CN203907859U - Photovoltaic air conditioning system - Google Patents
Photovoltaic air conditioning system Download PDFInfo
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- CN203907859U CN203907859U CN201420323437.4U CN201420323437U CN203907859U CN 203907859 U CN203907859 U CN 203907859U CN 201420323437 U CN201420323437 U CN 201420323437U CN 203907859 U CN203907859 U CN 203907859U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 78
- 238000003491 array Methods 0.000 claims abstract description 18
- 230000007704 transition Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The application discloses a photovoltaic air conditioning system, which comprises a plurality of solar cell arrays, a photovoltaic converter and an air conditioning unit, wherein the photovoltaic converter comprises a plurality of booster circuits, a rectification inversion grid-connected circuit and a control circuit, the booster circuits are in one-to-one correspondence with the solar cell arrays, the output ends of the solar cell arrays are connected with the input ends of the corresponding booster circuits, the output ends of the booster circuits are connected with the first side of the rectification inversion grid-connected circuit, the second side of the rectification inversion grid-connected circuit is connected with a single-phase alternating current power grid, and the control circuit is respectively connected with the booster circuits, the rectification inversion grid-connected circuit and the air conditioning unit; and the power supply end of the air conditioning unit is connected with the first side of the rectification inversion grid-connected circuit. The photovoltaic air conditioning system can improve the electric energy utilization rate, reduce the operation and maintenance cost, and is wide in application range.
Description
Technical field
The utility model belongs to air-conditioning technical field, relates in particular to photovoltaic air-conditioning system.
Background technology
Air-conditioning can consume a large amount of electric energy in running, in order to reduce the dependence to non-renewable energy resources, has occurred at present the air-conditioning system that can be powered by solar battery array, and its structure as shown in Figure 1.Comprise: solar battery array, DC/DC (DC-DC) converter, AC/DC (ac/dc) converter, air-conditioning unit and battery.
Wherein, solar battery array utilizes solar energy generating electric energy, by DC/DC converter, the electric energy of solar battery array output is carried out to voltage transitions afterwards, to be the power supply of air-conditioning unit, AC/DC converter is converted to direct current the alternating current in single-phase electrical network, is the power supply of air-conditioning unit.When the power output of solar battery array can not meet the operation demand of air-conditioning unit, the scarce electric energy of air-conditioning unit operation is converted through single-phase electrical network by AC/DC converter, or carries out auxiliary power supply by battery.When the power output of solar battery array is greater than the operate power of air-conditioning unit, the unnecessary power storage of solar battery array output is in battery.
In above-mentioned air-conditioning system, the electric energy that solar battery array produces can only offer air-conditioning unit or be stored in battery, and the memory capacity of battery is limited, when solar battery array produces a large amount of electric energy under sun-drenched condition, unnecessary electric energy may cannot be stored and slatterns due to battery.In addition, the service life of battery is shorter and cost is higher, and this causes the operation expense of air-conditioning system very high.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of photovoltaic air-conditioning system, and the unnecessary electric energy feedback electrical network that solar battery array can be produced to improve energy utilization rate, reduces operation expense simultaneously.
For achieving the above object, the utility model provides following technical scheme:
The utility model discloses a kind of photovoltaic air-conditioning system, comprise a plurality of solar battery arrays, photovoltaic current transformer and air-conditioning unit;
Described photovoltaic current transformer comprises booster circuit, commutation inversion parallel network circuit and control circuit, described booster circuit is a plurality of, a plurality of booster circuits are corresponding one by one with described a plurality of solar battery arrays, the output of described solar battery array connects with the input of corresponding booster circuit, the output of described a plurality of booster circuits is connected with the first side of described commutation inversion parallel network circuit, the second side of described commutation inversion parallel network circuit is connected with single phase ac electrical network, described control circuit respectively with described a plurality of booster circuits, described commutation inversion parallel network circuit is connected with described air-conditioning unit,
The feeder ear of described air-conditioning unit is connected with the first side of described commutation inversion parallel network circuit.
Preferably, in above-mentioned photovoltaic air-conditioning system, described booster circuit comprises the first inductance, the first electric capacity, the first switching tube, the first diode and the second diode, the first end of described the first inductance is connected to the output of described solar battery array, the second end of described the first inductance is connected to the anode of described the first diode, the negative electrode of described the first diode is connected to the first end of described the first electric capacity, the second end ground connection of described the first electric capacity, the first end of described the first switching tube is connected to the second end of described the first inductance, the second end ground connection of described the first switching tube, the control end of described the first switching tube is connected with described control circuit, the negative electrode of described the second diode is connected to the first end of described the first switching tube, the plus earth of described the second diode, the first end of described the first electric capacity is the output of described booster circuit.
