CN206920562U - Test platform for the test of naval vessel AC circuit breaker protection feature - Google Patents
Test platform for the test of naval vessel AC circuit breaker protection feature Download PDFInfo
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- CN206920562U CN206920562U CN201720793428.5U CN201720793428U CN206920562U CN 206920562 U CN206920562 U CN 206920562U CN 201720793428 U CN201720793428 U CN 201720793428U CN 206920562 U CN206920562 U CN 206920562U
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Abstract
The utility model discloses a kind of test platform for the test of naval vessel AC circuit breaker protection feature; it includes eMEGAsim emulators; the D/A delivery outlets of eMEGAsim emulators and the input of power amplifier connect; the sampling input port of the output end of power amplifier and the sensing element of AC circuit breaker connects; the contact of the executive component of AC circuit breaker is connected with the input of switching value level signal converter, and the output end of switching value level signal converter is connected with the A/D input ports of eMEGAsim emulators.The utility model is simple in construction, it is cheap, can ensure that test safety.
Description
Technical field
The utility model belongs to naval vessel AC circuit breaker protective value technical field of measurement and test, and in particular to one kind is used for naval vessel
The test platform of AC circuit breaker protection feature test.
Background technology
Large surface warship AC network has annular power structure, load height is concentrated, source lotus electrical distance is short, failure
The features such as speed is fast is influenceed, thus it is more much higher than land power network to the reliability requirement of its relay protection performance.Naval vessel at present
The reliability of relay protection of power system design is substantially dependent on the nominal data of plan AC circuit breaker, but exchanges disconnected
Often there is certain difference in the nominal of road device performance, or even the actual performance of some AC circuit breakers peculiar to vessel far reaches between actual effect
Less than its nominal index.The important quality guarantee measures to be eliminated safe hidden trouble as shipboard power system, it is necessary to disconnected in exchange
Road device product is directed to its nominal performance before putting into operation and carries out actual effect inspection.Existing protective value test can be carried out to AC circuit breaker
Device it is not only complicated and expensive, certain danger be present.Therefore, we there is an urgent need to a kind of simple in construction, price
The cheap device that protective value test can be carried out to AC circuit breaker.
Utility model content
The purpose of this utility model is that providing a kind of naval vessel that is used for simple in construction, cheap, safe to use exchanges
The test platform of breaker protective property test.
Technical scheme is used by the utility model：
A kind of test platform for the test of naval vessel AC circuit breaker protection feature, including eMEGAsim emulators,
The D/A delivery outlets of eMEGAsim emulators and the input of power amplifier connect, and the output end of power amplifier is disconnected with exchanging
The sampling input port connection of the sensing element of road device, contact and the switching value level signal of the executive component of AC circuit breaker turn
The input connection of parallel operation, the output end of switching value level signal converter are connected with the A/D input ports of eMEGAsim emulators
（The contact of the executive component of breaker point/close signal by switching value level signal converter transform be high/low level signal with
The A/D input ports of eMEGAsim emulators, which are connected and input eMEGAsim digital simulators, forms 0/1 logic control variable）.
The digital simulation model established in eMEGAsim emulators is the naval vessel AC network including breaker model
Primary system equivalent-circuit model, the artificial variable of output is changed by D/A（Analog quantity）For breaker（Tested relay protection dress
Put）Required sampling quantity；The effect of power amplifier is voltage/current transformer in equivalent real system, and its input is suitable
In the primary side of transformer get access to grid primary system simulation model output artificial variable, two of its output end equivalent to transformer
Secondary side joint breaker（Tested protective relaying device is also referred to as test item）Sample port；The effect of switching value level signal converter
It is that the contact of breaker point/conjunction action signal is converted into high/low level signal, then input eMEGAsim is changed by A/D and imitated
Dividing/closing for 0/1 logical variable control breaker model is formed in true device.
