CN104265593B - Wind-solar complementary water lifting device free of storage battery - Google Patents
Wind-solar complementary water lifting device free of storage battery Download PDFInfo
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- CN104265593B CN104265593B CN201410516428.1A CN201410516428A CN104265593B CN 104265593 B CN104265593 B CN 104265593B CN 201410516428 A CN201410516428 A CN 201410516428A CN 104265593 B CN104265593 B CN 104265593B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention relates to a wind-solar complementary water lifting device free of a storage battery. The wind-solar complementary water lifting device comprises a solar photovoltaic battery array, a wind generator set, a wind-solar complementary controller and a direct-flow water lift pump. An input end of the wind-solar complementary controller is connected with an output end of the solar photovoltaic battery array, and another input end of the wind-solar complementary controller is connected with an output end of the wind generator set; an output end of the wind-solar complementary controller is connected with an input end of the direct-flow water lift pump, and the direct-flow water lift pump is arranged in a lower-level water reservoir of a water reservoir unit. The water reservoir unit comprises an upper-level water reservoir, and the direct-flow water lift pump is used for lifting water of the lower-level water reservoir and storing the water in the upper-level water reservoir. The wind-solar complementary water lifting device abandons a storage battery in conventional wind-solar complementary generation, solar energy and wind energy are directly used for lifting water after complementary to each other, energy storage is changed into water storage, the problem that conventional photovoltaic water lifting and wind water lifting are low in efficiency is solved, and the defect that an energy storage battery is high in composition cost, short in service life and difficult in maintenance and pollutes the environment and the like is overcome.
Description
Technical field
The present invention relates to the wind light mutual complementing Water raiser of the technical field, particularly a kind of battery-free that new energy development utilizes.
Background technique
Wind energy and solar energy are green renewable energy sourcess, are described as " future source of energy " of human survival, are extensively carried out large-scale development and commercial applications, as wind-power electricity generation, solar electrical energy generation, photovoltaic pump up water, Wind-driven water pumping etc.But the energy density of solar energy and wind energy is low, there is the feature of unstability and discontinuity, the working efficiency of photovoltaic technology and wind generating technology is extensively denounced.And wind energy and solar energy have good complementarity, some area wind resource summer half year is poor, and winter half year, solar radiation amount reduced; Some areas sunshine on daytime is strong and wind-force is weak, evening is unglazed photograph but wind-force is strong.Therefore, wind light mutual complementing technology solar energy and wind energy combination utilized is the frontier that renewable energy sources is developed.
Traditional wind light mutual complementing technology of pumping up water is all utilize wind-power electricity generation and photovoltaic generation to carry out charging accumulation of energy to battery pack, and then is the technology of pumping up water that Ac drives suction pump by the DC inverter of battery pack.As " wind light mutual complementing pump up water-domestic power supply system " is made up of photovoltaic arrays, wind-driven generator, frequency variator, motor-water pump and battery pack.The output via controller of photovoltaic array and wind-power electricity generation and inverter are converted to Ac, by day for motor-water pump load provides power supply; And sunlight charge less foot early morning or at dusk time be battery charging; Be full of at the night and wet pit that do not have sunlight, the battery pack with sufficient electrical energy will provide power supply for household electric appliance load.As utility model patent " wind-solar-diesel complementary water-raising system " (201320115493.4) by solar generator group, wind power generating set and diesel generating set by inverter with exchange water pump be connected and pump up water, solar electrical energy generation unit, wind power generating set and diesel generating set are equipped with storage battery.And traditional wind-light complementary system energy storage device-battery pack pumped storage system replaces by patent of invention " a kind of mixing wind light mutual complementing pumped storage and controlling method thereof " (201110300964.4), and use Reversible Pump-Turbine to draw water or generate electricity at pumped-storage units, pass through reservoir impoundment power generation, and this patent right core requirement be " according to wind-power electricity generation acc power total capacity, photovoltaic array power total capacity and upper pool contain water can power total capacity carry out the configuration of certainty annuity capacity ", but not wind light mutual complementing control technique.
