CN108631360A - A kind of list outlet hydroenergy storage station multimachine removal of load synchronous trigger method and system - Google Patents
A kind of list outlet hydroenergy storage station multimachine removal of load synchronous trigger method and system Download PDFInfo
- Publication number
- CN108631360A CN108631360A CN201810316254.2A CN201810316254A CN108631360A CN 108631360 A CN108631360 A CN 108631360A CN 201810316254 A CN201810316254 A CN 201810316254A CN 108631360 A CN108631360 A CN 108631360A
- Authority
- CN
- China
- Prior art keywords
- outlet
- machine
- unit
- signal
- tripping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/388—Islanding, i.e. disconnection of local power supply from the network
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a kind of single outlet hydroenergy storage station multimachine removal of load synchronous trigger method and systems, in current unit operation, all outlet switch location status and the machine rotary speed information on unit transmission line circuit are obtained in real time, if any outlet switch is in open position, and whether the machine rotation speed change is abnormal, then judge the machine outlet abnormal interrupt, further judge current unit in grid-connected state, if it is, current unit executes load rejection tripping；Meanwhile whether the outlet switch for judging to be currently located in open position is the shared outlet switch of more units, if it is, generating the other unit signals of shunt tripping, the shared other units of the outlet switch are sent to by communication mode；After other units receive the other unit signals of above-mentioned shunt tripping, if its own unit is in grid-connected state, load rejection tripping is executed.The present invention is not required to increase any additional hardware, it can be achieved that when outlet line anomalies are interrupted, and corresponding unit is rapid simultaneously to trip.
Description
Technical field
The present invention relates to pump-storage generators to control research field, more particularly to a kind of single outlet hydroenergy storage station multimachine
Removal of load synchronous trigger method and system.
Background technology
Traditional hydroenergy storage station can generally build at least two outlet circuits, but also have part power station due to power grid
The reasons such as feature and Installed capital cost, full factory only have an outlet circuit and are connected with power grid.In this case, there are outlets
Line tripping leads to the probability of more load rejection trippings of being incorporated into the power networks.
If pump-storage generator regulation assurance calculation shows that more units are being incorporated into the power networks, when an only outlet line
When the abnormal interrupt of road, if the asynchronous delay removal of load tripping of each unit, draft tube will generate negative in certain special cases
Pressure, it is possible to create water column separation phenomenon seriously jeopardizes water channel safety.For avoid there is a situation where it is this it is severe occur, when singly going out
It when line abnormal interrupt, needs to cut off running all units as early as possible in 1s or so, avoids unit delay removal of load successively.Therefore
It must research and design a set of multimachine removal of load safety control strategy, it is ensured that the quick-action of multimachine removal of load simultaneously, synchronism and can
By property.
Realize that the function that all units trip simultaneously, rapidly when outlet line anomalies are interrupted, traditional mode are to increase
Stable Union Switch Device is judged the variation of electrical quantity in circuit by the device, by all units of hard wire shunt tripping, as shown in Figure 1.
But there are following deficiencies for this mode：
(1) additional increase hardware device and circuit are needed, cost of investment is increased；
(2) it needs periodic maintenance to examine hardware device, increases maintenance cost；
(3) plant failure malfunction may cause more units with mistiming loss-of-load accident, increase unit and power grid security wind
Danger.
For this purpose, the above several points deficiency can be solved and realize all units when outlet line anomalies are interrupted by finding one kind
Quickly while the single outlet hydroenergy storage station multimachine removal of load synchronous trigger method and system of trip avoidance function, there is important grind
Study carefully meaning and practical value.
Invention content
It is more to provide a kind of single outlet hydroenergy storage station for the shortcomings that it is an object of the invention to overcome the prior art and deficiency
Machine removal of load synchronous trigger method and system.The present invention is not in the case where increasing any additional hardware equipment, using " each machine
It is same that the mode of intertrip between the autonomous judgement of group, unit " realizes all units that are incorporated into the power networks when outlet line anomalies are interrupted
When the function that trips rapidly.
