CN110158705A - A kind of lift selects excellent photovoltaic water pump system - Google Patents
A kind of lift selects excellent photovoltaic water pump system Download PDFInfo
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- CN110158705A CN110158705A CN201810127045.3A CN201810127045A CN110158705A CN 110158705 A CN110158705 A CN 110158705A CN 201810127045 A CN201810127045 A CN 201810127045A CN 110158705 A CN110158705 A CN 110158705A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 206
- 238000004891 communication Methods 0.000 claims abstract description 48
- 238000004458 analytical method Methods 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 241000112598 Pseudoblennius percoides Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/02—Public or like main pipe systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Electromagnetic Pumps, Or The Like (AREA)
Abstract
The invention discloses a kind of lifts to select excellent photovoltaic water pump system, is in charge of including solar cell array, photovoltaic water pump variable frequency inverter, water pump, the aqueduct connecting with water pump and multiple water outlets, is set to wireless communication and power supply module that each water outlet is in charge of solenoid valve at pipe water outlet, controls electromagnetic valve switch；The maximum power point of photovoltaic water pump variable frequency inverter real-time tracking solar cell array, by exporting determining voltage and frequency driving pump working after calculating analysis, the position of water outlet optimal on aqueduct is determined further according to the real-time revolving speed of water pump simultaneously, wireless serial module inside photovoltaic water pump variable frequency inverter is sent out the switch control signal with address code, water outlet be in charge of the wireless communication of water outlet installation and power supply module receive the radio signal of photovoltaic water pump variable frequency inverter after analysis and comparison are carried out to signal, determine the switch state of respective position, output respective switch control signal drive magnetic valve carries out switch motion later.
Description
Technical field
The present invention relates to solar energy photovoltaic system application controls field, relates in particular to a kind of lift and select excellent photovoltaic water pump
System.
Background technique
Since lift selects excellent photovoltaic water pump system that energy storage device is generally not added, abandons optical issue and energy utilization efficiency problem exists
It is generally existing phenomenon in photovoltaic water pump application system, therefore each equipment production commercial city is trying abandoning optical phenomenon to drop to most
It is low.Additionally, due to solar irradiation towards the uncertainty of the rule and weather condition fallen at liter sunset, lift selects excellent photovoltaic water pump system to exist
Pump head caused by federation's occurrence frequency changes during work and insufficient pressure, are not achieved expection so as to cause water supply
Effect, can not meet the normal production and living water of user.In well known technology, for improve photovoltaic module utilization efficiency,
The problems such as overcoming insufficient water mainly uses following three kinds of control programs: first is that using solar photovoltaic water pump clustered control, it is right
Photovoltaic module energy carries out reasonable distribution, second is that increasing photovoltaic module allocation ratio, it is ensured that even if in the insufficient situation of illumination
It also can bio-occlusion user water supply；Third is that mains hybrid is powered, water lift at any time can guarantee, the electric energy that solar components generate also can be complete
Portion utilizes.
Photovoltaic clustered control technology can be whole according to the strong and weak selection starting of sunlight first in well-known technique
Or part water pump, guarantee that water energy is enough and flowed out from upper water level water outlet, improve effect in component utilization efficiency, still
System structure is relative complex, and product cost is high, especially selects in excellent photovoltaic water pump system in the lift of middle and small scale, the warp of system
Ji property is mutually on duty.Next is exactly the scheme for increasing photovoltaic module allocation ratio, although also can guarantee a day water withdrawal, component is utilized
Efficiency is extremely low, and abandoning optical issue is very serious, and project cost economy is bad.It supplies water again by mains hybrid mode, equally deposits
In system Construction economy and problems such as maintenance management cost in the future.
