CN104734311B - Compressor function control circuit and control method and centrifugal water chilling unit - Google Patents
Compressor function control circuit and control method and centrifugal water chilling unit Download PDFInfo
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- CN104734311B CN104734311B CN201310714476.7A CN201310714476A CN104734311B CN 104734311 B CN104734311 B CN 104734311B CN 201310714476 A CN201310714476 A CN 201310714476A CN 104734311 B CN104734311 B CN 104734311B
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- 238000000034 method Methods 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 38
- 230000005611 electricity Effects 0.000 claims description 21
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000004378 air conditioning Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 12
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 6
- 238000004804 winding Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a compressor energy control circuit, a control method and a centrifugal water chilling unit. Wherein, compressor energy control circuit includes: the rectifying circuit comprises a direct current side and an alternating current side, wherein the alternating current side of the rectifying circuit is connected with the motor of the compressor and used for converting alternating current generated by motor inversion into direct current and outputting the direct current through the direct current side of the rectifying circuit; and the charging loop is connected with the direct current side of the rectifying circuit and used for storing the direct current output by the direct current side of the rectifying circuit. The invention achieves the effect of reducing the waste of energy in the air conditioner.
Description
Technical field
The present invention relates to air-conditioner field, in particular to a kind of compressor energy steering circuit and control method and
Centrifugal refrigerating machines.
Background technology
Usually, in air-conditioner, all of consuming parts are required to be powered by civil power, such as the pressure in air-conditioner
Contracting machine, blower fan even load, the power supply of these consuming parts is powered by utility grid, leads to the power consumption of air-conditioner very
Greatly.Inventor finds, in air-conditioner, compressor shutdown relies on inertia to stop slowly, the energy during compressor shutdown
Total loss is fallen, and there is the waste of energy.
There is energy dissipation for air-conditioner in prior art, not yet propose effective solution at present.
Content of the invention
Present invention is primarily targeted at providing a kind of compressor energy steering circuit and control method and centrifugal cold water
Unit, to solve the problems, such as that in prior art, air-conditioner has energy dissipation.
To achieve these goals, according to an aspect of the invention, it is provided a kind of compressor energy steering circuit.Root
Compressor energy steering circuit according to the present invention includes：Rectification circuit, this rectification circuit includes DC side and AC, rectified current
The AC on road is connected with the motor of compressor, and the AC conversion for producing motor reversal is direct current, and passes through
The DC side output of rectification circuit；And charge circuit, it is connected with the DC side of rectification circuit, for storing rectification circuit
The direct current of DC side output.
Further, charge circuit includes：Battery, battery distinguishes phase with the DC side of rectification circuit and consuming parts
Connect, provided electric energy for storing to the direct current of DC side and to consuming parts, wherein, consuming parts are compressor institute
The consuming parts of the air-conditioner at place；And relay, the contact of relay be connected to rectification circuit AC and battery it
Between.
Further, consuming parts are indicator lamp.
Further, compressor energy steering circuit also includes：Filter capacitor, filter capacitor is connected to the straight of rectification circuit
Stream side, for being filtered to the direct current that DC side exports.
Further, rectification circuit is the inversion unit in the frequency converter of compressor.
To achieve these goals, according to a further aspect in the invention, there is provided a kind of centrifugal refrigerating machines, this centrifugation
Formula handpiece Water Chilling Units include above-mentioned compressor energy steering circuit.
To achieve these goals, according to a further aspect in the invention, there is provided a kind of compressor energy control method.Pressure
Contracting function amount control method is used for the energy of compressor is controlled, and this compressor energy control method includes：Obtain compression
The alternating current that the motor reversal of machine produces；AC conversion is direct current；And storage direct current.
Further, by compressor energy steering circuit, the energy of compressor is controlled, wherein,
Compressor energy steering circuit includes：Rectification circuit, rectification circuit includes DC side and AC, rectification circuit
AC is connected with the motor of compressor, and the AC conversion for producing motor reversal is direct current, and passes through rectification
The DC side output of circuit；And charge circuit, it is connected with the DC side of rectification circuit, for storing the direct current of rectification circuit
The direct current of side output,
Wherein, AC conversion is included for direct current：Receive the feedback signal of motor reversal in compressor；Based on motor
The feedback signal of reversion sends instruction to connect charge circuit；And by connect after charge circuit will be anti-for motor in compressor
Raw AC conversion of changing the line of production is direct current.
Further, before the alternating current that the motor reversal obtaining compressor produces, compressor energy control method is also
Including；Receive the feedback signal of compressor shutdown；Based on the feedback signal of compressor shutdown, the confession of compressor is electrically cut off；And
Read the time of compressor shutdown motor reversal in compressor.
