CN108183642A - 660MW supercritical unit voltage stabilizing washing pipe analysis systems - Google Patents
660MW supercritical unit voltage stabilizing washing pipe analysis systems Download PDFInfo
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- CN108183642A CN108183642A CN201711496798.3A CN201711496798A CN108183642A CN 108183642 A CN108183642 A CN 108183642A CN 201711496798 A CN201711496798 A CN 201711496798A CN 108183642 A CN108183642 A CN 108183642A
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- demagnetization
- make control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
- H02P9/12—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal
- H02P9/123—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for demagnetising; for reducing effects of remanence; for preventing pole reversal for demagnetising; for reducing effects of remanence
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses 660MW supercritical unit voltage stabilizing washing pipe analysis systems.Belong to the protection technique field of generator when voltage stabilizing washing pipe analysis system breaks down, which can carry out demagnetization operation to generator automatically when power failure occurs in voltage stabilizing washing pipe analysis system ontology.Including controller, degaussing switch device, voltage stabilizing washing pipe analysis system ontology and the generator for providing for voltage stabilizing washing pipe analysis system ontology mains power；Degaussing switch device includes the main break-make control module of No.1, No. two main break-make control modules and demagnetization module；The input terminal of the input terminal of the main break-make control module of No.1, the input terminal of No. two main break-make control modules and demagnetization module is respectively coupled on the power output end of generator；The output terminal of the main break-make control module of No.1 and the output terminal of No. two main break-make control modules are respectively coupled on the power input of voltage stabilizing washing pipe analysis system ontology.
Description
Technical field
The present invention relates to during the failure of voltage stabilizing washing pipe analysis system to the protection technique field of generator, and in particular to
660MW supercritical unit voltage stabilizing washing pipe analysis systems.
Background technology
The electricity consumption of voltage stabilizing washing pipe analysis system ontology is larger, breaks suddenly when voltage stabilizing washing pipe analysis system ontology breaks down
When electric, the electric energy that disconnects suddenly or huge rush is generated to the generator that mains power is provided for voltage stabilizing washing pipe analysis system ontology
It hits, generator is even burnt out when serious.Therefore one kind is designed when power failure occurs in voltage stabilizing washing pipe analysis system ontology, also not
The system of easy burn-out generator is very necessary.
Invention content
The present invention is to solve easy burn-out generator when power failure occurs in existing voltage stabilizing washing pipe analysis system ontology
Deficiency, provides a kind of 660MW supercritical units voltage stabilizing washing pipe analysis system, which occurs in voltage stabilizing washing pipe analysis system ontology
During power failure, demagnetization operation can be carried out to generator automatically, protection generator will not be because of voltage stabilizing washing pipe analysis system ontology
The situation for power failure occur and generator being caused to be burned occurs, and extends the service life of generator.
More than technical problem is solved by following technical proposal：
660MW supercritical unit voltage stabilizing washing pipe analysis systems, including controller, voice prompting device, communication module, degaussing switch dress
It puts, voltage stabilizing washing pipe analysis system ontology and the generator that mains power is provided for voltage stabilizing washing pipe analysis system ontology；Degaussing switch
Device includes the main break-make control module of No.1, No. two main break-make control modules and demagnetization module；The main break-make control module of No.1
The power supply that the input terminal of input terminal, the input terminal of No. two main break-make control modules and demagnetization module is respectively coupled in generator is defeated
In outlet；The output terminal of the main break-make control module of No.1 and the output terminal of No. two main break-make control modules are respectively coupled in voltage stabilizing
On the power input of washing pipe analysis system ontology；The main break-make control mould of control terminal, No.1 of voltage stabilizing washing pipe analysis system ontology
The control terminal of the control terminal of block, the control terminal of No. two main break-make control modules and demagnetization module is connect respectively with controller.
