CN105974247B - The test system and method for conducting slip ring - Google Patents

The test system and method for conducting slip ring Download PDF

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Publication number
CN105974247B
CN105974247B CN201610581294.0A CN201610581294A CN105974247B CN 105974247 B CN105974247 B CN 105974247B CN 201610581294 A CN201610581294 A CN 201610581294A CN 105974247 B CN105974247 B CN 105974247B
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CN
China
Prior art keywords
slip ring
conducting slip
communication
test
current transformer
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CN201610581294.0A
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Chinese (zh)
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CN105974247A (en
Inventor
胡俊杰
张大鹏
曹思阳
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北京金风科创风电设备有限公司
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Priority to CN201610581294.0A priority Critical patent/CN105974247B/en
Publication of CN105974247A publication Critical patent/CN105974247A/en
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Publication of CN105974247B publication Critical patent/CN105974247B/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00Thermometers specially adapted for specific purposes

Abstract

The present invention provides a kind of test system and method for conducting slip ring, and the stator of the stator of the first conducting slip ring and the second conducting slip ring is both connected on platform, and the rotor of two conducting slip rings is oppositely arranged and is connected by connector;The rotor of one conducting slip ring is driven by driving motor to be rotated, and the rotor of another conducting slip ring follows synchronous rotary;Driving motor is located on platform;The input terminal of current transformer connects power grid, and the output end of current transformer connects the stator of the first conducting slip ring, connected by electrical connecting wires between the rotor of two conducting slip rings, and the stator of the second conducting slip ring connects power grid;Inverter controller output pulse width modulated signal control current transformer exports different test electric currents and is loaded to the first conducting slip ring and the second conducting slip ring respectively;Test equipment tests the temperature of the first conducting slip ring and the second conducting slip ring in different test current loads and rises data and communication quality data.Whole system consumption electric energy is seldom, can be that powerful conducting slip ring be tested for the property.

Description

The test system and method for conducting slip ring
Technical field
The present invention relates to equipment technical field of measurement and test more particularly to a kind of test system and methods of conducting slip ring.
Background technology
Conducting slip ring on Wind turbines is the critical component of pitch control mechanism and generator in Wind turbines, in wind turbine The function that control signal and electric energy transmission are played under rotation status is the control signal and electric current for realizing two relative rotation mechanisms The power transmitting device of transmission can provide control signal for wind turbine, can also export the electric energy of wind turbine, be the core of entire wind turbine Component.
With the development of wind generating technology, the power of Wind turbines is also increasing, the power of wind power pitch-controlled system Increase therewith.The electric energy used in impeller is required for being transmitted by conducting slip ring, and therefore, the capacity of conducting slip ring is also more next It is bigger.In order to ensure the safety of running of wind generating set, needed to conducting slip ring during conducting slip ring design or type selecting It carries out band and carries verification.
In the prior art, it is all the mode for using energy expenditure to be loaded generally for small-sized conducting slip ring, still, right Continue that using the load mode of energy expenditure huge energy, the volume of load and calorific value can be consumed in high power conductive slip ring It is huge.
Therefore, those skilled in the art need to provide a kind of test system and method for conducting slip ring, can be to high-power Conducting slip ring is tested for the property, and will not consume huge energy.
Invention content
In order to solve the above technical problem of the existing technology, the present invention provides a kind of test system of conducting slip ring, It can realize the performance test to small-power and high power conductive slip ring, and huge energy will not be consumed, save the energy.
The embodiment of the present invention provides a kind of test system of conducting slip ring, is used for while testing two conducting slip rings;This is System includes:Current transformer, inverter controller, platform and test equipment;
Described two conducting slip rings are respectively:First conducting slip ring and the second conducting slip ring;
The stator of first conducting slip ring and the stator of the second conducting slip ring are all connected on the platform, and described first The rotor of the rotor of conducting slip ring and the second conducting slip ring is oppositely arranged and is linked together by connector;
The rotor of one of conducting slip ring is driven by driving motor to be rotated, and the rotor of another conducting slip ring is with companion Step rotation;The driving motor is located on the platform;
The input terminal of the current transformer connects power grid, and the output end of the current transformer connects the stator of the first conducting slip ring, It is connected by electrical connecting wires between the rotor of first conducting slip ring and the rotor of second conducting slip ring, described second leads The stator of electric slip ring connects the power grid, so that electric energy feedback gives the power grid;
The inverter controller controls the current transformer for output pulse width modulated signal and exports different tests respectively Electric current is loaded to first conducting slip ring and the second conducting slip ring;
The test equipment, for testing first conducting slip ring and the second conducting slip ring in the different test electricity Temperature when stream load rises data and communication quality data.
