CN101431239A - Method for implementing credible locking of major-minor carrying apparatus of stabilization control device - Google Patents
Method for implementing credible locking of major-minor carrying apparatus of stabilization control device Download PDFInfo
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- CN101431239A CN101431239A CNA2008101552564A CN200810155256A CN101431239A CN 101431239 A CN101431239 A CN 101431239A CN A2008101552564 A CNA2008101552564 A CN A2008101552564A CN 200810155256 A CN200810155256 A CN 200810155256A CN 101431239 A CN101431239 A CN 101431239A
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Abstract
The invention discloses a method for stably controlling the reliable locking of a main transmission device and an auxiliary transmission device. If the main transmission device is judged to need tripping, whether the mark showing that the auxiliary transmission device can actuate is received or not is no longer judged, that is, the mark showing that the auxiliary transmission device can actuate is not sent to the auxiliary transmission device, thereby ensuring that only the main transmission device actuates, the auxiliary transmission device can be reliably locked, and other logic main and auxiliary transmission devices are similar to the main transmission device and the auxiliary transmission device under the condition that the main transmission device needs tripping is prior to receiving the mark showing that the auxiliary transmission device can actuate is judged. By adopting the method, since a matching relation that the main transmission device and the auxiliary transmission device can respond to each other is established, the exit of only one out of the main transmission device and the auxiliary transmission device actuates to ensure the reliable locking of the main transmission device and the auxiliary transmission device, and further avoid the time delay of the original auxiliary transmission device, thereby greatly improving the transient stability of the system.
Description
Technical field
The invention belongs to electrical technology field, the present invention relates to a kind of method that realizes credible locking of major-minor carrying apparatus of stabilization control device more precisely.
Background technology
The general system as shown in Figure 1 that adopts connects between the major-minor shipping unit of stabilization control device at present.The outlet of major-minor shipping unit excision same object connects together, and a certain unit of any covering device action excision all can be this unit excision.
Main shipping unit is the same on function with auxilliary shipping unit, only allows main fortune or the wherein table apparatus action of auxilliary fortune during device action, and its main distinction is that auxilliary shipping unit can only have fault and could move under in the akinesia at main shipping unit.In same inaction interval, main shipping unit is action earlier, export simultaneously a secondary contact (as auxilliary shipping unit open into) come locking assist shipping unit (implication of this paper " locking " is the outlet of locking device, is not that device is just out of service after the locking, down with); Auxilliary shipping unit at a delay time (generally being set at about 35ms) of setting in advance if in detect the block signal of main shipping unit, assist the outlet of shipping unit with locking self; If auxilliary shipping unit delay time to after still do not detect the block signal of main shipping unit, then auxilliary shipping unit action outlet is exported a secondary contact simultaneously and is removed locking master shipping unit.Latching logic is shown in accompanying drawing one between the present major-minor fortune of stability control device.But this traditional major-minor fortune latching logic still might make major-minor fortune locking failure.
The object of stabilization control device excision can be because reasons such as sampling error cause the object of two covering devices excision have any different, if major-minor fortune locking failure, two covering devices may all can move and cause the cutter group.For example, at same inaction interval internal fault strategy is by 2 machines of unit capacity excision, main shipping unit is excision #1 and #2 unit near the optimum combination of principle by the cutter capacity, and auxilliary shipping unit is excision #1 and #3 unit near the optimum combination of principle according to the cutter capacity.Because there are the sampled measurements error in two covering devices, under the very approaching situation of three unit outputs, be easy to satisfy.If major-minor fortune locking failure, two covering devices all can be moved outlet, cause cutting a unit thus more.This will may bring unpredictable consequence to power system stability in addition except meeting causes unnecessary economic loss.
In addition, to overload and high all faults,, cause the auxilliary fortune of main fortune locking failure because the sampling equal error between major-minor fortune two covering devices makes probably that also auxilliary fortune satisfies operation condition prior to main fortune.
For the overload problem, if the electric current of circuit or main transformer waves near the operating current definite value for a long time, add the sampling error of device, auxilliary fortune may satisfy overload condition easilier, and promptly auxilliary shipping unit had satisfied operation condition prior to main fortune before the block action signal of not receiving main fortune.Although main fortune also satisfied operation condition and also moved outlet this moment.But main fortune block signal is delivered to auxilliary shipping unit and is also needed time about t ms by its perception.If auxilliary fortune delay time is T, if the time that auxilliary fortune satisfies overload condition in advance interval (T-t, T+t) in, main shipping unit and auxilliary shipping unit all can move.If the time difference of main fortune and the action of auxilliary shipping unit is t1, the time that the complete tripping of outlet coil need continue is t2, if t1〉t2, then earlier the device of action must really export action, if t1〉t, then the block signal locking of first movement device not covering device in addition, the device of back action also can really export action, so just might cause misoperation, if t1＜t, then the device of back action will be by locking; If t1＜t2, then duplicating device causes tripping with mutual locking.Though the probability that this accident takes place is very low, electric network fault often occurs on the small probability event and causes heavy losses.
