CN105353608B - Air generator digital control method, device and system - Google Patents
Air generator digital control method, device and system Download PDFInfo
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- CN105353608B CN105353608B CN201510922036.XA CN201510922036A CN105353608B CN 105353608 B CN105353608 B CN 105353608B CN 201510922036 A CN201510922036 A CN 201510922036A CN 105353608 B CN105353608 B CN 105353608B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
- G05B13/0205—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system
- G05B13/021—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system in which a variable is automatically adjusted to optimise the performance
- G05B13/0215—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system in which a variable is automatically adjusted to optimise the performance using trial and error method, including "peak-holding"
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Abstract
The invention discloses a kind of air generator digital control method, device and system, the air generator digital control method includes step：The operational order that aircraft handling panel sends over is received, obtains the inertia characteristics that air generator shows in the different rotating speeds stage；Inertia characteristics are analyzed using PID controller, carry out PID outputs；The main contral parameter for being exported and being obtained according to PID makees corresponding limitation and amendment to amount of fuel；And the control electric current of electrohydraulic servo device is adjusted, according to fuel delivery rule set in advance, air generator is controlled.The present invention solves the problems, such as that the hardware configuration that analog control device occurs is complicated, control accuracy is low, improves the safety and reliability of air generator, and overshoot is small, and the response time is fast, and dynamic property is excellent.The present invention improves the safety and reliability of air generator, and overshoot is small, and the response time is fast, and dynamic property is excellent.
Description
Technical field
The present invention relates to aero-engine field, especially, be related to a kind of air generator digital control method, device and
System.
Background technology
Air generator is made up of compressor, combustion chamber, turbine and its annex, is to belong to automatically controlling and from compressor
The gas-turbine unit of bleed.
Digital and electronic control device is the important component of air generator fuel oil and control system, and control device gathers
Atmospheric pressure P0, atmospheric temperature T0, rotor speed n, delivery temperature T5, lubricating oil pressure switching signal p and by aircraft handling panel
The operational order of transmission, igniter, fuel solenoid valve, lubricating oil magnetic valve, electric fuel oil are controlled according to operational order
Pump, start motor.Control device adjusts the control electric current of fuel servo control device according to control law, adjusts fuel oil oil transportation circle
Recirculating oil quantity, so as to control rotating speed when air generator starting, stable state, loading, when air generator breaks down, control
Device control air generator parking processed, and send corresponding indicating fault.With timed unit also output switching signal,
The various work state informations of RS422 communication datas, RS232 communication data real-time display air generators.
In general, air generator control device is mostly analog control device, typically by more than 8 pieces circuit board groups
Into.Its main operational principle is as follows：The multiple power sources such as+5V, ± 12V ,+24V are provided by power panel；By a variety of comparison circuits, put
Big circuit composition signals of rotational speed sensor n, delivery temperature T5, lubricating oil pressure signal p detections and protection module；By a variety of amplification electricity
Road adjusts the control electric current of electrohydraulic servo valve；Patrolled by the work of counter circuit, gate circuit, trigger control air generator
Collect, sequential, and producing switching signal shows indicator lamp；And generate number of starts count pulse, run time counts arteries and veins
Punching, two or more mechanical pointer dial plates are driven to show air generator number of starts, run time.
Although analog control device operation principle clearly, it is intuitive display, rational in infrastructure, also meet to a certain extent
The demand for control of air generator, but its hardware configuration is complicated, weight is relatively heavy, control parameter is relatively fewer, control accuracy
It is relatively low, and can not realize that digital information shows, stored, it is impossible to directly reflect the history shape of air generator major parameter
State, it is impossible to diagnose the failure cause of more air generator systems, easily expend service life and the increase examination of air generator
Car, the debugging difficulty installed, taken a flight test.
The content of the invention
The invention provides a kind of air generator digital control method, device and system, are filled with solving analog control
Put the hardware configuration complexity of appearance, weight is heavy, control parameter is few, control accuracy is low, it is impossible to diagnose more air generator systems
Failure cause, the service life and increase test run, the technology for the debugging difficulty installed, taken a flight test for easily expending air generator asks
Topic.
The technical solution adopted by the present invention is as follows：
According to an aspect of the present invention, there is provided a kind of air generator digital control method, including step：
The operational order that aircraft handling panel sends over is received, air generator is obtained and is shown in the different rotating speeds stage
The inertia characteristics come；
Inertia characteristics are analyzed using PID controller, carry out PID outputs；
The main contral parameter for being exported and being obtained according to PID makees corresponding limitation and amendment to amount of fuel；And adjust electro-hydraulic servo
The control electric current of device, according to fuel delivery rule set in advance, air generator is controlled.
Further, main contral parameter includes lubricating oil pressure switching signal, rotor speed, environmental pressure, atmospheric temperature and row
Temperature degree.
Further, it is electrohydraulic servo valve to adjust electrohydraulic servo device, adjusts the control electric current of electrohydraulic servo device, according to
Fuel delivery rule set in advance, the step of being controlled to air generator, include：
The control electric current of electrohydraulic servo valve is adjusted, according to fuel delivery rule set in advance, takes the mode of Discrete control
Air generator is controlled in the corresponding Discrete control stage.