Since most water systems do not need that water is mentioned to highest point again toward decentralization, such as give the use in a village
Family is supplied water, and has half people to live in 100m or less lift region, the other half people lives in the lift area below 100m or more 200m
Domain, then in system design, the place for not needing to mention in all water 200m high is supplied water down again, it is only necessary to which the water of half is mentioned
To the place of 200m high, the other half water mentions the place of 100m high, therefore " improved and used by height ", " low to propose low use ", and one
Aspect can reduce the waste of energy, on the other hand can also reduce the cost of part erection pipeline, reduction pipeline is in high pressure
The time of state, so that the effect that whole utilization efficiency, reliability, safety, the economy of system are all optimal.
Summary of the invention
It is an object of the invention in view of the above-mentioned defects in the prior art, provide a kind of lift to select excellent photovoltaic water pump system,
The situation for overcoming independent photovoltaic water pump of the existing technology that the scheme of frequency control is all used to solve solar illuminating deficiency
The operation problem of lower system, and the lift of water pump and its revolving speed is square directly proportional, therefore pump rotary speed declines, and directly results in
The defect of its lift decline.
To achieve the goals above, the technical scheme is that
A kind of lift selects excellent photovoltaic water pump system, including solar cell array, is built-in with the photovoltaic of inversion master control system circuit
Pump variable frequency inverter, water pump, the aqueduct connecting with water pump and the multiple water outlets being connected to aqueduct are in charge of, are set to
The wireless communication and power supply module that each water outlet is in charge of solenoid valve at pipe water outlet, controls electromagnetic valve switch；Photovoltaic water pump
The maximum power point of variable frequency inverter real-time tracking solar cell array, by exporting determining voltage and frequency after calculating analysis
Rate drives pump working, while the position of water outlet optimal on aqueduct, photovoltaic are determined further according to the real-time revolving speed of water pump
The wireless serial module of pump variable frequency inverter internal is sent out the switch control signal with address code, and water outlet is in charge of out
The wireless communication and power supply module installed at the mouth of a river carry out signal after receiving the radio signal of photovoltaic water pump variable frequency inverter
Analysis and comparison determine the switch state of respective position, export respective switch control signal drive magnetic valve later and are switched
Movement.
When solar irradiation intensity is high, photovoltaic water pump variable frequency inverter sends instruction by wireless serial signal and closes
The solenoid valve of all low water level water outlets, preferentially mentions the reservoir of full peak level, then successively fills related water storage down
Pond；If the morning sun rises, pump outlet pressure is relatively low, and photovoltaic water pump variable frequency inverter passes through wireless at this time
Serial data transceiver module is sent out control command and opens the solenoid valve that the water outlet of aqueduct bottom is in charge of, so that lowermost end
Being discharged the water outlet being in charge of can normally be discharged, and with the enhancing of Intensity of the sunlight, pump rotary speed increases, pump outlet pressure
Power increases, and photovoltaic water pump variable frequency inverter analyzes the water outlet lift demand of water pump speed and setting by calculating, and opens
It is accordingly discharged the solenoid valve for the water outlet being in charge of, the lower solenoid valve for being discharged and being in charge of water outlet is simultaneously closed off, with solar irradiation
The increase of intensity, the revolving speed and water supply lift of water pump are also stepped up, until reaching highest lift；When afternoon, the sun set
It waits, the course of work is opposite when pump working mode rises with the sun；In addition be exactly it is rain or shine indefinite in weather conditions, illumination is neglected
When neglecting weak by force, photovoltaic water pump variable frequency inverter automatically tracks solar energy input power and pump rotary speed, and controls corresponding high
Solenoid valve at degree is opened, remaining solenoid valve is closed so that pump outlet selection is in optimal water supply position, no matter therefore what
When the electric energy that generates of solar panel can obtain the utilization of maximal efficiency.
As improvement to above-mentioned technical proposal, the aqueduct is being provided with several check-valves, extreme lower position
Check-valves is located at the water outlet of water pump, remaining check-valves is located at the upper end for being discharged and being in charge of with aqueduct junction.Check-valves
Prevent the water on related water outlet from flowing back.