Preferably, the test equipment includes:Processor, first group of temperature sensing being arranged inside the first conducting slip ring Device and second group of temperature sensor being arranged inside the second conducting slip ring;
The processor, the temperature for acquiring first group of temperature sensor obtain the temperature of first conducting slip ring Rise data;And the temperature of acquisition second group of temperature sensor obtains the temperature liter data of second conducting slip ring.
Preferably, the test equipment further includes:Communication main station and at least following two communication slave stations:First communication slave station With the second communication slave station
The communication main station by the first communication line by first conducting slip ring with described first communicate slave station into Row connection;
The communication main station by the second communication line by second conducting slip ring with described second communicate slave station into Row connection;
The communication main station, for sending control instruction to the communication slave station;
The communication slave station, for being responded to the control instruction;
The processor, for testing the communication on the signal of communication and the second communication line on first communication line Signal, and communication quality data and second conducting slip ring by obtaining the first conducting slip ring to the analysis of the signal of communication Communication quality data.
Preferably, the current transformer includes:Rectifier and inverter;
The input terminal of the rectifier connects the power grid;
The output end of the rectifier connects the input terminal of the inverter;
The output end of the inverter connects the stator of first conducting slip ring.
Preferably, the current transformer further includes:Boost circuit, filter capacitor and filter;
The input terminal of the Boost circuit connects the output end of the rectifier;
The filter capacitor is connected in parallel on the output end of the Boost circuit;
The output end of the Boost circuit connects the input terminal of the inverter;
The output end of the inverter connects the filter;
The output end of the filter connects the stator of first conducting slip ring.
Preferably, further include:Isolating transformer;
The isolating transformer is connected between the power grid and current transformer;
The armature winding and secondary windings of the isolating transformer use angle-star connection type.
Preferably, further include:Main breaker, current transformer rectification side breaker and current transformer outlet side breaker;
One end of the main breaker connects the power grid, and the other end of the main breaker connects the isolating transformer Input terminal;
One end of the current transformer rectification side breaker connects the output end of the transformer, and the current transformer rectification side is disconnected The other end of road device connects the input terminal of the current transformer;
One end of the current transformer outlet side breaker connects the output end of the inverter, and the inverter outlet side is disconnected The other end of road device connects the stator of first conducting slip ring.
The embodiment of the present invention also provides a kind of test method of conducting slip ring, is carried out to conducting slip ring using the system Test, including:
Current transformer, which is controlled, by inverter controller exports the different test electric currents that conducting slip ring needs;
The rotor of a conducting slip ring is driven to rotate using the driving motor;
It acquires first conducting slip ring and the second conducting slip ring and rises number in different temperature when testing current load According to and communication quality data;
Data are risen to the temperature and communication quality data is analyzed, obtain the test result of conducting slip ring.
Preferably, it acquires first conducting slip ring and rises data in different temperature when testing current load, specifically For:
Capture setting obtains the first conducting slip ring in the temperature of first group of temperature sensor of first conducting slip ring Temperature rises data;
It acquires second conducting slip ring and rises data in different temperature when testing current load, specially:
Capture setting obtains the second conducting slip ring in the temperature of second group of temperature sensor of second conducting slip ring Temperature rises data.
Preferably, acquisition first conducting slip ring is in different communication quality number when testing current load According to specially:
Acquisition communication main station communicates the signal of communication on the first communication line between slave station with first;First communication Circuit passes through first conducting slip ring;
Acquire second conducting slip ring in different communication quality data when testing current load, specially:
Acquisition communication main station communicates the signal of communication on direct second communication line of slave station with second;Second communication Circuit passes through second conducting slip ring;
The communication main station is used to send control instruction to the communication slave station, and the communication slave station is used for the control Instruction responds.
