CN109802369A - A kind of atomic-powered ship intermediate voltage electric power system - Google Patents
A kind of atomic-powered ship intermediate voltage electric power system Download PDFInfo
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- CN109802369A CN109802369A CN201910066478.7A CN201910066478A CN109802369A CN 109802369 A CN109802369 A CN 109802369A CN 201910066478 A CN201910066478 A CN 201910066478A CN 109802369 A CN109802369 A CN 109802369A
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Abstract
The present invention provides a kind of atomic-powered ship intermediate voltage electric power system; the electric system includes pressure bus in generator, secondary circuit and platform, pressure bus, arc light acquisition device and arc light protecting device in primary Ioops; wherein the first arc photosensor, the second arc photosensor and third arc photosensor are used to acquisition arc optical signal, send arc light acquisition device for arc optical signal；Arc light acquisition device is used to for arc optical signal data being sent to arc light protecting device, and the first current transformer is sent to arc light protecting device for acquiring inlet wire current；Arc light protecting device is used to carry out logical operation to arc optical signal data and inlet wire current, according to logical operation as a result, sending corresponding control signal to first switch and/or third switch.The present invention collects failure optical signal by arc photosensor, carries out logical operation by failure optical signal and inlet wire current, the route of failure is cut off, and it is stable, at high cost to solve the problems, such as that the prior art influences system.
Description
Technical field
The present invention relates to technical field of nuclear power more particularly to a kind of atomic-powered ship intermediate voltage electric power systems.
Background technique
In the electric system of nuclear power generation ship, there are several frequently seen solution, a kind of mode for protecting electrical power system
Be using threshold currents protection of prescribing a time limit as bus main protection, when bus accessories malfunctions, protection act there are certain time-delay, for
The bigger occasion of fault current may cause to seriously affect to equipment and system stability；Another way is due to ship
Electric system parallel operation of generator and the case where off-the-line frequent occurrence, electric network composition can be varied widely with the difference of operating condition,
Need to guarantee the damage for putting into one day resonance grounding device in each electrical isolated island to protect system from overvoltage, resonance
Earthing or grounding means proposes requirements at the higher level to Ship Power Station space and cost, simultaneously as more earthing or grounding means between different units
It needs to communicate with each other, conflict to avoid in capacitance measurement and parameter tuning etc., need to configure reliable communication mode and lead to
Road, the harmonic wave of ship equipment influence also inevitable to communication device.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of atomic-powered ship intermediate voltage electric power system.
A kind of atomic-powered ship intermediate voltage electric power system provided by the invention, the electric system include generator, secondary circuit
And bus is pressed in platform, presses bus, arc light acquisition device and arc light protecting device in primary Ioops, in which:
It is pressed in generator to secondary circuit and platform and is provided with first switch cabinet on the inlet wire of bus, set in the first switch cabinet
It is equipped with first switch and the first current transformer, the first switch and first current transformer, which are sequentially connected in series, to be arranged in institute
It states generator to press into secondary circuit and platform on the inlet wire of bus, is provided with the first arc photosensor in the first switch cabinet；
It presses bus to be pressed on the bus contact line of bus into primary Ioops in secondary circuit and platform and is provided with second switch cabinet, it is described
Second switch is provided in second switch cabinet, the second switch, which is arranged in the secondary circuit and platform, presses bus to primary Ioops
On the bus contact line of middle pressure bus, the second arc photosensor is provided in the second switch cabinet；
It is pressed in secondary circuit and platform on bus to feeder line line and is provided with third switchgear, be provided in the third switchgear
Third switch, the third switch, which is arranged in secondary circuit and platform, presses on bus to feeder line line, in the third switchgear
It is provided with third arc photosensor；
First arc photosensor, second arc photosensor and the third arc photosensor and arc light acquisition fill
It sets and is provided with signal wire, first arc photosensor, second arc photosensor and the third arc photosensor are equal
For acquiring arc optical signal, arc light acquisition device is sent by the arc optical signal；
The arc light protecting device is connect with the arc light acquisition device by optical fiber, first current transformer and the arc
Optical acquisition device is connected by signal wire, and the arc light acquisition device is used to being converted to arc optical signal into arc optical signal data and send
To arc light protecting device, first current transformer is for acquiring the inlet wire that generator presses bus into secondary circuit and platform
Inlet wire current, the inlet wire current is sent to arc light protecting device；
The arc light protecting device is used for the arc optical signal data and the inlet wire current logical operation, according to the logic
Operation sends corresponding control signal as a result, switching to first switch and/or third.
