CN106564625A - Proportional electronic pressure reduction system - Google Patents
Proportional electronic pressure reduction system Download PDFInfo
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- CN106564625A CN106564625A CN201610952735.3A CN201610952735A CN106564625A CN 106564625 A CN106564625 A CN 106564625A CN 201610952735 A CN201610952735 A CN 201610952735A CN 106564625 A CN106564625 A CN 106564625A
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- pressure sensor
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- 238000002955 isolation Methods 0.000 claims description 71
- 238000000034 method Methods 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 73
- 230000006837 decompression Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 3
- 239000003380 propellant Substances 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/40—Arrangements or adaptations of propulsion systems
- B64G1/402—Propellant tanks; Feeding propellants
Abstract
The invention relates to a proportional electronic pressure reduction system. The proportional electronic pressure reduction system comprises a high pressure sensor (1), a first gas source on-off self-locking valve (3), a first high pressure isolating self-locking valve (6), a first pressure proportional valve (8), a first low pressure sensor (10), a control unit (13) and the like; and after receiving a target pressure value, the control unit (13) collects the pressure signals of the high pressure sensor (1) and the pressure signals of the first low pressure sensor (10), compares the pressure signals with the target pressure value, opens the first gas source on-off self-locking valve (3) and the first high pressure isolating self-locking valve (6), and calls corresponding closed-loop control algorithms to adjust the opening degree of the first pressure proportional valve (8) in real time, and therefore, the function of electronic pressure reduction can be realized. With the proportional electronic pressure reduction system of the invention adopted, rapid adjustment within a pressure reduction ratio range of 10 to 75 can be realized, and pressure reduction accuracy can be 1% or below, and the size and weight of the system can be significantly decreased, and the reliability of the system can be improved, and the service life of the system can be prolonged.
Description
Technical field
The present invention relates to a kind of ratio electronics depressurized system, it is adaptable to need to carry out high-pressure medium high accuracy decompression output
System, be particularly well-suited to spacecraft propulsion system propellant high accuracy decompression output control.
Background technology
In the current satellite propulsion system of China, the general gas pressure for carrying is all higher, about 15～30MPa, but
On satellite, actually used pressure (goal pressure) typically only has 0～2MPa, use pressure (the target pressure of electric propulsion system
Power) possibly even as little as 0.2MPa.Therefore, in use, reduced pressure treatment need to be carried out to gases at high pressure.What is used at present is
In system, the decompression for generally using mechanical decompressor or bang-bang electronics decompressor to complete gases at high pressure is exported.
Mechanical decompressor presence decompression precision is low, the inherent shortcoming such as Pressure reducing ratio is low, weight is big, short life, it is impossible to meet length
The use demand of term satellite.
Bang-bang electronics decompressor needs larger buffer container so that electronics decompressor volume, weight are larger；And
And limited by the valve switch life-span, it is difficult to meet the life-span of for example full electric propulsion system of the larger propulsion system of propellant handling capacity
With the requirement of work times；Additionally, output pressure fluctuates in " sawtooth " shape, the precision of output pressure is affected.For in different works
There is different vacuum under operation mode than the propulsion system that requires, the decompression of bang-bang electronics is converted to low pressure output from High voltage output
When, need the pressure in pending buffer gas cylinder slowly to release, not only response time is longer, and can waste propellant.
The content of the invention
Present invention solves the technical problem that being：Overcome the deficiencies in the prior art, there is provided a kind of ratio electronics depressurized system,
Have the advantages that big, lightweight high precision, Pressure reducing ratio, life-span length, reliability are high.
The technical scheme is that：A kind of ratio electronics depressurized system, including it is high-pressure pressure sensor (1), first high
Pressure plus valve (2), the first source of the gas break-make latching valve (3), the second source of the gas break-make latching valve (4), the second high pressure add valve (5) and the
One high_voltage isolation latching valve (6), the second high_voltage isolation latching valve (7), first pressure proportioning valve (8), second pressure proportioning valve
(9), the first low-pressure sensor (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12), control
Unit (13)；
The impulse mouth and the first high pressure of high-pressure pressure sensor (1) adds valve (2) outlet port, the first source of the gas break-make certainly
The inlet port of locking-valve (3), the inlet port of the second source of the gas break-make latching valve (4) are connected to external air source, and the first high pressure adds
The inlet port of valve (2) can connect another external air source or closing；
The outlet port of the first source of the gas break-make latching valve (3), the outlet port of the second source of the gas break-make latching valve (4) are connected to
The inlet port of the first high_voltage isolation latching valve (6), the inlet port of the second high_voltage isolation latching valve (7) and the second high pressure add
The outlet port of valve (5), the second high pressure add the inlet port of valve (5) connect another external air source or closing；
The outlet port of the first high_voltage isolation latching valve (6) is connected with the inlet port of first pressure proportioning valve (8), and second
The outlet port of high_voltage isolation latching valve (7) is connected with the entrance point of second pressure proportioning valve (9)；
The outlet port of second pressure proportioning valve (9) and the outlet port of first pressure proportioning valve (8) are connected to the simultaneously
The impulse mouth of one low-pressure sensor (10), the impulse mouth of the second low-pressure sensor (11), the 3rd low pressure sensing
The impulse mouth of device (12)；
Control unit (13) connection high-pressure pressure sensor (1), the first source of the gas break-make latching valve (3), the second source of the gas break-make
Latching valve (4), the first high_voltage isolation latching valve (6), the second high_voltage isolation latching valve (7), first pressure proportioning valve (8), second
Pressure proportioning valve (9), the first low-pressure sensor (10), the second low-pressure sensor (11), the 3rd low pressure sensing
Device (12),
Control unit (13) can gather high-pressure pressure sensor (1), the first low-pressure sensor (10), the second low pressure
The pressure signal that pressure transducer (11), the 3rd low-pressure sensor (12) are exported；
Control unit (13) can also control the first source of the gas break-make latching valve (3), the second source of the gas break-make latching valve (4),
The break-make of one high_voltage isolation latching valve (6), the second high_voltage isolation latching valve (7)；
Control unit (13) can also adjust first pressure proportioning valve (8), the aperture of second pressure proportioning valve (9).