Compared with prior art, the present invention has at least the following advantages:
Electric current is provided for conducting slip ring by current transformer, conducting slip ring is again by current feedback to power grid, whole system consumption Electric energy it is seldom, so as to be tested for the property for powerful conducting slip ring.In addition, inverter controller can control change Stream device exports different test electric currents, to emulate conducting slip ring real work scene, conducting slip ring is made to realize in different electric currents Performance test when load.And the rotor of two conducting slip rings is linked together by connector, can be realized simultaneously pair The performance test of two conducting slip rings.The design and type selecting of conducting slip ring can be instructed according to the result of performance test.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments described in application, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is one schematic diagram of test system embodiment of conducting slip ring provided by the invention;
Fig. 2 a are two schematic diagram of test system embodiment of conducting slip ring provided by the invention;
Fig. 2 b are the internal structure schematic diagram of current transformer provided by the invention;
Fig. 3 is the schematic diagram of testing conductive slip ring communication quality provided by the invention;
Fig. 4 is the flow chart of conducting slip ring test method provided by the invention;
Fig. 5 is conducting slip ring load test schematic diagram provided by the invention.
Drawing reference numeral explanation:
100- current transformers;200- inverter controllers;300- platforms;400- test equipments;First conducting slip ring -501;The Two conducting slip rings -502;301- connectors;302- driving motors;303- electrical connecting wires;401- processors;402- communication main stations; 403- first communicates slave station;404- second communicates slave station;405- third communication slave stations;101- rectifiers;102- inverters;103- Filter;104-Boost booster circuits;105- discharge resistances;106- pre-charge circuits;K1- main breakers;K2- current transformers are whole Flow side breaker;K3- current transformer outlet side breakers.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only this Invention a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art exist The every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
System embodiment one:
Referring to Fig. 1, which is one schematic diagram of test system embodiment of conducting slip ring provided by the invention.
The test system of conducting slip ring provided in this embodiment is used for while testing two conducting slip rings;The system includes: Current transformer 100, inverter controller 200, platform 300 and test equipment 400;
Two conducting slip rings are respectively:First conducting slip ring 501 and the second conducting slip ring 502;
The stator of the stator of first conducting slip ring 501 and the second conducting slip ring 502 is both connected on platform, and first is conductive sliding The rotor of the rotor of ring 501 and the second conducting slip ring 502 is oppositely arranged and is linked together by connector;
The rotor of one of conducting slip ring is driven by driving motor 302 to be rotated, the rotor of another conducting slip ring with With synchronous rotary;Driving motor 302 is located on platform 300;
It should be noted that driving motor 302 can drive conducting slip ring to rotate, rotating speed can meet 0- conducting slip rings Rated speed.Performance when can carry out dynamic load under the conditions of every speed by adjusting rotating speed simulation conducting slip ring.
The input terminal of current transformer 100 connects power grid, and the output end of current transformer 100 connects the stator of the first conducting slip ring 501, It is connected by electrical connecting wires between the rotor of first conducting slip ring 501 and the rotor of the second conducting slip ring 502, the second conducting slip ring 502 stator connects power grid, so that electric energy feedback is to power grid;Whole system forms the circulation of a closed loop.
It is understood that the test system can simultaneously be tested for the property two conducting slip rings, for test Agility, while the model for two conducting slip rings tested is preferably identical.
From figure 1 it appears that conducting slip ring only as the part in supply access, does not consume many energy Electric energy is fed back to power grid by amount, entire supply access again, and power grid is only the electric energy that all parts provide consumption, and there is no hinder The property a large amount of electric energy of load consumption, therefore the electric energy of the test system consumption is seldom, is easy to provide larger test to conducting slip ring Electric current.
Inverter controller 200 exports different test electricity for output pulse width modulated signal control current transformer 100 respectively It flows to the first conducting slip ring 501 and the load of the second conducting slip ring 502;
It is understood that inverter controller 200 can accurately be controlled by adjusting the pulse-width signal PWM of output The electric current of current transformer output processed, which can simulate different test electric currents and different higher harmonic components, to imitative True electric power disturbed test.