Further, the resistance earthing ground connection of transformer of the generator neutral point through secondary side connecting resistance.
Further, the electric system further includes protection equipment for generator, and the protection equipment for generator first end connects
The second current transformer that generator neutral point is set is connect, the protection equipment for generator second end connection is arranged in generator
The voltage transformer of output end, protection equipment for generator third end connect first switch；
The protection equipment for generator, in the phase-to phase fault of generator unit stator winding and lead-out wire, configuration engine to be poor
Dynamic protection is main protection；
Overcurrent protection is arranged when for pressing busbar short-circuit in generator or secondary circuit and platform in the protection equipment for generator.
Further, the electric system further includes incoming relay-protection device, the incoming relay-protection device connection described first
Switchgear, the incoming relay-protection device are used for overcurrent protection and voltage monitoring with delay.
Further, it is provided with third current transformer and the 4th current transformer on the bus contact line, described
Differential protection is set between third current transformer and the 4th current transformer, and the differential protection is for controlling
The 4th switch between third current transformer and the 4th current transformer is set on bus contact line.
The invention has the following beneficial effects:
When the present invention acquires failure using arc photosensor sensitivity, rapidly the characteristics of arc light, arc optical signal when by acquiring failure,
Logical operation is carried out by arc optical signal and inlet wire current, judges whether route really breaks down, for the line of failure
Road is cut off, and since arc optical signal acquisition speed is fast, thus route is cut off fastly, and do not influence system and stablize, cost
Also very economical.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the architecture diagram of atomic-powered ship intermediate voltage electric power system provided in an embodiment of the present invention.
Specific embodiment
This patent core content is, when promptly acquiring failure arc light sensitive using arc photosensor, while acquiring inlet wire
Electric current avoids the occurrence of erroneous judgement, is described further below in conjunction with drawings and examples to the system specific embodiment.
The embodiment of atomic-powered ship intermediate voltage electric power system provided by the invention is described more fully below.
As shown in Figure 1, the embodiment of the present invention provides a kind of atomic-powered ship intermediate voltage electric power system, the protection system includes
Bus 12 is pressed in generator 11, secondary circuit and platform, bus 13, arc light acquisition device 14 and arc light protecting device are pressed in primary Ioops
15, in which:
It is pressed in generator 11 to secondary circuit and platform and is provided with first switch cabinet 16, first switch cabinet 16 on the inlet wire of bus 12
It is inside provided with first switch 161 and the first current transformer 162, first switch 161 and the first current transformer 162 are sequentially connected in series
Generator 11 is arranged in press into secondary circuit and platform on the inlet wire of bus 12, the first arc light biography is provided in first switch cabinet 16
Sensor；
It should be noted that the first arc photosensor, " first " in the second arc photosensor, " second " in the embodiment of the present invention
It being used only for identifying, is not used to representative sequence, the first arc photosensor includes arc photosensor 163 and arc photosensor 164,
Similarly the second arc photosensor also includes arc photosensor 171 and 172, and third arc photosensor includes 181 He of arc photosensor
Two arc photosensors are arranged in arc photosensor 182 in a switchgear, and main purpose is in order to avoid an arc light sensor
Device setting angles and positions cause to omit failure arc light, and for failover backup.
It presses bus 12 to press into primary Ioops in secondary circuit and platform to be provided with second on the bus contact line of bus 13 and open
Cabinet 17 is closed, second switch 173 is provided in the second switch cabinet 17, the setting of second switch 173 is pressed in secondary circuit and platform
Bus 12 is pressed into primary Ioops on the bus contact line of bus 13, is provided with the second arc light sensor in the second switch cabinet 17
Device；
It is pressed in secondary circuit and platform and is provided with third switchgear 18 on bus 12 to feeder line line, setting in third switchgear 18
There is third switch 183, third switch 183, which is arranged in secondary circuit and platform, presses on bus 12 to feeder line line, and the third is opened
It closes in cabinet 18 and is provided with third arc photosensor；
First arc photosensor, the second arc photosensor and third arc photosensor and arc light acquisition device 14 are provided with signal
Line, first arc photosensor, second arc photosensor and the third arc photosensor are used to acquisition arc light letter
Number, arc light acquisition device is sent by the arc optical signal；
It should be noted that unit unit different in arc light acquisition device corresponds to different switchgears, arc light acquisition device is received
When to arc optical signal, arc optical signal can be distinguished from that switchgear.
