CN103362790B - A kind of air compressor control system and control method thereof - Google Patents
A kind of air compressor control system and control method thereof Download PDFInfo
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- CN103362790B CN103362790B CN201210095346.5A CN201210095346A CN103362790B CN 103362790 B CN103362790 B CN 103362790B CN 201210095346 A CN201210095346 A CN 201210095346A CN 103362790 B CN103362790 B CN 103362790B
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Abstract
The present invention relates to a kind of air compressor control system and control method thereof, described control system includes: for control system start and stop and the control module of operating, for driving the first power model and the second power model that air compressor machine operates, signal acquisition module, first air compressor machine, second air compressor machine, electromagnetic valve, air accumulator, described signal acquisition module delivers to described control module from the pressure signal that described air accumulator gathers, judgement process is carried out by described control module, the control signal that described control module sends is sent to described first power model and the second power model, the operation of described first air compressor machine is controlled by described first power model, the operation of described second air compressor machine is controlled by the second described power model.This air compressor control system is intelligence control system, improves the accuracy that system controls, improves the safety of system, make control system simpler, run more safe and reliable.
Description
Technical field
The invention belongs to air compressor control field, particularly relate to a kind of air compressor control system and control method thereof.
Background technology
Air compressor is widely used to all trades and professions, to the reliability of air compressor, accuracy, energy-conservation etc. require more and more higher.The air compressor of prior art generally uses pressure switch device to make Stress control within the specific limits, and along with the development of electronics techniques, brakes technology also develops towards deceleration of electrons control direction.For air compressor, being usually and use 1 air compressor of 1 Driven by inverter to be compressed in air accumulator by air incessantly, brakes atmospheric pressure value does not exceeds standard to rely on gas bleeder valve to ensure, makes output pressure control within the specific limits.
The present inventor finds in prior art research and practice: the air compressor of prior art can not set and adjust pressure in the larger context, and Stress control is the most not accurate enough, and the non intelligent control of system, safety is the highest.
Summary of the invention
Control not accurate enough for solving air compressor, the most high technical problem of safety, the invention provides a kind of air compressor control system and control method thereof, improve the safety of control system.
The technical scheme is that
The air compressor control system of the present invention includes: for control system start and stop and the control module of operating, for driving the first power model and the second power model that air compressor machine operates, signal acquisition module, first air compressor machine, second air compressor machine, electromagnetic valve and air accumulator, described signal acquisition module gathers the pressure of described air accumulator and pressure signal is sent to described control module, described control module sends control signal according to described pressure signal and is sent to described first power model and the second power model, described first power model controls described first compressor operation according to described control signal, described second power model controls described second compressor operation according to described control signal, described first air compressor machine and described second air compressor machine are connected with described air accumulator by described electromagnetic valve respectively.
Optionally, described control module includes the first control module and the second control module, described first control module electrically connects with described signal acquisition module and described first power model respectively, and described second control module electrically connects with described signal acquisition module and described second power model respectively.Using to be connected between described first control module with described first power model and have the first photoelectric isolation module, being connected between described second control module with described second power model has the second photoelectric isolation module.
Optionally, described first power model, described second power model and described control module are powered by blood pressure lowering, rectification, the power subsystem of filtering.It is provided with check valve between described electromagnetic valve and described air accumulator.Described signal acquisition module includes pressure transducer, and described pressure transducer is connected with described air accumulator.
Optionally, also include fault detection module and select control unit, described fault detection module is connected with described first control module, described second control module respectively by described selection control unit, and described fault detection module connects described first air compressor machine, the second air compressor machine, the first power model, the second power model, the first photoelectric isolation module, the second photoelectric isolation module.
A kind of control method of air compressor control system, described air compressor control system is the above control system, and described control method includes: for control system start and stop and the control module of operating, gather the pressure of described air accumulator for the first power model driving air compressor machine to operate and the second power model, signal acquisition module, the first air compressor machine, the second air compressor machine, electromagnetic valve and air accumulator, described signal acquisition module and pressure signal P 0 is sent to described control module；Described control module compares according to described pressure signal P 0 and preset value and sends control signal according to comparative result；Described first power model controls the first compressor operation according to described control signal, and described second power model controls the second compressor operation according to described control signal；Close or disconnect described electromagnetic valve.
Optionally, described preset value includes the first preset pressure value P1 and the second preset pressure value P2, P1 < P2, described control method includes: when P0 is < during P1, described first power model controls described first compressor operation according to described control signal, described second power model controls described second compressor operation according to described control signal, closes described electromagnetic valve；As P0 > P2 time, described first power model according to described control signal control described first air compressor machine out of service, described second power model according to described control signal control described second air compressor machine out of service, disconnect described electromagnetic valve.
