CN105680567B - fault processing method, device and system of converter system - Google Patents
fault processing method, device and system of converter system Download PDFInfo
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- CN105680567B CN105680567B CN201610170005.8A CN201610170005A CN105680567B CN 105680567 B CN105680567 B CN 105680567B CN 201610170005 A CN201610170005 A CN 201610170005A CN 105680567 B CN105680567 B CN 105680567B
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- 238000003672 processing method Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000013481 data capture Methods 0.000 claims description 6
- 238000012790 confirmation Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000873 masking effect Effects 0.000 claims description 4
- 238000003745 diagnosis Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
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- 229910002056 binary alloy Inorganic materials 0.000 description 1
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Classifications
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- H02J13/0006—
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- H02J3/386—
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- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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Abstract
The embodiment of the invention provides a fault processing method, a fault processing device and a fault processing system of a converter system. The converter system comprises a plurality of parallel-connected converters in a back-to-back topology, and the method comprises the following steps: when the converter system fails, determining a failed converter in the converter system; sending a first control signal for controlling the execution of a shutdown operation to the failed converter, and sending a second control signal for controlling the permission of the execution of a startup operation to an un-failed converter in the converter system. According to the fault processing method, device and system of the converter system, the converter with the fault can be isolated when the converter system has the fault, so that the converter without the fault can normally operate, the loss of generated energy is reduced, and the utilization rate of a wind generating set is effectively improved.
Description
Technical field
The present invention relates to technical field of wind power more particularly to a kind of fault handling method of converter system, device and it is
System.
Background technology
In large capacity full power convertor, the mode of the multigroup current transformer parallel connection of generally use realizes power expanding, so as to
Meet powerful demand.Fig. 1 is the structure diagram of the current transformer of back-to-back topological structure in the prior art, as shown in Figure 1,
Pusher side power cell connection generator G1 windings in current transformer, net side power cell connect grid-connected transformer.
It can realize that multiple current transformers are in parallel using the current transformer of above-mentioned back-to-back topological structure.Fig. 2 is in the prior art two
A structure diagram of the current transformer of back-to-back topological structure being connected in parallel, with reference to Fig. 2, G1, G2 be two sets of generator around
Group, G1, G2 are correspondingly connected with respectively with current transformer 1, current transformer 2, and current transformer 1 and current transformer 2 are identical topological structure and capacity
Two current transformers, current transformer 1 and current transformer 2 be connected in parallel after by grid-connected transformer access power grid.
However, the converter system that composes in parallel of multiple current transformers is achieving the purpose that capacity expansion and upgrading simultaneously, also brings
Drawback in terms of troubleshooting.Specifically, multiple current transformers that converter system includes it during failure are without distinguishing.As long as
It breaks down there are one current transformer, just to central controller report overall failure, central controller can control whole current transformers therewith
It shuts down, so as to which generated energy be caused to lose, and then influences the utilization rate of wind power generating set.
Invention content
The purpose of the embodiment of the present invention is, provides a kind of fault handling method of converter system, apparatus and system, with
It realizes the current transformer of the isolated fault when converter system breaks down, makes the current transformer normal operation of non-failure, so as to reduce
Generated energy loses, and effectively promotes the utilization rate of wind power generating set.
For achieving the above object, the embodiment provides a kind of fault handling method of converter system,
The converter system includes multiple current transformers of back-to-back topological structure being connected in parallel, the method includes：In the change
When flowing device system jam, the current transformer of failure in converter system is determined；It sends to control perform shutdown operation the
One control signal to the failure current transformer, and send for control allow perform open machine operation second control signal extremely
The current transformer of non-failure in the converter system.
The embodiment of the present invention additionally provides a kind of fault treating apparatus of converter system, and the converter system includes
Multiple current transformers of back-to-back topological structure being connected in parallel, described device include：Failure current transformer determining module, for determining
The current transformer of failure in converter system；Signal transmitting module is controlled, for sending to control perform shutdown operation first
Signal is controlled to the current transformer of the failure, and sends to control the second control signal that execution is allowed to open machine operation to institute
State the current transformer of non-failure in converter system.
The embodiment of the present invention additionally provides a kind of converter system, including multiple back-to-back topological structures being connected in parallel
Current transformer, the converter system further include fault treating apparatus as in the foregoing embodiment, multiple current transformer difference
It is connect with the fault treating apparatus.