As can be seen here, the storage device many employings battery pack in traditional wind-light complementary system.The shortcomings such as the cost of battery pack is high, the life-span is short, Maintenance Difficulty, befouling environment, have seriously blocked the exploitation of wind energy and solar energy, the especially application of wind and solar energy in agricultural production.
Summary of the invention
The object of the present invention is to provide a kind of wind light mutual complementing Water raiser of battery-free; both cost-saving, protection of the environment; also overcome because solar energy and low the causing of wind energy density utilize separately solar energy or wind energy to carry out pumping up water the defect of inefficiency, and this device has, and operational efficiency is high, compact structure, cost are low, the feature of energy-conserving and environment-protective.
For achieving the above object, technological scheme of the present invention is: a kind of wind light mutual complementing Water raiser of battery-free, is characterized in that, comprising: solar-energy photo-voltaic cell array, wind power generating set, wind/light complementation controller and direct current suction pump; The output terminal of described solar-energy photo-voltaic cell array is connected with an input end of described wind/light complementation controller; The output terminal of described wind power generating set is connected with another input end of described wind/light complementation controller; Described wind/light complementation controller output terminal is connected with the input end of described direct current suction pump: described direct current suction pump is arranged in subordinate's wet pit of a wet pit unit, and this wet pit unit also comprises higher level's wet pit, described direct current suction pump is for raising the water that puts grade wet pit and putting aside water in higher level's wet pit.
In an embodiment of the present invention, described wind/light complementation controller comprises and connecting successively: input circuit, comparison loop, center-control loop and output loop.
In an embodiment of the present invention, described input circuit comprises: solar-energy photo-voltaic cell array input circuit and wind power generating set input circuit; The input end of described solar-energy photo-voltaic cell array input circuit as an input end of described wind/light complementation controller, for carrying out DC/DC conversion to the output of described solar-energy photo-voltaic cell array; The input end of described wind power generating set input circuit is as another input end of described wind/light complementation controller; For carrying out rectifying and wave-filtering to the output of described wind power generating set;
Described input circuit comprises: the 3rd diode (D3), the first electric capacity (C1), the first diode (D1), the second electric capacity (C2) and the second diode (D2); Described comparison loop comprises: IGBT pipe (VT1), the 2nd IGBT pipe (VT2), inductance (L) and electric capacity (C); The anode of described 3rd diode (D3), as the first input end of described solar-energy photo-voltaic cell array input circuit, is connected with an output terminal of described solar-energy photo-voltaic cell array; The negative electrode of described 3rd diode (D3) is connected with one end of described first electric capacity (C1), and accesses the collector electrode of described IGBT pipe (VT1); The emitter of described IGBT pipe (VT1) is connected with the negative electrode of described first diode (D1), and accesses one end of described inductance (L); The anode of described first diode (D1) is connected with the other end of described first electric capacity (C1), and as the second input end of described solar-energy photo-voltaic cell array input circuit, is connected with another output terminal of described solar-energy photo-voltaic cell array; The collector electrode of described 2nd IGBT pipe (VT2) is connected with one end of described second electric capacity (C2), and as the first input end of described wind power generating set input circuit, is connected with an output terminal of described wind power generating set; The emitter of described 2nd IGBT pipe (VT2) is connected with the negative electrode of described second diode (D2), and accesses the anode of described first diode (D1); The other end of described second electric capacity (C2) is connected with the other end of described inductance (L), and accesses one end of described electric capacity (C); And the other end of described second electric capacity (C2) is as the second input end of described wind power generating set input circuit, is connected with another output terminal of described wind power generating set; The anode of described second diode (D2) is connected with the other end of described electric capacity (C).