First high pressure adds valve (2), the first source of the gas break-make latching valve (3), the second source of the gas break-make latching valve (4), second high
Pressure plus valve (5) and the first high_voltage isolation latching valve (6), the second high_voltage isolation latching valve (7), first pressure proportioning valve (8), the
Two pressure proportioning valves (9) are initially closed mode.When control unit (13) collects the pressure that high-pressure pressure sensor (1) is exported
During target pressure value P that force signal is received more than control unit (13), the first source of the gas break-make latching valve (3) is opened, open the
One high_voltage isolation latching valve (6), then the first low-pressure sensor of control unit (13) Real-time Collection (10), the second low pressure pressure
The pressure signal that force transducer (11), the 3rd low-pressure sensor (12) are exported, the first low pressure of each moment is sensed
The pressure signal numerical value that device (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12) are exported is picked
After wild average operation, the first pressure value for obtaining obtains first pressure ratio by closed loop control algorithm according to the first pressure value
The controlled quentity controlled variable of example valve (8), adjusts the aperture of first pressure proportioning valve (8) with the controlled quentity controlled variable, until the first pressure value for obtaining is arrived
Up to target pressure value P, the aperture of first pressure proportioning valve (8) is kept.
First high pressure adds valve (2), the first source of the gas break-make latching valve (3), the second source of the gas break-make latching valve (4), second high
Pressure plus valve (5) and the first high_voltage isolation latching valve (6), the second high_voltage isolation latching valve (7), first pressure proportioning valve (8), the
Two pressure proportioning valves (9) are initially closed mode.When the first source of the gas break-make latching valve (3), the first high_voltage isolation latching valve
(6), in first pressure proportioning valve (8), any one breaks down, i.e., uncontrollable opening, then control unit (13) control second
Source of the gas break-make latching valve (4), the second high_voltage isolation latching valve (7) are opened, then the first low pressure of control unit (13) Real-time Collection
The pressure signal that pressure transducer (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12) are exported, will
The first low-pressure sensor of each moment (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12)
After the pressure signal numerical value of output carries out picking wild average operation, the second pressure value for obtaining, according to the second pressure value by closing
Ring control algolithm obtains the controlled quentity controlled variable of second pressure proportioning valve (9), adjusts opening for second pressure proportioning valve (9) with the controlled quentity controlled variable
Degree, until the second pressure value for obtaining reaches target pressure value P, keeps the aperture of second pressure proportioning valve (9).
Pressure signal Y1 that the first low-pressure sensor of control unit (13) Real-time Collection (10) is exported, the second low pressure pressure
The pressure signal Y3 that pressure signal Y2 that force transducer (11) is exported, the 3rd low-pressure sensor (12) are exported, calculates | Y2-
Y1 |, | Y3-Y1 |, | Y2-Y3 |, then compare the size of | Y2-Y1 |, | Y3-Y1 |, | Y2-Y3 |, take minimum modulus value it is corresponding
The pressure value of two pressure signals, and the pressure value of minimum corresponding two pressure signals of modulus value is carried out averagely, to obtain the
One pressure value YL1.
Pressure signal Y1 that the first low-pressure sensor of control unit (13) Real-time Collection (10) is exported, the second low pressure pressure
The pressure signal Y3 that pressure signal Y2 that force transducer (11) is exported, the 3rd low-pressure sensor (12) are exported, calculates | Y2-
Y1 |, | Y3-Y1 |, | Y2-Y3 |, then compare the size of | Y2-Y1 |, | Y3-Y1 |, | Y2-Y3 |, take minimum modulus value it is corresponding
The pressure value of two pressure signals, and the pressure value of minimum corresponding two pressure signals of modulus value is carried out averagely, to obtain the
Two pressure values YL2.
Controlled quentity controlled variable V1 of first pressure proportioning valve (8) is obtained according to first pressure value YL1 by closed loop control algorithm
Method is as follows：
V1=k1* (YL1-P)+b1* △ t* (YL1-P)
In formula, controlling cycles of the △ t for closed loop control gather the pressure letter that the first low-pressure sensor (10) is exported
The pressure that the pressure signal Y2 or the 3rd low-pressure sensor (12) that number Y1 or the second low-pressure sensor (11) are exported is exported
The acquisition time twice of force signal Y3 is poor；K1 is 0～1；B1 is 10～30.