When judging the high all fault cutter of electrical network, frequency is just upgraded once every 20ms, adds sampling error similarly, and also probably auxilliary fortune satisfies high all conditions earlier, satisfies high all conditions after the main fortune and causes mutual locking.Power plant is when receiving distant place order cutter in addition, and the time order and function that may cause major-minor shipping unit to receive the cutter order because of reasons such as communication ports has than big difference.If the time that auxilliary fortune receives orders in advance drop on the interval (T-t, T+t) in, also may cause major-minor fortune locking failure.
Summary of the invention
Goal of the invention:
Deficiency at prior art may cause major-minor fortune locking to be failed the invention discloses a kind of method that realizes credible locking of major-minor carrying apparatus of stabilization control device.
Technical scheme:
To achieve these goals, the present invention takes following technical scheme to realize:
One, main shipping unit is realized the step of correct cutter and the auxilliary shipping unit of reliable locking:
Need cutter prior to receiving auxilliary fortune and can move sign if (1a) main shipping unit is judged, turn to (5a); Otherwise turn to (2a);
If (2a) main fortune receives that auxilliary fortune can move sign, promptly main transport also not judge need cutter, turn to (3a); Otherwise turn to (5a);
(3a) main fortune sends to auxilliary fortune and has received that auxilliary fortune can move sign, the main fortune of while locking;
(4a) main fortune unlocking picks up counting, and the purpose of setting up of unlocking time is to remove the locking of main fortune after going wrong rapidly for the outlet that prevents auxilliary shipping unit, and main fortune just can export action at once; Turn to (5a);
(5a) whether judgment means needs cutter, and cutter turns to (6a) if desired, otherwise turns to (13a)
(6a) whether locking of judgment means, turns to (7a) if device does not have locking, otherwise turns to (11a);
(7a) judge that whether same start-up period master shipping unit moved, and, turned to (8a) if do not move, otherwise turned to (10a);
(8a) main fortune sends to auxilliary fortune and can move sign;
(9a) main fortune sends to auxilliary fortune and can move the sign back and just wait for whether auxilliary fortune send to main fortune and received that main fortune can move sign.Turn to (10a) if receive this sign, otherwise turn to (13a);
(10a) according to the action of strategy outlet cutter, and put the main action of the cutter outlet sign of transporting, turn to (13a)
(11a) judged whether to assist motion and opened,, turned to (12a) if do not have, otherwise turn to (13) into signal;
(12a) judge whether the master arrives the fortune unlocking time, if the unlocking time arrives, unlocking turns to (10a) at once.Otherwise turn to (13a);
(13a) this EOI is waited for next time and being interrupted.
Two, auxilliary shipping unit is realized the step of correct cutter and the auxilliary shipping unit of reliable locking:
If (1b) auxilliary shipping unit receives that main fortune can move sign, turn to (2b); Otherwise turn to (4b);
(2b) auxilliary fortune sends to main fortune and has received that main fortune can move sign, and locking simultaneously is auxilliary transports;
(3b) auxilliary fortune unlocking picks up counting, and the purpose of setting up of unlocking time is to remove the locking of auxilliary fortune after going wrong rapidly for the outlet that prevents main shipping unit, and auxilliary fortune just can export action at once; Turn to (4b);
(4b) whether judgment means needs cutter, and cutter turns to (5b) if desired, otherwise turns to (12b);
(5b) whether locking of judgment means, turns to (6b) if device does not have locking, otherwise turns to (11b);
(6b) judge that whether the auxilliary shipping unit of same start-up period moved, and, turned to (7b) if do not move, otherwise turned to (8b);
(7b) auxilliary fortune sends to main fortune and can move sign;
(8b) auxilliary fortune sends to main fortune and can move the sign back and just wait for whether main fortune send to auxilliary fortune and received that main fortune can move sign; Turn to (9b) if receive this sign, otherwise turn to (12b);
(9b) according to the action of strategy outlet cutter, and put the auxilliary action of the cutter outlet sign of transporting, turn to (12b)
(10b) judged whether that main motion opens into signal,, turned to (11b) if do not have, otherwise turn to (12b);
(11b) judge whether arrive, if the unlocking time arrives, unlocking turns to (10b) at once if assisting the fortune unlocking time; Otherwise turn to (12b);
(12b) this EOI is waited for next time and being interrupted.