In an embodiment of the present invention, described center-control loop adopts STM32 module as information control center, and STM32 module controls the break-make that described IGBT pipe (VT1) and the 2nd IGBT manages (VT2); Described output loop comprises an IPM module, this IPM inside modules contain three-phase IGBT bridge and in three-phase IGBT bridge each IGBT pipe inverse parallel fast recovery diode.
In one embodiment of the invention, for described comparison loop, the output current of described solar-energy photo-voltaic cell array input circuit and default first current threshold are compared, if be more than or equal to this first current threshold, a described IGBT manages (VT1) conducting, the output voltage of described solar-energy photo-voltaic cell array input circuit is all added on described inductance (L), and the electric current linear increase of described inductance (L) also through described electric capacity (C) filtering, exports power supply voltage; If lower than this first current threshold, described IGBT pipe (VT1) cut-off, the output voltage of described solar-energy photo-voltaic cell array input circuit cannot be added to described inductance (L) and above can not export power supply voltage; The output current of described wind power generating set input circuit and default second current threshold are compared, if be more than or equal to this second current threshold, described 2nd IGBT manages (VT2) conducting, the output voltage of described wind power generating set input circuit is all added on described inductance (L), the electric current linear increase of described inductance (L) also through described electric capacity (C) filtering, exports power supply voltage; If lower than this second current threshold, described 2nd IGBT pipe (VT2) cut-off, the output voltage of described wind power generating set input circuit cannot be added to described inductance (L) and above can not export power supply voltage; When described solar-energy photo-voltaic cell array input circuit is greater than corresponding predetermined threshold value respectively with the output current of wind power generating set input circuit, both grid-connected outputs.
Compared to prior art, the present invention has following beneficial effect:
The wind light mutual complementing Water raiser of a kind of battery-free proposed by the invention, abandon the batteries to store energy device in traditional wind light mutual complementing power generation, pump up water being directly used in after solar energy and wind energy complementary, change energy storage is water storage, both solved conventional photovoltaic to pump up water the inefficient problem with Wind-driven water pumping, also solve energy storage battery in traditional wind light mutual complementing technology and form this height, life-span is short, Maintenance Difficulty, the drawbacks such as befouling environment, both cost-saving, protection of the environment, also overcome because solar energy and low the causing of wind energy density utilize separately solar energy or wind energy to carry out pumping up water the defect of inefficiency, and this device to have operational efficiency high, compact structure, cost is low, the feature of energy-conserving and environment-protective.Meanwhile, independent output and both grid-connected output of wind-power electricity generation or photovoltaic generation is also achieved.In addition, the wind light mutual complementing Water raiser of a kind of battery-free proposed by the invention can be widely used in the occasions such as agriculture and forestry are irrigated, evaporate brine in seashore, aquaculture.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the wind light mutual complementing Water raiser of a kind of battery-free in the present invention.
Fig. 2 is the circuit theory diagrams of input circuit and comparison loop in wind/light complementation controller in the present invention.
Fig. 3 is the circuit theory diagrams of wind/light complementation controller center-control loop and output loop in the present invention.
Embodiment
Below in conjunction with accompanying drawing, technological scheme of the present invention is specifically described.
The invention provides a kind of wind light mutual complementing Water raiser of battery-free, it is characterized in that, as shown in Figure 1, comprising: solar-energy photo-voltaic cell array, wind power generating set, wind/light complementation controller and direct current suction pump; The output terminal of described solar-energy photo-voltaic cell array is connected with an input end of described wind/light complementation controller; The output terminal of described wind power generating set is connected with another input end of described wind/light complementation controller; Described wind/light complementation controller output terminal is connected with the input end of described direct current suction pump: described direct current suction pump is arranged in subordinate's wet pit of a wet pit unit, and this wet pit unit also comprises higher level's wet pit, described direct current suction pump is for raising the water that puts grade wet pit and putting aside water in higher level's wet pit.
In the present embodiment, as shown in Figure 1, described wind/light complementation controller comprises and connecting successively: input circuit, comparison loop, center-control loop and output loop.
