CN209200679U - A kind of synchronized detection device based on communication function for breaker - Google Patents
A kind of synchronized detection device based on communication function for breaker Download PDFInfo
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- CN209200679U CN209200679U CN201821826754.2U CN201821826754U CN209200679U CN 209200679 U CN209200679 U CN 209200679U CN 201821826754 U CN201821826754 U CN 201821826754U CN 209200679 U CN209200679 U CN 209200679U
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- breaker
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Abstract
The utility model discloses a kind of synchronized detection devices based on communication function for breaker, information of voltage is simultaneously sent to synchronization device by communication mode (including wired and communication) by breaker sampling side voltage signal, synchronization device need to only sample other side voltage signal, and judge whether two sides voltage meets same period condition, to realize grid-connected function.Whole process reduces data acquisition processing circuit all the way, reduces cost, easy-to-connect.
Description
Technical field
The utility model belongs to breaker technical field, be specifically exactly be related to it is a kind of for breaker based on communication function
The synchronized detection device of energy.
Background technique
With social development, the degree of automation is higher and higher, and power-off causes some losses very big, needs simultaneously net operation field
Conjunction is very more, therefore more and more breakers are integrated with synchronization function.In distribution system operational process, the combined floodgate of breaker is grasped
It is frequently necessary to realize by synchronization function, it is arranged side by side in the system being electrically not in contact with realization two that is, different
AC power source and net operation.There is pressure difference, frequency difference and differences in the system of breaker two sides, due to the presence of frequency difference, institute
It is in a dynamic variation with the phase difference between system two sides, therefore needs to meet the requirements in voltage, pressure difference and difference on the frequency
Under the premise of, judge to complete breaker switching-on operation when phase difference is met the requirements, to realize grid-connected function.
Chinese patent 201420833103.1 discloses a kind of breaker with asynchronous switch-on function, including intelligent tripping
Device and same period module, intelligent electrical apparatus release connect and are in communication with each other with same period module, and intelligent electrical apparatus release is same to same period module transfer
Given threshold required for phase operates, same period module receives and detects the voltage signal of breaker two sides, when breaker two sides
Voltage signal issues reclosing command when meeting given threshold.By built-in same period module, the same of distribution system not only can satisfy
Phase operation, also eliminates the measurement of leading time；Same period module and intelligent electrical apparatus release communicate to connect, from intelligent electrical apparatus release to the same period
Given threshold required for module transfer synchronous operation, when carrying out synchronous operation, same period module can be independently of intelligent electrical apparatus release
Handle the voltage signal of breaker two sides.Same period module in the breaker acquires main circuit power as circuit breaker accessory simultaneously
Side and standby electricity Source side voltage are required with judging whether to meet the same period (phase sequence, voltage, frequency and phase are equal).But it is breaking
Device also needs sampled voltage signal, same voltage signal double sampling, wiring trouble, sampling functions repetition, increasing due to functional requirement
Production cost is added.
Utility model content
The purpose of this utility model needs double sampling aiming at the identical voltage of above-mentioned existing breaker synchronized detection
The technical issues of, a kind of synchronized detection device based on communication function for breaker is provided, breaker samples side voltage
Data are sent to synchronization device by communication mode (including wired and communication), and synchronization device need to only sample other one
Side voltage, and judge whether two sides voltage meets same period condition, to realize grid-connected function.Whole process reduces a data and adopts
Collect processing circuit, reduces cost；Extra wiring is eliminated simultaneously.
Technical solution
In order to achieve the above technical purposes, it is provided by the utility model it is a kind of for breaker based on the same of communication function
Phase detection device, it is characterised in that: it includes Acquisition Circuit, shaping circuit, data transmission interface and closing locking relay, institute
The output end for stating Acquisition Circuit is connected with shaping circuit and by collected non-breaker side voltage signal input shaper circuit
To realize that voltage signal is converted to square wave by sine wave, the Acquisition Circuit output end is also connect with synchronization device MCU, described whole
The square wave output end of shape circuit is connect with synchronization device MCU, and the closing locking relay is connected with the synchronization device MCU,
The data transmission interface of the synchronization device MCU is connected with breaker data coffret.
A kind of synchronized detection device based on communication function for breaker provided by the utility model, the skill having
Art advantage: breaker samples side voltage signal and passes through communication mode (including wired and communication) for voltage data
It is sent to synchronization device, synchronization device need to only sample other side voltage, and judge whether two sides voltage meets same period condition, with
Realize grid-connected function.Whole process reduces signal acquisition processing circuit all the way, and reduces cost, while reducing wiring.
Detailed description of the invention
Fig. 1 is the grid-connected schematic diagram of the utility model embodiment.
Fig. 2 is breaker voltage sample schematic diagram in the utility model embodiment.
Fig. 3 is synchronization device voltage sample schematic diagram in the utility model embodiment.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in further details.
A kind of one embodiment provided by the utility model: synchronized detection side based on communication function for breaker
Method, it including the following steps:
The first step, breaker send configuration parameter to synchronization device by communication mode, and the parameter of the configuration is voltage
Difference, difference on the frequency and phase difference etc..
