Background technology
Aeroengine Control Systems are fadec, and in Full Authority Digital electronic engine operating mechanism, alternating current generator contains
Match power convert) be Aeroengine Control Systems important composition part, be the main power supply of system, alternative electric generation
The safety and reliability of machine, directly affects the safety and reliability of whole Engine digital control system, and efficient, long-lived and height can
It is the inevitable requirement that it is developed by property.For improving design efficiency, it is prevented effectively from design and leads to repeatedly because experience lacks, really
Protect project process to require, need while design, design to be verified, and make quick, reliable assessment.
In the design process of aviation alternator, how to overcome electromagnetism, material, structure, the environment property to electromotor
Can impact, and how the Width funtion sending aviation alternator, broadband alternating current power supply are effectively converted to direct current
Power supply, building a set of alternator design simulating, verifying and test platform is a rational solution.Because exchange is sent out
The for example high rotating speed of the particularity of motor product, stator, rotor isolating construction, need lubricating oil to cool down in operating, output can short circuit etc.,
Development carries out extremely difficult, is one of key technology of aircraft, had once been once the military and main frame unit focus of attention, and had been
This, special test equipment is badly in need of in relevant unit, surveys for the examination of alternating current generator and power inverter, function
Examination, failure proof, system integration test and technical research.
The test of the alternating current generator in existing Aeroengine Control Systems, examination platform adopt traditional gear liter
Fast case mode, rotary inertia is big, response speed slow it is impossible to true reappearance engine transient change procedure.Cannot meet high-power,
The test of high tacho generator, examination demand.
Due to lacking special test and testing equipment, product enter rear lack detection research technique, also lack test and test
The depth of card, affects making smooth advances of whole Engine digital control system development always.Relevant electromotor Development Techniques are particularly sent out
The experimental test technology of motor key components and partss is the technology of strict block abroad, and domestic do not have similar equipment to be available for joining yet
Examine.
Content of the invention
It is contemplated that overcoming the drawbacks described above existing for prior art, provide one kind being capable of automatic real-time measurement electromotor
The test device of the alternating current generator of the relevant parameter under different working condition, is that product development, Performance Assessment, inspection and acceptance carry
For foundation, realize alternating current generator aeronautic measurement comprehensive standard.
The present invention to implement by the following technical programs.
A kind of test device of alternating current generator it is characterised in that: the test device of described alternating current generator include frame,
TT&C system, dragging case and power inverter, also include the operating board cooling down and heating, are provided with workbench in the top surface of frame,
Cooling system and heating system be arranged below in frame and in workbench, the operating board of cooling and heating is located at the side of frame
Side, is provided with dragging motor and switching tooling on the table, and dragging motor is in transmission connection with switching tooling, the examination as test
Test part and be alternating current generator and be connected with switching tooling, switching tooling is used for the accessory drive gearbox of analog AC electromotor and is provided with
Independent two set oil supply loop that is mutually isolated and being independent of each other, a road supplies lubricating oil for described alternating current generator, another Lu Weizhuan
Connect the mechanical jointses between frock and alternating current generator and supply lubricating oil, TT&C system includes control computer and measurement and control unit,
Control computer in TT&C system, according to the working condition of the accessory drive gearbox of alternating current generator, controls dragging motor to be transported
Turn, cooling system is described dragging motor and switching tooling according to working condition and alternating current generator is cooled down, heating system
Alternating current generator can be heated, measurement and control unit is used for the checking of alternating current generator performance test, checks and accepts and participates in test connection
Examination, and to the temperature in alternating current generator and power inverter test, pressure, flow, voltage, electric current, frequency, the letter reported to the police
Number carry out data acquisition and control, and monitor and control described dragging motor, wherein switching tooling is described alternating current generator institute
Cold and hot mainly simulation for lubricating oil flows into the state of alternating current generator lubricating oil, can to enter alternating current generator lubricating oil temperature,
Flow is controlled, the operating characteristic in different oil temperatures, pressure, oil condition for the analog AC electromotor.
