CN107707028B - Configuration file management and control method suitable for bus differential protection extension debugging of intelligent substation - Google Patents
Configuration file management and control method suitable for bus differential protection extension debugging of intelligent substation Download PDFInfo
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- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
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- Y04S10/16—Electric power substations
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Abstract
A configuration file management and control method suitable for bus differential protection extension debugging of an intelligent substation is disclosed. Analyzing a bus differential protection CID configuration file, and generating CRC (cyclic redundancy check) sub-check codes and total CRC check codes according to bus interval by bus layer configuration information of the bus differential protection CID configuration file; debugging the bus protection extension and updating a CID configuration file; generating CRC (Cyclic redundancy check) sub check codes and total CRC check codes at intervals; and judging whether CRC sub-check codes in the running interval are consistent or not. The configuration file management and control method suitable for bus differential protection extension debugging of the intelligent substation, provided by the invention, has the beneficial effects that: the automatic identification management and control configuration parameters can be guaranteed in the bus differential protection extension debugging process, the extension interval is guaranteed not to influence the operation interval in a software checking mode, therefore, the condition that the operation interval is not required to be subjected to an export transmission test after the extension interval is accessed is guaranteed, the short-time power failure is avoided, and the debugging work efficiency and the power supply reliability can be improved.
Description
Technical Field
The invention belongs to the technical field of intelligent substations, and particularly relates to a configuration file management and control method suitable for bus differential protection extension debugging of an intelligent substation.
Background
The intelligent substation adopts optical fibers to replace control cables in a conventional substation, digital communication of process layer information is achieved, and the defects that the process layer information of the conventional substation is difficult to share, the control cables are complex in wiring, equipment interoperability is poor, system expandability is poor and the like are overcome. In recent years, intelligent substations have entered into a comprehensive popularization and application stage from local demonstration construction, and communication technologies and equipment manufacturing standards thereof are continuously developed and perfected in the event.
At present, an intelligent substation which is put into operation in the early stage begins to enter a large-scale reconstruction and extension period. However, as the intelligent devices are communicated by optical fibers, internal logics of the intelligent devices are invisible, and communication interfaces of the intelligent devices are not clear, so that the problems of misoperation, error change and difficulty in finding are easily caused when configuration files of the intelligent devices are updated and downloaded, and hidden dangers are brought to later-stage substation operation and maintenance. Particularly for a bus differential protection device in an intelligent substation, when a bus is subjected to interval extension, in order to establish communication between bus differential protection and extension interval IED equipment, a CID file of the bus differential protection is inevitably updated and downloaded, and in the process, whether communication logic between the bus differential protection and an operating interval is changed or not is difficult to judge. In the actual operation process, the export transmission test is inevitably carried out on all bus intervals, so that the short-time power failure of the operation intervals is caused, and the power supply reliability is undoubtedly influenced.
Chinese patent application publication No. CN105227350A discloses a CRC check code-based intelligent substation IED configuration file management and control method. According to the method, the process layer virtual terminal configuration information of the intelligent secondary equipment is generated into the CRC check code, and under the condition that the total-station SCD model is changed, the changed intelligent secondary equipment can be distinguished and used for carding the mapping relation between the intelligent secondary equipment and the total-station SCD model, so that the debugging accuracy and reliability are improved. Although the method is convenient for maintaining the total station SCD model, for the inter-interval bus differential protection extension debugging, under the condition that the bus differential protection configuration file is confirmed to be changed, the change of the bus differential protection configuration file on each outgoing line interval cannot be distinguished, so that the accuracy and the reliability of the debugging are difficult to guarantee.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a configuration file management and control method suitable for bus differential protection extension debugging of an intelligent substation.