In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is as follows：A kind of list outlet hydroenergy storage station
Multimachine removal of load synchronous trigger method, including step：
When current set grid-connection is run, all outlet switch location status and sheet on unit transmission line circuit are obtained in real time
Machine rotary speed information, if any outlet switch is in open position on unit transmission line circuit, and the machine rotation speed change is abnormal, then judges this
Whether machine outlet abnormal interrupt further judges current unit in grid-connected state, if it is, current unit executes unit
Removal of load is tripped；Meanwhile whether the outlet switch for judging to be currently located in open position is the shared outlet switch of more units, such as
Fruit is then to generate the other unit signals of shunt tripping, and the other unit signals of the shunt tripping are sent to the outlet switch by communication mode
Shared other units；
After other units receive the other unit signals of above-mentioned shunt tripping, judge its own unit whether in the shape that is incorporated into the power networks
State is if it is immediately performed load rejection tripping.
Preferably, judge whether abnormal step is the machine rotation speed change：Two-way fluted disc speed measuring signal is received, if two-way tooth
Any rotating speed higher than high setting value (such as 101% rated speed) or is less than (such as 99% specified turn of low setting value in disk tachometer signal
Speed), then judge that the machine rotation speed change is abnormal.
A kind of list outlet hydroenergy storage station multimachine removal of load synchronous triggering system is equipped with unit on each unit and gets rid of
Load trigger module, the load rejection trigger module include：
Outlet switch location status judgment module, for receiving and judging unit outlet switch location status；
The machine rotation speed change judgment module, the situation of change for judging generating unit speed；
The machine outlet abnormal interrupt judgment module judges signal and unit outlet switch position for receiving unit rotation speed change
Status signal is set, judges whether outlet is abnormal interruption situation when set grid-connection operation；
The machine grid-connected state judgment module, for judging whether unit is in grid-connected state；
Shunt tripping the machine judgment module is interrupted in outlet, for receiving in the machine grid-connected state signal and the machine outlet exception
Disconnected status signal, sends out unit because of outlet abnormal interrupt removal of load trip signal；
The other unit signals of the machine shunt tripping generate sending module, for receiving unit because outlet abnormal interrupt removal of load is tripped
Signal and unit outlet switch position state signal, according to unit outlet switch position state signal judge need to it is other which
Unit sends shunt tripping signal, and shunt tripping signal is sent out to related unit by communication mode；
Other units are because tripping judgment module is interrupted in outlet, for receiving and judging that other units send over because of outlet
Abnormal interrupt shunt tripping local signal；
Other unit shunt tripping the machine judgment modules, for receiving the machine grid-connected state signal and other units because of outlet
Abnormal interrupt shunt tripping local signal sends out unit because of outlet abnormal interrupt removal of load trip signal；
The machine removal of load tripping execution module interrupts shunt tripping the machine judgment module and other units connection for receiving from outlet
The unit that jump the machine judgment module sends over executes load rejection tripping stream because of outlet abnormal interrupt removal of load trip signal
Journey.
Preferably, outlet switch location status judgment module identification tactic is：Receive all outlets on unit transmission line circuit
" conjunction " and " dividing " position state signal of switch, when outlet switch " conjunction " position state signal is 0 and " dividing " position state signal
When being 1, obtain and send out " outlet switch is in open position " judging signal.
Preferably, the machine rotation speed change judgment module receives two-way fluted disc speed measuring signal, and identification tactic is：When two-way fluted disc
Any rotating speed higher than high setting value (such as 101% rated speed) or is less than low setting value (such as 99% rated speed) in tachometer signal
When, it obtains and sends out " the machine rotation speed change abnormal " judging signal.
Preferably, the machine outlet abnormal interrupt judgment module identification tactic is：When either switch exists on unit transmission line circuit
When open position and the machine rotation speed change exception, obtain and send out " the machine outlet abnormal interrupt " judging signal.
Preferably, the machine grid-connected state judgment module identification tactic is：When unit GCB and commutation disconnecting link are closing a floodgate
When position, obtain and send out " the machine is in grid-connected state " judging signal.
Preferably, outlet interruption shunt tripping the machine judgment module identification tactic is：When the machine is in grid-connected state and the machine
When outlet abnormal interrupt, obtains and send out " the machine is interrupted because of outlet and tripped " signal.
