CN206060229U - A kind of microcomputer automatic sub-synchronous device shutting-brake control system - Google Patents
A kind of microcomputer automatic sub-synchronous device shutting-brake control system Download PDFInfo
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- CN206060229U CN206060229U CN201621030864.9U CN201621030864U CN206060229U CN 206060229 U CN206060229 U CN 206060229U CN 201621030864 U CN201621030864 U CN 201621030864U CN 206060229 U CN206060229 U CN 206060229U
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- Prior art keywords
- automatic sub
- synchronous device
- microcomputer automatic
- synchronous
- voltage transformer
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Abstract
This utility model is related to electric system generator group or switchyard simultaneous interconnecting technical field, in particular to a kind of microcomputer automatic sub-synchronous device shutting-brake control system.The microcomputer automatic sub-synchronous device shutting-brake control system includes programmable logic controller (PLC), microcomputer automatic sub-synchronous device, system side voltage transformer, subject side voltage transformer, excitation, speed regulator and closing switch.The programmable logic controller (PLC) is electrically connected at the microcomputer automatic sub-synchronous device by first switch device, and the system side voltage transformer, subject side voltage transformer, excitation, speed regulator and closing switch are electrically connected with the microcomputer automatic sub-synchronous device.Microcomputer automatic sub-synchronous device shutting-brake control system described in the present embodiment reduces the probability that the microcomputer automatic sub-synchronous device is sent instructions by mistake with misoperation, makes the more safe and reliable of generating set or switchyard simultaneous interconnecting.
Description
Technical field
This utility model is related to electric system generator group or switchyard simultaneous interconnecting technical field, in particular to
A kind of microcomputer automatic sub-synchronous device shutting-brake control system.
Background technology
Microcomputer automatic sub-synchronous device is used for the grid-connected of generating set, when microcomputer automatic sub-synchronous device receives computer
After the asynchronous switch-on instruction that monitoring system is issued, microcomputer automatic sub-synchronous device passes through system side mains frequency, voltage magnitude, electricity
Pressure phase place and subject side mains frequency, voltage magnitude, the comparison of voltage-phase, to the given supercharging of excitation, pressure reduction pulse signal, give
Speed regulator gives speedup, deceleration pulse signal and is adjusted.When subject side mains frequency, voltage magnitude, voltage-phase and system
When side mains frequency, voltage magnitude, voltage-phase are adjusted in certain scope, synchronous device sends out closing pulse, generating set
Generate electricity by way of merging two or more grid systems.In work, (receive the instruction that computer supervisory control system issues is carried out existing microcomputer automatic sub-synchronous device
Voltage-regulation) or idle state under, be at electriferous state, increased microcomputer automatic sub-synchronous device and bristle with anger by mistake
Order and the probability of misoperation.
Utility model content
In view of this, the purpose of this utility model embodiment is, there is provided a kind of microcomputer automatic sub-synchronous device closes a floodgate and controls
System processed, to solve the above problems.
This utility model embodiment provides a kind of microcomputer automatic sub-synchronous device shutting-brake control system, and the microcomputer is automatic
Semi-synchronizing device shutting-brake control system includes programmable logic controller (PLC), microcomputer automatic sub-synchronous device, system side mutual induction of voltage
Device, subject side voltage transformer, excitation, speed regulator and closing switch；
The programmable logic controller (PLC) is electrically connected at the microcomputer automatic sub-synchronous device by first switch device,
The system side voltage transformer, subject side voltage transformer, excitation, speed regulator and closing switch are electrically connected with described
Microcomputer automatic sub-synchronous device.
Further, the first switch device be electrically connected at the microcomputer automatic sub-synchronous device power supply terminal and
Between the programmable logic controller (PLC).
Further, the microcomputer automatic sub-synchronous device includes synchronous device and synchronous meter；
The programmable logic controller (PLC) is electrically connected at the synchronous device, the system side by first switch device
Voltage transformer, subject side voltage transformer, excitation, speed regulator and closing switch are electrically connected with the synchronous device；
The programmable logic controller (PLC), system side voltage transformer, subject side voltage transformer, excitation, speed regulator and
Closing switch is electrically connected with the synchronous meter.
Further, the first switch device is electrically connected at the power supply terminal of the synchronous device and described programmable
Between logic controller.
Further, the first switch device is auxiliary reclay.
Further, the first switch device is catalyst.
