CN204389604U - The network tester of intelligent substation Small Electric Current Earthing And Routing Device - Google Patents
The network tester of intelligent substation Small Electric Current Earthing And Routing Device Download PDFInfo
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- CN204389604U CN204389604U CN201420794503.6U CN201420794503U CN204389604U CN 204389604 U CN204389604 U CN 204389604U CN 201420794503 U CN201420794503 U CN 201420794503U CN 204389604 U CN204389604 U CN 204389604U
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Abstract
The utility model relates to secondary system of intelligent substation on-line monitoring technique field, provides a kind of network tester and method of intelligent substation Small Electric Current Earthing And Routing Device.Comprise one-phase earthing failure in electric distribution network analog module, data acquisition module, embedded microprocessor unit processing module, human-computer interaction module and PORT COM module.By accessing process layer net and the station level net of intelligent substation, can be implemented in the Site Detection of line to the route selection function of line selection apparatus.The occasion such as debugging examination, day-to-day operation maintenance, trouble hunting that the utility model is applicable to intelligent substation low-current ground fault line selection device very much uses.
Description
Technical field
The utility model relates to secondary system of intelligent substation on-line monitoring technique field, provides a kind of network tester of intelligent substation Small Electric Current Earthing And Routing Device.
Background technology
At present ripe gradually based on the intelligent substation technology of IEC-61850 standard and have the trend substituting rapidly traditional Substation Automation System, advance to 110kV, 35kV gradually from 500kV, 220kV.Singlephase earth fault is the fault type that in power distribution network, probability of happening is the highest, selects faulty line timely and accurately significant to the power supply reliability improving intelligent substation.For electric pressure 110kV and following intelligent substation, Small Electric Current Earthing And Routing Device is the important component part of secondary equipment of intelligent converting station, also has numerous corresponding solution at present.
The low-current ground fault line selection implementation of conventional substation is that the zero-sequence current of all circuits and the residual voltage of bus access line selection apparatus by secondary cable, line selection apparatus carries out data acquisition, then host CPU carries out data-storing and analytical calculation, and route selection result reports to be combined from backstage or dispatching center.In intelligent substation, the structure of electrical secondary system is " three layer of two net " structure under IEC61850 system, and intelligent substation adopts optical cable to replace cable in a large number.IEC61850-9-2 standard implementation digital signal network communication mode, the merge cells at each interval obtains the voltage and current signal that electronic mutual inductor collects, after converting digital signal to, be sent on switch by optical fiber, secondary device obtains data by switch and to go forward side by side row relax.For Small Electric Current Earthing And Routing Device, line selection apparatus only need possess an optical fiber interface or network interface just can obtain data, and the route selection result after analyzing and processing is connected station level net by another one optical fiber interface or network interface, and reports to certainly comprehensive.
Tradition transformer station generally adopts the mode of relay-protection tester for the on-the-spot test of Small Electric Current Earthing And Routing Device.The plurality of voltages current signal of Small Electric Current Earthing And Routing Device access relay-protection tester input carries out data collection and analysis and judges Output rusults.By to result comparison, verify the function of Small Electric Current Earthing And Routing Device.But for intelligent substation, traditional relay-protection tester cannot export the numerical information meeting IEC61850 standard, therefore cannot complete test function.
The full station intelligent terminal analogue means of the patent No. 201410158432.5 1 kinds of intelligent substations and using method thereof, describe and realize by simulated intelligence terminal the method that switching devices carries out testing, but do not mention the method for testing to wall secondary device.
The patent No. 201410004726.2 1 kinds is to the protective relaying device automatic test approach based on IEC61850 standard; describe and strengthen station level client functionality by importing SCD file; automatic imitation generates digital signal and issues protective relaying device and the method for test automatically, but does not mention the method being obtained SV sampled value by process-level network online.
Summary of the invention
The network tester of the intelligent substation Small Electric Current Earthing And Routing Device that the utility model provides, solving prior art cannot carry out in-circuit function test problem to intelligent substation Small Electric Current Earthing And Routing Device.