Further, as shown in Fig. 1 ~ Fig. 3, described input circuit comprises: solar-energy photo-voltaic cell array input circuit and wind power generating set input circuit; The input end of described solar-energy photo-voltaic cell array input circuit as an input end of described wind/light complementation controller, for carrying out DC/DC conversion to the output of described solar-energy photo-voltaic cell array; The input end of described wind power generating set input circuit is as another input end of described wind/light complementation controller; For carrying out rectifying and wave-filtering to the output of described wind power generating set;
Described input circuit comprises: the 3rd diode D3, the first electric capacity C1, the first diode D1, the second electric capacity C2 and the second diode D2; Described comparison loop comprises: an IGBT pipe VT1, the 2nd IGBT pipe VT2, inductance L and electric capacity C; The anode of described 3rd diode D3, as the first input end of described solar-energy photo-voltaic cell array input circuit, is connected with an output terminal of described solar-energy photo-voltaic cell array; The negative electrode of described 3rd diode D3 is connected with one end of described first electric capacity C1, and accesses the collector electrode of a described IGBT pipe VT1; The emitter of a described IGBT pipe VT1 is connected with the negative electrode of described first diode D1, and accesses one end of described inductance L; The anode of described first diode D1 is connected with the other end of described first electric capacity C1, and as the second input end of described solar-energy photo-voltaic cell array input circuit, is connected with another output terminal of described solar-energy photo-voltaic cell array; The collector electrode of described 2nd IGBT pipe VT2 is connected with one end of described second electric capacity C2, and as the first input end of described wind power generating set input circuit, is connected with an output terminal of described wind power generating set; The emitter of described 2nd IGBT pipe VT2 is connected with the negative electrode of described second diode D2, and accesses the anode of described first diode D1; The other end of described second electric capacity C2 is connected with the other end of described inductance L, and accesses one end of described electric capacity C; And the other end of described second electric capacity C2 is as the second input end of described wind power generating set input circuit, is connected with another output terminal of described wind power generating set; The anode of described second diode D2 is connected with the other end of described electric capacity C.
Further, described center-control loop adopts STM32 module as information control center, and STM32 module controls the break-make of a described IGBT pipe VT1 and the 2nd IGBT pipe VT2; Described output loop comprises an IPM module, this IPM inside modules contain three-phase IGBT bridge and in three-phase IGBT bridge each IGBT pipe inverse parallel fast recovery diode.
Further, for described comparison loop, the output current of described solar-energy photo-voltaic cell array input circuit and default first current threshold are compared, if be more than or equal to this first current threshold, a described IGBT pipe VT1 conducting, the output voltage of described solar-energy photo-voltaic cell array input circuit is all added in described inductance L, and the electric current linear increase of described inductance L also through described electric capacity C filtering, exports power supply voltage; If lower than this first current threshold, a described IGBT pipe VT1 ends, and the output voltage of described solar-energy photo-voltaic cell array input circuit cannot be added in described inductance L and can not export power supply voltage; The output current of described wind power generating set input circuit and default second current threshold are compared, if be more than or equal to this second current threshold, described 2nd IGBT pipe VT2 conducting, the output voltage of described wind power generating set input circuit is all added in described inductance L, the electric current linear increase of described inductance L also through described electric capacity C filtering, exports power supply voltage; If lower than this second current threshold, described 2nd IGBT pipe VT2 ends, and the output voltage of described wind power generating set input circuit cannot be added in described inductance L and can not export power supply voltage; When described solar-energy photo-voltaic cell array input circuit is greater than corresponding predetermined threshold value respectively with the output current of wind power generating set input circuit, both grid-connected outputs.
In order to the wind light mutual complementing Water raiser allowing those skilled in the art more understand a kind of battery-free that invention proposes, below in conjunction with method for driving of the present invention, this device is described.
