CN206865162U - A kind of solar powered intelligent water body aeration system - Google Patents
A kind of solar powered intelligent water body aeration system Download PDFInfo
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- CN206865162U CN206865162U CN201720382063.7U CN201720382063U CN206865162U CN 206865162 U CN206865162 U CN 206865162U CN 201720382063 U CN201720382063 U CN 201720382063U CN 206865162 U CN206865162 U CN 206865162U
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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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
It the utility model is related to a kind of solar powered intelligent water body aeration system, one end of the output end connection MPPT maximum power point tracking control unit of solar battery group, one end of the other end connection charge-discharge control unit of MPPT maximum power point tracking control unit, the another both ends of charge-discharge control unit connect one end of batteries and inverter unit respectively, and the other end of inverter unit connects the feeder ear of the water-ploughing machine.In the utility model, the AC voltage quality that inverter unit exports system is more preferable, the voltage and current of solar battery group and batteries is constantly monitored, avoided putting and overcharged, improve service life, and system has three kinds of solar battery group, batteries and standby electricity power supply modes, it is easy to use and flexible, adapt to use in complex environment, be that a kind of timing detection water body state, raising solar battery efficiency, discharge and recharge and load driving are the intelligence system automatically controlled.
Description
Technical field
The utility model belongs to water oxygenation device structure technical field of improvement, especially a kind of solar powered intelligence
Water oxygenation system.
Background technology
When pond waters anoxic, it is necessary to carry out oxygenation operation to it, including chemical enhancement, mechanical enhancement, biological enhancementoxygen
Etc. several ways, wherein chemical enhancement is that some chemicals are launched into breeding water body, its meet water after occur chemical change and
Oxygen is discharged, this method usage amount is big, artificial high, and improper use easily causes harm;Biological enhancementoxygen is preferably to transplant pasture and water
Appropriate pasture and water are planted in breeding water body or think to increase the phytoplankton in water body, oxygenation is realized by its photosynthesis, should
The problem of easily there is pasture and water overgrowing in method miscarriage, influences illuminance, and water body deteriorates;Mechanical enhancement includes water pump circular oxygenation
And using aerator to carry out oxygenation, the latter is commonly used, that is, uses the mode such as suspension, fixed by aerator positioning and cultivation water
On body, more are installed according to certain area, the mode using machinery moves breeding water body, and superficial water and bottom water carry out convection current
Make water oxygenation.In recent years, just gradually substituted by the continuous transformation of technology, common aerator by water-ploughing machine, water-ploughing machine profit
With the characteristic of fluid, and the input driving water of low energy consumption produces motion on a large scale and circulation, superficial water to surrounding flowing and
Diffusion, bottom water constantly lifts supplement, forms upwelling, whole waters present flowing, stably, the situation that balances.
The power source of above-mentioned water-ploughing machine is electric power, but because the geographical position in pond is different, some local distribution are more tired
Difficulty, so some producers develop solar powered water-ploughing machine system, but these products, solar cell charge and discharge control is not
Good, detection means is single, can not form automaticity height, the intelligence system that automatic decision starts or closed.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided timing detection water body state, improves the sun
Energy battery efficiency, discharge and recharge and load driving are a kind of solar powered intelligent water body aeration system automatically controlled.
The utility model adopts the technical scheme that:
A kind of solar powered intelligent water body aeration system, including water-ploughing machine, solar battery group and batteries, its
It is characterised by:One end of the output end connection MPPT maximum power point tracking control unit of the solar battery group, maximum power point
One end of the other end connection charge-discharge control unit of tracing control unit, the another both ends of charge-discharge control unit connect storage respectively
One end of battery pack and inverter unit, the other end of inverter unit connect the feeder ear of the water-ploughing machine, the water-ploughing machine
Control terminal connects the input/output interface of central control unit, and the input/output interface of the central control unit is also respectively connected with use
In detection solar battery group output voltage solar battery group voltage detection unit, for detecting batteries output voltage
Accumulator battery voltage detection unit, the solar battery group for detecting solar battery group and battery current and electric power storage
Pond group current detecting unit.
Moreover, to be also connected with inverter unit and standby electric unit described in a standby electric unit equal for the feeder ear of the water-ploughing machine
One DC power supply terminal is set.