Further, the microcomputer automatic sub-synchronous device shutting-brake control system also includes being electrically connected at described may be programmed
Second switch device between logic controller and microcomputer automatic sub-synchronous device, the system side voltage transformer and subject side
Voltage transformer is electrically connected at the microcomputer automatic sub-synchronous device by the second switch device respectively.
Further, the second switch device is auxiliary reclay.
Further, the second switch device is catalyst.
Further, the system side voltage transformer be electronic type voltage transformer, the subject side voltage transformer
For electronic type voltage transformer.
The microcomputer automatic sub-synchronous device shutting-brake control system that this utility model embodiment is provided, the FPGA control
First switch device is electrically connected between device processed and microcomputer automatic sub-synchronous device, the microcomputer automatic sub-synchronous device is controlled
Need electricity on operation, it is not necessary to operation power-off, sent instructions so as to reduce the microcomputer automatic sub-synchronous device by mistake
With the probability of misoperation, the more safe and reliable of generating set or switchyard simultaneous interconnecting is made.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to using needed for embodiment
Accompanying drawing be briefly described.It should be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
A kind of structured flowchart of microcomputer automatic sub-synchronous device shutting-brake control system that Fig. 1 is provided for this utility model.
The structured flowchart of another kind of microcomputer automatic sub-synchronous device shutting-brake control system that Fig. 2 is provided for this utility model.
A kind of partial circuit connection of microcomputer automatic sub-synchronous device shutting-brake control system that Fig. 3 is provided for this utility model
Graph of a relation.
Icon：100- programmable logic controller (PLC)s；200- microcomputer automatic sub-synchronous devices；210- synchronous devices；220- is same
Step table；300- system side voltage transformers；400- subject side voltage transformers；500- excitations；600- speed regulators；700- closes a floodgate and opens
Close；800- first switch devices；The first relays of 810-；The first relay auxiliary contacts of 811-；900- second switch devices；
The second relays of 910-；1000- throws voltage transformer contact.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe.Obviously, described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.The component of this utility model embodiment generally described and illustrated in accompanying drawing herein can be with a variety of configurations
To arrange and design.Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit
The claimed scope of the present utility model of system, but it is merely representative of selected embodiment of the present utility model.It is new based on this practicality
The embodiment of type, the every other embodiment obtained on the premise of creative work is not made by those skilled in the art,
Belong to the scope of this utility model protection.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then in subsequent accompanying drawing which further need not be defined and is explained.
Fig. 1 is referred to, this utility model embodiment provides a kind of microcomputer automatic sub-synchronous device shutting-brake control system, institute
Stating microcomputer automatic sub-synchronous device shutting-brake control system includes programmable logic controller (PLC) 100, microcomputer automatic sub-synchronous device
200th, system side voltage transformer 300, subject side voltage transformer 400, excitation 500, speed regulator 600 and closing switch 700.
It should be noted that in the present embodiment, the subject side voltage transformer 400 can be that side of generating set voltage is mutual
Sensor, or switchyard side voltage transformer.
It is automatically accurate same that the programmable logic controller (PLC) 100 is electrically connected at the microcomputer by first switch device 800
Phase device 200, the system side voltage transformer 300, subject side voltage transformer 400, excitation 500, speed regulator 600 and combined floodgate
Switch 700 is electrically connected with the microcomputer automatic sub-synchronous device 200.
In the present embodiment, the first switch device 800 is electrically connected at the electricity of the microcomputer automatic sub-synchronous device 200
Between source terminal and the programmable logic controller (PLC) 100.
In order to ensure the voltage of the voltage-phase and subject side of 200 pairs of system sides of the microcomputer automatic sub-synchronous device
The accuracy of the comparative result of phase place, alternatively the microcomputer automatic sub-synchronous device 200 include synchronous device 210 and synchronous meter
220。
The synchronous device 210 is a kind of instruction used when performing grid-connected during Operation of Electric Systems, monitoring, control
Device processed, it with the mains frequency of detecting system side and subject side, voltage magnitude, voltage-phase, and can judge the electricity of subject side
Whether net frequency, voltage magnitude, voltage-phase reach condition, to realize auto-parallel.And the synchronous meter 220 can detect and be
System side and the voltage-phase of subject side, and judge whether the voltage-phase of subject side reaches condition.In the present embodiment, the same period
Device 210 and synchronous meter 220 detect and judge whether the voltage-phase of subject side reaches condition simultaneously, improves testing result
Accuracy.