Fault handling method, the apparatus and system of converter system provided in an embodiment of the present invention, for being leaned against by multiple
When the converter system that the current transformer of back of the body topological structure composes in parallel breaks down, the current transformer to break down is determined, further
The current transformer for sending control failure performs the control signal of shutdown operation, and sending control allows the current transformer of non-failure to perform
Open the control signal of machine operation.The current transformer of the isolated fault when converter system breaks down is realized, runs non-failure
Current transformer so as to reduce generated energy loss, and effectively improves the utilization rate of wind power generating set, and then improve wind-force
The safety of generating set and economy.
Description of the drawings
Fig. 1 is the structure diagram of the current transformer of back-to-back topological structure in the prior art；
Fig. 2 is two structure diagrams of the current transformer of back-to-back topological structure being connected in parallel in the prior art；
Fig. 3 is the flow diagram of the fault handling method of the converter system of the embodiment of the present invention one；
Fig. 4 is the flow diagram of the fault handling method of the converter system of the embodiment of the present invention two；
Fig. 5 is the signal interaction figure of the fault handling method of the converter system of the embodiment of the present invention two；
Fig. 6 is the structure diagram of the fault treating apparatus of the converter system of the embodiment of the present invention three.
Specific embodiment
The fault handling method to converter system of the embodiment of the present invention, apparatus and system carry out detailed below in conjunction with the accompanying drawings
Description.
Embodiment one
Fig. 3 is the flow diagram of the fault handling method of the converter system of the embodiment of the present invention one, can be in such as wind
The method is performed in the central controller of power generator group.The converter system includes multiple back-to-back topologys being connected in parallel
The current transformer of structure, as shown in figure 3, the fault handling method of converter system includes：
Step 310：When converter system breaks down, the current transformer of failure in converter system is determined.
In practical applications, for example, central controller determines failure or pass through hardware signal according to the data packet reported
Line determines failure.For another example, central controller is not received in current transformer in predetermined time period (such as 25ms) on controller
It notifies breath, then confirms and break down.There are many approach that determining converter system breaks down as a result, without being limited thereto.
Step 320：The current transformer for controlling the first control signal for performing shutdown operation to failure is sent, and is sent
Allow the current transformer for performing non-failure in the second control signal to converter system for opening machine operation for controlling.
Here, it is emphasized that, " first ", " second " they are only a kind of references, to distinguish different control signals, and
Not as the specific restriction to controlling signal.
The fault handling method of the converter system of the present invention, it is in parallel for the current transformer by multiple back-to-back topological structures
When the converter system of composition breaks down, the current transformer to break down is determined, the current transformer for further sending control failure is held
The control signal of row shutdown operation, and sending control allows the current transformer of non-failure to perform the control signal that the machine that opens operates.From
And it is capable of the current transformer of isolated fault, make the current transformer normal operation of non-failure, so as to reduce generated energy loss, and effectively
The utilization rate of wind power generating set is improved, and then improves safety and the economy of wind power generating set.
Embodiment two
Flow diagrams of the Fig. 4 for the fault handling method of the converter system of the embodiment of the present invention two, the embodiment
It can be considered another concrete implementation scheme of Fig. 3.
With reference to Fig. 4, step 410：Receive the data packet of reflection converter system operating status.
Determine whether converter system has occurred event by data packet reporting fault mode as referred in embodiment one
Barrier and the specifying information about failure.In concrete implementation mode, converter system in real time in wind power generating set
Controller is entreated into row data communication, converter system (controller in such as each current transformer) is to central controller transmission data packet.
Therefore, central controller just needs to receive the data packet before the current transformer for determining failure.
Step 420：The fault type of converter system generation is determined according to the data packet of converter system operating status.
Step 430：When it is expendable fault type to determine fault type, then converter system is controlled to shut down.
In practical applications, converter system is as follows at interval of 20ms direction wind-driven generator groups central controller transmission one
Data packet shown in table 1.Table 1 is the data packet for showing reflection converter system operating status.
