CN104935079A - A smart substation domain protection system and function debugging method - Google Patents

Abstract

The invention relates to a station-domain protection system of an intelligent transformer station and a function debugging method of the system. A station-domain protector is mounted between an integrated application server and monitor host and a central switch of a process layer, the station-domain protector is networked with the integrated application server and monitor host via MMS messages, and the integrated application server and monitor host is networked with the central switch of the process layer via GOOSE and SV messages. The debugging technology as well as single debugging, network debugging and group transmission methods of station-domain protection of the new generation of intelligent transformer station are included, the workload of equipment maintenance is reduced, wire arrangement is greatly reduced, wiring is simple and convenient, the installation efficiency is effectively improved, the whole construction period is shortened, and the operation stability of the system is improved.

Description

A smart substation domain protection system and function debugging method

technical field

The invention belongs to the field of intelligent substations, and relates to a new generation of intelligent substation protection device and a function debugging method, key technical debugging points, in particular to an intelligent substation protection system and a function debugging method.

Background technique

As a new thing of the new generation of smart substation, station domain protection performs the main protection and backup protection functions within the substation, and is responsible for transmitting these intermediate measurement results to the upper-level wide-area protection unit, accepting and executing the decision-making results of the wide-area protection. The station area protection can be connected to the wide area protection system as a substation, which can not only protect the power equipment of the whole station, but also cooperate with the wide area protection system to protect the safety of the regional power grid. The station domain protection of the new generation of intelligent substation is very important as the backup protection of the main protection of the whole station. Multiple protections are highly integrated in one device and it is very complicated. Based on the importance and complexity of station domain protection, the single unit of station domain protection Debugging, network debugging and the correctness of the entire drive are very important.

However, at present, smart substations are still in their infancy in my country. Although the State Grid Corporation of China has proposed the commissioning specifications for relevant smart substations, the station domain protection devices and functional debugging methods for the new generation of smart substations are still basically in the blank stage. After searching the literature on the keywords of "smart substation*station domain protection*debugging", the technologies related to this patent mainly include the following aspects, but it does not involve the specific methods and key technical points of the station domain protection device and functional debugging. Unable to guide the development of specific debugging work.

Preliminary search for published technical literature in similar technical fields:

An intelligent and conventional substation optical fiber longitudinal differential protection channel joint debugging test method (CN102721882A), characterized in that: the intelligent and conventional substation optical fiber longitudinal differential protection channel joint debugging test method is based on the intelligent substation protection using optical IRIG-B code synchronous time synchronization method, conventional substation adopts GPS time synchronization method to complete multi-point synchronous acquisition and trigger test; during the test, the relay protection testers on both sides are connected to GPS clock and IRIG-B code clock respectively, and each Time information including day, hour, minute, second, etc. is sent at a frequency of 1 second. Advantages of the present invention: intelligent substation protection adopts optical IRIG-B code synchronous time synchronization mode, conventional substation adopts GPS time synchronization mode, and uses the above two clocks to complete synchronous sampling with protection and trigger synchronous sampling of testers on both sides, completing multiple Point synchronous acquisition and trigger test to realize the test of double-ended optical fiber current differential protection. The test method is simple and the data is accurate.

A station domain protection control device with protection and control functions in a substation (CN102856981B). The protection functions of the device include line protection, transformer protection, and busbar protection; the control functions include: standby automatic switching function and low-frequency load shedding function. The protection and control functions of the device are realized by several independent functional plug-ins, and different plug-ins complete different functions. The data information sharing between different functional plug-ins is realized through the internal 100M Ethernet network. When the busbar differential protection or transformer backup protection is activated, the standby automatic switching function is automatically blocked; when the protection function plug-in is activated, the low-frequency load shedding function is automatically blocked. Compared with the traditional protection device, the present invention can realize the functions of more than ten sets of independent protection and control devices in the substation through one set of devices, greatly reduces the cost of the protection and control device, and improves the coordination between protection and control functions Coordination ability.

