CN202513667U - Photovoltaic pumping control cabinet and photovoltaic power generation pumping system - Google Patents

Photovoltaic pumping control cabinet and photovoltaic power generation pumping system Download PDF

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Publication number
CN202513667U
CN202513667U CN2012201257847U CN201220125784U CN202513667U CN 202513667 U CN202513667 U CN 202513667U CN 2012201257847 U CN2012201257847 U CN 2012201257847U CN 201220125784 U CN201220125784 U CN 201220125784U CN 202513667 U CN202513667 U CN 202513667U
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China
Prior art keywords
photovoltaic
water
switch
power supply
module
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Expired - Lifetime
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CN2012201257847U
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Chinese (zh)
Inventor
何少强
施洪峰
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深圳市天源新能源有限公司
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

Abstract

The utility model discloses a photovoltaic pumping control cabinet and a photovoltaic power generation pumping system. The photovoltaic pumping control cabinet comprises a pumping inverter, a photovoltaic power supply module, a commercial power supply module, and a switch module, wherein the pumping inverter is used for driving a water pump; the photovoltaic power supply module is used for parallelly connecting and converging a plurality of photovoltaic arrays; the commercial power supply module is used for converting three-phase alternating-current commercial power into direct current; and the switch module is connected with the photovoltaic power supply module, the commercial power supply module and the pumping inverter, and is used for selecting the photovoltaic power supply module or the commercial power supply module for supplying power to the pumping inverter according to the input of a user. By implementing the technical scheme provided by the utility model, the operation of the photovoltaic power generation pumping system cannot be influenced even if on overcast and rainy days, so that the water supply reliability of the photovoltaic power generation pumping system is greatly improved, and the requirements on the water supply of different customers at different places are met.

