CN110158705A - A kind of lift selects excellent photovoltaic water pump system - Google Patents

A kind of lift selects excellent photovoltaic water pump system Download PDF

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Publication number
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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CN
China
Prior art keywords
water pump
circuit
module
photovoltaic
output
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CN201810127045.3A
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Chinese (zh)
Inventor
杨建国
李有灵
李泽
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Yunnan Junzhao Energy Co Ltd
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Yunnan Junzhao Energy Co Ltd
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Priority to CN201810127045.3A priority Critical patent/CN110158705A/en
Publication of CN110158705A publication Critical patent/CN110158705A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00Water main or service pipe systems
    • E03B7/02Public or like main pipe systems
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00Water main or service pipe systems
    • E03B7/07Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons, valves, in the pipe systems

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

A kind of lift selects excellent photovoltaic water pump system
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.
CN201810127045.3A 2018-02-08 2018-02-08 A kind of lift selects excellent photovoltaic water pump system Pending CN110158705A (en)

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