A debugging method for station domain protection of an intelligent substation (CN104375501A), the specific debugging steps are: (1) debugging of a single station domain protection device; (2) debugging of station domain protection subsystems, including ①communication network system debugging, including Link test, VLAN division and isolation test, and network comprehensive performance test; ②Clock synchronization system debugging; ③Station domain protection entire drive test, including sampling value test, protection of the entire set of drives, and entire set of drive debugging; ④Monitoring system debugging. The present invention combines the commissioning experience of the 110kV new generation intelligent substation in Tianjin High-tech Park, summarizes the overall process of station domain protection commissioning, and analyzes the relevant key technical issues to obtain the commissioning method, which has strong operability and practicability.

After comparison, the disclosed prior art is quite different from the technical solution claimed in this patent application, and the technical problems they solve are different.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a scientific, reasonable, practical, stable and reliable intelligent substation domain protection system and a function debugging method.

The present invention solves its technical problem and realizes by taking the following technical solutions:

An intelligent substation station domain protection system, including comprehensive application server and monitoring host, station domain protection device, process layer central switch, 110kV line integration and protection device, main transformer integration and protection device, 10kV line integration and protection device, the comprehensive application server and monitoring host are connected to the process layer center switch through network cables, and the process layer center switch is respectively connected to the 110kV line integrated intelligence and protection device, the main transformer integrated intelligent integration and protection device, and the 10kV line integrated intelligent integration through network cables and protection device, and the process layer central switch and 110kV line integrated intelligent integration and protection device, main transformer integrated intelligent integration and protection device, and 10kV line integrated intelligent integration and protection device are respectively networked through GOOSE and SV messages, which are characterized in that : A station domain protection device is installed between the comprehensive application server and the monitoring host and the process layer central switch, and the station domain protection device and the comprehensive application server and the monitoring host are networked through MMS messages, and the station domain protection device and the process layer The central switches are networked through GOOSE and SV messages.

Moreover, the station domain control and protection device integrates the protection functions of the whole station, such as backup and automatic switching, line backup, main transformer low backup, failure protection and simple bus difference, as the redundant protection of the single protection of 110kV lines, realizing the whole Emergency control functions such as station backup self-switching, low-frequency low-voltage load shedding, etc., while optimizing the backup protection function on the low-voltage side of the main transformer to realize the 10kV simple busbar protection function.

Moreover, the three-in-one mode of SV, GOOSE, and MMS is adopted among the devices.

A debugging method for a station domain protection system of an intelligent substation, characterized in that: the details are as follows:

(1) Commissioning of station domain protection devices: Before system commissioning, individual protection device commissioning is carried out to verify the function of individual protection devices. Wave devices, network analyzers;

⑵Station domain protection sub-system debugging: On the basis of the qualified commissioning of the station domain protection device in step 1, carry out the sub-system networking and complete the whole group of test work of the station domain protection;

The equipment involved in sub-system debugging includes station domain protection devices, combined intelligent units, analog circuit breakers, etc. The main purpose of sub-system debugging is to detect whether the signal transmission between intelligent secondary equipment is correct and complete, and whether the soft/hard pressure plate is effective through fault simulation , the ultimate purpose is to check the correctness of the SCD configuration file and the reliability of the intelligent secondary equipment;

The method of sub-system debugging adopts the test method of single flow direction of device signal, and only verifies the output signal and related pressure plate for a single device;

(3) Monitoring system debugging: centering on the monitoring background, check the following functions through the monitoring host, data gateway machine and comprehensive application server: whether the drawing of the monitoring screen meets the operation requirements; whether the telemetry value of each interval can be correctly reflected; When uploading, whether the alarm window is reported and whether there is a display on the optical name plate; remote control operation of the switch knife switch that can be remotely controlled at each interval; Whether it is valid; whether the SNTP time synchronization is correct; whether the synchronous function is correct and effective; whether the comprehensive application server can correctly record the wave recording file and file list of the fault recorder, and the status alarm information of the protection device sent.