When power failure occurs in voltage stabilizing washing pipe analysis system ontology, demagnetization module starts immediately carries out demagnetization to generator
Operation, so as to which generator be protected to be not easy to be burned.This programme, can be certainly when power failure occurs in voltage stabilizing washing pipe analysis system ontology
Dynamic that demagnetization operation is carried out to generator, protection generator power failure will not occurs because of voltage stabilizing washing pipe analysis system ontology and lead
The situation that generator is burned is caused to occur, so as to extend the service life of generator.Simple in structure, safety is good, and reliability is high.
Preferably, further including No.1 node and No. two nodes, the main break-make control module of No.1 includes No.1 left-handed opening, one
Number relay and the right switch of No.1, No. two main break-make control modules include No. two left-handed openings, No. two relays and No. two right switches,
Demagnetization module includes demagnetization left-handed opening, demagnetization relay, the right switch of demagnetization and de-excitation resistance；
The left end of the left end of No.1 left-handed opening, the left end of No. two left-handed openings and demagnetization left-handed opening is connected on No.1 node；
The right end of No.1 left-handed opening is connected to the left end of No.1 relay, and the right end of No.1 relay is connected to a left side for the right switch of No.1
End, the right end of the right switch of No.1 are connected on No. two nodes；The right end of No. two left-handed openings is connected to the left end of No. two relays, and two
The right end of number relay is connected to the left end of No. two right switches, and the right end of No. two right switches is connected on No. two nodes；Demagnetization is left
Switch right end is connected to the left end of demagnetization relay, and the right end of demagnetization relay is connected to the left end of the right switch of demagnetization, and demagnetization is right
The right end of switch is connected on de-excitation resistance；The power input of voltage stabilizing washing pipe analysis system ontology is connected on No. two nodes；
The power output end of generator is connected on No.1 node；
The control of the control terminal of the right switch of the control terminal of No.1 left-handed opening, the control terminal of No.1 relay, No.1, No. two left-handed openings
End, the control of the control terminal of No. two relays, the control terminal, the control terminal, demagnetization relay of demagnetization left-handed opening of No. two right switches
The control terminal of end and the right switch of demagnetization is connect respectively with controller.
This structure can be in No. two main break-make control module free time or when No.1 main break-make control module free time is right respectively
It carries out switch opening/closing time detection, and reliability is high.
Preferably, the demagnetization control of degaussing switch device is as follows：If the main break-make control module of No.1 is sent out from controller
No.1 open command starts to the main break-make control module of No.1 to complete a length of T1 during the disconnection reaction needed for disconnection action, if No. two
Main break-make control module completes disconnection action institute since controller sends out No. two open commands to No. two main break-make control modules
A length of T2 during the disconnection reaction needed, if demagnetization module is completed to be connected since controller sends out demagnetization turn-on command to demagnetization module
A length of T3 when conducting needed for action is reacted；If the generator system corresponding to degaussing switch device demagnetization switching needed for when
Between be H；When the main break-make control module conducting of No.1, No. two main break-make control modules are then off, and are being controlled at this time
The value of the disconnection reaction duration T2 of No. two main break-make control modules and demagnetization module conducting reaction duration T3 are detected under the control of device
Value；Calculate demagnetization module be conducting to No. two main break-make control modules disconnect between time difference H2, then H2=| T2-T3 |≤
H；When back to back next time when to carry out demagnetization operation in the case of No. two main break-make control modules conductings, if working as T2-T3
When >=0, then the H2 times internal controller after No. two open commands start is sent out to No. two main break-make control modules just in controller
Demagnetization turn-on command is sent out to demagnetization module；If as T2-T3 ＜ 0, sent out in controller to No. two main break-make control modules
Demagnetization module will be sent out demagnetization turn-on command by going out the H2 times internal controller before No. two open commands start；When No. two masters are logical
During disconnected control module conducting, the main break-make control module of No.1 is then off, and detects one under the control of the controller at this time
The value of the disconnection reaction duration T1 of number main break-make control module and the value of demagnetization module conducting reaction duration T3；Calculate demagnetization mould
Block be conducting to the main break-make control module of No.1 disconnect between time difference H1, then H1=| T1-T3 |≤H；When it is back to back next time
When to carry out demagnetization operation in the case of the conducting of No.1 main break-make control module, if as T1-T3 >=0, controller to
The main break-make control module of No.1, which sends out the H1 times internal controller after No.1 open command starts and demagnetization module will be sent out, goes out
Magnetic turn-on command；If as T1-T3 ＜ 0, No.1 open command is sent out to the main break-make control module of No.1 in controller and started
Preceding H1 times internal controller will send out demagnetization module demagnetization turn-on command.