Controlled quentity controlled variable V2 of second pressure proportioning valve (9) is obtained according to second pressure value YL2 by closed loop control algorithm
Method is as follows：
V2=k2* (YL2-P)+b2* △ t* (YL2-P)
In formula, controlling cycles of the △ t for closed loop control gather the output pressure letter of the first low-pressure sensor (10)
The output pressure of the output pressure signal Y2 or the 3rd low-pressure sensor (12) of number Y1 or the second low-pressure sensor (11)
The acquisition time twice of force signal Y3 is poor；K2 is 0～1；B2 is 10～30.
The present invention has following significant advantage compared with prior art：
(1) the decompression precision of system is brought up to the level better than 1% by adoption rate electronics depressurized system of the present invention, bright
Show be higher than mechanical decompressor average 5% precision level and average the 3% of the decompression of bang-bang electronics precision level.
(2) Pressure reducing ratio of " bleed pressure/output pressure " of depressurized system is improve, by the highest of current mechanical decompressor
20 Pressure reducing ratio brings up to the level better than 75；And Pressure reducing ratio has governing speed faster between 10～75.
(3) life-span of depressurized system is improve, in-orbit of mechanical depressurized system was used in the Satellite Orbit Maneuver stage, in-orbit use
Life-span only has 1 year or so；The xenon handling capacity of existing bang-bang electronics depressurized system is not more than 100kg；Ratio electronics subtracts
The in-orbit life-span of pressure system can be by 15 years～18 years, and xenon handling capacity is up to hundreds of kg.
(4) reduce the weight and volume of system, the buffering gas cylinder in bang-bang electronics decompressors at least above
1.5L, weight about 0.6kg, ratio electronics depressurized system need not buffer gas cylinder, be weight and sky that satellite saves preciousness
Between.
Description of the drawings
Fig. 1 is the systematic schematic diagram of the present invention；
Fig. 2 is the fundamental diagram of the present invention；
Fig. 3 is the integrated module design drawing of the present invention.
Specific embodiment
The present invention basic ideas be：A kind of ratio electronics depressurized system, including high-pressure pressure sensor (1), the first gas
Source break-make latching valve (3), the first high_voltage isolation latching valve (6), first pressure proportioning valve (8), the first low-pressure sensor
(10), the part such as control unit (13)；After control unit (13) receives target pressure value, high-pressure pressure sensor (1) is gathered
Pressure signal, the pressure signal of the first low-pressure sensor (10), be compared with target pressure value, open the first source of the gas
Break-make latching valve (3), the first high_voltage isolation latching valve (6), and call corresponding closed loop control algorithm real-time regulation first pressure
The aperture of proportioning valve (8), so as to realize the function of electronics decompression.By the invention it is possible to realize Pressure reducing ratio between 10～75
Quick regulation, reach decompression precision better than 1% level, while substantially reduce system bulk, weight, lift system reliability
The indexs such as degree, lifetime of system.
The present invention a kind of ratio electronics depressurized system include high-pressure pressure sensor (1), the first high pressure add valve (2),
First source of the gas break-make latching valve (3), the second source of the gas break-make latching valve (4), the second high pressure add valve (5), the first high_voltage isolation certainly
Locking-valve (6), the second high_voltage isolation latching valve (7), first pressure proportioning valve (8), second pressure proportioning valve (9), the first low pressure pressure
Force transducer (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12) and control unit (13)；
High-pressure pressure sensor (1) and the first high pressure add valve (2) outlet port while being connected to the first source of the gas break-make
The inlet port of the inlet port of latching valve (3) and the second source of the gas break-make latching valve (4)；First high pressure adds the air inlet of valve (2)
Mouth end can be connected to another external air source or closing.The outlet port of the first source of the gas break-make latching valve (3), the second source of the gas break-make
The outlet port of latching valve (4) is connected to the inlet port of the first high_voltage isolation latching valve (6), the second high_voltage isolation certainly simultaneously
The inlet port and the second high pressure of locking-valve (7) add the outlet port of valve (5)；Second high pressure adds the inlet port of valve (5)
Another external air source or closing can be connected to.
The outlet port of the first high_voltage isolation latching valve (6) is connected with the inlet port of first pressure proportioning valve (8)；Second
The outlet port of high_voltage isolation latching valve (7) is connected with the inlet port of second pressure proportioning valve (9)；First low pressure is sensed
The impulse mouth of device (10), the impulse mouth of the second low-pressure sensor (11), the impulse mouth of the 3rd low-pressure sensor (12)
The outlet port of the outlet port and second pressure proportioning valve (9) of first pressure proportioning valve (8) is connected to simultaneously.
First pressure proportioning valve (8), second pressure proportioning valve (9), the first low-pressure sensor (10), the second low pressure pressure
Force transducer (11), the 3rd low-pressure sensor (12) are connected with control unit；Control unit gathers the first low pressure
Sensor (10), the second low-pressure sensor (11), the pressure signal of the 3rd low-pressure sensor (12), by closed loop control
Algorithm real-time regulation first pressure proportioning valve (8) processed or the aperture of second pressure proportioning valve (9), realize the work(of electronics decompression
Energy.
