CN207691757U - A kind of new energy electricity system - Google Patents
A kind of new energy electricity system Download PDFInfo
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- CN207691757U CN207691757U CN201820100025.2U CN201820100025U CN207691757U CN 207691757 U CN207691757 U CN 207691757U CN 201820100025 U CN201820100025 U CN 201820100025U CN 207691757 U CN207691757 U CN 207691757U
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- energy
- switch
- photovoltaic controller
- photovoltaic
- energy storage
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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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- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a kind of new energy electricity system, including photovoltaic power generation apparatus, the first photovoltaic controllers, first switch, chemical energy storage device, the second photovoltaic controller, load, second switch, third photovoltaic controller, third switch, energy buffer device, illuminance detecting device and energy buffer control device；First switch is connected into the first branch with chemical energy storage device, second switch, third photovoltaic controller, third switch are connected into the second branch, the first branch and the second branch are simultaneously unified into parallel branch, first photovoltaic controller one end tandem photovoltaic power generator, the other end are sequentially connected in series parallel branch, the second photovoltaic controller and load；Third photovoltaic controller also concatenates energy buffer device；Energy buffer control device also data transmission connects the first, second and third photovoltaic controller, the first, second and third switch, chemical energy storage device, energy buffer device, illuminance detecting device.The system can effectively extend the service life of chemical energy storage system.
Description
Technical field
The utility model is related to a kind of new energy electricity systems.
Background technology
With the decline of photovoltaic generation cost, photovoltaic generation is more and more universal, in order to improve the utilization rate of photovoltaic generation, light
The application for lying prostrate energy storage integrated is more and more.
It is well known that there are unstability and intermittence for photovoltaic generation, with the variation of illumination condition, the work(of photovoltaic generation
Rate changes at any time, and the electric current of photovoltaic generation also changes therewith.
Using the energy-storage system of chemical energy storage mode, all there are some common problems, such as：Long-time low current charge makes
Battery is chronically at polarized state, be easy to cause battery afflux liquid corrosion, active material softening and shedding；Large current charge can cause
Battery Wen Sheng and dehydration；With the passage of service time of battery, part active material can be gradually passivated in battery, if periodically big
Current activation can extend some common problems such as service life of battery.
Utility model content
For overcome the deficiencies in the prior art, the goal of the invention of the utility model is to provide a kind of new energy electricity consumption system
System can effectively extend the service life of chemical energy storage system, improve efficiency and the safety of photovoltaic energy storage system.
In order to achieve the above-mentioned object of the invention, technical solution used by the utility model is as follows：
A kind of new energy electricity system, including photovoltaic power generation apparatus, the first photovoltaic controller, first switch, chemical energy storage
Device, the second photovoltaic controller, load, second switch, third photovoltaic controller, third switch, energy buffer device, illuminance
Detection device and energy buffer control device；The first switch forms the first branch with chemical energy storage device electrical series,
The second switch, third photovoltaic controller, third switch electrical series formed the second branch, the first branch with second
Road is electrically in parallel to form parallel branch, photovoltaic power generation apparatus described in the electrical series of first photovoltaic controller one end, the other end
The parallel branch, the second photovoltaic controller and load are electrically concatenated successively；The third photovoltaic controller also electrically concatenates institute
State energy buffer device；The energy buffer control device also data transmission connection first photovoltaic controller, first switch,
Chemical energy storage device, the second photovoltaic controller, second switch, third photovoltaic controller, third switch, energy buffer device, light
Illumination testing apparatus.
Preferably, the energy buffer device is high-specific-power low specific energy energy-storage units.
Preferably, the high-specific-power low specific energy energy-storage units include ultracapacitor and/or Ni-MH battery.
Preferably, the capacity of the energy buffer device is more than the 1/1000 of the chemical energy storage installed capacity, is less than institute
State photovoltaic power generation apparatus under standard radiation parameter one hour generated energy 1/10, the standard radiation parameter refers to solar irradiation
Degree is more than 200W/m2。
Preferably, the photovoltaic power generation apparatus gives the chemical energy storage by the way of constant voltage and current limiting temperature control intermittent impulse
Device provides electric energy.
Preferably, the chemical energy storage device includes lead-acid battery and/or lithium ion battery.
Preferably, first photovoltaic controller is voltage stabilizing follower, and second photovoltaic controller is energy storage inverter,
The third photovoltaic controller is DC/DC regulated power supplies.
Preferably, the illuminance detecting device is meteorological Acquisition Instrument.
Preferably, the load is illuminator.
Compared with prior art, the beneficial effects of the utility model are：
The new energy electricity system of the utility model, structure can improve the power generation effect of 3% or more photovoltaic power generation apparatus
Rate；Extend the service life of chemical energy storage system up to 20%.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and being implemented in accordance with the contents of the specification, and in order to allow the above and other purpose, feature of the utility model
It can be clearer and more comprehensible with advantage, it is special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.