Table 1
With reference to table 1, Hearting Back represent that the confirmation of the heartbeat message sended over to central controller is fed back；
Status Word represent the status feedback information of current transformer 1；Fault Word represent fault field, are compiled for example, by using binary system
Code mode, a coding represent a kind of failure；Freq_Grid represents grid-connected frequency；Reactive Power feedback are represented
Reactive power is fed back.
Specifically, can fault type be determined according to above-mentioned fault field.For example, using triad number as faulty word
Section, first of fault field represent expendable fault type for " 0 ", and first of fault field can be extensive for " 1 " representative
Multiple fault type.In practical applications, expendable fault type can be specifically divided into device failure, communication abnormality, control again
The failures such as making sheet internal damage.Rear two bit of fault field can so be corresponded to and assign that aforementioned each is expendable
Fault type.For example, " 00 " represents device fault, " 01 " represents communication abnormality failure.Assuming that the number that central controller receives
It is " 000 " according to the fault field in packet, can determines that converter system is had occurred in expendable fault type by " 000 "
Device failure failure.Similarly, recoverable fault type is also classified into a variety of, specially overcurrent, overvoltage, under-voltage, overfrequency etc.
Failure, similarly or each recoverable fault type assigns two bits.For example, fault field is
" 100 " represent the over current fault in recoverable fault type.
It is aforementioned it is stated that when expendable failure has occurred in converter system, then perform the control current transformer of step 430
The processing of system-down.In addition to this, the failure of generation can also be above-mentioned recoverable failure.Therefore, step 440 and step
450 can be the refinement of step 310 in above-described embodiment one, specific as follows：
Step 440：When it is recoverable fault type to determine fault type, at least one physics is obtained from data packet
Address and corresponding fault field.
Step 450：The current transformer of failure is determined according at least one physical address and corresponding fault field.
Specifically, it may also include for example in data packet other than including the data such as the fault field shown in table 1 in data packet
Corresponding physical address of each current transformer etc., but not limited to this.Central controller can be according to the data packet received as a result,
In data judge that failure has occurred in which current transformer.
After the current transformer of failure is determined, step 460 and step 470 can be step 320 in above-described embodiment one
Refinement, it is specific as follows：
Step 460：First control signal is sent to the current transformer of failure.
Step 470：When confirmation message is completed in the execution that the current transformer for receiving failure returns, second control signal is sent
To the current transformer of non-failure.
Specifically, first control signal includes indicating that the current transformer of failure enters the failure load shedding of failure load shedding operational mode
The current transformer of operational mode position and instruction failure, which performs shielding failed operation and the fault masking of shutdown operation, allows position；The
Two control signals include indicating that the current transformer of non-failure enters the failure load shedding operational mode position of failure load shedding operational mode and refers to
Show that the startup permission position of machine operation is opened in the current transformer execution of non-failure.
Step 480：It sends and controls signal to the current transformer of non-failure for the third that execution is controlled to open machine operation.
Here, " third " is only a kind of reference, to distinguish different control signals, and not as the tool to controlling signal
Body limits.Only learn that its execution of permission is opened machine and operated after receiving aforementioned second control signal due to the current transformer of non-failure, so
And it practical open machine operation the current transformer of non-failure also to be notified to open machine and operate corresponding configuration information and parameter.Therefore, it can incite somebody to action
It carries the configuration information of pass start-up operation and the third control signal of parameter is sent to the current transformer of non-failure so that non-failure
Current transformer start-up operation, and then generator operation are performed according to the configuration information and parameter.
The fault handling method of converter system described in the embodiment of the present invention is elaborated with reference to practical application.
Fig. 5 is the signal interaction figure of the fault handling method of the converter system of the embodiment of the present invention two.With reference to Fig. 5 and figure
2, it is illustrated by taking the converter system that the current transformer by two back-to-back topological structures composes in parallel as an example, it is assumed that current transformer 1
It breaks down, current transformer 2 does not break down.During usual converter system normal operation, current transformer 1 and the normal work of current transformer 2
Make, current transformer failure load shedding operational mode will not be entered.When current transformer 1 breaks down, according to the processing of the prior art, due to
Multiple current transformers that converter system includes it are without distinguishing.Arbitrary current transformer breaks down, and converter system is in
Controller report overall failure is entreated, central controller will control whole current transformers to shut down.