In the present embodiment, the programmable logic controller (PLC) 100 is electrically connected at described same by first switch device 800
Phase device 210, the system side voltage transformer 300, subject side voltage transformer 400, excitation 500, speed regulator 600 and combined floodgate
Switch 700 is electrically connected with the synchronous device 210.The programmable logic controller (PLC) 100, system side voltage transformer
300th, subject side voltage transformer 400, excitation 500, speed regulator 600 and closing switch 700 are electrically connected with the synchronization
Table 220.
Alternatively, the first switch device 800 be electrically connected at the synchronous device 210 power supply terminal and it is described can
Between programmed logic controller 100, so as to the operation for controlling the synchronous device 210 starts.In other words, this utility model is implemented
Microcomputer automatic sub-synchronous device shutting-brake control system described in example, when there is combined floodgate demand, by the first switch device 800
To electricity on the synchronous device 210, when combined floodgate is completed, the same first switch device 800 gives the synchronous device 210
Power-off.
By above-mentioned setting, when there is asynchronous switch-on demand, the programmable logic controller (PLC) 100 controls described first and opens
Close device 800 to close, make the power supply terminal of the synchronous device 210 obtain electric.In the present embodiment, due to the system side voltage it is mutual
Sensor 300 and subject side voltage transformer 400 are electrically connected at the microcomputer automatic sub-synchronous device 200, i.e., described system side
The signal of voltage transformer 300 and subject side voltage transformer 400 is to introduce the microcomputer automatic sub-synchronous device 200 all the time
, so, the power supply terminal of the synchronous device 210 obtain it is electric after, the synchronous device 210 can just be detected and judge subject side
Whether mains frequency, voltage magnitude, voltage-phase reach condition, to be ready for follow-up work.Thus, can reduce described micro-
The probability that machine automatic sub-synchronous device 200 is sent instructions by mistake with misoperation, makes the more peace of generating set or switchyard simultaneous interconnecting
It is complete reliable.
It should be noted that in the present embodiment, the first switch device 800 can be auxiliary reclay, or
Catalyst.
Auxiliary reclay is by the coil electricity or disconnected of PLC controls auxiliary reclay in the course of work
Electricity, the action of the auxiliary contact of auxiliary reclay, the auxiliary contact are connected in other control loops, by the auxiliary contact
Change cause control loop to change.For example, control loop on or off is caused by the change of the auxiliary contact,
So as to realize the purpose of set control or protection.In the present embodiment, the operation principle of the catalyst and the middle relay
Device is substantially the same.
It should be noted that in the present embodiment, the first switch device 800 can also be auxiliary reclay and catalyst
Other electronic devices and components in addition.
Fig. 2 is referred to, alternatively, the microcomputer automatic sub-synchronous device shutting-brake control system also includes being electrically connected at institute
State the second switch device 900 between programmable logic controller (PLC) 100 and microcomputer automatic sub-synchronous device 200, the system side
Voltage transformer 300 and subject side voltage transformer 400 are electrically connected at described micro- respectively by the second switch device 900
Machine automatic sub-synchronous device 200.
It should be noted that in the present embodiment, the second switch device 900 can be auxiliary reclay, or
Catalyst.
It should be noted that in the present embodiment, the second switch device 900 can also be auxiliary reclay and catalyst
Other electronic devices and components in addition.
To be passed through by the signal of above-mentioned setting, the system side voltage transformer 300 and subject side voltage transformer 400
The second switch device 900 introduces the microcomputer automatic sub-synchronous device 200, and the folding of the second switch device 900
Controlled by the programmable logic controller (PLC) 100, effectively strengthen the microcomputer automatic sub-synchronous device shutting-brake control system
Reliability.
Alternatively, the system side voltage transformer 300 is electronic type voltage transformer.Alternatively, the subject side electricity
Pressure transformer 400 is electronic type voltage transformer.
Electronic type voltage transformer has that excellent insulating property, low price, electromagnetism interference performance be good, step-down side is short-circuit
Without the overheated dangerous, linearity it is good, without saturated phenomenon, small volume, lightweight and save the premium properties such as space, it is adaptable to it is newest
The power system of digitized, Microcomputer.
