CN107242107A - A kind of photovoltaic water-raising irrigation system - Google Patents
A kind of photovoltaic water-raising irrigation system Download PDFInfo
- Publication number
- CN107242107A CN107242107A CN201710605921.4A CN201710605921A CN107242107A CN 107242107 A CN107242107 A CN 107242107A CN 201710605921 A CN201710605921 A CN 201710605921A CN 107242107 A CN107242107 A CN 107242107A
- Authority
- CN
- China
- Prior art keywords
- controller
- water
- cistern
- power supply
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of photovoltaic water-raising irrigation system, including Power Supply Assembly, energy storage component, impoundment element and irrigation assembly；Energy storage component includes capacitor and the first controller in parallel, the batteries electrically connected with the first controller；Impoundment element includes cistern, the level sensor in cistern, the second controller electrically connected with level sensor, the water supplying unit being connected with second controller, and water supplying unit is connected with cistern.The present invention collectively constitutes the energy storage component of mixing by the way that capacitor and the first controller and batteries are linked together, and Stability Analysis of Structures, charging rate is fast, and service life is long；Realized and irrigated using the hybrid energy-storing assembly power supply simultaneously, reduce water pump and connect impact of the moment to battery, prolonging service life of battery, it can guarantee that and carry out intelligent irrigation according to crop water requirement, save considerably water resource, improve running efficiency of system and stability.
Description
Technical field
The present invention relates to the field of pumping up water for irrigation, and in particular to a kind of photovoltaic water-raising irrigation system.
Background technology
In recent years, with the reduction of cost for solar power generation, occur in that part provides the drip irrigation system of electric energy with solar energy,
But most occupation of land problems for not considering photovoltaic module are big using greenhouse with the development of warmhouse booth and photovoltaic greenhouse
Canopy headroom lays photovoltaic array, can effectively solve warmhouse booth from electricity consumption and Irrigation Problems.
A kind of China of entitled " photovoltaic pumping drip irrigation system " Application No. " CN201420289356.7 " is real
A kind of photovoltaic pumping drip irrigation system is provided with new patent, by photovoltaic array, reversible transducer, battery, is pumped up water
Pump, power distribution cabinet, cistern etc. are constituted, and can solve in the case of no power supply during cistern is anhydrous and grid-connected, to pass through battery
Power supply, which is realized, irrigates, it is ensured that irrigation equipment routinizes operation.But, the stability of equipment is not high in the patent, irrigation effect compared with
Difference, because batteries to store energy has charging and discharging currents limitation, charging interval length, the low shortcoming of power density, is starting water pump moment pair
Battery impact is big, causes service lifetime of accumulator to shorten, it is impossible to reach water pump stability requirement.
There is certain defect as energy storage device using battery：On the one hand, there is electrochemical reaction in internal storage battery, fill
The velocity of discharge is slow, it is necessary to which the accumulator capacity of configuration is bigger than normal；On the other hand, accumulator cell charging and discharging number of times is limited, and service life is short,
Photovoltaic generating system operating cost will be increased by often changing battery.Ultracapacitor has that the fast power of charge/discharge rates is big, make
With long lifespan and free of contamination advantage, it is especially suitable for doing the energy storage device of photovoltaic generating system.
The content of the invention
It is an object of the invention to provide the good photovoltaic water-raising irrigation system of a kind of Stability Analysis of Structures, irrigation effect.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
The energy storage component includes capacitor and the first controller in parallel, the battery electrically connected with first controller
Group, first controller, for monitoring in the capacitor and the batteries voltage and to the capacitor and described
Batteries carry out discharge and recharge, are electrically connected after the capacitor and first controller parallel connection with the Power Supply Assembly；
The impoundment element includes the water level biography that cistern, being used in the cistern monitor water level in the cistern
Sensor, the second controller electrically connected with the level sensor, be connected with the second controller for for the retaining
The water supplying unit that pond is supplied water, the water supplying unit is connected with the cistern, the second controller and Power Supply Assembly electricity
Connection, the second controller, for receiving the level sensor signal and controlling the water supplying unit to supply water, the electric capacity
Electrically connected after device and first controller are in parallel with the second controller；
When first controller is detected voltage reaches low-voltage variation value in the capacitor and the batteries when, it is described
Power Supply Assembly switches to off-network state, and the capacitor and the batteries are charged, now, the Power Supply Assembly
Also powered for the impoundment element；Reached when first controller detects voltage in the capacitor and the batteries
During high voltage protective value, the Power Supply Assembly is switched to and net state, the Power Supply Assembly and the energy storage component and described second
Controller is disconnected, and carries out parallel network power generation.