Moreover, the sensor unit includes the dissolved oxygen sensor module and temperature sensor mould being arranged in water body
Block..
Moreover, the input/output interface of the central control unit is also connected with a display unit.
Moreover, the inverter unit include being sequentially connected filtration module, to recommend boosting inverter module, single-phase full bridge inverse
It is input to become module and low-pass filtering module, filtration module, and low-pass filtering module is output end.
Moreover, the charge-discharge control unit is using lead acid battery charge special chip UC3906 as core.
Moreover, the solar battery group voltage detection unit and accumulator battery voltage detection unit use parallel resistance
Partial pressure method detection output voltage, the divider resistance in each unit connects center with filter capacitor by a voltage follower
The input/output interface of control unit.
Moreover, solar battery group and battery current detection unit are using linear current sensing IC ACS712 as core.
Moreover, the central control unit connects the control terminal and standby electricity of water-ploughing machine by a driving switch unit respectively
Unit, driving switch unit include drive module and handover module, drive module using MOSFET driving chips TC4422 as core,
Handover module includes photoelectrical coupler, triode, relay and fly-wheel diode, and three photoelectrical couplers are by central control unit
Three control signals of output carry out coupling processing, then connect three relays respectively after triode, fly-wheel diode
Three coils, three relays realize the power switching of solar battery group, batteries and standby electric unit.
The advantages of the utility model and good effect are:
In the utility model, inverter unit is mainly formed by recommending boosting inverter module and single-phase full bridge inversion module,
The AC voltage quality that combination exports system is more preferable, and the voltage and current of solar battery group and batteries is entered
Row constantly monitors, and avoided putting and overcharged, and improves service life, and system has solar battery group, batteries and standby
Three kinds of power supply modes of electricity consumption, it is easy to use and flexible, adapt to use in complex environment, in addition, solar battery group is using most
High-power tracing control unit is controlled, and specifically used conductance increment method algorithm, is improved control accuracy, is passed through dissolving
Lambda sensor and temperature sensor carry out water body detection and automatic start or closing water-ploughing machine, and in summary, the utility model is
A kind of timing detection water body state, raising solar battery efficiency, discharge and recharge and load driving are the intelligence system automatically controlled
System.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of Fig. 1 inverter unit;
Fig. 3 is the schematic diagram of the dissolved oxygen sensor module in Fig. 1 sensor unit;
Fig. 4 is the schematic diagram of the temperature sensor module in Fig. 1 sensor unit;
Fig. 5 is Fig. 1 solar battery group voltage detection unit and the schematic diagram of accumulator battery voltage detection unit;
Fig. 6 is Fig. 1 solar battery group and the schematic diagram of battery current detection unit;
Fig. 7 is the schematic diagram of Fig. 1 charge-discharge control unit;
Fig. 8 is the schematic diagram of the drive module in Fig. 1 driving switch unit;
Fig. 9 is the schematic diagram of the handover module in Fig. 1 driving switch unit;
Figure 10 is the schematic diagram of the 12V Voltage stabilizing modules of Fig. 1 DC power supply terminal connection;
Figure 11 is the schematic diagram of the 5V Voltage stabilizing modules of Fig. 1 DC power supply terminal connection.
Embodiment
With reference to embodiment, following embodiments, which are illustrative, are not limited is further illustrated to the utility model
, it is impossible to limit the scope of protection of the utility model with following embodiments.
A kind of solar powered intelligent water body aeration system, as shown in Fig. 1~11, including water-ploughing machine, solar cell
Group and batteries, innovation of the present utility model are:The output end connection MPPT maximum power point tracking of the solar battery group
One end of control unit, one end of the other end connection charge-discharge control unit of MPPT maximum power point tracking control unit, discharge and recharge
The another both ends of control unit connect one end of batteries and inverter unit respectively, described in the other end connection of inverter unit
The feeder ear of water-ploughing machine, the input/output interface of the control terminal connection central control unit of the water-ploughing machine, the central control unit
Input/output interface be also respectively connected with solar battery group voltage detecting list for detecting solar battery group output voltage
Member, the accumulator battery voltage detection unit for detecting batteries output voltage, for detecting solar battery group and electric power storage
The solar battery group and battery current detection unit of pond group electric current.