Described control computer is provided with modular man machine interface, and modular man machine interface comprises main interface, at a high speed
Motor interface, oil system interface, parametric calibration interface, fault diagnosis interface, data readback interface and section setting, described survey
Control unit includes collecting computer, and data acquisition computer gathers moment of torsion and rotating speed, alternating current generator and the power of dragging motor
The case temperature of changer, ambient temperature and electronic program load signal, gather alternating current generator line by first processing units
Voltage, phase current and its control signal, by the voltage of second processing unit collection power inverter, electric current, frequency.
Described dragging motor and its control include supply voltage: three-phase ac380v;The range of speeds: 250~25000r/min,
Stepless adjustable to maximum speed by starting point, maximum speed can free amplitude limit;Power bracket: the full range of speeds is not less than 10kw,
Load torque is not less than 4n.m;Control function: drag platform and be provided with manual/auto two kinds of regulative modes, auto state adopts upper
Machine controls, and manual mode adopts knob to control, and drags on platform and is available for his machine control with interface;Index For Steady-state: the sampling period is not
More than under 100ms, rotating speed stable state is not more than ± 0.1% dynamic indicator: 5% step response of high-speed electric expreess locomotive zero load rated speed
Time is not more than 200ms;Turn to: look behind from motor output end, for counterclockwise, also can inverted running;Cooling: carry cooling
Liquid forces liquid cold;Coolant is aeroengine oil 4050.Enter alternating current generator adapter cooling oil temperature and be less than 55 DEG C, enter
The controlled liter of oil temperature of tested alternating current generator is gently lowered the temperature, temperature range be 20~150 DEG C, flow can according to test requirements document with turn
Speed changes automatically, and can meet longtime running;Output shaft jerk value: after output shaft tape relay seat, the output Axial and radial of adapter
Jerk value is not more than ± 0.03mm;Duty: can continuously work at least 15 hours;Defencive function: to dragging motor overload, mistake
Stream, excess temperature are processed and are protected;Electromagnetic compatibility: meet GB correlation EMC Requirements, just do not affecting miscellaneous equipment, instrument
Often work;
Described dragging motor adopts 25000rpm High-speed DC motor.
Described alternating current generator is sealed using rotatory sealing mode with the lubricating oil isolation of switching tooling connecting end surface.
The present invention compared with prior art has the advantage that the present invention has abandoned traditional slowspeed machine with raising speed case
Mode, provides power using high-speed direct-drive drive system for alternating current generator.High-speed direct-drive drive system is moved, steady-state behaviour meets
The requirement of accessory drive gearbox real work state, can true analog AC electromotor working condition, be the performance of alternating current generator
Test and checking provide reliable foundation.
The test device of alternating current generator of the present invention can be used for the performance test of alternating current generator, simulated engine adnexa machine
Casket operating mode l-G simulation test, short-circuit fault simulation test, the test of open circuit fault simulation test, hot operation, low-temperature working test, length
Life assessment test;Can be used for the performance test of power inverter, simulate fadec load condition l-G simulation test, environmental test, electricity
The compatible test of magnetic, environmental stress screening test;Can be used for the performance test after alternating current generator and power inverter coupling, synthesis
Test to Failure, combined reliability test, participation system integration semi-physical simulation, and can be used for alternating current generator and power change
The performances acceptance of parallel operation.
The test device of alternating current generator of the present invention adopts modularized design on the whole, is advantageously integrated and safeguards, will simultaneously
Experiment process standardization, process of the test automatization, result of the test standardization, drastically increase test efficiency and result of the test
Concordance and reliability, overall performance meets design requirement.
Specific embodiment
Below in conjunction with the accompanying drawings the test device of alternating current generator of the present invention is described in detail.
