CN102821006B - Method for designing and testing virtual protection based on IEC61850 communication system - Google Patents
Method for designing and testing virtual protection based on IEC61850 communication system Download PDFInfo
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- CN102821006B CN102821006B CN201210275956.3A CN201210275956A CN102821006B CN 102821006 B CN102821006 B CN 102821006B CN 201210275956 A CN201210275956 A CN 201210275956A CN 102821006 B CN102821006 B CN 102821006B
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Abstract
The invention discloses a method for designing and testing virtual protection based on an IEC61850 communication system. The method comprises the following steps that: 1, a sampling value message published by a protection tester by means of a network is used as a failure signal source in virtual protection; 2, a data packet is circularly captured on the network in virtual protection; 3, the voltage current momentary values of channels in a 9-2 message are determined to be read in the virtual protection according to the connection mapping of a virtual terminal row and a protection tester terminal; 4, the extracted voltage current data automatically enters a judging and computing program of the virtual protection; 5, an action result of the judging and computing program and the extracted GOOSE input information automatically enter a logical judging program inlet of the virtual protection to trigger the logical judgment; and 6,the result is judged according to a logic in the virtual protection. The method has the following beneficial effects: by using the protection tester as the fault signal source of the virtual protection, the validity and the veracity of the testing process are ensured and the testing cost is reduced.
Description
Technical field
The present invention relates to a kind of based on the design of IEC61850 communication system virtual protection and method of testing.
Background technology
The test problems faced of current protective device comprises:
1. for the test of the protective relaying device based on pure hardware, entirely based on the protective device of reality, then connect coherent signal and simulate, the devices such as such as relay testing instrument.This mode is owing to adopting real protection, and validity is the highest, forms easily, but involves great expense, and very flexible, can only protect model for some simultaneously.
2. the problem of a signal source is faced at present for the test of the virtual protection device based on pure software; have the implementation method of data as virtual signal source of the emulated data of operational failure recorder data, simulation software or independently developed fault transient calculation procedure in existing technological means, but the authenticity of data cannot ensure.
3. current virtual protection design and development is also in the very primary stage; basic employing Programming Methodology; realize the demonstration of some simple protective functions, can not real artificial actual defencive function, real virtual protection design and the research and development of method of testing are also in space state at present.
4. the development of intelligent substation technology, in the urgent need to providing a kind of virtual protection based on intelligent substation communication technology to design and method of testing, at present, the research of this aspect is also in complete space state.
Summary of the invention
In order to solve the shortcoming that prior art exists, the invention provides based on the design of IEC61850 communication system virtual protection and method of testing.
For achieving the above object, the present invention adopts following technical scheme:
Based on the design of IEC61850 communication system virtual protection and method of testing, comprise the following steps:
Step 1: virtual protection using relay testing instrument through the IEC61850-9-2 sampling value message of Web Publishing as fault-signal source;
Step 2: virtual protection captures packet in network cocycle, and whether issues oneself according to this packet of mac address filter of place computer, to issuing oneself data analysis, extracts electric current and voltage and intake information, stored in buffer memory;
Step 3: virtual protection maps according to the connection of virtual terminal board and relay testing instrument terminal the electric current and voltage instantaneous value determining to read which passage in IEC61850-9-2 sampling value message, namely extracts the method for data in buffer memory;
Step 4: the electric current and voltage instantaneous value extracted enters the criterion calculation procedure of virtual protection automatically, provides the result of the action of action element;
Step 5: the result of the action and the GOOSE intake information extracted of criterion calculation procedure enter the Logic judgment program entry of virtual protection automatically, and Trigger Logic judges;
Step 6: the amount of outputing, according to Logic judgment result, is compiled as standard GOOSE form and is sent on network by virtual protection, by relay testing instrument filter receive after calculate the trip time, make the change that does well, realize the real-time cooperation of virtual protection with relay testing instrument.