As improvement to above-mentioned technical proposal, which is exchange water pump.
As improvement to above-mentioned technical proposal, the photovoltaic water pump variable frequency inverter includes universal frequency converter and master control electricity
Road module；The output end of solar cell array is connected to the direct-flow input end of universal frequency converter, three intersections of universal frequency converter
Stream output end is correspondingly connected with the input terminal of water pump, the direct current light current power output end and RS485 communication interface of universal frequency converter
It is correspondingly connected with the corresponding port of governor circuit module, it is wireless that the USART communication port of governor circuit module is connected to actuating station
On the corresponding port of serial communication modular.
As improvement to above-mentioned technical proposal, the universal frequency converter includes rectifying anti-ifft circuit and inverter circuit, institute
Stating bridging between the anti-ifft circuit of rectification and inverter circuit has filter circuit；The wireless communication and power supply module include governor circuit mould
Block and the control terminal wireless serial communication module being connected with governor circuit module, the governor circuit module and the anti-reverse electricity of rectification
It is provided with direct current sample circuit between road, switch driving circuit is provided between inverter circuit, is set between U, V, W input terminal of water pump
It is equipped with alternating current sampling circuit；The output positive and negative charge of solar battery is correspondingly connected with the input terminal for rectifying anti-ifft circuit, rectification
The output end of anti-ifft circuit is correspondingly connected with the positive and negative anodes of filter circuit and is input to the input of inverter circuit as DC bus
End, the three-phase alternating current output end of inverter circuit are correspondingly connected with U, V, W input terminal of exchange water pump, the input of direct current sample circuit
End is connected to the output end for rectifying anti-ifft circuit, and the output end of direct current sample circuit is connected to the analog-to-digital conversion of governor circuit module
Interface, the input terminal of alternating current sampling circuit are correspondingly connected with the three-phase alternating current output end of inverter circuit, alternating current sampling circuit it is defeated
Outlet is connected to another group of analog-to-digital conversion interface of governor circuit module, the SPWM waveform output port connection of governor circuit module
To the input terminal of switch driving circuit, the switch control terminal of the output end connection inverter circuit of switch driving circuit, governor circuit
The USART serial communication interface of module is connected to the USART serial communication interface of control terminal wireless serial communication module.
The electric energy that solar cell array generates is by rectifying in anti-reverse circuit connection to system dc bus, on bus
Electric energy enters inverter circuit after being filtered by filter circuit, governor circuit module acquires solar energy by direct current sample circuit
It is analyzed after the voltage and current value of battery array input through calculating, drives inverter circuit to export relevant voltage by switch driving circuit
It is to exchange water pump power supply, while governor circuit module is closed according to the pump rotary speed and lift of setting with the alternating current of frequency
System, is sent each water outlet switch control signal by control terminal wireless serial communication module.
As improvement to above-mentioned technical proposal, it further includes the power supply of solar energy off-network that the lift, which selects excellent photovoltaic water pump system,
System, the solar energy off-grid power supply system include solar panel, controller and battery, the output end of solar panel
It is connected to the solar panels input terminal of controller, the positive and negative anodes of battery are connected to the battery input terminal positive and negative anodes of controller,
The direct current output control terminal of controller is connected to the input control end of solenoid valve, the USART serial communication interface connection of controller
To the USART serial communication interface of actuating station wireless serial communication module.
Solar energy off-grid power supply system is that actuating station wireless serial communication module and solenoid valve are powered, and wireless serial module is received
Signal content is sent to controller after to signal of communication, data are parsed by controller and execute corresponding work refers to
It enables.