Wind energy power unit answers turned generation electric energy to be input to the middle wind power generating set input circuit of wind/light complementation controller, and solar-energy photo-voltaic cell array absorbs solar energy generation electric energy and is input to solar-energy photo-voltaic cell array input circuit in wind/light complementation controller; The output signal of wind power generating set input circuit and solar-energy photo-voltaic cell array input circuit is through comparison loop, under the control treatment in center-control loop, output a control signal to direct current suction pump through output loop, control direct current suction pump and the bigcatkin willow of subordinate's wet pit is mentioned upper level wet pit.
In the present embodiment, as shown in Figure 3, center-control loop adopts master controller to adopt STM32 module as information control center.Output loop selects the IPM(Intelligent Power Module of the 35A of Mitsubishi) module; this inside modules contain three-phase IGBT bridge and in three-phase IGBT bridge each IGBT pipe inverse parallel fast recovery diode; in addition; this IPM module itself has overcurrent protection, the high temperature protection that can be configured excess current size by the size of non-essential resistance, and has the hardware protection design preventing same upper and lower brachium pontis conducting simultaneously of going up mutually.By controlling its inner 6 IGBT pipe break-makes, realizing controlling pole motor (6 coil) 3, namely managing conduction mode between two by the IGBT in control IPM and driving the direct current generator in direct current suction pump.
In the present embodiment, as shown in Figure 2, an IGBT pipe VT1 and the 2nd IGBT pipe VT2 controls break-make by STM32 module.In the 2nd IGBT pipe VT2 conduction period, the output voltage of wind power generating set is all added to out on voltage inductance, namely in inductance L, inductance L electric current linear increase through electric capacity C filtering, to load by powering; At the 2nd IGBT pipe VT2 blocking interval, electric discharge induced voltage powers to the load.Under wind power generating set independent role, be equivalent to a circuit-mode, i.e. Uo1=D2Uwind/ (1-D1), wherein D1 and D2 refers to the voltage stabilizing definite value of diode respectively, and Uwind refers to the output value of wind power generating set after arranging; When solar-energy photo-voltaic cell array is independently operated on stable state, both end voltage is zero, Uo2=D1Upv/(1-D2^2 to the integration of time in one), wherein Upv refers to the output value of photovoltaic battery panel after DC/DC conversion; When wind power generating set export and solar-energy photo-voltaic cell array generator export superpose time, Uo=Uo1+Uo2.
Be more than preferred embodiment of the present invention, all changes done according to technical solution of the present invention, when the function produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (3)
1. a wind light mutual complementing Water raiser for battery-free, is characterized in that, comprising: solar-energy photo-voltaic cell array, wind power generating set, wind/light complementation controller and direct current suction pump; The output terminal of described solar-energy photo-voltaic cell array is connected with an input end of described wind/light complementation controller; The output terminal of described wind power generating set is connected with another input end of described wind/light complementation controller; Described wind/light complementation controller output terminal is connected with the input end of described direct current suction pump: described direct current suction pump is arranged in subordinate's wet pit of a wet pit unit, and this wet pit unit also comprises higher level's wet pit, described direct current suction pump is for raising the water that puts grade wet pit and being put aside by water in higher level's wet pit;
Described wind/light complementation controller comprises and connecting successively: input circuit, comparison loop, center-control loop and output loop;
Described input circuit comprises: solar-energy photo-voltaic cell array input circuit and wind power generating set input circuit; The input end of described solar-energy photo-voltaic cell array input circuit as an input end of described wind/light complementation controller, for carrying out DC/DC conversion to the output of described solar-energy photo-voltaic cell array; The input end of described wind power generating set input circuit is as another input end of described wind/light complementation controller; For carrying out rectifying and wave-filtering to the output of described wind power generating set;