Preferably, the other unit signals generation sending module identification tactics of the machine shunt tripping are：When the outlet of abnormal interrupt is opened
When pass is the switch that more units share, after the machine obtains " the machine is interrupted because of outlet and tripped " signal, " the machine shunt tripping is other for generation
Unit " signal is sent to the shared other units of outlet switch.
Preferably, other units because outlet interrupt tripping judgment module identification tactic be：When receive any other units because
After shunt tripping local signal is interrupted in outlet, obtain and send out " other units interrupt shunt tripping the machine because of outlet " judging signal.
Preferably, other unit shunt tripping the machine judgment module identification tactics are：When the machine in grid-connected state and receives
When " other units interrupt shunt tripping the machine because of outlet " judges signal, obtains and send out " other unit shunt tripping the machine " trip signal.
Preferably, the machine removal of load tripping execution module identification tactic is：Believe when receiving " the machine is interrupted because of outlet and tripped "
Number or when " other unit shunt tripping the machine " trip signal, obtain and send out " the machine trips because of outlet abnormal interrupt " signal, immediately
Triggering executes load rejection tripping flow, turns off GCB, stops excitation, guide vane closing, closes the operations such as main inlet valve.
Compared with prior art, the present invention having the following advantages that and advantageous effect：
1, the present invention realizes more units by the way of " each unit independently judge, intertrip between unit " and exists
Quick-action, synchronism and the reliability that removal of load is tripped in the case of outlet abnormal interrupt, and realized completely by software programming, it is not necessarily to
Increase any additional hardware equipment.
2, compared to the traditional approach for increasing a set of stable Union Switch Device while more units of shunt tripping, the present invention is each due to taking
Platform unit independently judges that the mode of tripping, the case where avoiding the more units of false tripping in stable Union Switch Device failure occur.
Description of the drawings
Fig. 1 is stable Union Switch Device shunt tripping unit schematic diagram in the prior art.
Fig. 2 is single outlet hydroenergy storage station multimachine removal of load synchronous triggering system schematic diagram in the present embodiment.
Fig. 3 is hydroenergy storage station unit transmission line circuit schematic diagram in the present embodiment.
Fig. 4 is condition judgment module identification tactic schematic diagram in the position of the switch in the present embodiment.
Fig. 5 is the machine rotation speed change judgment module identification tactic schematic diagram in the present embodiment.
Fig. 6 (a), (b) are the machine outlet abnormal interrupt judgment modules for corresponding to Tu3Liang Ge outlets branch in the present embodiment
Identification tactic schematic diagram.
Fig. 7 is the machine grid-connected state judgment module identification tactic schematic diagram in the present embodiment.
Fig. 8 is that shunt tripping the machine judgment module identification tactic schematic diagram is interrupted in outlet in the present embodiment.
Fig. 9 is that the other unit signals of the machine shunt tripping generate sending module identification tactic schematic diagram in the present embodiment.
Figure 10 be in the present embodiment other units because outlet interrupt tripping judgment module identification tactic schematic diagram.
Figure 11 is other unit shunt tripping the machine judgment module identification tactic schematic diagrames in the present embodiment.
Figure 12 is the machine removal of load tripping execution module identification tactic schematic diagram in the present embodiment.
Figure 13 is the flow diagram of the present embodiment method.
Specific implementation mode
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Embodiment
Unit of the present invention refers to pumped storage machine, including generator motor, pump turbine, monitoring system
Deng the present invention program is completely by program of supervisory control system software realization.Referring to Figure 13, a kind of single outlet water-storage electricity of the present embodiment
It stands multimachine removal of load synchronous trigger method, including step：
S1, outlet switch location status judgment module is set in each LCU for generator set program respectively, to unit transmission line circuit
Upper all position of the switch states are judged.When switch " conjunction " position state signal is 0 and " dividing " position state signal is 1,
It obtains and sends out " outlet switch is in open position " judging signal.
S2, generating unit speed situation of change is judged.The machine rotation speed change judgment module receives two-way fluted disc speed measuring letter
Number, when any rotating speed higher than high setting value (such as 101% rated speed) or is less than low setting value (such as in two-way fluted disc speed measuring signal
99% rated speed) when, it obtains and sends out " the machine rotation speed change abnormal " judging signal.
S3, when either switch is in open position and the machine rotation speed change exception on unit transmission line circuit, obtain and send out
" the machine outlet abnormal interrupt " judges signal.