In the course of work of the microcomputer automatic sub-synchronous device shutting-brake control system, when there is asynchronous switch-on demand,
The programmable logic controller (PLC) 100 controls the second switch device 900 and closes, from the system side voltage transformer 300
The system side voltage and subject side voltage introduced with subject side voltage transformer 400 is introduced by the second switch device 900
The microcomputer automatic sub-synchronous device 200.Additionally, controlling the second switch device in the programmable logic controller (PLC) 100
While 900 closure, the programmable logic controller (PLC) 100 controls the first switch device 800 and closes, and makes the same period dress
The power supply terminal for putting 210 obtains electric.The power supply terminal of the synchronous device 210 obtain it is electric after, the synchronous device 210 is detected and is judged
Whether the mains frequency of subject side, voltage magnitude, voltage-phase reach condition.At the same time, the excitation 500 and speed regulator
600 pairs of subject side voltages are adjusted, until the synchronous device 210 is detected and judges the mains frequency of subject side, voltage amplitude
Value, voltage-phase reach condition, send combined floodgate output order to the closing switch 700.
It should be noted that in the present embodiment, the closing switch 700 can be gate out switch, or chopper.
By above-mentioned setting, the microcomputer automatic sub-synchronous device shutting-brake control system described in this utility model embodiment only has
When the first switch device 800 and second switch device 900 are closed at, asynchronous switch-on order can be just responded, very
The probability that the microcomputer automatic sub-synchronous device 200 is sent instructions by mistake with misoperation is reduced in big degree, generating set or switch is made
Stand the more safe and reliable of simultaneous interconnecting.
Fig. 3 is referred to, in this utility model embodiment, the microcomputer automatic sub-synchronous device 200 shown in Fig. 1 and Fig. 2 includes
Synchronous device 210 and synchronous meter 220.In the specific implementation process of this utility model embodiment, alternatively, the synchronous device
210 is SID-2FY, and the synchronous meter 220 is SID-2SL-A.
Optionally, the first switch device 800 is auxiliary reclay, and the second switch device 900 is middle relay
Device.When the first switch device 800 is auxiliary reclay, and the second switch device 900 is auxiliary reclay, described the
One switching device 800 and second switch device 900 can be the auxiliary reclay of same model, or in different model
Between relay.In the present embodiment, the relay that the first switch device 800 is adopted is the first relay 810, and described second opens
The relay that pass device 900 is adopted is for the second relay 910.In the present embodiment, first relay 810 and the second relay
910 for same model auxiliary reclay, such as ZJY-800.
When there is combined floodgate demand, voltage transformer contact is thrown in the microcomputer automatic sub-synchronous device shutting-brake control system control
1000 and second relay 910 close, from system side voltage transformer 300 and subject side voltage transformer shown in Fig. 1 and Fig. 2
The 400 system side voltages introduced and subject side voltage enter the synchronous device 210 and synchronous meter 220.Meanwhile, the microcomputer is certainly
Dynamic semi-synchronizing device shutting-brake control system controls first relay 810 and obtains electric, so that the first relay auxiliary contact
811 closures, the power supply terminal of synchronous device 210 obtains electric, start the mains frequency of detecting system side and subject side, voltage magnitude,
Voltage-phase, and judge whether the mains frequency of subject side, voltage magnitude, voltage-phase reach condition, it is follow-up to be ready for
Work.
In sum, this utility model embodiment provide microcomputer automatic sub-synchronous device shutting-brake control system, it is described can
First switch device 800 is electrically connected between programmed logic controller 100 and microcomputer automatic sub-synchronous device 200, institute is controlled
Stating microcomputer automatic sub-synchronous device 200 needs electricity on operation, it is not necessary to operation power-off, so as to reduce the microcomputer
The probability that automatic sub-synchronous device 200 is sent instructions by mistake with misoperation, makes the safer of generating set or switchyard simultaneous interconnecting
It is reliable.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets
Put ", should be interpreted broadly " installation ", " connection ", for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection.Can be mechanically connected, or electrically connect.Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in this utility model.Additionally, term " first ", " second " etc. are only used for distinguishing description, and it is not understood that
To indicate or implying relative importance.
Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this
For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. are should be included within protection domain of the present utility model.
Claims (10)
1. a kind of microcomputer automatic sub-synchronous device shutting-brake control system, it is characterised in that the microcomputer automatic sub-synchronous device is closed
Lock control system includes programmable logic controller (PLC), microcomputer automatic sub-synchronous device, system side voltage transformer, subject side voltage
Transformer, excitation, speed regulator and closing switch；
The programmable logic controller (PLC) is electrically connected at the microcomputer automatic sub-synchronous device by first switch device, described
System side voltage transformer, subject side voltage transformer, excitation, speed regulator and closing switch are electrically connected with the microcomputer
Automatic sub-synchronous device.
