CN106655828A - Ion purifier, and control method and apparatus thereof - Google Patents
Ion purifier, and control method and apparatus thereof Download PDFInfo
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- CN106655828A CN106655828A CN201611254667.XA CN201611254667A CN106655828A CN 106655828 A CN106655828 A CN 106655828A CN 201611254667 A CN201611254667 A CN 201611254667A CN 106655828 A CN106655828 A CN 106655828A
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- ion generator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention discloses an ion purifier, and a control method and apparatus thereof. The ion purifier comprises a rectification module, a high-voltage driver module and an ion generator connected in sequence. The method comprises the following steps of obtaining an input current of the high-voltage driver module, and calculating real-time power of the ion generator according to the input current; obtaining target set power of the ion generator; calculating a duty ratio adjustment value of a driver signal of the high-voltage driver module according to a power difference value between the target set power and the real-time power; and adjusting a duty ratio of the driver signal according to the duty ratio adjustment value, and performing control on the high-voltage driver module according to the adjusted duty ratio, thereby enabling the ion generator to run in a constant power manner, ensuring stable output of an ionic field, and effectively avoiding the phenomena of breakdown, arcing and the like of the ion generator caused by excessively high power.
Description
Technical field
The present invention relates to household electrical appliance technical field, more particularly to a kind of control method of ion purifier, a kind of ion
The control device of clarifier and a kind of ion purifier with the control device.
Background technology
At present, plasma cleaning technology is substantially adopted on no material consumption air purifier, its principle is by high-tension electricity
Source to ion generator loads superelevation DC voltage so that flow through the air ionization in ion generator, the impurity band in air
Electricity, then the collecting plate adsorbing contaminant for passing through opposite voltage, so as to clean air.
According to above-mentioned principle, can ion generator is abstract for capacity load, wherein high-pressure side is capacitance pole, is flowed into
Air be dielectric.It follows that in the case where electrode structure is constant, the temperature of air, relative humidity, air pressure, containing miscellaneous
Amount and flow velocity can all cause the change of capacitor leakage current, so as to cause ion generator power swing, or even in extreme case
Under occur puncture, the phenomenon such as arcing, if be not correspondingly processed, easily cause ion generator damage, air is net
Changing efficiency reduces, it is serious in the case of, the safety of user may be jeopardized.
In correlation technique, ion generator is driven using constant duty ratio control.Constant duty ratio control is easy to reality
Existing, under stable environment, constant duty ratio control is able to maintain that constant High voltage output and power, but, work as air dielectric
Change, such as, relative humidity is raised, ion generator leakage current can be caused to increase, so that power output increase, works as phase
After rising to a certain degree to humidity, ion generator occur puncture, the phenomenon such as arcing.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
For this purpose, it is an object of the present invention to propose a kind of control method of ion purifier, being sent out by controlling ion
Raw device output-constant operation is prevented effectively from and cause ion generator because power is too high and occur hitting to ensure the stable output of ion field
Wear, the phenomenon such as arcing.
Further object is that proposing a kind of control device of ion purifier.
A further object of the present invention is to propose a kind of ion purifier.
For achieving the above object, a kind of control method of ion purifier that one aspect of the present invention embodiment is proposed, described
Ion purifier includes rectification module, high drive module and the ion generator being sequentially connected, and methods described includes following step
Suddenly：The input current of the high drive module is obtained in real time, and the ion generator is calculated according to the input current
Realtime power；Obtain the goal-setting power of the ion generator；According to the goal-setting power and the realtime power
Between power difference calculate the high drive module drive signal amount of duty cycle adjustment；According to the duty cycle adjustment
Measure the dutycycle to the drive signal to be adjusted, and the high drive module is controlled according to the dutycycle after regulation
System, so that the ion generator output-constant operation.
The control method of ion purifier according to embodiments of the present invention, first, obtains in real time the defeated of high drive module
Enter electric current, and the realtime power of ion generator is calculated according to input current, then, obtain the goal-setting work(of ion generator
Rate, and the duty of the drive signal of high drive module is calculated according to the power difference between goal-setting power and realtime power
Than regulated quantity, finally, the dutycycle of drive signal is adjusted according to amount of duty cycle adjustment, and according to the dutycycle after regulation
High drive module is controlled, so that ion generator output-constant operation, it is ensured that the stable output of ion field, is prevented effectively from
Cause ion generator to occur puncturing because power is too high, the phenomenon such as arcing.