S4, whether unit is judged being incorporated into the power networks.When unit GCB and commutation disconnecting link in closing position when, obtain
To and send out " the machine is in grid-connected state " and judge signal.
S5, when the machine is in grid-connected state and the machine outlet abnormal interrupt, obtain and send out " the machine because outlet interrupt
Tripping " signal.It is performed simultaneously step S6 and S8.
S6, when the outlet switch of abnormal interrupt be more units share switch when, the machine obtain " the machine because outlet interrupt
Tripping " is after signal, generates " the other units of the machine shunt tripping " signal, and by communication mode be sent to outlet switch share it is other
Unit.
S7, in the process of running, receives the shunt tripping signal that other units are sent.When receiving any other units because in outlet
After disconnected shunt tripping local signal, if the machine is in grid-connected state, " other unit shunt tripping the machine " trip signal is sent out, is held
Row step S8.
S8, immediately triggering execute load rejection tripping flow, turn off GCB, stop excitation, guide vane closing, closing
The operations such as main inlet valve.
As shown in Fig. 2, the present embodiment list outlet hydroenergy storage station multimachine removal of load synchronous triggering system, including multiple machines
Group removal of load triggers system.Each load rejection triggering system includes outlet switch location status judgment module, the machine rotating speed
Change judgment module, the machine outlet abnormal interrupt judgment module, the machine grid-connected state judgment module, outlet interruption shunt tripping sheet
The other unit signals of machine judgment module, the machine shunt tripping generate sending module, other units because outlet interrupt tripping judgment module, its
Its unit shunt tripping the machine judgment module, the machine removal of load tripping execution module.Above-mentioned modules are realized by software programming,
Corresponding to corresponding method and step.The concrete function of modules is described in detail below in conjunction with the accompanying drawings.
Fig. 3 is single outlet hydroenergy storage station unit transmission line circuit schematic diagram.Unit 1 and unit 2 pass through outlet switch 1
It is connected with power grid with outlet switch 2, unit 3 and unit 4 are connected by outlet switch 1 and outlet switch 3 with power grid.Work as unit
When being incorporated into the power networks, GCB and commutation disconnecting link are in closing position.When 1 separating brake of outlet switch, all units can not be with power grid
It is connected；When only 2 separating brake of outlet switch, unit 1 and unit 2 can not be connected with power grid；When only 3 separating brake of outlet switch, unit 3
It can not be connected with power grid with unit 4.
In the present embodiment, outlet switch location status judgment module is used for all position of the switch shapes on unit transmission line circuit
State is judged.As shown in figure 4, the identification tactic of the module is：Receive unit transmission line circuit on all switches " conjunction " and
" dividing " position state signal is obtained and is sent out when switch " conjunction " position state signal is 0 and " dividing " position state signal is 1
" outlet switch is in open position " judges signal.
In the present embodiment, the machine rotation speed change judgment module is for receiving two-way fluted disc speed measuring signal and becoming to generating unit speed
Change situation to be judged.As shown in figure 5, the identification tactic of the module is：When any rotating speed is higher than in two-way fluted disc speed measuring signal
High setting value (such as 101% rated speed) or less than low setting value (such as 99% rated speed) when, obtain and send out " the machine rotating speed
Variation abnormality " judges signal.
In the present embodiment, whether the machine outlet abnormal interrupt judgment module is for outlet when being run to set grid-connection in exception
It is disconnected to be judged.As shown in fig. 6, the identification tactic of the module is：When on unit transmission line circuit either switch in open position and
When the machine rotation speed change exception, obtain and send out " the machine outlet abnormal interrupt " judging signal.The transmission line circuit with reference to shown in figure 3,
In Fig. 6 (a), for unit 1 and unit 2, when outlet switch 1 or outlet switch 2 are in open position, and the machine rotation speed change
When abnormal, obtain and send out " the machine outlet abnormal interrupt " judging signal；In Fig. 6 (b), for unit 3 and unit 4, when
Outlet switch 1 or outlet switch 3 are obtained and are sent out " in the machine outlet exception in open position, and when the machine rotation speed change exception
It is disconnected " judge signal.