Preferably, in above-mentioned photovoltaic air-conditioning system, described booster circuit also comprises the second inductance, second switch pipe, the 3rd diode and the 4th diode; The first end of described the second inductance is connected to the first end of described the first inductance, the second end of described the second inductance is connected to the anode of described the 3rd diode, the negative electrode of described the 3rd diode is connected to the first end of described the first electric capacity, the first end of described second switch pipe is connected to the second end of described the second inductance, the second end ground connection of described second switch pipe, the control end of described second switch pipe is connected with described control circuit, the negative electrode of described the 4th diode is connected to the first end of described second switch pipe, the plus earth of described the 4th diode.
Preferably, in above-mentioned photovoltaic air-conditioning system, described commutation inversion parallel network circuit comprises the 3rd switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, the 3rd inductance, the 4th inductance and four diodes; Described the 3rd switching tube, the 4th switching tube, the 5th switching tube and the 6th switching tube be diode of reverse parallel connection respectively; Described the 3rd first end of switching tube and the output of described a plurality of booster circuits are connected, the second end of described the 3rd switching tube is connected to the first end of described the 4th switching tube, the second end ground connection of described the 4th switching tube, the first end of described the 5th switching tube is connected with the first end of described the 3rd switching tube, the second end of described the 5th switching tube is connected to the first end of described the 6th switching tube, the second end ground connection of described the 6th switching tube, the control end of described the 3rd switching tube, the 4th switching tube, the 5th switching tube and the 6th switching tube is connected with described control circuit respectively; The second end, the other end that one end of described the 3rd inductance is connected to described the 3rd switching tube is connected to the live wire of described single phase ac electrical network, and the second end, the other end that one end of described the 4th inductance is connected to described the 5th switching tube is connected to the zero line of described single phase ac electrical network.
Preferably, in above-mentioned photovoltaic air-conditioning system, described commutation inversion parallel network circuit also comprises the first resistance, the second resistance, the second electric capacity and the 3rd electric capacity; One end of described the first resistance is connected to the first end of described the 3rd switching tube, the other end of described the first resistance is by described the second resistance eutral grounding, one end of described the second electric capacity is connected to the first end of described the 3rd switching tube, the other end of described the second electric capacity is by described the 3rd capacity earth, the common port short circuit of the common port of described the first resistance and the second resistance and described the second electric capacity and the 3rd electric capacity.
Preferably, above-mentioned photovoltaic air-conditioning system also comprises Switching Power Supply; The input of described Switching Power Supply is connected with the first side of described commutation inversion parallel network circuit, and described Switching Power Supply is carried out voltage transitions to the direct current in described photovoltaic current transformer.
Preferably, above-mentioned photovoltaic air-conditioning system also comprises direct current user interface, and the input of described direct current user interface is connected with the first side of the output of described Switching Power Supply or described commutation inversion parallel network circuit.
As can be seen here, the beneficial effects of the utility model are: the above-mentioned disclosed photovoltaic air-conditioning system of the utility model, comprise a plurality of solar battery arrays, photovoltaic current transformer and air-conditioning unit, the electric energy that a plurality of solar battery arrays produce can be the power supply of air-conditioning unit, the electric energy producing at a plurality of solar battery arrays has in remaining situation, can by commutation inversion parallel network circuit by unnecessary electric energy feedback to single phase ac electrical network, thereby raising utilization rate of electrical, because the disclosed photovoltaic air-conditioning system of the utility model does not arrange battery, therefore can avoid producing the expense of changing battery, thereby reduce the operation expense of system.
In addition, the disclosed photovoltaic air-conditioning system of the utility model comprises a plurality of solar battery arrays, because a plurality of solar battery arrays can be installed respectively, therefore in some spaces, less occasion also can be used the disclosed photovoltaic air-conditioning system of the utility model, makes the scope of application of the disclosed photovoltaic air-conditioning system of the utility model wider.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of existing air-conditioning system;
Fig. 2 is the structural representation of the disclosed a kind of photovoltaic air-conditioning system of the utility model;
Fig. 3 is the circuit diagram of the disclosed a kind of booster circuit of the utility model;
Fig. 4 is the circuit diagram of the disclosed another kind of booster circuit of the utility model;
Fig. 5 is the circuit diagram of the disclosed a kind of commutation inversion parallel network circuit of the utility model;
Fig. 6 is the circuit diagram of the disclosed another kind of commutation inversion parallel network circuit of the utility model;
Fig. 7 is the structural representation of the disclosed another kind of photovoltaic air-conditioning system of the utility model.