According to one embodiment of present invention, increment type PID algorithm can be adopted to calculate the driving of the high drive module
The amount of duty cycle adjustment of signal.
According to one embodiment of present invention, can be by being connected on the noninductive resistance of the input of the high drive module
And the amplifying circuit in parallel with the noninductive resistance obtains the input current of the high drive module.
According to one embodiment of present invention, the high drive module includes：Transformer, switching tube and voltage multiplying rectifier mould
Block, wherein, after the primary coil of the transformer is connected with the switching tube, be connected in parallel on the rectification module output end it
Between, the secondary coil of the transformer is corresponding with the input of the voltage doubling rectifier module to be connected.
For achieving the above object, another aspect of the present invention embodiment proposes a kind of control device of ion purifier, institute
Rectification module, high drive module and ion generator that ion purifier includes being sequentially connected are stated, described device includes：Electric current
Acquisition module, for obtaining the input current of the high drive module in real time；Computing module, for according to the input current
Calculate the realtime power of the ion generator；Control module, the control module is connected with the computing module, the control
Module is used to obtain the goal-setting power of the ion generator, and according to the goal-setting power and the realtime power
Between power difference calculate the high drive module drive signal amount of duty cycle adjustment, and according to the dutycycle
Regulated quantity is adjusted to the dutycycle of the drive signal, and the high drive module is entered according to the dutycycle after regulation
Row control, so that the ion generator output-constant operation.
The control device of ion purifier according to embodiments of the present invention, obtains in real time high pressure and drives by electric current acquisition module
The input current of dynamic model block, computing module according to input current calculate ion generator realtime power, control module obtain from
The goal-setting power of electronic generator, and high drive is calculated according to the power difference between goal-setting power and realtime power
The amount of duty cycle adjustment of the drive signal of module, and the dutycycle of drive signal is adjusted according to amount of duty cycle adjustment,
And high drive module is controlled according to the dutycycle after regulation, so that ion generator output-constant operation, it is ensured that ion
Stable output, be prevented effectively from cause because power is too high ion generator occur puncturing, the phenomenon such as arcing.
According to one embodiment of present invention, the control module can calculate the high pressure and drive using increment type PID algorithm
The amount of duty cycle adjustment of the drive signal of dynamic model block.
According to one embodiment of present invention, the electric current acquisition module can be by being connected on the high drive module
The noninductive resistance of input and the amplifying circuit in parallel with the noninductive resistance obtain the input current of the high drive module.
According to one embodiment of present invention, the high drive module includes：Transformer, switching tube and voltage multiplying rectifier mould
Block, wherein, after the primary coil of the transformer is connected with the switching tube, be connected in parallel on the rectification module output end it
Between, the secondary coil of the transformer is corresponding with the input of the voltage doubling rectifier module to be connected.
Additionally, embodiments of the invention also proposed a kind of ion purifier, it includes above-mentioned control device.
The ion purifier of the embodiment of the present invention, by above-mentioned control device ion generator output-constant operation is controlled,
Ensure the stable output of ion field, be prevented effectively from cause because power is too high ion generator occur puncturing, the phenomenon such as arcing.
Description of the drawings
Fig. 1 is the structural representation of ion purifier according to an embodiment of the invention；
Fig. 2 is the structural representation of ion purifier in accordance with another embodiment of the present invention；
Fig. 3 is the flow chart of the control method of ion purifier according to embodiments of the present invention；
Fig. 4 is the structural representation of the ion purifier according to another embodiment of the invention；
Fig. 5 is the schematic diagram of increment type PID algorithm according to an embodiment of the invention；And
Fig. 6 is the block diagram of the control device of ion generator according to embodiments of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
With reference to the accompanying drawings describing the control of the control method of the ion purifier of the embodiment of the present invention, ion purifier
Device and the ion purifier with the control device.
In an embodiment of the present invention, ion purifier may include to be sequentially connected rectification module, high drive module and
Ion generator.
