CN103426128A - Self-adaptation relay protection constant value switching method based on power distribution network dispatching system - Google Patents
Self-adaptation relay protection constant value switching method based on power distribution network dispatching system Download PDFInfo
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- CN103426128A CN103426128A CN2013103828211A CN201310382821A CN103426128A CN 103426128 A CN103426128 A CN 103426128A CN 2013103828211 A CN2013103828211 A CN 2013103828211A CN 201310382821 A CN201310382821 A CN 201310382821A CN 103426128 A CN103426128 A CN 103426128A
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Abstract
The invention relates to a relay protection constant value switching method, in particular to a self-adaptation relay protection constant value switching method based on a power distribution network dispatching system. The method can automatically prompt devices whose constant values probably need switching and also can carry out remote switching according to change of operation methods automatically. The method includes the steps of 1, forming a corresponding relationship table, 2, obtaining power grid operating method data, 3, matching, 4, calling, and 5, verification and carrying out corresponding processing according to verification results at last. According to the method, self-adaptation protection information switching prompts on secondary devices can be achieved after operating methods of primary devices are changed and adjusted in a quick, simple and efficient mode, and namely, data 'coming and going' (matching, calling, verifying and prompting) are carried out between a far end and a master station by utilizing characteristic serial numbers. The method is good in adaptability and high in reliability.
Description
Technical field
The invention belongs to field of relay protection in power, particularly a kind of method of relay protection constant value self-adaptation switching.
Background technology
As the first line of defence of power system security reliability service, protective relaying device acts on great in operation of power networks, and can protective device bring into play maximum effect, largely depends on accurately adjusting and configuring of protection definite value.But, during current power system operating mode and change, for a certain protection of determining, the mode that a set of definite value can not Adaptive change, therefore the cooperation of protection and the timely adjustment of definite value seem particularly important.In recent years; the concept that relay protection constant value on-line tuning and self-adaptation are adjusted is proposed both at home and abroad in succession; due to these mostly based on the advanced intelligent algorithm to realize adjusting in real time and adjusting of definite value; although protection domain is optimized very much; but it is large to implement technical difficulty, poor operability under current its development.
On the other hand; traditionally; the high efficiency of carrying out in order to improve the protection definite value; usually for foreseeable mode, change; protection personnel a set of standby definite value of adjusting in advance; adjust rear management and running personnel and switch in time in order to mode, this is particularly common in distribution network systems, such as circuit enlarge service area, switch maintenance by bypass replacement for, circuit closes and unlinks etc. hand in hand.Protection domain has also been optimized in the existence of this standby definite value to a certain extent, but there is very large drawback in this traditional manual switching, such as artificial ageing, the accuracy of carrying out etc. can't be guaranteed.In addition, applying of power distribution automation, can realize soon the switching of primary equipment, but secondary device does not still have efficient means to carry out adaptive change, (situation of prior art is: the repair and maintenance personnel need first calculate new fixed value list, then to on-the-spot, secondary device is operated the input definite value).
Therefore, in order to meet the needs of electrical network intelligent development, in line with actual application demand, be necessary to propose a kind of self-adaptation relay protection constant value changing method to improve operation of power networks efficiency and safety.
Summary of the invention
The present invention is directed to above problem; a kind of self-adaptation relay protection constant value changing method based on the power distribution network dispatching system is provided, has reduced to greatest extent artificial participation, can be automatically according to the variation of the method for operation; automatic-prompting may need the definite value of the equipment of switching, and carries out long-range switching.
Technical scheme of the present invention is: described power distribution network dispatching system comprises main website, with described main website, is connected with some substations, in described substation, be provided with and primary equipment protective relaying device one to one,
Carry out according to the following steps:
1), according to the running status of the primary equipment that there is protective relaying device in electrical network, definite value to the protective relaying device corresponding with described primary equipment is carried out feature number, and described feature number comprises unique ID code and the method for operation code of described protective relaying device; Again described feature number is corresponding in the definite value under different running method with described primary equipment, as the Back ground Information that calls of this definite value;
Then, integrate all described feature number and running status, form the method for operation of primary equipment and the one-to-one relationship table of protective relaying device definite value information, described mapping table is write to described main website;
2), obtain the power system operating mode data; The running state data information that primary equipment in electrical network is changed;
3) the running state data information, changed according to primary equipment matches feature number in aforementioned mapping table;
4), according to the described unique ID code in the feature number of front step coupling, send calling, determine that the protective relaying device corresponding with described unique ID code also beam back main website by the feature number of its current running status;
5), the feature number of current running status that upper step is obtained carries out verification, whether the feature number in the verification mapping table consistent with the feature number of current running status;
6), as inconsistent, go step 7), as unanimously, finish;
7), the long-range switching definite value of prompting operations staff;
8), finish.