The utility model is by the following technical solutions:
The network tester of intelligent substation Small Electric Current Earthing And Routing Device, comprises one-phase earthing failure in electric distribution network analog module, data acquisition module, embedded microprocessor unit processing module, human-computer interaction module and PORT COM module; Described one-phase earthing failure in electric distribution network analog module one end is connected with data acquisition module, and the other end is connected with embedded microprocessor unit processing module; Described data acquisition module one end is connected with one-phase earthing failure in electric distribution network analog module, and the other end is connected with embedded microprocessor unit processing module; Described embedded microprocessor unit processing module is connected with one-phase earthing failure in electric distribution network analog module, data acquisition module respectively, human-computer interaction module and PORT COM model calling.Described PORT COM module has 2 set of network interfaces, and one group is connected by the switch of netting twine with process layer net, and other one group is connected by the switch of netting twine with station level net.
As mentioned above, one-phase earthing failure in electric distribution network analog module, it is characterized in that, be made up of analogue zero sequence network circuit and simulation zero sequence power control loop, wherein analogue zero sequence network circuit is connected to form by the equivalent circuit model head end of multichannel " Π " type, and circuit exports access data acquisition module by Current Transformer Secondary side; Simulation zero sequence power control loop is connected with embedded main board processing module.
As mentioned above, embedded microprocessor unit processing module, is characterized in that, embedded main board hardware structure is made up of MCU module, DSP module and FPGA module.Wherein MCU module is key control unit, controls human-computer interaction module, power distribution network single-phase earthing analog module and PORT COM module; DSP module is data processing unit, receives the signal of process data acquisition module; FPGA module carries out Message processing;
As mentioned above, human-computer interaction module, is characterized in that, can arrange faulty line, failure time interval, fault type;
As mentioned above, embedded main board processing module, is characterized in that, MCU module by the route selection results contrast of the command file of human-computer interaction module and acquisition, display testing result.
The network test method of intelligent substation Small Electric Current Earthing And Routing Device specifically comprises the following steps:
Step one, according to the annexation of field condition configuration network tester and system;
Step 2, arranges faulty line, fault-time, fault type;
Step 3, the rule file of configuration embedded microprocessor unit processing module;
Step 4, the port of configuration PORT COM module;
Step 5, according to the route selection result message Determination line selection apparatus function arranging file and PORT COM and receive.
Described step one, the process according to the annexation of field condition configuration network tester and system is specially:
Determine network tester with intelligence become process-level network switch, the station level network switch physical couplings;
Described step 2, arrange faulty line, fault-time, fault type process be specially:
Arrange faulty line parameter, faulty line configuration and intelligence become the quantity of the monitored circuit that Small Electric Current Earthing And Routing Device accesses and number corresponding;
Arrange parameter fault-time, fault-time, setting was not more than 2 hours;
Arrange fault type parameter, fault type is divided into 3 classes, metallic earthing fault, intermittent grounding fault and high resistance earthing fault;
Described step 3, the process of the rule file of configuration embedded microprocessor unit processing module is specially:
Importing arranges file, forms specific detected rule;
Described step 4, the process of the port of configuration PORT COM module is specially:
Specific IP address or MAC Address access procedure layer network switch and the station level network switch are set;
Described step 5, the process according to arranging the route selection result message Determination line selection apparatus function that file and PORT COM receive is specially:
According to the detected rule formed, differentiate that whether accurate route selection is;
According to the detected rule formed, whether the Judging fault time interval is consistent;
According to detected rule, differentiate that result and message accounting generate test report file.
The beneficial effects of the utility model are: the advantage of the network tester of intelligent substation Small Electric Current Earthing And Routing Device of the present utility model is: 1, by process layer net and the station level net of access intelligent substation, can carry out on-the-spot test online to the route selection function of intelligence change low-current ground fault line selection device; 2, different fault types can be set online and show detection route selection result in real time.3, functional test can be carried out to same multiple stage line selection apparatus online, or functional test is carried out to the line selection apparatus of different model and principle.