Description of the drawings
Fig. 1 is the topological diagram of the new energy electricity system more preferably embodiment of the utility model；
Fig. 2 is the system fitting arrangement of the new energy electricity system more preferably embodiment of utility model.
In figure, 1, photovoltaic power generation apparatus；2, the first photovoltaic controller；3, first switch；4, chemical energy storage device；5, second
Photovoltaic controller；6, it loads；7, second switch；8, third photovoltaic controller；9, third switchs；10, energy buffer device；11、
Illuminance detecting device；12, energy buffer control device.Also, solid line is forceful electric power signal wire in figure, and dotted line is weak electric signal
Line.
Specific implementation mode
Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose of utility model is taken,
Below in conjunction with attached drawing and preferred embodiment, to foundation specific embodiment of the present utility model, structure, feature and its effect, in detail
Carefully it is described as follows：
The new energy electricity system of the utility model includes photovoltaic power generation apparatus 1, the first photovoltaic controller 2, first switch
3, chemical energy storage device 4, the second photovoltaic controller 5, load 6, second switch 7, third photovoltaic controller 8, third switch 9, energy
Source buffer unit 10, illuminance detecting device 11 and energy buffer control device 12；The first switch 3 and chemical energy storage
4 electrical series of device form the first branch, and the second switch 7, third photovoltaic controller 8,9 electrical series of third switch are formed
The second branch, electrically formation parallel branch in parallel, described first photovoltaic controller, 2 one end are electric with the second branch for the first branch
Property the series connection photovoltaic power generation apparatus 1, the other end electrically concatenates the parallel branch, the second photovoltaic controller 5 and load successively
6；The third photovoltaic controller 8 also electrically concatenates the energy buffer device；The energy buffer control device 12 also data
Transmission connects first photovoltaic controller 2, first switch 3, chemical energy storage device 4, the second photovoltaic controller 5, second switch
7, third photovoltaic controller 8, third switch 9, energy buffer device 10, illuminance detecting device 11.
In order to buffer the unstability of photovoltaic power generation apparatus 1, impact and damage of the reduction to chemical energy storage device 4 are described
Energy buffer device 10 is high-specific-power low specific energy energy-storage units.In the present embodiment, the preferably described high-specific-power is low compares energy
It includes ultracapacitor and/or Ni-MH battery to measure energy-storage units.
The capacity of the energy buffer device 10 is more than the 1/1000 of 4 capacity of chemical energy storage device, is less than the light
Lie prostrate power generator 1 under standard radiation parameter one hour generated energy 1/10, the standard radiation parameter refers to solar irradiance
More than 200W/m2。
In order to activate the capacity of chemical energy storage device 4, the service life of chemical energy storage device 4, the photovoltaic generation are improved
Device 1 provides electric energy by the way of constant voltage and current limiting temperature control intermittent impulse to the chemical energy storage device 4.In the present embodiment
In, the photovoltaic power generation apparatus 1 is solar components, and the chemical energy storage device 4 includes lead-acid battery and/or lithium-ion electric
Pond.
First photovoltaic controller 2 is voltage stabilizing follower, and second photovoltaic controller 5 is energy storage inverter, described
Third photovoltaic controller 8 is DC/DC regulated power supplies.
In order to simplify the structure of the utility model new energy electricity system, the illuminance detecting device 11 is meteorological acquires
Instrument.
The load 6 is illuminator.
Illustrate the operation principle and energy of the new energy electricity system of the utility model with reference to two use cases
The advantageous effects enough reached.
Case one：New energy waiting booth
A kind of photovoltaic energy storage integrated waiting booth system, wherein the installed power of photovoltaic power generation apparatus 1 is 740Wp, mainly
It is composed in series by the solar components of 4 pieces of 18V, 190Wp, chemical energy storage device 4 is adopted using the lead carbon battery of 4 12V, 120Ah
With concatenated combination again after first two parallel connections；Energy buffer device 10 is loaded 6 and is adopted using the Ni-MH battery group of 28.8V, 6Ah
With the adjustable LED lamp of 24V, 220W.The electric energy that photovoltaic power generation apparatus 1 provides passes through the first photovoltaic controller 2 or third photovoltaic control
Device 8 processed corresponds to voltage stabilizing and exports to chemical energy storage device 4 or energy buffer device 10, and the electric energy of energy buffer device 10 passes through third
Photovoltaic controller 8 (in present case, it is DC/DC regulated power supplies that the third, which patronizes controller) is exported to chemical energy storage device 4,
The electric energy of chemical energy storage device 4 is exported by the second photovoltaic controller 5 to the adjustable LED lamp.The scheduling controlling of all electric energy
It is realized and is controlled by energy buffer control device 12, the topological diagram of new energy electricity system is illustrated in fig. 1 shown below.