Test equipment 400, for testing the first conducting slip ring 501 and the second conducting slip ring 502 in different test electric currents Temperature when load rises data and communication quality data.
System provided in this embodiment provides electric current by current transformer for conducting slip ring, and conducting slip ring is again by current feedback Electric energy to power grid, whole system consumption is seldom.In addition, inverter controller, which can control current transformer, exports different test electricity Stream makes conducting slip ring realize the performance test in different current loads to emulate conducting slip ring real work scene.And The rotor of two conducting slip rings is linked together by connector, can be realized simultaneously and the performance of two conducting slip rings is surveyed Examination.The design and type selecting of conducting slip ring can be instructed according to the result of performance test.
System embodiment two:
Referring to Fig. 2 a, which is two schematic diagram of test system embodiment of conducting slip ring provided by the invention.
Test system provided in this embodiment, wherein test equipment includes:Processor 401 is arranged in the first conducting slip ring First group of internal temperature sensor (not shown) and second group of temperature sensor being arranged inside the second conducting slip ring (not shown);
Pass through between the rotor and the rotor of the second conducting slip ring 502 that can be seen that the first conducting slip ring 501 in Fig. 2 a Connector 301 links together, and platform 300 is equipped with driving motor 302.
Processor 401, the temperature that the temperature for acquiring first group of temperature sensor obtains the first conducting slip ring rise data;Also The temperature that temperature for acquiring second group of temperature sensor obtains the second conducting slip ring rises data.
It is understood that conducting slip ring includes multiple channels, the heat resistance in different channels can be measured, it specifically can be with Temperature sensor is set in the key position of measurement as needed, multiple temperature sensors can be arranged in a conducting slip ring, this The embodiment of number in to(for) temperature sensor is not specifically limited.
It should be noted that the test data of the first conducting slip ring and the second conducting slip ring is individually handled, example If the temperature of first group of temperature sensor measurement can characterize the heat resistance of the first conducting slip ring, second group of temperature sensor is surveyed The temperature of amount can characterize the heat resistance of the second conducting slip ring.
When measuring temperature, temperature of the conducting slip ring in different rotating speeds, different loading currents can be specifically measured.
In addition, not only needing to test its heat resistance to the test of conducting slip ring, it is also necessary to its communication quality is tested, because This, test equipment provided in this embodiment further includes:Communication main station 402 and at least following two communication slave stations:First communication from It stands and second communicates slave station;
It is understood that each conducting slip ring needs a corresponding communication main station and at least one communication slave station that could survey Try the communication quality of conducting slip ring.
Communication main station 402 communicates slave station with first by the first conducting slip ring 501 by the first communication line and is attached;
Communication main station 402 communicates slave station with second by the second conducting slip ring 502 by the second communication line and is attached;
Communication main station 402, for sending control instruction to each communication slave station;
Slave station is communicated, for being responded to control instruction;
Processor 401, for testing the signal of communication on signal of communication and the second communication line on the first communication line, And the communication quality by obtaining the communication quality data and the second conducting slip ring of the first conducting slip ring to the analysis of signal of communication Data.
It is understood that the first conducting slip ring and the second conducting slip ring can share a communication main station, can also divide Independent communication main station is not corresponded to.
The wherein schematic diagram of communication main station and communication slave station may refer to Fig. 3, which is conducting slip ring provided by the invention Communication test circuit diagram.
Since the test of each conducting slip ring is identical, Fig. 3 is only introduced by taking the first conducting slip ring 501 as an example, the The test of two conducting slip rings is identical, and details are not described herein.
Communication line in the present embodiment in a conducting slip ring is the communication that a communication main station communicates slave station with three Circuit.It is understood that conducting slip ring has many channels, and if to measure the communication quality in each channel, each channel It is intended to by a communication line, therefore, it is necessary to corresponding communication slave stations.I.e. a conducting slip ring needs the communication measured logical Road number is identical as corresponding communication slave station number needs.