Arc light protecting device 14 is connect with arc light acquisition device 15 by optical fiber, and the first current transformer 162 is adopted with arc light
Acquisition means 15 are connected by signal wire, and arc light acquisition device 15 is sent to arc for arc optical signal to be converted to arc optical signal data
Light protective device 14, the first current transformer 162 is for acquiring the inlet wire that generator 11 presses bus 12 into secondary circuit and platform
On inlet wire current, the inlet wire current is sent to arc light protecting device 14；
It should be noted that optical fiber is mainly used for discovery circuit exception for transmitting arc optical signal data, acquisition arc optical signal
Electric discharge, but shine the case where arc photosensor will appear erroneous judgement for using up and have no idea to avoid, it is therefore desirable to electricity
Current transformer acquires inlet wire current auxiliary judgment, and erroneous judgement is avoided to lead to switch mis-jumping.
Arc light protecting device 14 is used to patrol the arc optical signal data and the inlet wire current logical operation according to described
That collects operation sends corresponding control signal as a result, switching to first switch and/or third.
Specifically, when the first arc photosensor collects arc optical signal, and inlet wire current is more than preset threshold, then arc light
Protective device 14 sends the control signal of cutting first switch 173 to first switch 173；When third arc photosensor collects arc
When optical signal, and inlet wire current is more than preset threshold, then arc light protecting device 14 sends cutting third switch to first switch 183
183 control signal；When the first arc photosensor or third arc photosensor is any collect arc optical signal when, or both
When collecting arc optical signal, but inlet wire current is normal and is less than preset threshold, then may determine that arc optical signal may be it
Caused by his factor, arc light protecting device 14 will not send shutoff signal to first switch 173 or third switch 183.
Further, the resistance earthing ground connection of transformer of 11 neutral point of generator through secondary side connecting resistance.
It should be noted that configure 90% stator ground fault protection to the Stator ground fault of generator 11, play to stator around
The function of group ground fault alarm and protection.
Further, the electric system further includes protection equipment for generator 22, the first end of protection equipment for generator 22
The second current transformer 20 of 11 neutral point of generator is arranged in connection, and the connection setting of 22 second end of protection equipment for generator is being sent out
The voltage transformer 21 of 11 output end of motor, the 22 third end of protection equipment for generator connect first switch 161；
Protection equipment for generator 22, in the phase-to phase fault of generator unit stator winding and lead-out wire, configuration engine to be differential
Protection is main protection；
Overcurrent protection is arranged when for pressing busbar short-circuit in generator or secondary circuit and platform in protection equipment for generator 22.
Further, the electric system further includes incoming relay-protection device 23, and incoming relay-protection device 23 connects first switch
Cabinet 16, incoming relay-protection device 23 are used for overcurrent protection and voltage monitoring with delay.
Further, it is provided with third current transformer 24 and the 4th current transformer 25 on the bus contact line,
Differential protection 26 is set between third current transformer 24 and the 4th current transformer 25, and the differential protection is for controlling
Set up the 4th switch 271 set on bus contact line between third current transformer 24 and the 4th current transformer 25.