Moreover, the work of step (1) commissioning of the station domain protection device includes the following contents:

①Appearance inspection, working power supply, insulation performance and other items meet the requirements;

②The self-test function of the device is normal, including the self-test information of the device, the abnormal signal of the device and the signal of power loss;

③The amplitude and angle of the sampling value meet the requirements of the regulations;

④ SV, GOOSE virtual terminal test is correct;

⑤ The setting function is correct, the setting error meets the requirements, the protection routine logic function is normal, the protection trip matrix is correct, and the uniqueness and correctness of the soft and hard pressure plates are checked;

⑥ The device receives the clock synchronization signal normally, and the time synchronization accuracy error should not be greater than ±1ms;

⑦Fault recording and event recording function inspection.

Moreover, step (2) commissioning of the station domain protection subsystem includes the following commissioning:

①Communication network system debugging, adopt MMS, GOOSE, SV three-in-one transmission mode in this station, and use network analyzer, PC and other tools to detect and debug process layer switch and station control layer switch in this stage of debugging;

②Clock synchronization system debugging, smart substations have strict requirements on the unified timing of the clock, and unified and accurate time is an important measure to ensure the safe operation of the power system and improve the operation level. This stage mainly tests and debugs the synchronization function of the clock source, master-standby switching, timekeeping function and precision, and the synchronization of time-received devices to meet the needs of system operation.

③The transmission test of the whole group of station domain protection. During the whole group test of SV and GOOSE, the following two tasks are carried out at the same time:

a Sampling value test, the high-voltage side of this station adopts electronic transformers, collectors and combined intelligent unit configurations, and the low-voltage side adopts conventional transformers and combined smart unit configurations; high-voltage side SV sampling values can be sent using digital relay protection testers The collector outputs the analog function, and merges the intelligent unit to input the sampling value in FT3 format; the low-voltage side adopts a conventional relay protection tester, and merges the intelligent unit from the low-voltage side to input the analog sampling value; verify whether the connection of the SV virtual terminals on each side is correct, and check Whether the amplitude and phase accuracy of the analog quantity of the station domain protection device are qualified;

b. To protect the entire group of transmissions, carry out transmission tests one by one according to the setting values of each protection module in the station domain protection device to verify the protection function; by simulating typical faults, check the following functions: whether the protection operates correctly; whether the combined intelligent unit operation box operates correctly ; Whether the fault recording is correct; whether the monitoring background displays the protection action information correctly; whether the interlocking information between different protections is correct;

Moreover, step ①communication network system debugging, the specific content includes:

a Communication network physical link test, check the correct connection of the SV/GOOSE optical fiber link from the merged intelligent unit to the station domain protection device, the integrated device of the network analyzer, the monitoring background, and the digital relay protection tester, disconnect the merged intelligent For the working power supply of the unit or its optical fiber, check that the corresponding SV/GOOSE link disconnection alarm should appear in the protection device, and verify the correctness of the optical fiber link and the related functions of the device SV/GOOSE sending and receiving alarms;

b VLAN division and isolation test, divide the entire network based on the port VLAN, check the communication between the same VLAN and different VLANs during the test, and verify its isolation function, so as to ensure that the communication network is in the normal and fault conditions of each node network Communication reliability, data packet loss rate of each node, and network transmission delay should meet the specification requirements;

c Network comprehensive performance test. At this stage, the network analyzer is used to complete the relevant test work on the bandwidth, real-time performance, reliability, network storm, and message priority QoS functions of the communication network.

Advantage and positive effect of the present invention are:

1. The present invention includes a new generation of intelligent substation station domain protection debugging technology and station domain protection single debugging, network debugging, and the method of whole group transmission, which reduces the equipment maintenance work of operators and greatly reduces the arrangement of cables , and the wiring is simple and convenient, which effectively improves the installation efficiency, shortens the entire construction period, improves efficiency, and improves system operation stability.

3. The present invention adopts SV, GOOSE, and MMS three-network integration mode, so in the whole group test process of SV and GOOSE, the two tasks can be carried out at the same time, so as to simplify the work process, improve work efficiency, and shorten the debugging cycle.

