CN107834360A - Portable negative ion generating means and its control method - Google Patents
Portable negative ion generating means and its control method Download PDFInfo
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- CN107834360A CN107834360A CN201711086503.5A CN201711086503A CN107834360A CN 107834360 A CN107834360 A CN 107834360A CN 201711086503 A CN201711086503 A CN 201711086503A CN 107834360 A CN107834360 A CN 107834360A
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- ion generating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
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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
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a kind of portable negative ion generating means and its control method.Described device includes casing, and casing includes case lid, box main body, and case lid is hinged with box main body, and case lid is provided with handle；Box main body includes battery, solar power system, wind generator system and anion and system, control system occurs；Include power switch, light-emitting diode display and USB interface on box main body front panel, power switch controls the upper electricity of negative ion generating device, and light-emitting diode display is used for the data transfer with the external world by control system display device state parameter, USB interface；Solar power system, wind generator system provide electric energy by control system for anion generator.The device is easy to carry, a variety of environmentally friendly power supply power supplies, and control is accurate.
Description
Technical field
The present invention relates to a kind of negative ion generating device, more particularly, to a kind of Portable negative ion generator and its control
Method.
Background technology
Anion generator is to be used for family or office, has pure and fresh sky as the important devices for improving air quality
The household appliances of the functions such as gas, sterilization, sterilization, dedusting.With the continuous improvement that people live, requirement of the people to living environment
Also more and more higher.The pollution of room air is much more seriously polluted than outdoor air, particularly fills air-conditioned room, indoor
Air does not produce convection current with outdoor air, and the pollution of air is even more serious.Therefore, people progressively produce emerging to anion generator
Interest.
Chinese patent (application number：CN201521054957.0 a kind of kation anion generator and electric equipment) are disclosed,
It includes dc source, controller and negative ions and module occurs, and the dc source is used to mould occur for the negative ions
Block and controller power supply, in addition to the regulating circuit being connected between dc source and negative ions the generation module, it is described
For regulating circuit under the PWM signals control that the controller exports, regulation is output to the work that module occurs for the negative ions
Voltage.By setting regulating circuit, can as needed and overall design requirement, export different voltage, it is different so as to discharge
Negative ion concentration.For another example Chinese patent application (application number CN201710654196.X) discloses a kind of tip-type anion and occurred
Device, it includes plastic jacket, metallic cylinder, frequency high voltage power supply and metallic wire tip, the frequency high voltage power supply, including self coupling and adjusted
Depressor, isolating transformer, high-voltage diode, high-voltage capacitance, corona discharge wire and grounded screen electrode, the original of the isolating transformer
Side is connected with the automatic coupling voltage regulator, and the high-voltage diode is connected on the anode of the secondary of the isolating transformer, the height
Voltage capacitance is connected in parallel between the negative terminal of the anode of the secondary of the isolating transformer and the secondary of the isolating transformer, the electricity
Corona line is connected with the anode of the high-voltage diode, and the grounded screen electrode is located at the opposite end of the corona discharge wire.This
Outside, such as Chinese patent, its application number：CN92211440.4 discloses a kind of micropower anion generator, application number：
CN201010122547.0 discloses a kind of negative oxygen ion generator.
Although above-mentioned prior art can produce anion, and life, the production to people provide a great convenience,
But there is following defect in above-mentioned anion generator and its control system：Such as or equipment heaviness is unfavorable for carrying or definite value
Although export anion or the output using PWM pulse width modulation controlled anions, it is possible to achieve the regulation of concentration is exported, by
In the difference of control strategy cause detection parameters output negative ion concentration standard exist error or electric power system it is single only with
Mains-supplied.
The content of the invention
Based on the deficiency of negative ion generating device in the prior art, the present invention designs a kind of portable negative ion generating means
And its control method is to solve deficiency of the prior art.Its technical scheme is as follows：
An aspect of of the present present invention, there is provided a kind of portable negative ion generating means, including casing, wherein the casing includes
Case lid, box main body, the case lid are hinged with box main body, and the case lid is provided with handle；Box main body includes battery, solar energy
System, control system occur for electricity generation system, wind generator system and anion；Opened on the box main body front panel including power supply
Close, light-emitting diode display and USB interface, the upper electricity of the power switch control negative ion generating device, light-emitting diode display pass through control
System displaying device state parameter processed, the USB interface are used for the data transfer with the external world；The solar power system, wind
Force generating system provides electric energy by control system for anion generator.
Preferably, the solar power system includes solar cell module, DC/DC types buck converter, battery
Charging circuit, storage battery charge control circuit；The solar cell module includes the connection in series-parallel control electricity of solar panel
Road；Solar cell module is by the DC supply input that solar energy is changed into DC/DC type buck converters；The decompression of DC/DC types becomes
Parallel operation output end is by battery charging circuit and by the control of storage battery charge control circuit, by the direct current by decompression
It is input in battery.