Preferably, the Power Supply Assembly is included for the 3rd controller for switching grid-connected/off-network state and the 3rd control
The MPPT maximum power point tracking device of device processed electrical connection, electrically connected with the MPPT maximum power point tracking device for converting solar energy into
The photovoltaic array of electric energy, the MPPT maximum power point tracking device, for monitoring the generating voltage of the photovoltaic array and catching described
The ceiling voltage current value of photovoltaic array.
Preferably, the Power Supply Assembly also includes the inverter electrically connected with the 3rd controller.
Preferably, the water supplying unit is used in the water source including what is be connected respectively with water source and the cistern
Water pump that water is evacuated in the cistern, the direct current generator for being used to drive the water pump operation being connected with the water pump, it is described
Direct current generator is electrically connected with the second controller.
Preferably, the irrigation assembly include be connected with cistern described in one end irrigation conduit, located at the irrigation pipe
Irrigated crop is treated in control valve on road, the other end connection of the irrigation conduit.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art：One kind of the present invention
Photovoltaic water-raising irrigation system, by the way that capacitor and the first controller and batteries are linked together, collectively constitutes mixing
Energy storage component, Stability Analysis of Structures, charging rate is fast, and service life is long；Powered simultaneously using the energy storage component of the mixing and realize filling
Irrigate, reduce water pump and connect impact of the moment to battery, prolonging service life of battery, can guarantee that and carry out intelligence according to crop water requirement
It can irrigate, save considerably water resource, improve running efficiency of system and stability.
Brief description of the drawings
Accompanying drawing 1 is connection diagram of the invention.
Wherein：1st, capacitor；2nd, the first controller；3rd, batteries；4th, cistern；5th, level sensor；6th, the second control
Device processed；7th, the 3rd controller；8th, MPPT maximum power point tracking device；9th, photovoltaic array；10th, inverter；11st, electric network source；12nd, water
Source；13rd, water pump；14th, direct current generator；15th, irrigation conduit；16th, control valve.
Embodiment
The technical solution of the present invention will be further described below with reference to the accompanying drawings.
It is shown in Figure 1, a kind of photovoltaic water-raising irrigation system, including Power Supply Assembly, energy storage component, impoundment element and irrigation
Component；
Energy storage component includes the controller 2 of capacitor 1 and first in parallel, the batteries 3 electrically connected with the first controller 2, the
One controller 2, discharge and recharge, electricity are carried out for voltage in monitoring capacitor 1 and batteries 3 and to capacitor 1 and batteries 3
Electrically connected after the electrical connection in parallel of 1 and first controller of container 2 with Power Supply Assembly.
In the present embodiment, capacitor 1 is ultracapacitor, is in series by multiple farad capacitors.Ultracapacitor is again
Double layer capacitor is, is a kind of novel energy storage apparatus, it has short charging interval, service life length, good temp characteristic, saving
The features such as energy and environmental protection.First controller 2 is solar charging discharging controller, is used in solar power system,
Battery is charged control multichannel solar cell array and battery is automatically controlled to solar inverter load supplying
Equipment.By will be electrically connected after ultracapacitor and solar charging discharging controller parallel connection electrical connection with batteries, constitute
Mixed energy storage system.The mixed energy storage system of composition has that storage battery energy density is big concurrently and ultracapacitor power density greatly excellent
Point, reduces the impact to battery, optimizes the charge and discharge process of battery, reduces charge and discharge cycles number of times, adds
Discharge time, increasing storage battery service life improves the stability of power supply and reduces photovoltaic generating system operating cost.