By such scheme, the eMEGAsim emulators include generating set G1, generating set G2, generating set G3 and hair
Group of motors G4, D/A converter, A/D converter, generating set G1 output end are connected with air-break K1 one end, air
The breaker K1 other end one end with air-break K7, air-break K11 one end, the one of air-break K5 respectively
End connection；The air-break K7 other end is connected with air-break K8 one end, air-break the K8 other end and sky
Gas breaker K3 one end, air-break K6 one end connection, the air-break K3 other end are connected with generating set G3,
The one end of the air-break K11 other end respectively with load LD2, breaker of plastic casing S1 is connected, and breaker of plastic casing S1's is another
End is connected with load LD1；The air-break K5 other end one end with air-break K2, the one of air-break K9 respectively
End connection, the air-break K2 other end are connected with generating set G2, air-break the K9 other end and air-break
K10 one end connection, the air-break K10 other end respectively one end with air-break K4, air-break K6 it is another
One end is connected, and the air-break K4 other end is connected with generating set G4, and air-break K6 one end is broken with plastic housing respectively
Road device S2 one end, breaker of plastic casing S3 one end connection, the breaker of plastic casing S2 other end are connected with load LD3, and plastic housing is broken
Road device S3 one end is connected with load LD4；
Breaker of plastic casing S1 one end and the input port of D/A converter connect, and breaker of plastic casing the S1 other end and A/D turn
The delivery outlet connection of parallel operation.
By such scheme, the input of power amplifier is connected with the delivery outlet of the D/A converter of eMEGAsim emulators,
The output end of switching value level signal converter is connected with the input port of the A/D converter of eMEGAsim emulators.
By such scheme, switching value level signal converter includes optocoupler HCPL-2631, optocoupler HCPL-2631 output
End is connected with the input port of the A/D converter of eMEGAsim emulators, optocoupler HCPL-2631 first input end and alternating current interruption
The first contact connection of the executive component of device, optocoupler HCPL-2631 the second input perform member with AC circuit breaker respectively
One end connection of second contact of part, 200 Ω resistance, the other end of 200 Ω resistance are connected with the negative pole of 12V power supplys, 12V power supplys
Positive pole and the first contact of executive component of AC circuit breaker connect, the other ends of 200 Ω resistance ground connection.
By such scheme, the real-time operation step-length of eMEGAsim emulators is not more than 50 microseconds；EMEGAsim emulators
D/A converter, power amplifier, switching value level signal converter, eMEGAsim emulators A/D converter signal transmission
Accumulative delay is less than 30 microseconds.I.e. the intrinsic time error of test platform is a discrete steps of digital simulation model；
D/A conversions, the signal transmission of power amplifier of eMEGAsim emulators add up amplitude error no more than 0.2%, irregularity of wave form
No more than 0.5%.
By such scheme, the D/A converter of eMEGAsim emulators is using OP-DAQM-DA-16A types sixteen bit high accuracy
Converter, maximum delay are less than 3.5 microseconds；The A/D converter of eMEGAsim emulators is turned using HCPL-2631 types Phototube Coupling
Parallel operation, maximum delay are less than 0.2 microsecond；Power amplifier for equivalent virtual voltage/Current Transformer Secondary side is special
High-precise linear amplifier, electric current and voltage output are respectively less than 20 microseconds to the response maximum delay of input.