Preferably, the wind generator system include wind-driven generator, uncontrollable bridge rectifier, DC/DC converters,
Battery and control system；Wind-driven generator send it is electric it is rectified after become DC supply input DC/DC booster types conversion
Device, DC/DC boost converters by the voltage after boosting by the control input of control system into battery.
Preferably, system, which occurs, for anion includes negative ion generating circuit and control circuit；Negative ion generating circuit leads to
Cross control circuit output anion；The linking relationship of element is as follows in the negative ion generating circuit：Battery output+12V's
Direct current ,+12V dc source can be changed into several kilovolts of high-voltage DC power supply；Should+12V DC electricity is input to triode
Qc colelctor electrode, Qc base stage and control circuit link, and Qc emitter stage and resistance R1 one end link；The resistance R1 other ends and electricity
Hinder R2, the link of diode D1 anodes；The resistance R2 other ends link with resistance R3, while are linked by electric capacity C1 and ground；Triode
Q grounded emitter, triode Q base stage meet the input of the winding of transformer T primary sides one, the output termination R4 mono- of the winding
End；Q colelctor electrode connects the output end of another winding of transformer T primary sides, while triode Qc emitter stage connects the input of the winding
End；Transformer T secondary output terminating diode D2 negative electrodes, resistance R5, electric capacity C3 one end, another output of transformer T secondary
End is linked by electric capacity C2 and diode D2 anode, diode D3 negative electrode；Resistance R6 one end and resistance R5 other end chains
Connect, the other end links with resistance R7 one end, diode D3 anode.
A kind of another aspect of the present invention, there is provided control method of portable negative ion generating means.Pass through wind-power electricity generation
And solar power generation is storage battery power supply, battery output+12V arrives triode Qc colelctor electrode, and control system is passed through to sky
The collection of negative ion concentration, ozone concentration parameter in gas, and exported after being blurred to the parameter of collection using fuzzy control theory
Control signal gives Qc base stages, with the PWM ripples of time changing dutycycle ratio to control the Qc conducting turn-off time, and then accurately adjusts
Whole anion generator produces negative ion concentration.
The device of the present invention is easy to carry, a variety of environmentally friendly power supply power supplies, and control is accurate.
Brief description of the drawings
Fig. 1 is negative ion generating device outside drawing of the present invention.
Fig. 2 is Control system architecture block diagram in anion generator of the present invention.
Fig. 3 is solar power system structure chart in negative ion generating device of the present invention.
Fig. 4 is wind generator system structure chart in negative ion generating device of the present invention.
Fig. 5 is photovoltaic cell output characteristic curve in solar power system in negative ion generating device of the present invention.
Fig. 6 is buck DC/DC converter circuits in solar power system in negative ion generating device of the present invention.
Fig. 7 is buck DC/DC converter output waveform diagrams in solar power system of the present invention.
Fig. 8 is solar panel series-parallel circuit schematic diagram in solar power system of the present invention.
Fig. 9 is Battery charge controller schematic diagram in solar power system of the present invention.
Figure 10 is negative ion generating device battery discharging control principle drawing of the present invention.
Figure 11 is negative ion generating device negative ion generating circuit schematic diagram of the present invention.
Figure 12 is push-pull type DC/DC converter principle figures in wind generator system of the present invention.
Figure 13 is negative ion generating device DC/AC converter main circuit schematic diagrams of the present invention.
Figure 14 is the control principle block diagram of fuzzy control of the present invention
Figure 15 is the membership function of negative ion concentration difference E (n) in fuzzy control of the present invention
Figure 16 is step-length A (n-1) schematic diagram in fuzzy control of the present invention
Figure 17 is the membership function schematic diagram of step-length A (n) in fuzzy control of the present invention
Wherein：1 is case lid；2 be box main body；3 be light-emitting diode display；4 be USB interface；5 be switch；6 be blower fan；7 is too
Positive energy photovoltaic module；8 be handle
Embodiment
Now describe the various exemplary embodiment of the present invention in detail, the detailed description is not considered as the limit to the present invention
System, and it is understood as the more detailed description to certain aspects of the invention, characteristic and embodiment.
It is shown in Figure 1.A kind of portable negative ion generating means, including casing, the casing include case lid, case master
Body, the case lid are hinged with box main body, and the case lid is provided with handle；Box main body include battery, solar power system,
System, control system occur for wind generator system and anion；Include power switch on the box main body front panel, LED shows
Show device and USB interface, the upper electricity of the power switch control negative ion generating device, light-emitting diode display is shown by control system
Showing device state parameter, the USB interface are used for the data transfer with the external world；The solar power system, wind-power electricity generation system
System provides electric energy by control system for anion generator.The box main body two sides set photovoltaic module.
Embodiment 1
Negative ion generating device power supply forms, including solar power system, wind power generation system.
1st, in solar power system main devices parameter and its control strategy design, referring to Fig. 2-3, shown in 5-10：
(1), the charge-discharge control circuit of battery：Solar panel caused electric energy under solar energy is the moment
In change, but system needs a stable electric energy to carry out the charging work of battery, the so performance to battery
Safeguard and the extension of service life is all beneficial, so from charging electricity of the DC/DC buck convertors as battery
Road.