Specifically, as shown in figure 1, the input of rectification module is connected with electric main, the output end of rectification module with
The input of high drive module is connected, and the output end of high drive module is connected with ion generator.On ion purifier
During electricity work, the rectified module of electric main is converted into low-voltage DC, and high drive module carries out turning to the low-voltage DC
Change, to export high voltage direct current, drive ion generator work.Wherein, the size of high voltage direct current mainly with rectification module
Output voltage, high drive module parameter (such as high-low pressure no-load voltage ratio, the dutycycle of control signal) it is relevant.And it is true to work as hardware circuit
After fixed, for example, rectification module using Switching Power Supply or can not control rectifying circuit, the size and ion generator of high voltage direct current
Power it is only relevant with the dutycycle of the control signal of high drive module, dutycycle is higher, and the voltage of high voltage direct current is higher,
Corresponding ion generator power also can be higher.
Further, according to one embodiment of present invention, as shown in Fig. 2 high drive module may include：Transformer,
Switching tube and voltage doubling rectifier module, wherein, after the primary coil of transformer is connected with switching tube, it is connected in parallel on the output of rectification module
Between end, the secondary coil of transformer is corresponding with the input of voltage doubling rectifier module to be connected.Wherein, switching tube can be three poles
Pipe, IGBT, metal-oxide-semiconductor etc., transformer can be step-up transformer.
Specifically, as shown in Fig. 2 when ion purifier works on power, rectification module exports fixed low-voltage direct
The primary coil of electricity to transformer, meanwhile, control chip (such as MCU) output control signal (such as pwm signal) to switching tube drives
Switching tube carries out turn-on and turn-off, so as to produce alternating voltage on the primary coil of transformer, the now secondary wire of transformer
Circle will induce the high-tension electricity of pulsation, and then Jing voltage doubling rectifier modules are changed, the high voltage direct current needed for output, so that from
Electronic generator works.Wherein, the size of high voltage direct current output voltage, the no-load voltage ratio of transformer, switch mainly with rectification module
The dutycycle of pipe control signal, the relating to parameters of voltage doubling rectifier module.And after hardware circuit determines, the size of high voltage direct current
Only relevant with the dutycycle of the control signal of switching tube with the power of ion generator, dutycycle is higher, and high voltage direct current is bigger,
The power of corresponding ion generator also can be higher.
In correlation technique, ion generator is driven using constant duty ratio control, i.e. the control of the default dutycycle of output
Signal to switching tube, to obtain corresponding high voltage direct current in the output end of voltage doubling rectifier module.It is stable when using which
Constant High voltage output and power is able to maintain that under environment, but when air dielectric changes, capacitor leakage current can be caused
Change, causes ion generator power swing, in extreme circumstances, it may appear that puncture, the phenomenon such as arcing, and security is than relatively low.
Or, ion generator is driven using constant voltage feedback control, i.e. by multiple high pressure resistant big resistant series
Partial pressure, to extrapolate high direct voltage, then by feedback control, the dutycycle of real-time adjustment control signal so that high direct voltage
Can stably export.But because divider resistance error itself is larger, drift about during use more serious, and the inductance value of resistance
External interference can be introduced, therefore voltage acquisition there is in itself very big uncertainty, Reliability comparotive is low.
For this purpose, in an embodiment of the present invention, ion generator is driven using power limitation control mode.
Fig. 3 is the flow chart of the control method of ion purifier according to embodiments of the present invention.As shown in figure 3, the ion
The control method of clarifier may include following steps：
S1, obtains in real time the input current of high drive module, and calculates the real-time of ion generator according to input current
Power.
According to one embodiment of present invention, can by be connected on the input of high drive module noninductive resistance and with
Noninductive resistance amplifying circuit in parallel obtains the input current of high drive module.
Specifically, noninductive resistance refers to the very little resistance of induction reactance value, and its induction reactance value is negligible, and is carrying out electricity
During stream collection, external interference will not be introduced, sampling precision is high.Noninductive resistance can be metalfilmresistor, wire resistor etc..