The utility model is simple in construction, easy to operation, and safety coefficient is high, and cost is low；The utility model have can try subject
More, testing efficiency is high and the advantages of safe operation is convenient.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the structured flowchart for the test platform that the utility model is used for the test of naval vessel AC circuit breaker protection feature；
Fig. 2 is the circuit theory diagrams of eMEGAsim emulators；
Fig. 3 is the circuit theory diagrams of switching value level signal converter；
Fig. 4 is the nominal protection feature of AC circuit breaker；
Fig. 5 is the short trouble snap action effect measured waveform figure of AC circuit breaker；
Fig. 6 is the short deferred action effect measured waveform figure of short trouble of AC circuit breaker；
Fig. 7 is the overload long delay action effect measured waveform figure of AC circuit breaker.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
Referring to Fig. 1-Fig. 3, a kind of test platform for the test of naval vessel AC circuit breaker protection feature, it includes
EMEGAsim emulators, eMEGAsim emulators include generating set G1, generating set G2, generating set G3 and generating set
G4, generating set G1 output end are connected with air-break K1 one end, the air-break K1 other end respectively with air
Breaker K7 one end, one end connection of air-break K11 one end, air-break K5；Air-break K7's is another
End is connected with air-break K8 one end, the air-break K8 other end and air-break K3 one end, air break
Device K6 one end connection, the air-break K3 other end are connected with generating set G3, air-break K11 other end difference
It is connected with load LD2, breaker of plastic casing S1 one end, the breaker of plastic casing S1 other end is connected with load LD1；Air-break
One end with air-break K2, air-break K9 one end are connected the K5 other end respectively, and air-break K2's is another
End is connected with generating set G2, and the air-break K9 other end is connected with air-break K10 one end, air-break
One end with air-break K4, the air-break K6 other end are connected the K10 other end respectively, and air-break K4's is another
One end is connected with generating set G4, air-break K6 one end one end with breaker of plastic casing S2, breaker of plastic casing S3 respectively
One end connection, the breaker of plastic casing S2 other end is connected with load LD3, and breaker of plastic casing S3 one end is connected with loading LD4；
Breaker of plastic casing S1 one end and the input port of D/A converter connect, the breaker of plastic casing S1 other end and A/D converter it is defeated
Outlet connection；The delivery outlet of the D/A converter of eMEGAsim emulators and the input of power amplifier connect, power amplifier
Output end and AC circuit breaker sensing element sampling input port connect, the contact of the executive component of AC circuit breaker with
The input connection of switching value level signal converter, output end and the eMEGAsim emulators of switching value level signal converter
A/D converter input port connection.
In the present embodiment, switching value level signal converter includes optocoupler HCPL-2631, optocoupler HCPL-2631 output
End is connected with the input port of the A/D converter of eMEGAsim emulators, optocoupler HCPL-2631 first input end and breaker
The first contact connection of executive component, optocoupler HCPL-2631 the second input respectively with the executive component of breaker second
One end connection of contact, 200 Ω resistance, the other end of 200 Ω resistance is connected with the negative pole of 12V power supplys, the positive pole of 12V power supplys and
The first contact connection of the executive component of breaker, the other end ground connection of 200 Ω resistance.
In the present embodiment, the real-time operation step-length of eMEGAsim emulators is not more than 50 microseconds；EMEGAsim emulators
D/A converter, power amplifier, switching value level signal converter, eMEGAsim emulators A/D converter signal transmission
Accumulative delay is less than 30 microseconds.
In the present embodiment, eMEGAsim emulators can simulate a variety of steady state operating conditions of shipboard power system and happen suddenly various
The whole transient of failure, i.e., flexibly establish different Digital Simulations for the different nominal characteristic parameter of tested AC circuit breaker
Model and the real Time Dynamic Simulation operation under the ring closure of tested breaker, closed-loop simulation experiment accuracy fully meet open circuit
Device wink is dynamic, the test request of short delay and long delay acting characteristic.
This test platform can simulate the full mistake of transient state of a variety of steady state operating conditions of shipboard power system and the various failures that happen suddenly
Journey, i.e., for AC circuit breaker（Tested breaker）Different nominal characteristic parameters flexibly establish different digital simulation models simultaneously
In AC circuit breaker（Tested breaker）Ring closure under real Time Dynamic Simulation run, experiment accuracy fully meet breaker
Wink is dynamic, the test request of short delay and long delay acting characteristic.