Further, the Discrete control stage includes preparatory stage, boost phase, speed closed loop control stage, stable state control
Stage and shutdown phase, the main contral parameter for being exported and being obtained according to PID make corresponding limitation and amendment to amount of fuel；And adjust electricity
The control electric current of liquid servomechanism installation, according to fuel delivery rule set in advance, the step of being controlled to air generator, includes：
After receiving the starting order that the starting button on aircraft handling panel is sent, into the preparatory stage, in the preparatory stage
Very first time threshold range in, connect power supply signal, has opened firearm and starting motor, with the electricity of the electrohydraulic servo valve of setting
Flow initial value and control the supply of the first constant fuel oil；And in the range of the second time threshold of setting and delivery temperature be less than first temperature
When spending threshold value, whether the rotating speed for judging to start motor is more than or equal to preset rotation speed value, if so, then turning sky by starting motor belt motor
After gas starter, to starting motor power-off；According to default first fuel delivery rule, transported with the electric current of the electrohydraulic servo valve of setting
Row value control the second constant fuel oil supply；And dynamic height is played according to flight, the fuel value for being not up to amount of fuel requirement is carried out
Amendment；
If in the range of the second time threshold of setting and when delivery temperature is more than or equal to second temperature threshold value, into adding
In the fast stage, in boost phase, dynamic height is played according to flight, the fuel value for being not up to amount of fuel requirement is modified；
In the range of the 3rd time threshold of setting, judging whether the rotating speed of air engine device is more than or equal to allows to turn
Speed, if so, then entering the speed closed loop control stage, in the speed closed loop control stage, according to given rotating speed acceleration with
Three fuel delivery rules control the supply of the 3rd fuel oil；
In the range of the 4th time threshold of setting, judge whether the rotating speed of air engine device turns more than or equal to work
Speed, if so, then enter stable state control the stage, in the stable state control stage, disconnect igniter simultaneously to start motor power supply, according to
Fixed rotating speed acceleration controls the supply of the 3rd fuel oil with the 3rd fuel delivery rule；
In the range of the 4th time threshold of setting, when judging that the rotating speed of air engine device is less than working speed, then enter
The speed closed loop control stage, in the speed closed loop control stage, according to given rotating speed acceleration with the 3rd fuel delivery rule control
Make the supply of the 3rd fuel oil.
Further, the main contral parameter for exporting and obtaining according to PID makees corresponding limitation and amendment to amount of fuel；And adjust
The control electric current of electrohydraulic servo device, according to fuel delivery rule set in advance, the step of being controlled to air generator, wraps
Include：
If in the range of the second time threshold of setting and when delivery temperature is less than the first temperature threshold, judge to start motor
Rotating speed be less than preset rotation speed value, then jump to shutdown phase, in shutdown phase, disconnect power supply signal；
If in the range of the 3rd time threshold of setting, judging that the rotating speed of air engine device is less than allows rotating speed, then redirects
To shutdown phase, in shutdown phase, power supply signal is disconnected.
According to another aspect of the present invention, a kind of air generator numerical control device is additionally provided, including：
Receiving module, the operational order sended over for receiving aircraft handling panel, air generator is obtained in difference
The inertia characteristics that the rotating speed stage shows；
Output module, for using PID controller analysis inertia characteristics, carrying out PID outputs；
Control module, the main contral parameter for being exported and being obtained according to PID make corresponding limitation and amendment to amount of fuel；And
The control electric current of electrohydraulic servo device is adjusted, according to fuel delivery rule set in advance, air generator is controlled.
Further, control module is additionally operable to adjust the control electric current of electrohydraulic servo valve, according to fuel delivery set in advance
Rule, the mode of Discrete control is taken to be controlled in the corresponding Discrete control stage to air generator.
Further, control module includes：
Startup control unit, after the starting order sent for receiving the starting button on aircraft handling panel, into standard
In the standby stage, in the very first time threshold range of preparatory stage, power supply signal is connected, opened firearm and started motor, to set
The electric current initial value of fixed electrohydraulic servo valve controls the supply of the first constant fuel oil；And in the range of the second time threshold of setting and
When delivery temperature is less than the first temperature threshold, whether the rotating speed for judging to start motor is more than or equal to preset rotation speed value, if so,
After then turning air engine device by starting motor belt motor, to starting motor power-off；According to default first fuel delivery rule, with setting
The electric current runtime value of electrohydraulic servo valve controls the supply of the second constant fuel oil；And dynamic height is played according to flight, to being not up to fuel oil
The fuel value that amount requires is modified；
Accelerate control unit, if in the range of the second time threshold of setting and delivery temperature be more than or equal to second
During temperature threshold, into boost phase, in boost phase, dynamic height is played according to flight, to being not up to amount of fuel requirement
Fuel value is modified；
Speed closed loop control unit, in the range of the 3rd time threshold of setting, judging the rotating speed of air engine device
Whether allow rotating speed, if so, then entering the speed closed loop control stage, in the speed closed loop control stage, press if being more than or equal to
The supply of the 3rd fuel oil is controlled with the 3rd fuel delivery rule according to given rotating speed acceleration；
Stable state control unit, in the range of the 4th time threshold of setting, whether the rotating speed of judgement air engine device
More than or equal to working speed, if so, then entering the stable state control stage, in the stable state control stage, disconnection igniter is simultaneously right
Motor power supply is started, the supply of the 3rd fuel oil is controlled with the 3rd fuel delivery rule according to given rotating speed acceleration.