In the present embodiment, the feeder ear of the water-ploughing machine is also connected with a standby electric unit, the inverter unit and standby
Electric unit is respectively provided with a DC power supply terminal.The sensor unit includes dissolved oxygen sensor module and the temperature being arranged in water body
Spend sensor assembly.The input/output interface of the central control unit is also connected with a display unit.
The inverter unit include be sequentially connected filtration module, recommend boosting inverter module, single-phase full bridge inversion mould
Block and low-pass filtering module, filtration module are input, and low-pass filtering module is output end.The charge-discharge control unit is with lead
Acid accumulator charging special chip UC3906 is core.Solar battery group voltage detection unit and the accumulator battery voltage inspection
Unit is surveyed using the partial pressure method detection output voltage of parallel resistance, the divider resistance in each unit passes through a voltage follow
Device connects the input/output interface of central control unit with filter capacitor.Solar battery group and battery current detection unit
Using linear current sensing IC ACS712 as core.
The central control unit connects the control terminal of water-ploughing machine and standby electric unit respectively by a driving switch unit,
Driving switch unit includes drive module and handover module, and drive module is using MOSFET driving chips TC4422 as core, switching
Module includes photoelectrical coupler, triode, relay and fly-wheel diode, and three photoelectrical couplers export central control unit
Three control signals carry out coupling processing, then connect the three of three relays respectively after triode, fly-wheel diode
Individual coil, three relays realize the power switching of solar battery group, batteries and standby electric unit.
Said structure is specifically described below in conjunction with the accompanying drawings:
Model TL075 selected by solar photovoltaic cell panel, required solar cell module serial number are 1, and number in parallel is
4, the power of required solar cell array is 300W.Batteries are 12V using capacity, 150Ah maintenance-free lead acid
Battery.
For central control unit using Atmega128 single-chip microcomputers as core, it is the high property of the AVR risc architectures based on enhancing
8 energy, low-power consumption COMS microcontrollers, by the way that the CPU RISC of 8 and In-System Programmable flash are integrated in into a core
In piece, turn into the powerful single-chip microcomputer of One function, flexible and low cost solution party is provided for many embedded Control applications
Case.
The conductance increment algorithm software module for realizing MPPT maximum power point tracking is pre-stored in central control unit.Photovoltaic
The power output of battery is largely influenceed by intensity of sunshine and temperature.When environmental conditions such as intensity of illumination, temperature
During change, the output characteristics and power output of photovoltaic battery array can also change, only in the magnitude of voltage of fixed output,
Photovoltaic permutation could export the performance number of maximum, and now the operating point of photovoltaic array is at the top of output power curve
Point, and this point is exactly maximum power point (Maximum Power Point, MPP).It is inevitable if adjusting maximum power point not in time
The reduction of system effectiveness can be caused, even in same intensity of illumination with a temperature of, because load is different, the power output of array
It is different, if it be directly connected with load, cannot ensures that array is operated on maximum power point, so as to cause power
Loss.Therefore, for photovoltaic generating system, the optimal working condition of photovoltaic cell should be found, to greatest extent will
Luminous energy changes into electric energy.Therefore changed by detecting external environment condition in real time come the operating point of dynamic regulation photovoltaic array, make photovoltaic
System output power is always held at maximum power point, is called maximum power point tracking technology.
Conductance increment method (Incremental Conductance, INC) is one of conventional algorithm of MPPT controls.It is
The tracking of maximum power point is completed by comparing the method for solar cell transient immitivity and impedance variable quantity[30-33].By light
The P-U characteristic curves for lying prostrate battery understand that it is the unimodal curve that a single order can continuously be led, at maximum power point, power pair
The derivative of voltage is zero.That is, the tracking of maximum power point is substantially exactly to find the point for meeting dP/dU=0.Conductance increases
The advantages of amount method is the change direction in subsequent time reference voltage by the transient immitivity at the moment and the size of impedance variable quantity
Determine, do not influenceed by the quiescent potential and power of previous moment, be not in thus erroneous judgement, when intensity of illumination converts
System can adapt in time when comparing rapid[35].This just determines that conductance increment method has control accuracy high, and voltage pulsation is smaller
Feature.
The multiple factors such as integrated system realization, control accuracy, control cost, tracking velocity, the system use conductance increment
Method realizes MPPT maximum power point tracking.