The concrete steps of described step 1 are as follows:
1) relay testing instrument is according to the number of active lanes of the actual conditions configuration IEC61850-9-2 sampling value message of virtual protection and order;
2) relay testing instrument carries out optimum configurations, determines method of testing, simultaneous data-collecting card by server temporarily and relay testing instrument bind temporarily, with data collecting card independently occur, Received signal strength;
3) relay testing instrument sends test data and method of testing to data collecting card, and receives test result, and this communication is by Socket port, and ICP/IP protocol completes, and from DSP program, the effective value of electric current and voltage is become instantaneous value;
4) relay testing instrument sends just in real time, constantly through data collecting card and comprises the IEC61850-9-2 sampling value message of electric current and voltage instantaneous value and the packet of the GOOSE form amount of outputing, and these data is issued virtual protection, and waits for that virtual protection receives;
5) duration of each state should be greater than the twice in protection sampling period;
The concrete steps of described step 3 are as follows:
1) the virtual terminal board of virtual protection and relay testing instrument terminal all show in units of pel;
2) Topology connection of two pels is completed by line between terminal pel;
3) generate terminal according to topological connection relation and connect mapping table;
4) virtual protection chooses named variable according in connection mapping table to data buffer storage;
The concrete steps of described step 4 are as follows:
1) criterion calculation procedure has different program entries according to the difference of its criterion principle, and entrance adopts variable format;
2) the result of the action saves as Boolean type variable;
The concrete steps of described step 5 are as follows:
1) entrance of Logic judgment program divides two parts, and a part is the Boolean type variable that criterion calculation procedure exports; A part is the amount of outputing of the GOOSE exported through data collecting card from relay testing instrument, by the Boolean indirect assignment in GOOSE message;
2) Logic judgment program by the connection of logic pel under graphic model, can generate a logical function that can run automatically;
3) result that Logic judgment program is run saves as Boolean type variable;
Beneficial effect of the present invention:
1. adopt relay testing instrument as the fault-signal source of virtual protection, ensure validity and the accuracy of test process;
2., by the test data of network reception relay testing instrument, make multiple analogue system of being furnished with this virtual protection can share a signal source simultaneously, improve testing efficiency, reduce testing cost;
3. based on the test data of IEC61850 standard, integrate with the development trend of intelligent substation, facilitate expansion and the maintenance of following test macro;
4. the connection of virtual terminal board and relay testing instrument terminal achieves the wiring process of true protective device test;
5. the result of Logic judgment is issued as GOOSE message and returns relay testing instrument by virtual protection, achieves the real-time cooperation of virtual protection with relay testing instrument.
Accompanying drawing explanation
Fig. 1 is the flow chart of virtual protection test process.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, for IEC61850 communications protocol, concrete introduction is communication system virtual protection method of testing provided by the invention, and realization flow step is as follows:
Step 1: the IEC61850-9-2 sampling value message that virtual protection is issued using relay testing instrument through data collecting card is as fault-signal source;
1) relay testing instrument is according to the number of active lanes of the actual conditions configuration IEC61850-9-2 sampling value message of virtual protection and order;
2) relay testing instrument carries out optimum configurations, determines method of testing, simultaneous data-collecting card by server temporarily and relay testing instrument bind temporarily, with data collecting card independently occur, Received signal strength;
3) relay testing instrument sends test data and method of testing to data collecting card, and receives test result, and this communication is by Socket port, and ICP/IP protocol completes, and from DSP program, the effective value of electric current and voltage is become instantaneous value;
4) relay testing instrument sends just in real time, constantly through data collecting card and comprises the IEC61850-9-2 sampling value message of electric current and voltage instantaneous value and the packet of the GOOSE form amount of outputing, and these data is issued virtual protection, and waits for that virtual protection receives;
5) duration of each state should be greater than the twice in protection sampling period;
Step 2: virtual protection captures packet in network cocycle, and whether issues oneself according to this packet of mac address filter of place computer, to issuing oneself data analysis, extracts electric current and voltage and intake information, stored in buffer memory;
Step 3: virtual protection maps according to the connection of virtual terminal board and relay testing instrument terminal the electric current and voltage instantaneous value determining to read which passage of IEC61850-9-2 sampling value message, namely extracts the method for data in buffer memory;
1) the virtual terminal board of virtual protection and relay testing instrument terminal all show in units of pel;
2) Topology connection of two pels is completed by line between terminal pel;
3) generate terminal according to topological connection relation and connect mapping table;
4) virtual protection chooses named variable according in connection mapping table to data buffer storage;
Step 4: the electric current and voltage instantaneous value extracted enters the criterion calculation procedure of virtual protection automatically, provides the result of the action of action element;
1) criterion calculation procedure has different program entries according to the difference of its criterion principle, and entrance adopts variable format;
2) the result of the action saves as Boolean type variable;
Step 5: the result of the action and the GOOSE intake information extracted of criterion calculation procedure enter the Logic judgment program entry of virtual protection automatically, and Trigger Logic judges;
1) entrance of Logic judgment program divides two parts, and a part is the Boolean type variable that criterion calculation procedure exports; A part is the amount of outputing of the GOOSE exported through data collecting card from relay testing instrument, by the Boolean indirect assignment in GOOSE message;
2) Logic judgment program by the connection of logic pel under graphic model, can generate a logical function that can run automatically;
3) result that Logic judgment program is run saves as Boolean type variable;
Step 6: virtual protection is according to Logic judgment result; the amount of outputing is compiled as standard GOOSE form and is sent on data collecting card through network; calculate the results such as trip time after filtering reception by relay testing instrument, carry out state change, realize the real-time cooperation of virtual protection with relay testing instrument.