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of ratio electronics depressurized system of the invention, including high-pressure pressure sensor (1), the first high pressure add
Valve (2), the first source of the gas break-make latching valve (3), the second source of the gas break-make latching valve (4), the second high pressure add valve (5), first high
Pressure isolation latching valve (6), the second high_voltage isolation latching valve (7), first pressure proportioning valve (8), second pressure proportioning valve (9), the
One low-pressure sensor (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12) and control unit
(13)。
In ratio electronics depressurized system, the gas access end of first pressure proportioning valve (8) connects the first high_voltage isolation certainly
Locking-valve (6), second pressure proportioning valve (9) gas access end connect the second high_voltage isolation latching valve (7)；First high_voltage isolation self-locking
Valve (6), the gas access end of the second high_voltage isolation latching valve (7) and the second high pressure add the gas outlet end of valve (5) by pipe
Road connector is connected in parallel；First pressure proportioning valve (8) and second pressure proportioning valve (9) gas outlet end are in parallel, and are connected with
First low-pressure sensor (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12) and low pressure add
Valve (11)；First low-pressure sensor (10), the second low-pressure sensor (11), the 3rd low-pressure sensor
(12), first pressure proportioning valve (8) and second pressure proportioning valve (9) be by being connected to cable with control unit, pressure proportioning valve,
Low-pressure sensor and control unit (13) constitute the core of ratio electronics depressurized system.
High-pressure pressure sensor (1), the first high pressure add valve (2), the first source of the gas break-make latching valve (3), the second source of the gas to lead to
The arrival end of disconnected latching valve (4) is parallel-connected to the downstream of source of the gas on star, the first source of the gas break-make by pipeline and pipeline connecting parts
Latching valve (3), the second source of the gas break-make latching valve (4) gas outlet are connected in parallel, and form the source of the gas with redundant backup function and lead to
Disconnected unit；The gas outlet end of the second source of the gas break-make latching valve (4) be connected in parallel after with the first high_voltage isolation latching valve (6), the
Entrance after two high_voltage isolation latching valves (7) add the entrance of valve (5) to be connected in parallel with the second high pressure is connected, and forms a whole set of high
Precision electronic decompressor systems.
In order to ensure the in-orbit reliably working of high-precision electronic depressurized system, the present invention is in system core portion pressure proportioning valve
With redundancy backup design has been carried out on low-pressure sensor, it is ensured that occur in a pressure proportioning valve and low-pressure sensor
In the case of failure, whole system can also normal work.
Closed loop control fundamental diagrams of the Fig. 2 for high-precision electronic depressurized system.First setting output target pressure value and
Tolerance, control unit (13) gather the first low-pressure sensor (10), the second low-pressure sensor (11) and the 3rd low pressure
The pressure value of pressure transducer (12), carries out picking wild average treatment, and concrete grammar is：Control unit (13) Real-time Collection first is low
Pressure signal Y2 that pressure signal Y1 that pressure pressure sensor (10) is exported, the second low-pressure sensor (11) are exported, the 3rd
The pressure signal Y3 that low-pressure sensor (12) is exported, calculates | Y2-Y1 |, | Y3-Y1 |, | Y2-Y3 |, then compares | Y2-Y1
|, the size of | Y3-Y1 |, | Y2-Y3 |, take the pressure value of corresponding two pressure signals of modulus value of minimum, and to minimum modulus value
The pressure value of corresponding two pressure signals is carried out averagely, obtains first pressure value YL1.Then by pressure value YL1 and setting
Target pressure value P be compared, then the voltage/current controlled quentity controlled variable of pressure proportioning valve is obtained by closed loop control algorithm, is adjusted
The aperture of pressure proportioning valve；The processor continuous service closed loop control algorithm of control unit, until pressure proportioning valve exit
The difference of pressure value and target pressure value is within the scope of tolerance is allowed.
The tool of controlled quentity controlled variable V1 of first pressure proportioning valve (8) is obtained according to first pressure value YL1 by closed loop control algorithm
Body method is as follows：
V1=k1* (YL1-P)+b1* △ t* (YL1-P)
In formula, controlling cycles of the △ t for closed loop control gather the pressure letter that the first low-pressure sensor (10) is exported
The pressure that the pressure signal Y2 or the 3rd low-pressure sensor (12) that number Y1 or the second low-pressure sensor (11) are exported is exported
The acquisition time twice of force signal Y3 is poor；K1 is 0～1；B1 is 10～30.
In order to improve decompression precision, pressure value P 0 of the control unit (13) according to high-pressure pressure sensor (1) is called corresponding
Closed loop control algorithm (the different k1 of correspondence, b1 values) obtaining controlled quentity controlled variable V1 of first pressure proportioning valve (8).
Therefore, ratio electronics depressurized system of the present invention, Pressure reducing ratio 10～75 in a big way between, decompression essence
Degree can bring up to the level better than 1%, hence it is evident that the precision level and bang-bang electronics higher than average the 5% of mechanical decompressor
The precision level of average the 3% of decompression.Meanwhile, the output governing speed of the ratio electronics depressurized system also superior to machinery decompression and
Bang-bang reduces pressure.As proportioning valve is generally in opening in closed loop control process, simply according to goal pressure not
Different with aperture, this compares the bang-bang control in bang-bang decompressions, the life-span of valve greatly improved, also just improves
The life-span of depressurized system.
After the completion of the key component of high-precision electronic depressurized system is implemented, from the convenience of the safety and test of system
Consider, increased high-pressure pressure sensor (1), the first high pressure and add valve (2), the first source of the gas break-make latching valve (3), the second source of the gas
Break-make latching valve (4), the second high pressure add valve (5), the first high_voltage isolation latching valve (6) and the second high_voltage isolation latching valve (7).