Push-pull type boosting inverter module as shown in Figure 2, following four work can be divided into according to the conducting situation of switching tube
State:
(1) Q1 is turned on, Q2 shut-offs:Because Q1 is turned on, NP1 produces corresponding voltage, and caused induced voltage makes in winding
D1 is turned on, and is output to after inductance L1 storage part energies in C1 and load, Q2 now is off-state.
(2) Q1 is turned off, and Q2 is not turned on also:Transformer produces leakage inductance, and leakage inductance makes winding polarity become anti-, caused
The polarity of Q2 both end voltages also changes, diode D4 turn on and have electric current by and reach the input of power supply, output end
Electric current passes through diode D2.
(3) Q1 ends, Q2 conductings, diode D2 conductings, has electric current by D2 and inductance L1, L1 storage energy, by L1
The function of current in load.
(4) Q2 ends, when Q1 is not turned on still;Situation now is similar with state (2), and polarity of transformer is reverse, and two
Pole pipe D3 is turned on, and electric current will pass through D3 and reach input, then flow to output end by diode, electric current.
These four states above, it is exactly the working condition of push-pull circuit a cycle.
Single-phase full bridge inversion module as shown in Figure 2, it can regard as and be made up of two half-bridge inversion circuits.Power switch
Pipe Q3 and Q4 are complementary, and Q5 and Q6 are complementary, and its off state is controlled by pwm signal.Power switch pipe Q3 and Q6 are turned on, output voltage
Equal to the DC voltage of input;Power switch pipe Q4 and Q5 are turned on, and the DC voltage that output voltage is equal to input is multiplied by negative one.
Dissolved oxygen is to influence Water quality key factor, so using dissolved oxygen DO as predominantly detecting parameter.The present embodiment
As shown in figure 3, choosing Switzerland HAMILTON OXYSNS120 dissolved oxygen sensors, it is the non-maintaining DO of in the market first item
Sensor, it is not necessary to more mold changing or electrolyte.The water quality monitoring of reservoir, waste water, fish pond is widely used in, in its internal also one
The temperature-compensating put.Its DO measurement range is the resolution ratio from 0.0ppm to 40.0ppm, and its precision is 0.01ppm.Internal temperature
Degree electrode is NTC22K, and temperature range is -5.0 DEG C to 100 DEG C, and it is 0.1 DEG C that temperature, which differentiates road, and signal output is 0- all the way
20mA isolation electric current outputs.
Because the signal of OXYSNS120 outputs is very small, only milliampere level, therefore need to be amplified.Here AD620 is used
The voltage signal that the OXYSNS120 signals exported are converted into being convenient for measuring by amplifier, delivers to Chip Microcomputer A/D module after filtered
In be AD converted.The gain of this amplifying circuit is determined by AD620 outer meeting resistance R3, gain G=49.4/R1+ 1, this
In allow gain be 100, so R1=0.5k Ω.Then current signal is converted to the acceptable voltage of single-chip microcomputer with resistance R4
Signal, single-chip microcomputer is defeated by by PA0 oral instructions, so completes corresponding signal transacting.
Because water temperature is to influence the important element of Dissolved Oxygen in Water content, saturated dissolved oxygen of the water body under different water temperatures contains
Amount is different, and different fingerlings is aerobic and different at different temperatures, therefore system will root at different temperature
Different dissolved oxygen upper and lower limits is set according to actual conditions, foster aqueous bio is lived in optimum environment to ensure.So
Temperature detection is essential in systems.
As shown in figure 4, temperature sensor is the DS18B20 of dallas semiconductor company production, it is a numeric type temperature
Sensor is spent, is not required to without analog to digital conversion circuit, during use plus any peripheral cell, single-chip microcomputer can with an I/O mouth (PA1)
To be communicated with DS18B20, operating voltage range 3V-5.5V, detection temperature scope is -55 DEG C -+125 DEG C, and temperature resolution is most
Up to 0.0625 DEG C, output voltage is 0-5V.
