CN103294869A - Protection definite value action simulation method based on cooperating of whole network - Google Patents
Protection definite value action simulation method based on cooperating of whole network Download PDFInfo
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- CN103294869A CN103294869A CN2013102284253A CN201310228425A CN103294869A CN 103294869 A CN103294869 A CN 103294869A CN 2013102284253 A CN2013102284253 A CN 2013102284253A CN 201310228425 A CN201310228425 A CN 201310228425A CN 103294869 A CN103294869 A CN 103294869A
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Abstract
The invention discloses a protection definite value action simulation method based on cooperation of the whole network. The protection definite value action simulation method based on cooperation of the whole network includes the following steps that firstly, simulation parameters are set; secondly, an operation manner is confirmed; thirdly, a stoppage type is confirmed; fourthly, a stoppage calculation result amount is obtained; fifthly, the stoppage calculation result amount of the fourth step is compared with a protection definite value obtained according to the first step; sixthly, whether protection action conditions are met or not is judged and if yes, the seventh step is actuated; otherwise, the fifth step is resumed according to the protection definite value obtained according to the first step; seventhly, a tripping switch is confirmed based on analysis of ordinary semantic words; eighthly, the tripping switch confirmed at the seventh step trips off for protection; ninthly, whether the tripping switch trips off or not is judged, if yes, the eleventh step is performed, otherwise, the tenth step is performed; tenthly, a relevant manner is automatically adjusted, stoppage calculation is resumed and the fourth step is performed; eleventhly, simulation is ended.
Description
Technical field
The present invention relates to the technical field that relay protection of power system is adjusted and calculated, relate in particular to a kind of action simulation method of the protection definite value that cooperates based on the whole network.
Background technology
Along with the increase day by day of electrical network scale, electric network composition is increasingly sophisticated at present, and its method of operation is variation thereupon also, thereby makes the complexity of relay protection setting evaluation work significantly improve.
As the important defence line that ensures the power system stability operation, relay protection must be satisfied selectivity, quick-action, sensitivity, these four basic demands of reliability (being called for short " four property ").The reliability of relay protection comprises malfunction and tripping two layers of meaning does not take place.Selectivity refers to protect in interval that may be minimum failure removal; non-fault department still can continue safe operation in the assurance system to greatest extent; the selectivity of relay protection comprises two layers of meaning: the one, only should excise fault by the protective device action that is contained on the fault element, and the 2nd, guarantee that the protective device of adjacent elements plays the back-up protection effect to fault element.Quick-action refers to fast as far as possible excision fault.Sensitivity refers to for breaking down in its protection domain or the reaction capacity of irregular operating state.Therefore, use computing machine definite value analogue technique to simulate electric power system fault, make relay protection satisfy four property, the action behavior of analyzing protection is very necessary.
Summary of the invention
For overcoming the defective of prior art, reduce various accidents that the definite value combination miss brings, give full play to the protective relaying device performance, guarantee the action simulation method of the protection definite value that cooperates based on the whole network of power network safety operation thereby the technical problem to be solved in the present invention has provided a kind of action behavior of relay protection in various complex environments of can simulating.
Technical scheme of the present invention is: the action simulation method of this protection definite value that cooperates based on the whole network may further comprise the steps:
(1) simulation parameter is set;
(2) determine the method for operation;
(3) determine fault type;
(4) obtain the calculation of fault result quantities;
(5) the calculation of fault result quantities of comparison step (4) and the protection definite value that draws according to step (1);
(6) judging whether to meet the protection operation condition, is execution in step (7) then, otherwise the protection definite value jump procedure (5) that draws according to step (1);
(7) resolve definite trip switch according to common semantic word;
(8) the definite trip switch of leapfrog rapid (7) is protected;
(9) judging whether tripping of trip switch, is jump procedure (11) then, otherwise execution in step (10);
(10) adjust relevant mode automatically, carry out calculation of fault again, execution in step (4);
(11) emulation finishes.
This method is by the structure of analysing of common semantic word; Intelligent Recognition is to respective switch, reduces various accidents that the definite value combination miss brings, gives full play to the protective relaying device performance, guarantees power network safety operation thereby can simulate the action behavior of relay protection in various complex environments.
Description of drawings
Fig. 1 is the process flow diagram according to the action simulation method of the protection definite value that cooperates based on the whole network of the present invention;
Fig. 2 is the detail flowchart of difference being protected the processing of type of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
The basic thought of this method is to adopt calculation of fault to obtain each protection place measured value under the fault, compares judgement with the system protection setting valve, for the situation of a plurality of switch motions, adopts by the order that starts the protection time-delay and protects action simulation.
As shown in Figure 1, the action simulation method of this protection definite value that cooperates based on the whole network may further comprise the steps:
(1) simulation parameter is set;
(2) determine the method for operation;
(3) determine fault type;
(4) obtain the calculation of fault result quantities;
(5) the calculation of fault result quantities of comparison step (4) and the protection definite value that draws according to step (1);
(6) judging whether to meet the protection operation condition, is execution in step (7) then, otherwise the protection definite value jump procedure (5) that draws according to step (1);
(7) resolve definite trip switch according to common semantic word;
(8) the definite trip switch of leapfrog rapid (7) is protected;
(9) judging whether tripping of trip switch, is jump procedure (11) then, otherwise execution in step (10);
(10) adjust relevant mode automatically, carry out calculation of fault again, execution in step (4);
(11) emulation finishes.