Further, while reading compressor shutdown time of motor reversal in compressor, compressor energy control
Method processed also includes：Send control instruction to the components and parts needing electric discharge, control instruction is used for controlling the components and parts needing electric discharge
Discharged；And control the components and parts needing electric discharge to be discharged based on control instruction.
Further, storage direct current includes：After charge circuit stores the AC conversion that motor reversal produces
Direct current, wherein, when rotor stops operating in motor, receives the feedback signal that in motor, rotor stops operating；And be based on
The feedback signal that in described motor, rotor stops operating sends instruction to cut off charge circuit.
Further, charge circuit includes battery, and battery distinguishes phase with the DC side of rectification circuit and consuming parts
Connect, provided electric energy for storing to the direct current of DC side and to consuming parts, wherein, consuming parts are compressor institute
Place air-conditioner consuming parts, wherein, by charge circuit store motor reversal produce AC conversion after direct current
Including：Direct current after the AC conversion that motor reversal is produced is electronically stored in battery, after cut-out charge circuit, pressure
Contracting function amount control method includes：Starting storage battery is powered to consuming parts；When the electric energy of battery is less than given threshold, from
Battery switches to civil power to power to consuming parts.
By the present invention, using the compressor energy steering circuit including rectification circuit and charge circuit, by compression
The DC side of machine rectification circuit connects charge circuit so that when compressor shutdown after, straight to the motor reversal generation of compressor
Stream electricity is stored, and uses in order to other consuming parts for the air-conditioner residing for compressor, thus solving existing skill
In art there is energy dissipation in air-conditioner, has reached the effect reducing the waste of energy in air-conditioner.
Brief description
The accompanying drawing constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of compressor energy steering circuit according to embodiments of the present invention；
Fig. 2 is the schematic diagram of a kind of preferred compressor energy steering circuit according to embodiments of the present invention；
Fig. 3 is the flow chart of compressor energy control method according to a first embodiment of the present invention；
Fig. 4 is the flow chart of compressor energy control method according to a second embodiment of the present invention；And
Fig. 5 is the flow chart of compressor energy control method according to a third embodiment of the present invention.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Mutually combine.To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention it is clear that described embodiment is only
The embodiment of a present invention part, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of not making creative work, all should belong to the model of present invention protection
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that such use
Data can exchange in the appropriate case, so that embodiments of the invention described herein.Additionally, term " inclusion " and " tool
Have " and their any deformation it is intended that covering non-exclusive comprising, for example, contain series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include unclear
Listing to Chu or for these processes, method, product or the intrinsic other steps of equipment or unit.
Embodiments provide a kind of compressor energy steering circuit.
Fig. 1 is the schematic diagram of compressor energy steering circuit according to a first embodiment of the present invention.As shown in figure 1, this pressure
Contracting function amount control circuit includes rectification circuit 1 and charge circuit 2.
Rectification circuit 1 includes DC side 12 and AC 11, the motor M phase of the AC 11 of rectification circuit 1 and compressor
Connect, the AC conversion for producing motor M reversion is direct current, and is exported by the DC side 12 of rectification circuit 1.Its
In, compressor can be centrifugal compressor, and motor M reversion may refer to the rotor reversion in motor M, when compressor normal work
When, the rotor in motor M rotates forward, and after compressor shutdown, compressor runs out of steam, and the cold media gas of high pressure flow backwards impeller
Reversion, the rotor in impeller drive motor is by being just changed into reversion.Because powerful air-flow drives so that after compressor shutdown,
Rotor in motor M stops rotating forward quickly, and is inverted by air-flow drive, and after the air pressure balance of two ends, motor M stops turning
Dynamic.
Specifically, during air-conditioner normal work, can be to be powered or by photovoltaic by the civil power of AC network
The direct current of power station output is powered, and can also be and is jointly powered by civil power and photovoltaic plant.When air-conditioner uses alternating current
The civil power of net is powered, and first can carry out being rectified into direct current to civil power by frequency converter, then will be inverse for the direct current after rectification
Become the alternating current of voltage needed for compressor operating and frequency-adjustable, in this course, the rectified current of the embodiment of the present invention
Road 1 can be used for carrying out inversion process to the direct current behind commercial power rectification, and that is, the rectification circuit 1 in the present embodiment can be compression
Inversion unit during machine normal work, in frequency converter.After compressor shutdown, the motor M reversion of compressor, due to rotor reversion
When can induce electromotive force so that motor is in generating state in stator winding, send alternating current, this alternating current enter over commutation electricity
Road 1 carries out rectification, is converted into direct current, exports from the DC side 12 of rectification circuit 1.As can be seen that the embodiment of the present invention is whole
Current circuit 1, in compressor normal work, can use as inverter circuit, after compressor shutdown, can be used as rectified current
Road uses.When air-conditioner is powered using the direct current of photovoltaic plant, can directly the direct current of photovoltaic plant be passed through
Rectification circuit 1 inversion becomes the alternating current of voltage needed for compressor operating and changeable frequency, and supply compressor uses.Certainly,
The rectification circuit 1 of the embodiment of the present invention can also be the electricity being served only for the reversion of compressor shutdown rear motor is produced of other connection
The rectification circuit of rectification can be carried out.