Described input circuit comprises: the 3rd diode (D3), the first electric capacity (C1), the first diode (D1), the second electric capacity (C2) and the second diode (D2); Described comparison loop comprises: IGBT pipe (VT1), the 2nd IGBT pipe (VT2), inductance (L) and electric capacity (C); The anode of described 3rd diode (D3), as the first input end of described solar-energy photo-voltaic cell array input circuit, is connected with an output terminal of described solar-energy photo-voltaic cell array; The negative electrode of described 3rd diode (D3) is connected with one end of described first electric capacity (C1), and accesses the collector electrode of described IGBT pipe (VT1); The emitter of described IGBT pipe (VT1) is connected with the negative electrode of described first diode (D1), and accesses one end of described inductance (L); The anode of described first diode (D1) is connected with the other end of described first electric capacity (C1), and as the second input end of described solar-energy photo-voltaic cell array input circuit, is connected with another output terminal of described solar-energy photo-voltaic cell array; The collector electrode of described 2nd IGBT pipe (VT2) is connected with one end of described second electric capacity (C2), and as the first input end of described wind power generating set input circuit, is connected with an output terminal of described wind power generating set; The emitter of described 2nd IGBT pipe (VT2) is connected with the negative electrode of described second diode (D2), and accesses the anode of described first diode (D1); The other end of described second electric capacity (C2) is connected with the other end of described inductance (L), and accesses one end of described electric capacity (C); And the other end of described second electric capacity (C2) is as the second input end of described wind power generating set input circuit, is connected with another output terminal of described wind power generating set; The anode of described second diode (D2) is connected with the other end of described electric capacity (C).
2. the wind light mutual complementing Water raiser of a kind of battery-free according to claim 1, it is characterized in that: described center-control loop adopts STM32 module as information control center, and STM32 module controls the break-make that described IGBT pipe (VT1) and the 2nd IGBT manages (VT2); Described output loop comprises an IPM module, this IPM inside modules contain three-phase IGBT bridge and in three-phase IGBT bridge each IGBT pipe inverse parallel fast recovery diode.
3. the wind light mutual complementing Water raiser of a kind of battery-free according to claim 1 and 2, it is characterized in that: for described comparison loop, the output current of described solar-energy photo-voltaic cell array input circuit and default first current threshold are compared, if be more than or equal to this first current threshold, a described IGBT manages (VT1) conducting, the output voltage of described solar-energy photo-voltaic cell array input circuit is all added on described inductance (L), the electric current linear increase of described inductance (L) also through described electric capacity (C) filtering, exports power supply voltage; If lower than this first current threshold, described IGBT pipe (VT1) cut-off, the output voltage of described solar-energy photo-voltaic cell array input circuit cannot be added to described inductance (L) and above can not export power supply voltage; The output current of described wind power generating set input circuit and default second current threshold are compared, if be more than or equal to this second current threshold, described 2nd IGBT manages (VT2) conducting, the output voltage of described wind power generating set input circuit is all added on described inductance (L), the electric current linear increase of described inductance (L) also through described electric capacity (C) filtering, exports power supply voltage; If lower than this second current threshold, described 2nd IGBT pipe (VT2) cut-off, the output voltage of described wind power generating set input circuit cannot be added to described inductance (L) and above can not export power supply voltage; When described solar-energy photo-voltaic cell array input circuit is greater than corresponding predetermined threshold value respectively with the output current of wind power generating set input circuit, both grid-connected outputs.
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| CN111365218B (en) * | 2020-03-13 | 2020-12-22 | 宁夏大学 | Solar and wind energy non-storage water-lifting controller |
| CN113472011B (en) * | 2021-07-05 | 2022-10-18 | 广西大学 | Wind-light storage micro-grid operation method and system meeting fruit tree irrigation requirements |
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| CN103174621B (en) * | 2013-03-14 | 2015-09-09 | 福建农林大学 | A kind of wind-solar complementary type air compression plant for pumping up water |
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Application publication date: 20150107 Assignee: FUZHOU SIFEI INFORMATION TECHNOLOGY CO., LTD. Assignor: Fujian Agricultural and Forestry University Contract record no.: 2018350000001 Denomination of invention: Wind-solar complementary water lifting device free of storage battery Granted publication date: 20150708 License type: Common License Record date: 20180125 |
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