From the purpose of the present invention, for different faults no longer using single whole shutdown processing modes, but tie
The operating mode situation that failure is reflected is closed to be handled.Specifically, it is exactly in original disorderly closedown pattern, increases failure
Load shedding operational mode.As shown in figure 4, if it is reducible failure, judge to be specifically that failure has occurred in which current transformer.
That is converter system is allowed to enter failure load shedding operational mode.In such a mode, under wind power generating set central controller
Send instructions so that current transformer enters failure load shedding operational mode, i.e., to the transmission failure load shedding operational mode position of current transformer 1 and failure
Shielding allows position.After current transformer 1 receives failure load shedding operational mode position and fault masking permission position, corresponding shielding is performed
Failure and theft-resistant link chain operation.After current transformer 1 has performed operation, send operation to central controller and perform completion confirmation.Until
After central controller receives the feedback of current transformer 1, just sending failure load shedding operational mode position to current transformer 2 and start allows
Machine operation is opened in position to perform.Since start-up operation needs relevant parameter to be configured, central controller is sent again to current transformer 2
Start order, the configuration information and parameter for closing start-up operation carried in the order so that current transformer 2 according to the configuration information and
Parameter carries out start-up operation, and then generator operation.For example, relevant configuration word is sent to current transformer 2 to adjust power train and control
Protection parameters, so as to meet entire wind power generating set protection and operating mechanism.
Here, if 2 failure of current transformer, 1 fault-free of current transformer or three and three or more current transformer parallel connection groups
Into converter system, concrete processing procedure need to do respective change, and principle is identical with above-mentioned flow, not do tired state herein.As a result,
The fault handling method of the converter system of the present invention is implemented, when converter system breaks down, controls isolated fault
Current transformer starts the current transformer for allowing operation, compared with prior art, reduces generated energy loss, improves wind-driven generator
The utilization rate of group.
The fault handling method of the converter system of the present invention, it is in parallel for the current transformer by multiple back-to-back topological structures
When the converter system of composition breaks down, the current transformer to break down is determined, the current transformer for further sending control failure is held
The control signal of row shutdown operation, and sending control allows the current transformer of non-failure to perform the control signal that the machine that opens operates.From
And it is capable of the current transformer of isolated fault, make the current transformer normal operation of non-failure, so as to reduce generated energy loss, and effectively
The utilization rate of wind power generating set is improved, and then improves safety and the economy of wind power generating set.
Embodiment three
Fig. 6 is the structure diagram of the fault treating apparatus of the converter system of the embodiment of the present invention three.Available for performing
The fault handling method step of the converter system of the embodiment of the present invention one or embodiment two.
With reference to Fig. 6, the fault treating apparatus of the converter system includes failure current transformer determining module 610 and control signal
Sending module 620.
Failure current transformer determining module 610 is used to determine the current transformer of failure in converter system.
It controls signal transmitting module 620 and is used to control the first control signal for performing shutdown operation to failure for sending
Current transformer, and send the change for controlling non-failure in the second control signal to converter system that execution is allowed to open machine operation
Flow device.
Exemplary embodiment according to the present invention, the fault treating apparatus of the converter system can also include：
Packet-receiving module (not shown) reflects the data packet of converter system operating status for receiving.
Correspondingly, failure current transformer determining module 610 may include：
Data capture unit (not shown) is connect with packet-receiving module, for obtaining at least one from data packet
A physical address and corresponding fault field.
Failure determination unit (not shown) is connect with data capture unit, for according at least one physical address and
Corresponding fault field determines the current transformer of failure.
Specifically, control signal transmitting module 620 can include：
First control signal transmitting element (not shown) is used to send first control signal to the current transformer of failure.
Second control signal transmitting element (not shown) is used for complete in the execution of current transformer return for receiving failure
During into confirmation message, second control signal is sent to the current transformer of non-failure.
Wherein, first control signal includes indicating that the current transformer of failure enters the failure load shedding fortune of failure load shedding operational mode
Row mode bit and the current transformer of instruction failure, which perform shielding failed operation and the fault masking of shutdown operation, allows position；Second
Control signal includes indicating that the current transformer of non-failure enters failure load shedding operational mode position and the instruction of failure load shedding operational mode
The startup that machine operation is opened in the current transformer execution of non-failure allows position.