In the present embodiment, the machine grid-connected state judgment module is used to whether judge unit being incorporated into the power networks.
As shown in fig. 7, the identification tactic of the module is：When unit GCB and commutation disconnecting link in closing position when, obtain and send out " this
Machine is in grid-connected state " judge signal.
In the present embodiment, outlet interrupts shunt tripping the machine judgment module for whether must trip because of outlet down trigger to unit
Judged.As shown in figure 8, the identification tactic of the module is：When the machine is in grid-connected state and the machine outlet abnormal interrupt
When, it obtains and sends out " the machine is interrupted because of outlet and tripped " signal.
In the present embodiment, the other unit signals of the machine shunt tripping generate sending modules for generate and send " the machine shunt tripping its
Its unit " signal gives related unit.Fig. 9 is the other unit logical schematics of 1 shunt tripping of unit.The identification tactic of the module is：When
When the outlet switch of abnormal interrupt is the switch that more units share, after the machine obtains " the machine is interrupted because of outlet and tripped " signal,
It generates " the other units of the machine shunt tripping " signal and the shared other units of outlet switch is sent to by communication mode.With reference to 3 institute of figure
Line loop is shown, after unit 1 obtains unit signals other because of outlet interruption shunt tripping, if abnormal separating brake is outlet switch 1,
Then shunt tripping signal is sent to other three units by unit 1 immediately；If abnormal separating brake is outlet switch 2, unit is immediately
Shunt tripping signal is sent to unit 2.
In the present embodiment, other units interrupt tripping judgment module because of outlet and are used to receive the connection that other units send over
It jumps signal and sends out " other units interrupt shunt tripping the machine because of outlet " signal.As shown in Figure 10, the identification tactic of the module is：When
Receive any other units because outlet interrupt shunt tripping local signal after, obtain and send out " other units because outlet interrupt shunt tripping sheet
Machine " judges signal.
In the present embodiment, other unit shunt tripping the machine judgment modules are for judging whether that beard and hair goes out " other unit shunt tripping sheets
Machine " trip signal.As shown in figure 11, the identification tactic of the module is：When the machine in grid-connected state and receives " other units
Because shunt tripping the machine is interrupted in outlet " when judging signal, obtains and send out " other unit shunt tripping the machine " trip signal.
In the present embodiment, the machine removal of load tripping execution module is for executing load rejection tripping flow.Such as Figure 12 institutes
Show, the identification tactic of the module is：When receiving " the machine because of outlet interrupt trip " signal or " other unit shunt tripping the machine " tripping
When signal, " the machine trips because of outlet abnormal interrupt " signal is obtained and sends out, triggering immediately executes load rejection tripping flow,
GCB is turned off, stops excitation, guide vane closing, close the operations such as main inlet valve.
It can implement the technology that the present invention describes by various means.For example, these technologies may be implemented in hardware, consolidate
In part, software or combinations thereof.For hardware embodiments, processing module may be implemented in one or more application-specific integrated circuits
(ASIC), digital signal processor (DSP), programmable logic device (PLD), field-programmable logic gate array (FPGA), place
Manage device, controller, microcontroller, electronic device, other electronic units for being designed to execute function described in the invention or
In a combination thereof.
For firmware and/or Software implementations, the module for executing functions described herein can be used (for example, process, step
Suddenly, flow etc.) implement the technology.Firmware and/or software code are storable in memory and are executed by processor.Storage
Device may be implemented in processor or outside processor.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer read/write memory medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes：ROM, RAM, magnetic disc or light
The various media that can store program code such as disk.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (10)
1. a kind of list outlet hydroenergy storage station multimachine removal of load synchronous trigger method, which is characterized in that including step：
When current set grid-connection is run, all outlet switch location status and the machine on unit transmission line circuit are obtained in real time and is turned
Fast information, if any outlet switch is in open position on unit transmission line circuit, and the machine rotation speed change is abnormal, then judges that the machine goes out
Whether line abnormal interrupt further judges current unit in grid-connected state, if it is, current unit execute unit get rid of it is negative
Lotus is tripped；Meanwhile whether the outlet switch for judging to be currently located in open position is the shared outlet switch of more units, if
It is then to generate the other unit signals of shunt tripping, the other unit signals of the shunt tripping are sent to the outlet switch by communication mode to be total to
Other units；
After other units receive the other unit signals of above-mentioned shunt tripping, its own unit is judged whether in grid-connected state, such as
Fruit is to be immediately performed load rejection tripping.