High-pressure pressure sensor (1) is monitored for the bleed pressure to using on satellite；First source of the gas break-make latching valve (3),
, for completing the break-make control of satellite source of the gas conveying, the function phase of two valves is same, standby each other for two sources of the gas break-make latching valve (4)
Part；First high_voltage isolation latching valve (6), the second high_voltage isolation latching valve (7) for complete first pressure proportioning valve (8), second
The isolation of pressure proportioning valve (9) and gases at high pressure, prevents gases at high pressure from directly acting on first pressure proportioning valve (8), the second pressure
On power proportioning valve (9), valve is caused passively to be opened so that the first low-pressure sensor (10), the second low-pressure sensor
(11), the 3rd low-pressure sensor (12) is directly communicated with high-pressure air source, causes to damage.First high pressure add valve (2), second
High pressure adds valve (5) and low pressure to add valve (11) to be mainly used in ground experiment and the test of high-precision electronic depressurized system, and first
High pressure adds valve (2) for before satellite launch, being the high-pressure air source filling gases at high pressure on satellite；Second high pressure adds valve
(5) it is mainly used to use as the gas source interface of ratio electronics depressurized system ground test.
Under normal circumstances, the first high pressure adds valve (2), the first source of the gas break-make latching valve (3), the second source of the gas break-make latching valve
(4), the second high pressure adds valve (5) and the first high_voltage isolation latching valve (6), the second high_voltage isolation latching valve (7), first pressure ratio
Example valve (8), second pressure proportioning valve (9) are initially closed mode.When control unit (13) collects high-pressure pressure sensor
(1), during target pressure value P that the pressure signal for exporting is received more than control unit (13), open the first source of the gas break-make latching valve
(3), open the first high_voltage isolation latching valve (6), then the first low-pressure sensor of control unit (13) Real-time Collection (10),
The pressure signal that second low-pressure sensor (11), the 3rd low-pressure sensor (12) are exported, will be low at each moment first
The pressure signal that pressure pressure sensor (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12) are exported
After numerical value carries out picking wild average operation, the first pressure value for obtaining is obtained by closed loop control algorithm according to the first pressure value
The controlled quentity controlled variable of first pressure proportioning valve (8), adjusts the aperture of first pressure proportioning valve (8) with the controlled quentity controlled variable, until obtain the
One pressure value reaches target pressure value P, keeps the aperture of first pressure proportioning valve (8).
Preferred fault detection method is as follows：
When there is the failure of uncontrollable opening in the first source of the gas break-make latching valve (3), then control unit (13) control the
Two sources of the gas break-make latching valve (4), the second high_voltage isolation latching valve (7) are opened, and then control unit (13) Real-time Collection first is low
The pressure signal that pressure pressure sensor (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12) are exported,
Which is carried out to pick after wild average operation, the controlled quentity controlled variable of second pressure proportioning valve (9) is obtained by closed loop control algorithm, is controlled with this
Amount adjusts the aperture of second pressure proportioning valve (9), until the second pressure value for obtaining reaches target pressure value P, keeps second to press
The aperture of power proportioning valve (9).Or control unit (13) controls the second source of the gas break-make latching valve (4), the first high_voltage isolation self-locking
Valve (6) is opened, then the first low-pressure sensor of control unit (13) Real-time Collection (10), the second low-pressure sensor
(11), the pressure signal that the 3rd low-pressure sensor (12) is exported, carries out picking after wild average operation, by closed loop control to which
Algorithm obtains the controlled quentity controlled variable of first pressure proportioning valve (8), adjusts the aperture of first pressure proportioning valve (8) with the controlled quentity controlled variable, until
The first pressure value for obtaining reaches target pressure value P, keeps the aperture of first pressure proportioning valve (8).
When there is the failure of uncontrollable opening in the second source of the gas break-make latching valve (4), then control unit (13) control the
One source of the gas break-make latching valve (3), the first high_voltage isolation latching valve (6) are opened, and then control unit (13) Real-time Collection first is low
The pressure signal that pressure pressure sensor (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12) are exported,
Which is carried out to pick after wild average operation, the controlled quentity controlled variable of first pressure proportioning valve (8) is obtained by closed loop control algorithm, is controlled with this
Amount adjusts the aperture of first pressure proportioning valve (8), until the first pressure value for obtaining reaches target pressure value P, keeps first to press
The aperture of power proportioning valve (8).Or control unit (13) controls the first source of the gas break-make latching valve (3), the second high_voltage isolation self-locking
Valve (7) is opened, then the first low-pressure sensor of control unit (13) Real-time Collection (10), the second low-pressure sensor
(11), the pressure signal that the 3rd low-pressure sensor (12) is exported, carries out picking after wild average operation, by closed loop control to which
Algorithm obtains the controlled quentity controlled variable of second pressure proportioning valve (9), adjusts the aperture of second pressure proportioning valve (9) with the controlled quentity controlled variable, until
The second pressure value for obtaining reaches target pressure value P, keeps the aperture of second pressure proportioning valve (9).