Whether in the content of the present invention, increased the optical-fibre channel between the major-minor shipping unit on the hardware, being used for interactive device has the sign and other covering device that can move whether to receive the message authentication that this device can move.
Beneficial effect:
Adopt the method disclosed in the present, move because had the matching relationship of replying mutually, major-minor shipping unit only to have table apparatus outlet between the major-minor shipping unit.And cancelled original auxilliary fortune time-delay, can improve the transient stability of system greatly.
Description of drawings
Fig. 1 is a major-minor shipping unit system connection diagram
Fig. 2 is present major-minor shipping unit locking flow chart
Fig. 3 is master's shipping unit locking flow chart of the present invention
Fig. 4 is the auxilliary shipping unit locking flow chart of the present invention
Embodiment
Below in conjunction with accompanying drawing and with the power plant's stabilization control device of making a pilgrimage to a temple on a famous mountain greatly is that to describe major-minor shipping unit in detail be how to realize reliable locking to example.
The power plant's stabilization control device of making a pilgrimage to a temple on a famous mountain is greatly judged big precious I line and the tripping operation of big precious II line single line or double loop trips simultaneously or when overhauling another rebound lock one time, device is according to the section power of the preceding double loop of tripping operation, again according to operational mode, inquiry control strategy table excises the unit of the power plant of making a pilgrimage to a temple on a famous mountain greatly.In order to prevent that the cutter group power plant of making a pilgrimage to a temple on a famous mountain greatly from adopting major-minor operational mode, switched the major-minor of two covering devices by handle.
Accompanying drawing 3, accompanying drawing 4 at first are described in detail in detail, and according to the various real-time statuss of the major-minor shipping unit of power plant of making a pilgrimage to a temple on a famous mountain greatly, analyzing major-minor shipping unit is how to realize reliable locking then.
The implication of several terms in the major-minor fortune software logic flow chart is described earlier.
1. device (main fortune or auxilliary fortune) can move sign: indication device has been judged needs cutter, but really cutter need obtain the communication acknowledgement of other covering device.
2. main fortune sends to auxilliary fortune can move sign: need cutter prior to receiving that assisting fortune can move sign if the main fortune of expression is judged, main shipping unit just no longer judges whether to receive that auxilliary fortune can move sign, system just can only allow main motion to do, the auxilliary fortune of locking simultaneously.
3. main fortune sends to auxilliary fortune and receives that auxilliary fortune can move sign: the main fortune of expression has been received the sign that auxilliary fortune can be moved, and main simultaneously National Games locking allows auxilliary motion work.
4. auxilliary fortune sends to main fortune and receives that main fortune can move sign: the auxilliary fortune of expression has been received the sign that main fortune can be moved, and auxilliary simultaneously National Games locking allows the main motion work.
5. main fortune is received that auxilliary fortune is informed and received that main fortune can move sign: before the expression main motion is done, receive that auxilliary shipping unit confirms to be failure to actuate message, this moment, main fortune just can export action.
6. auxilliary fortune is received that main fortune is informed and received that auxilliary fortune can move sign: before the auxilliary motion of expression is done, receive that main shipping unit confirms to be failure to actuate message, assist fortune and just can export action this moment
7. unlocking time: allow the action outlet if certain covering device goes out this covering device by major-minor fortune logic determines, this moment in addition covering device by locking.If but the hardware outlet loop of this covering device goes wrong, cause the unit can not be really cut, this moment is by the device of locking unlocking rapidly, the unit that quick excision should be excised.The unlocking time should get final product about long 5ms than the operate time of startup and action two-step relay.
Can see that from accompanying drawing 3 and accompanying drawing 4 difference of main shipping unit and auxilliary shipping unit logic is: if main shipping unit judged need cutter after, just no longer judge whether to receive that auxilliary fortune can move sign, just can not send yet and receive that assisting fortune can move sign to auxilliary shipping unit, guarantee like this main fortune judge need cutter prior to the situation of receiving auxilliary fortune and can move sign under, have only main motion to do, the locking reliably of auxilliary fortune, the major-minor fortune of other logic is similar.
The motion analysis of major-minor shipping unit typical case:
The time that exchanges a secondary data by the 2M optical fiber communication between the major-minor shipping unit is a break period (0.833ms), the following basis major-minor shipping unit of power plant of making a pilgrimage to a temple on a famous mountain is greatly judged the time order and function of line fault, the action earlier of promptly main fortune, the back action of auxilliary fortune and the action earlier of auxilliary fortune, the back action of main fortune and major-minor fortune are moved three kinds of situations simultaneously, illustrate the present invention and be reliable cutter logic how to carry out accompanying drawing 3 and accompanying drawing 4.