After compressor shutdown, motor M inverts, and motor M is in generating state, by the exchange producing motor M reversion
Electricity is converted into direct current and is stored, it is possible to reduce the waste of energy.
Charge circuit 2 is connected with the DC side 12 of rectification circuit 1, and the DC side 12 for storing rectification circuit 1 exports
Direct current.After compressor shutdown, motor M inverts, and can connect charge circuit 2 so that charge circuit 2 and rectification circuit 1
Form path, thus the direct current that the DC side 12 of rectification circuit 1 is exported is stored.Wherein, charge circuit can be bag
Circuit containing battery, is stored the direct current that the DC side 12 of rectification circuit 1 exports in battery by charge circuit.
Wherein, the electric energy of storage can be used for other consuming parts use supplying the air-conditioner residing for compressor, such as air-conditioner
Indicator lamp etc.
According to embodiments of the present invention, charge circuit is connected so that working as compression by the DC side in compressor rectification circuit
After machine is shut down, the direct current of the motor reversal generation of compressor is stored, in order to for the air-conditioner residing for compressor
Other consuming parts use, thus solving the problems, such as that in prior art, air-conditioner has energy dissipation, reached minimizing empty
Adjust the effect of the waste of energy in device.
As shown in Fig. 2 rectification circuit can be three-phase PWM（Pulse width modulation）Rectification circuit or intelligent work(
Rate module, wherein, rectification circuit includes IGBT（Insulated Gate Bipolar Transistor, insulate bipolar transistor
Pipe）Pipe V1, V2, V3, V4, V5 and V6, each IGBT pipe correspondingly one diode of reversal connection, by controlling six IGBT pipes
Grid, it is possible to achieve the rectified action to alternating current.Three terminals A, B and C of motor M are connected respectively to rectification circuit
AC.
Preferably, charge circuit includes battery S and relay.The DC side of battery S and rectification circuit and electricity consumption portion
Part is respectively connected with, as shown in Fig. 2 the two ends of battery S are connected to P terminals and the N wiring of rectification circuit DC side
End.This battery S is used for the direct current of DC side being stored and providing electric energy to consuming parts, and wherein, consuming parts are
The consuming parts of the air-conditioner residing for compressor, consuming parts can be the consuming parts such as such as indicator lamp.The contact of relay
K1 is connected between the AC of rectification circuit and battery S.
Motor M can be permagnetic synchronous motor, and wherein rotor is permanent magnet, therefore when the rotor is turning, will be in stator
Winding induces electromotive force.After compressor shutdown, driven by impeller, the rotor in motor M can exist anti-by being just changed into
The process turning, in rotor Umklapp process, motor M is in generating state, now can make contact K1 by control relay
Closure, to connect charge circuit, output control signal controls the AC rectification that rectification circuit produces to motor M reversion to become simultaneously
Direct current, is stored in battery S.
According to embodiments of the present invention, in motor reversal, by the contact closure of control relay so that charge circuit quilt
Connect, the alternating current that motor reversal produces becomes direct current by rectifier circuit rectifies, is stored in battery, thus avoiding
The energy dissipation of compressor.
It is further preferred that consuming parts are indicator lamp.This indicator lamp can be used for as indicator lamp in air-conditioner
Light emitting diode.After compressor shutdown, the electric energy that motor reversal produces not is very sufficient, by this back electrical energy to city
The electrical network of electricity is simultaneously uneconomical, can be used for supplying the indicator lamp in air-conditioner by the electric energy of storage, be that the indicator lamp of air-conditioner carries
For electric energy.As shown in Fig. 2 circuit includes indicator lamp L1, L2 and L3, indicator lamp L1, L2 and L3 may each be using luminous two
The indicator lamp of pole pipe.
According to embodiments of the present invention, the electric energy by producing motor reversal is stored, the indicator lamp of supply air-conditioner,
So that the indicator lamp such as light emitting diode of air-conditioner does not need the electric energy using civil power, reduce the disappearing of electric energy of air-conditioner
Consumption.