Compared with prior art, the advantages and positive effects of the present invention are:
Lift of the invention selects excellent photovoltaic water pump system, by controlling the water outlet height of aqueduct, directly matching photovoltaic water
Revolution speed changes bring lift changes in flow rate, so that water outlet on aqueduct is always raised water pump water supply situation is optimal
On Cheng Gaodu, so that system can efficiently use the electric energy of photovoltaic module generation, while also meeting user's actual used water
Demand.(1) it can be effectively reduced the allocation ratio that solar energy lift selects photovoltaic module in excellent photovoltaic water pump system, lower and abandon light ratio
Example realizes the utilization of solar energy, to reduce the cost of investment that lift selects excellent photovoltaic water pump system to greatest extent；(2) being not necessarily to will
Whole water supply water down again after mentioning highest position, avoid energy dissipation；(3) using solar powered and wireless digital serial ports
The solenoid valve of control, without special laying current supply line and communication cable, the selection of pipeline upper water-out mouth position and solenoid valve are pacified
Dress is flexible and convenient；(4) power of energy real-time tracking sunlight automatically selects optimal lift opening solenoid valve and supplies water；(5)
It can be effectively relieved the pressure of water supply line bottom end, reduce pipeline due under long-term high pressure conditions the problem of bring maintenance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is system construction drawing of the invention；
Fig. 2 is circuit theory schematic diagram of the invention；
Fig. 3 is inversion master control system circuit and its connection relationship schematic diagram；
Fig. 4 is solenoid valve power supply and wireless data transceiver module schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
As shown in Figure 1,2,3, 4, lift of the invention selects excellent photovoltaic water pump system, including solar cell array 1, built-in
There are photovoltaic water pump variable frequency inverter 2, water pump 3, the aqueduct connecting with water pump 3 and and the water-supply-pipe of inversion master control system circuit
Multiple water outlets of road connection are in charge of, are set to each and are discharged and be in charge of solenoid valve 5 at pipe water outlet, the control switch of solenoid valve 5
Wireless communication and power supply module 6；The maximum power point of 2 real-time tracking solar cell array 1 of photovoltaic water pump variable frequency inverter,
By exporting determining voltage and the frequency driving work of water pump 3 after calculating analysis, while being determined further according to the real-time revolving speed of water pump 3
The position of optimal water outlet on aqueduct, the wireless serial module inside photovoltaic water pump variable frequency inverter 2 are sent out band
There is the switch control signal of address code, the wireless communication of water outlet installation is in charge of in water outlet and power supply module 6 receives photovoltaic water
Analysis and comparison are carried out to signal after the radio signal of pump frequency conversion inverter 2, determine the switch state of respective position, it is defeated later
Respective switch control signal drive magnetic valve 5 carries out switch motion out.The water intake end of water pump connects pond 7.
When solar irradiation intensity is high, photovoltaic water pump variable frequency inverter 2 sends instruction by wireless serial signal and closes
The solenoid valve 5 for closing all low water level water outlets, preferentially mentions the reservoir of full peak level, then successively fills related storage down
Pond；If the morning sun rises, 3 water outlet pressure of water pump is relatively low, and photovoltaic water pump variable frequency inverter 2 passes through at this time
Wireless serial data transmit-receive module is sent out control command and opens the solenoid valve 5 that the water outlet of aqueduct bottom is in charge of, so that
The water outlet that lowermost end water outlet is in charge of can be normally discharged, and with the enhancing of Intensity of the sunlight, 3 revolving speed of water pump increases, water pump 3
Water outlet pressure increases, and photovoltaic water pump variable frequency inverter 2 analyzes the water outlet lift of water pump speed and setting by calculating
It is required that opening the solenoid valve 5 for being accordingly discharged the water outlet being in charge of, the lower solenoid valve 5 for being discharged and being in charge of water outlet is simultaneously closed off, with
The increase of Intensity of the sunlight, the revolving speed and water supply lift of water pump 3 be also stepped up, until reach highest lift；Afternoon is too
When sun sets, the course of work is opposite when 3 working method of water pump rises with the sun；In addition be exactly weather conditions rain or shine
Indefinite, when illumination is dynamic, photovoltaic water pump variable frequency inverter 2 automatically tracks 3 revolving speed of solar energy input power and water pump,
And the opening of the solenoid valve 5 at corresponding height is controlled, remaining solenoid valve 5 is closed, so that the selection of 3 water outlet of water pump is in optimal water supply
Position, therefore whenever the electric energy that solar panel generates can obtain the utilization of maximal efficiency.