Fig. 3 includes a communication main station 402 and three communication slave stations, and the respectively first communication slave station 403, second communicates Slave station 404 and third communication slave station 405.
From figure 3, it can be seen that communication main station 402 is communicated with first, slave station 403, second communicates slave station 404 and third is logical Communication line between believer in a certain religion station 405 passes through the first conducting slip ring 501, and the first conducting slip ring 501 serves as the effect of conducting wire.When One conducting slip ring 501 generates signal interference in loading current, will necessarily influence communication main station and communicate the communication between slave station Signal, therefore, by detection signal of communication it may determine that the communication quality in 501 each channel of the first conducting slip ring.
Communication main station has bus control right, reads the input information of communication slave station periodically and periodically to communication slave station Output information is sent, communication slave station is only made related response or response to communication main station, the data of collection, state etc. sent to logical The instruction that letter main website and execution communication main station are sent.
It can specifically be captured by the waveform to signal of communication it should be noted that processor 401 detects communication quality, and The communication failure occurred in communication line is analyzed by Protocol Analysis, data packet analysis etc..
It should be noted that as shown in Figure 2 a, current transformer 100 includes:Rectifier 101 and inverter 102;
The input terminal of rectifier 101 connects power grid;The power grid is three-phase AC grid, such as 380V power grids.Three-phase is distinguished For L1, L2 and L3.
The input terminal of the output end connection inverter 102 of rectifier 101;
The output end of inverter 102 connects the stator of the first conducting slip ring 501.
Inverter controller 200 can control inverter 102 and export different electric currents, including harmonic current, output To conducting slip ring.It is understood that inverter controller 200 exports different PWM to control each switch in inverter 102 The break-make of pipe, and then the electric current of the output of inverter 102 can be controlled.
Current transformer provided in this embodiment is using the mapping mode of exchange AC- direct currents DC- exchanges AC, the friendship that power grid is provided Galvanic electricity source is rectified into direct current by three-phase bridge rectifier, then it is filtered again by the inverter inversion of three phase inverter bridge be with The alternating current that network voltage, frequency match feeds back to power grid.
In addition, the current transformer further includes:Filter capacitor C and filter 103;
Filter capacitor C is used to filter out the interference signal in 101 output signal of rectifier.
Filter 103 is used to filter out the interference signal in 102 output signal of inverter.
Wherein, as shown in Figure 2 a, the filter that filter 103 can be made of capacitance and inductance.
With continued reference to Fig. 2 a, in addition, this system can also include:Isolating transformer T1;
Isolating transformer T1 is connected between power grid and current transformer 100;
The armature winding and secondary windings of isolating transformer T1 uses angle-star connection type.
It is understood that current transformer can be isolated with power grid by isolating transformer T1, and using angle-star connection Mode can inhibit the influence of higher hamonic wave.The capacity of T1 can be selected according to the capacity of current transformer, it should meet current transformer The requirement of peak power output.
With continued reference to Fig. 2 a, test system provided in this embodiment further includes:Main breaker K1, current transformer rectification side are disconnected Road device K2 and current transformer outlet side breaker K3;K1 is the power switch of entire test loop, and the capacity of K1 will meet entire survey Try the energy expenditure in circuit, and there are certain capacity, when test loop breaks down can disengagement failure electric current, protection equipment and Personal safety.K2, K3 capacity should preferably meet the maximum carrying capacity of tested slip ring, in the case where overcurrent occurs in test loop The safety of cut-off loop protection slip ring and test equipment.
One end of main breaker K1 connects power grid, the input terminal of the other end connection isolating transformer T1 of main breaker K1;
The output end of one end connection transformer T1 of current transformer rectification side breaker K2, current transformer rectification side breaker K2's The other end connects the input terminal of current transformer 100;
The output end of one end connection inverter of current transformer outlet side breaker K3, current transformer outlet side breaker K3's is another One end connects the stator of the first conducting slip ring 501.
When actual test, specific operating process is as follows:
1, it is closed K1.
2, it is closed K3, current transformer control circuit is powered.
3, it is closed K2 after the completion of current transformer self-test.
4, the parameters such as harmonic components sent out according to slip ring load test demand setting output current of converter and current transformer, Start current transformer.