Solar battery group output voltage and batteries output voltage beyond single-chip microcomputer detection range, single-chip microcomputer without
Fa Fafa to it directly to sampling, so using the partial pressure method of simultaneously the United Nations General Assembly's resistance come the two voltages in the system.In order that
The value detected is more stable, adds voltage follower LM358, and adds filter capacitor in output end, eliminates disturbance
Signal, beneficial to the correct operation of SCM program, the stabilization of system.In wherein Fig. 5, the detection of PA2 mouths is solar battery group
Output voltage, similarly batteries output voltage detection it is also identical with Fig. 5, there is a PA4 mouths (output for batteries
Voltage detecting circuit is identical with Fig. 5, is not drawn into accompanying drawing).
As shown in fig. 6, electricity is exported to solar battery group output current and batteries using ACS712 current sensors
Stream is detected, and the supply voltage of ACS712 work needs 5V single supplies, and pin 1,2,3,4 is the defeated of two groups of electric currents to be measured respectively
Enter end and output end, and have embedded with safety.Its internal also resistance buffer amplifier, pass through additional simple LPF electricity
The output attenuatoin that road can eliminate chip internal resistance and interface load partial pressure is brought.
Charge-discharge control unit is as shown in fig. 7, charging process is divided into three charged states:High current constant-current charge state,
High voltage overcharge condition and low-voltage constant voltage floating charge state, belong to typical three stage charging method.
UC3906 is the voltage that battery is detected using resistance pressure-dividing network, then by true come comparison with reference voltage
Fixed preferable charging current, the switching parameter such as voltage and maximum charging current.The value of divider resistance ginseng related to battery
Number is relevant.The parameter of battery is:Overcharged voltage is 30V, float charge voltage 27.6V, maximum charging current 25A, overcharges end
Only electric current is 2.5A.The parameter of each resistance is respectively:RA=162k Ω, Rb=54k Ω, RC=9k Ω, RD=211k Ω, RS=
0.01Ω。
In order to understand the situation of detected parameters at any time, system adds parameter display function.In the system
As chip of LCD, it belongs to character liquid crystal and shown middle use LCD12864, is the most frequently used in single chip application design
Information display devices.
Water-ploughing machine and single-chip microcomputer are respectively high power high current, the state of weakness circuit, be must have between the two certain
Isolation.Therefore use special MOSFET driving chips, selection be Microchip companies TC4422 chips, the chip
It is the non-return mosfet driver of 9A high speeds, can drives high-power.Circuit diagram as shown in figure 8, TC4422 input with
The PWM output ends of Atmega128 single-chip microcomputers are connected, and output end connects the resistance of 10 ohm and is connected with MOSFET grid
So as to drive MOSFET.
Handover module is as shown in figure 9, mainly by Phototube Coupling, signal amplification, relay group into.Phototube Coupling light thermocouple
Clutch realizes that it can have good electrical isolation effect to input and output signal.But the output current of photoelectrical coupler compared with
Small, it is necessary to be amplified with triode to electric current, so as to drive relay, at the same time, relay is inductive load, will also be
The interface of a relay fly-wheel diode in parallel.
Because single-chip microcomputer and some peripheral interface circuit normal works need 12V and 5V voltage, and the source that powers is too
Positive energy battery or battery tension, magnitude of voltage are larger and unstable.Therefore, it is necessary to the voltage that photovoltaic cell or battery are exported
It is converted into stable 12V and 5V voltage-stabilized power supplies.12V and 5V voltage conversion are respectively completed using 7812 and LM2576 herein.
7812 can be applied to various power supply stabilization circuits, and output stability is good.LM2576 operating efficiencies are high, and energy consumption is low, and it inputs electricity
The burning voltage of exportable+5V during 7-40V is pressed in, is fully able to the requirement for meeting steady pressure of system power supply, circuit diagram such as Figure 10,
Shown in 11.
Before system operation initializing set will be carried out to ATMEGA128 each pin, internal storage etc..
(1) pin is set
Atmega128 PA mouths are set to data input port in such a system.PA0 to PA6 is respectively as dissolved oxygen, water
The input of temperature, solar-energy photo-voltaic cell voltage, solar-energy photo-voltaic cell electric current, battery tension and storage battery flow data
Mouthful.PB mouths, PC mouths, PD, PE mouth are set to export.PB0 to PB2 controls water-ploughing machine driving relay RL1, supplying power for photovoltaic cell respectively
With storage battery power supply selective relay RL2, solar-electricity and civilian standby electricity selective relay RL3.PC0 to PC2 is corresponded to respectively
Realize two groups of MOSFET pipes SPWM control delivery outlets of PWM controls delivery outlet, inverter of MPPT maximum power point tracking.PD0 is timing
The device time controls delivery outlet to delivery outlet, PD3-PD7 for liquid crystal display signal.PE is display circuit output port.