Further, control module also includes：
Identifying unit, in the range of the 4th time threshold of setting, judging that the rotating speed of air engine device is less than work
During rotating speed, then into the speed closed loop control stage, in the speed closed loop control stage, according to given rotating speed acceleration with the 3rd
Fuel delivery rule controls the supply of the 3rd fuel oil.
Further, institute's control module also includes：
Parking toll unit, if in the range of the second time threshold of setting and delivery temperature is less than the first temperature threshold
During value, the rotating speed for judging to start motor is less than preset rotation speed value, then jumps to shutdown phase, in shutdown phase, disconnects power supply
Signal；If being additionally operable in the range of the 3rd time threshold of setting, judging that the rotating speed of air engine device is less than allows rotating speed, then jumps
Shutdown phase is gone to, in shutdown phase, disconnects power supply signal.
According to another aspect of the present invention, a kind of air generator numerical control system, including above-mentioned sky are additionally provided
Gas generator numerical control device.
The invention has the advantages that：
Air generator digital control method and device provided by the invention, are sended over by receiving aircraft handling panel
Operational order, obtain the inertia characteristics that are showed in the different rotating speeds stage of air generator；It is used using PID controller analysis
Property feature, carry out PID outputs；The main contral parameter for being exported and being obtained according to PID makees corresponding limitation and amendment to amount of fuel；And adjust
The control electric current of electrohydraulic servo device is saved, according to fuel delivery rule set in advance, air generator is controlled.The present invention
Automatically controlled using digital and electronic, the main contral parameter of air generator is correspondingly processed and protected, solves analog control
The problem of hardware configuration that device processed occurs is complicated, control accuracy is low, the safety and reliability of air generator is improved, and it is super
Tune amount is small, and the response time is fast, and dynamic property is excellent.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the hardware circuit diagram of air generator numerical control system of the present invention；
Fig. 2 is the electrohydraulic servo valve current control circuit block diagram of air generator numerical control system of the present invention；
Fig. 3 is the schematic flow sheet of air generator digital control method first embodiment of the present invention；
Fig. 4 is air generator numerical control system control block diagram of the present invention；
Fig. 5 is that the main contral parameter for exporting and obtaining according to the PID described in Fig. 3 is made to limit and repair accordingly to amount of fuel
Just；And the control electric current of electrohydraulic servo device is adjusted, according to fuel delivery rule set in advance, the air generator is carried out
The refinement schematic flow sheet of the step of control；
Fig. 6 is the high-level schematic functional block diagram of air generator numerical control device of the present invention；And
Fig. 7 is the high-level schematic functional block diagram of control module described in Fig. 6.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to Figures 1 and 2, the present invention provides a kind of hardware circuit of air generator numerical control system, and the circuit is
With microprocessor (such as 8 MCS-51 series monolithics：AT89S52, such as 16 8-digit microcontrollers：TLCS-900 series, such as 32
DSP series：TMS320F2812 etc.), the control circuit that crystal oscillator and memory are core, it is auxiliary under the power supply of power-switching circuit
Exported with On-off signal, A/D, D/A modulate circuit, and hardware excess revolutions circuit, reset circuit and RS422, RS232 communication connect
Mouth circuit.
Further, as shown in figure 3, the preferred embodiments of the present invention provide a kind of digital control side of air generator
Method, including step：
Step S100, the operational order that aircraft handling panel sends over is received, obtains air generator in different rotating speeds
The inertia characteristics that stage shows.
Air generator numerical control system receives the operational order that aircraft handling panel sends over, and obtains air
The inertia characteristics that device shows in the different rotating speeds stage.The operational order can be that the starting for controlling air generator to start refers to
Order, the given rotating speed control instruction that status switch that can also be on control panel sends over, as shown in Figure 4.The inertia characteristics
Rotating speed feature and air generator of the air generator in starting, stable state and loading is shown as to stop when breaking down
Feature.
Step S200, inertia characteristics are analyzed using PID controller, carries out PID outputs.
Air generator numerical control system is analyzed and closed to the inertia characteristics of air generator using PID controller
Ring controls, and provides PID outputs.
Step S300, the main contral parameter for exporting and obtaining according to PID makees corresponding limitation and amendment to amount of fuel；And adjust
The control electric current of electrohydraulic servo device, according to fuel delivery rule set in advance, air generator is controlled.
The PID that air generator numerical control system is provided according to PID controller is exported with the main contral parameter of acquisition, right
Make corresponding limitation and amendment to amount of fuel；And the control electric current of electrohydraulic servo device is adjusted, according to fuel delivery set in advance
Rule, the mode of Discrete control is taken to carry out closed-loop control to air generator in the corresponding Discrete control stage.Wherein, it is main
Control parameter includes lubricating oil pressure switching signal P, rotor speed N, environmental pressure P0, atmospheric temperature T0 and delivery temperature T5.Regulation
Electrohydraulic servo device can be regulation electrohydraulic servo valve.The Discrete control stage includes preparatory stage, boost phase, speed closed loop control
Stage, stable state control stage and shutdown phase processed.