As shown in Fig. 2 compressor energy steering circuit also includes filter capacitor C1, this filter capacitor C1 is connected to rectified current
The DC side on road, for being filtered to the direct current that DC side exports.Specifically, the two ends of filter capacitor C1 are connected to
The P terminals of rectification circuit DC side and N terminals.When the alternating current that motor M reversion produces becomes direct current through rectification circuit
Afterwards, charge to battery S after filter capacitor filters C1, thus the direct current after rectification is electronically stored in battery.
Preferably, the rectification circuit in the embodiment of the present invention is the inversion unit in the frequency converter of compressor, works as compressor
After shutdown, the AC conversion being produced motor reversal by the inversion unit in frequency converter is direct current, and by charging back
Road is stored, thus the energy that motor reversal is produced is converted and stores.
According to embodiments of the present invention, by using the inversion unit in frequency converter as energy steering circuit rectified current
Road, from without increasing extra rectification list air-conditioner set, you can completes the energy after compressor shutdown to be carried out turn
Change and store.
The embodiment of the present invention additionally provides a kind of centrifugal refrigerating machines, and this centrifugal refrigerating machines includes the present invention and implements
The compressor energy steering circuit providing in example.By using the embodiment of the present invention compressor energy steering circuit so that from
Core type handpiece Water Chilling Units can be by after compressor shutdown, and the electric energy that motor reversal produces is stored and utilizes, thus decrease from
The energy dissipation of core type handpiece Water Chilling Units, simultaneously by being used to the electric energy that motor reversal produces, reduces centrifugal cold water
The power consumption of unit.
The embodiment of the present invention additionally provides a kind of compressor energy control method.The method may operate on air-conditioner.
It should be noted that the compression that the compressor energy control method of the embodiment of the present invention can be provided by the embodiment of the present invention
Controlling the energy of compressor, the compressor energy steering circuit of the embodiment of the present invention can also be according to this for function amount control circuit
The energy to control compressor for the compressor energy control method of inventive embodiments.Certainly, the compression function of the embodiment of the present invention
Amount control method can be also used for the centrifugal refrigerating machines of the embodiment of the present invention, the centrifugal refrigerating machines of the embodiment of the present invention
The compressor energy control method of the embodiment of the present invention can also be adopted to carry out energy hole.
Fig. 3 is the flow chart of the ENERGY METHOD of compressor according to a first embodiment of the present invention.The compressor of this embodiment
Energy control method can be used for the energy of compressor is controlled.As shown in figure 3, the ENERGY METHOD of this compressor includes walking
Suddenly as follows：
Step S101, obtains the alternating current that the motor reversal of compressor produces.
Compressor can be photovoltaic centrifugal compressor, and motor reversal may refer to the rotor reversion in motor, works as compressor
During normal work, the rotor in motor rotates forward, and after compressor shutdown, compressor runs out of steam, and the cold media gas of high pressure flow backwards
Impeller inverts, and the rotor in impeller drive motor is by being just changed into reversion.Because powerful air-flow drives so that compressor
After shutdown, the rotor in motor stops rotating forward quickly, and is inverted by air-flow drive, after the air pressure balance of two ends, motor
Stop operating.During motor reversal, due to electromotive force can be induced so that motor is in stator winding when rotor inverts
Generating state, sends alternating current.Obtain the alternating current that motor reversal produces, in order to store after being converted this alternating current,
Avoid the waste of energy.
Step S102, AC conversion is direct current.
After the alternating current that the motor reversal obtaining compressor produces, the AC conversion getting can be direct current
Electricity.The rectification circuit in the compressor energy steering circuit of the embodiment of the present invention can be adopted to be direct current by AC conversion,
Can also be AC conversion motor reversal being produced using other rectification circuits be direct current.
Step S103, stores direct current.
AC conversion is being direct current, the direct current after conversion can stored.Can using battery to conversion after
Direct current stored, thus avoiding the waste of energy.For the electric energy of storage, can be used for the electricity consumption portion in air-conditioner
Part is powered, thus reducing the consumption to civil power.
According to embodiments of the present invention, by obtaining the alternating current that compressor reverse rotation produces, and this AC conversion is straight
Stream electricity storage, thus avoiding the waste of electric energy produced by compressor reverse rotation, solving air-conditioner in prior art and there is energy
The problem that amount wastes, has reached the effect reducing the waste of energy in air-conditioner.