DC/DC buck convertors, its circuit theory diagrams referring to accompanying drawing 6, switching tube Q in circuit, diode D, inductance L and
Electric capacity C, Von are supply voltage, and R is load resistance, and V0 is output voltage.In the operating condition, the conducting of switching tube repeatedly and
Cut-off, the switching of two kinds of different conditions is converted to DC voltage the voltage of impulse form, then is filtered by L, C, forms direct current
Voltage output.When switching tube turns on, power supply gives energy-storage travelling wave tube induction charging, and the electric current on inductance L gradually increases, and is opening
Inductive discharge when closing pipe cut-off, the electric current on inductance L are gradually reduced.Electric capacity strobes, and makes the ripple of the voltage in load
Reduce.Fig. 6 show inductance L, electric current on electric capacity C conversion waveform and load the output voltage waveforms on R：In t=0,
Switching tube Q is turned on, and supply voltage is added to C on diode D and output inductor L, output filter capacitor by switching tube, therefore
Diode D ends.Because output filter capacitor keeps constant, therefore it is V to be added in the voltage on Lon-Vo.Because VonMore than Vo, institute
With output inductor electric current iLLinear increase
Work as t=TonWhen, reach maximum ILmax.During switching tube turns on, increment Δ iL(+)For：
D in formulay=Ton/Ts, it is dutycycle.In t=TonMoment, switching tube Q shut-offs, iLContinue to flow by thermal diode D
It is logical.Now the L voltages in loading are-VO, iLIt is linear to reduce.
In t=TsWhen, iLReach minimum value ILmax.During switching tube Q ends, iLReduction amount Δ iL(-)For：
In t=TsMoment, switching tube Q are turned on again, restart next switch periods.The phase is turned in switching tube Q
Between, the electric current for flowing through it is exactly inductive current iL；During Q ends, the electric current for flowing through diode D is also iL.Flow through switching tube Q
Electric current be also power supply input current, in order to reduce the pulsation of mains input current, decompression transducer input side should
And connect input filter capacitor.According to the conservation of energy, Q conduction devices iLIncrement Δ iL(+)Equal to its subtracting in Q cutoff devices
A small amount of Δ iL(-).I.e.：ΔiL(+)=Δ iL(-)=Δ iL
Therefore, being required according to the present apparatus, design DC/DC input voltages are 40V, output voltage 12V, bearing power 50W,
Switching frequency is 50KHZ, dutycycle D=0.3, and design inductance l values are：
Consider 0.5% that output ripple voltage is output voltage, it may be determined that output capacitance size is：
For storage battery charge control circuit referring to shown in accompanying drawing 9, the circuit mainly includes the relay of control battery charging
Device, the voltage x current Acquisition Circuit of battery and charged state indicating circuit.Relay 3 in figure is exactly to control battery to charge
Whether key, the original state of the relay is normally closed, illustrates that it is given tacit consent in the connection status of DC/DC circuits and battery,
If controller is arranged to high level to the transistor base I/O mouths of control relay, then DC/DC buck convertors are with storing
Battery is just disconnected, and indicator lamp can be lighted.
The charge/discharge control circuit of battery is referring to shown in accompanying drawing 10.Mainly controlled in the charge/discharge control circuit of battery
Connection status between battery and load.Relay default mode between battery and load is conduction mode, if control
When the I/O port of device control triode processed is arranged to high level, battery is exactly Disconnected mode with load.
(2), the connection in series-parallel control circuit of solar panel：Because box main body both sides set solar panel, therefore
Need both sides cell panel carrying out connection in series-parallel design, its circuit diagram is referring to as shown in Figure 8：As can see from Figure 8, one 2 are shared
Individual solar panel, wherein cell panel A and cell panel B series-parallel system are controlled by two relays.Work as relay
1 is connected, and when relay 2 connects 2 pin of normally-closed contact, two groups of solar panel is combined (as shown in figure 8, series connection for series system
Mode is default mode)；When relay 1 is connected, and relay 2 connects 3 pin of normally opened contact, two pieces of solar panels are parallel connection side
Formula combines.The turn-on and turn-off of relay 1 and relay 2 are by ARM9 control chips directly according to the magnitude of voltage of two cell panels
It is controlled with current value.
(3) the tracking MPPT control strategies of maximum power point
Solar panel power output has nonlinear characteristic in solar power system, by temperature, intensity of illumination, bears
The many factors such as load influence, in order to improve the utilization ratio of solar panel, it is necessary to be tracked to its maximum power point
(MPPT), if system operating point is just on maximum power point, then system is in optimal matching status, solar panels
With maximum power output；Otherwise, solar panels are by with relatively low power output, if system seriously mismatches, then solar energy
Cell panel power output will become big very little.It can be obtained from Fig. 5 dynamic characteristics：K is bigger, and solar panels output voltage is smaller；
Conversely, output voltage is bigger.Wherein：
K is dynamic characteristic slope in formula, and Rm is solar panels output equivalent resistance.