Preferably, when duration T1 is reacted in the disconnection for detecting the main break-make control module of No.1, under the control of the controller,
No.1 left-handed opening and the right switch of No.1 is first allowed all to disconnect, then detects the disconnection reaction duration of No.1 relay, the No.1 relay
The disconnection reaction duration of device is T1；It has detected after the disconnection reaction duration T1 of No.1 relay then by No.1 left-handed opening and one
Number right switch is all closed, and No.1 relay is allowed to be off；In the disconnection reaction of No. two main break-make control modules of detection
During duration T2, under the control of the controller, No. two left-handed openings and No. two right switches is first allowed all to disconnect, then detect No. two relays
Disconnection reaction duration, No. two relays disconnection reaction duration be T2；When having detected the disconnection reaction of No. two relays
Then the right switch of No. two left-handed openings and No. two is all closed, and No. two relays is allowed to be off after long T2；It goes out in detection
During magnetic module conducting reaction duration T3, under the control of the controller, demagnetization left-handed opening and the right switch of demagnetization is first allowed all to disconnect, then
The closed reaction duration of demagnetization relay is detected, the closed reaction duration of the demagnetization relay is T3；Demagnetization relay is detected
Then the right switch of demagnetization left-handed opening and demagnetization is all closed after the closed reaction duration T3 of device, and demagnetization relay is allowed to be in and is disconnected
State.
Preferably, in the case of if the main break-make control module of No.1 and No. two main break-make control modules are all in conducting state
Demagnetization process be, when T1 ＜ T2 if in demagnetization when, the main break-make control module of No.1 will break in No. two main break-make control modules
It is first disconnected before opening；Conversely, if when T1 ＞ T2 in demagnetization when, No. two main break-make control modules will be in the main break-make control mould of No.1
Block first disconnects before disconnecting.
The present invention can reach following effect：
The present invention can carry out demagnetization operation to generator automatically, protect when power failure occurs in voltage stabilizing washing pipe analysis system ontology
Hair care motor will not occur because of the situation that voltage stabilizing washing pipe analysis system ontology power failure occurs and generator is caused to be burned,
So as to extend the service life of generator.Simple in structure, safety is good, and reliability is high.
Description of the drawings
Fig. 1 is a kind of schematic diagram of circuit principle connecting structure of the present invention.
Fig. 2 is a kind of circuit theory connection structure schematic block diagram of the present invention.
Specific embodiment
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Embodiment：660MW supercritical unit voltage stabilizing washing pipe analysis systems, referring to shown in Fig. 1, Fig. 2.Including controller w4,
Voice prompting device w20, communication module w21, degaussing switch device w19, voltage stabilizing washing pipe analysis system ontology w18 and for voltage stabilizing washing pipe
Analysis system ontology provides the generator w17 of mains power；Degaussing switch device include the main break-make control module w1 of No.1, No. two
Main break-make control module w2 and demagnetization module w3；The input terminal of the main break-make control module of No.1, No. two main break-make control modules
Input terminal and the input terminal of demagnetization module are respectively coupled on the power output end of generator；The main break-make control module of No.1
Output terminal and the output terminal of No. two main break-make control modules are respectively coupled the power input in voltage stabilizing washing pipe analysis system ontology
On end；The control of voice prompting device, communication module, the main break-make control module of control terminal, No.1 of voltage stabilizing washing pipe analysis system ontology
The control terminal at end processed, the control terminal of No. two main break-make control modules and demagnetization module is connect respectively with controller.