Fig. 4 is the flow chart of compressor energy control method according to a second embodiment of the present invention.The compression of this embodiment
Function amount control method can be a kind of preferred embodiment of the compressor energy control method of above-described embodiment.This embodiment
Compressor energy control method by compressor energy steering circuit, the energy of compressor can be controlled, wherein, pressure
Contracting function amount control circuit includes rectification circuit and charge circuit.
Rectification circuit includes DC side and AC, and the AC of this rectification circuit is connected with the motor of compressor, uses
It is direct current in the AC conversion producing motor reversal, and by the DC side output of rectification circuit.Charge circuit with whole
The DC side of current circuit is connected, the direct current that the DC side for storing rectification circuit exports.
As shown in figure 4, this compressor energy control method to include step as follows：
Step S201, obtains the alternating current that the motor reversal of compressor produces.
Compressor can be photovoltaic centrifugal compressor, and motor reversal may refer to the rotor reversion in motor, works as compressor
During normal work, rotor in motor rotates forward, and after compressor shutdown, is driven by impeller, the rotor in motor can exist by
Just it is being changed into the process of reversion.Because powerful air-flow drives so that after compressor shutdown, the rotor in motor just stops quickly
Turn, and inverted by air-flow drive, after the air pressure balance of two ends, motor stalls.During motor reversal, due to
Electromotive force can be induced so that motor is in generating state in stator winding during rotor reversion, send alternating current.Obtain motor anti-
Change the line of production raw alternating current, in order to store after being converted this alternating current, it is to avoid the waste of energy.
Step S202, receives the feedback signal of motor reversal in compressor.
Detector can be previously provided with the compressor, when the motor reversal in compressor, can be to main control unit
Send the feedback signal of motor reversal, wherein main control unit can be digital signal processor（DSP）, for receiving from compressor
Return the feedback signal of motor reversal, to process to this signal.
Step S203, sends instruction to connect charge circuit based on the feedback signal of motor reversal.
After the feedback signal of motor reversal in receiving compressor, control is sent based on the feedback signal of this motor reversal
The control instruction that charge circuit is connected, to connect charge circuit.Wherein, charge circuit can adopt the compression of the embodiment of the present invention
Charge circuit in function amount control circuit.The instruction sending can be the control instruction that main control unit sends, this control instruction
Could be for controlling the control instruction of the relay in charge circuit.Control the relay in charge circuit by sending instruction
Contact closure so that charge circuit connect.
Step S204, the AC conversion that motor reversal in compressor produces is direct current by the charge circuit after connecting
Electricity.
So that rectification circuit forms path with charge circuit after controlling connection charge circuit.When rectification circuit with fill
After The electric loop forms path, the alternating current that in compressor, motor reversal produces, through rectifier circuit rectifies, forms direct current, then
Direct current can be stored by charge circuit, thus the AC conversion that motor reversal in compressor is produced is direct current
Electricity.
Step S205, stores direct current.
AC conversion is being direct current, the direct current after conversion can stored.Can using battery to conversion after
Direct current stored, thus avoiding the waste of energy.For the electric energy of storage, can be used for the electricity consumption portion in air-conditioner
Part is powered, thus reducing the consumption to civil power.
According to embodiments of the present invention, the feedback signal of motor reversal in compressor is received by main control unit, and based on this
The feedback signal of motor reversal sends instruction and controls connection charge circuit, thus realizing the friendship producing motor reversal in compressor
Stream electricity is converted into direct current, in this course it is not necessary to increase any auxiliary equipment in air-conditioner, defeated by main control unit
Go out control can complete AC conversion is direct current.
Preferably, before step S201, compressor energy control method is further comprising the steps of：
The first step, receives the feedback signal of compressor shutdown.
In compressor shutdown moment, by detector, the signal of the compressor shutdown detecting can be stopped as compressor
The feedback signal of machine is sent to main control unit, and main control unit can receive the feedback signal of this compressor shutdown.Main control unit connects
After receiving the feedback signal of compressor shutdown, can judge that compressor stops work based on the feedback signal of this compressor shutdown
Make.
The confession of compressor is electrically cut off by second step based on the feedback signal of compressor shutdown.
After compressor shutdown, driven by impeller, the rotor in motor can exist by the process being just changed into reversion.
Compressor after shutdown does not need to power, and therefore main control unit can be sent out after the feedback signal receiving compressor shutdown
Go out control signal, the confession of compressor is electrically cut off.Wherein, when air-conditioner is powered by the AC network of civil power, can be by master
Control unit sends control instruction to the inversion module in frequency converter, to cut off inversion module, thus the confession of compressor is electrically cut off,
Reservation rectifier works independently, and this rectifier can be the rectification circuit in the above embodiment of the present invention.