Fig. 6 represents that solar panel connects by Buck converters and load, and circuit is operated in the continuous Working mould of electric current
Formula.For preferable Buck converters, its equivalent inpnt resistance is：
In formula：D is the dutycycle of power switch pipe；L R are the actual load of system.Drawn by above-mentioned two formula as follows：
Therefore, R is worked asLOne timing, can change k by changing D, finally realize the best match of system, and have：Increase
D, k become big, u0Diminish；Reduce D, k diminishes, u0Become big；Therefore, u is changed by changing D0, finally realize peak power with
Track.
Due to magnitude of voltage corresponding to solar panels maximum power point in local time's section linear change, it is assumed here that the electricity
Pressure value linearly reduces, then only needs to give solar panels one reduction voltage disturbance when disturbing next time, it is achieved that
The directionality of voltage disturbance, voltage disturbance number is reduced, improve the rapidity of system.Self study MPPT control method is by changing
The dutycycle D of Variable power switching tube changes output voltage U0, finally realizes MPPT maximum power point tracking.Rule of thumb, light is set
Volt battery maximum power point corresponding voltage is about 0.78 times of open-circuit voltage, therefore photovoltaic cell open-circuit voltage values are multiplied by into 0.78
As first maximum power point voltage, i.e.,：u0=0.78u0c, take the system disturbance step-length to be
And
Assuming that system has traced into a certain moment maximum power point, and this moment maximum power point corresponding voltage is taken to be
u0, previous maximum power point corresponding voltage is u, then and in next secondary tracking maximum power point,
It is as follows that step-length is disturbed first：
If u0>U, then：
If u0<U, then：
During somewhere MPPT maximum power point tracking is realized, it is o P to take current time solar panels power output, when previous
Carve as P, and perturbation direction is
If P0>P, then：
I.e.：If front and rear when power difference is larger twice, system is disturbed with larger step size；If front and rear power difference twice is smaller
When, system is disturbed with one smaller step-length；If front and rear power difference twice shows to trace into maximum in the range of systematic error
Power points.
Self study MPPT control method according to front and rear maximum power point corresponding voltage variation tendency twice and at certain once
Front and rear changed power size twice during tracking, disturbs D so that solar panels track within a short period of time using variable step
Peak power；Simultaneously because disturbed when changed power is smaller using small step-length so that the steady-state error of system is smaller.
(4) design of data acquisition module
Data acquisition module mainly includes the voltage x current collection of solar panel and battery, intensity of illumination is adopted
Collection.
Partial pressure acquisition mode is used in the collection of voltage data.At the both ends of solar panel with two resistant series
Mode carry out partial pressure, such as the resistance of two resistance is 90K and 10K respectively, according to series connection voltage divider principle, gathers 10K resistance
The voltage at both ends is exactly 0.1 times of solar cell output voltage, and the voltage that collects is carried out after A/D conversions multiplied by 10 just
It can obtain the true output voltage of solar panel.
Collection to current data is closed-loop Hall current sensor to complete, and the sensor is to use hall device
As core sensing element, the modular product for isolation detection electric current, its operation principle is Hall magnetic balance type, i.e., former
Magnetic field is compensated by magnetic field caused by the electric current of a secondary coil caused by the electric current of side.Due to solar panel
Short circuit current be 1.02A, in the case of parallel connection, maximum current also uses model HNC-05SY in 2A or so, the present apparatus
Area requirement of the system to measurement electric current can be met.
Before the acquisition module of intensity of illumination is gathered from the light-to-frequency converter TSL230R of TAOS companies as intensity of illumination
To channel sensor, it is internally integrated with a configurable silicon photoelectric diode and an electric current/frequency converter.
2nd, the design of wind generator system
Referring to shown in Fig. 2, Fig. 4 and Figure 12.Wind generator system mainly includes wind-driven generator, uncontrollable bridge rectifier
Device, DC/DC converters, battery and control system.Wind-driven generator send it is electric it is rectified after become DC supply input
DC/DC boost converters, the DC/DC boost converters are used for changing the load characteristic of wind-driven generator, regulator generator
Power output and control accumulator cell charging and discharging.
DC/DC boost converters
Using push-pull type DC/DC boost converters, the converter circuit structure chart is referring to shown in accompanying drawing 12.In circuit
Two switching tubes Ql, Q2 are connected on centre tapped primary both ends, and in circuit work, two switching tubes are alternately led
It is logical, it is that Nl winding both ends form the square-wave voltage of opposite in phase respectively in the number of turn, this circuit can regard full symmetric as
Two single-ended forward converters combine.Because output voltage is high pressure, so full bridge rectifier is employed, it is every to reduce
Individual rectifying tube reversely bears voltage, and Dl, D2, D3, D4 are commutation diode, and L, C are output inductor and filter capacitor.Should
Element is chosen in circuit：Transformer：No-load voltage ratio is 9, magnetic core model EE65, number of turns 4:4:36；Switching tube model
For IRF55N25；Secondary commutation diode is chosen for MC33151 power diodes；Filter inductance L=1.5MH；
Output filter capacitor selects 470Uf/450V electrochemical capacitors；Input filter capacitor C=200UF.