The specific embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model discloses a kind of photovoltaic air-conditioning system, and the unnecessary electric energy feedback electrical network that solar battery array can be produced to improve utilization rate of electrical, reduces operation expense simultaneously.
Referring to Fig. 2, Fig. 2 is the structural representation of the disclosed a kind of photovoltaic air-conditioning system of the utility model.This photovoltaic air-conditioning system comprises solar battery array 11-13, photovoltaic current transformer 20 and air-conditioning unit 30.
Wherein:
Solar battery array 11-13 utilizes solar energy to produce electric energy output.Each solar battery array can be comprised of the solar-energy photo-voltaic cell unit of any amount, that is to say that the apparent size of each solar battery array can be identical, also can be different.And, the mounting means variation of solar battery array, for example balcony is installed, roof is installed, or metope is installed.
Photovoltaic current transformer 20 comprises booster circuit 211-213, commutation inversion parallel network circuit 22 and control circuit (not shown).Solar battery array 11-13 is corresponding one by one with booster circuit 211-213, the output of solar battery array 11-13 connects with the input of corresponding booster circuit, concrete: the output of solar battery array 11 is connected with the input of booster circuit 211, the output of solar battery array 12 is connected with the input of booster circuit 212, and the output of solar battery array 13 is connected with the input of booster circuit 213.The output of booster circuit 211-213 is connected with the first side of commutation inversion parallel network circuit 22, and the second side of commutation inversion parallel network circuit 22 is connected with single phase ac electrical network AC.Control circuit is connected with booster circuit 211-213, commutation inversion parallel network circuit 22 and air-conditioning unit 30 respectively.
The feeder ear of air-conditioning unit 30 is connected with the first side of commutation inversion parallel network circuit 22.
The above-mentioned disclosed photovoltaic air-conditioning system of the utility model, comprise a plurality of solar battery arrays, photovoltaic current transformer and air-conditioning unit, the electric energy that a plurality of solar battery arrays produce can be the power supply of air-conditioning unit, the electric energy producing at a plurality of solar battery arrays has in remaining situation, can by commutation inversion parallel network circuit by unnecessary electric energy feedback to single phase ac electrical network, thereby raising utilization rate of electrical, because the disclosed photovoltaic air-conditioning system of the utility model does not arrange battery, therefore can avoid producing the expense of changing battery, thereby reduce the operation expense of system.
In addition, existing air-conditioning system only arranges a solar module, and in order to guarantee that the size of this solar module is very large for air-conditioning unit normal power supply, this use occasion to air-conditioning system causes very large restriction.And the disclosed photovoltaic air-conditioning system of the utility model comprises a plurality of solar battery arrays, because a plurality of solar battery arrays can be installed respectively, therefore in some spaces, less occasion also can be used the disclosed photovoltaic air-conditioning system of the utility model, makes the scope of application of the disclosed photovoltaic air-conditioning system of the utility model wider.
Although 3 solar battery arrays and 3 booster circuits have been shown in Fig. 2, should be understood that, the utility model is not limited to this, according to concrete application scenario, this photovoltaic air-conditioning system can arrange the solar battery array of arbitrary number, and corresponding photovoltaic current transformer 20 arranges the booster circuit of equivalent amount.
In the photovoltaic air-conditioning system shown in Fig. 2, booster circuit can adopt various structures.Below in conjunction with Fig. 3 and Fig. 4, two kinds of structures are wherein described.
Referring to Fig. 3, Fig. 3 is the circuit diagram of the disclosed a kind of booster circuit of the utility model.This booster circuit comprises the first inductance L 1, the first capacitor C 1, the first switching tube M1, the first diode D1 and the second diode D2.
The first end of the first inductance L 1 is connected to the output of solar battery array, and the second end of the first inductance L 1 is connected to the anode of the first diode D1, and the negative electrode of the first diode D1 is connected to the first end of the first capacitor C 1, the second end ground connection of the first capacitor C 1.The first end of the first switching tube M1 is connected to the second end of the first inductance L 1, the second end ground connection of the first switching tube M1, and the control end of the first switching tube M1 is connected with control circuit.The negative electrode of the second diode D2 is connected to the first end of the first switching tube M1, the plus earth of the second diode D2.The first end of the first capacitor C 1 is the output of this booster circuit.