Description

A kind of photovoltaic water-raising control cubicle and photovoltaic generation water-raising system
Technical field
The utility model relates to photovoltaic generation, relates in particular to a kind of photovoltaic water-raising control cubicle and photovoltaic generation water-raising system.
Background technology
The photovoltaic generation water-raising system mainly is made up of photovoltaic array, pump up water inverter and three-phase alternating current water pump, extensively applies to fields such as agricultural irrigation, forestry pouring, grassland herding, control of desert, desalinization, urban waterscape.In the photovoltaic generation water-raising system based on electric power storage not as the theory of retaining; Employing is built cistern and is save storage battery; Substitute the method for electric power storage with retaining; Minimizing system cost of investment has improved the reliability of photovoltaic generation water-raising system equipment again, has also avoided storage battery to change the pollution to environment simultaneously, accomplishes real economy, environmental protection.
But, in the agricultural water conservancy irrigation of reality, control of desert, urban waterscape etc. are used,, or needing the occasion that supplies water night if run into the cloudy day day after day, existing scheme can not solve; When the urban look fountain was used, if when running into cloudy day or rainy day, present scheme can not reach joyful civic effect.
The utility model content
The technical problem that the utility model will solve is, under overcast and rainy situation, can not realize the defective that supplies water to prior art above-mentioned, provides a kind of at the overcast and rainy photovoltaic water-raising control cubicle that supplies water also can realized.
The utility model solves the technical scheme that its technical problem adopted: construct a kind of photovoltaic water-raising control cubicle, be connected between water pump and the multichannel photovoltaic array, said photovoltaic water-raising control cubicle comprises:
Be used to drive the inverter that pumps up water of water pump;
Be used for the multichannel photovoltaic array is carried out the photovoltaic power supply module that parallel connection is confluxed;
Be used for converting the three-phase alternating current civil power to galvanic mains-supplied module; And
Be connected in photovoltaic power supply module, mains-supplied module and the inverter that pumps up water, and to be used for selecting photovoltaic supply module or mains-supplied module according to user's input be the diverter switch module of inverter power supply of pumping up water.
In the described photovoltaic water-raising control cubicle of the utility model; Said photovoltaic power supply module comprises the special-purpose fuse of a plurality of photovoltaics, a plurality of counnter attack diode and the special-purpose lightning protection device of photovoltaic; Wherein, The positive pole of multichannel photovoltaic array input is successively through connecing the positive output end of photovoltaic power supply module in the lump behind the special-purpose fuse of corresponding photovoltaic, the corresponding counnter attack diode; The negative pole of multichannel photovoltaic array input connects the negative output terminal of photovoltaic power supply module in the lump behind the special-purpose fuse of corresponding photovoltaic, the special-purpose lightning protection device of said photovoltaic is connected between the positive output end and negative output terminal of said photovoltaic power supply module.
In the described photovoltaic water-raising control cubicle of the utility model, said mains-supplied module comprises:
Be used for converting the three-phase alternating current civil power to galvanic rectification circuit that the inverter that pumps up water is suitable for; And
The pre-charge circuit of the impulse current when being used to suppress the three-phase alternating current civil power and powering on.
In the described photovoltaic water-raising control cubicle of the utility model, the said inverter that pumps up water comprises the electrochemical capacitor that is connected between the positive and negative bus of the inverter that pumps up water, and said pre-charge circuit comprises:
Be connected the resistance between rectification circuit positive output end and the positive bus-bar;
The switch parallelly connected with resistance; And
Be used to detect the voltage of electrochemical capacitor, and control switch breaks off when the voltage of electrochemical capacitor is lower than setting voltage; First control unit at the voltage of electrochemical capacitor control switch closure during more than or equal to setting voltage.
In the described photovoltaic water-raising control cubicle of the utility model, said diverter switch module comprises:
Be connected the photovoltaic power supply module and the photovoltaic special DC switch between the inverter of pumping up water;
Be connected the three-phase alternating current switch between three-phase alternating current civil power and the rectification circuit; And
Be used for controlling second control unit of the break-make of photovoltaic special DC switch and three-phase alternating current switch according to user's input.
In the described photovoltaic water-raising control cubicle of the utility model, said diverter switch module also comprises:
Be used to the interlocking module that prevents that said photovoltaic power supply module and said mains-supplied module from supplying power simultaneously.
In the described photovoltaic water-raising control cubicle of the utility model; Said interlocking module comprises: contactor reaches and the corresponding normally closed switch of said photovoltaic special DC switch; Wherein, The switch of said contactor is connected between said three-phase alternating current switch and the rectification circuit, and the coil of said contactor and said normally closed switch are connected between two outputs of said three-phase alternating current switch.
The utility model is also constructed a kind of photovoltaic generation water-raising system, comprises water pump, multichannel photovoltaic array and above-described photovoltaic water-raising control cubicle, and wherein, said photovoltaic water-raising control cubicle is connected between said water pump and the multichannel photovoltaic array.
Implement the technical scheme of the utility model; Owing to adopted two kinds of supply power modes of photovoltaic power supply and mains-supplied; And can select a kind of supply power mode wherein according to user's demand, therefore, even the overcast and rainy operation that also can not influence the photovoltaic generation water-raising system; Therefore improve the reliability of water supply of photovoltaic generation water-raising system greatly, satisfy the water demand of the different occasions of different clients.
Description of drawings
To combine accompanying drawing and embodiment that the utility model is described further below, in the accompanying drawing:
Fig. 1 is the building-block of logic of the utility model photovoltaic generation water-raising system embodiment one;
Fig. 2 is the building-block of logic of the utility model photovoltaic water-raising control cubicle embodiment one;
Fig. 3 is the circuit diagram of photovoltaic power supply module preferred embodiment in the utility model photovoltaic water-raising control cubicle;
Fig. 4 is the circuit diagram of mains-supplied module preferred embodiment in the utility model photovoltaic water-raising control cubicle;
Fig. 5 is the circuit diagram of the utility model diverter switch module preferred embodiment.
Embodiment
As shown in Figure 1; In the building-block of logic of the utility model photovoltaic generation water-raising system embodiment one; This photovoltaic generation water-raising system comprise photovoltaic water-raising control cubicle 10, multichannel photovoltaic array 20,20 ' ..., 20 " and water pump 30; wherein, photovoltaic water-raising control cubicle 10 be connected water pump 30 and multichannel photovoltaic array 20,20 ' ..., 20 " between.The logical construction of photovoltaic water-raising control cubicle 10 is with describing in detail among the embodiment below.