3rd, the design of DC/AC inverters
Using voltage-type full bridge inverter, its outlet side is using Industrial Frequency Transformer boosting and the filtering of LC filter circuits.This
Device requirement is gravity flow side input voltage 350VDC, the output of specified alternating voltage is 22OV/50Hz, rated capacity 800VA, its
Complete main circuit topological structure is as shown in figure 13.
C1 is the big filter capacitor of DC side, pulsation alternating-current magnitude when can effectively reduce work in DC bus-bar voltage,
And the inductive current energy storage fed back during load switch switching can be stored in short-term, suppress thus caused overvoltage；C2 is high-frequency pole-free
Property filter capacitor because in high-frequency inverter circuit, the energy that the equivalent series resistance of electrochemical capacitor can influence switching current is inhaled
Receive, it is therefore necessary in Cl both ends this in parallel electric capacity again.The inverter is modulated using the SPWM of single voltage polarity, and inverter is same
Two switching device alternating break-makes up and down of bridge arm, and be in complementary duty mode, i.e. power tube Ql and Q2 complementations, Q3 and Q4 are mutual
Mend, Ql and Q3 differ 180 degree electrical angle in phase.It is as follows according to design requirement, the inverter circuit parameter value：IGBT,
Voltage, current class 600V/150A, model Mitsubishi CM150DY-12H；Electric capacity=1000uF/400V electrochemical capacitors
And 0.47uf polarity free capacitors；Inductance L chooses 1.4mh, and electric capacity chooses 5uf.Direct current is converted to by DC/AC inverters
Powered after alternating current for present apparatus AC load.
4th, the operation principle of wind light mutual complementing power supply：
Wind and solar hybrid generating system is by the part such as wind-driven generator, solar panels, battery, inverter and control system group
Into.In the system, wind power generation part uses vertical-shaft permanent-magnet synchronous wind-driven generator, electric energy is converted wind energy into, by not
The alternating current that the controlled rectification bridge circuit machine of keeping watch is sent is changed into direct current, and DC/DC converter dutycycles are adjusted by controller
Afterwards, by electrical power storage in battery or supply load；Photovoltaic generation part converts the solar into electric energy, also using DC/DC
Converter realizes power conversion and regulation, and electric energy is finally stored in battery or directly feeds load.Control system is wind
The core of light complementary power generation system, it is using controller ARM9 as control core.
According to blower fan, the running status of solar panels, load change and the profit and loss of battery, become by adjusting DC/DC
The dutycycle of parallel operation inverter, realize the switching of the operational mode of each several part.Battery is by peripheral circuit supply whole system
DC voltage.The AC power of negative ion generating device is supplied in addition, battery is realized by DC/AC inverters.
Embodiment 2
Anion generator operation principle
Due in air with the presence of not by atom fetter free electron, these free electrons in the presence of electric field force,
Accelerated along the opposite direction of electric field, if electric field reaches certain intensity, make what free electron moved along electric field opposite direction
In free path, when its energy is increased sufficiently to other molecular collisions, the outer-shell electron of other molecules can be bombarded the journey of falling
Degree, then it will be continuously emerged in space by the molecule of bombardment power down, i.e. cation, with constantly increasing freedom again in time space
Electronics.If the energy of free electron is also not enough to the degree of falling the bombardment of the outer-shell electrons of other molecules with other molecule phases
Collision, it is more likely that will be captured by other molecules, and make its molecule become anion.It is existing big in space so where electric field
The cation of amount is present, while again with the presence of substantial amounts of anion and free electron.
Anion generator generally comprises high voltage power supply part, corona wire transmitting terminal, air-blast device, grounded part；Corona
Line transmitting terminal generally use metal needle or carbon fiber.High voltage power supply part passes through corona wire transmitting terminal and the current source of grounded part
Connect to form an electric field, the anion of its electric-field intensity more strong production is more.
Present invention employs negative ion generating circuit of the prior art, however, the anion hair used in the prior art
There is following defect in raw circuit, the power supply VCC of anion generation unit is in controlled state.If make anion generation unit
One direct power supply, then power consumption is higher, and can produce more ozone.Therefore control plan is added in this negative ion generating device
Slightly, a triode is increased before input power+12V, while the base stage of triode is electrically connected by Vcontol ends with control module
Connect.