2. After adopting this technology in the implementation of the 110kV substation project, the construction period has saved 8 man-days. More importantly, this technology has greatly improved the stability and reliability of the station domain protection, and can replace the main protection when the main protection fails to operate. The fault is removed to ensure the stable operation of the power system. At present, the results of this research are used in the commissioning of the 110kV substation domain protection in the high-tech park, and the commissioning personnel have successfully completed the commissioning task based on this technology.

Description of drawings

Figure 1 is a schematic diagram of the station domain protection system;

Figure 2 is a schematic diagram of the commissioning scheme of the station domain protection subsystem.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

A smart substation domain protection system and function debugging method

The substation area protection device (substation area protectc-tion) is installed in each relevant intelligent substation in the region, performs the main protection and backup protection functions within the substation range, and is responsible for transmitting these intermediate measurement results to the upper-level wide-area protection unit , means for receiving and executing the decision result of the wide area protection. That is to say, the station area protection device can be connected to the wide area protection system as a substation to protect the power equipment of the whole station, and can also cooperate with the wide area protection system to protect the safety of the regional power grid.

In this embodiment, the 110kV new-generation intelligent substation in Tianjin High-tech Park adopts a hierarchical protection control system and multi-functional measurement and control devices. The schematic diagram of the intelligent substation protection system is shown in Figure 1.

Comprehensive application server and monitoring host, station domain protection device, process layer central switch, 110kV line integration and protection device, main transformer integration and protection device, 10kV line integration and protection device,

The comprehensive application server and monitoring host are connected to the central switch at the process level through network cables, and the central switch at the process level is connected to the 110kV line integrated intelligence and protection device, the main transformer integrated intelligent integration and protection device, and the 10kV line integrated intelligent integration and protection device through network cables. And the process layer central switch and the 110kV line integrated intelligent integration and protection device, the main transformer integrated intelligent integration and protection device, and the 10kV line integrated intelligent integration and protection device are respectively networked through GOOSE and SV messages;

The innovation of this system lies in:

A station domain protection device is installed between the comprehensive application server and the monitoring host and the process layer center switch. The station domain protection device and the comprehensive application server and monitoring host are networked through MMS messages. Networking between switches through GOOSE and SV packets;

In this embodiment, the 110kV line adopts the protection measurement and control and non-gateway metering integration device, and the merging unit intelligent terminal integration device is used; the 10kV line adopts the all-in-one device integrating various functional equipment at the interval layer and the process layer; the whole station MMS, GOOSE and SV The packets are jointly networked.

Compared with conventional intelligent substations of the same scale, this station adopts electronic transformers and miniaturized switchgear equipment. In addition to the independent protection device of the whole station, a set of station domain control protection device is added. The station domain protection device will It integrates the protection functions of station backup and automatic switching, line backup, main transformer low backup, failure protection and simple bus differential protection, as the redundant protection of a single set of 110kV line protection, and realizes emergency backup and automatic switching of the whole station, low-frequency and low-voltage load shedding, etc. control function, and at the same time optimize the backup protection function on the low-voltage side of the main transformer to realize the 10kV simple busbar protection function. In addition, the station domain protection data collection and tripping outlets all adopt the networking mode.

Compared with traditional protection devices, this protection can realize the functions of more than ten sets of independent protection devices through one device, which greatly reduces the cost of protection configuration, reduces the equipment maintenance work of operators, and greatly reduces the number of cables The arrangement, and the wiring is simple and convenient, which effectively improves the installation efficiency and shortens the entire construction period.

The debugging method of the intelligent substation domain protection system is as follows:

(1) Commissioning of station domain protection devices: Before system commissioning, individual protection device debugging must be carried out to verify the function of the single protection device. The single device is mainly a combined intelligent unit, station domain protection device, fault The debugging work of wave recording device and network analyzer mainly includes the following contents:

①Appearance inspection, working power supply, insulation performance and other items meet the requirements;

②The device self-inspection function is normal, such as: device self-inspection information, device abnormal signal, power loss signal, etc.;

③The amplitude and angle of the sampling value meet the requirements of the regulations;

④ SV, GOOSE virtual terminal test is correct;

⑤ The setting function is correct, the setting error meets the requirements, the protection routine logic function is normal, the protection trip matrix is correct, and the uniqueness and correctness of the soft and hard pressure plates are checked;

⑥ The device receives the clock synchronization signal normally, and the time synchronization accuracy error should not be greater than ±1ms;

⑦Fault recording and event recording function inspection.