When the first controller 2 is detected voltage reaches low-voltage variation value in capacitor 1 and batteries 3 when, Power Supply Assembly
Off-network state is switched to, and capacitor 1 and batteries 3 are charged, now, Power Supply Assembly is also powered for impoundment element；
When the first controller 2 is detected voltage reaches high voltage protective value in capacitor 1 and batteries 3 when, Power Supply Assembly is switched to simultaneously
Net state, Power Supply Assembly is disconnected with energy storage component and second controller 6, and carries out parallel network power generation.
Impoundment element includes cistern 4, being used in cistern 4 and monitors the level sensor of water level in cistern 4
5th, the second controller 6 electrically connected with level sensor 5, the water supply for being used to supply water for cistern 4 being connected with second controller 6
Unit, water supplying unit is connected with cistern 4, and second controller 6 is electrically connected with Power Supply Assembly, second controller 6, for receiving water
The signal of level sensor 5 simultaneously controls water supplying unit to supply water, and is electrically connected after the parallel connection of 1 and first controller of capacitor 2 with second controller 6
Connect.
In the present embodiment, second controller 6 is power-supply controller of electric, for receiving the signal of level sensor 5 and controlling to supply
Water unit supplies water.Herein, water supplying unit with water source 12 and cistern 4 including being connected for the water in water source 12 to be taken out respectively
Water pump 13 into cistern 4, the direct current generator 14 for being used to drive water pump 13 to run being connected with water pump 13, direct current generator 14 with
Second controller 6 is electrically connected.When level sensor, which detects water level in cistern 4, is less than setting water level, pass through power supply
Device drives direct current generator and water pump operation to carry out cistern retaining, until retaining pool water level reaches setting water level, power-supply controller of electric
Stop pump working.
The 3rd controller 7 that Power Supply Assembly includes being used for switching grid-connected/off-network state, electrically connected with the 3rd controller 7
MPPT maximum power point tracking device 8, electrically connected with MPPT maximum power point tracking device 8 for the photovoltaic array that converts solar energy into electrical energy
9, MPPT maximum power point tracking device 8, for monitoring the generating voltage of photovoltaic array 9 and catching the ceiling voltage electric current of photovoltaic array 9
Value.Also include the inverter 10 electrically connected with the 3rd controller 7, inverter 10 is electrically connected with electric network source 11.
In the present embodiment, the 3rd controller 7 is grid-connected/off-network controller, for switching grid-connected/off-network state, when the
When one controller 2 detects the voltage of batteries 3 and reaches high voltage protective, grid-connected/off-network controller selection is incorporated into the power networks carry out light
Photovoltaic grid-connected, generated energy can be used in warmhouse booth from electricity consumption；Reached when the first controller 2 detects the voltage of batteries 3
When setting low-voltage variation, grid-connected/off-network controller selection off-grid operation charges to mixed energy storage system.
Herein, the rated voltage 48V of the first controller 2, float charge voltage 54.8V, connection low pressure 50V, disconnection low pressure 43V.
When the first controller 2, which detects battery tension, reaches high voltage protective 54.8V, grid-connected/off-network controller selection is incorporated into the power networks
Parallel network power generation is carried out, generated energy can be used in warmhouse booth from electricity consumption；Reached when the first controller 2 detects battery tension
During to setting low-voltage variation 50V, grid-connected/off-network controller selection off-grid operation is filled to ultracapacitor and batteries 3
Electricity, remains that energy storage component maintains certain electricity, and retaining pool water level can be maintained to 5m electricity；Level sensor detects storage
When water level is less than setting water level 5m in pond, direct current generator 14 and the operation of water pump 13 is driven to carry out retaining by second controller 6
The retaining of pond 4, until the water level of cistern 4 reaches setting water level 5m, second controller 6 stops pump working；When illumination is relatively strong and needs
When wanting retaining and energy storage, the part that photovoltaic array 9 generates electricity charges to energy storage component, and another part directly feeds water pump 13 and direct current
Motor 14.
Irrigation assembly includes irrigation conduit 15, the control valve 16 on irrigation conduit 15 that one end is connected with cistern 4,
Irrigated crop is treated in the other end connection of irrigation conduit 15.Control valve 16 is magnetic valve.Meanwhile, a soil can be set at crop irrigation
Earth humidity sensor, controls electromagnetic valve switch by soil humidity sensor output signal, realizes irrigation automation control.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and be carried out, and it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all cover within the scope of the present invention.