As shown in Figure 1, Figure 2, the test device of alternating current generator of the present invention, including TT&C system 1, drags case 2, frame 4 and work(
Rate changer, also includes the operating board 3 cooling down and heating, is provided with workbench 5 in the top surface of frame 4, in frame 4 and in work
Platform 5 cooling system 6 and heating system 7 are arranged below, the operating board 3 of cooling and heating is located at by the side of frame 4, in workbench
Dragging motor 8 and switching tooling 9 are installed on 5, dragging motor is in transmission connection with switching tooling, the testpieces as test is to hand over
Flow electromotor 10 and be connected with switching tooling 9, switching tooling 9 is used for the accessory drive gearbox of analog AC electromotor 10 and is provided with phase
The independent two set oil supply loop mutually isolated and be independent of each other, a road is described alternating current generator fuel feeding, and another road is switching work
Mechanical jointses fuel feeding between dress and alternating current generator, TT&C system 1 includes control computer and measurement and control unit, observing and controlling system
Control computer in system, according to the working condition of engine accessory power rating casing, controls dragging motor 8 to be operated, cooling system 6
According to working condition be dragging motor 8 and switching tooling 9 and alternating current generator 10 is cooled down, and is that cooling system 6 is provided with pipe
Dragging motor 8 and switching tooling 9 and alternating current generator 10 are passed through in road, and heating system 7 is provided with pipeline and passes through alternating current generator, thus
Alternating current generator can be heated.Measurement and control unit is used for the checking of alternating current generator performance test, checks and accepts and participate in test
Joint-trial, and to alternating current generator and power inverter test in temperature, pressure, flow, voltage, electric current, frequency, report to the police
Signal carries out data acquisition and controls, and realizes monitoring and controls described dragging motor.Wherein switching tooling 9 is alternating current generator 10
The cold and hot mainly simulation of supplied lubricating oil flows into the state of alternating current generator lubricating oil, can be to the temperature entering alternating current generator lubricating oil
Degree, flow are controlled, the operating characteristic in different oil temperatures, pressure, oil condition for the analog AC electromotor.
Control computer is provided with modular man machine interface, and modular man machine interface comprises main interface, high-speed electric expreess locomotive
Interface, oil system interface, parametric calibration interface, fault diagnosis interface, data readback interface and section setting, measurement and control unit bag
Include collecting computer, data acquisition computer gathers the moment of torsion of dragging motor and rotating speed, alternating current generator and power inverter
Case temperature, ambient temperature and electronic program load signal, gather alternating current generator line voltage, mutually electricity by first processing units
Stream and its control signal, by the voltage of second processing unit collection power inverter, electric current, frequency.Dragging motor includes height
Fast direct-drive motor and its drive system, such as using 250~25000rpm High-speed DC motor, stability full by it
The requirement of the real work state of sufficient alternating current generator accessory drive gearbox, the working condition of true analog AC electromotor, for exchange
The performance test of electromotor and checking provide reliable foundation.
The lubricating oil isolation of wherein alternating current generator 10 and the connecting end surface of switching tooling 9 is carried out close using rotatory sealing mode
Envelope.
The test device of alternating current generator of the present invention, is simulation Aeroengine Control Systems Special alternating-current electromotor and work(
The working condition of rate changer, automatically adjusts load parameter, and is acquired to by the various parameters of trial product, generates form.
The test device of wherein alternating current generator also includes dragging motor switch board, parameter testing cabinet, electronic load, observing and controlling
Unit includes data acquisition computer, and control computer passes through driver control dragging motor, and data acquisition computer collection is dragged
The case temperature of the moment of torsion of galvanic electricity machine and rotating speed, alternating current generator and power inverter, ambient temperature and electronic program load letter
Number, gather alternating current generator line voltage, phase current and its control signal by first processing units, adopted by second processing unit
The voltage of collection power inverter, electric current, frequency.
The test device of alternating current generator of the present invention can be used for the performance test of alternating current generator, simulated engine adnexa machine
Casket operating mode l-G simulation test, short-circuit fault simulation test, the test of open circuit fault simulation test, hot operation, low-temperature working test, length
Life assessment test;Can be used for the performance test of power inverter, simulate fadec load condition l-G simulation test, environmental test, electricity
The compatible test of magnetic, environmental stress screening test;Can be used for the performance test after alternating current generator and power inverter coupling, synthesis
Test to Failure, combined reliability test, participation system integration semi-physical simulation, and can be used for alternating current generator and power change
The performances acceptance of parallel operation.
Control computer is provided with test software, and test software adopts Document/View System Based mechanical development, using visual c++
Language and mfc class libraries, the measurement studio virtual instrument control in conjunction with ni company carries out INTERFACE DESIGN, using towards
The programmatics of object, testing system software adopts modularized design, comprises by main interface, high-speed electric expreess locomotive interface, lubricating oil
The interface that system interface, parametric calibration interface, fault diagnosis interface, data readback interface, section setting, background data base are constituted
And module.