On the basis of the above, special attention should be paid to two aspects of the work: on the one hand, the inspection of parameters such as SV and GOOSE fiber power meets the requirements; Invalid, double AD inconsistency and other abnormalities affect the protection logic, and SV and GOOSE communication abnormalities affect the protection logic.

(2) Debugging of the station domain protection subsystem: the schematic diagram of the commissioning scheme of the station domain protection subsystem is shown in Figure 2;

On the basis of the single unit debugging of the station domain protection device in step ⑴, carry out the sub-system networking and complete the whole set of test work of the station domain protection;

The equipment involved in sub-system debugging includes station domain protection devices, combined intelligent units, analog circuit breakers, etc. The main purpose of sub-system debugging is to detect whether the signal transmission between intelligent secondary equipment is correct and complete, and whether the soft/hard pressure plate is effective through fault simulation . The ultimate purpose is to check the correctness of the SCD configuration file and the reliability of the intelligent secondary equipment device. On the one hand, the sub-system commissioning is to verify the design drawings, and on the other hand, it is also to test the construction quality and equipment quality. Whether the subsystem debugging is true or not plays a key role in the realization of the protection function and the reliable operation of the power grid.

Since there are many mutual transmission signals between devices, in order to make the debugging work clear and clear, the method of sub-system debugging adopts the test method of single flow direction of device signals, that is, for a single device, only the output signal and related pressure plate are verified.

①Communication network system debugging

The MMS, GOOSE, and SV three-network integration transmission mode is adopted in this station, which has the advantage of reducing the fiber configuration of the whole station, saving costs, and simplifying the entire network. The station domain protection system adopts the "net mining and network hopping" method, so the communication network is very important to the station domain protection function, and it is a part that needs special attention during the debugging process. In this stage of debugging, the network analyzer, PC and other tools are mainly used to detect and debug the process layer switch and the station control layer switch.

a Communication network physical link test

Check the correct connection of the SV/GOOSE optical fiber link between the combined intelligent unit and the station domain protection device, the integrated device of the network analyzer, the monitoring background, and the digital relay protection tester, disconnect the working power supply or the optical fiber of the combined intelligent unit, and check The corresponding SV/GOOSE link disconnection alarm should appear on the protection device to verify the correctness of the optical fiber link and the SV/GOOSE sending and receiving alarm related functions of the device.

b VLAN division and isolation (security) test

With the continuous increase of smart devices, the amount of data information in the whole station has increased dramatically, and the contention conflicts caused by the structural characteristics of Ethernet itself have caused the communication to "slow down" with the increase in the number of users. At the same time, the network broadcast mechanism determined by the nature of the TCP/IP protocol produces a large amount of useless network traffic whose destination address is the broadcast address, so the entire network is divided into port-based VLANs. During the test, check the communication between the same VLAN and different VLANs to verify its isolation function. So as to ensure that the communication network reliability of each node network communication, data packet loss rate of each node, and network transmission delay in the normal and faulty conditions of the communication network should meet the specification requirements

c network comprehensive performance test

At this stage, network analyzers and other equipment are mainly used to complete related testing work on communication network bandwidth (throughput), real-time performance (transmission delay), reliability (frame loss rate), network storm, and message priority QoS functions. , to ensure the safe and reliable operation of the communication network.

②Clock synchronization system debugging

Smart substations have strict requirements on the unified timing of the clock, and unified and accurate time is an important measure to ensure the safe operation of the power system and improve the operation level. This stage mainly tests and debugs the synchronization function of the clock source, master-standby switching, timekeeping function and precision, and the synchronization of time-received devices to meet the needs of system operation.