The air generator digital control method that the present embodiment provides, the behaviour sended over by receiving aircraft handling panel
Instruct, obtain the inertia characteristics that air generator shows in the different rotating speeds stage；It is special using PID controller analysis inertia
Sign, carry out PID outputs；The main contral parameter for being exported and being obtained according to PID makees corresponding limitation and amendment to amount of fuel；And adjust electricity
The control electric current of liquid servomechanism installation, according to fuel delivery rule set in advance, air generator is controlled.The present invention solves
The problem of hardware configuration that analog control device occurs is complicated, control accuracy is low, improve air generator security and
Reliability, and overshoot is small, the response time is fast, and dynamic property is excellent.
As shown in figure 5, the air generator digital control method that this implementation provides, the step S300 include：
Further, the main contral parameter for exporting and obtaining according to PID makees corresponding limitation and amendment to amount of fuel；And adjust
The control electric current of electrohydraulic servo device, according to fuel delivery rule set in advance, the step of being controlled to air generator, wraps
Include：
Step S310, after receiving the starting order that sends of starting button on aircraft handling panel, into the preparatory stage,
In the very first time threshold range of preparatory stage, power supply signal is connected, firearm has been opened and has started motor, electro-hydraulic with setting is watched
The electric current initial value for taking valve controls the supply of the first constant fuel oil；And in the range of the second time threshold of setting and delivery temperature is small
When the first temperature threshold, whether the rotating speed for judging to start motor is more than or equal to preset rotation speed value, if so, then by starting electricity
Machine band turns air engine device.After starting motor belt motor turns air engine device, to starting motor power-off；According to default first fuel delivery
Rule, the supply of the second constant fuel oil is controlled with the electric current runtime value of the electrohydraulic servo valve of setting；And dynamic height is played according to flight,
The fuel value for being not up to amount of fuel requirement is modified.
Air generator numerical control system receives the starting order that the starting button on aircraft handling panel is sent, and root
According to starting order, into the preparatory stage, in the range of the very first time threshold value T1S of preparatory stage, power supply signal is connected, is opened
Firearm and starting motor, the supply of the first constant fuel oil is controlled with the electric current initial value (such as 10mA) of the electrohydraulic servo valve of setting；
And start starting time counting, in the range of the second time threshold T1S of setting and delivery temperature T5 is less than the first temperature threshold
At T1 DEG C, whether the rotating speed for judging to start motor is more than or equal to preset rotation speed value, if so, then turning air by starting motor belt motor
After starter, to starting motor power-off；According to default first fuel delivery rule mf=f (P0, T0), with the electro-hydraulic servo of setting
The electric current runtime value of valve controls the supply of the second constant fuel oil；And dynamic height is played according to flight, to being not up to amount of fuel requirement
Fuel value is modified, and high space-time reduces amount of fuel, prevents rich oil overtemperature.
If step S320, in the range of the second time threshold of setting and delivery temperature is more than or equal to second temperature threshold value
When, into boost phase, in boost phase, dynamic height is played according to flight, the fuel value for being not up to amount of fuel requirement is entered
Row amendment.
If air generator numerical control system in the range of the second time threshold T2S of setting and delivery temperature be more than or
During equal to T2 DEG C of second temperature threshold value, into boost phase, in boost phase, dynamic height is played according to flight, to not up to
The fuel value of amount of fuel requirement is modified, and during ground, carries out afterburning enriching control, high space-time reduces amount of fuel, prevents rich oil
Overtemperature.
Step S330, in the range of the 3rd time threshold of setting, judge air engine device rotating speed whether be more than or
Equal to rotating speed is allowed, if so, then entering the speed closed loop control stage, in the speed closed loop control stage, according to given rotating speed
Acceleration controls the supply of the 3rd fuel oil with the 3rd fuel delivery rule.
Air generator numerical control system judges air engine device in the range of the 3rd time threshold T3S of setting
Whether rotating speed, which is more than or equal to, allows rotating speed, if so, then entering the speed closed loop control stage, in the speed closed loop control stage
In, the supply of the 3rd fuel oil is controlled with the 3rd fuel delivery rule mf=f (n, P0, T5) according to given rotating speed acceleration (N%).
Step S340, in the range of the 4th time threshold of setting, judge air engine device rotating speed whether be more than or
Equal to working speed, if so, then entering the stable state control stage, in the stable state control stage, igniter is disconnected and to starting motor
Power supply, the supply of the 3rd fuel oil is controlled with the 3rd fuel delivery rule according to given rotating speed acceleration.
Air generator numerical control system judges air engine device in the range of the 4th time threshold T4S of setting
Whether rotating speed is more than or equal to working speed, if so, then entering stable state control stage, in the stable state control stage, cut-off point
Firearm is simultaneously powered to starting motor, according to given rotating speed acceleration (N%) with the 3rd fuel delivery rule mf=f (n, P0, T5)
The 3rd constant fuel oil is controlled to supply.Wherein, the fuel feeding of steady-state process is not constant fuel oil, and fuel consumption is according to rotating speed herein
Fluctuation carries out dynamic regulation, the fluctuation of speed is met that dynamic property is better than the ± n% of maximum (top) speed frequency values, such as ±
0.3%*4872Hz.