Particular circuit configurations are referring to shown in accompanying drawing 11.System, which occurs, for anion includes negative ion generating circuit and control electricity
Road；Negative ion generating circuit passes through control circuit output anion；The linking relationship of element is such as in the negative ion generating circuit
Under：Battery output+12V direct current ,+12V dc source can be changed into several kilovolts of high-voltage DC power supply；Should+12V
DC supply input is to triode Qc colelctor electrode, and Qc base stage and control circuit link, Qc emitter stage and resistance R1 one end chain
Connect；The resistance R1 other ends link with resistance R2, diode D1 anodes；The resistance R2 other ends link with resistance R3, while by electricity
Hold C1 to link with ground；Triode Q grounded emitter, triode Q base stage connect the input of the winding of transformer T primary sides one, should
Output termination R4 one end of winding；Q colelctor electrode connects the output end of another winding of transformer T primary sides, while triode Qc hair
Emitter-base bandgap grading connects the input of the winding；Transformer T secondary output terminating diode D2 negative electrodes, resistance R5, electric capacity C3 one end, become
Another output end of depressor T secondary is linked by electric capacity C2 and diode D2 anode, diode D3 negative electrode；Resistance R6 one end
Linked with the resistance R5 other ends, the other end links with resistance R7 one end, diode D3 anode.Battery output+12V's is straight
+ 12V dc source, can be changed into several kilovolts of high-voltage DC power supply by stream electricity, component resistance R1, R2 in circuit, R3, R4,
Diode D1, electric capacity C1, triode Q and transformer the T coil of primary side two composition oscillating circuit.It is high that exchange is produced in T secondary
Pressure.In the negative half period of high pressure, charged for electric capacity C2；During positive half cycle, its voltage is identical with the voltage direction of the interpolars of electric capacity C2 two,
Charged after two voltage superpositions for electric capacity C8, then the maximum of the voltage across poles of electric capacity C3 two should be transformer T secondary voltage maximums
Twice.Resistance R5, R6, R7 play current limliting and protection circuit.
The export control policy of negative ion generating device
The negative ion concentration exported of negative ion generating device of the present invention is changed with the change of external environment,
And setting index is finally reached, the device passes through by the constantly collection to surrounding environment negative ion concentration, and by collection signal
After isolation amplification, A/D conversions, input a signal into the ARM9 control chips of control system, pass through the number of ARM9 control chips
According to processing, the waveform for constantly adjusting PWM duty cycle is exported to triode Qc base stages to control Qc conducting to turn off, so as to reach essence
The purpose of output negative ion concentration is really controlled, and then reduce energy consumption to reduce the generation of ozone.
The control strategy uses fuzzy control method to reach above-mentioned purpose.
1st, input and the determination of output variable
Taking object function, controlled quentity controlled variable is accounting for for the pwm signal for controlling switch pipe for setting negative ion concentration desired value
Sky compares D.The input quantity at the n-th moment of fuzzy self optimizing control device is the anion variable quantity at the n-th moment and accounting for for the (n-1)th moment
For sky than step value, the output quantity at the n-th moment is the dutycycle step value at the n-th moment.Figure 14 is control principle block diagram.
Wherein：
Input：(1) e (n) represents the actual value of the difference of the n-th moment and the change of the (n-1)th moment negative ion concentration, and E (n) is represented
The value that this difference corresponds in universe of fuzzy sets.
(2) a (n-1) represents the actual value of the (n-1)th moment step-length, and A (n-1) represents that this step value corresponds to fuzzy set theory
Value in domain.
Output：A (n) represents the actual value of the n-th moment step-length, and A (n) represents that this step value corresponds in universe of fuzzy sets
Value.
Ke, Ka are respectively quantizing factor.
2nd, the determination of inference rule
According to the variable quantity of negative ion concentration and the dutycycle adjusting step of previous moment, to determine the duty at this moment
Compare adjusting step.
Fuzzy rule：
(1) if, detect that external environment negative ion concentration is not reaching to setting reference value, continue original step-length adjustment
Direction, otherwise take opposite direction；
(2), from setting reference value remotely, larger step size is used to accelerate tracking velocity, when nearer from setting reference value,
Less step-length is used to scan for reduce hunting loss；
(3), when negative ion concentration varies widely in environment, system can make fast reaction.
Mentioned above principle is followed, designs control law form, it is as follows：
Note：NB, NM, NS, PS, PM, PB represent negative big respectively, negative small in bearing, just small, center, honest fuzzy concept, N,
Z, ZE, P represent negative respectively, zero, zero, positive fuzzy concept.
3rd, the establishment of membership function
Determine input/output amount fuzzy subset and domain
By linguistic variable E (n), A (n-1), A (n) are respectively defined as 5,3 and 7 fuzzy subsets, i.e.,：E (n)=
{ NB, NS, ZE, PS, PB }
A (n-1)={ N, Z, P }
A (n)={ NB, NM, NS, ZE, PS, PM, PB }
E (n) and A (n) domain are defined as -1 to+1；A (n-1) domain is defined as -0.5 to+0.5.
Determine membership function
Selection membership function is shaped as conventional triangle, and difference power E and step-length A membership function are shown in Figure 15-17 institutes
Show.
4th, de-fuzzy
For given input variable E (n) and A (n-l), fuzzy controller passes through the very big poles of Mamdani of the prior art
Small value fuzzy reasoning method makes inferences to obtain A (n).The output variable A (n) of fuzzy self optimizing control device membership function passes through
Min is operated and Max is operated to obtain.