3rd step, reads the time of compressor shutdown motor reversal in compressor.
After compressor shutdown, rotor in the motor of compressor still keeps rotating forward due to inertia, but due to compression
Powerful air-flow in machine, so that rotor rotating forward stops quickly, starts to invert, reads compressor shutdown motor reversal in compressor
Time, in order to be calculated the time being generated electricity.When the motor reversal of compressor, motor can be sent to main control unit
The feedback signal of reversion.
According to embodiments of the present invention, powered by cut-out compressor after compressor shutdown, and read compressor shutdown and arrive
In compressor the time of motor reversal such that it is able to when avoiding for the motor of compressor being in generating state, the electric energy sending with
The electric energy conflict of electrical network.
Preferably, while reading compressor shutdown time of motor reversal in compressor, compressor energy hole
Method is further comprising the steps of：
Step 1, sends control instruction to the components and parts needing electric discharge, and this control instruction is used for controlling the first device needing electric discharge
Part is discharged.
Main control unit sends control instruction to the components and parts needing electric discharge, wherein it is desired to the components and parts of electric discharge can be become
Components and parts in frequency device, such as switching tube and filter capacitor etc. contain components and parts inductively or capacitively, and control instruction is for controlling
System needs the instruction that the components and parts of electric discharge are discharged.
Step 2, controls the components and parts needing electric discharge to be discharged based on control instruction.
After receiving this control instruction, the components and parts needing electric discharge are controlled to carry out of short duration electric discharge based on this control instruction.
It should be noted that carrying out discharging the signal that can return electric discharge end to master control list in the components and parts needing electric discharge
Unit, main control unit is also based on the signal that this electric discharge terminates and sends instruction and control connecting charge circuit.
According to embodiments of the present invention, sending in control instruction control compressor needs the components and parts discharging to be discharged, right
The electric energy of residual or electrostatic in the components and parts of electric discharge is needed to carry out discharge process, thus after improve compressor shutdown, motor
Security in reversion power generation process.
Fig. 5 is the flow chart of compressor energy control method according to a third embodiment of the present invention.The compression of this embodiment
Function amount control method can be a kind of preferred embodiment of the compressor energy control method of above-described embodiment.As Fig. 5 institute
Show, the compressor energy control method of this embodiment comprises the following steps,
Step S301, obtains the alternating current that the motor reversal of compressor produces.
Compressor can be photovoltaic centrifugal compressor, and motor reversal may refer to the rotor reversion in motor, works as compressor
During normal work, rotor in motor rotates forward, and after compressor shutdown, is driven by impeller, the rotor in motor can exist by
Just it is being changed into the process of reversion.Because powerful air-flow drives so that after compressor shutdown, the rotor in motor just stops quickly
Turn, and inverted by air-flow drive, after the air pressure balance of two ends, motor stalls.During motor reversal, due to
Electromotive force can be induced so that motor is in generating state in stator winding during rotor reversion, send alternating current.Obtain motor anti-
Change the line of production raw alternating current, in order to store after being converted this alternating current, it is to avoid the waste of energy.
Step S302, receives the feedback signal of motor reversal in compressor.
Detector can be previously provided with the compressor, when the motor reversal in compressor, can be to main control unit
Send the feedback signal of motor reversal, wherein main control unit can be digital signal processor（DSP）, for receiving from compressor
Return the feedback signal of motor reversal, to process to this signal.
Step S303, sends instruction to connect charge circuit based on the feedback signal of motor reversal.
After the feedback signal of motor reversal in receiving compressor, control is sent based on the feedback signal of this motor reversal
The control instruction that charge circuit is connected, to connect charge circuit.Wherein, charge circuit can adopt the compression of the embodiment of the present invention
Charge circuit in function amount control circuit.The instruction sending can be the control instruction that main control unit sends, this control instruction
Could be for controlling the control instruction of the relay in charge circuit.Control the relay in charge circuit by sending instruction
Contact closure so that charge circuit connect.
Step S304, the AC conversion that motor reversal in compressor produces is direct current by the charge circuit after connecting
Electricity.
So that rectification circuit forms path with charge circuit after controlling connection charge circuit.When rectification circuit with fill
After The electric loop forms path, the alternating current that in compressor, motor reversal produces, through rectifier circuit rectifies, forms direct current, then
Direct current can be stored by charge circuit, thus the AC conversion that motor reversal in compressor is produced is direct current
Electricity.
Step S305, the direct current after charge circuit stores the AC conversion that motor reversal produces.
After the AC conversion producing motor reversal is direct current, accumulator can be set in charge circuit
Part, such as battery etc., this direct current is stored by charge circuit.