Step S350, in the range of the 4th time threshold of setting, if the rotating speed of air engine device is less than working speed,
Into the speed closed loop control stage, in the speed closed loop control stage, according to given rotating speed acceleration with the 3rd fuel feeding gauge
Rule control the 3rd fuel oil supply.
Air generator numerical control system is in the range of the 4th time threshold T4S of setting, if it is determined that air engine device
Rotating speed be less than working speed, then into the speed closed loop control stage, in the speed closed loop control stage, according to given rotating speed
Acceleration (N%) controls the supply of the 3rd fuel oil with the 3rd fuel delivery rule mf=f (n, P0, T5), accelerates again.
Further, as shown in figure 5, the air generator digital control method that this implementation provides, the step S300 is also
Including：
If step S360, in the range of the second time threshold of setting and when delivery temperature is less than the first temperature threshold, sentence
Surely the rotating speed for starting motor is less than preset rotation speed value, then jumps to shutdown phase, in shutdown phase, disconnects power supply signal.
If air generator numerical control system is in the range of the second time threshold T2S of setting and delivery temperature is less than the
During one T1 DEG C of temperature threshold, the rotating speed for judging to start motor is less than preset rotation speed value, then shutdown phase is jumped to, in shutdown phase
In, power supply signal is disconnected, and wait that the 4th time threshold T4S then disconnects oil tank stomata magnetic valve and fuel outlet is drained the oil electromagnetism
Valve power supply, is transferred to the preparatory stage.
If step S370, in the range of the 3rd time threshold of setting, judging that the rotating speed of air engine device is less than allows to turn
Speed, then shutdown phase is jumped to, in shutdown phase, disconnect power supply signal.
If air generator numerical control system in the range of the 3rd time threshold T3S of setting, judges air engine device
Rotating speed be less than allow rotating speed, then jump to shutdown phase, in shutdown phase, disconnect power supply signal, and wait the 4th time
Threshold value T4S then disconnects oil tank stomata magnetic valve and fuel outlet oil discharging electromagnetic valve power supply, is transferred to the preparatory stage.In addition, air
If blocking occurs for hardware during generator numerical control system self-test, lubricating oil pressure is low, igniting is unsuccessful, delivery temperature alerts, turns
When speed exceedes maximum speed less than minimum speed or rotating speed, then shutdown phase is jumped to.
The air generator digital control method that the present embodiment provides, showed according to air generator in the different rotating speeds stage
The different inertia characteristics gone out, using segmentation PID control, to reduce the overshoot of system and response time, improve the dynamic of system
Performance.Corresponding limitation and amendment are made according to rotating speed, environmental pressure, environment temperature, delivery temperature to PID outputs, to ensure to be
Unite safe and reliable operation.
Further, as shown in fig. 6, the preferred embodiment of the present invention provide air generator numerical control device, including：
Receiving module 10, the operational order sended over for receiving aircraft handling panel, air generator is obtained not
The inertia characteristics showed with the rotating speed stage；
Output module 20, for using PID controller analysis inertia characteristics, carrying out PID outputs；
Control module 30, the main contral parameter for being exported and being obtained according to PID make corresponding limitation and amendment to amount of fuel；
And the control electric current of electrohydraulic servo device is adjusted, according to fuel delivery rule set in advance, air generator is controlled.
The receiving module 10 of air generator numerical control system receives the operational order that aircraft handling panel sends over,
Obtain the inertia characteristics that air generator shows in the different rotating speeds stage.The operational order can be control air generator
The starting order of starting, the given rotating speed control instruction that status switch that can also be on control panel sends over, such as Fig. 3 institutes
Show.The inertia characteristics show as rotating speed feature and air generator of the air generator in starting, stable state and loading and existed
The feature stopped during failure.
Inertia characteristics of the output module 20 of air generator numerical control system using PID controller to air generator
Analyzed and closed-loop control, and provide PID outputs.
The PID that the control module 30 of air generator numerical control system is provided according to PID controller is exported with acquisition
Main contral parameter, to making corresponding limitation and amendment to amount of fuel；And the control electric current of electrohydraulic servo device is adjusted, according to advance
The fuel delivery rule of setting, the mode of Discrete control is taken to carry out closed loop to air generator in the corresponding Discrete control stage
Control.Wherein, main contral parameter includes lubricating oil pressure switching signal P, rotor speed N, environmental pressure P0, atmospheric temperature T0 and exhaust
Temperature T5.It can be regulation electrohydraulic servo valve to adjust electrohydraulic servo device.The Discrete control stage includes the preparatory stage, accelerates rank
Section, speed closed loop control stage, stable state control stage and shutdown phase.