Claims (5)
1. a kind of photovoltaic water-raising irrigation system, it is characterised in that：Including Power Supply Assembly, energy storage component, impoundment element and irrigation group
Part；
The energy storage component includes capacitor in parallel（1）With the first controller（2）And first controller（2）Electrical connection
Batteries（3）, first controller（2）, for monitoring the capacitor（1）With the batteries（3）Interior voltage
And to the capacitor（1）With the batteries（3）Carry out discharge and recharge, the capacitor（1）With first controller（2）
Electrically connected after parallel connection with the Power Supply Assembly；
The impoundment element includes cistern（4）, located at the cistern（4）It is interior to be used to monitor the cistern（4）Interior water
The level sensor of position（5）And the level sensor（5）The second controller of electrical connection（6）And the second controller
（6）Being used for for connection is the cistern（4）The water supplying unit of water supply, the water supplying unit and the cistern（4）Connection, institute
State second controller（6）Electrically connected with the Power Supply Assembly, the second controller（6）, for receiving the level sensor
（5）Signal simultaneously controls the water supplying unit to supply water, the capacitor（1）With first controller（2）With described after parallel connection
Two controllers（6）Electrical connection；
When first controller（2）Detect the capacitor（1）With the batteries（3）Interior voltage reaches low-voltage variation
During value, the Power Supply Assembly switches to off-network state, and to the capacitor（1）With the batteries（3）Charged, this
When, the Power Supply Assembly is also powered for the impoundment element；When first controller（2）Detect the capacitor（1）With
The batteries（3）When interior voltage reaches high voltage protective value, the Power Supply Assembly is switched to and net state, the Power Supply Assembly
With the energy storage component and the second controller（6）Disconnect, and carry out parallel network power generation.
2. a kind of photovoltaic water-raising irrigation system according to claim 1, it is characterised in that：The Power Supply Assembly includes being used for
Switch the 3rd controller of grid-connected/off-network state（7）And the 3rd controller（7）The MPPT maximum power point tracking device of electrical connection
（8）And the MPPT maximum power point tracking device（8）Electrical connection for the photovoltaic array that converts solar energy into electrical energy（9）, it is described
MPPT maximum power point tracking device（8）, for monitoring the photovoltaic array（9）Generating voltage and catch the photovoltaic array（9）'s
Ceiling voltage current value.
3. a kind of photovoltaic water-raising irrigation system according to claim 1, it is characterised in that：The Power Supply Assembly also include with
3rd controller（7）The inverter of electrical connection（10）, the inverter（10）With electric network source（11）Electrical connection.
4. a kind of photovoltaic water-raising irrigation system according to claim 1, it is characterised in that：The water supplying unit includes difference
With water source（12）With the cistern（4）What is connected is used for the water source（12）In water be evacuated to the cistern（4）In
Water pump（13）And the water pump（13）Connection be used for drive the water pump（13）The direct current generator of operation（14）, the direct current
Motor（14）With the second controller（6）Electrical connection.
5. a kind of photovoltaic water-raising irrigation system according to claim 1, it is characterised in that：The irrigation assembly includes one end
With the cistern（4）The irrigation conduit of connection（15）, located at the irrigation conduit（15）On control valve（16）, it is described to irrigate
Pipeline（15）The other end connection treat irrigated crop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710605921.4A CN107242107A (en) | 2017-07-24 | 2017-07-24 | A kind of photovoltaic water-raising irrigation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710605921.4A CN107242107A (en) | 2017-07-24 | 2017-07-24 | A kind of photovoltaic water-raising irrigation system |
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| CN107242107A true CN107242107A (en) | 2017-10-13 |
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| CN201710605921.4A Pending CN107242107A (en) | 2017-07-24 | 2017-07-24 | A kind of photovoltaic water-raising irrigation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020259362A1 (en) * | 2019-06-27 | 2020-12-30 | 长安大学 | Real-time monitoring apparatus and method for groundwater level and soil moisture in gully head landfill region |
| CN113115698A (en) * | 2019-12-31 | 2021-07-16 | 江苏和网源电气有限公司 | Modular photovoltaic water lifting system |
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