2. list outlet hydroenergy storage station multimachine removal of load synchronous trigger method according to claim 1, which is characterized in that
Judge whether abnormal step is the machine rotation speed change：Two-way fluted disc speed measuring signal is received, if appointing in two-way fluted disc speed measuring signal
One rotating speed is higher than high setting value or is less than low setting value, then judges that the machine rotation speed change is abnormal.
3. a kind of list outlet hydroenergy storage station multimachine removal of load synchronous triggering system, which is characterized in that on each unit
Equipped with load rejection trigger module, the load rejection trigger module includes：
Outlet switch location status judgment module, for receiving and judging unit outlet switch location status；
The machine rotation speed change judgment module, the situation of change for judging generating unit speed；
The machine outlet abnormal interrupt judgment module judges signal and unit outlet switch position shape for receiving unit rotation speed change
State signal judges whether outlet is abnormal interruption situation when set grid-connection operation；
The machine grid-connected state judgment module, for judging whether unit is in grid-connected state；
Shunt tripping the machine judgment module is interrupted in outlet, for receiving the machine grid-connected state signal and the machine outlet abnormal interrupt shape
State signal sends out unit because of outlet abnormal interrupt removal of load trip signal；
The other unit signals of the machine shunt tripping generate sending module, for receiving unit because of outlet abnormal interrupt removal of load trip signal
With unit outlet switch position state signal, judge need to which other unit according to unit outlet switch position state signal
Shunt tripping signal is sent, shunt tripping signal is sent out to related unit by communication mode；
Other units are because tripping judgment module is interrupted in outlet, for receiving and judging that other units send over because of outlet exception
Interrupt shunt tripping local signal；
Other unit shunt tripping the machine judgment modules, for receiving the machine grid-connected state signal and other units because of outlet exception
Shunt tripping local signal is interrupted, sends out unit because of outlet abnormal interrupt removal of load trip signal；
The machine removal of load tripping execution module, shunt tripping the machine judgment module and other unit shunt tripping sheets are interrupted for receiving from outlet
The unit that machine judgment module sends over executes load rejection tripping flow because of outlet abnormal interrupt removal of load trip signal.
4. list outlet hydroenergy storage station multimachine removal of load synchronous triggering system according to claim 3, which is characterized in that
Outlet switch location status judgment module identification tactic is：It receives " conjunction " and " dividing " of all outlet switchs on unit transmission line circuit
Position state signal is obtained and is sent out when outlet switch " conjunction " position state signal is 0 and " dividing " position state signal is 1
" outlet switch is in open position " judges signal；
The machine rotation speed change judgment module receives two-way fluted disc speed measuring signal, and identification tactic is：When in two-way fluted disc speed measuring signal
When any rotating speed is higher than high setting value or less than low setting value, obtain and send out " the machine rotation speed change abnormal " judging signal.
5. list outlet hydroenergy storage station multimachine removal of load synchronous triggering system according to claim 3, which is characterized in that
The machine outlet abnormal interrupt judgment module identification tactic is：When either switch turns in open position and the machine on unit transmission line circuit
When fast variation abnormality, obtain and send out " the machine outlet abnormal interrupt " judging signal.
6. list outlet hydroenergy storage station multimachine removal of load synchronous triggering system according to claim 3, which is characterized in that
The machine grid-connected state judgment module identification tactic is：When unit GCB and commutation disconnecting link in closing position when, obtain concurrent
Go out " the machine is in grid-connected state " and judges signal.
7. list outlet hydroenergy storage station multimachine removal of load synchronous triggering system according to claim 3, which is characterized in that
Shunt tripping the machine judgment module identification tactic is interrupted in outlet：When the machine is in grid-connected state and the machine outlet abnormal interrupt,
It obtains and sends out " the machine is interrupted because of outlet and tripped " signal.