The air generator numerical control device that the present embodiment provides, the behaviour sended over by receiving aircraft handling panel
Instruct, obtain the inertia characteristics that air generator shows in the different rotating speeds stage；It is special using PID controller analysis inertia
Sign, carry out PID outputs；The main contral parameter for being exported and being obtained according to PID makees corresponding limitation and amendment to amount of fuel；And adjust electricity
The control electric current of liquid servomechanism installation, according to fuel delivery rule set in advance, air generator is controlled.The present invention solves
The problem of hardware configuration that analog control device occurs is complicated, control accuracy is low, improve air generator security and
Reliability, and overshoot is small, the response time is fast, and dynamic property is excellent.
Further, the air generator numerical control device provided referring to Fig. 7, the present embodiment, control module 30 include：
Startup control unit 31, after the starting order sent for receiving the starting button on aircraft handling panel, enter
Preparatory stage, in the very first time threshold range of preparatory stage, power supply signal is connected, opened firearm and started motor, with
The electric current initial value of the electrohydraulic servo valve of setting controls the supply of the first constant fuel oil；And in the range of the second time threshold of setting
And delivery temperature, when being less than the first temperature threshold, whether the rotating speed for judging to start motor is more than or equal to preset rotation speed value, if
It is, then after turning air engine device by starting motor belt motor, to starting motor power-off；According to default first fuel delivery rule, to set
The electric current runtime value of fixed electrohydraulic servo valve controls the supply of the second constant fuel oil；And dynamic height is played according to flight, to not up to
The fuel value of amount of fuel requirement is modified；
Accelerate control unit 32, if in the range of the second time threshold of setting and delivery temperature is more than or equal to the
During two temperature thresholds, into boost phase, in boost phase, dynamic height is played according to flight, to being not up to amount of fuel requirement
Fuel value be modified；
Speed closed loop control unit 33, in the range of the 3rd time threshold of setting, judging turning for air engine device
Whether speed, which is more than or equal to, allows rotating speed, if so, then enter the speed closed loop control stage, in the speed closed loop control stage,
The supply of the 3rd fuel oil is controlled with the 3rd fuel delivery rule according to given rotating speed acceleration；
Stable state control unit 34, it is in the range of the 4th time threshold of setting, judging the rotating speed of air engine device
It is no to be more than or equal to working speed, if so, then entering the stable state control stage, in the stable state control stage, disconnect igniter simultaneously
To starting motor power supply, the supply of the 3rd fuel oil is controlled with the 3rd fuel delivery rule according to given rotating speed acceleration.
Identifying unit 35, in the range of the 4th time threshold of setting, judging that the rotating speed of air engine device is less than work
When making rotating speed, then into the speed closed loop control stage, in the speed closed loop control stage, according to given rotating speed acceleration with
Three fuel delivery rules control the supply of the 3rd fuel oil.
Parking toll unit 36, if in the range of the second time threshold of setting and delivery temperature is less than the first temperature
During threshold value, the rotating speed for judging to start motor is less than preset rotation speed value, then jumps to shutdown phase, in shutdown phase, disconnects and supplying
Electric signal；If being additionally operable in the range of the 3rd time threshold of setting, judging that the rotating speed of air engine device is less than allows rotating speed, then
Shutdown phase is jumped to, in shutdown phase, disconnects power supply signal.
The startup control unit 31 of air generator numerical control system receives the starting button hair on aircraft handling panel
The starting order gone out, and according to starting order, into the preparatory stage, in the range of the very first time threshold value T1S of preparatory stage, connect
Logical power supply signal, firearm is opened and has started motor, controlled with the electric current initial value (such as 10mA) of the electrohydraulic servo valve of setting
First constant fuel oil is supplied；And start starting time counting, in the range of the second time threshold T1S of setting and delivery temperature T5
During less than T1 DEG C of the first temperature threshold, whether the rotating speed for judging to start motor is more than or equal to preset rotation speed value, if so, then by
After starting motor belt motor turns air engine device, to starting motor power-off；According to default first fuel delivery rule mf=f (P0, T0),
The supply of second constant fuel oil is controlled with the electric current runtime value of the electrohydraulic servo valve of setting；And dynamic height is played according to flight, to not
The fuel value for reaching amount of fuel requirement is modified, and high space-time reduces amount of fuel, prevents rich oil overtemperature.
If the acceleration control unit 32 of air generator numerical control system is in the range of the second time threshold T2S of setting
And delivery temperature is when being more than or equal to T2 DEG C of second temperature threshold value, into boost phase, in boost phase, according to rising for flight
Dynamic height, the fuel value for being not up to amount of fuel requirement is modified, during ground, carries out afterburning enriching control, high space-time is reduced
Amount of fuel, prevent rich oil overtemperature.
Threeth time threshold T3S scope of the speed closed loop control unit 33 of air generator numerical control system in setting
Interior, judging whether the rotating speed of air engine device is more than or equal to allows rotating speed, if so, then enter the speed closed loop control stage,
In the speed closed loop control stage, according to given rotating speed acceleration (N%) with the 3rd fuel delivery rule mf=f (n, P0, T5)
The 3rd constant fuel oil is controlled to supply.