Fig. 2 is the building-block of logic of the utility model photovoltaic water-raising control cubicle embodiment one, this photovoltaic water-raising control cubicle pump up water inverter 101, photovoltaic power supply module 102, mains-supplied module 103 and diverter switch module 104.Wherein, the inverter 101 that pumps up water is used to drive water pump; Photovoltaic power supply module 102 is used for that the multichannel photovoltaic array is carried out parallel connection and confluxes; Mains-supplied module 103 is used for converting the three-phase alternating current civil power to direct current; Diverter switch module 104 is connected in photovoltaic power supply module 102, mains-supplied module 103 and the inverter 101 that pumps up water, and is used for selecting photovoltaic supply module 102 or mains-supplied module 103 to be inverter 101 power supplies of pumping up water according to user's input.
Fig. 3 is the circuit diagram of photovoltaic power supply module preferred embodiment in the utility model photovoltaic water-raising control cubicle, this photovoltaic power supply module comprise the special-purpose fuse F 1 of a plurality of photovoltaics, F1 ' ..., F1 ", F2, F2 ' ..., F2 ", a plurality of counnter attack diode D1, D1 ' ..., D1 " and the special-purpose lightning protection device FZ of photovoltaic.Wherein, The anodal PV+ of multichannel photovoltaic array input pass through successively the special-purpose fuse F 1 of corresponding photovoltaic, F1 ' ..., F1 ", corresponding counnter attack diode D1, D1 ' ..., D1 " after pool together; And this holds the positive output end into the photovoltaic power supply module; The negative pole PV-of multichannel photovoltaic array input through the special-purpose fuse F 2 of corresponding photovoltaic, F2 ' ..., F2 " after pool together; and this holds the negative output terminal into the photovoltaic power supply module, and the special-purpose lightning protection device FZ of photovoltaic is connected between the positive output end and negative output terminal of photovoltaic power supply module.In this embodiment, the positive pole of each road photovoltaic array input and negative pole all are furnished with the special-purpose fuse of photovoltaic, can when the photovoltaic array fault, effectively protect back grade of pump up water inverter and three-phase alternating current pump equipment.And the positive pole of each road photovoltaic array input all is furnished with the counnter attack diode, can prevent at part photovoltaic array branch trouble or receive when blocking, thereby the electric current between each branch road send the infringement that causes photovoltaic module.In addition, the direct-flow input end after confluxing is furnished with the special-purpose lightning protection device of photovoltaic, and the photovoltaic array both positive and negative polarity is all played lightning protection, improves the applicability that photovoltaic water-raising system is installed in areas such as suburb, field, desert greatly.
Fig. 4 is the circuit diagram of mains-supplied module preferred embodiment in the utility model photovoltaic water-raising control cubicle, and this mains-supplied module comprises rectification circuit U1 and pre-charge circuit.Wherein, rectification circuit U1 is used for converting the three-phase alternating current civil power to direct current that the inverter that pumps up water is suitable for; Impulse current when pre-charge circuit is used to suppress the three-phase alternating current civil power and powers on, and this pre-charge circuit specifically comprises: resistance R, K switch 1 and the first control unit (not shown).In addition, electrochemical capacitor C is connected between the positive and negative bus of the inverter that pumps up water.And resistance R is connected between rectification circuit U1 positive output end and the positive bus-bar, and K switch 1 is parallelly connected with resistance R, and first control unit is used to detect the voltage of electrochemical capacitor C, and control K switch 1 is broken off when the voltage of electrochemical capacitor C is lower than setting voltage; In the voltage of electrochemical capacitor C control K switch 1 closure during more than or equal to setting voltage.This pre-charge circuit can suppress to exchange the impulse current when powering on, and the infringement to rectification circuit U1, electrochemical capacitor C1 of shoving prevents to power on.The realization principle is: when just powering on, the voltage on the electrochemical capacitor C is less, cut-off switch K1, and civil power, shoves thereby restriction powers on to electrochemical capacitor C charging through resistance R; Voltage on electrochemical capacitor C is charged to after the setting voltage value (for example, rated operational voltage 75%), and close switch K1 bypasses charging resistor R, civil power bio-occlusion bussed supply.
Fig. 5 is the circuit diagram of the utility model diverter switch module preferred embodiment; This diverter switch module comprises: photovoltaic special DC switch QF2, three-phase alternating current switch QF1, second control unit (not shown) and the interlocking module; And interlocking module comprises: contactor KM1, with the corresponding normally closed switch QF2 ' of photovoltaic special DC switch QF2.In this embodiment; Photovoltaic special DC switch QF2 is connected the photovoltaic power supply module and pumps up water between the inverter; The switch of three-phase alternating current switch QF1 and contactor KM1 is connected between three-phase alternating current civil power and the rectification circuit, and the coil of contactor KM1 and normally closed switch QF2 ' are connected between two outputs of three-phase alternating current switch QF1.What in addition, second control unit can be according to the break-make of user's input control photovoltaic special DC switch and three-phase alternating current switch.Implement the technical scheme of this embodiment, can make things convenient for the user to select power supply and under wiring or maintenance condition, break off being connected of inverter and two kinds of power supplies, and can prevent that photovoltaic power supply module and said mains-supplied module from supplying power simultaneously.Interlocking principle is: when photovoltaic special DC switch QF2 is closed; Normally closed switch QF2 ' just can break off; The magnet exciting coil of contactor KM1 just can cut off the power supply, and the switch of contactor KM1 just can break off, thereby makes that ac power supply line just can automatic disconnection; In the time of can preventing to adopt mains-supplied, the Ground leakage current or the shorted to earth that cause through photovoltaic array.
The photovoltaic water-raising control cubicle of the utility model can adopt cabinet body structure, and the inverter that will pump up water is integrated in the control cubicle, and shutter is set on the limit, and promptly helping heat radiation again can be rainproof, improves the degree of protection of system.Can control cubicle be installed under the photovoltaic array during practical applications, save the wiring difficulty of system greatly, also practice thrift cost.In addition, the inverter that pumps up water is a control core equipment, and direct current that photovoltaic array is sent or the direct current behind the commercial power rectification convert alternating current into, drives water pump.When adopting photovoltaic power supply, the inverter that pumps up water is regulated output frequency in real time according to the variation of intensity of sunshine, realizes MPPT maximum power point tracking (MPPT); When adopting mains-supplied, the inverter that pumps up water is stablized output frequency according to the frequency that the user configures in advance, satisfies the water demand of special occasions.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the utility model.