As shown in figure 4, noninductive resistance is connected on into the one of the first output end of rectification module and the primary coil of transformer
Between end, when the operating current (input current) of high drive module flows through noninductive resistance, produce in noninductive resistance both sides micro-
Little pressure drop, amplifying circuit amplifies the small pressure drop, and is connected to the AD thief hatch of control chip, by detecting AD values, in real time
Obtain the input current I of high drive module.Then, by the input current I and low-voltage DC VDC of the output end of rectification module
It is multiplied, you can obtain the realtime power of ion generator.
S2, obtains the goal-setting power of ion generator.
S3, according to the power difference between goal-setting power and realtime power the drive signal of high drive module is calculated
Amount of duty cycle adjustment.
S4, is adjusted according to amount of duty cycle adjustment to the dutycycle of drive signal, and according to the dutycycle pair after regulation
High drive module is controlled, so that ion generator output-constant operation.
According to one embodiment of present invention, increment type PID algorithm can be adopted to calculate the drive signal of high drive module
Amount of duty cycle adjustment.
Specifically, as shown in figure 5, the input quantity of increment type PID algorithm is the realtime power of ion generator, output quantity
For the dutycycle of drive signal.Because the realtime power of ion generator is directly proportional to the dutycycle of drive signal, work as dutycycle
During increase, the power of ion generator is consequently increased.
It is assumed that DkFor the output valve of kth time sampling instant dutycycle, according to the formula of pid algorithm, kth time sampling can be obtained
The output valve of moment dutycycle is：
Wherein, KpFor proportionality coefficient, T is the sampling period, TiFor the time of integration, D0It is initial during PID control to proceed by
Dutycycle, TdFor derivative time, ekFor the work(between the goal-setting power and realtime power of ion generator during kth time sampling
Rate difference.
Can be obtained by above-mentioned formula (1), be in the dutycycle of the sampling instant of kth -1 output：
Above-mentioned formula (1) and formula (2) are subtracted each other, as the computing formula of increment type PID algorithm：
Above-mentioned formula (3) is adjusted, is made
Can obtain：
Δ D=Aek-Bek-1+Cek-2 (4)
The value of A, B, C, can obtain the regulated quantity Δ D of dutycycle in by adjusting above-mentioned formula (4), according to Δ D to driving
The dutycycle of signal is adjusted, and for example, when relative air humidity increases, then reduces the dutycycle of drive signal automatically, i.e.,
D ＇=D- Δ D, then, are controlled according to the dutycycle after regulation to high drive module, make the real-time work(of ion generator
Rate is stable in goal-setting power.
Therefore, the control method of ion purifier according to embodiments of the present invention, can calculate according to power swing value and drive
The amount of duty cycle adjustment of dynamic signal, and the dutycycle to drive signal automatically adjusts so that ion generator maintains permanent work(
Rate is exported, effectively prevent power it is too high and cause punch through, the phenomenon such as arcing.
In sum, the control method of ion purifier according to embodiments of the present invention, first, obtains in real time high drive
The input current of module, and the realtime power of ion generator is calculated according to input current, then, obtain the mesh of ion generator
Mark setting power, and the driving letter of high drive module is calculated according to the power difference between goal-setting power and realtime power
Number amount of duty cycle adjustment, finally, the dutycycle of drive signal is adjusted according to amount of duty cycle adjustment, and according to regulation after
Dutycycle high drive module is controlled so that ion generator output-constant operation, it is ensured that the stable output of ion field,
Be prevented effectively from cause because power is too high ion generator occur puncturing, the phenomenon such as arcing.
Fig. 6 is the block diagram of the control device of ion purifier according to embodiments of the present invention.
In an embodiment of the present invention, as shown in figure 1, ion purifier may include rectification module 10, the height being sequentially connected
Pressure drive module 20 and ion generator 30.
Specifically, as shown in figure 1, the input of rectification module 10 is connected with electric main, the output of rectification module 10
End is connected with the input of high drive module 20, and the output end of high drive module 20 is connected with ion generator 30.From
When sub- clarifier works on power, the rectified module 10 of electric main is converted into low-voltage DC VDC, and high drive module 20 pairs should
Low-voltage DC VDC is changed, and to export high voltage direct current, drives ion generator 30 to work.Wherein, high voltage direct current
Size output voltage main with rectification module 10, the parameter of high drive module 20 are (as high-low pressure no-load voltage ratio, control signal are accounted for
It is empty than) it is relevant.And work as after hardware circuit determines, for example, rectification module 10 using Switching Power Supply or can not control rectifying circuit, it is high
Press the power of galvanic size and ion generator 30 only relevant with the dutycycle of the control signal of high drive module 20, account for
It is empty than higher, the voltage of high voltage direct current is higher, and the power of corresponding ion generator 30 also can be higher.