The stable state control unit 34 of air generator numerical control system in the range of the 4th time threshold T4S of setting,
Judge whether the rotating speed of air engine device is more than or equal to working speed, if so, then entering the stable state control stage, in stable state control
In stage processed, igniter is disconnected and to starting motor power supply, according to given rotating speed acceleration (N%) with the 3rd fuel delivery rule
Mf=f (n, P0, T5) controls the supply of the 3rd fuel oil.Wherein, the fuel feeding of steady-state process is not constant fuel oil, herein fuel consumption
According to the fluctuation of rotating speed carry out dynamic regulation, finally make the fluctuation of speed meet dynamic property better than maximum (top) speed frequency values ±
N%, such as ± 0.3%*4872Hz.
The identifying unit 35 of air generator numerical control system judges in the range of the 4th time threshold T4S of setting
Whether the rotating speed of air engine device is more than or equal to working speed, if so, then entering the stable state control stage, rank is controlled in stable state
Duan Zhong, igniter is disconnected and to starting motor power supply, according to given rotating speed acceleration (N%) with the 3rd fuel delivery rule mf=
F (n, P0, T5) controls the supply of the 3rd fuel oil.
If the parking toll unit 36 of air generator numerical control system is in the range of the second time threshold T2S of setting
And delivery temperature, when being less than T1 DEG C of the first temperature threshold, the rotating speed for judging to start motor is less than preset rotation speed value, then jumps to and stop
In the car stage, in shutdown phase, power supply signal is disconnected, and wait the 4th time threshold T4S then to disconnect oil tank stomata electromagnetism
Valve and fuel outlet oil discharging electromagnetic valve power supply, are transferred to the preparatory stage.The parking toll unit 36 of air generator numerical control system
If in the range of the 3rd time threshold T3S of setting, judging that the rotating speed of air engine device is less than allows rotating speed, then jumps to parking
In the stage, in shutdown phase, power supply signal is disconnected, and wait the 4th time threshold T4S then to disconnect oil tank stomata magnetic valve
With fuel outlet oil discharging electromagnetic valve power supply, the preparatory stage is transferred to.In addition, the parking toll unit of air generator numerical control system
If during 36 self-test hardware occur block, lubricating oil pressure is low, igniting is unsuccessful, delivery temperature alarm, rotating speed be less than minimum speed or
When rotating speed exceedes maximum speed, then shutdown phase is jumped to.
The air generator numerical control device that the present embodiment provides, showed according to air generator in the different rotating speeds stage
The different inertia characteristics gone out, using segmentation PID control, to reduce the overshoot of system and response time, improve the dynamic of system
Performance.Corresponding limitation and amendment are made according to rotating speed, environmental pressure, environment temperature, delivery temperature to PID outputs, to ensure to be
Unite safe and reliable operation.
The present embodiment further provides for a kind of air generator numerical control system, including above-mentioned air generator numeral
Control device, it will not be repeated here.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (5)
1. a kind of air generator digital control method, it is characterised in that including step：
The operational order that aircraft handling panel sends over is received, obtains what air generator showed in the different rotating speeds stage
Inertia characteristics；
The inertia characteristics are analyzed using PID controller, carry out PID outputs；
The main contral parameter for being exported and being obtained according to the PID makees corresponding limitation and amendment to amount of fuel；And adjust electro-hydraulic servo
The control electric current of device, according to fuel delivery rule set in advance, the air generator is controlled, wherein, the master
Control parameter includes lubricating oil pressure switching signal, rotor speed, environmental pressure, atmospheric temperature and delivery temperature；
The regulation electrohydraulic servo device is electrohydraulic servo valve, the control electric current of the regulation electrohydraulic servo device, according to advance
The fuel delivery rule of setting, the step of being controlled to the air generator, include：
The control electric current of electrohydraulic servo valve is adjusted, according to fuel delivery rule set in advance, takes the mode of Discrete control in phase
The air generator is controlled in the Discrete control stage answered；
The Discrete control stage includes preparatory stage, boost phase, speed closed loop control stage, stable state control stage and parking
Stage, the main contral parameter for exporting and obtaining according to the PID make corresponding limitation and amendment to amount of fuel；And adjust electro-hydraulic
The control electric current of servomechanism installation, according to fuel delivery rule set in advance, the step of being controlled to the air generator, wraps
Include：
After receiving the starting order that the starting button on aircraft handling panel is sent, into the preparatory stage, in the preparation
In the very first time threshold range in stage, power supply signal is connected, firearm has been opened and has started motor, with the electrohydraulic servo valve of setting
Electric current initial value control the first constant fuel oil supply；And in the range of the second time threshold of setting and delivery temperature is less than the
During one temperature threshold, judge whether the rotating speed for starting motor is more than or equal to preset rotation speed value, if so, then by described
After dynamic motor belt motor turns the air engine device, to the starting motor power-off；According to default first fuel delivery rule, with setting
Electrohydraulic servo valve electric current runtime value control the second constant fuel oil supply；And dynamic height is played according to flight, to not up to firing
The fuel value of oil mass requirement is modified；
If in the range of the second time threshold of setting and when delivery temperature is more than or equal to second temperature threshold value, add into described
In the fast stage, in the boost phase, dynamic height is played according to flight, the fuel value for being not up to amount of fuel requirement is repaiied
Just；
In the range of the 3rd time threshold of setting, judging whether the rotating speed of the air engine device is more than or equal to allows to turn
Speed, if so, then entering the speed closed loop control stage, in the speed closed loop control stage, according to given rotating speed acceleration
The supply of 3rd fuel oil is controlled with the 3rd fuel delivery rule；
In the range of the 4th time threshold of setting, judge whether the rotating speed of the air engine device turns more than or equal to work
Speed, if so, then entering the stable state control stage, in the stable state control stage, disconnect igniter and start electricity to described
Machine is powered, and the supply of the 3rd fuel oil is controlled with the 3rd fuel delivery rule according to given rotating speed acceleration；
In the range of the 4th time threshold of setting, when judging that the rotating speed of the air engine device is less than working speed, then enter
The speed closed loop control stage, in the speed closed loop control stage, according to given rotating speed acceleration with the 3rd fuel feeding
Gauge rule control the 3rd fuel oil supply.