When there is the failure of uncontrollable opening in the first high_voltage isolation latching valve (6), then control unit (13) control the
Two sources of the gas break-make latching valve (4), the second high_voltage isolation latching valve (7) are opened, or the first source of the gas break-make latching valve (3) of control,
Second high_voltage isolation latching valve (7) open, then the first low-pressure sensor of control unit (13) Real-time Collection (10), second
The pressure signal that low-pressure sensor (11), the 3rd low-pressure sensor (12) are exported, after carrying out picking wild average operation, leads to
The controlled quentity controlled variable that closed loop control algorithm obtains second pressure proportioning valve (9) is crossed, and second pressure proportioning valve (9) is adjusted with the controlled quentity controlled variable
Aperture, until the second pressure value for obtaining reaches target pressure value P, keeps the aperture of second pressure proportioning valve (9).
When there is the failure of uncontrollable opening in the second high_voltage isolation latching valve (7), then control unit (13) control the
One source of the gas break-make latching valve (3), the first high_voltage isolation latching valve (6) are opened, or the second source of the gas break-make latching valve (4) of control,
First high_voltage isolation latching valve (6) open, then the first low-pressure sensor of control unit (13) Real-time Collection (10), second
The pressure signal that low-pressure sensor (11), the 3rd low-pressure sensor (12) are exported, after carrying out picking wild average operation, leads to
The controlled quentity controlled variable that closed loop control algorithm obtains first pressure proportioning valve (8) is crossed, and first pressure proportioning valve (8) is adjusted with the controlled quentity controlled variable
Aperture, until the first pressure value for obtaining reaches target pressure value P, keeps the aperture of first pressure proportioning valve (8).
When there is the failure of uncontrollable opening in first pressure proportioning valve (8), then control unit (13) control control the
One source of the gas break-make latching valve (3), the second high_voltage isolation latching valve (7) open, or the second source of the gas break-make latching valve (4), second
High_voltage isolation latching valve (7) is opened, then the first low-pressure sensor of control unit (13) Real-time Collection (10), the second low pressure
The pressure signal that pressure transducer (11), the 3rd low-pressure sensor (12) are exported, after carrying out picking wild average operation, by closing
Ring control algolithm obtains the controlled quentity controlled variable of second pressure proportioning valve (9), adjusts opening for second pressure proportioning valve (9) with the controlled quentity controlled variable
Degree, until the second pressure value for obtaining reaches target pressure value P, keeps the aperture of second pressure proportioning valve (9).
When the failure of uncontrollable opening occurs in second pressure proportioning valve (9), then control unit (13) controls the first gas
Source break-make latching valve (3), the first high_voltage isolation latching valve (6) open, or control the second source of the gas break-make latching valve (4), first
High_voltage isolation latching valve (6) is opened, then the first low-pressure sensor of control unit (13) Real-time Collection (10), the second low pressure
The pressure signal that pressure transducer (11), the 3rd low-pressure sensor (12) are exported, after carrying out picking wild average operation, by closing
Ring control algolithm obtains the controlled quentity controlled variable of second pressure proportioning valve (9), adjusts opening for second pressure proportioning valve (9) with the controlled quentity controlled variable
Degree, until the second pressure value for obtaining reaches target pressure value P, keeps the aperture of second pressure proportioning valve (9).
Therefore, ratio electronics depressurized system of the present invention has higher reliability, ensure that in arbitrary valve
Or low-pressure sensor, when breaking down, whole system can also normal work.
After completion system design, comparative example electronics depressurized system has carried out integrated module design, and Fig. 3 is high precision electro
The integrated module layout of sub- depressurized system, is designed by the integrated module of product, is realized the miniaturization of system and is led to
With change, the installing space of system is reduced, improve the substitutability of system, shorten the lead time of satellite.
According to different applying working conditions, the configuration of high-precision electronic depressurized system proposed by the invention can be carried out in right amount
Increase and decrease, the system configuration being not limited to given by Fig. 1.Pressure proportioning valve therein can also be according to pressure relief ranges and work(
Rate etc. needs to select different types of valve (such as electromagnetic proportional valve, piezoelectric proportional valve, magnetic resistance proportioning valve etc.).
Unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (7)
1. a kind of ratio electronics depressurized system, it is characterised in that：Add valve including high-pressure pressure sensor (1), the first high pressure
(2), the first source of the gas break-make latching valve (3), the second source of the gas break-make latching valve (4), the second high pressure add valve (5) and the first high pressure every
From latching valve (6), the second high_voltage isolation latching valve (7), first pressure proportioning valve (8), second pressure proportioning valve (9), first low
Pressure pressure sensor (10), the second low-pressure sensor (11), the 3rd low-pressure sensor (12), control unit (13)；
The impulse mouth of high-pressure pressure sensor (1), the first high pressure add valve (2) outlet port, the first source of the gas break-make latching valve (3)
Inlet port, the inlet port of the second source of the gas break-make latching valve (4) be connected to external air source, the first high pressure adds valve (2)
Inlet port can connect another external air source or closing；
The outlet port of the first source of the gas break-make latching valve (3), the outlet port of the second source of the gas break-make latching valve (4) are connected to first
The inlet port of high_voltage isolation latching valve (6), the inlet port of the second high_voltage isolation latching valve (7) and the second high pressure add valve
(5) outlet port, the second high pressure add the inlet port of valve (5) connect another external air source or closing；
The outlet port of the first high_voltage isolation latching valve (6) is connected with the inlet port of first pressure proportioning valve (8), the second high pressure
The outlet port of isolation latching valve (7) is connected with the entrance point of second pressure proportioning valve (9)；
It is low that the outlet port of first pressure proportioning valve (8) is connected to first simultaneously with the outlet port of second pressure proportioning valve (9)
The impulse mouth of pressure pressure sensor (10), the impulse mouth of the second low-pressure sensor (11), the 3rd low-pressure sensor
(12) impulse mouth；
Control unit (13) connection high-pressure pressure sensor (1), the first source of the gas break-make latching valve (3), the second source of the gas break-make self-locking
Valve (4), the first high_voltage isolation latching valve (6), the second high_voltage isolation latching valve (7), first pressure proportioning valve (8), second pressure
Proportioning valve (9), the first low-pressure sensor (10), the second low-pressure sensor (11), the 3rd low-pressure sensor
(12)；
Control unit (13) can gather high-pressure pressure sensor (1), the first low-pressure sensor (10), the second low pressure
The pressure signal that sensor (11), the 3rd low-pressure sensor (12) are exported；
Control unit (13) can also control the first source of the gas break-make latching valve (3), the second source of the gas break-make latching valve (4), first high
Pressure isolation latching valve (6), the break-make of the second high_voltage isolation latching valve (7)；
Control unit (13) can also adjust first pressure proportioning valve (8), the aperture of second pressure proportioning valve (9).
2. a kind of ratio electronics depressurized system according to claim 1, it is characterised in that：First high pressure add valve (2),
One source of the gas break-make latching valve (3), the second source of the gas break-make latching valve (4), the second high pressure add valve (5) and the first high_voltage isolation self-locking
Valve (6), the second high_voltage isolation latching valve (7), first pressure proportioning valve (8), second pressure proportioning valve (9) are initially closing shape
State；Receive more than control unit (13) when control unit (13) collects the pressure signal that high-pressure pressure sensor (1) exports
Target pressure value P when, open the first source of the gas break-make latching valve (3), open the first high_voltage isolation latching valve (6), then control
The first low-pressure sensor of unit (13) Real-time Collection (10), the second low-pressure sensor (11), the 3rd low pressure are passed
The pressure signal that sensor (12) is exported, by the first low-pressure sensor of each moment (10), the second low-pressure sensor
(11) after, the pressure signal numerical value that the 3rd low-pressure sensor (12) is exported carries out picking wild average operation, the first pressure for obtaining
Force value, is obtained the controlled quentity controlled variable of first pressure proportioning valve (8) according to the first pressure value, uses the controlled quentity controlled variable by closed loop control algorithm
The aperture of first pressure proportioning valve (8) is adjusted, until the first pressure value for obtaining reaches target pressure value P, first pressure is kept
The aperture of proportioning valve (8).
3. a kind of ratio electronics depressurized system according to claim 1, it is characterised in that：First high pressure add valve (2),
One source of the gas break-make latching valve (3), the second source of the gas break-make latching valve (4), the second high pressure add valve (5) and the first high_voltage isolation self-locking
Valve (6), the second high_voltage isolation latching valve (7), first pressure proportioning valve (8), second pressure proportioning valve (9) are initially closing shape
State；When in the first source of the gas break-make latching valve (3), the first high_voltage isolation latching valve (6), first pressure proportioning valve (8) any one
Break down, i.e., uncontrollable opening, then control unit (13) control the second source of the gas break-make latching valve (4), the second high_voltage isolation
Latching valve (7) is opened, then the first low-pressure sensor of control unit (13) Real-time Collection (10), the second low pressure sensing
The pressure signal that device (11), the 3rd low-pressure sensor (12) are exported, by the first low-pressure sensor of each moment (10),
The pressure signal numerical value that second low-pressure sensor (11), the 3rd low-pressure sensor (12) are exported carries out picking wild average behaviour
After work, the second pressure value for obtaining obtains second pressure proportioning valve (9) by closed loop control algorithm according to the second pressure value
Controlled quentity controlled variable, adjusts the aperture of second pressure proportioning valve (9) with the controlled quentity controlled variable, until the second pressure value for obtaining reaches goal pressure
Value P, keeps the aperture of second pressure proportioning valve (9).
4. a kind of ratio electronics depressurized system according to claim 2, it is characterised in that：It is described to pick wild average operation method
It is as follows：Pressure signal Y1 that the first low-pressure sensor of control unit (13) Real-time Collection (10) is exported, the second low pressure
The pressure signal Y3 that pressure signal Y2 that sensor (11) is exported, the 3rd low-pressure sensor (12) are exported, calculates | Y2-Y1
|, | Y3-Y1 |, | Y2-Y3 |, then compare the size of | Y2-Y1 |, | Y3-Y1 |, | Y2-Y3 |, take minimum modulus value corresponding two
The pressure value of individual pressure signal, and the pressure value to minimum corresponding two pressure signals of modulus value carries out averagely, obtaining first
Pressure value YL1.