Further, according to one embodiment of present invention, as shown in Fig. 2 high drive module 20 may include：Transformer
21st, switching tube 22 and voltage doubling rectifier module 23, wherein, after the primary coil of transformer 21 is connected with switching tube 22, it is connected in parallel on whole
Between the output end of flow module 10, the secondary coil of transformer 21 is corresponding with the input of voltage doubling rectifier module 23 to be connected.Wherein,
Switching tube 22 can be triode, IGBT, metal-oxide-semiconductor etc., and transformer 21 can be step-up transformer.
Specifically, as shown in Fig. 2 when ion purifier works on power, rectification module 10 exports the low-pressure direct of fixation
The primary coil of stream electricity to transformer 21, meanwhile, control chip (such as MCU) output control signal (such as pwm signal) is to switching tube
22, driving switch pipe 22 carries out turn-on and turn-off, so as to produce alternating voltage on the primary coil of transformer 21, now transformation
The secondary coil of device 21 will induce the high-tension electricity of pulsation, and then Jing voltage doubling rectifier modules 23 are changed, the height needed for output
Pressure direct current, so that ion generator 30 works.Wherein, the size of high voltage direct current is mainly electric with the output of rectification module 10
Pressure, the no-load voltage ratio of transformer 21, the dutycycle of the control signal of switching tube 22, the relating to parameters of voltage doubling rectifier module 23.And in hardware
After circuit determines, the size of high voltage direct current and the power of ion generator 30 only with the dutycycle of the control signal of switching tube 22
Relevant, dutycycle is higher, and high voltage direct current is bigger, and the power of corresponding ion generator 30 also can be higher.
In correlation technique, ion generator 30 is driven using constant duty ratio control, that is, export the control of default dutycycle
Signal processed to switching tube 22, to obtain corresponding high voltage direct current in the output end of voltage doubling rectifier module 23.Taking which
When, constant High voltage output and power is able to maintain that under stable environment, but when air dielectric changes, electric capacity can be caused
Leakage current changes, and causes the power swing of ion generator 30, in extreme circumstances, it may appear that puncture, the phenomenon such as arcing, security
Than relatively low.
Or, ion generator 30 is driven using constant voltage feedback control, i.e. by the big resistant series of multiple high pressure
Partial pressure, to extrapolate DC high-voltage, then by feedback control, the dutycycle of real-time adjustment control signal so that direct current is high
Pressure energy is enough stably exported.But because divider resistance error itself is larger, drift about during use more serious, and the inductance of resistance
Amount can introduce external interference, therefore voltage acquisition there is in itself very big uncertainty, and Reliability comparotive is low.
For this purpose, in an embodiment of the present invention, ion generator 30 is driven using power limitation control mode.
As shown in fig. 6, the control device of the ion purifier may include electric current acquisition module 100, computing module 200 and control
Molding block 300.
Wherein, electric current acquisition module 100 is used to obtain the input current of high drive module 20 in real time.Computing module 200
For calculating the realtime power of ion generator 30 according to input current.Control module 300 is connected with computing module 200, control
Module 300 is used to obtain the goal-setting power of ion generator 30, and according between goal-setting power and realtime power
Power difference calculates the amount of duty cycle adjustment of the drive signal of high drive module 20, and according to amount of duty cycle adjustment to driving
The dutycycle of signal is adjusted, and high drive module 20 is controlled according to the dutycycle after regulation, so that ion is sent out
The raw output-constant operation of device 30.
According to one embodiment of present invention, as shown in figure 4, electric current acquisition module 100 can be by being connected on high drive
The noninductive resistance 41 of the input of module 20 and the amplifying circuit 42 in parallel with noninductive resistance 41 obtain high drive module 20
Input current.