(2) timer selection
Time interval and the MPPT maximum power point tracking of parameters detection are respectively set from timer 0 and timer 2
Time interval.The mode of operation of timing elects comparison match pattern, abbreviation ctc as.Work in such a mode, if the time of setting
Reach, then timer can be reset and propose interrupt requests to main program, the initialization in subsequent main program can think highly of to deposit
It is new to replicate, reopen timing function.
(3) PWM mode selects
For system from timer/counter 1 (T/C1) generation PWM ripple control maximum power point duty cycle of switching, it is fixed to set
T/C1 is operated in quick PWM mode, PWM caused by output on ATMEGA128 the 15th pin OC1A.Corresponding register-bit
It is arranged to:WGM11:0=3, COM1A1:0=2.T/C3 is arranged to work in phase only pupil filter PWM mode, complete for controlling
MOSFET break-make in bridge inverter circuit.In this mode, obtained PWM waveform phase and precision is all more accurate for work.Phase
The register-bit answered is arranged to:WGM11:0=1, COM1A1:0=2.
(4) ADC is changed
ATMEGA128 has 10 SAR ADCs.It can detect the input from port A on 8 tunnels simultaneously
Voltage.The transformation result of ten can be temporarily stored in data register ADCH (high eight-bit) and ADCL (low eight).Posted by setting
ADLAR flag bits in storage ADMUX carry out the mode of change data storage, by ADLAR flag bit sets in the system, allow and turn
Change data and be in left-justify mode, this mode is more convenient reading data, only reads the value of eight in ADCH, it is not necessary to
Read ADCL.
In addition, also need that startup is converted to the set of ADSC flag bits and so could complete single analog-to-digital conversion, it is next
Also needed ADSC set before secondary conversion.In order to meet the requirement of ADC translation functions 2.56V reference voltage in ATMEGA128 pieces,
Then need register ADMUX REFS1 and REFS0 all set.System can detect whether analog-to-digital conversion is completed by inquiring about,
Corresponding processing routine is carried out after completing.
In systems, with solar energy it is mainly load supplying, civilian stand-by power supply is auxiliary, and system is carried out initially first
Change, then open interruption, interruption includes two timer interruptions, an external interrupt, and two timer interruptions are respectively intended to set
The time interval of parameters detection and the time of MPPT maximum power point tracking.After initialization, system master controller receives detection water
The digital parameters signal that matter sensor is sent, and by compared with the pre-set value of system (dissolved oxygen concentration, temperature etc.),
Judge whether that output loading drive signal opens water-ploughing machine and carries out water oxygenation;Solar electric power supply system port of export electricity is detected simultaneously
Parameters in pressure and sample battery group, judge whether batteries need to receive with this and carry out this solar energy power generating
Power source charges and call charging subprogram, and system power supply power supply (solar-energy photo-voltaic cell, battery, stand-by power supply) is entered
Row effectively switching.When master controller judges that water quality parameter (particularly dissolved oxygen concentration) is less than setting value, output control signal
Drive aeration system operation;When master controller judges that solar electric power supply system output voltage is equal to setting value, system power is led to
Solar electric power supply system is crossed to provide;Otherwise, output switching signal, stand-by power supply power supply is switched to.
In the utility model, inverter unit is mainly formed by recommending boosting inverter module and single-phase full bridge inversion module,
The AC voltage quality that combination exports system is more preferable, and the voltage and current of solar battery group and batteries is entered
Row constantly monitors, and avoided putting and overcharged, and improves service life, and system has solar battery group, batteries and standby
Three kinds of power supply modes of electricity consumption, it is easy to use and flexible, adapt to use in complex environment, in addition, solar battery group is using most
High-power tracing control unit is controlled, and specifically used conductance increment method algorithm, is improved control accuracy, is passed through dissolving
Lambda sensor and temperature sensor carry out water body detection and automatic start or closing water-ploughing machine, and in summary, the utility model is
A kind of timing detection water body state, raising solar battery efficiency, discharge and recharge and load driving are the intelligence system automatically controlled
System.