1 main shipping unit was judged constantly in 0 second to be needed to carry out when cutting 2 machine measures, and auxilliary shipping unit time-delay 2 break periods (1.677ms) is judged needs to carry out the 2 machine measures of cutting.Because auxilliary fortune is judged when needing executive measure, received the main sign that can move that sends over of transporting, therefore auxilliary fortune is by locking reliably.Realize the step of correct cutter and the auxilliary shipping unit of reliable locking according to main shipping unit, can move before the sign in the main fortune of receiving of receiving not that auxilliary fortune sends, main shipping unit each to interrupt the step carried out as follows: (1a) → (5a) → (6a) → (7a) → (8a) → (9a) → (13a)
When the main fortune of receiving that main shipping unit receives that auxilliary fortune sends can be moved behind the sign, main shipping unit just can export the cutter action according to strategy, and put the master and transport the action of cutter outlet sign, i.e. (1a) → (5a) → (6a) → (7a) → (8a) → (9a) → (13a)
Auxilliary shipping unit needs to carry out when cutting 2 machine measures judging, and has received that main fortune that main fortune sends over can move sign, so the locking reliably of auxilliary fortune quilt.Its execution in step is as follows:
(1b)→(2b)→(3b)→(4b)→(5b)→(11b)→(12b)
When main when transporting a mouthful signal and going wrong, auxilliary fortune does not receive the opening into signal of main fortune behind the 5ms after the sign receiving that main fortune can be moved, so auxilliary fortune unlocking is carried out cutter reliably and moved.In this case, the execution in step of auxilliary fortune is:
(1b)→(2b)→(3b)→(4b)→(5b)→(11b)→(10b)→(12b)
2 auxilliary shipping units were judged constantly in 0 second to be needed to carry out when cutting 2 machine measures, and main shipping unit delays time to judge half break period (being 0.433ms) needs to carry out the 2 machine measures of cutting.A break period is under the situation of 0.833ms, judges when needing cutter in main fortune, does not receive that also auxilliary fortune that auxilliary fortune sends over can move sign, is equivalent to major-minor fortune on the logic function and judges simultaneously and break down.At this moment, main shipping unit is because judge the fault cutter earlier, just no longer judges whether to receive that auxilliary fortune can move sign, and main fortune just can not send to auxilliary fortune and receive that auxilliary fortune can move sign, and auxilliary fortune can not receive this and just indicates and can not move.Main fortune each to interrupt step and first kind of situation of carrying out similar, main fortune can be moved before the sign is receiving of receiving not that auxilliary fortune sends:
(1a)→(5a)→(6a)→(7a)→(8a)→(9a)→(13a)
When the main fortune of receiving that main shipping unit receives that auxilliary fortune sends can be moved behind the sign
(1a)→(5a)→(6a)→(7a)→(8a)→(9a)→(10a)→(13a)
Auxilliary shipping unit is owing to judge cutter earlier, and its step of interrupting carrying out is
(1b) → (4b) → (5b) → (6b) → (7b) → (8b) → (12b) auxilliary fortune has received that auxilliary fortune can move sign again owing to can not receive main transporting back, therefore auxilliaryly transports akinesia.