When the present invention acquires failure using arc photosensor sensitivity, rapidly the characteristics of arc light, arc light when passing through acquisition failure
Signal carries out logical operation by arc optical signal and inlet wire current, judges whether route really breaks down, for breaking down
Route cut off, since arc optical signal acquisition speed is fast, thus route is cut off fast, and does not influence system and stablize,
Cost is also very economical.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (5)
1. a kind of atomic-powered ship intermediate voltage electric power system, which is characterized in that the electric system includes generator, secondary circuit and puts down
Bus is pressed in platform, bus, arc light acquisition device and arc light protecting device are pressed in primary Ioops, in which:
It is pressed in generator to secondary circuit and platform and is provided with first switch cabinet on the inlet wire of bus, set in the first switch cabinet
It is equipped with first switch and the first current transformer, the first switch and first current transformer, which are sequentially connected in series, to be arranged in institute
It states generator to press into secondary circuit and platform on the inlet wire of bus, is provided with the first arc photosensor in the first switch cabinet；
It presses bus to be pressed on the bus contact line of bus into primary Ioops in secondary circuit and platform and is provided with second switch cabinet, it is described
Second switch is provided in second switch cabinet, the second switch, which is arranged in the secondary circuit and platform, presses bus to primary Ioops
On the bus contact line of middle pressure bus, the second arc photosensor is provided in the second switch cabinet；
It is pressed in secondary circuit and platform on bus to feeder line line and is provided with third switchgear, be provided in the third switchgear
Third switch, the third switch, which is arranged in secondary circuit and platform, presses on bus to feeder line line, in the third switchgear
It is provided with third arc photosensor；
First arc photosensor, second arc photosensor and the third arc photosensor and arc light acquisition fill
It sets and is provided with signal wire, first arc photosensor, second arc photosensor and the third arc photosensor are equal
For acquiring arc optical signal, arc light acquisition device is sent by the arc optical signal；
The arc light protecting device is connect with the arc light acquisition device by optical fiber, first current transformer and the arc
Optical acquisition device is connected by signal wire, and the arc light acquisition device is used to being converted to arc optical signal into arc optical signal data and send
To arc light protecting device, first current transformer is for acquiring the inlet wire that generator presses bus into secondary circuit and platform
Inlet wire current, the inlet wire current is sent to arc light protecting device；
The arc light protecting device is used for the arc optical signal data and the inlet wire current logical operation, according to the logic
Operation sends corresponding control signal as a result, switching to first switch and/or third.
2. electric system as described in claim 1, which is characterized in that change of the generator neutral point through secondary side connecting resistance
The resistance earthing of depressor is grounded.
3. electric system as claimed in claim 2, which is characterized in that the electric system further includes protection equipment for generator,
The second current transformer of generator neutral point, the generator protection is arranged in the protection equipment for generator first end connection
Device second end connects the voltage transformer that generator output end is arranged in, protection equipment for generator third end connection first
Switch；
The protection equipment for generator, in the phase-to phase fault of generator unit stator winding and lead-out wire, configuration engine to be poor
Dynamic protection is main protection；
Overcurrent protection is arranged when for pressing busbar short-circuit in generator or secondary circuit and platform in the protection equipment for generator.
4. electric system as described in claim 1, which is characterized in that the electric system further includes incoming relay-protection device, institute
It states incoming relay-protection device and connects the first switch cabinet, the incoming relay-protection device is used for the overcurrent protection with delay and voltage prison
It surveys.
5. electric system as described in claim 1, which is characterized in that be provided with third Current Mutual Inductance on the bus contact line
Device and the 4th current transformer are arranged differential protection between the third current transformer and the 4th current transformer and fill
Set, the differential protection for control be arranged on bus contact line third current transformer and the 4th current transformer it
Between the 4th switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066478.7A CN109802369A (en) | 2019-01-24 | 2019-01-24 | A kind of atomic-powered ship intermediate voltage electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910066478.7A CN109802369A (en) | 2019-01-24 | 2019-01-24 | A kind of atomic-powered ship intermediate voltage electric power system |
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| Publication Number | Publication Date |
|---|---|
| CN109802369A true CN109802369A (en) | 2019-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910066478.7A Pending CN109802369A (en) | 2019-01-24 | 2019-01-24 | A kind of atomic-powered ship intermediate voltage electric power system |
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| Country | Link |
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| CN (1) | CN109802369A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248017A (en) * | 2013-05-15 | 2013-08-14 | 南京弘毅电气自动化有限公司 | 100-percent fast protection system and method for internal fault of switch cabinet |
-
2019
- 2019-01-24 CN CN201910066478.7A patent/CN109802369A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248017A (en) * | 2013-05-15 | 2013-08-14 | 南京弘毅电气自动化有限公司 | 100-percent fast protection system and method for internal fault of switch cabinet |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190524 |
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| RJ01 | Rejection of invention patent application after publication |