Optionally, when described fault detection module detects the fault of the first photoelectric isolation module, the first power model or the first air compressor machine, described selection control unit controls described first control module and quits work；When described fault detection module detects the fault of described second photoelectric isolation module, the second power model or the second air compressor machine, described selection control unit controls described second control module and quits work.
The invention have the advantages that can make the operation of whole air compressor control system more safe and reliable by the control system using two power models and two air compressor machines.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of embodiment of air compressor control system of the present invention.
Fig. 2 is the schematic diagram of the second embodiment of air compressor control system of the present invention.
Fig. 3 is the flow chart of a kind of embodiment of the control method of air compressor control system of the present invention.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Below in conjunction with accompanying drawing, the present invention done further detailed description: the advantage that certain part is brought can be described the when of above writing various piece.
nullAs shown in Figure 1，The air compressor control system of one embodiment of the present invention，Including: for the control module 1 of air compressor control system start and stop and operating、For the first power model 2 and the second power model 3 driving air compressor machine to operate、Signal acquisition module 16、First air compressor machine 4、Second air compressor machine 5、Electromagnetic valve 7 and air accumulator 8，Described signal acquisition module 16 gathers the pressure of described air accumulator 8 and pressure signal is sent to described control module 1，Described control module 1 sends control signal according to described pressure signal and is sent to described first power model 2 and the second power model 3，Described first power model 2 controls described first air compressor machine 4 according to described control signal and runs，Described second power model 3 controls described second air compressor machine 5 according to described control signal and runs，Described first air compressor machine 4 and described second air compressor machine 5 are connected with described air accumulator 8 by described electromagnetic valve 7 respectively.
The schematic diagram of the second embodiment that Fig. 2 provides for air compressor control system of the present invention.
In being embodied as, in air compressor control system, described control module 1 includes the first control module 11 and the second control module 12, described first control module 11 electrically connects with described signal acquisition module 16 and described first power model 2 respectively, and described second control module 12 electrically connects with described signal acquisition module 16 and described second power model 3 respectively.
In being embodied as: described first control module 11 and described second control module 12 use DSP(digital signal processor) as control unit, described first power model 2 and described second power mould 3 use IPM(SPM) drive described first air compressor machine 4 and the operation of described second air compressor machine 5 respectively, simplify the complexity of circuit, reduce cost, make whole control system simpler reliably.
At this it should be understood that described first control module 11 worked as in air compressor control system and described second control module 12 use DSP as control unit, when the most described first power model 2 and described second power model 3 use IPM to drive the operation controlling the first air compressor machine 4 and the second air compressor machine 5, being connected between described first control module 11 with described first power model 2 and have the first photoelectric isolation module 9, being connected between described second control module 12 with described second power model 3 has the second photoelectric isolation module 10.
At this it should be understood that described first photoelectric isolation module 9 plays the effect of electrical isolation between described first control module 11 and described first power model 2；Described second photoelectric isolation module 10 plays the effect of electrical isolation between described second control module 12 and described second power model 3.
In being embodied as, described first photoelectric isolation module 9 and described second photoelectric isolation module 10 all use the first power model 2 and the second power model 3 described in rapid light coupling (HCPL4504) isolation drive.
Described first power model the 2, second power model 3 and control module 1 are powered by power subsystem 13, and described power subsystem 13 is unit external power supply blood pressure lowering, rectification, filtering, voltage stabilizing formed.
It is provided with check valve 6, it is ensured that the gas in described air accumulator 8 can not return in described first air compressor machine 4 or described second air compressor machine 5 between described electromagnetic valve 7 and described air accumulator 8.
It should be noted that at this: described signal acquisition module 16 can include pressure transducer, described pressure transducer is connected with described air accumulator 8, for detecting the pressure signal of gas in described air accumulator 8, described pressure signal is sent to described control module 1 and carries out calculation process by described signal acquisition module 16.
nullIn being embodied as，Described air compressor control system may also include fault detection module 15 and selects control unit 14，Described fault detection module 15 is connected with described selection control unit 14，Described selection control unit 14 respectively with described first control module 11、Described second control module 12 is connected，Described fault detection module 15 connects described first air compressor machine 4、Second air compressor machine 5、First power model 2、Second power model 3、First photoelectric isolation module 9、Second photoelectric isolation module 10，Described fault detection module 15 is used for detecting described first air compressor machine 4、Second air compressor machine 5、First power model 2、Second power model 3、First photoelectric isolation module 9、The fault message of the second photoelectric isolation module 10，And described fault message is sent to described selection control unit 14，Described selection control unit 14 judges according to described fault message，Control to stop described first control module 11 or the action of the second control module 12.Increase described fault detection module and can quickly detect the fault-signal of each module, and react through described selection control unit, make system remain properly functioning.