By fuzzy reasoning process, the output quantity of fuzzy controller is fuzzy quantity, and these fuzzy quantities must be turned into simulating
Amount could complete control, therefore need the process of an ambiguity solution.The method of ambiguity solution of the present invention uses weighted mean method, weighting
The factor takes the degree of membership of the element itself of composition fuzzy control vector, and the computational methods of its ambiguity solution are as follows：
In above-mentioned formula, m is maximum effectively regular number, and ω k are weighted factors, and μ k are μ corresponding in membership function
Value.
Embodiment 3
Negative ion generating device operation principle is as follows：The device is supplied by wind-power electricity generation and solar power generation for battery
Electricity, battery output+12V arrive triode Qc colelctor electrode, and control system is passed through to negative ion concentration, ozone concentration etc. in air
The collection of parameter, and Qc base stages are given using output control signal after fuzzy control theory blurring to the parameter of collection, with the moment
Change the PWM ripples of dutycycle ratio to control the Qc conducting turn-off time, so it is accurate adjust anion generator produce bear from
Sub- concentration.
In the case of without departing substantially from the scope or spirit of the invention, the embodiment of description of the invention can be done more
Kind is improved and change, and this will be apparent to those skilled in the art.Other realities obtained by the specification of the present invention
It is apparent obtain for technical personnel to apply mode.Present specification and embodiment are only exemplary.
Claims (10)
1. a kind of portable negative ion generating means, including casing, it is characterized in that：The casing includes case lid, box main body, described
Case lid is hinged with box main body, and the case lid is provided with handle；Box main body includes battery, solar power system, wind-force hair
System, control system occur for electric system and anion；On the box main body front panel include power switch, light-emitting diode display with
And USB interface, the upper electricity of the power switch control negative ion generating device, light-emitting diode display pass through control system display device
State parameter, the USB interface are used for the data transfer with the external world；The solar power system, wind generator system pass through
Control system provides electric energy for anion generator.
2. portable negative ion generating means according to claim 1, it is characterized in that：The solar power system includes
Solar cell module, DC/DC types buck converter, battery charging circuit, storage battery charge control circuit；The solar-electricity
Pond component includes the connection in series-parallel control circuit of solar panel；The direct current that solar cell module changes solar energy is defeated
Enter into DC/DC type buck converters；DC/DC type buck converter output ends are by battery charging circuit and pass through battery
The control of charging control circuit, by the DC supply input by decompression into battery.
3. portable negative ion generating means according to claim 2, it is characterized in that：The DC/DC buck convertors
Switching tube Q, diode D, inductance L and electric capacity C, Von are supply voltage in circuit, and R is load resistance, and V0 is output voltage；
Under working condition, the conductings and cut-off of switching tube Q repeatedly, the switching of two kinds of different conditions, DC voltage is converted into pulse form
The voltage of formula, then filtered by L, C, direct voltage output is formed, when switching tube turns on, power supply fills to energy-storage travelling wave tube inductance L
Electricity, the electric current on inductance L gradually increases, and the inductive discharge when switching tube ends, and the electric current on inductance L is gradually reduced；Electric capacity
Strobe, reduce the ripple of the voltage in load.
4. portable negative ion generating means according to claim 2, it is characterized in that：The string of the solar panel is simultaneously
Joining control circuit includes box main body both sides setting solar panel, and wherein cell panel A and cell panel B series-parallel system is by two
Individual relay is controlled；When relay 1 is connected, and relay 2 connects 2 pin of normally-closed contact, two groups of solar panel is string
Connection mode combines；When relay 1 is connected, and relay 2 connects 3 pin of normally opened contact, two pieces of solar panels are parallel way group
Close；The turn-on and turn-off of relay 1 and relay 2 are by ARM9 control chips directly according to the magnitude of voltage and electric current of two cell panels
Value is controlled.
5. portable negative ion generating means according to claim 2, it is characterized in that：Further comprise data acquisition module
Block, the module mainly include voltage x current collection, the collection of intensity of illumination of solar panel and battery；In voltage data
Collection in use partial pressure acquisition mode；Collection to current data is closed-loop Hall current sensor to complete；Illumination
The acquisition module of intensity has been internally integrated a configurable silicon photoelectric diode and an electric current/frequency converter.
6. portable negative ion generating means according to claim 1, it is characterized in that：The wind generator system includes wind
Power generator, uncontrollable bridge rectifier, DC/DC converters, battery and control system；The electricity that wind-driven generator is sent
Become DC supply input DC/DC boost converters after rectified, the voltage after boosting is passed through control by DC/DC boost converters
The control input of system processed is into battery.
7. portable negative ion generating means according to claim 6, it is characterized in that：The DC/DC boost converters
Two switching tubes Ql, Q2 in circuit are connected on centre tapped primary both ends, in circuit work, two switches
Pipe alternate conduction, it is that Nl winding both ends form the square-wave voltage of opposite in phase respectively in the number of turn；Because the converter exports
Voltage is high pressure, so employing full bridge rectifier, voltage is born to reduce the reverse of each rectifying tube.
