance Reach the access acceptance requirements and meet the random inspection acceptance standards. The site adjustment of the intelligent station protection data for more than 10 days can be completed within a limited period of 1-2 days.

Connect the intelligent substation simulation main station tester with the remote machine in the station through a switch, and set the RTU address, IP address and port number of the intelligent substation simulation main station comprehensive tester to be the same A local area network is formed between the remote machines to collect electrical parameters such as voltage, current, and contact status of the operating equipment by receiving the measurement and control device in the station, so as to realize the monitoring and control of the dynamic process in the station by the tester of the intelligent substation simulation master station.

Set the smart substation simulation master station tester protocol and other related configurations to be consistent with the master station, completely simulating the state of the master station. At this time, the substation monitoring information table is imported into the tester, and the remote transmission test can be carried out in advance.

Claims (6)

1. An intelligent substation analog master station comprehensive test system, comprising a simulated master station tester, is characterized in that the simulated master station tester A is connected with the data communication cabinet in the A area by a router A and an exchange A, and the simulated master station tester B is connected to the data communication cabinet in area B through router B and switch B. The data communication cabinet in area A is equipped with telecontrol device A, telecontrol device B and switch A. The data communication cabinet in area A is respectively connected to the measurement and control device Carry out communication connection with the local monitoring machine; The data communication cabinet in the B area is provided with a communication gateway machine and a switch B, and the data communication cabinet in the B area is also connected with the comprehensive application server of the alarm direct transmission graphics gateway machine, and the data communication cabinet in the A area Both the communication cabinet and the data communication cabinet in area B are connected to the dispatching data screen, which transmits the data to the control center, and the simulation master station tester includes the basic model database, channel information configuration module, model service module, and point table import module, data display module and alarm module. 2. The intelligent substation simulation master station comprehensive test system according to claim 1, wherein the simulation master station tester comprises a shell, the top of the shell is provided with a cooling fin, the front end of the shell is provided with multiple groups of interfaces, and the inside of the shell It is equipped with chip, CPU processor and storage device. 3. the intelligent substation simulation main station comprehensive test system according to claim 1, is characterized in that, measurement and control device can collect the voltage of operating equipment, electric current, contact state electrical parameter, has electric energy monitoring, analysis, control function, can complete each Interval telemetry, telesignaling and telecontrol functions. 4. The intelligent substation simulation master station comprehensive test system according to claim 1, wherein the telecontrol device A and the telecontrol device B include a plurality of telemotors, and the telemotors will dispatch the dispatcher by way of line carrier and dedicated optical cable. connected to the substation. 5. The intelligent substation simulation master station comprehensive test system according to claim 1, characterized in that the alarm is directly transmitted to the graphic gateway machine integrated application server and the remote signal telemetry and graphic information in the collection station are directly uploaded to the dispatching center for use. 6. The intelligent substation simulation master station comprehensive test system according to claim 1, characterized in that a firewall is provided between the data communication cabinet in area A and the data communication cabinet in area B.