This method is by the structure of analysing of common semantic word; Intelligent Recognition is to respective switch, reduces various accidents that the definite value combination miss brings, gives full play to the protective relaying device performance, guarantees power network safety operation thereby can simulate the action behavior of relay protection in various complex environments.The simulation prerequisite of protection definite value is to possess comprehensive protection definite value information, and this programme is supported the structure of analysing of common semantic word, namely analyses the tripping operation effect switch that structure goes out protection.One every period time limit of route protection; corresponding action object is more definite comparatively speaking; and the transformer back-up protection; every segment protect definite value corresponding a plurality of time limits of possibility; the action object difference of each section time limit correspondence, this programme can wait these general semantic word descriptor Intelligent Recognition to respective switch according to " jumping female connection ", " the full jumping ", " jumping other sides ".These common semantic words are associated with the topology of network by expert system knowledge base.
Preferably, also comprise: the report of step (12) print emulation.
Preferably, as shown in Figure 2, this method also comprises the processing to difference protection type:
(a) three kinds of protections of definition type, A is for protecting tripping, and B has started for protection, and C does not start for protection;
(b) after the A action, consider successive relay trip, the moment after the A action calculates fault and calculates B and the action situation of C;
(c) for B, judge whether protection is returned, if then return; Otherwise judging whether B moves, is would trip then, otherwise keeps starting state;
(d) for C, judge whether protection starts, otherwise keep original state; If, then continue to judge whether action, be would trip then, otherwise keep starting state.
The whole network that so just takes into full account protection cooperates, and the whole network cooperates and refers to the mutual relationship in the definite value action simulation between all types of protections.The startup of above method supportive protection, return and record the electric parameter of each significant instant.By this definite value analogy method can the simulated range protection, the switch motion overall process of current/voltage protection, zero-sequence current protection and transformer back-up protection, check the accuracy of protection definite value, for the safe and stable operation of electrical network provides safeguard.
The above; it only is preferred embodiment of the present invention; be not that the present invention is done any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment all still belong to the protection domain of technical solution of the present invention.
Claims (3)
1. the action simulation method based on the protection definite value of the whole network cooperation is characterized in that, may further comprise the steps:
(1) simulation parameter is set;
(2) determine the method for operation;
(3) determine fault type;
(4) obtain the calculation of fault result quantities;
(5) the calculation of fault result quantities of comparison step (4) and the protection definite value that draws according to step (1);
(6) judging whether to meet the protection operation condition, is execution in step (7) then, otherwise the protection definite value jump procedure (5) that draws according to step (1);
(7) resolve definite trip switch according to common semantic word;
(8) the definite trip switch of leapfrog rapid (7) is protected;
(9) judging whether tripping of trip switch, is jump procedure (11) then, otherwise execution in step (10);
(10) adjust relevant mode automatically, carry out calculation of fault again, execution in step (4);
(11) emulation finishes.
2. the action simulation method of the protection definite value that cooperates based on the whole network according to claim 1 is characterized in that, also comprises: the report of step (12) print emulation.
3. the action simulation method of the protection definite value that cooperates based on the whole network according to claim 1 and 2 is characterized in that, also comprises the processing to difference protection type:
(a) three kinds of protections of definition type, A is for protecting tripping, and B has started for protection, and C does not start for protection;
(b) after the A action, consider successive relay trip, the moment after the A action calculates fault and calculates B and the action situation of C;
(c) for B, judge whether protection is returned, if then return; Otherwise judging whether B moves, is would trip then, otherwise keeps starting state;
(d) for C, judge whether protection starts, otherwise keep original state; If, then continue to judge whether action, be would trip then, otherwise keep starting state.
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| CN2013102284253A CN103294869A (en) | 2013-06-08 | 2013-06-08 | Protection definite value action simulation method based on cooperating of whole network |
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| CN2013102284253A CN103294869A (en) | 2013-06-08 | 2013-06-08 | Protection definite value action simulation method based on cooperating of whole network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337246A (en) * | 2015-11-13 | 2016-02-17 | 国网冀北电力有限公司 | Data-dimension-based modeling method of setting calculating of relay protection setting value |
| CN110399671A (en) * | 2019-07-19 | 2019-11-01 | 国网河北省电力有限公司邢台供电分公司 | Synchronizing calculation method, device and the terminal of the protective relaying device of power grid |
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| CN102290800A (en) * | 2011-08-12 | 2011-12-21 | 华东电网有限公司 | Method for checking relay protection setting |
| CN102496917A (en) * | 2011-12-05 | 2012-06-13 | 华东电网有限公司 | Method for checking and setting relay protection |
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2013
- 2013-06-08 CN CN2013102284253A patent/CN103294869A/en active Pending
Patent Citations (2)
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| CN102290800A (en) * | 2011-08-12 | 2011-12-21 | 华东电网有限公司 | Method for checking relay protection setting |
| CN102496917A (en) * | 2011-12-05 | 2012-06-13 | 华东电网有限公司 | Method for checking and setting relay protection |
Non-Patent Citations (2)
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| 刘启蒙: "电网继电保护整定计算软件中故障计算的研究", 《中国优秀硕士学位论文全文数据库（电子期刊）》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337246A (en) * | 2015-11-13 | 2016-02-17 | 国网冀北电力有限公司 | Data-dimension-based modeling method of setting calculating of relay protection setting value |
| CN110399671A (en) * | 2019-07-19 | 2019-11-01 | 国网河北省电力有限公司邢台供电分公司 | Synchronizing calculation method, device and the terminal of the protective relaying device of power grid |
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Application publication date: 20130911 |