Preferably, the fault treating apparatus of the converter system may also include：
Fault diagnosis module (not shown) is connect with packet-receiving module and data capture unit connection, for root
The fault type of converter system generation is determined according to the data packet of converter system operating status.
Control module (not shown) is shut down to be used to when it is expendable fault type to determine fault type, then control
Converter system processed is shut down.
Further, control signal transmitting module 620 can also be used to send performs the third control for opening machine operation for controlling
Signal processed to non-failure current transformer.
Preferably, the fault treating apparatus of converter system can be integrated in the central controller of wind power generating set.
The fault treating apparatus of the converter system of the present invention, it is in parallel for the current transformer by multiple back-to-back topological structures
When the converter system of composition breaks down, the current transformer to break down is determined, the current transformer for further sending control failure is held
The control signal of row shutdown operation, and sending control allows the current transformer of non-failure to perform the control signal that the machine that opens operates.From
And it is capable of the current transformer of isolated fault, make the current transformer normal operation of non-failure, so as to reduce generated energy loss, and effectively
The utilization rate of wind power generating set is improved, and then improves safety and the economy of wind power generating set.
Example IV
Converter system include multiple current transformers of back-to-back topological structure being connected in parallel, converter system further include as
The fault treating apparatus of converter system described in previous embodiment two, multiple current transformers respectively at the failure of converter system
Manage device connection.
The converter system of the present invention when converter system breaks down, determines that event occurs by fault treating apparatus
The current transformer of barrier so as to which the current transformer for sending control failure performs the control signal of shutdown operation, and sends control permission not
The control signal of machine operation is opened in the current transformer execution of failure.The current transformer of failure in isolated converters system is realized, makes not event
The current transformer normal operation of barrier.Reduce generated energy loss, and effectively improve the utilization rate of wind power generating set so that wind
Power generator group runs more secure, reliable.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of fault handling method of converter system, which is characterized in that the converter system includes multiple be connected in parallel
Back-to-back topological structure current transformer, the method includes：
Receive the data packet for reflecting the converter system operating status；
According to the data packet of the converter system operating status, the current transformer of failure in the converter system is determined；
First control signal is sent to the current transformer of the failure, and is sent in second control signal to the converter system
The current transformer of non-failure, wherein, the current transformer that the first control signal is used to indicate the failure enters the operation of failure load shedding
Pattern, and the current transformer for being used to indicate the failure performs shielding failed operation and shutdown operation；The second control signal
The current transformer for being used to indicate the non-failure enters failure load shedding operational mode, and the current transformer for being used to indicate the non-failure is held
Row opens machine operation.
2. fault handling method according to claim 1, which is characterized in that the processing packet of the current transformer of the determining failure
It includes：
At least one physical address and corresponding fault field are obtained from the data packet；
The current transformer of failure is determined according at least one physical address and corresponding fault field.
3. fault handling method according to claim 1 or 2, which is characterized in that the transmission first control signal to institute
The current transformer of failure in converter system is stated, and sends the unsteady flow of non-failure in second control signal to the converter system
Device includes：
The first control signal is sent to the current transformer of the failure；
When confirmation message is completed in the execution that the current transformer for receiving the failure returns, the second control signal is sent to institute
State the current transformer of non-failure；
Wherein, the first control signal includes indicating that the current transformer of the failure enters the failure drop of failure load shedding operational mode
Carrying row mode bit and the current transformer of the instruction failure, which perform shielding failed operation and the fault masking of shutdown operation, to be allowed
Position；The second control signal includes indicating that the current transformer of the non-failure enters the failure load shedding fortune of failure load shedding operational mode
The startup that machine operation is opened in the current transformer execution of row mode bit and the instruction non-failure allows position.
4. fault handling method according to claim 2, which is characterized in that reflect the converter system in described receive
After the data packet of operating status and before the current transformer of failure is determined, the method further includes：
The fault type of the converter system generation is determined according to the data packet of the converter system operating status；
When it is expendable fault type to determine the fault type, then the converter system is controlled to shut down；
When it is recoverable fault type to determine the fault type, failure in the determining converter system is performed
Current transformer sends first control signal to the current transformer of the failure, and sends second control signal to the current transformer system
The processing of the current transformer of non-failure in system.