No.1 node w5 and No. two node w6 are further included, the main break-make control module of No.1 includes No.1 left-handed opening w7, No.1
Relay w8 and the right switch w9 of No.1, No. two main break-make control modules include No. two left-handed opening w10, No. two relay w11 and two
Number right switch w12, demagnetization module include the right switch w15 of demagnetization left-handed opening w13, demagnetization relay w14, demagnetization and de-excitation resistance
w16；
The left end of the left end of No.1 left-handed opening, the left end of No. two left-handed openings and demagnetization left-handed opening is connected on No.1 node；
The right end of No.1 left-handed opening is connected to the left end of No.1 relay, and the right end of No.1 relay is connected to a left side for the right switch of No.1
End, the right end of the right switch of No.1 are connected on No. two nodes；The right end of No. two left-handed openings is connected to the left end of No. two relays, and two
The right end of number relay is connected to the left end of No. two right switches, and the right end of No. two right switches is connected on No. two nodes；Demagnetization is left
Switch right end is connected to the left end of demagnetization relay, and the right end of demagnetization relay is connected to the left end of the right switch of demagnetization, and demagnetization is right
The right end of switch is connected on de-excitation resistance；The power input of voltage stabilizing washing pipe analysis system ontology is connected on No. two nodes；
The power output end of generator is connected on No.1 node；
The control of the control terminal of the right switch of the control terminal of No.1 left-handed opening, the control terminal of No.1 relay, No.1, No. two left-handed openings
End, the control of the control terminal of No. two relays, the control terminal, the control terminal, demagnetization relay of demagnetization left-handed opening of No. two right switches
The control terminal of end and the right switch of demagnetization is connect respectively with controller.
The demagnetization control of 660MW supercritical unit voltage stabilizing washing pipe analysis systems is as follows：
If the main break-make control module of No.1 is completed since controller sends out No.1 open command to the main break-make control module of No.1
A length of T1 when disconnection needed for disconnection action is reacted,
If No. two main break-make control modules are completed since controller sends out No. two open commands to No. two main break-make control modules
A length of T2 when disconnection needed for disconnection action is reacted,
If the conducting that demagnetization module is completed to demagnetization module needed for turn-on action since controller sends out demagnetization turn-on command is anti-
Seasonable a length of T3；
If the time needed for the demagnetization switching of the generator system corresponding to 660MW supercritical unit voltage stabilizing washing pipe analysis systems is
H；
When the main break-make control module conducting of No.1, No. two main break-make control modules are then off, at this time in controller
Control under the value of disconnection reaction duration T2 of No. two main break-make control modules of detection and demagnetization module conducting reaction duration T3
Value；Calculate demagnetization module be conducting to No. two main break-make control modules disconnect between time difference H2, then have H2=| T2-T3 |≤
H；When back to back next time when to carry out demagnetization operation in the case of No. two main break-make control modules conductings, if working as T2-T3
When >=0, then the H2 times internal controller after No. two open commands start is sent out to No. two main break-make control modules just in controller
Demagnetization turn-on command is sent out to demagnetization module；If it during T2-T3 ＜ 0, is sent out in controller to No. two main break-make control modules
H2 times internal controller before No. two open commands start will send out demagnetization module demagnetization turn-on command；
When No. two main break-make control module conductings, the main break-make control module of No.1 is then off, at this time in controller
Control under the value of disconnection reaction duration T1 of the detection main break-make control module of No.1 and demagnetization module conducting reaction duration T3
Value；Calculate demagnetization module be conducting to the main break-make control module of No.1 disconnect between time difference H1, then have H1=| T1-T3 |≤
H；When back to back next time when to carry out demagnetization operation in the case of the conducting of No.1 main break-make control module, if working as T1-T3
When >=0, then the H1 times internal controller after No.1 open command starts is sent out to the main break-make control module of No.1 just in controller
Demagnetization turn-on command is sent out to demagnetization module；If it during T1-T3 ＜ 0, is sent out in controller to the main break-make control module of No.1
H1 times internal controller before No.1 open command starts will send out demagnetization module demagnetization turn-on command.