8. portable negative ion generating means according to claim 1, it is characterized in that：Further comprise DC/AC inverters,
The inverter uses voltage-type full bridge inverter；The inverter is modulated using the SPWM of single voltage polarity, the same bridge of inverter
Two switching device alternating break-makes, and be in complementary duty mode up and down of arm.
9. portable negative ion generating means according to claim 1, it is characterized in that：Anion occur system include bear from
Circuit and control circuit occur for son；Negative ion generating circuit passes through control circuit output anion；Electricity occurs for the anion
The linking relationship of element is as follows in road：Battery output+12V direct current ,+12V dc source can be changed into several kilovolts
High-voltage DC power supply；This+12V DC electricity is input to triode Qc colelctor electrode, and Qc base stage and control circuit link, Qc's
Emitter stage links with resistance R1 one end；The resistance R1 other ends link with resistance R2, diode D1 anodes；The resistance R2 other ends and electricity
R3 links are hindered, while are linked by electric capacity C1 and ground；Triode Q grounded emitter, triode Q base stage connect transformer T originals
The input of the winding of side one, output termination R4 one end of the winding；Q colelctor electrode connects the output of another winding of transformer T primary sides
End, while triode Qc emitter stage connects the input of the winding；Transformer T secondary output terminating diode D2 negative electrodes, electricity
Hinder R5, electric capacity C3 one end, another output end of transformer T secondary passes through electric capacity C2 and diode D2 anode, diode D3
Negative electrode links；Resistance R6 one end links with the resistance R5 other ends, the other end and resistance R7 one end, diode D3 anode chain
Connect.
10. the control method of the portable negative ion generating means according to claim any one of 1-9, it is characterized in that：It is logical
It is storage battery power supply to cross wind-power electricity generation and solar power generation, and battery output+12V arrives triode Qc colelctor electrode, control system
System uses fuzzy control theory mould by the collection to negative ion concentration, ozone concentration parameter in air to the parameter of collection
Output control signal gives Qc base stages after gelatinization, with the PWM ripples of time changing dutycycle ratio to control the Qc conducting turn-off time,
And then the accurate anion generator that adjusts produces negative ion concentration.
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| CN201711086503.5A CN107834360A (en) | 2017-11-07 | 2017-11-07 | Portable negative ion generating means and its control method |
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| CN201711086503.5A CN107834360A (en) | 2017-11-07 | 2017-11-07 | Portable negative ion generating means and its control method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109390849A (en) * | 2018-11-13 | 2019-02-26 | 广州健明希医疗仪器有限公司 | A kind of anion generating device for negative aeroion machine |
| CN109950794A (en) * | 2019-04-23 | 2019-06-28 | 合肥惠科金扬科技有限公司 | Anionic generating circuit and display device |
| CN110044996A (en) * | 2019-05-28 | 2019-07-23 | 南京信息工程大学 | Atmosphere negative ion concentration detection device |
| CN110311575A (en) * | 2019-07-22 | 2019-10-08 | 福建龙净环保股份有限公司 | Power control method and device, power-supply device and plasma generating equipment |
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| CN109390849A (en) * | 2018-11-13 | 2019-02-26 | 广州健明希医疗仪器有限公司 | A kind of anion generating device for negative aeroion machine |
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| CN109950794A (en) * | 2019-04-23 | 2019-06-28 | 合肥惠科金扬科技有限公司 | Anionic generating circuit and display device |
| CN110044996A (en) * | 2019-05-28 | 2019-07-23 | 南京信息工程大学 | Atmosphere negative ion concentration detection device |
| CN110311575A (en) * | 2019-07-22 | 2019-10-08 | 福建龙净环保股份有限公司 | Power control method and device, power-supply device and plasma generating equipment |
| CN110410979A (en) * | 2019-07-31 | 2019-11-05 | 广东美的制冷设备有限公司 | Control method, air cleaning unit, air conditioner and the medium of air cleaning unit |
| JP2022552036A (en) * | 2020-09-16 | 2022-12-15 | シェンチェン ケーイーエスディー テクノロジー カンパニー リミテッド | Laminar flow static eliminator circuit |
| JP7387766B2 (en) | 2020-09-16 | 2023-11-28 | シェンチェン ケーイーエスディー テクノロジー カンパニー リミテッド | Laminar flow static eliminator circuit |
| US12035450B2 (en) | 2020-09-16 | 2024-07-09 | Shenzhen Kesd Technology Co., Ltd | Laminar electrostatic eliminator circuit for eliminating static electricity in a space |
| CN113690737A (en) * | 2021-07-29 | 2021-11-23 | 南京工业大学 | Electric field enhanced type ion wind device powered by solar energy |
| CN113864966A (en) * | 2021-09-23 | 2021-12-31 | 宁波奥克斯电气股份有限公司 | Air supply control method and device, readable storage medium and air conditioner |
| CN113864966B (en) * | 2021-09-23 | 2023-02-24 | 宁波奥克斯电气股份有限公司 | Air supply control method and device, readable storage medium and air conditioner |
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Application publication date: 20180323 |