③Station domain protection whole group transmission test

Due to the adoption of SV, GOOSE, and MMS three-in-one mode, the two tasks can be carried out simultaneously during the entire test process of SV and GOOSE to simplify the work process, improve work efficiency, and shorten the debugging cycle.

a sample value test

The high-voltage side of this station adopts electronic transformers, collectors and combined intelligent unit configurations, and the low-voltage side adopts conventional transformers and combined smart unit configurations. Therefore, the high-voltage side SV sampling value transmission can be simulated by using the collector output of the digital relay protection tester Function, input the sampling value in FT3 format from the integrated intelligent unit; the low-voltage side uses a conventional relay protection tester, and inputs the analog sampling value from the integrated intelligent unit on the low-voltage side. Verify whether the connection of the SV virtual terminals on each side is correct, and check whether the amplitude and phase accuracy of the analog quantity of the station domain protection device are qualified.

b protect the entire transmission

According to the setting value of each protection module in the station area protection device, the transmission test is carried out one by one to verify the protection function. By simulating various typical faults, check the following functions: whether the protection operates correctly; whether the integrated intelligent unit operation box operates correctly; whether the fault recording is correct; Correct; whether the state of the maintenance pressure plate of the combined intelligent unit and protection device is corresponding. If the on-site conditions are available, the switch can be directly used to protect the transmission, and the scope of investigation is more comprehensive.

The following issues should be paid special attention to during the commissioning of the whole group of transmissions:

Influence of Invalid Quality Bit of Sampling Value on Protection Logic

If the cumulative quantity or frequency of the sampling value quality bit invalid flag exceeds the protection allowable range within the specified time range, the relevant protection functions should be blocked instantaneously and reliably, and the protection functions unrelated to the abnormality should be turned on normally. After the sampling value returns to normal, the blocked The protection function should be opened in time. During the test, the digital relay protection tester can be used to set the quality bits of some data channels in the sampling value to invalid according to different frequencies, and the quality bits of the sampling values sent by the analog merging unit are invalid.

Influence of Sampling Value Distortion on Protection Logic

There are generally dual A/D converters in the station domain protection and other protection devices to increase the reliability of the protection devices. In the protection logic, it is required that in the dual A/D sampling data, when the data of one of the sampling values is distorted, the relevant protection function should be blocked.

During the test, use a digital relay protection tester to simulate the distortion of part of the data of one of the sampling values in the dual A/D, and its quality bit is valid, respectively simulate the distortion value to decrease or increase to greater than the protection setting value, and verify the function of the protection device. Condition.

Inspection and maintenance mechanism test of relay protection device

The maintenance mechanism test of the relay protection device mainly includes:

a. The maintenance quality of the GOOSE and MMS messages of the protection device should be able to correctly reflect the input and withdrawal of the maintenance pressure plate of the protection device.

b. Only when the maintenance quality of the received SV message is consistent with the maintenance status of the device, the SV message will participate in the protection logic, otherwise the relevant protection functions will be blocked.

c. Only when the maintenance quality of the received GOOSE message is consistent with the maintenance status of the device, the GOOSE message will participate in the logic of the device, and vice versa, the relevant protection functions will be blocked.

The following methods are mainly used in the testing process:

a. Control the maintenance quality of GOOSE and MMS messages through the maintenance pressure plate of the throw-in protection device, and determine the correctness of the maintenance quality through the message analyzer.

b. Use the previous debugging plan to test the maintenance mechanism of SV and GOOSE, analyze the arrangement and combination of all secondary devices associated with it, and check the various input and withdrawal states of the pressure plate through combined maintenance, and verify the maintenance cooperation of protection devices and merged intelligent units The correctness of the mechanism.

⑶Monitoring system debugging

Taking the monitoring background as the center, check the following functions through the monitoring host, the data gateway in Zone I and the comprehensive application server: whether the drawing of the monitoring screen meets the operation requirements; whether the telemetry value of each interval can be correctly reflected; , whether the alarm window is reported, whether there is a display on the optical name plate; remote control operation of the switch knife switch that can be remotely controlled at each interval; Whether the SNTP time synchronization is correct; whether the synchronization function is correct and effective. Whether the comprehensive application server can correctly record the wave recording files and file lists of the fault recorder, and the status alarm information of the protection devices sent.