When duration T1 is reacted in the disconnection for detecting the main break-make control module of No.1, under the control of the controller, No.1 is first allowed
Left-handed opening and the right switch of No.1 all disconnect, and then detect the disconnection reaction duration of No.1 relay, the disconnection of the No.1 relay
It is T1 to react duration；It has detected after the disconnection reaction duration T1 of No.1 relay then by No.1 left-handed opening and the right switch of No.1
It is all closed, and No.1 relay is allowed to be off；
When duration T2 is reacted in the disconnection for detecting No. two main break-make control modules, under the control of the controller, No. two left sides is first allowed to be opened
It closes and No. two right switches all disconnects, then detect the disconnection reaction duration of No. two relays, the disconnection reaction of No. two relays
Duration is T2；Then the right switch of No. two left-handed openings and No. two is all closed after having detected the disconnection reaction duration T2 of No. two relays
It closes, and No. two relays is allowed to be off；
When detecting demagnetization module conducting reaction duration T3, under the control of the controller, demagnetization left-handed opening and the demagnetization right side is first allowed to be opened
Pass all disconnects, and then detects the closed reaction duration of demagnetization relay, the closed reaction duration of the demagnetization relay is T3；Inspection
Surveyed after the closed reaction duration T3 of demagnetization relay and to be then all closed the right switch of demagnetization left-handed opening and demagnetization, and allow demagnetization after
Electric appliance is off.
If the main break-make control module of No.1 and No. two main break-make control modules are all in the demagnetization mistake in the case of conducting state
Cheng Shi, when T1 ＜ T2 if in demagnetization when, the main break-make control module of No.1 will be before No. two main break-make control modules disconnect first
It disconnects；Conversely, if when T1 ＞ T2 in demagnetization when, No. two main break-make control modules will disconnect it in the main break-make control module of No.1
It is preceding first to disconnect.
The present embodiment can be in No. two main break-make control module free time or when No.1 main break-make control module free time is right respectively
It carries out switch opening/closing time detection, and reliability is high.
When power failure occurs in voltage stabilizing washing pipe analysis system ontology, demagnetization module starts immediately carries out demagnetization to generator
Operation, so as to which generator be protected to be not easy to be burned.The present embodiment is when power failure occurs in voltage stabilizing washing pipe analysis system ontology, energy
Automatically carry out demagnetization operation to generator, protection generator will not occur power failure because of voltage stabilizing washing pipe analysis system ontology and
The situation that generator is burned is caused to occur, so as to extend the service life of generator.Simple in structure, safety is good, reliability
It is high.
Embodiments of the present invention are described above in conjunction with attached drawing, however, the implementation is not limited to the above embodiments, this field
Those of ordinary skill can be with various changes and modifications may be made within the scope of the appended claims.
Claims (5)
1.660MW supercritical unit voltage stabilizing washing pipe analysis systems, which is characterized in that including controller, voice prompting device, communication mould
Block, degaussing switch device, voltage stabilizing washing pipe analysis system ontology and the hair that mains power is provided for voltage stabilizing washing pipe analysis system ontology
Motor；The degaussing switch device includes the main break-make control module of No.1, No. two main break-make control modules and demagnetization module；It is described
The input terminal of the input terminal of the main break-make control module of No.1, the input terminal of No. two main break-make control modules and demagnetization module is all distinguished
It is connected on the power output end of generator；The output terminal and No. two main break-make control modules of the main break-make control module of No.1
Output terminal be respectively coupled on the power input of voltage stabilizing washing pipe analysis system ontology；The voice prompting device, communication mould
Block, voltage stabilizing washing pipe analysis system ontology the main break-make control module of control terminal, No.1 control terminal, No. two main break-make control modules
Control terminal and the control terminal of demagnetization module connect respectively with controller.