As shown in Figure 3, a kind of a kind of embodiment flow chart of the control method of air compressor control system, with reference to Fig. 1 and Fig. 3, described air compressor control system includes the control module 1 for control system start and stop and operating, for the first power model 2 driving air compressor machine to operate and the second power model 3, signal acquisition module the 16, first air compressor machine the 4, second air compressor machine 5, electromagnetic valve 7 and air accumulator 8, described signal acquisition module 16 gathers the pressure of described air accumulator 8 and pressure signal P 0 is sent to described control module 1；Described control module 1 compares according to described pressure signal P 0 and preset value and sends control signal according to comparative result；Described first power model 2 controls the first air compressor machine 4 according to described control signal and runs, and closes or disconnect described electromagnetic valve 7, and described second power model 3 controls the second air compressor machine 5 according to described control signal and runs, and closes or disconnects described electromagnetic valve 7.
In being embodied as, described air compressor control method: described preset value includes the first preset pressure value P1 and the second preset pressure value P2, P1 < P2, described control method includes: when P0 is < during P1, described first power model 2 controls described first air compressor machine 4 according to described control signal and runs, described second power model 3 controls described second air compressor machine 5 according to described control signal and runs, and closes described electromagnetic valve 7；As P0 > P2 time, described first power model 2 according to described control signal control described first air compressor machine 4 out of service, described second power model 3 according to described control signal control described second air compressor machine 5 out of service, disconnect described electromagnetic valve 7.
It should be understood that predeterminable described first pressure value P 1 of described control module 1 is 0.6MPa, presetting described second pressure value P 2 is 0.8MPa, described signal acquisition module 16 gathers the pressure signal P 0 of described air accumulator 8, and described pressure signal P 0 is sent to described control module 1, described control module 1 is by described pressure signal P 0 and described default pressure value P 1, P2 carries out computing and compares, when P0 is < during P1, 1 computing comparative result of described control module is sent to described first power model and described second power model, sent control signal described first air compressor machine 4 of control by described first power model and described second power model and described second air compressor machine 5 runs；As P0>P1 time, described control module 1 continues to detect described pressure signal P 0, when P0 is<during P2, described first air compressor machine 4 and the second air compressor machine 5 continue to run with, as P0>P2 time, 1 computing comparative result of described control module is sent to described first power model and described second power model, described first power model and described second power model send control signal, and described control signal controls described first air compressor machine 4 and described second air compressor machine 5 is out of service.
It should be understood that described control method also includes when described fault detection module 15 detects the fault of first photoelectric isolation module the 9, first power model 2 or the first air compressor machine 4, described selection control unit 14 selects to control described first control module 11 and quits work；When described fault detection module 15 detects the fault of second photoelectric isolation module the 10, second power model 3 or the second air compressor machine 5, described selection control unit 14 selects to control described second control module 12 and quits work.
The air compressor control system of the present invention improves the safety that system is run, and uses two control modules and two power models to control two air compressor machines respectively, and any one damages the safe operation that can ensure system.As further preferred scheme, system have employed DSP(digital signal processor) as control unit and use IPM(intelligent control module) drive air compressor operation, enormously simplify the complexity of circuit, improve the reliability of circuit simultaneously.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (8)
1. an air compressor control system, it is characterised in that: include for control system start and stop and the control module of operating, use
In the first power model and the second power model, signal acquisition module, the first air compressor machine, the second pneumatics that drive air compressor machine operating
Mechanical, electrical magnet valve and air accumulator, described signal acquisition module gathers the pressure of described air accumulator and pressure signal is sent to described control
Molding block, described control module sends control signal according to described pressure signal and is sent to described first power model and the second merit
Rate module, described first power model controls described first compressor operation, described second power model according to described control signal
Controlling described second compressor operation according to described control signal, described first air compressor machine and described second air compressor machine pass through institute respectively
Stating electromagnetic valve to be connected with described air accumulator, described control module includes the first control module and the second control module, described first control
Molding block electrically connects with described signal acquisition module and described first power model respectively, and described second control module is respectively with described
Signal acquisition module and described second power model electrical connection, described air compressor control system also include fault detection module and
Selecting control unit, described fault detection module is connected with described selection control unit, and described selection control unit is respectively with described
First control module, described second control module are connected, described fault detection module respectively with described first air compressor machine, second empty
Press, the first power model, the second power model connect.