In the mapping table of described step 1), unique ID code and method of operation code are divided into two kinds of application modes, comprise that the ID code uses, for sending the calling instruction; Unique ID code and method of operation code application mode, for verification.
Described step 2) it is that switch, disconnecting link automatically trigger and obtain when displacement information is arranged that the power system operating mode data in only change in the method for operation.
The present invention can be after power system operating mode changes; the automatic trigger mode of operation switch changed position of system information; and the corresponding fixed value list number information of the real-time running state of retrieving the relay protection device that this mated equipment is corresponding as feature in the fixed value list mapping table; then definite value number information in long-range calling protective device; and whether verification is consistent; if inconsistent, point out the management and running personnel, confirm to check rear remotely modifying definite value district by the management and running personnel.
The present invention adopts fast, simple, efficient mode; in the changes of operating modes of primary equipment, adjust after; secondary device is realized to adaptive protection information switch prompting, utilize feature number in the distance and carry out " contact (coupling, calling, verification, prompting) " of data between main website.Adaptability of the present invention is good, and reliability is high.
The accompanying drawing explanation
Fig. 1 is workflow diagram of the present invention;
Fig. 2 is fundamental diagram of the present invention;
In figure, two chain line left side is the secondary device side for primary equipment side, right side; In figure, the arc dotted line means signal transmission path.
Embodiment
Further illustrate the present invention below in conjunction with Fig. 1,2, the power distribution network dispatching system comprises main website, with described main website, is connected with some substations, in described substation, be provided with and primary equipment protective relaying device one to one,
Carry out according to the following steps:
1), according to the primary equipment that there is protective relaying device in electrical network (as some switches in Fig. 2 bottom double dot dash line left side, be to there is the equipment that has protection definite value switching to need in the related electrical network of this case) running status, definite value to the protective relaying device corresponding with primary equipment (protective relaying device corresponding with switch in substation, double dot dash line right side, Fig. 2 bottom) is carried out feature number, and described feature number comprises unique ID code and the method for operation code of described protective relaying device; Again described feature number is corresponding in the definite value under different running method with described primary equipment, as the Back ground Information that calls of this definite value;
Then, integrate all described feature number and running status, form the method for operation of primary equipment and the one-to-one relationship table of protective relaying device definite value information, described mapping table is write to described main website; As in main website form in Fig. 1 the middle part content, method of operation critical data information, expression be the various states of each switch; The fixed value list feature number, expression be exactly aforementioned feature number, in Fig. 1 top main website form, the straight dotted line representation feature on corresponding hurdle coding can separate in use, merge, and on the left of dotted line, is the ID code, right side is method of operation code (such as, splitting or integrating).
2), obtain the power system operating mode data; The running state data information that primary equipment in electrical network is changed; Current power distribution network dispatching system possesses such function, is exactly in fact the opening and closing status information of switch, disconnecting link;
3) the running state data information, changed according to primary equipment matches feature number in aforementioned mapping table; In Fig. 1, obtained a change information " switch second one is closed ", system, according to mapping table, obtains feature number " 20130580 ", uses its prefix ID code " 2013058 ";
4), according to the described unique ID code (2013058) in the feature number of front step coupling, send calling, determine the protective relaying device corresponding with described unique ID code and the feature number of its current running status (" 20130580 " or " 20130580 ") is beamed back to main website;
5), the feature number of current running status that upper step is obtained carries out verification, whether the feature number in the verification mapping table consistent with the feature number of current running status; Be exactly in fact by the current feature number of obtaining in step 4), carry out verification with the feature number of obtaining in the middle of step 3) " 20130580 ", contrast;
6), as inconsistent, go step 7); As unanimously, finish;
7), the long-range switching definite value of prompting operations staff;
8), finish.
In the mapping table of described step 1), unique ID code and method of operation code are divided into two kinds of application modes, comprise that the ID code uses, for sending the calling instruction; Unique ID code and method of operation code application mode, for verification.