Accompanying drawing explanation
Accompanying drawing 1 is the composition structural drawing of intelligent substation Small Electric Current Earthing And Routing Device network tester;
Accompanying drawing 2 is intelligent substation Small Electric Current Earthing And Routing Device network test instrument system connection layout;
Accompanying drawing 3 is intelligent substation Small Electric Current Earthing And Routing Device network test method process flow diagram.
Embodiment
In order to clearer explaination advantage of the present utility model, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.List a lot of instantiation in the following description to fully understand advantage of the present utility model, but the utility model can also adopt other to be different from other modes described here and implement, and therefore the utility model is not limited to the restriction of following public instantiation.
The network tester of the intelligent substation Small Electric Current Earthing And Routing Device that the utility model provides, as shown in Fig. 1-Fig. 2.
Comprise one-phase earthing failure in electric distribution network analog module, data acquisition module, embedded microprocessor unit processing module, human-computer interaction module and PORT COM module; Described one-phase earthing failure in electric distribution network analog module one end is connected with data acquisition module, and the other end is connected with embedded microprocessor unit processing module; Described data acquisition module one end is connected with one-phase earthing failure in electric distribution network analog module, and the other end is connected with embedded microprocessor unit processing module; Described embedded microprocessor unit processing module is connected with one-phase earthing failure in electric distribution network analog module, data acquisition module respectively, human-computer interaction module and PORT COM model calling.Described PORT COM module has 2 set of network interfaces, and one group is connected by the switch of netting twine with process layer net, and other one group is connected by the switch of netting twine with station level net.
As mentioned above, one-phase earthing failure in electric distribution network analog module, it is characterized in that, be made up of analogue zero sequence network circuit and simulation zero sequence power control loop, wherein analogue zero sequence network circuit is connected to form by the equivalent circuit model head end of multichannel " Π " type, and circuit exports access data acquisition module by Current Transformer Secondary side; Simulation zero sequence power control loop is connected with embedded main board processing module.
As mentioned above, embedded microprocessor unit processing module, is characterized in that, embedded main board hardware structure is made up of MCU module, DSP module and FPGA module.Wherein MCU module is key control unit, controls human-computer interaction module, power distribution network single-phase earthing analog module and PORT COM module; DSP module is data processing unit, receives the signal of process data acquisition module; FPGA module carries out Message processing.
As mentioned above, human-computer interaction module, is characterized in that, can arrange faulty line, failure time interval, fault type.
As mentioned above, embedded main board processing module, is characterized in that, MCU module by the route selection results contrast of the command file of human-computer interaction module and acquisition, display testing result.
The network test method of the intelligent substation Small Electric Current Earthing And Routing Device that the utility model provides, specifically comprises the following steps, as shown in Figure 3:
Step one, according to the annexation of field condition configuration network tester and system;
Step 2, arranges faulty line, fault-time, fault type;
Step 3, the rule file of configuration embedded microprocessor unit processing module;
Step 4, the port of configuration PORT COM module;
Step 5, according to the route selection result message Determination line selection apparatus function arranging file and PORT COM and receive.
Described step one, the process according to the annexation of field condition configuration network tester and system is specially:
Determine network tester with intelligence become process-level network switch, the station level network switch physical couplings.
Described step 2, arrange faulty line, fault-time, fault type process be specially:
Arrange faulty line parameter, faulty line configuration and intelligence become the quantity of the monitored circuit that Small Electric Current Earthing And Routing Device accesses and number corresponding;
Arrange parameter fault-time, fault-time, setting was not more than 2 hours;
Arrange fault type parameter, fault type is divided into 3 classes, metallic earthing fault, intermittent grounding fault and high resistance earthing fault.
Described step 3, the process of the rule file of configuration embedded microprocessor unit processing module is specially:
Importing arranges file, forms specific detected rule.