Specifically, noninductive resistance 41 refers to the very little resistance of induction reactance value, and its induction reactance value is negligible, and is carrying out
During current acquisition, external interference will not be introduced, sampling precision is high.Noninductive resistance 41 can be metal film, wire resistor etc..
As shown in figure 4, noninductive resistance 41 to be connected on the first output end of rectification module 10 and the primary line of transformer 21
Between one end of circle, when the operating current (input current) of high drive module 20 flows through noninductive resistance, in noninductive resistance 41
Both sides produce small pressure drop, and amplifying circuit 42 amplifies the small pressure drop, and is connected to the AD thief hatch of control chip, by inspection
AD values are surveyed, the input current I of high drive module 20 is obtained in real time.Then, by computing module 200 by input current I with it is whole
The low-voltage DC VDC of the output end of flow module 10 is multiplied, you can obtain the realtime power of ion generator 30.Then according to from
Power difference between the realtime power and goal-setting power of electronic generator 30 calculates the drive signal of high drive module 20
Amount of duty cycle adjustment, the dutycycle of drive signal is adjusted according to regulated quantity, and split according to the dutycycle after regulation
Close pipe 22 and be driven control, high voltage direct current is exported by repoussage flow module 23, so that the output-constant operation of ion generator 30.
According to one embodiment of present invention, control module 300 can calculate high drive module using increment type PID algorithm
The amount of duty cycle adjustment of 20 drive signal.
Specifically, as shown in figure 5, the input quantity of increment type PID algorithm is the realtime power of ion generator 30, export
Measure the dutycycle for drive signal.Because the realtime power of ion generator 30 is directly proportional to the dutycycle of drive signal, when accounting for
When sky is than increasing, the power of ion generator 30 is consequently increased.
The output valve that Dk is kth time sampling instant dutycycle is assumed, according to the formula of pid algorithm, when can obtain kth time sampling
Carve dutycycle output valve be：
Wherein, KpFor proportionality coefficient, T is the sampling period, TiFor the time of integration, D0It is initial during PID control to proceed by
Dutycycle, TdFor derivative time, ekFor between the goal-setting power and realtime power of ion generator 30 during kth time sampling
Power difference.
Can be obtained by above-mentioned formula (1), be in the dutycycle of the sampling instant of kth -1 output：
Above-mentioned formula (1) and formula (2) are subtracted each other, as the computing formula of increment type PID algorithm：
Above-mentioned formula (3) is adjusted, is made
Can obtain：
Δ D=Aek-Bek-1+Cek-2 (4)
The value of A, B, C in by adjusting above-mentioned formula (4), control module 300 can obtain the regulated quantity Δ D of dutycycle, and
The dutycycle of drive signal is adjusted according to Δ D, for example, when relative air humidity increases, is then reduced automatically and is driven letter
Number dutycycle, i.e. then D ＇=D- Δ D, be controlled according to the dutycycle after regulation to high drive module 20, makes ion
The realtime power of generator 30 is stable in goal-setting power.
Therefore, the control device of ion purifier according to embodiments of the present invention, can calculate according to power swing value and drive
The amount of duty cycle adjustment of dynamic signal, and the dutycycle to drive signal automatically adjusts so that ion generator maintains permanent work(
Rate is exported, effectively prevent power it is too high and cause punch through, the phenomenon such as arcing.
The control device of ion purifier according to embodiments of the present invention, obtains in real time high pressure and drives by electric current acquisition module
The input current of dynamic model block, computing module according to input current calculate ion generator realtime power, control module obtain from
The goal-setting power of electronic generator, and high drive is calculated according to the power difference between goal-setting power and realtime power
The amount of duty cycle adjustment of the drive signal of module, and the dutycycle of drive signal is adjusted according to amount of duty cycle adjustment,
And high drive module is controlled according to the dutycycle after regulation, so that ion generator output-constant operation, it is ensured that ion
Stable output, be prevented effectively from cause because power is too high ion generator occur puncturing, the phenomenon such as arcing.
Additionally, embodiments of the invention also proposed a kind of ion purifier, it includes above-mentioned control device.