When the first switching tube M1 conducting, the electric current of first inductance L 1 of flowing through increases, because inductance has the characteristic that electric current can not suddenly change, at the first switching tube M1 blocking interval, the voltage producing in the first inductance L 1 adds the output voltage of solar battery array, through the first diode D1, the first capacitor C 1 is charged, thereby the electric energy of solar battery array output is forwarded in the first capacitor C 1.
Fig. 4 shows another kind of booster circuit.This booster circuit comprises the first inductance L 1, the first capacitor C 1, the first switching tube M1, the first diode D1, the second diode D2, the second inductance L 2, second switch pipe M2, the 3rd diode D3 and the 4th diode D4.
The first end of the first inductance L 1 is connected to the output of solar battery array, and the second end of the first inductance L 1 is connected to the anode of the first diode D1, and the negative electrode of the first diode D1 is connected to the first end of the first capacitor C 1, the second end ground connection of the first capacitor C 1.The first end of the second inductance L 2 is connected to the first end of the first inductance L 1, and the second end of the second inductance L 2 is connected to the anode of the 3rd diode D3, and the negative electrode of the 3rd diode D3 is connected to the first end of the first capacitor C 1.The first end of the first switching tube M1 is connected to the second end of the first inductance L 1, the second end ground connection of the first switching tube M1, and the control end of the first switching tube M1 is connected with control circuit.The negative electrode of the second diode D2 is connected to the first end of the first switching tube M1, the plus earth of the second diode D2.The first end of second switch pipe M2 is connected to the second end of the second inductance L 2, the second end ground connection of second switch pipe M2, and the control end of second switch pipe M2 is connected with control circuit.The negative electrode of the 4th diode D4 is connected to the first end of second switch pipe M2, the plus earth of the 4th diode.The first end of the first capacitor C 1 is the output of this booster circuit.
Booster circuit shown in Fig. 4 is two-way interleaved boost circuit, and its operation principle is identical with the single channel booster circuit shown in Fig. 3.Because booster circuit shown in Fig. 4 is that two-way is staggered, control, the Primary Component of circuit as the rated capacity of inductance, diode and switching tube be only half of booster circuit as shown in Fig. 3.
Fig. 5 shows a kind of structure of commutation inversion parallel network circuit, comprises the 3rd switching tube M3, the 4th switching tube M4, the 5th switching tube M5, the 6th switching tube M6, the 3rd inductance L 3, the 4th inductance L 4 and four diode D5-D8.
Wherein, the 3rd switching tube M3, the 4th switching tube M4, the 5th switching tube M5 and switching tube of the 6th switching tube M6 difference reverse parallel connection.Concrete, the negative electrode of the 5th diode D5 is connected to the first end of the 3rd switching tube M3, the second end of anodic bonding to the three switching tube M3, the negative electrode of the 6th diode D6 is connected to the first end of the 4th switching tube M4, the second end of anodic bonding to the four switching tube M4, the negative electrode of the 7th diode D7 is connected to the first end of the 5th switching tube M5, the second end of anodic bonding to the five switching tube M5, and the negative electrode of the 8th diode D8 is connected to the first end of the 6th switching tube M6, the second end of anodic bonding to the six switching tube M6.
The 3rd first end of switching tube M3 and the output of a plurality of booster circuits are connected, the second end of the 3rd switching tube M3 is connected to the first end of the 4th switching tube M4, the second end ground connection of the 4th switching tube M4, the first end of the 5th switching tube M5 is connected with the first end of the 3rd switching tube M3, the second end of the 5th switching tube M5 is connected to the first end of the 6th switching tube M6, the second end ground connection of the 6th switching tube M6, in addition, the control end of the 3rd switching tube M3, the 4th switching tube M4, the 5th switching tube M5 and the 6th switching tube M6 is connected with control circuit respectively.
The second end, the other end that one end of the 3rd inductance L 3 is connected to the 3rd switching tube M3 is connected to the live wire L of single phase ac electrical network, and the second end, the other end that one end of the 4th inductance L 4 is connected to the 5th switching tube M5 is connected to the zero line N of single phase ac electrical network.