8. list outlet hydroenergy storage station multimachine removal of load synchronous triggering system according to claim 3, which is characterized in that
The other unit signals of the machine shunt tripping generate sending module identification tactic：When the outlet switch of abnormal interrupt is that more units share
Switch when, after the machine obtains " the machine because of outlet interrupt trip " signal, generate " the other units of the machine shunt tripping " signal and be sent to
The shared other units of outlet switch；
Other units interrupt tripping judgment module identification tactic because of outlet：When receive any other units because outlet interrupt shunt tripping
After local signal, obtain and send out " other units interrupt shunt tripping the machine because of outlet " judging signal.
9. list outlet hydroenergy storage station multimachine removal of load synchronous triggering system according to claim 3, which is characterized in that
Other unit shunt tripping the machine judgment module identification tactics are：When the machine in grid-connected state and receives that " other units are because of outlet
When interruption shunt tripping the machine " judges signal, obtains and send out " other unit shunt tripping the machine " trip signal.
10. list outlet hydroenergy storage station multimachine removal of load synchronous triggering system according to claim 3, feature exist
In the machine removal of load tripping execution module identification tactic is：When receiving " the machine because of outlet interrupt trip " signal or " other units
When shunt tripping the machine " trip signal, obtains and send out " the machine trips because of outlet abnormal interrupt " signal, triggering immediately executes unit and gets rid of
Load tripping flow turns off GCB, stops excitation, guide vane closing, closes the operations such as main inlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316254.2A CN108631360B (en) | 2018-04-10 | 2018-04-10 | Multi-machine load shedding synchronous triggering method and system for single-outlet pumped storage power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316254.2A CN108631360B (en) | 2018-04-10 | 2018-04-10 | Multi-machine load shedding synchronous triggering method and system for single-outlet pumped storage power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108631360A true CN108631360A (en) | 2018-10-09 |
| CN108631360B CN108631360B (en) | 2020-04-14 |
Family
ID=63705042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810316254.2A Active CN108631360B (en) | 2018-04-10 | 2018-04-10 | Multi-machine load shedding synchronous triggering method and system for single-outlet pumped storage power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108631360B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384707A (en) * | 2018-12-28 | 2020-07-07 | 中核核电运行管理有限公司 | Supplementary trip device and method for ultrahigh-voltage combined switching station of nuclear power plant |
| CN111456888A (en) * | 2020-03-27 | 2020-07-28 | 南京国电南自维美德自动化有限公司 | Method and device for identifying working state of pumped storage unit |
| CN112392650A (en) * | 2020-10-23 | 2021-02-23 | 桑河二级水电有限公司 | Control method for low-frequency suppression during load shedding of bulb tubular unit and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11113212A (en) * | 1997-10-03 | 1999-04-23 | Toshiba Corp | Hydro-electric power generating equipment |
| CN204667384U (en) * | 2015-06-18 | 2015-09-23 | 山东泰山抽水蓄能电站有限责任公司 | Simultaneous interconnecting emulation platform and analogue system under the different operating mode of pump-storage generator |
| CN105863745A (en) * | 2016-05-04 | 2016-08-17 | 大唐韩城第二发电有限责任公司 | Method for controlling combination jump steam turbine when outlet switches of grid connected generator-transformer set trip |
| CN206673564U (en) * | 2017-03-22 | 2017-11-24 | 清远蓄能发电有限公司 | A kind of pump-storage generator accident standby trip protection device |
-
2018
- 2018-04-10 CN CN201810316254.2A patent/CN108631360B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11113212A (en) * | 1997-10-03 | 1999-04-23 | Toshiba Corp | Hydro-electric power generating equipment |
| CN204667384U (en) * | 2015-06-18 | 2015-09-23 | 山东泰山抽水蓄能电站有限责任公司 | Simultaneous interconnecting emulation platform and analogue system under the different operating mode of pump-storage generator |
| CN105863745A (en) * | 2016-05-04 | 2016-08-17 | 大唐韩城第二发电有限责任公司 | Method for controlling combination jump steam turbine when outlet switches of grid connected generator-transformer set trip |