3 auxilliary shipping units were judged constantly in 0 second to be needed to carry out when cutting 2 machine measures, and main shipping unit time-delay 24 break periods (being 10ms) is judged needs to carry out the 2 machine measures of cutting.A break period is under the situation of 0.833ms, judges when needing cutter in main fortune, receives that already auxilliary fortune that auxilliary fortune sends over can move sign.So main fortune has replied to auxilliary fortune before needing cutter and has received that auxilliary fortune can move sign judging, the main fortune of locking simultaneously, auxilliary like this shipping unit is just at first carried out cutter outlet action, and main fortune judges that the step of execution is before the fault cutter:
(1a)→(2a)→(3a)→(4a)→(5a)→(13a)
Auxilliary fortune is judged the step of carrying out behind the fault cutter:
(1b)→(4b)→(5b)→(6b)→(7b)→(8b)→(9b)→(12b)
Claims (1)
1, a kind of method that realizes credible locking of major-minor carrying apparatus of stabilization control device is characterized in that, may further comprise the steps:
Wherein, main shipping unit realizes that the step of reliable locking is:
Need cutter prior to receiving auxilliary fortune and can move sign if (1a) main shipping unit is judged, turn to (5a); Otherwise turn to (2a);
If (2a) main fortune receives that auxilliary fortune can move sign, promptly main transport also not judge need cutter, turn to (3a); Otherwise turn to (5a);
(3a) main fortune sends to auxilliary fortune and has received that auxilliary fortune can move sign, the main fortune of while locking;
(4a) main fortune unlocking picks up counting, and the purpose of setting up of unlocking time is to remove the locking of main fortune after going wrong rapidly for the outlet that prevents auxilliary shipping unit, and main fortune just can export action at once; Turn to (5a);
(5a) whether judgment means needs cutter, and cutter turns to (6a) if desired, otherwise turns to (13a)
(6a) whether locking of judgment means, turns to (7a) if device does not have locking, otherwise turns to (11a);
(7a) judge that whether same start-up period master shipping unit moved, and, turned to (8a) if do not move, otherwise turned to (10a);
(8a) main fortune sends to auxilliary fortune and can move sign;
(9a) main fortune sends to auxilliary fortune and can move the sign back and just wait for whether auxilliary fortune send to main fortune and received that main fortune can move sign.Turn to (10a) if receive this sign, otherwise turn to (13a);
(10a) according to the action of strategy outlet cutter, and put the main action of the cutter outlet sign of transporting, turn to (13a);
(11a) judged whether to assist motion and opened,, turned to (12a) if do not have, otherwise turn to (13a) into signal;
(12a) judge whether the master arrives the fortune unlocking time, if the unlocking time arrives, unlocking turns to (10a) at once; Otherwise turn to (13a);
(13a) this EOI is waited for next time and being interrupted;
Wherein, auxilliary shipping unit realizes that the step of reliable locking is:
If (1b) auxilliary shipping unit receives that main fortune can move sign, turn to (2b); Otherwise turn to (4b);
(2b) auxilliary fortune sends to main fortune and has received that main fortune can move sign, and locking simultaneously is auxilliary transports;
(3b) auxilliary fortune unlocking picks up counting, and the purpose of setting up of unlocking time is to remove the locking of auxilliary fortune after going wrong rapidly for the outlet that prevents main shipping unit, and auxilliary fortune just can export action at once; Turn to (4b);
(4b) whether judgment means needs cutter, and cutter turns to (5b) if desired, otherwise turns to (12b);
(5b) whether locking of judgment means, turns to (6b) if device does not have locking, otherwise turns to (11b);
(6b) judge that whether the auxilliary shipping unit of same start-up period moved, and, turned to (7b) if do not move, otherwise turned to (8b);
(7b) auxilliary fortune sends to main fortune and can move sign;
(8b) auxilliary fortune sends to main fortune and can move the sign back and just wait for whether main fortune send to auxilliary fortune and received that main fortune can move sign.Turn to (9b) if receive this sign, otherwise turn to (12b);
(9b) according to the action of strategy outlet cutter, and put the auxilliary action of the cutter outlet sign of transporting, turn to (12b);
(10b) judged whether that main motion opens into signal,, turned to (11b) if do not have, otherwise turn to (12b);
(11b) judge whether arrive, if the unlocking time arrives, unlocking turns to (10b) at once if assisting the fortune unlocking time; Otherwise turn to (12b);
(12b) this EOI is waited for next time and being interrupted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101552564A CN101431239B (en) | 2008-10-29 | 2008-10-29 | Method for implementing credible locking of major-minor carrying apparatus of stabilization control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101552564A CN101431239B (en) | 2008-10-29 | 2008-10-29 | Method for implementing credible locking of major-minor carrying apparatus of stabilization control device |
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| Publication Number | Publication Date |
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| CN101431239A true CN101431239A (en) | 2009-05-13 |
| CN101431239B CN101431239B (en) | 2010-09-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610593A (en) * | 2016-12-27 | 2017-05-03 | 中国电力科学研究院 | Detection method and system based on RTDS intelligent safety control system |
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- 2008-10-29 CN CN2008101552564A patent/CN101431239B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106610593A (en) * | 2016-12-27 | 2017-05-03 | 中国电力科学研究院 | Detection method and system based on RTDS intelligent safety control system |
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| CN101431239B (en) | 2010-09-15 |
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Effective date of registration: 20140106 Address after: 210061 D10, Nanjing high tech Industrial Development Zone, Jiangsu, China Patentee after: NARI Technology Development Co., Ltd. Address before: Nan Shui Road Gulou District of Nanjing city of Jiangsu Province, No. 8 210003 Patentee before: Nanjing Nari Co., Ltd. |