2. 660MW supercritical units voltage stabilizing washing pipe analysis system according to claim 1, which is characterized in that further include one
Number node and No. two nodes, the main break-make control module of No.1 include No.1 left-handed opening, No.1 relay and the right switch of No.1,
No. two main break-make control modules include No. two left-handed openings, No. two relays and No. two right switches, and the demagnetization module includes
Demagnetization left-handed opening, demagnetization relay, the right switch of demagnetization and de-excitation resistance；
The left end of the left end of the No.1 left-handed opening, the left end of No. two left-handed openings and demagnetization left-handed opening is connected to No.1 node
On；The right end of the No.1 left-handed opening is connected to the left end of No.1 relay, and the right end of No.1 relay is connected to the No.1 right side and opens
The left end of pass, the right end of the right switch of No.1 are connected on No. two nodes；The right end of No. two left-handed openings is connected to No. two relays
The left end of device, the right end of No. two relays are connected to the left end of No. two right switches, and the right end of No. two right switches is connected to No. two sections
Point on；Demagnetization left-handed opening right end is connected to the left end of demagnetization relay, and the right end of demagnetization relay is connected to the right switch of demagnetization
Left end, the right end of the right switch of demagnetization are connected on de-excitation resistance；The power input of voltage stabilizing washing pipe analysis system ontology is connected to
On No. two nodes；The power output end of generator is connected on No.1 node；
The control of the control terminal of the right switch of the control terminal of No.1 left-handed opening, the control terminal of No.1 relay, No.1, No. two left-handed openings
End, the control of the control terminal of No. two relays, the control terminal, the control terminal, demagnetization relay of demagnetization left-handed opening of No. two right switches
The control terminal of end and the right switch of demagnetization is connect respectively with controller.
3. 660MW supercritical units voltage stabilizing washing pipe analysis system according to claim 2, which is characterized in that degaussing switch
The demagnetization control of device is as follows：
If the main break-make control module of No.1 is completed since controller sends out No.1 open command to the main break-make control module of No.1
A length of T1 when disconnection needed for disconnection action is reacted, is opened if No. two main break-make control modules send out No. two open commands from controller
Begin to No. two main break-make control modules to complete a length of T2 during the disconnection reaction needed for disconnection action, if demagnetization module is sent out from controller
Go out demagnetization turn-on command and start to demagnetization module to complete a length of T3 during the conducting reaction needed for turn-on action；If degaussing switch device
Time needed for the demagnetization switching of corresponding generator system is H；
When the main break-make control module conducting of No.1, No. two main break-make control modules are then off, at this time in controller
Control under the value of disconnection reaction duration T2 of No. two main break-make control modules of detection and demagnetization module conducting reaction duration T3
Value；Calculate demagnetization module be conducting to No. two main break-make control modules disconnect between time difference H2, then H2=| T2-T3 |≤H；
When back to back next time when to carry out demagnetization operation in the case of No. two main break-make control modules conductings, if when T2-T3 >=0
When, then sending out the H2 times internal controller after No. two open commands start to No. two main break-make control modules in controller will be right
Demagnetization module sends out demagnetization turn-on command；If as T2-T3 ＜ 0, two are sent out to No. two main break-make control modules in controller
H2 times internal controller before number open command starts will send out demagnetization module demagnetization turn-on command；
When No. two main break-make control module conductings, the main break-make control module of No.1 is then off, at this time in controller
Control under the value of disconnection reaction duration T1 of the detection main break-make control module of No.1 and demagnetization module conducting reaction duration T3
Value；Calculate demagnetization module be conducting to the main break-make control module of No.1 disconnect between time difference H1, then H1=| T1-T3 |≤H；
When back to back next time when to carry out demagnetization operation in the case of the conducting of No.1 main break-make control module, if when T1-T3 >=0
When, then sending out the H1 times internal controller after No.1 open command starts to the main break-make control module of No.1 in controller will be right
Demagnetization module sends out demagnetization turn-on command；If as T1-T3 ＜ 0, one is sent out to the main break-make control module of No.1 in controller
H1 times internal controller before number open command starts will send out demagnetization module demagnetization turn-on command.