Described step 4, the process of the port of configuration PORT COM module is specially:
Specific IP address or MAC Address access procedure layer network switch and the station level network switch are set.
Described step 5, the process according to arranging the route selection result message Determination line selection apparatus function that file and PORT COM receive is specially:
According to the detected rule formed, differentiate that whether accurate route selection is;
According to the detected rule formed, whether the Judging fault time interval is consistent;
According to detected rule, differentiate that result and message accounting generate test report file.
Above-described embodiment is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment, equivalent variations, improvement etc. done, all should be included within protection domain of the present utility model.
Claims (2)
1. a network tester for intelligent substation Small Electric Current Earthing And Routing Device, is characterized in that: comprise one-phase earthing failure in electric distribution network analog module, data acquisition module, embedded microprocessor unit processing module, human-computer interaction module and PORT COM module; Specifically:
Described one-phase earthing failure in electric distribution network analog module one end is connected with data acquisition module, and the other end is connected with embedded microprocessor unit processing module;
Described data acquisition module one end is connected with one-phase earthing failure in electric distribution network analog module, and the other end is connected with embedded microprocessor unit processing module;
Described embedded microprocessor unit processing module is connected with one-phase earthing failure in electric distribution network analog module, data acquisition module respectively, human-computer interaction module and PORT COM model calling;
Described PORT COM module has 2 set of network interfaces, and one group is connected by the switch of netting twine with process layer net, and other one group is connected by the switch of netting twine with station level net.
2. the network tester of intelligent substation Small Electric Current Earthing And Routing Device according to claim 1, is characterized in that:
Described one-phase earthing failure in electric distribution network analog module, be made up of analogue zero sequence network circuit and simulation zero sequence power control loop, wherein analogue zero sequence network circuit is connected to form by the equivalent circuit model head end of multichannel " Π " type, and circuit exports access data acquisition module by Current Transformer Secondary side; Simulation zero sequence power control loop is connected with embedded microprocessor unit processing module;
Described embedded microprocessor unit processing module, embedded main board hardware structure is made up of MCU module, DSP module and FPGA module; Wherein MCU module is key control unit, controls human-computer interaction module, power distribution network single-phase earthing analog module and PORT COM module; DSP module is data processing unit, receives the signal of process data acquisition module; FPGA module carries out Message processing;
Described human-computer interaction module, can arrange faulty line, failure time interval, fault type;
Described embedded microprocessor unit processing module, MCU module by the route selection results contrast of the command file of human-computer interaction module and acquisition, display testing result.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785149A (en) * | 2014-12-16 | 2016-07-20 | 东北电力大学 | Network tester for undercurrent grounding line selection apparatus of smart substation and network testing method therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785149A (en) * | 2014-12-16 | 2016-07-20 | 东北电力大学 | Network tester for undercurrent grounding line selection apparatus of smart substation and network testing method therefor |
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| CB03 | Change of inventor or designer information |
Inventor after: An Jun Inventor after: Yang Jingjing Inventor after: Luan Guojun Inventor after: Wang Tao Inventor after: Dai Wuchang Inventor after: Zhang Tao Inventor after: Lv Xuebin Inventor after: Peng Yonglei Inventor after: Zhang Fan Inventor before: An Jun Inventor before: Yang Jingjing Inventor before: Luan Guoping Inventor before: Wang Tao Inventor before: Dai Wuchang Inventor before: Zhang Tao Inventor before: Lv Xuebin Inventor before: Peng Yonglei Inventor before: Zhang Fan |
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Free format text: CORRECT: INVENTOR; FROM: AN JUN YANG JINGJING LUAN GUOPING WANG TAO DAI WUCHANG ZHANG TAO LV XUEBIN PENG YONGLEI ZHANG FAN TO: AN JUN YANG JINGJING LUAN GUOJUN WANG TAO DAI WUCHANG ZHANG TAO LV XUEBIN PENG YONGLEI ZHANG FAN |
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Granted publication date: 20150610 Termination date: 20151216 |
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