5. a kind of ratio electronics depressurized system according to claim 3, it is characterised in that：It is described to pick wild average operation method
It is as follows：Pressure signal Y1 that the first low-pressure sensor of control unit (13) Real-time Collection (10) is exported, the second low pressure
The pressure signal Y3 that pressure signal Y2 that sensor (11) is exported, the 3rd low-pressure sensor (12) are exported, calculates | Y2-Y1
|, | Y3-Y1 |, | Y2-Y3 |, then compare the size of | Y2-Y1 |, | Y3-Y1 |, | Y2-Y3 |, take minimum modulus value corresponding two
The pressure value of individual pressure signal, and the pressure value to minimum corresponding two pressure signals of modulus value carries out averagely, obtaining second
Pressure value YL2.
6. a kind of ratio electronics depressurized system according to Claims 2 or 3, it is characterised in that：According to the first pressure value
The method that YL1 obtains controlled quentity controlled variable V1 of first pressure proportioning valve (8) by closed loop control algorithm is as follows：
V1=k1* (YL1-P)+b1* △ t* (YL1-P)
In formula, △ t are the controlling cycle of closed loop control, that is, gather the pressure signal Y1 that the first low-pressure sensor (10) is exported
Or the second pressure letter that export of the pressure signal Y2 that exports of low-pressure sensor (11) or the 3rd low-pressure sensor (12)
The acquisition time twice of number Y3 is poor；K1 is 0～1；B1 is 10～30.
7. a kind of ratio electronics depressurized system according to Claims 2 or 3, it is characterised in that：According to the second pressure value
The method that YL2 obtains controlled quentity controlled variable V2 of second pressure proportioning valve (9) by closed loop control algorithm is as follows：
V2=k2* (YL2-P)+b2* △ t* (YL2-P)
In formula, △ t are the controlling cycle of closed loop control, that is, gather the output pressure signal Y1 of the first low-pressure sensor (10)
Second low-pressure sensor (11) output pressure signal Y2 or the 3rd low-pressure sensor (12) output pressure letter
The acquisition time twice of number Y3 is poor；K2 is 0～1；B2 is 10～30.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107669464A (en) * | 2017-10-25 | 2018-02-09 | 广东美的安川服务机器人有限公司 | Shock wave atmospheric control and pneumatic shock wave equipment |
| CN107966240A (en) * | 2017-11-24 | 2018-04-27 | 中国空间技术研究院 | A kind of bleed pressure evaluation method based on electronics depressurized system |
| CN108873953A (en) * | 2018-08-28 | 2018-11-23 | 北京控制工程研究所 | A kind of high-precision pressure control method and system based on electromagnetic proportional valve |
| CN109533397A (en) * | 2018-11-02 | 2019-03-29 | 中国空间技术研究院 | A kind of electric propulsion electronics depressurized system design method |
| CN113931817A (en) * | 2021-09-30 | 2022-01-14 | 北京控制工程研究所 | Two-stage pressure reduction device and pressure reduction method for electric propulsion system propellant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07315299A (en) * | 1994-05-27 | 1995-12-05 | Ishikawajima Harima Heavy Ind Co Ltd | Resource feeder for space shuttle |
| WO1996026108A1 (en) * | 1995-02-22 | 1996-08-29 | Centre National D'etudes Spatiales | Device for pressurising a unified two-liquid propulsion subsystem for geostationary satellites |
| CN202418728U (en) * | 2012-02-16 | 2012-09-05 | 北京兰天达汽车清洁燃料技术有限公司 | Electronic pressure reducer |
| CN104456079A (en) * | 2014-11-06 | 2015-03-25 | 北京控制工程研究所 | Electronic decompression system |
-
2016
- 2016-11-02 CN CN201610952735.3A patent/CN106564625B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07315299A (en) * | 1994-05-27 | 1995-12-05 | Ishikawajima Harima Heavy Ind Co Ltd | Resource feeder for space shuttle |
| WO1996026108A1 (en) * | 1995-02-22 | 1996-08-29 | Centre National D'etudes Spatiales | Device for pressurising a unified two-liquid propulsion subsystem for geostationary satellites |
| CN202418728U (en) * | 2012-02-16 | 2012-09-05 | 北京兰天达汽车清洁燃料技术有限公司 | Electronic pressure reducer |
| CN104456079A (en) * | 2014-11-06 | 2015-03-25 | 北京控制工程研究所 | Electronic decompression system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107669464A (en) * | 2017-10-25 | 2018-02-09 | 广东美的安川服务机器人有限公司 | Shock wave atmospheric control and pneumatic shock wave equipment |
| CN107966240A (en) * | 2017-11-24 | 2018-04-27 | 中国空间技术研究院 | A kind of bleed pressure evaluation method based on electronics depressurized system |
| CN107966240B (en) * | 2017-11-24 | 2020-03-24 | 中国空间技术研究院 | Air source pressure estimation method based on electronic pressure reduction system |
| CN108873953A (en) * | 2018-08-28 | 2018-11-23 | 北京控制工程研究所 | A kind of high-precision pressure control method and system based on electromagnetic proportional valve |
| CN108873953B (en) * | 2018-08-28 | 2021-09-07 | 北京控制工程研究所 | High-precision pressure control method and system based on electromagnetic proportional valve |
| CN109533397A (en) * | 2018-11-02 | 2019-03-29 | 中国空间技术研究院 | A kind of electric propulsion electronics depressurized system design method |
| CN113931817A (en) * | 2021-09-30 | 2022-01-14 | 北京控制工程研究所 | Two-stage pressure reduction device and pressure reduction method for electric propulsion system propellant |
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