Second step, measurement module sample main circuit power side voltage signal, and voltage effective value one and frequency is then calculated
Rate value one.
Third step, synchronization device sample standby electricity source voltage signal, voltage effective value two and frequency are then calculated
Value two, and by the voltage effective value one and frequency values one of communication mode acquisition breaker side, voltage effective value one subtracts voltage
Virtual value two obtains voltage difference, and frequency values one subtract frequency values two and obtain difference on the frequency.
4th step, the voltage signal time one and obtained by wired or wireless communication mode that synchronization device is captured by own side
The breaker side time two taken, time one subtract the time two and obtain the time difference, the time difference multiplied by frequency two, then multiplied by 360
Obtain two sides voltage signal phase difference.
5th step, synchronization device judge two sides voltage signal whether meet the voltage difference set in the first step, difference on the frequency and
The parameters such as phase difference drive closing locking relay to be closed if meeting, and if being unsatisfactory for, continue to status work.
The present embodiment also provides a kind of synchronized detection device based on communication function for breaker, it is characterised in that:
It includes Acquisition Circuit 1, shaping circuit 2, data transmission interface 3 and closing locking relay 4, the output of the Acquisition Circuit 1
End is connected and by collected non-breaker side voltage signal input shaper circuit 2 to realize voltage signal with shaping circuit 2
Square wave is converted to by sine wave, 1 output end of Acquisition Circuit is also connect with synchronization device MCU5, the side of the shaping circuit 2
Wave output terminal is connect with synchronization device MCU5, and the closing locking relay 4 is connected with the synchronization device MCU5, the same period
The data transmission interface 3 of device MCU5 is connected with breaker data coffret.
As shown in Figure 1, breaker and synchronization device include data transfer communications circuit, voltage differential Acquisition Circuit and whole
Shape circuit.Fig. 2 and Fig. 3 show breaker and synchronization device realizes grid-connected functional schematic.The specific works mistake of the present embodiment
Cheng Yuanli is: difference Acquisition Circuit realizes voltage U1 and the transformation of voltage U2 signal, filtering, and via AD sample conversion, is computed
Obtain voltage effective value；Shaping circuit realizes that sine wave is converted to square wave, and square wave rising edge triggers MCU external interrupt, by rising
Along the time difference and then obtain frequency values, such breaker and each side voltage effective value of device acquisition and frequency values, breaker pass through
Data transmission link sends breaker side voltage effective value and frequency values to synchronization device, and such synchronization device can be obtained by electricity
Pressure difference and frequency difference.Two sides phase difference is to realize difficult point, and synchronization device is recorded at this time in square wave rising edge by timer
Time, breaker actively inform that synchronization device, synchronization device receive by data transmission link in the interruption of square wave rising edge
Data simultaneously record the time, obtain two sides voltage phase difference by timer time differential conversion, need to carry out phase effect in practical application
It tests, constant error need to be subtracted.It can determine whether to meet grid-connected conditions according to phase difference, voltage difference and difference on the frequency in this way.Meet simultaneously
When net, synchronization device drives relay closure.
Claims (1)
1. a kind of synchronized detection device based on communication function for breaker, it is characterised in that: it includes Acquisition Circuit
(1), shaping circuit (2), data transmission interface (3) and closing locking relay (4), the output end of the Acquisition Circuit (1) with
Shaping circuit (2) is connected and by collected non-breaker side voltage signal input shaper circuit (2) to realize voltage signal
Square wave is converted to by sine wave, Acquisition Circuit (1) output end is also connect with synchronization device MCU (5), the shaping circuit
(2) square wave output end is connect with synchronization device MCU (5), the closing locking relay (4) and the synchronization device MCU (5)
Connection, the data transmission interface (3) of the synchronization device MCU (5) are connected with breaker data coffret.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821826754.2U CN209200679U (en) | 2018-11-06 | 2018-11-06 | A kind of synchronized detection device based on communication function for breaker |
| PCT/CN2019/102975 WO2020093762A1 (en) | 2018-11-06 | 2019-08-28 | Communication function-based synchronization detection method and device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821826754.2U CN209200679U (en) | 2018-11-06 | 2018-11-06 | A kind of synchronized detection device based on communication function for breaker |
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| Publication Number | Publication Date |
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| CN209200679U true CN209200679U (en) | 2019-08-02 |
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| CN201821826754.2U Active CN209200679U (en) | 2018-11-06 | 2018-11-06 | A kind of synchronized detection device based on communication function for breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020093762A1 (en) * | 2018-11-06 | 2020-05-14 | 上海良信电器股份有限公司 | Communication function-based synchronization detection method and device for circuit breaker |
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2018
- 2018-11-06 CN CN201821826754.2U patent/CN209200679U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020093762A1 (en) * | 2018-11-06 | 2020-05-14 | 上海良信电器股份有限公司 | Communication function-based synchronization detection method and device for circuit breaker |
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