5, driving motor rotating speed is set according to slip ring load test demand, starts driving motor.
6, start test equipment acquisition slip ring internal temperature, communication line tests number by the communication quality etc. after slip ring According to.
7, experimental data processing is analyzed, by being noted to the slip ring temperature data and power path that are acquired under the conditions of different loads Signal of communication is analyzed by the processing of the data such as the communication quality of slip ring after entering different harmonic conditions, is commented slip ring performance Valence.
Test system provided in this embodiment forms loop using current transformer and conducting slip ring, is different from traditional resistive The test mode of load consumption energy.This system can provide larger test electric current under low consumption for conducting slip ring.Meet The test request of high power conductive slip ring.And inverter controller can accurately adjust loading current, entire test loop letter It is single reliable.
In addition, in Fig. 2 a 303 for the first conducting slip ring 501 rotor and the rotor of the second conducting slip ring 502 between Electrical connecting wires.Single line is power line in 303, is used for transmission the electric current in circuit;Another single line is signal wire, is used for communication quality Test;The rotor of the rotor and the second conducting slip ring of the first conducting slip ring is connected by this two electric wirings.It can be with from Fig. 2 a Find out, the power supply of power grid is by transformer T1, current transformer 100, the first conducting slip ring 501, the second conducting slip ring 502, and feedback To power grid, the circulation of a closed loop is formed.Test loop i.e. provided in this embodiment connects power grid, the test that test loop generates Electric current returns to the input terminal of current transformer again, and therefore, the power supply of the test loop only needs to provide each device in test loop The energy of the electric energy consumed, consumption is less, easy tos produce larger test electric current, be suitble to high power conductive slip ring into Row load test.The test loop solves the larger technical problem of energy expenditure in the prior art.
In addition, as shown in Figure 2 b, current transformer is in addition to rectifier 101, inverter 102, filter 103 and the filter including more than Other than wave capacitance C, can also include:Boost circuit 104;
The output end of the input terminal connection rectifier 101 of Boost circuit 104;
Filter capacitor C is connected in parallel on the output end of Boost circuit 104;
The input terminal of the output end connection inverter 102 of Boost circuit 104;
It should be noted that current transformer provided in this embodiment have soft start, overvoltage/under-voltage protection, overcurrent protection, Cross/underfrequency protection, overload protection, operating parameter show functions such as (voltage, electric current, output powers).
In addition, current transformer 100 can also include the discharge resistance 105 used in start-up course and pre-charge circuit 106.
Current transformer 100 can also include liquid crystal control panels (not shown), and unsteady flow is adjusted by liquid crystal control panels The parameters such as output current value, active power, the reactive power of device.
Test system based on a kind of conducting slip ring that above example provides, the embodiment of the present invention also provide a kind of conduction The test method of slip ring, is described in detail below in conjunction with the accompanying drawings.
Referring to Fig. 4, which is the test method flow chart of conducting slip ring provided by the invention.
The test method of conducting slip ring provided in this embodiment surveys conducting slip ring using the system of above example Examination, including:
S401:Current transformer, which is controlled, by inverter controller exports the different test electric currents that conducting slip ring needs;
It is understood that the electric current of current transformer output can be controlled by the PWM that inverter controller exports.In this way Can accurate simulation conducting slip ring real work scene when electric current.
S402:The rotor of a conducting slip ring is driven to rotate using driving motor, the rotating speed of rotor is 0- conducting slip rings Rated speed;
Since the rotor of two conducting slip rings links together, synchronous rotary may be implemented in two conducting slip rings.And And rotating speed can be adjusted, and then rotation operating mode when simulation conducting slip ring real work scene.
S403:Acquire the temperature of the first conducting slip ring and the second conducting slip ring in different test current load rise data and Communication quality data;
It acquires temperature of first conducting slip ring in different test current loads and rises data, specially:
Capture setting obtains the Wen Sheng of the first conducting slip ring in the temperature of first group of temperature sensor of the first conducting slip ring Data;
It acquires temperature of second conducting slip ring in different test current loads and rises data, specially:
Capture setting obtains the Wen Sheng of the second conducting slip ring in the temperature of second group of temperature sensor of the second conducting slip ring Data.