Step S306, when rotor stops operating in motor, receives the feedback signal that in motor, rotor stops operating.
When rotor stops operating in motor, show that electric power generation terminates, now can send in motor to main control unit
The feedback signal that rotor stops operating, after main control unit receives this feedback signal, is processed accordingly, is cut in order to control
Disconnected charge circuit.
Step S307, sends instruction to cut off charge circuit based on the feedback signal that rotor in motor stops operating.
After the feedback signal that rotor stops operating in receiving motor, main control unit can control cut-out to fill by sending
The instruction of The electric loop, to cut off charge circuit.Specifically, main control unit can send control to the relay in charge circuit and refer to
Order, so that the contact of relay disconnects to cut off charge circuit.
By the embodiment of the present invention, after rotor stops operating within the compressor, timely return signal is to master control list
Unit, controls cut-out charge circuit by main control unit, thus avoid rotor within the compressor to stop operating storing afterwards
Electric energy is conveyed to compressor again, causes the waste of electric energy.
Preferably, charge circuit includes battery, and this battery distinguishes phase with the DC side of rectification circuit and consuming parts
Connect, provided electric energy for storing to the direct current of DC side and to consuming parts, wherein, consuming parts are compressor institute
The consuming parts of the air-conditioner at place.
Step S305 can be that the direct current after the AC conversion producing motor reversal is electronically stored in battery.
After step S307, compressor energy control method includes starting storage battery and powers to consuming parts.By electric power storage
The electric energy of pond storage supplies the consuming parts in air-conditioner, indicator lamp being for example made up of etc. light emitting diode.
When the electric energy of battery is less than given threshold, civil power is switched to power to consuming parts from battery.
Specifically, when being powered to the consuming parts in air-conditioner by battery, can be with real-time detection battery
Electric energy, when detect battery electric energy be less than given threshold when, to main control unit feed back signal, main control unit receive to
After feedback signal, system cut-out storage battery power supply turns to mains-supplied.Wherein, given threshold can be entered according to the parameter of battery
Row sets.
In actual application, compressor shutdown is capable of the energy of feedback taking a 400kW photovoltaic centrifugal chiller as a example
About 2kW about, this portion of energy can maintain compressor bank all LED operation 1-2 days, and such compressor is daily
Stopping once can be to provide sufficient energy for all of light emitting diode of unit.Hundreds of kilowatts of electric energy can be saved within 1 year.
And this energy feedback method does not need to add auxiliary equipment it is only necessary to work out rational signal control logic and reasonable in design holding
Row circuit.
It should be noted that the step that illustrates of flow process in accompanying drawing can be in such as one group of computer executable instructions
Execute in computer system, and although showing logical order in flow charts, but in some cases, can be with not
It is same as the step shown or described by order execution herein.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Computing device realizing, they can concentrate on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the executable program code of computing device, it is thus possible to they are stored
To be executed by computing device in the storage device, or they be fabricated to each integrated circuit modules respectively, or by they
In multiple modules or step be fabricated to single integrated circuit module to realize.So, the present invention be not restricted to any specific
Hardware and software combines.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (11)
1. a kind of compressor energy steering circuit is it is characterised in that include：
Rectification circuit, described rectification circuit includes DC side and AC, the AC of described rectification circuit and the electricity of compressor
Machine is connected, and the AC conversion for producing described motor reversal is direct current, and by the direct current of described rectification circuit
Side exports；
Charge circuit, is connected with the DC side of described rectification circuit, and the DC side for storing described rectification circuit exports
Described direct current, wherein, described charge circuit includes relay, described relay be arranged in described charge circuit with connect or
Disconnect described charge circuit；
Detector, for when detecting described motor reversal, exporting the feedback signal for representing described motor reversal；
Main control unit, is connected with described detector, for receiving described feedback signal and sending control to described relay and refer to
Order, wherein, described control instruction is used for controlling the contact closure of described relay.
2. compressor energy steering circuit according to claim 1 is it is characterised in that described charge circuit also includes：
Battery, described battery is respectively connected with the DC side of described rectification circuit and consuming parts, for described straight
The direct current of stream side is stored and is provided electric energy to described consuming parts, and wherein, described consuming parts are described compressor institute
The consuming parts of the air-conditioner at place,
Wherein, the contact of described relay is connected between the AC of described rectification circuit and described battery.
3. compressor energy steering circuit according to claim 2 is it is characterised in that described consuming parts are indicator lamp.
4. compressor energy steering circuit according to claim 1 is it is characterised in that described compressor energy steering circuit
Also include：
Filter capacitor, described filter capacitor is connected to the DC side of described rectification circuit, straight for export to described DC side
Stream electricity is filtered.