2. air generator digital control method according to claim 1, it is characterised in that
The main contral parameter for exporting and obtaining according to the PID makees corresponding limitation and amendment to amount of fuel；And adjust electro-hydraulic
The control electric current of servomechanism installation, according to fuel delivery rule set in advance, the step of being controlled to the air generator, wraps
Include：
If in the range of the second time threshold of setting and when delivery temperature is less than the first temperature threshold, judge the starting motor
Rotating speed be less than preset rotation speed value, then jump to the shutdown phase, in the shutdown phase, disconnect the power supply signal；
If in the range of the 3rd time threshold of setting, judging that the rotating speed of the air engine device is less than allows rotating speed, then redirects
To shutdown phase, in the shutdown phase, the power supply signal is disconnected.
A kind of 3. air generator numerical control device, it is characterised in that including：
Receiving module (10), the operational order sended over for receiving aircraft handling panel, air generator is obtained in difference
The inertia characteristics that the rotating speed stage shows；
Output module (20), for analyzing the inertia characteristics using PID controller, carry out PID outputs；
Control module (30), the main contral parameter for being exported and being obtained according to the PID are made to limit and repair accordingly to amount of fuel
Just；And the control electric current of electrohydraulic servo device is adjusted, according to fuel delivery rule set in advance, the air generator is carried out
Control；
The control module (30) is additionally operable to adjust the control electric current of electrohydraulic servo valve, according to fuel delivery rule set in advance,
The mode of Discrete control is taken to be controlled in the corresponding Discrete control stage to the air generator；
The control module (30) includes：
Startup control unit (31), after the starting order sent for receiving the starting button on aircraft handling panel, into standard
In the standby stage, in the very first time threshold range of the preparatory stage, power supply signal is connected, has opened firearm and started motor,
The supply of first constant fuel oil is controlled with the electric current initial value of the electrohydraulic servo valve of setting；And in the second time threshold scope of setting
When interior and delivery temperature is less than the first temperature threshold, judge whether the rotating speed for starting motor is more than or equal to preset rotation speed
Value, if so, after then turning the air engine device by the starting motor belt motor, to the starting motor power-off；According to default
One fuel delivery rule, the supply of the second constant fuel oil is controlled with the electric current runtime value of the electrohydraulic servo valve of setting；And according to flight
Dynamic height is played, the fuel value for being not up to amount of fuel requirement is modified；
Accelerate control unit (32), if in the range of the second time threshold of setting and delivery temperature be more than or equal to second
During temperature threshold, into boost phase, in the boost phase, dynamic height is played according to flight, will to being not up to amount of fuel
The fuel value asked is modified；
Speed closed loop control unit (33), in the range of the 3rd time threshold of setting, judging the air engine device
Whether rotating speed, which is more than or equal to, allows rotating speed, if so, then entering the speed closed loop control stage, in the speed closed loop control rank
Duan Zhong, the supply of the 3rd fuel oil is controlled with the 3rd fuel delivery rule according to given rotating speed acceleration；
Stable state control unit (34), in the range of the 4th time threshold of setting, judging the rotating speed of the air engine device
Whether working speed is more than or equal to, if so, then entering stable state control stage, in the stable state control stage, cut-off point
Firearm is simultaneously powered to the starting motor, controls the 3rd fuel oil to supply with the 3rd fuel delivery rule according to given rotating speed acceleration
Should；
Identifying unit (35), in the range of the 4th time threshold of setting, judging that the rotating speed of the air engine device is less than
During working speed, then into the speed closed loop control stage, in the speed closed loop control stage, according to given rotating speed
Acceleration controls the supply of the 3rd fuel oil with the 3rd fuel delivery rule.
4. air generator numerical control device according to claim 3, it is characterised in that
The control module (30) also includes：
Parking toll unit (36), if in the range of the second time threshold of setting and delivery temperature is less than the first temperature threshold
During value, judge that the rotating speed for starting motor is less than preset rotation speed value, then jump to shutdown phase, in the shutdown phase,
Disconnect the power supply signal；If being additionally operable in the range of the 3rd time threshold of setting, the rotating speed of the air engine device is judged
Less than rotating speed is allowed, then shutdown phase is jumped to, in the shutdown phase, disconnects the power supply signal.
5. a kind of air generator numerical control system, it is characterised in that including the sky as described in any one of claim 3 to 4
Gas generator numerical control device.
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