Claims (10)
1. a kind of solar powered intelligent water body aeration system, including water-ploughing machine, solar battery group and batteries, it is special
Sign is:The solar battery group output end connection MPPT maximum power point tracking control unit one end, maximum power point with
One end of the other end connection charge-discharge control unit of track control unit, the another both ends of charge-discharge control unit connect electric power storage respectively
One end of pond group and inverter unit, the other end of inverter unit connect the feeder ear of the water-ploughing machine, the control of the water-ploughing machine
The input/output interface of connection central control unit in end processed, the input/output interface of the central control unit, which is also respectively connected with, to be used for
Detect the solar battery group voltage detection unit of solar battery group output voltage, for detecting batteries output voltage
Accumulator battery voltage detection unit, the solar battery group for detecting solar battery group and battery current and battery
Group current detecting unit and sensor unit.
A kind of 2. solar powered intelligent water body aeration system according to claim 1, it is characterised in that:The cultivated water
The feeder ear of machine is also connected with a standby electric unit, and the inverter unit and standby electric unit are respectively provided with a DC power supply terminal.
A kind of 3. solar powered intelligent water body aeration system according to claim 2, it is characterised in that:The sensing
Device unit includes dissolved oxygen sensor module and the temperature sensor module being arranged in water body.
A kind of 4. solar powered intelligent water body aeration system according to claim 3, it is characterised in that:The center
The input/output interface of control unit is also connected with a display unit.
5. a kind of solar powered intelligent water body aeration system according to claim 1 or 2 or 3 or 4, its feature exist
In:Filtration module that the inverter unit includes being sequentially connected, recommend boosting inverter module, single-phase full bridge inversion module and low
Pass filtering module, filtration module are input, and low-pass filtering module is output end.
A kind of 6. solar powered intelligent water body aeration system according to claim 5, it is characterised in that:The charge and discharge
Electric control unit is using lead acid battery charge special chip UC3906 as core.
A kind of 7. solar powered intelligent water body aeration system according to claim 5, it is characterised in that:The sun
Energy battery voltage detection unit and accumulator battery voltage detection unit detect output voltage using the partial pressure method of parallel resistance,
The input and output that divider resistance in each unit connects central control unit by a voltage follower with filter capacitor connect
Mouthful.
A kind of 8. solar powered intelligent water body aeration system according to claim 5, it is characterised in that:Solar-electricity
Pond group and battery current detection unit are using linear current sensing IC ACS712 as core.
A kind of 9. solar powered intelligent water body aeration system according to claim 5, it is characterised in that:The center
Control unit connects the control terminal of water-ploughing machine and standby electric unit respectively by a driving switch unit, and driving switch unit includes
Drive module and handover module, for drive module using MOSFET driving chips TC4422 as core, handover module includes photoelectric coupling
Device, triode, relay and fly-wheel diode, three control signals that three photoelectrical couplers export central control unit are entered
Row coupling processing, then connect three coils of three relays respectively after triode, fly-wheel diode, three relays
Device realizes the power switching of solar battery group, batteries and standby electric unit.
A kind of 10. solar powered intelligent water body aeration system according to claim 1, it is characterised in that:Center control
The conductance increment algorithm software module for realizing MPPT maximum power point tracking is pre-seted in unit processed.
Priority Applications (1)
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CN201720382063.7U CN206865162U (en) | 2017-04-12 | 2017-04-12 | A kind of solar powered intelligent water body aeration system |
Applications Claiming Priority (1)
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CN201720382063.7U CN206865162U (en) | 2017-04-12 | 2017-04-12 | A kind of solar powered intelligent water body aeration system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108353845A (en) * | 2018-03-26 | 2018-08-03 | 飞力泵业有限公司 | Solar energy water vehicle type aerator and fishery cultivating system |
CN114634213A (en) * | 2022-05-20 | 2022-06-17 | 湖南省正源储能材料与器件研究所 | Solar water purification system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108353845A (en) * | 2018-03-26 | 2018-08-03 | 飞力泵业有限公司 | Solar energy water vehicle type aerator and fishery cultivating system |
CN114634213A (en) * | 2022-05-20 | 2022-06-17 | 湖南省正源储能材料与器件研究所 | Solar water purification system |
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