Claims (8)

1. a photovoltaic water-raising control cubicle is connected between water pump and the multichannel photovoltaic array, it is characterized in that, said photovoltaic water-raising control cubicle comprises:
Be used to drive the inverter that pumps up water of water pump;
Be used for the multichannel photovoltaic array is carried out the photovoltaic power supply module that parallel connection is confluxed;
Be used for converting the three-phase alternating current civil power to galvanic mains-supplied module; And
Be connected in photovoltaic power supply module, mains-supplied module and the inverter that pumps up water, and to be used for selecting photovoltaic supply module or mains-supplied module according to user's input be the diverter switch module of inverter power supply of pumping up water.
2. photovoltaic water-raising control cubicle according to claim 1; It is characterized in that; Said photovoltaic power supply module comprises the special-purpose fuse of a plurality of photovoltaics, a plurality of counnter attack diode and the special-purpose lightning protection device of photovoltaic; Wherein, Through connecing the positive output end of photovoltaic power supply module behind the special-purpose fuse of corresponding photovoltaic, the corresponding counnter attack diode in the lump, the negative pole of multichannel photovoltaic array input connects the negative output terminal of photovoltaic power supply module to the positive pole of multichannel photovoltaic array input in the lump behind the special-purpose fuse of corresponding photovoltaic successively, and the special-purpose lightning protection device of said photovoltaic is connected between the positive output end and negative output terminal of said photovoltaic power supply module.
3. photovoltaic water-raising control cubicle according to claim 1 is characterized in that, said mains-supplied module comprises:
Be used for converting the three-phase alternating current civil power to galvanic rectification circuit that the inverter that pumps up water is suitable for; And
The pre-charge circuit of the impulse current when being used to suppress the three-phase alternating current civil power and powering on.
4. photovoltaic water-raising control cubicle according to claim 3 is characterized in that, the said inverter that pumps up water comprises the electrochemical capacitor that is connected between the positive and negative bus of the inverter that pumps up water, and said pre-charge circuit comprises:
Be connected the resistance between rectification circuit positive output end and the positive bus-bar;
The switch parallelly connected with resistance; And
Be used to detect the voltage of electrochemical capacitor, and control switch breaks off when the voltage of electrochemical capacitor is lower than setting voltage; First control unit at the voltage of electrochemical capacitor control switch closure during more than or equal to setting voltage.
5. photovoltaic water-raising control cubicle according to claim 4 is characterized in that, said diverter switch module comprises:
Be connected the photovoltaic power supply module and the photovoltaic special DC switch between the inverter of pumping up water;
Be connected the three-phase alternating current switch between three-phase alternating current civil power and the rectification circuit; And
Be used for controlling second control unit of the break-make of photovoltaic special DC switch and three-phase alternating current switch according to user's input.
6. photovoltaic water-raising control cubicle according to claim 5 is characterized in that, said diverter switch module also comprises:
Be used to the interlocking module that prevents that said photovoltaic power supply module and said mains-supplied module from supplying power simultaneously.
7. photovoltaic water-raising control cubicle according to claim 6; It is characterized in that; Said interlocking module comprises: contactor reaches and the corresponding normally closed switch of said photovoltaic special DC switch; Wherein, the switch of said contactor is connected between said three-phase alternating current switch and the rectification circuit, and the coil of said contactor and said normally closed switch are connected between two outputs of said three-phase alternating current switch.
8. a photovoltaic generation water-raising system is characterized in that, comprises each described photovoltaic water-raising control cubicle of water pump, multichannel photovoltaic array and claim 1-7, and wherein, said photovoltaic water-raising control cubicle is connected between said water pump and the multichannel photovoltaic array.
CN2012201257847U 2012-03-29 2012-03-29 Photovoltaic pumping control cabinet and photovoltaic power generation pumping system Expired - Lifetime CN202513667U (en)