4. 660MW supercritical units voltage stabilizing washing pipe analysis system according to claim 3, which is characterized in that in detection one
During the disconnection reaction duration T1 of number main break-make control module, under the control of the controller, No.1 left-handed opening and the No.1 right side is first allowed to be opened
Pass all disconnects, and then detects the disconnection reaction duration of No.1 relay, the disconnection reaction duration of the No.1 relay is T1；Inspection
Then the right switch of No.1 left-handed opening and No.1 is all closed after having surveyed the disconnection reaction duration T1 of No.1 relay, and allow No.1 after
Electric appliance is off；
When duration T2 is reacted in the disconnection for detecting No. two main break-make control modules, under the control of the controller, No. two left sides is first allowed to be opened
It closes and No. two right switches all disconnects, then detect the disconnection reaction duration of No. two relays, the disconnection reaction of No. two relays
Duration is T2；Then the right switch of No. two left-handed openings and No. two is all closed after having detected the disconnection reaction duration T2 of No. two relays
It closes, and No. two relays is allowed to be off；
When detecting demagnetization module conducting reaction duration T3, under the control of the controller, demagnetization left-handed opening and the demagnetization right side is first allowed to be opened
Pass all disconnects, and then detects the closed reaction duration of demagnetization relay, the closed reaction duration of the demagnetization relay is T3；Inspection
Surveyed after the closed reaction duration T3 of demagnetization relay and to be then all closed the right switch of demagnetization left-handed opening and demagnetization, and allow demagnetization after
Electric appliance is off.
5. 660MW supercritical units voltage stabilizing washing pipe analysis system according to claim 3, which is characterized in that if No.1 master
Break-make control module and No. two main break-make control modules are all in the demagnetization process in the case of conducting state, when T1 ＜ T2 if
In demagnetization, the main break-make control module of No.1 will first disconnect before No. two main break-make control modules disconnect；If conversely, T1 ＞ T2
In demagnetization, No. two main break-make control modules will first disconnect Shi Ze before the main break-make control module of No.1 disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711496798.3A CN108183642B (en) | 2017-12-31 | 2017-12-31 | 660MW supercritical unit voltage stabilization washing pipe analysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| JP2001103795A (en) * | 1999-10-01 | 2001-04-13 | Meidensha Corp | Stationary exciting device for synchronous generator |
| CN101783497A (en) * | 2010-01-27 | 2010-07-21 | 东方电气集团东方电机有限公司 | Multi-mode redundant field suppression protection loop |
| CN201690410U (en) * | 2010-06-03 | 2010-12-29 | 陕西航空电气有限责任公司 | Magnetic steel demagnetizer of permanent magnetic motor |
| CN203223404U (en) * | 2013-04-30 | 2013-10-02 | 马鞍山当涂发电有限公司 | Frequency converting control system of supercritical unit induced draft fan |
| CN205123404U (en) * | 2015-10-30 | 2016-03-30 | 郑州众智科技股份有限公司 | Three routes switching of power control system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001103795A (en) * | 1999-10-01 | 2001-04-13 | Meidensha Corp | Stationary exciting device for synchronous generator |
| CN101783497A (en) * | 2010-01-27 | 2010-07-21 | 东方电气集团东方电机有限公司 | Multi-mode redundant field suppression protection loop |
| CN201690410U (en) * | 2010-06-03 | 2010-12-29 | 陕西航空电气有限责任公司 | Magnetic steel demagnetizer of permanent magnetic motor |
| CN203223404U (en) * | 2013-04-30 | 2013-10-02 | 马鞍山当涂发电有限公司 | Frequency converting control system of supercritical unit induced draft fan |
| CN205123404U (en) * | 2015-10-30 | 2016-03-30 | 郑州众智科技股份有限公司 | Three routes switching of power control system |
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