5. according to the fault handling method described in any one of claim 1,2 and 4, which is characterized in that the method is described
Send for control allow perform open machine operation second control signal to the converter system in non-failure current transformer it
After further include：It sends and controls signal to the current transformer of the non-failure for the third that execution is controlled to open machine operation.
6. a kind of fault treating apparatus of converter system, which is characterized in that the converter system includes multiple be connected in parallel
Back-to-back topological structure current transformer, described device includes：
Packet-receiving module, for receiving the data packet for reflecting the converter system operating status；
Failure current transformer determining module for the data packet according to the converter system operating status, determines the current transformer
The current transformer of failure in system；
Signal transmitting module is controlled, for sending first control signal to the current transformer of the failure, and sends the second control
The current transformer of non-failure in signal to the converter system, wherein, the first control signal is used to indicate the failure
Current transformer enters failure load shedding operational mode, and the current transformer for being used to indicate the failure performs shielding failed operation and shutdown
Operation；The current transformer that the second control signal is used to indicate the non-failure enters failure load shedding operational mode, and for referring to
Show that machine operation is opened in the current transformer execution of the non-failure.
7. fault treating apparatus according to claim 6, which is characterized in that
The failure current transformer determining module includes：
Data capture unit is connect with the packet-receiving module, for obtaining at least one physics from the data packet
Address and corresponding fault field；
Failure determination unit is connect with the data capture unit, for according at least one physical address and corresponding
Fault field determines the current transformer of failure.
8. fault treating apparatus according to claim 7, which is characterized in that described device further includes：
Fault diagnosis module, connect with the packet-receiving module and the data capture unit connects, for according to
The data packet of converter system operating status determines the fault type that the converter system occurs；
Control module is shut down, is connect with the fault diagnosis module, for determining the fault type for expendable event
When hindering type, then the converter system is controlled to shut down.
9. according to the fault treating apparatus described in any one of claim 6-8, which is characterized in that it is integrated in wind-driven generator
In the central controller of group.
10. a kind of wind power generating set, the converter system of the wind power generating set include it is multiple be connected in parallel it is back-to-back
The current transformer of topological structure, which is characterized in that the wind power generating set is further included as described in any one of claim 6-9
Fault treating apparatus, multiple current transformers are connect respectively with the fault treating apparatus.
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| CN201610170005.8A CN105680567B (en) | 2016-03-23 | 2016-03-23 | fault processing method, device and system of converter system |
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| CN201610170005.8A CN105680567B (en) | 2016-03-23 | 2016-03-23 | fault processing method, device and system of converter system |
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| CN106286129B (en) * | 2016-10-12 | 2021-04-06 | 北京金风科创风电设备有限公司 | Wind generating set and control method thereof |
| CN106672193B (en) * | 2016-10-28 | 2018-11-13 | 上海电气富士电机电气技术有限公司 | A kind of ship power supply failure self-balancing system and its method |
| CN109703570B (en) * | 2017-10-25 | 2020-09-29 | 上海汽车集团股份有限公司 | Fault processing method and device of motor control system |
| CN109149626B (en) | 2017-12-28 | 2022-01-25 | 北京金风科创风电设备有限公司 | Operation control method, device and system of generator set |
| CN109245164B (en) * | 2018-10-23 | 2021-03-30 | 北京天诚同创电气有限公司 | Fault processing method, device and system for modular wind power converter |
| CN110518587B (en) * | 2019-06-13 | 2023-12-26 | 江苏经纬轨道交通设备有限公司 | Phase shift control method, system and device for multiple converter system and storage medium |
| CN112510979B (en) * | 2020-11-25 | 2022-11-01 | 上海电气风电集团股份有限公司 | Converter fault-tolerant control method and system and wind generating set |
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| CN102832794B (en) * | 2012-08-22 | 2015-01-14 | 深圳市英威腾电气股份有限公司 | Frequency converter system and fault processing method thereof |
| CN102891501B (en) * | 2012-09-25 | 2014-12-10 | 上海交通大学 | Distributed control system of high-power current transformer |
| CN103414242B (en) * | 2013-08-27 | 2016-05-18 | 西南交通大学 | A kind of electrified railway in-phase power supply method and standby host structure |
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