The aqueduct is being provided with several check-valves 4, the check-valves of extreme lower position in the water outlet of water pump 3,
Remaining check-valves is in charge of the upper end with aqueduct junction in water outlet.Check-valves 4 prevents the water on related water outlet from flowing back.
The water pump 3 is exchange water pump.
The photovoltaic water pump variable frequency inverter 2 include universal frequency converter 8 and governor circuit module 9, it is described wireless communication and
Power supply module 6 includes control terminal wireless serial communication module 10；The output end of solar cell array 1 is connected to universal frequency converter
8 direct-flow input end, the three-phase alternating current output end of universal frequency converter 8 are correspondingly connected with the input terminal of water pump 3, universal frequency converter 8
Direct current light current power output end and RS485 communication interface be correspondingly connected with the corresponding port of governor circuit module 9, governor circuit
The USART communication port of module 9 is connected on the corresponding port of control terminal wireless serial communication module 10.
The universal frequency converter 8 includes rectifying anti-ifft circuit 11 and inverter circuit 12, the anti-ifft circuit 11 of the rectification and inverse
12, power transformation road bridging has filter circuit 13；Direct current sampling is provided between the governor circuit module 9 and the anti-ifft circuit 11 of rectification
It is provided with switch driving circuit 15 between circuit 14, with inverter circuit 12, is provided with to exchange between U, V, W input terminal of water pump 3 and adopt
Sample circuit 16；The output positive and negative charge of solar battery 1 is correspondingly connected with the input terminal for rectifying anti-ifft circuit 11, rectifies anti-reverse electricity
The output end on road 11 is correspondingly connected with the positive and negative anodes of filter circuit 13 and is input to the input of inverter circuit 12 as DC bus
End, the three-phase alternating current output end of inverter circuit 12 are correspondingly connected with U, V, W input terminal of exchange water pump 3, direct current sample circuit 14
Input terminal be connected to the output end for rectifying anti-ifft circuit 11, the output end of direct current sample circuit 14 is connected to governor circuit module
9 analog-to-digital conversion interface, the input terminal of alternating current sampling circuit 16 are correspondingly connected with the three-phase alternating current output end of inverter circuit 12, hand over
The output end of stream sample circuit 16 is connected to another group of analog-to-digital conversion interface of governor circuit module 9, governor circuit module 9
SPWM waveform output port is connected to the input terminal of switch driving circuit 15, the output end connection inversion electricity of switch driving circuit 15
The switch control terminal on road 12, the USART serial communication interface of governor circuit module 9 are connected to control terminal wireless serial communication module
10 USART serial communication interface.
The electric energy that solar cell array 1 generates is connected on system dc bus by rectifying anti-ifft circuit 11, bus
On electric energy by filter circuit 13 be filtered after enter inverter circuit 12, governor circuit module 9 pass through direct current sample circuit
It is analyzed after the voltage and current value of 14 acquisition solar cell array inputs through calculating, inversion electricity is driven by switch driving circuit 15
It is to exchange water pump 3 to power, while governor circuit module 9 is according to the water pump of setting with the alternating current of frequency that road 12, which exports relevant voltage,
3 revolving speeds and lift relationship are sent each water outlet switch control signal by control terminal wireless serial communication module 10
It goes out.