In order to achieve the above purpose, the configuration file management and control method suitable for bus differential protection extension debugging of the intelligent substation provided by the invention comprises the following steps in sequence:
step 1) analyzing a bus differential protection CID configuration file of an intelligent substation, and generating CRC (cyclic redundancy check) sub-check codes and total CRC check codes according to bus interval by bus configuration information of a bus differential protection process layer;
step 2) carrying out virtual terminal connection and debugging on the IED equipment of the bus extension interval and the bus differential protection, and updating a bus differential protection CID configuration file;
step 3) analyzing the updated bus differential protection CID configuration file, and generating CRC (cyclic redundancy check) sub-check codes and total CRC check codes according to bus interval by using bus differential protection process layer configuration information;
step 4) comparing the CRC check codes of the front and rear versions generated in the step 1) and the step 3), judging whether the CRC sub check codes of the running intervals are consistent, if not, indicating that the running intervals are affected by a certain reason in the bus extension debugging process, returning to the step 3), and rechecking and configuring a bus differential protection CID configuration file; if the bus extension is consistent with the operation interval, the bus extension does not affect the operation interval, and a transmission test is not needed to be carried out on the operation interval.
In step 1) and step 3), the parsing method of the mother difference protection CID configuration file is as follows:
1) analyzing the ID configuration file of the bus differential protection, and separating configuration information of a bus differential protection process layer, wherein the configuration information comprises SV information and GOOSE information facing each operation interval;
2) generating a CRC (cyclic redundancy check) sub-check code according to the running interval aiming at the process layer configuration information of each running interval of the busbar differential protection surface, wherein the CRC sub-check code is used for recording the parameter configuration and the communication logic of the CRC sub-check code;
3) the total CRC check code of the bus differential protection is generated by the CRC sub check codes of each operation interval, the sub check codes are mutually independent, and the extension debugging of the bus differential protection can not cause cross influence under the condition of no misoperation.
The configuration file management and control method suitable for bus differential protection extension debugging of the intelligent substation, provided by the invention, has the beneficial effects that: the automatic identification management and control configuration parameters can be guaranteed in the bus differential protection extension debugging process, the extension interval is guaranteed not to influence the operation interval in a software checking mode, therefore, the condition that the operation interval is not required to be subjected to an export transmission test after the extension interval is accessed is guaranteed, the short-time power failure is avoided, and the debugging work efficiency and the power supply reliability can be improved.
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Fig. 1 is a flowchart of a configuration file management and control method suitable for bus differential protection extension debugging of an intelligent substation provided by the invention.
Fig. 2 is a schematic diagram illustrating a parsing principle of a bus differential protection configuration file.
Detailed Description
The configuration file management and control method suitable for bus differential protection extension debugging of the intelligent substation provided by the invention is described in detail below with reference to the accompanying drawings and specific embodiments.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, the configuration file management and control method suitable for bus differential protection extension debugging of an intelligent substation provided by the present invention includes the following steps performed in sequence:
step 1) analyzing a bus differential protection CID configuration file of an intelligent substation, and generating CRC (cyclic redundancy check) sub-check codes and total CRC check codes according to bus interval by bus configuration information of a bus differential protection process layer;
step 2) carrying out virtual terminal connection and debugging on the IED equipment of the bus extension interval and the bus differential protection, and updating a bus differential protection CID configuration file;
step 3) analyzing the updated bus differential protection CID configuration file, and generating CRC (cyclic redundancy check) sub-check codes and total CRC check codes according to bus interval by using bus differential protection process layer configuration information;
step 4) comparing the CRC check codes of the front and rear versions generated in the step 1) and the step 3), judging whether the CRC sub check codes of the running intervals are consistent, if not, indicating that the running intervals are affected by a certain reason in the bus extension debugging process, returning to the step 3), and rechecking and configuring a bus differential protection CID configuration file; if the bus extension is consistent with the operation interval, the bus extension does not affect the operation interval, and a transmission test is not needed to be carried out on the operation interval.