The ion purifier of the embodiment of the present invention, by above-mentioned control device, controls ion generator output-constant operation,
Ensure the stable output of ion field, be prevented effectively from cause because power is too high ion generator occur puncturing, the phenomenon such as arcing.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicates or imply that the device or element of indication must
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clearly restriction.For one of ordinary skill in the art
For, can as the case may be understand above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (9)
1. a kind of control method of ion purifier, it is characterised in that the ion purifier includes the rectification mould being sequentially connected
Block, high drive module and ion generator, the method comprising the steps of：
The input current of the high drive module is obtained in real time, and the ion generator is calculated according to the input current
Realtime power；
Obtain the goal-setting power of the ion generator；
The drive of the high drive module is calculated according to the power difference between the goal-setting power and the realtime power
The amount of duty cycle adjustment of dynamic signal；
The dutycycle of the drive signal is adjusted according to the amount of duty cycle adjustment, and according to the dutycycle pair after regulation
The high drive module is controlled, so that the ion generator output-constant operation.
2. the control method of ion purifier as claimed in claim 1, it is characterised in that calculated using increment type PID algorithm
The amount of duty cycle adjustment of the drive signal of the high drive module.
3. the control method of ion purifier as claimed in claim 1 or 2, it is characterised in that by being connected on the high pressure
The noninductive resistance of the input of drive module and the amplifying circuit in parallel with the noninductive resistance obtain the high drive module
Input current.
4. the control method of ion purifier as claimed in claim 1, it is characterised in that the high drive module includes：
Transformer, switching tube and voltage doubling rectifier module, wherein, it is in parallel after the primary coil of the transformer is connected with the switching tube
Between the output end of the rectification module, the secondary coil of the transformer is corresponding with the input of the voltage doubling rectifier module
It is connected.
5. a kind of control device of ion purifier, it is characterised in that the ion purifier includes the rectification mould being sequentially connected
Block, high drive module and ion generator, described device includes：
Electric current acquisition module, for obtaining the input current of the high drive module in real time；
Computing module, for calculating the realtime power of the ion generator according to the input current；
Control module, the control module is connected with the computing module, and the control module is used to obtain the ion generation
The goal-setting power of device, and the height is calculated according to the power difference between the goal-setting power and the realtime power
The amount of duty cycle adjustment of the drive signal of pressure drive module, and the drive signal is accounted for according to the amount of duty cycle adjustment
Empty ratio is adjusted, and the high drive module is controlled according to the dutycycle after regulation, so that the ion occurs
Device output-constant operation.
6. the control device of ion purifier as claimed in claim 5, it is characterised in that the control module adopts increment type
Pid algorithm calculates the amount of duty cycle adjustment of the drive signal of the high drive module.
7. the control device of the ion purifier as described in claim 5 or 6, it is characterised in that the electric current acquisition module leads to
The noninductive resistance and the amplifying circuit in parallel with the noninductive resistance for crossing the input for being connected on the high drive module is obtained
The input current of the high drive module.
8. the control device of ion purifier as claimed in claim 5, it is characterised in that the high drive module includes：
Transformer, switching tube and voltage doubling rectifier module, wherein, it is in parallel after the primary coil of the transformer is connected with the switching tube
Between the output end of the rectification module, the secondary coil of the transformer is corresponding with the input of the voltage doubling rectifier module
It is connected.
9. a kind of ion purifier, it is characterised in that include the control of the ion purifier as any one of claim 5-8
Device processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611254667.XA CN106655828A (en) | 2016-12-30 | 2016-12-30 | Ion purifier, and control method and apparatus thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611254667.XA CN106655828A (en) | 2016-12-30 | 2016-12-30 | Ion purifier, and control method and apparatus thereof |
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| CN201611254667.XA Pending CN106655828A (en) | 2016-12-30 | 2016-12-30 | Ion purifier, and control method and apparatus thereof |
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| CN112003533A (en) * | 2020-08-03 | 2020-11-27 | 中国人民解放军海军工程大学 | Motor variable constant power control method and device based on V/F |
| CN112667020A (en) * | 2020-12-11 | 2021-04-16 | 珠海格力电器股份有限公司 | Output power control method and device of air sterilizer and air sterilizer |
| CN116909203A (en) * | 2023-09-14 | 2023-10-20 | 中国人民解放军海军工程大学 | Interelectrode constant voltage and constant current control device and control method for plasma reactor |
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Application publication date: 20170510 |