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Application Number Priority Date Filing Date Title
CN2012201257847U CN202513667U (en) 2012-03-29 2012-03-29 Photovoltaic pumping control cabinet and photovoltaic power generation pumping system

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Application Number Priority Date Filing Date Title
CN2012201257847U CN202513667U (en) 2012-03-29 2012-03-29 Photovoltaic pumping control cabinet and photovoltaic power generation pumping system

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105089965A (en) * 2015-08-31 2015-11-25 上海俊玥能源科技有限公司 Alternating-current photovoltaic water pump system and control method thereof
CN105450138A (en) * 2014-08-29 2016-03-30 苏州伟创电气设备技术有限公司 Solar photovoltaic frequency converter and photovoltaic pumping system
CN105736281A (en) * 2016-02-16 2016-07-06 江西理工大学 Display device of photovoltaic water pumping system
CN106160201A (en) * 2016-08-30 2016-11-23 四川蜀旺新能源股份有限公司 A kind of photovoltaic for photovoltaic pumping irrigation station and civil power seamless link control system
CN106300072A (en) * 2016-08-31 2017-01-04 四川蜀旺新能源股份有限公司 A kind of easy-to-install compact photovoltaic switch board

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105450138A (en) * 2014-08-29 2016-03-30 苏州伟创电气设备技术有限公司 Solar photovoltaic frequency converter and photovoltaic pumping system
CN105089965A (en) * 2015-08-31 2015-11-25 上海俊玥能源科技有限公司 Alternating-current photovoltaic water pump system and control method thereof
CN105736281A (en) * 2016-02-16 2016-07-06 江西理工大学 Display device of photovoltaic water pumping system
CN105736281B (en) * 2016-02-16 2018-01-05 江西理工大学 A kind of photovoltaic water-raising system exhibiting device
CN106160201A (en) * 2016-08-30 2016-11-23 四川蜀旺新能源股份有限公司 A kind of photovoltaic for photovoltaic pumping irrigation station and civil power seamless link control system
CN106300072A (en) * 2016-08-31 2017-01-04 四川蜀旺新能源股份有限公司 A kind of easy-to-install compact photovoltaic switch board

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Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili nine Xiang Ling Industrial Zone nine building four floor

Patentee after: Shenzhen Solartech Renewable Energy Co., Ltd.

Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili nine Xiang Ling Industrial Zone nine building four floor

Patentee before: Shenzhen Solartech Renewable Energy CO., Ltd.

CX01 Expiry of patent term
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Granted publication date: 20121031