In the above debugging process, special attention should be paid to the testing work of the switching function of the fixed value area of the protective device, the remote modification function of the fixed value of the protective device, and the function of remote throwing and withdrawing the soft pressure plate.

With the development of a new generation of smart substations, the station domain protection function will be gradually applied and popularized. At present, most professional commissioning personnel have little understanding of the station domain protection concept and debugging methods and have no relevant debugging experience. This patent is based on actual engineering experience. This paper summarizes the overall process of the commissioning work of the new generation of smart substation station domain protection, analyzes the key issues in the commissioning process of each subsystem, and puts forward relevant commissioning opinions, which provides a basis for commissioning personnel to debug the station domain protection of the new generation of smart substations in the future. Certain thoughts and experiences.

Although the embodiments and drawings of the present invention are disclosed for the purpose of illustration, those skilled in the art can understand that various replacements, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims Therefore, the scope of the present invention is not limited to what is disclosed in the embodiments and drawings.

Claims (7)

1. territory, intelligent substation station protection system, comprise integrated application server and monitoring host computer, to stand territory protective device, process layer center switch, 110kV circuit closes intelligence one and protective device, main transformer closes intelligence one and protective device, 10kV circuit closes intelligence one and protective device, integrated application server and monitoring host computer are connected by netting twine with process layer center switch, process layer center switch connects 110kV circuit respectively by netting twine and closes intelligence one and protective device, main transformer closes intelligence one and protective device and 10kV circuit and closes intelligence one and protective device, and process layer center switch and 110kV circuit close intelligence one and protective device, main transformer closes intelligence one and protective device and 10kV circuit and closes intelligence one and protective device respectively by the networking of GOOSE and SV message, it is characterized in that being: at integrated application server and be provided with territory, a station protective device between monitoring host computer and process layer center switch, by the networking of MMS message between this territory, station protective device and integrated application server and monitoring host computer, stand between territory protective device and process layer center switch by the networking of GOOSE and SV message.

2. territory, intelligent substation station according to claim 1 protection system; it is characterized in that: territory, described station control protective unit by entirely stand prepared auto restart, circuit standby, the low standby of main transformer, failure protection and simple and easy mother difference etc. defencive function in one; as the protection of 110kV circuit list cover redundancy protecting, realize entirely standing the emergency control such as prepared auto restart, low-frequency low-voltage load shedding function, optimize the simple and easy bus protection function of main transformer low-pressure side backup protection functional realiey 10kV simultaneously.

3. territory, intelligent substation station according to claim 1 protection system, is characterized in that: have employed SV, GOOSE, MMS unification of three nets mode between device.

4. an adjustment method for territory, intelligent substation station protection system, is characterized in that: specific as follows:

(1) territory protective device of standing is debugged: before system debug, carry out protective device monomer debugging efforts, to verify the function of monomer protective device, monomer unit mainly protects relevant merging intelligent cell to territory, station, stand territory protective device, fault wave recording device, network analyzer;

(2) territory protection subsystem of standing debugging: debug on qualified basis in step territory, station protective device monomer (1), carry out subsystem networking and complete the whole group of test job protected in territory, station;

Subsystem is debugged the equipment related to and is comprised territory, station protective device, merges intelligent cell, mimic-disconnecting switch etc., the main purpose of subsystem debugging to detect between intelligent secondary device Signal transmissions by fault simulation correctly whether whether complete, soft/hard pressing plate is effective, and final purpose checks the correctness of SCD configuration file and the reliability of intelligent secondary device device;

The method of subsystem debugging adopts the method for testing of the single flow direction of device signal, only verifies that it outputs signal and associated platen for single device;

(3) supervisory control system debugging: to monitor centered by backstage, checks following functions by monitoring host computer, data network shutdown and integrated application server: whether the drafting of monitored picture meets service requirement; Correctly can reflect the remote measurement value at each interval; When have remote signals is sent time, whether alarm window is quoted, and whether alarm window has display; The switch tool of remote control straighforward operation can be carried out to each interval; A distant place is thrown and is moved back soft pressing plate, a distant place switches definite value district, definite value is revised in a distant place and whether distant place involution is effective; Whether correct during SNTP couple; Whether synchronization function is correct, effective; Integrated application server whether can correctly record trouble oscillograph recorded wave file and listed files, on the protective device state warning information that send.