Described step 2) it is that switch, disconnecting link automatically trigger and obtain when displacement information is arranged that the power system operating mode data in only change in the method for operation.
The present invention utilizes the open3200 energy management system of electrical power distribution automatization system automatically the critical data information got to be mated in the definite value mapping table, to determine the feature number of fixed value list.Then, the system automatic remote obtains definite value information in protective device.Again verification table look-up coupling definite value information with install in information whether consistent; Finally, according to check results, whether system prompt needs to change definite value, and as needs, long-range switching protection definite value district after the operations staff confirms, if do not needed, keep former definite value constant.
The present invention is by the coupling switching of fixed value list automatic look-up table, solved the work that traditional definite value manual switching or automatic switchover (but need note comparison, determine all data of fixed value list) bring numerous and diverse, not in time and the drawback of easily makeing mistakes.The method is specially: set up the method for operation and fixed value list mapping table, obtain the power system operating mode data, according to method of operation key feature data lookup table coupling fixed value list, obtain definite value information in protective device, whether the table look-up fixed value list of coupling of verification is consistent with the definite value information in protecting, if inconsistent, send prompt alarm information, confirm long-range switching definite value district by the management and running personnel; If consistent, maintain original value information constant.By this invention, can realize succinctly, efficiently the self-adaptation switching of standby definite value when power system operating mode is adjusted, improve efficiency, guaranteed the accuracy that the protection definite value is carried out.
Above embodiment only, for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought proposed according to the present invention, and any change of doing on the technical scheme basis, within all falling into protection domain of the present invention.
Claims (3)
1. the self-adaptation relay protection constant value changing method based on the power distribution network dispatching system, described power distribution network dispatching system comprises main website, with described main website, is connected with some substations, in described substation, be provided with and primary equipment protective relaying device one to one,
It is characterized in that, carry out according to the following steps:
1), according to the running status of the primary equipment that there is protective relaying device in electrical network, definite value to the protective relaying device corresponding with described primary equipment is carried out feature number, and described feature number comprises unique ID code and the method for operation code of described protective relaying device; Again described feature number is corresponding in the definite value under different running method with described primary equipment, as the Back ground Information that calls of this definite value;
Then, integrate all described feature number and running status, form the method for operation of primary equipment and the one-to-one relationship table of protective relaying device definite value information, described mapping table is write to described main website;
2), obtain the power system operating mode data; The running state data information that primary equipment in electrical network is changed;
3) the running state data information, changed according to primary equipment matches feature number in aforementioned mapping table;
4), according to the described unique ID code in the feature number of front step coupling, send calling, determine that the protective relaying device corresponding with described unique ID code also beam back main website by the feature number of its current running status;
5), the feature number of current running status that upper step is obtained carries out verification, whether the feature number in the verification mapping table consistent with the feature number of current running status;
6), as inconsistent, go step 7), as unanimously, finish;
7), the long-range switching definite value of prompting operations staff;
8), finish.
2. the self-adaptation relay protection constant value changing method based on the power distribution network dispatching system according to claim 1, it is characterized in that, in the mapping table of described step 1), unique ID code and method of operation code are divided into two kinds of application modes, comprise that the ID code uses, for sending the calling instruction; Unique ID code and method of operation code application mode, for verification.
3. the self-adaptation relay protection constant value changing method based on the power distribution network dispatching system according to claim 1; it is characterized in that described step 2) in the power system operating mode data only in the method for operation, to change be that switch, disconnecting link automatically trigger and obtain when displacement information is arranged.