Dragging motor of the present invention and its control:
Supply voltage: three-phase ac380v;The range of speeds: (250~25000) r/min, by starting point to maximum speed is stepless can
Adjust, maximum speed can free amplitude limit;Power bracket: the full range of speeds is not less than 10kw (load torque is not less than 4n.m);Control
Function processed: drag platform and be provided with manual/auto two kinds of regulative modes, auto state adopts PC control, manual mode is using rotation
Button controls, and drags on platform and is available for his machine control with interface;Index For Steady-state: the sampling period is not more than under 100ms, rotating speed stable state
It is not more than ± 0.1%;(by converter internal collection value examination) dynamic indicator: 5% step of high-speed electric expreess locomotive zero load rated speed
Response time is not more than 200ms;(50%, 60%, 80%, 90% 4 point examines raising speed and reduction of speed dynamic.) turn to: from electronic
Machine outfan looks behind, for counterclockwise (can inverted running);Cooling: carry coolant and force liquid cold;Coolant lubricates for aviation
Oil 4050.Enter alternating current generator adapter cooling oil temperature and be less than 55 DEG C, enter the controlled liter of oil temperature of tested alternating current generator
Gentle cooling, temperature range is (20~150) DEG C, and flow can change with rotating speed automatically according to test requirements document, and can meet long-term
Run;Output shaft jerk value: after output shaft tape relay seat, the output shaft radial beat eccentricity of adapter is not more than ± 0.03mm;Work
Make: adapt to s1 (continuous), can continuously work at least 15 hours;Defencive function: dragging motor overload, excessively stream, excess temperature are carried out
Process and protect;Electromagnetic compatibility: meet GB correlation EMC Requirements;Do not affect miscellaneous equipment, instrument normal work.
The key technology of the test device of alternating current generator of the present invention is:
1st, 25000rpm high-speed direct-drive:
The present invention has abandoned the mode with raising speed case for traditional slowspeed machine, using 25000rpm high-speed direct-drive drive system
There is provided power for alternating current generator.High-speed direct-drive drive system is moved, steady-state behaviour meets wanting of accessory drive gearbox real work state
Ask, can true analog AC electromotor working condition, the performance test for alternating current generator and checking provide reliable foundation.
2nd, the emulation of alternating current generator accessory drive gearbox environment: switching tooling is used for simulating accessory drive gearbox and alternating current generator
Mechanical jointses and alternating current generator oil supply loop.Switching tooling possesses two sets of independent oil supply loops, and a road is that exchange is sent out
Motor fuel feeding, another road is switching tooling high-speed bearing cooling and lubricating fuel feeding, and two sets of oil circuits are mutually isolated, are independent of each other.Exchange
Electromotor adopts rotatory sealing mode with the lubricating oil isolation of switching tooling connecting end surface, so that alternating current generator is handed in high-speed rotation
In stream electromotor, lubricating oil will not interpenetrate with lubricating oil in switching tooling, both ensure that the normal lubrication of switching tooling, and
Ensure that the normal fuel injection of alternating current generator.
3rd, the cold and hot simulation of lubricating oil: the cold and hot simulation of lubricating oil is mainly the state that simulation flows into alternating current generator lubricating oil, can be to entering
Enter the temperature of alternating current generator lubricating oil, flow etc. is controlled, analog AC electromotor is in different oil temperatures, pressure, fuel feeding
Operating characteristic during state.
4th, test software: software adopts Document/View System Based mechanical development, using visual c++ language and mfc class libraries, in conjunction with
The measurement studio virtual instrument control of ni company carries out INTERFACE DESIGN, using object-oriented programming skill
Art, software reliability is good, and has certain Universal and scalability, can take into account follow-up developments.Testing system software adopts
Modularized design, comprises main interface, high-speed electric expreess locomotive interface, oil system interface, parametric calibration interface, fault diagnosis interface, number
According to interface and modules such as playback interfaces, section setting, background data bases, and possesses perfect defencive function.