5. the adjustment method of territory, intelligent substation station according to claim 4 protection system, is characterized in that: (1) the stand work of territory protective device debugging of step comprises following content:

The projects such as 1. visual examination, working power, insulation property meet the demands;

2. self-check of device function is normal, comprises self-check of device information, device abnormal signal and power supply disappearance of signal;

3. sampled value amplitude and angle meet regulatory requirements;

4. the test of SV, GOOSE empty terminal is correct;

5. fixed value adjusting function is correct, and definite value error meets the requirements, and protection regular logical function is normal, and trip protection matrix is correct, checks soft or hard pressing plate uniqueness and correctness;

6. device receive clock synchronizing signal is normal, pair time trueness error should be not more than ± 1ms;

7. failure wave-recording and event recording function inspection.

6. the adjustment method of territory, intelligent substation station according to claim 4 protection system, is characterized in that: step (2) stand territory protection subsystem debugging comprise following debugging:

1. communications network system debugging, adopts MMS, GOOSE, SV unification of three nets transmission means in our station, by using the tool detection such as network analyzer, PC debug process layer switch, station level switch in the debugging of this stage;

2. clock system debugging, intelligent substation is strict to requirement during unified pair of clock, and unified precise time ensures safe operation of power system, improves important measures of operation level.This stage mainly to the synchronizing function of clock source, active-standby switch, punctual function and punctual precision, by by time device synchronization situation test and debug, to meet system cloud gray model needs.

3. whole group of transmission test is protected in territory, station, and in SV, GOOSE whole group of test process, two work are carried out simultaneously below:

A sampled value is tested, and our station high-pressure side adopts the configuration of electronic mutual inductor, collector and merging intelligent cell, and low-pressure side adopts routine transformer, merges intelligent cell configuration; High-pressure side SV sampled value sends and the collector of digital relay protection tester can be used to export analog functuion, merges the sampled value of intelligent cell input FT3 form; Low-pressure side adopts conventional relay-protection tester, merges intelligent cell pass into analog sampling value from low-pressure side; Verify that whether the empty terminal line of each side SV is correct, whether amplitude and the phase accuracy of checking territory, station protective device analog quantity be qualified;

B protects whole group of transmission, carries out transmission test one by one, checking defencive function according to the definite value of adjusting of each protection module in the territory protective device of station; By simulation typical fault, check following functions: protect whether correct operation; Merge intelligent cell control box whether correct operation; Whether failure wave-recording correctly records ripple; Whether monitoring backstage correctly shows protection act information; Whether the connection locking information between different protection is correct; Whether the maintenance pressing plate state of merging intelligent cell, protective device is corresponding.

7. the adjustment method of territory, intelligent substation station according to claim 6 protection system, is characterized in that: step 1. communications network system debugging, and particular content comprises:

A communication network physical link is tested, check that merging intelligent cell is correct to the SV/GOOSE optical fiber link connection of stand territory protective device therefore record network analyzer integrated apparatus, monitoring backstage, digital relay protection tester, disconnect and merge intelligent cell working power or its optical fiber, should be there is corresponding SV/GOOSE chain rupture alarm in check protection device, the correct and device SV/GOOSE of checking optical fiber link receives and dispatches alarm correlation function;

B VLAN divides and isolation test, carry out dividing based on the VLAN of port to whole network, identical VLAN and different inter-vlan communication situation will be checked in test process, verify its isolation features, thus ensure communication network at electrical network under normal and failure condition each meshed network communication reliability, each node data packet loss, network transfer delay should meet code requirement;

The performance test of c network synthesis, this stage utilizes network analyzer to complete the dependence test work of bandwidth to communication network, real-time, reliability, network storm, message priority qos feature.