| CN206673564U (en) * | 2017-03-22 | 2017-11-24 | 清远蓄能发电有限公司 | A kind of pump-storage generator accident standby trip protection device |
Non-Patent Citations (4)
| Title |
|---|
| 周海燕: "抽水蓄能电站机组保护闭锁方案分析", 《水电与抽水蓄能》 * |
| 彭煜民: "清远抽水蓄能电站机组控制程序总体设计", 《水电与抽水蓄能》 * |
| 杨帆，彭煜民: "清远抽水蓄能机组工况转换与控制方式浅析", 《水电站机电技术》 * |
| 汪志强，陈泓宇: "抽水蓄能电站一洞多机同时甩负荷实验分析", 《水电与抽水蓄能》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111384707A (en) * | 2018-12-28 | 2020-07-07 | 中核核电运行管理有限公司 | Supplementary trip device and method for ultrahigh-voltage combined switching station of nuclear power plant |
| CN111456888A (en) * | 2020-03-27 | 2020-07-28 | 南京国电南自维美德自动化有限公司 | Method and device for identifying working state of pumped storage unit |
| CN111456888B (en) * | 2020-03-27 | 2021-09-28 | 南京国电南自维美德自动化有限公司 | Method and device for identifying working state of pumped storage unit |
| CN112392650A (en) * | 2020-10-23 | 2021-02-23 | 桑河二级水电有限公司 | Control method for low-frequency suppression during load shedding of bulb tubular unit and storage medium |
| CN112392650B (en) * | 2020-10-23 | 2022-04-08 | 桑河二级水电有限公司 | Control method for low-frequency suppression during load shedding of bulb tubular unit and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108631360B (en) | 2020-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108051706B (en) | Fault identification method and system for automatic standby power supply switching device | |
| CN103595120B (en) | Many inlet wires standby electric power automatic throwing method | |
| CN108631360A (en) | A kind of list outlet hydroenergy storage station multimachine removal of load synchronous trigger method and system | |
| CN106787973B (en) | Drive control device and method for yaw motor of wind generating set | |
| CN104539043A (en) | Automatic-switching device system and method of standby power source | |
| CN111030058B (en) | Power distribution network partition protection method based on 5G communication | |
| CN108233347A (en) | A kind of brushless motor controller Over Current Protection System and over-current protection method | |
| CN209119892U (en) | Diesel-driven generator automatic starting circuit for Hydroelectric Plant electricity system | |
| CN104319743B (en) | The method and apparatus of the main transformer high-pressure side Fast Operating Backup Protection based on station domain information | |
| CN109113928A (en) | The blade pitch system including power source for wind turbine | |
| CN106058827A (en) | Fault protecting method of independent micro-grid | |
| CN111934284A (en) | Protection design method based on closed-loop ship power system | |
| CN105552857A (en) | Working condition judgment method applied to relay protection device of pumped-storage unit | |
| CN108767813B (en) | A kind of hydroenergy storage station transform er differential protection current channel switching method | |
| CN104763576B (en) | A kind of pump-storage generator protection auxiliary signal anomalous discrimination and modification method | |
| CN106329492A (en) | Simple bus protection method based on system topology | |
| CN115800198A (en) | Operation condition identification method and system suitable for pumped storage unit protection | |
| CN204271745U (en) | Automatic switching device of standby power supply system | |
| CN103166228A (en) | Load quick-cut control system | |
| CN110308367A (en) | A kind of DC distribution net system, Fault Locating Method and fault location system | |
| CN109510179A (en) | Split-phase damps the direct current cut-off device and method of MMC and AC circuit breaker cooperation | |
| CN202531349U (en) | PLC (programmable logic controller)-based hydraulic generator protection device | |
| CN109462230A (en) | A kind of load transfer decision system and method based on high-speed bus | |
| CN109127168A (en) | A kind of control method based on disk centrifugal separator deslagging | |
| CN107276416A (en) | Switch power supply equipment and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221011 Address after: 511800 Qingyuan Pumped Storage Power Station office building, Longwan village committee, Taiping Town, Qingxin District, Qingyuan City, Guangdong Province Patentee after: QINGYUAN ENERGY STORAGE AND POWER GENERATION Co.,Ltd. Patentee after: China Southern power grid peak shaving and frequency modulation (Guangdong) energy storage technology Co.,Ltd. Address before: 511800 Longwan industrial zone, Taiping Town, Qingxin District, Qingyuan City, Guangdong Province Patentee before: QINGYUAN ENERGY STORAGE AND POWER GENERATION Co.,Ltd. |