In enforcement, can also improve the parallel network circuit of commutation inversion shown in Fig. 5, further increase the first resistance R 1, the second resistance R 2 as equalizing resistance, the second capacitor C 2 and the 3rd capacitor C 3 as storage capacitor, as shown in Figure 6.Concrete: one end of the first resistance R 1 is connected to the first end of the 3rd switching tube M3, the other end of the first resistance R 1 is by the second resistance R 2 ground connection, one end of the second capacitor C 2 is connected to the first end of the 3rd switching tube M3, the other end of the second capacitor C 2 is by the 3rd capacitor C 3 ground connection, the common port short circuit of the common port of the first resistance R 1 and the second resistance R 2 and the second capacitor C 2 and the 3rd capacitor C 3.
In the commutation inversion parallel network circuit shown in Fig. 5 and Fig. 6, the first end of the 3rd switching tube M3 is as the first side of commutation inversion parallel network circuit, be connected with air-conditioning unit with the output of each booster circuit, and second end (namely the 4th inductance L 4 is connected one end of zero line) of the second end of the 3rd inductance L 3 (namely the 3rd inductance L 3 connects one end of live wires) and the 4th inductance L 4 is as the second side of commutation inversion parallel network circuit, be connected with single phase ac electrical network.
When commutation inversion parallel network circuit works in rectification state, the electric energy of single phase ac electrical network flows into commutation inversion parallel network circuit, by commutation inversion parallel network circuit, is undertaken forming direct current after rectification, is the power supply of air-conditioning unit.Its operation principle is: when the 4th switching tube M4 conducting, current path is live wire L-the 3rd inductance L 3-the 4th switching tube M4-the 8th diode D8-the 4th inductance L 4-zero line N, in the 4th switching tube M4 conduction period, the electric current of the 3rd inductance L 3 of flowing through increases, store electrical energy; When the 4th switching tube M4 turn-offs, the electric energy being stored in the 3rd inductance L 3 flows out through the 5th diode D5, is the power supply of air-conditioning unit.
The utility model also discloses a kind of photovoltaic air-conditioning system, and its structure as shown in Figure 7.Here only just describe with the difference of the air-conditioning system of photovoltaic shown in Fig. 2.
In the air-conditioning system of photovoltaic shown in Fig. 7, further be provided with Switching Power Supply 40, the input of Switching Power Supply 40 is connected with the first side of commutation inversion parallel network circuit 22, direct current in photovoltaic current transformer 20 (can be the direct current of booster circuit output, can be also the direct current of commutation inversion parallel network circuit 22 outputs) is carried out to voltage transitions.In enforcement, low-voltage direct load in air-conditioning unit 30 can be connected with the output of Switching Power Supply 40, by Switching Power Supply 40, be each low-voltage direct load supplying, wherein the low-voltage direct load in air-conditioning unit 30 includes but not limited to control chip, valve class, sensor.
In addition, in the air-conditioning system of photovoltaic shown in Fig. 7, be also provided with direct current user interface 50, the input of direct current user interface 50 is connected with the output of Switching Power Supply 40 or the first side of commutation inversion parallel network circuit 22, and user can be plugged on direct current user interface 50 by other consumers (as illuminating lamp, fan, water heater etc.).In enforcement, the direct current user interface of direct current 380V, 220V, 24V and 15V can be set.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.For the disclosed device of embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part partly illustrates referring to method.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a photovoltaic air-conditioning system, is characterized in that, comprises a plurality of solar battery arrays, photovoltaic current transformer and air-conditioning unit;
Described photovoltaic current transformer comprises booster circuit, commutation inversion parallel network circuit and control circuit, described booster circuit is a plurality of, a plurality of booster circuits are corresponding one by one with described a plurality of solar battery arrays, the output of described solar battery array connects with the input of corresponding booster circuit, the output of described a plurality of booster circuits is connected with the first side of described commutation inversion parallel network circuit, the second side of described commutation inversion parallel network circuit is connected with single phase ac electrical network, described control circuit respectively with described a plurality of booster circuits, described commutation inversion parallel network circuit is connected with described air-conditioning unit,
The feeder ear of described air-conditioning unit is connected with the first side of described commutation inversion parallel network circuit.