Communication quality data of first conducting slip ring in different test current loads is acquired, specially:
Acquisition communication main station communicates the signal of communication on the first communication line between slave station with first;First communication line Pass through the first conducting slip ring;
Communication quality data of second conducting slip ring in different test current loads is acquired, specially:
Acquisition communication main station communicates the signal of communication on the second communication line between slave station with second;Second communication line Pass through the second conducting slip ring;
Communication main station is used to send control instruction to communication slave station, and communication slave station is for responding control instruction.
S404:Data are risen to temperature and communication quality data is analyzed, obtain the test result of conducting slip ring.
Method provided in this embodiment provides electric current by current transformer for conducting slip ring, and conducting slip ring is again by current feedback Electric energy to power grid, whole system consumption is seldom.In addition, inverter controller, which can control current transformer, exports different test electricity Stream makes conducting slip ring realize the performance test in different current loads to emulate conducting slip ring real work scene.And The rotor of two conducting slip rings is linked together by connector, can be realized simultaneously and the performance of two conducting slip rings is surveyed Examination.The design and type selecting of conducting slip ring can be instructed according to the result of performance test.
Based on the above-mentioned test method loaded to slip ring, slip ring load test can execute in difference conducting slip ring The communication quality test under the conditions of temperature rises test, different loads, the communication under different electrical power harmonic condition are carried out under loading condition Quality test, slip ring overload measurement etc..Slip ring is monitored in various experimental conditions by temperature collecting module and communication test set Under Wen Sheng and communication quality, slip ring performance is evaluated, for slip ring type selecting, optimization provide data support.
In addition, referring to Fig. 5, which is conducting slip ring load test schematic diagram provided by the invention.
From figure 5 it can be seen that may be implemented to conducting slip ring in different loads using test system provided by the invention Under the conditions of temperature rise test, the communication quality test under the conditions of different loads, the communication quality under the various harmonic contents of power supply is surveyed The overload measurement of examination and conducting slip ring.It, can be to conducting slip ring by the analysis of the above test data to conducting slip ring Design optimizes, and has good directive significance.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Though So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention.It is any to be familiar with those skilled in the art Member, without departing from the scope of the technical proposal of the invention, all using the methods and technical content of the disclosure above to the present invention Technical solution makes many possible changes and modifications, or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every without departing from The content of technical solution of the present invention, according to the technical essence of the invention any simple modification made to the above embodiment, equivalent Variation and modification, still fall within technical solution of the present invention protection in the range of.

Claims (10)

1. a kind of test system of conducting slip ring, which is characterized in that be used for while testing two conducting slip rings;The system includes: Current transformer, inverter controller, platform and test equipment;
Described two conducting slip rings are respectively:First conducting slip ring and the second conducting slip ring;
The stator of first conducting slip ring and the stator of the second conducting slip ring are all connected on the platform, and described first is conductive The rotor of the rotor of slip ring and the second conducting slip ring is oppositely arranged and is linked together by connector;
The rotor of one of conducting slip ring is driven by driving motor to be rotated, and the rotor of another conducting slip ring follows synchronous rotation Turn;The driving motor is located on the platform;
The input terminal of the current transformer connects power grid, and the output end of the current transformer connects the stator of the first conducting slip ring, described It is connected by electrical connecting wires between the rotor of first conducting slip ring and the rotor of second conducting slip ring, described second is conductive sliding The stator of ring connects the power grid, so that electric energy feedback gives the power grid;
The inverter controller controls the current transformer for output pulse width modulated signal and exports different test electric currents respectively It is loaded to first conducting slip ring and the second conducting slip ring;
The test equipment adds for testing first conducting slip ring and the second conducting slip ring in the different test electric current Temperature when load rises data and communication quality data.
2. the test system of conducting slip ring according to claim 1, which is characterized in that the test equipment includes:Processing Device, first group of temperature sensor being arranged inside the first conducting slip ring and second group of temperature being arranged inside the second conducting slip ring Spend sensor;
The processor, the temperature that the temperature for acquiring first group of temperature sensor obtains first conducting slip ring rise number According to;And the temperature of acquisition second group of temperature sensor obtains the temperature liter data of second conducting slip ring.