As improvement to above-mentioned technical proposal, it further includes the power supply of solar energy off-network that the lift, which selects excellent photovoltaic water pump system,
System, the solar energy off-grid power supply system include solar panel 17, controller 18 and battery 19, solar panel 17
Output end be connected to the solar panels input terminal of controller 18, the positive and negative anodes of battery 19 are connected to the battery of controller 18
The direct current output control terminal of input terminal positive and negative anodes, controller 18 is connected to the input control end of solenoid valve 5, controller 18
USART serial communication interface is connected to the USART serial communication interface of actuating station wireless serial communication module.
Solar energy off-grid power supply system is that wireless serial communication module and solenoid valve are powered, and wireless serial module receives communication
Signal content is sent to controller 18 after signal, and data are parsed by controller 18 and executes corresponding work order.
System Working Principle is just: when solar irradiation intensity is high, photovoltaic water pump variable frequency inverter passes through wireless serial
Signal sends the solenoid valve that all low water level water outlets are closed in instruction, preferentially mentions the reservoir of full peak level, then successively
Related reservoir is filled down；If the morning sun rises, pump outlet pressure is relatively low, and photovoltaic water pump becomes at this time
Frequency inverter is sent out control command by wireless serial data transmit-receive module and opens the lowermost solenoid valve on aqueduct,
The water outlet of lowermost end is normally discharged, with the enhancing of Intensity of the sunlight, pump rotary speed increases, pump outlet
Pressure increases, and photovoltaic water pump variable frequency inverter analyzes the water outlet lift demand of water pump speed and setting by calculating, and beats
The solenoid valve for being accordingly discharged the water outlet being in charge of is opened, the lower solenoid valve for being discharged and being in charge of water outlet is simultaneously closed off, with sunlight
According to the increase of intensity, the revolving speed and water supply lift of water pump are also stepped up, until reaching highest lift；When afternoon, the sun set
It waits, the course of work is opposite when pump working mode rises with the sun；In addition be exactly it is rain or shine indefinite in weather conditions, illumination is neglected
When neglecting weak by force, photovoltaic water pump variable frequency inverter automatically tracks solar energy input power and pump rotary speed, and controls corresponding high
Solenoid valve at degree is opened, remaining solenoid valve is closed so that pump outlet selection is in optimal water supply position, no matter therefore what
When the electric energy that generates of solar panel can obtain the utilization of maximal efficiency.
Lift of the invention selects excellent photovoltaic water pump system and its pump head to select excellent control method, by controlling aqueduct
Water outlet height, directly match photovoltaic water pump rotation speed change bring lift changes in flow rate so that the water outlet on aqueduct
Mouth is always on the optimal lift of water pump water supply situation, so that system can efficiently use the electricity of photovoltaic module generation
Can, while also meeting the needs of user's actual used water.(1) it can be effectively reduced solar energy lift and select light in excellent photovoltaic water pump system
The allocation ratio of component is lied prostrate, lowers and abandons light ratio, the utilization of solar energy is realized to greatest extent, so that reducing lift selects excellent photovoltaic water
The cost of investment of pumping system；(2) without supplying water down again after whole water are mentioned highest position, energy dissipation is avoided；(3) it adopts
With the solenoid valve of solar powered and wireless digital serial ports control, it is not necessarily to specially lay current supply line and communication cable, on pipeline
The selection and solenoid valve convenient and flexible installation of water outlet position；(4) power of energy real-time tracking sunlight, automatically selects optimal
Lift opens solenoid valve and supplies water；(5) pressure of water supply line bottom end can be effectively relieved, reduce pipeline due to long-term high pressure shape
Under state the problem of bring maintenance.