2. photovoltaic air-conditioning system according to claim 1, is characterized in that, described booster circuit comprises the first inductance, the first electric capacity, the first switching tube, the first diode and the second diode;
The first end of described the first inductance is connected to the output of described solar battery array, the second end of described the first inductance is connected to the anode of described the first diode, the negative electrode of described the first diode is connected to the first end of described the first electric capacity, the second end ground connection of described the first electric capacity, the first end of described the first switching tube is connected to the second end of described the first inductance, the second end ground connection of described the first switching tube, the control end of described the first switching tube is connected with described control circuit, the negative electrode of described the second diode is connected to the first end of described the first switching tube, the plus earth of described the second diode, the first end of described the first electric capacity is the output of described booster circuit.
3. photovoltaic air-conditioning system according to claim 2, is characterized in that, described booster circuit also comprises the second inductance, second switch pipe, the 3rd diode and the 4th diode;
The first end of described the second inductance is connected to the first end of described the first inductance, the second end of described the second inductance is connected to the anode of described the 3rd diode, the negative electrode of described the 3rd diode is connected to the first end of described the first electric capacity, the first end of described second switch pipe is connected to the second end of described the second inductance, the second end ground connection of described second switch pipe, the control end of described second switch pipe is connected with described control circuit, the negative electrode of described the 4th diode is connected to the first end of described second switch pipe, the plus earth of described the 4th diode.
4. according to the photovoltaic air-conditioning system described in claim 1,2 or 3, it is characterized in that, described commutation inversion parallel network circuit comprises the 3rd switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, the 3rd inductance, the 4th inductance and four diodes;
Described the 3rd switching tube, the 4th switching tube, the 5th switching tube and the 6th switching tube be diode of reverse parallel connection respectively;
Described the 3rd first end of switching tube and the output of described a plurality of booster circuits are connected, the second end of described the 3rd switching tube is connected to the first end of described the 4th switching tube, the second end ground connection of described the 4th switching tube, the first end of described the 5th switching tube is connected with the first end of described the 3rd switching tube, the second end of described the 5th switching tube is connected to the first end of described the 6th switching tube, the second end ground connection of described the 6th switching tube, the control end of described the 3rd switching tube, the 4th switching tube, the 5th switching tube and the 6th switching tube is connected with described control circuit respectively;
The second end, the other end that one end of described the 3rd inductance is connected to described the 3rd switching tube is connected to the live wire of described single phase ac electrical network, and the second end, the other end that one end of described the 4th inductance is connected to described the 5th switching tube is connected to the zero line of described single phase ac electrical network.
5. photovoltaic air-conditioning system according to claim 4, is characterized in that, described commutation inversion parallel network circuit also comprises the first resistance, the second resistance, the second electric capacity and the 3rd electric capacity;
One end of described the first resistance is connected to the first end of described the 3rd switching tube, the other end of described the first resistance is by described the second resistance eutral grounding, one end of described the second electric capacity is connected to the first end of described the 3rd switching tube, the other end of described the second electric capacity is by described the 3rd capacity earth, the common port short circuit of the common port of described the first resistance and the second resistance and described the second electric capacity and the 3rd electric capacity.
6. according to the photovoltaic air-conditioning system described in claim 1,2,3 or 5, it is characterized in that, also comprise Switching Power Supply;
The input of described Switching Power Supply is connected with the first side of described commutation inversion parallel network circuit, and described Switching Power Supply is carried out voltage transitions to the direct current in described photovoltaic current transformer.
7. photovoltaic air-conditioning system according to claim 6, is characterized in that, also comprises direct current user interface, and the input of described direct current user interface is connected with the first side of the output of described Switching Power Supply or described commutation inversion parallel network circuit.
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| CN201420323437.4U CN203907859U (en) | 2014-06-17 | 2014-06-17 | Photovoltaic air conditioning system |
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| CN201420323437.4U CN203907859U (en) | 2014-06-17 | 2014-06-17 | Photovoltaic air conditioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006479A (en) * | 2014-06-17 | 2014-08-27 | 珠海格力电器股份有限公司 | Photovoltaic air conditioning system and control method thereof |
| CN104329758A (en) * | 2014-11-05 | 2015-02-04 | 中国扬子集团滁州扬子空调器有限公司 | Photovoltaic-drive heat pipe combined machine room air conditioning unit |
-
2014
- 2014-06-17 CN CN201420323437.4U patent/CN203907859U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006479A (en) * | 2014-06-17 | 2014-08-27 | 珠海格力电器股份有限公司 | Photovoltaic air conditioning system and control method thereof |
| CN104329758A (en) * | 2014-11-05 | 2015-02-04 | 中国扬子集团滁州扬子空调器有限公司 | Photovoltaic-drive heat pipe combined machine room air conditioning unit |
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