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|---|---|---|---|---|
| CN104052015A (en) * | 2014-06-20 | 2014-09-17 | 国家电网公司 | Relay protection device definite value region remote switching method |
| CN104242222A (en) * | 2014-05-20 | 2014-12-24 | 阳江核电有限公司 | Method and system for processing relay protection setting value of nuclear power plant generator-transformer unit |
| CN106129972A (en) * | 2016-06-28 | 2016-11-16 | 南宁华供电力科技有限公司 | A kind of two-parameter electric relay protection technology |
| CN106451377A (en) * | 2016-11-02 | 2017-02-22 | 国家电网公司 | Constant value region remote switching security checking method of relay protection device |
| CN106532660A (en) * | 2016-10-31 | 2017-03-22 | 云南电网有限责任公司 | Master station system with relay setting change, remote system and control method |
| CN107392449A (en) * | 2017-07-05 | 2017-11-24 | 广西电网有限责任公司玉林供电局 | Relay protection constant value list generation method and device |
| CN108183460A (en) * | 2017-12-29 | 2018-06-19 | 国网天津市电力公司电力科学研究院 | A kind of power distribution network adaptive guard setting method based on correlation rule study |
| CN110323722A (en) * | 2019-06-12 | 2019-10-11 | 国网河北省电力有限公司 | A kind of cross-iteration method of relay protection information identification |
| CN110323723A (en) * | 2019-06-12 | 2019-10-11 | 国网河北省电力有限公司 | A kind of relay protection information recognition methods based on feature coding |
| CN111130061A (en) * | 2019-12-05 | 2020-05-08 | 国网辽宁省电力有限公司锦州供电公司 | Remote switching control method for relay protection device constant value area |
| CN113328521A (en) * | 2021-05-31 | 2021-08-31 | 广东电网有限责任公司 | Edge processing method, device and equipment for power switch state and storage medium |
| CN113328523A (en) * | 2021-05-31 | 2021-08-31 | 广东电网有限责任公司 | Power switch management method, device, equipment and storage medium |
| CN113328522A (en) * | 2021-05-31 | 2021-08-31 | 广东电网有限责任公司 | Power switch monitoring method, device, equipment and storage medium |
| CN114116057A (en) * | 2021-11-19 | 2022-03-01 | 许昌许继软件技术有限公司 | Relay protection configuration switching method and device supporting human-computer interface setting |
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| CN104242222A (en) * | 2014-05-20 | 2014-12-24 | 阳江核电有限公司 | Method and system for processing relay protection setting value of nuclear power plant generator-transformer unit |
| CN104242222B (en) * | 2014-05-20 | 2017-03-29 | 阳江核电有限公司 | The processing method and system of nuclear power station transformer unit relay protection setting value |
| CN104052015A (en) * | 2014-06-20 | 2014-09-17 | 国家电网公司 | Relay protection device definite value region remote switching method |
| CN104052015B (en) * | 2014-06-20 | 2016-08-24 | 国家电网公司 | Relay protection device constant value district distant place changing method |
| CN106129972A (en) * | 2016-06-28 | 2016-11-16 | 南宁华供电力科技有限公司 | A kind of two-parameter electric relay protection technology |
| CN106532660A (en) * | 2016-10-31 | 2017-03-22 | 云南电网有限责任公司 | Master station system with relay setting change, remote system and control method |
| CN106451377A (en) * | 2016-11-02 | 2017-02-22 | 国家电网公司 | Constant value region remote switching security checking method of relay protection device |
| CN107392449A (en) * | 2017-07-05 | 2017-11-24 | 广西电网有限责任公司玉林供电局 | Relay protection constant value list generation method and device |
| CN108183460A (en) * | 2017-12-29 | 2018-06-19 | 国网天津市电力公司电力科学研究院 | A kind of power distribution network adaptive guard setting method based on correlation rule study |
| CN110323722A (en) * | 2019-06-12 | 2019-10-11 | 国网河北省电力有限公司 | A kind of cross-iteration method of relay protection information identification |
| CN110323723A (en) * | 2019-06-12 | 2019-10-11 | 国网河北省电力有限公司 | A kind of relay protection information recognition methods based on feature coding |
| CN110323722B (en) * | 2019-06-12 | 2021-07-27 | 国网河北省电力有限公司 | Cross iteration method for relay protection information identification |
| CN111130061A (en) * | 2019-12-05 | 2020-05-08 | 国网辽宁省电力有限公司锦州供电公司 | Remote switching control method for relay protection device constant value area |
| CN113328521A (en) * | 2021-05-31 | 2021-08-31 | 广东电网有限责任公司 | Edge processing method, device and equipment for power switch state and storage medium |
| CN113328523A (en) * | 2021-05-31 | 2021-08-31 | 广东电网有限责任公司 | Power switch management method, device, equipment and storage medium |
| CN113328522A (en) * | 2021-05-31 | 2021-08-31 | 广东电网有限责任公司 | Power switch monitoring method, device, equipment and storage medium |
| CN114116057A (en) * | 2021-11-19 | 2022-03-01 | 许昌许继软件技术有限公司 | Relay protection configuration switching method and device supporting human-computer interface setting |
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