As shown in fig. 2, in step 1) and step 3), the parsing method of the mother difference protection CID profile is as follows:
1) analyzing the ID configuration file of the bus differential protection, and separating configuration information of a bus differential protection process layer, wherein the configuration information comprises SV information and GOOSE information facing each operation interval;
2) generating a CRC (cyclic redundancy check) sub-check code according to the running interval aiming at the process layer configuration information of each running interval of the busbar differential protection surface, wherein the CRC sub-check code is used for recording the parameter configuration and the communication logic of the CRC sub-check code;
3) the total CRC check code of the bus differential protection is generated by the CRC sub check codes of each operation interval, the sub check codes are mutually independent, and the extension debugging of the bus differential protection can not cause cross influence under the condition of no misoperation.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (2)
1. A configuration file management and control method suitable for bus differential protection extension debugging of an intelligent substation is characterized by comprising the following steps of: the configuration file management and control method suitable for bus differential protection extension debugging of the intelligent substation comprises the following steps of:
step 1) analyzing a bus differential protection CID configuration file of an intelligent substation, and generating CRC (cyclic redundancy check) sub-check codes and total CRC check codes according to bus interval by bus configuration information of a bus differential protection process layer;
step 2) carrying out virtual terminal connection and debugging on the IED equipment of the bus extension interval and the bus differential protection, and updating a bus differential protection CID configuration file;
step 3) analyzing the updated bus differential protection CID configuration file, and generating CRC (cyclic redundancy check) sub-check codes and total CRC check codes according to bus interval by using bus differential protection process layer configuration information;
step 4) comparing the CRC check codes of the front and rear versions generated in the step 1) and the step 3), judging whether the CRC sub check codes of the running intervals are consistent, if not, indicating that the running intervals are affected by a certain reason in the bus extension debugging process, returning to the step 3), and rechecking and configuring a bus differential protection CID configuration file; if the bus extension is consistent with the operation interval, the bus extension does not affect the operation interval, and a transmission test is not needed to be carried out on the operation interval.
2. The configuration file management and control method suitable for bus differential protection extension debugging of the intelligent substation according to claim 1, characterized in that: in step 1) and step 3), the parsing method of the mother difference protection CID configuration file is as follows:
1) analyzing the ID configuration file of the bus differential protection, and separating configuration information of a bus differential protection process layer, wherein the configuration information comprises SV information and GOOSE information facing each operation interval;
2) generating a CRC (cyclic redundancy check) sub-check code according to the running interval aiming at the process layer configuration information of each running interval of the busbar differential protection surface, wherein the CRC sub-check code is used for recording the parameter configuration and the communication logic of the CRC sub-check code;
3) the total CRC check code of the bus differential protection is generated by the CRC sub check codes of each operation interval, the sub check codes are mutually independent, and the extension debugging of the bus differential protection can not cause cross influence under the condition of no misoperation.
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| CN108519929B (en) * | 2018-04-09 | 2021-03-05 | 江苏省电力试验研究院有限公司 | CRC (cyclic redundancy check) method and device for bus protection configuration management and control of intelligent substation |
| CN109213976A (en) * | 2018-09-13 | 2019-01-15 | 国网江苏省电力有限公司检修分公司 | The female poor reorganization and expansion configuration file otherness comparative approach of intelligent substation, system and equipment |
| CN110460152A (en) * | 2019-07-23 | 2019-11-15 | 湖北科技学院 | A kind of intelligent substation does not have a power failure newly-increased interval cut-in method |
| CN112363863A (en) * | 2020-10-12 | 2021-02-12 | 许继集团有限公司 | Relay protection device based on domestic chip and function configuration method and device thereof |
| CN112510826B (en) * | 2020-11-18 | 2023-02-03 | 中国南方电网有限责任公司 | Method for determining configuration change boundary of modification and extension intelligent recorder |
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| CN105069697A (en) * | 2015-07-31 | 2015-11-18 | 河北省电力建设调整试验所 | Intelligent transformer station maintenance strategy automatic identification system and method |
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| KR100843130B1 (en) * | 2007-01-30 | 2008-07-03 | 명지대학교 산학협력단 | Apparatus and method for diagnosing ied abnormal state on-line in substation automation system based on iec61850 |
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| CN203025257U (en) * | 2012-10-15 | 2013-06-26 | 杭州市电力局 | Relay protection automatic test system based on IEC61850 standard |
| CN103607051A (en) * | 2013-11-25 | 2014-02-26 | 国家电网公司 | Method and system for expanding transformer substation |
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