3. the test system of conducting slip ring according to claim 2, which is characterized in that the test equipment further includes:It is logical Believe main website and at least following two communication slave stations:First communication slave station and the second communication slave station;
The communication main station communicates slave station with described first by first conducting slip ring by the first communication line and is connected It connects;
The communication main station communicates slave station with described second by second conducting slip ring by the second communication line and is connected It connects;
The communication main station, for sending control instruction to the communication slave station;
The communication slave station, for being responded to the control instruction;
The processor, for testing the letter of the communication on the signal of communication and the second communication line on first communication line Number, and by obtaining the communication quality data of the first conducting slip ring and leading to for the second conducting slip ring to the analysis of the signal of communication Believe qualitative data.
4. according to the test system of claim 1-3 any one of them conducting slip rings, which is characterized in that the current transformer packet It includes:Rectifier and inverter;
The input terminal of the rectifier connects the power grid;
The output end of the rectifier connects the input terminal of the inverter;
The output end of the inverter connects the stator of first conducting slip ring.
5. the test system of conducting slip ring according to claim 4, which is characterized in that the current transformer further includes:Boost Booster circuit, filter capacitor and filter;
The input terminal of the Boost circuit connects the output end of the rectifier;
The filter capacitor is connected in parallel on the output end of the Boost circuit;
The output end of the Boost circuit connects the input terminal of the inverter;
The output end of the inverter connects the filter;
The output end of the filter connects the stator of first conducting slip ring.
6. the test system of conducting slip ring according to claim 4, which is characterized in that further include:Isolating transformer;
The isolating transformer is connected between the power grid and current transformer;
The armature winding and secondary windings of the isolating transformer use angle-star connection type.
7. the test system of conducting slip ring according to claim 6, which is characterized in that further include:Main breaker, current transformer Rectification side breaker and current transformer outlet side breaker;
One end of the main breaker connects the power grid, and the other end of the main breaker connects the defeated of the isolating transformer Enter end;
One end of the current transformer rectification side breaker connects the output end of the transformer, the current transformer rectification side breaker The other end connect the input terminal of the current transformer;
One end of the current transformer outlet side breaker connects the output end of the inverter, the inverter outlet side breaker The other end connect the stator of first conducting slip ring.
8. a kind of test method of conducting slip ring, which is characterized in that using claim 1-7 any one of them systems to conduction Slip ring is tested, including:
Current transformer, which is controlled, by inverter controller exports the different test electric currents that conducting slip ring needs;
The rotor of a conducting slip ring is driven to rotate using the driving motor;
Acquire the temperature of first conducting slip ring and the second conducting slip ring in the different test current load rise data and Communication quality data;
Data are risen to the temperature and communication quality data is analyzed, obtain the test result of conducting slip ring.
9. the test method of conducting slip ring according to claim 8, which is characterized in that acquisition first conducting slip ring exists Different temperature when testing current load rises data, specially:
Capture setting obtains the Wen Sheng of the first conducting slip ring in the temperature of first group of temperature sensor of first conducting slip ring Data;
It acquires second conducting slip ring and rises data in different temperature when testing current load, specially:
Capture setting obtains the Wen Sheng of the second conducting slip ring in the temperature of second group of temperature sensor of second conducting slip ring Data.
10. the test method of conducting slip ring according to claim 8, which is characterized in that the acquisition described first is conductive Slip ring is in different communication quality data when testing current load, specially:
Acquisition communication main station communicates the signal of communication on the first communication line between slave station with first;First communication line Pass through first conducting slip ring;
Acquire second conducting slip ring in different communication quality data when testing current load, specially:
Acquisition communication main station communicates the signal of communication on direct second communication line of slave station with second;Second communication line Pass through second conducting slip ring;
The communication main station is used to send control instruction to the communication slave station, and the communication slave station is used for the control instruction It responds.
CN201610581294.0A 2016-07-21 2016-07-21 The test system and method for conducting slip ring CN105974247B (en)

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