2. microcomputer automatic sub-synchronous device shutting-brake control system according to claim 1, it is characterised in that described first opens
Close device to be electrically connected between the power supply terminal of the microcomputer automatic sub-synchronous device and the programmable logic controller (PLC).
3. microcomputer automatic sub-synchronous device shutting-brake control system according to claim 2, it is characterised in that the microcomputer from
Dynamic semi-synchronizing device includes synchronous device and synchronous meter；
The programmable logic controller (PLC) is electrically connected at the synchronous device, the system side voltage by first switch device
Transformer, subject side voltage transformer, excitation, speed regulator and closing switch are electrically connected with the synchronous device；
The programmable logic controller (PLC), system side voltage transformer, subject side voltage transformer, excitation, speed regulator and combined floodgate
Switch is electrically connected with the synchronous meter.
4. microcomputer automatic sub-synchronous device shutting-brake control system according to claim 3, it is characterised in that described first opens
Close device to be electrically connected between the power supply terminal of the synchronous device and the programmable logic controller (PLC).
5. microcomputer automatic sub-synchronous device shutting-brake control system according to claim 4, it is characterised in that described first opens
Pass device is auxiliary reclay.
6. microcomputer automatic sub-synchronous device shutting-brake control system according to claim 4, it is characterised in that described first opens
Pass device is catalyst.
7. microcomputer automatic sub-synchronous device shutting-brake control system according to claim 4, it is characterised in that the microcomputer from
Dynamic semi-synchronizing device shutting-brake control system also includes being electrically connected at the programmable logic controller (PLC) and microcomputer automatic sub-synchronous
Second switch device between device, the system side voltage transformer and subject side voltage transformer pass through described second respectively
Switching device is electrically connected at the microcomputer automatic sub-synchronous device.
8. microcomputer automatic sub-synchronous device shutting-brake control system according to claim 7, it is characterised in that described second opens
Pass device is auxiliary reclay.
9. microcomputer automatic sub-synchronous device shutting-brake control system according to claim 7, it is characterised in that described second opens
Pass device is catalyst.
10. microcomputer automatic sub-synchronous device shutting-brake control system according to claim 1, it is characterised in that the system
Side voltage transformer is electronic type voltage transformer, and the subject side voltage transformer is electronic type voltage transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621030864.9U CN206060229U (en) | 2016-08-31 | 2016-08-31 | A kind of microcomputer automatic sub-synchronous device shutting-brake control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621030864.9U CN206060229U (en) | 2016-08-31 | 2016-08-31 | A kind of microcomputer automatic sub-synchronous device shutting-brake control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206060229U true CN206060229U (en) | 2017-03-29 |
Family
ID=58374766
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621030864.9U Expired - Fee Related CN206060229U (en) | 2016-08-31 | 2016-08-31 | A kind of microcomputer automatic sub-synchronous device shutting-brake control system |
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| CN (1) | CN206060229U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861221A (en) * | 2019-03-25 | 2019-06-07 | 岭澳核电有限公司 | One kind being based on the transmission system and its electric power distribution of 3/2nds modes of connection |
| CN109921471A (en) * | 2019-02-26 | 2019-06-21 | 南方电网调峰调频发电有限公司 | A kind of multiple synchronization paralleling System and method for of generating set |
| CN113359021A (en) * | 2021-06-23 | 2021-09-07 | 深圳市锦祥自动化设备有限公司 | Static synchronous check relay and high-precision phase difference and amplitude difference judgment system |
-
2016
- 2016-08-31 CN CN201621030864.9U patent/CN206060229U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921471A (en) * | 2019-02-26 | 2019-06-21 | 南方电网调峰调频发电有限公司 | A kind of multiple synchronization paralleling System and method for of generating set |
| CN109861221A (en) * | 2019-03-25 | 2019-06-07 | 岭澳核电有限公司 | One kind being based on the transmission system and its electric power distribution of 3/2nds modes of connection |
| CN113359021A (en) * | 2021-06-23 | 2021-09-07 | 深圳市锦祥自动化设备有限公司 | Static synchronous check relay and high-precision phase difference and amplitude difference judgment system |
| CN113359021B (en) * | 2021-06-23 | 2022-10-21 | 深圳市锦祥自动化设备有限公司 | Static synchronous check relay and high-precision phase difference and amplitude difference judgment system |
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