Claims (6)
1. a kind of lift selects excellent photovoltaic water pump system, it is characterised in that: including solar cell array, be built-in with inversion master control system
Unite the photovoltaic water pump variable frequency inverter of circuit, water pump, the aqueduct being connect with water pump and be connected to aqueduct it is multiple out
Moisture pipe is set to wireless communication and power supply that each water outlet is in charge of solenoid valve at pipe water outlet, controls electromagnetic valve switch
Module；The maximum power point of photovoltaic water pump variable frequency inverter real-time tracking solar cell array, by being exported after calculating analysis
Determining voltage and frequency drive pump working, while determining water outlet optimal on aqueduct further according to the real-time revolving speed of water pump
Mouthful position, the wireless serial module inside photovoltaic water pump variable frequency inverter is sent out the letter of the switch control with address code
Number, the wireless communication that water outlet is installed is in charge of in water outlet and power supply module receives the radio signal of photovoltaic water pump variable frequency inverter
Analysis and comparison are carried out to signal afterwards, determine the switch state of respective position, export respective switch control signal driving electricity later
Magnet valve carries out switch motion.
2. lift according to claim 1 selects excellent photovoltaic water pump system, it is characterised in that: the aqueduct is being provided with
Several check-valves, the check-valves of extreme lower position are located at the water outlet of water pump, remaining check-valves is in charge of positioned at water outlet and water delivery
The upper end of pipeline junction.
3. lift according to claim 1 selects excellent photovoltaic water pump system, it is characterised in that: the water pump is exchange water pump.
4. lift according to claim 1 selects excellent photovoltaic water pump system, it is characterised in that: the photovoltaic water pump frequency conversion inversion
Device includes universal frequency converter and governor circuit module；The direct current that the output end of solar cell array is connected to universal frequency converter is defeated
Enter end, the three-phase alternating current output end of universal frequency converter is correspondingly connected with the input terminal of water pump, the direct current light current electricity of universal frequency converter
Source output terminal and RS485 communication interface are correspondingly connected with the corresponding port of governor circuit module, and the USART of governor circuit module is logical
Letter port is connected on the corresponding port of actuating station wireless serial communication module.
5. lift according to claim 4 selects excellent photovoltaic water pump system, it is characterised in that: the universal frequency converter includes whole
Flow anti-ifft circuit and inverter circuit, bridging has filter circuit between the anti-ifft circuit of the rectification and inverter circuit；The wireless communication
And power supply module includes governor circuit module and the control terminal wireless serial communication module being connected with governor circuit module, it is described
It is provided with direct current sample circuit between governor circuit module and the anti-ifft circuit of rectification, switch driving electricity is provided between inverter circuit
Alternating current sampling circuit is provided between road, with U, V, W input terminal of water pump；The output positive and negative charge of solar battery is correspondingly connected with
The input terminal for rectifying anti-ifft circuit, the output end for rectifying anti-ifft circuit are correspondingly connected with the positive and negative anodes of filter circuit and as direct current
Bus is input to the input terminal of inverter circuit, and the three-phase alternating current output end of inverter circuit is correspondingly connected with U, V, W of exchange water pump
Input terminal, the input terminal of direct current sample circuit are connected to the output end for rectifying anti-ifft circuit, and the output end of direct current sample circuit connects
It is connected to the analog-to-digital conversion interface of governor circuit module, the input terminal of alternating current sampling circuit is correspondingly connected with three intersections of inverter circuit
Output end is flowed, the output end of alternating current sampling circuit is connected to another group of analog-to-digital conversion interface of governor circuit module, governor circuit
The SPWM waveform output port of module is connected to the input terminal of switch driving circuit, and the output end of switch driving circuit connects inversion
The switch control terminal of circuit, the USART serial communication interface of governor circuit module are connected to control terminal wireless serial communication module
USART serial communication interface.
6. lift according to claim 5 selects excellent photovoltaic water pump system, it is characterised in that: the lift selects excellent photovoltaic water pump
System further includes solar energy off-grid power supply system, which includes solar panel, controller and storage
Battery, the output end of solar panel are connected to the solar panels input terminal of controller, and the positive and negative anodes of battery are connected to control
The direct current output control terminal of the battery input terminal positive and negative anodes of device processed, controller is connected to the input control end of solenoid valve, control
The USART serial communication interface of device is connected to the USART serial communication interface of actuating station wireless serial communication module.
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