Claims (3)
1., based on the design of IEC61850 communication system virtual protection and method of testing, it is characterized in that, comprise the following steps:
Step 1: virtual protection using relay testing instrument through the IEC61850-9-2 sampling value message of Web Publishing as fault-signal source, specific as follows:
1-1) relay testing instrument is according to the number of active lanes of the actual conditions configuration IEC61850-9-2 sampling value message of virtual protection and order;
1-2) optimum configurations made by relay testing instrument, determines method of testing, simultaneous data-collecting card by server temporarily and relay testing instrument bind temporarily, with data collecting card independently occur, Received signal strength;
1-3) relay testing instrument sends test data and method of testing to data collecting card, and receives test result, and this communication is by Socket port, and ICP/IP protocol completes, and from DSP program, the effective value of electric current and voltage is become instantaneous value;
1-4) relay testing instrument sends just in real time, constantly through data collecting card and comprises the IEC61850-9-2 sampling value message of electric current and voltage instantaneous value and the packet of the GOOSE form amount of outputing, and these data is issued virtual protection, and waits for that virtual protection receives;
1-5) duration of each state should be greater than the twice in protection sampling period;
Step 2: virtual protection captures packet in network cocycle, and whether issues oneself according to this packet of mac address filter of place computer, to issuing oneself data analysis, extracts electric current and voltage and intake information, stored in buffer memory;
Step 3: virtual protection maps according to the connection of virtual terminal board and relay testing instrument terminal the electric current and voltage instantaneous value determining to read which passage in IEC61850-9-2 sampling value message, namely extracts the method for data in buffer memory, specific as follows:
3-1) the virtual terminal board of virtual protection and relay testing instrument terminal all show in units of pel;
3-2) complete the Topology connection of two pels by line between terminal pel;
3-3) generate terminal according to topological connection relation and connect mapping table;
3-4) virtual protection chooses named variable according in connection mapping table to data buffer storage;
Step 4: the electric current and voltage instantaneous value extracted enters the criterion calculation procedure of virtual protection automatically, provides the result of the action of action element;
Step 5: the result of the action and the GOOSE intake information extracted of criterion calculation procedure enter the Logic judgment program entry of virtual protection automatically, and Trigger Logic judges;
Step 6: the amount of outputing, according to Logic judgment result, is compiled as standard GOOSE form and is sent on network by virtual protection, by relay testing instrument filter receive after calculate the trip time, make the change that does well, realize the real-time cooperation of virtual protection with relay testing instrument.
2., as claimed in claim 1 based on the design of IEC61850 communication system virtual protection and method of testing, it is characterized in that: the concrete steps of described step 4 are as follows:
1) criterion calculation procedure has different program entries according to the difference of its criterion principle, and entrance adopts variable format;
2) the result of the action saves as Boolean type variable.
3., as claimed in claim 1 based on the design of IEC61850 communication system virtual protection and method of testing, it is characterized in that: the concrete steps of described step 5 are as follows:
1) entrance of Logic judgment program divides two parts, and a part is the Boolean type variable that criterion calculation procedure exports; A part is the amount of outputing of the GOOSE exported through data collecting card from relay testing instrument, by the Boolean indirect assignment in GOOSE message;
2) Logic judgment program by the connection of logic pel under graphic model, can generate a logical function that can run automatically;
3) result that Logic judgment program is run saves as Boolean type variable.
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Citations (3)
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| WO2009062535A1 (en) * | 2007-11-15 | 2009-05-22 | Siemens Aktiengesellschaft | Method and arrangement for protecting, controlling or monitoring an electrical switchgear or power supply station |
| CN101944770A (en) * | 2010-08-04 | 2011-01-12 | 浙江省电力公司 | Communication implementation method of virtual station grade IED mode between primary station and substation in fault information system 61850 |
| CN102033798A (en) * | 2010-10-20 | 2011-04-27 | 国电南瑞科技股份有限公司 | Method for simulating intelligent electronic device IEC61850/MMS (Microsoft media server) server |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009062535A1 (en) * | 2007-11-15 | 2009-05-22 | Siemens Aktiengesellschaft | Method and arrangement for protecting, controlling or monitoring an electrical switchgear or power supply station |
| CN101944770A (en) * | 2010-08-04 | 2011-01-12 | 浙江省电力公司 | Communication implementation method of virtual station grade IED mode between primary station and substation in fault information system 61850 |
| CN102033798A (en) * | 2010-10-20 | 2011-04-27 | 国电南瑞科技股份有限公司 | Method for simulating intelligent electronic device IEC61850/MMS (Microsoft media server) server |
Non-Patent Citations (2)
| Title |
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| OMICRON测试仪在数字化保护装置测试中的应用;何刚等;《电力系统保护与控制》;20100616;第38卷(第12期);同上 * |
| 变电站过程总线采样值传输仿真系统;莫峻等;《电力自动化设备》;20100510;第30卷(第05期);101-103 * |
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