Examine the testing procedure of certain type breaker of plastic casing protection feature peculiar to vessel as follows：
Step 1: the joint test platform as shown in Fig. 1-Fig. 3, is AC circuit breaker by S1（Tested breaker）
Digital equivalent model in eMEGAsim emulators；Breaker of plastic casing S1 branch currents in eMEGAsim emulators（LD1 is loaded
Electric current）The voltage signal that artificial variable changes output through D/A connects the input of analog signalses power amplifier, analog quantity is believed
The current signal of number power amplifier output connects the sampling input of tested breaker of plastic casing, tested breaker of plastic casing auxiliary is touched
Point minute/conjunction state passes through the switching value level signal converter shown in Fig. 3（Interface circuit）It is converted into high/low level signal again
Input eMEGAsim emulators, which are changed, through A/D forms 0/1 logic control variable, control breaker of plastic casing S1 digital simulation models
Point/close；
Step 2: the AC circuit breaker as shown in accompanying drawing 4（Tested breaker）Nominal protection feature, emulated in eMEGAsim
The rated current for loading LD1 is arranged to Ir1=1.0In in device, and a parallel connection short circuit fault branch is set up at node N1
（Adjust the size that the big I of the branch impedance accurately adjusts breaker of plastic casing S1 fault simulation electric currents）；
Step 3: short trouble branch impedance at node N1 is adjusted in eMEGAsim emulators makes breaker of plastic casing S1's
Short circuit current is 12Ir1, and simulation short-circuit fault test draws the waveform of breaker of plastic casing S1 branch current fault transient overall processes
As shown in figure 5, the time t1 measured from waveform is the short trouble instantaneous protection actuation time of tested breaker；
Step 4: short trouble branch impedance at node N1 is adjusted in eMEGAsim emulators makes breaker of plastic casing S1's
Short circuit current is 7Ir1, and simulation short-circuit fault test draws the waveform of breaker of plastic casing S1 branch current fault transient overall processes such as
Shown in Fig. 6, the time t2 that is measured from waveform be tested breaker after short trouble short delay protection actuation time；
Step 5: short trouble branch impedance at node N1 is adjusted in eMEGAsim emulators makes breaker of plastic casing S1's
Overload current is 1.2Ir1, and simulation overload fault experiment draws the waveform of breaker of plastic casing S1 branch current fault transient overall processes
As shown in fig. 7, the time t3 measured from waveform is the overload fault long delay protection actuation time of tested breaker；
Step 6: in step 2, by the rated current for loading LD1 be respectively set to Ir1=0.9In, 0.8In, 0.7In,
0.6In, 0.5In, 0.4In, then three, four, five are respectively repeated steps for different Ir1, draw different rated current Ir1 wink
When, it is short delay, long delay protection acting characteristic, test result is compared with the nominal characteristic curve shown in Fig. 4, can both be examined
Whether the nominal protection feature for testing tested breaker of plastic casing is consistent with its actual efficiency.
The utility model avoids the security risk of existing test device, while utilizes the flexibility of Digital Simulation modeling again
The suitability of sum-mould closed loop interface equipment improves test efficiency and the standard that naval vessel AC circuit breaker nominal performance actual effect is examined
True property.The utility model is applied to the mark of air-break and breaker of plastic casing of the naval vessel AC network equipped with intelligent trip device
Protection feature actual effect is claimed to examine.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.
Claims (5)
- A kind of 1. test platform for the test of naval vessel AC circuit breaker protection feature, it is characterised in that：Imitated including eMEGAsim True device, the D/A delivery outlets of eMEGAsim emulators and the input of power amplifier connect, the output end of power amplifier and friendship The sampling input port connection of the sensing element of breaker is flowed, contact and the switching value level of the executive component of AC circuit breaker are believed The input connection of number converter, the output end of switching value level signal converter and the A/D input ports of eMEGAsim emulators Connection.