5. the compressor energy steering circuit according to any one of Claims 1-4 is it is characterised in that described rectification circuit
For the inversion unit in the frequency converter of described compressor.
6. a kind of centrifugal refrigerating machines are it is characterised in that include the compressor energy control described in any one of claim 1 to 5
Circuit processed.
7. a kind of compressor energy control method is it is characterised in that described compressor energy control method is used for compressor
Energy is controlled, and described compressor energy control method includes：
Obtain the alternating current that the motor reversal of described compressor produces；
Described AC conversion is direct current；And
Store described direct current,
Wherein, by compressor energy steering circuit, the energy of described compressor is controlled, described compressor energy hole
Circuit includes：
Rectification circuit, described rectification circuit includes DC side and AC, the AC of described rectification circuit and the electricity of compressor
Machine is connected, and the AC conversion for producing described motor reversal is direct current, and by the direct current of described rectification circuit
Side exports；And
Charge circuit, is connected with the DC side of described rectification circuit, and the DC side for storing described rectification circuit exports
Direct current,
Wherein, described AC conversion is included for direct current：
Receive the feedback signal of motor reversal described in described compressor；
Instruction is sent to connect described charge circuit based on the feedback signal of described motor reversal；And
The AC conversion that motor reversal described in described compressor produces is described by the described charge circuit after connecting
Direct current.
8. compressor energy control method according to claim 7 it is characterised in that obtain described compressor motor
Before the alternating current that reversion produces, described compressor energy control method also includes；
Receive the feedback signal of described compressor shutdown；
Based on the feedback signal of described compressor shutdown, the confession of described compressor is electrically cut off；And
Read described compressor shutdown to the time of motor reversal described in described compressor.
9. compressor energy control method according to claim 8 is it is characterised in that arrive reading described compressor shutdown
Described in described compressor while the time of motor reversal, described compressor energy control method also includes：
Send control instruction to the components and parts needing electric discharge, described control instruction is used for controlling the described components and parts needing electric discharge to enter
Row electric discharge；And
The described components and parts needing electric discharge are controlled to be discharged based on described control instruction.
10. compressor energy control method according to claim 7 includes it is characterised in that storing described direct current：
Described direct current after the AC conversion being produced by the described motor reversal of described charge circuit storage, wherein,
When rotor stops operating in described motor, receive the feedback signal that in described motor, rotor stops operating；
And
Instruction is sent to cut off described charge circuit based on the feedback signal that rotor in described motor stops operating.
11. compressor energy control methods according to claim 7 are it is characterised in that described charge circuit includes electric power storage
Pond, described battery is respectively connected with the DC side of described rectification circuit and consuming parts, for straight to described DC side
Stream electricity is stored and is provided electric energy to described consuming parts, and wherein, described consuming parts are the air-conditioning residing for described compressor
The consuming parts of device,
Wherein, the direct current after the AC conversion being produced by the described motor reversal of described charge circuit storage is included：By institute
State the direct current after the AC conversion of motor reversal generation to be electronically stored in described battery,
After cutting off described charge circuit, described compressor energy control method includes：Start described battery to described use
Electric part is powered；When the electric energy of described battery is less than given threshold, switch to civil power to described electricity consumption from described battery
Part is powered.
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| CN105689160B (en) * | 2016-01-20 | 2019-01-08 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of closing method and device for magnetic suspension centrifuge |
| CN108759212B (en) * | 2018-06-15 | 2020-12-04 | 重庆美的通用制冷设备有限公司 | Shutdown control method and system of water chilling unit and water chilling unit |
| CN109980770A (en) * | 2019-04-24 | 2019-07-05 | 苏州浪潮智能科技有限公司 | A kind of data center's air-conditioning emergency power system and control method |
| CN112032088B (en) * | 2019-06-04 | 2022-02-08 | 安徽中家智康科技有限公司 | Device and method for realizing reverse power generation of air conditioner external fan by controlling rotation of fan |
| CN112984739B (en) * | 2021-04-08 | 2022-03-18 | 珠海格力电器股份有限公司 | Air conditioner control method, air conditioner control device, air conditioner and storage medium |
| CN113028580A (en) * | 2021-04-28 | 2021-06-25 | 宁波奥克斯电气股份有限公司 | Energy-saving starting control method and device for compressor, energy-saving starting device and air conditioner |
| CN113872467B (en) * | 2021-09-30 | 2024-08-06 | 广东美的暖通设备有限公司 | Control method and device of frequency converter, electric appliance and readable storage medium |
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