2. air compressor control system as claimed in claim 1, it is characterised in that: described first control module and described first
Connecting between power model and have the first photoelectric isolation module, being connected between described second control module with described second power model has
Second photoelectric isolation module.
3. air compressor control system as claimed in claim 2, it is characterised in that: described fault detection module is respectively with first
Photoelectric isolation module, the second photoelectric isolation module connect.
4. air compressor control system as claimed in claim 1, it is characterised in that: described first power model, the second power
Module and control module are powered by for blood pressure lowering, rectification, the power subsystem of filtering.
5. air compressor control system as claimed in claim 1, it is characterised in that: between described electromagnetic valve and described air accumulator
It is provided with check valve.
6. a control method for air compressor control system, described air compressor control system includes: control module, first
Power model, the second power model, signal acquisition module, the first air compressor machine, the second air compressor machine, electromagnetic valve and air accumulator, its
Being characterised by, described control method includes: described signal acquisition module gathers the pressure of described air accumulator and by pressure signal P 0
It is sent to described control module；Described control module is according to described pressure signal P 0 and preset value compares and according to comparing knot
Fruit sends control signal；Described first power model controls the first compressor operation according to described control signal, closes or disconnects institute
Stating electromagnetic valve, described second power model controls the second compressor operation according to described control signal, closes or disconnects described electromagnetism
Valve；
Described control module includes the first control module and the second control module；
Described air compressor control system also includes fault detection module and selects control unit, and described control method also includes when described
When fault detection module detects the fault of the first power model or the first air compressor machine, described selection control unit controls described the
One control module quits work；When described fault detection module detects the fault of the second power model or the second air compressor machine,
Described control unit controls described second control module and quits work.
Control method the most according to claim 6, it is characterised in that: described preset value includes the first preset pressure value P1 and
Two preset pressure value P2, P1 < P2, described control method includes: as P0, < during P1, described first power model is according to described
Control signal controls described first compressor operation, and described second power model controls described second pneumatics according to described control signal
Machine runs, and closes described electromagnetic valve；As P0 > P2 time, described first power model controls described the according to described control signal
One air compressor machine is out of service, and it is out of service that described second power model controls described second air compressor machine according to described control signal, disconnected
Drive described electromagnetic valve.
Control method the most according to claim 7, it is characterised in that: described control method also includes when described fault detect mould
When block detects the first photoelectric isolation module fault, described selection control unit controls described first control module and quits work；When
When described fault detection module detects the second photoelectric isolation module fault, described selection control unit controls described second and controls mould
Block quits work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210095346.5A CN103362790B (en) | 2012-04-01 | 2012-04-01 | A kind of air compressor control system and control method thereof |
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| CN201210095346.5A CN103362790B (en) | 2012-04-01 | 2012-04-01 | A kind of air compressor control system and control method thereof |
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| CN103362790B true CN103362790B (en) | 2016-12-14 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103727012A (en) * | 2013-12-04 | 2014-04-16 | 山东金阳矿业集团有限公司 | Air compressor with linkage operation controlled |
| CN109751243B (en) * | 2019-03-21 | 2020-04-14 | 丰电科技集团股份有限公司 | Energy-conserving oil spout screw air compressor control system |
| CN114517784B (en) * | 2020-11-19 | 2023-03-14 | 比亚迪股份有限公司 | Air compressor control system and method and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH07286584A (en) * | 1994-04-19 | 1995-10-31 | Hitachi Ltd | Inverter-driven screw compressor |
| JP3547314B2 (en) * | 1998-06-02 | 2004-07-28 | 株式会社日立産機システム | Compressed air production equipment |
| JP3729648B2 (en) * | 1998-07-21 | 2005-12-21 | 株式会社日立製作所 | Control device and control method for air compressor |
| CN201013578Y (en) * | 2006-12-12 | 2008-01-30 | 青岛地恩地机电科技股份有限公司 | Air compressor and controlling mechanism |
| CN101514698A (en) * | 2009-02-27 | 2009-08-26 | 南京昱天高新能源科技发展有限公司 | Intelligent energy saving control system of air compressor |
| CN201615053U (en) * | 2009-12-09 | 2010-10-27 | 湖北兴瑞化工有限公司 | Automatic running air compressor group assorted according to working conditions |
| CN201851323U (en) * | 2010-08-18 | 2011-06-01 | 重庆建工住宅建设有限公司 | Air compressor linkage control system |
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