- 2. the test platform according to claim 1 for the test of naval vessel AC circuit breaker protection feature, it is characterised in that： The eMEGAsim emulators include generating set G1, generating set G2, generating set G3 and generating set G4, D/A converter, A/D converter, generating set G1 output end are connected with air-break K1 one end, air-break K1 other end difference One end, air-break K5 one end of one end, air-break K11 with air-break K7 are connected；Air-break K7 The other end be connected with air-break K8 one end, the air-break K8 other end and air-break K3 one end, sky Gas breaker K6 one end connection, the air-break K3 other end are connected with generating set G3, and air-break K11's is another The one end of end respectively with load LD2, breaker of plastic casing S1 is connected, and the breaker of plastic casing S1 other end is connected with load LD1；Air One end with air-break K2, air-break K9 one end are connected the breaker K5 other end respectively, air-break K2 The other end be connected with generating set G2, the air-break K9 other end is connected with air-break K10 one end, and air breaks One end with air-break K4, the air-break K6 other end are connected the road device K10 other end respectively, air-break K4 The other end be connected with generating set G4, one end with breaker of plastic casing S2, the plastic housing open circuit respectively of air-break K6 one end Device S3 one end connection, the breaker of plastic casing S2 other end are connected with load LD3, breaker of plastic casing S3 one end and load LD4 Connection；Breaker of plastic casing S1 one end and the input port of D/A converter connect, breaker of plastic casing the S1 other end and A/D converter Delivery outlet connection.
- 3. the test platform according to claim 2 for the test of naval vessel AC circuit breaker protection feature, it is characterised in that： The input of power amplifier is connected with the delivery outlet of the D/A converter of eMEGAsim emulators, the conversion of switching value level signal The output end of device is connected with the input port of the A/D converter of eMEGAsim emulators.
- 4. the test platform for being used for the test of naval vessel AC circuit breaker protection feature according to Claims 2 or 3, its feature exist In：Switching value level signal converter includes optocoupler HCPL-2631, and optocoupler HCPL-2631 output end and eMEGAsim are emulated The input port connection of the A/D converter of device, the of optocoupler HCPL-2631 first input end and the executive component of AC circuit breaker One contact connects, optocoupler HCPL-2631 the second input the second contact with the executive component of AC circuit breaker, 200 respectively One end connection of Ω resistance, the other end of 200 Ω resistance are connected with the negative pole of 12V power supplys, the positive pole and alternating current interruption of 12V power supplys The first contact connection of the executive component of device, the other end ground connection of 200 Ω resistance.
- 5. the test platform according to claim 1 for the test of naval vessel AC circuit breaker protection feature, its feature exists In：The real-time operation step-length of eMEGAsim emulators is not more than 50 microseconds；D/A converter, the power of eMEGAsim emulators are put To be less than 30 micro- for the accumulative delay of signal transmission of A/D converter of big device, switching value level signal converter, eMEGAsim emulators Second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720793428.5U CN206920562U (en) | 2017-07-03 | 2017-07-03 | Test platform for the test of naval vessel AC circuit breaker protection feature |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720793428.5U CN206920562U (en) | 2017-07-03 | 2017-07-03 | Test platform for the test of naval vessel AC circuit breaker protection feature |
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| CN206920562U true CN206920562U (en) | 2018-01-23 |
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| CN201720793428.5U Active CN206920562U (en) | 2017-07-03 | 2017-07-03 | Test platform for the test of naval vessel AC circuit breaker protection feature |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830404A (en) * | 2020-07-03 | 2020-10-27 | 中国人民解放军63602部队 | Multifunctional circuit breaker detection device and method |
| CN113295942A (en) * | 2021-04-23 | 2021-08-24 | 四川华能宝兴河水电有限责任公司 | Relay protection device constant value checking system and method |
-
2017
- 2017-07-03 CN CN201720793428.5U patent/CN206920562U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830404A (en) * | 2020-07-03 | 2020-10-27 | 中国人民解放军63602部队 | Multifunctional circuit breaker detection device and method |
| CN113295942A (en) * | 2021-04-23 | 2021-08-24 | 四川华能宝兴河水电有限责任公司 | Relay protection device constant value checking system and method |
| CN113295942B (en) * | 2021-04-23 | 2022-03-08 | 四川华能宝兴河水电有限责任公司 | Relay protection device constant value checking system and method |
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