Wherein photovoltaic power generation apparatus 1 is fixedly mounted on the ceiling of Waiting Lounge, chemical energy storage device 4 and energy buffer device 10
It buries and is placed on underground (i.e. 0.5 meter from earth's surface or more of position), other devices are fixed in the lamp box of waiting booth, the installation cloth of system
It is as shown in Figure 2 to set figure.
The operation control logic of photovoltaic energy storage integrated waiting booth system is as follows：
When energy buffer control device 12 detects that solar irradiance is more than 200W/m by illuminance detecting device 112When
It waits, first switch 3 is connected, and second switch 7 disconnects, and system skips energy buffer device 10 and directly works, and photovoltaic power generation apparatus 1 is sent out
Electricity is powered by the first photovoltaic controller 2 directly to chemical energy storage device 4；
When energy buffer control device 12 detects that solar irradiance is less than 200W/m by illuminance detecting device 112
When, first switch 3 disconnects, and second switch 7 is connected, to disconnect the connection of photovoltaic power generation apparatus 1 and chemical energy storage device 4, and
After photovoltaic power generation apparatus 1 generates electricity, electric energy is supplied directly to energy buffer device 10；
When energy buffer control device 12 detects that 10 capacity of energy buffer device is higher than by illuminance detecting device 11
When 80%, system turn on automatically third switch 9 uses constant pressure (28.8V) current limliting (24A) mode pair by energy buffer device 10
Chemical energy storage device 4 charges, and when the voltage of chemical energy storage device 4 reaches threshold values 28.8V, electric current gradually reduces, Zhi Daoneng
The capacity of source buffer unit 10 stops filling less than 20% or when the battery surface temperature of energy buffer device 10 is more than 40 DEG C
Electricity disconnects third switch 9.
The photovoltaic energy storage integrated waiting booth running effect is as follows：
1. the generating efficiency of photovoltaic power generation apparatus 1 improves 3.4%；
2. the life-span upgrading 28% of chemical energy storage device 4.
Case two：The integrated DC bus system of industry and commerce building light storage
The integrated DC bus system of a kind of industry and commerce building light storage, wherein the installed power of photovoltaic power generation apparatus 1 is
312kWp is made of the string of solar components 20 60 of 1200 pieces of 36V, 260Wp, 190 2V of the use of chemical energy storage device 4,
The lead carbon battery of 800Ah is composed in series；Energy buffer device 10 passes through the first photovoltaic control using the Ni-MH battery group of 450V, 6Ah
Device 2 or third photovoltaic controller 8 processed correspond to voltage stabilizing and export to chemical energy storage device 4 or energy buffer device 10, energy buffer dress
It is defeated by third photovoltaic controller 8 (in present case, it is DC/DC regulated power supplies that the third, which patronizes controller) to set 10 electric energy
Go out to chemical energy storage device 4, by the second photovoltaic controller 5, (photovoltaic controller is energy storage to the electric energy of chemical energy storage device 4
Inverter) to load 6, the scheduling controlling of all electric energy is realized by energy buffer control device 12 to be controlled for output.
The operation control logic of the integrated DC bus system of industry and commerce building light storage is as follows：
When solar irradiance is more than 200W/m2When, first switch 3K1 is connected, and second switch 7K2 is disconnected, and system skips energy
Source buffer unit 10 directly works, and the first photovoltaic controller 2 is passed through in the power generation of photovoltaic power generation apparatus 1, directly to chemical energy storage device 4
Power supply；
When solar irradiance is less than 200W/m2When, first switch 3 disconnects, and second switch 7 is connected, and disconnects photovoltaic generation dress
The connection for setting 1 and chemical energy storage device 4 is powered after energy buffer device 10 to chemical energy storage device 4；
When 10 capacity of energy buffer device is higher than 80%, system turn on automatically third switch 9, by energy buffer device 10
It is charged to chemical energy storage device 4 using constant pressure (456V) current limliting (160A), when the voltage of chemical energy storage device 4 reaches threshold values
When 456V, electric current gradually reduces, until the capacity of energy buffer device 10 is less than the battery of 20% or energy buffer device 10
When surface temperature is more than 40 DEG C, stop charging, disconnects third switch 9.
The integrated DC bus system operational effect of industry and commerce building light storage is as follows：
1, the generating efficiency of photovoltaic power generation apparatus 1 improves 6.7%；
2, the life-span upgrading 35% of chemical energy storage device 4.
The above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model range claimed.
Claims (9)
1. a kind of new energy electricity system, it is characterised in that：Including photovoltaic power generation apparatus, the first photovoltaic controller, first switch,
Chemical energy storage device, the second photovoltaic controller, load, second switch, third photovoltaic controller, third switch, energy buffer dress
It sets, illuminance detecting device and energy buffer control device；The first switch is formed with chemical energy storage device electrical series
The first branch, the second switch, third photovoltaic controller, third switch electrical series formation the second branch, described first
The electrical formation parallel branch in parallel of road and the second branch, photovoltaic generation described in the electrical series of first photovoltaic controller one end fill
It sets, the other end electrically concatenates the parallel branch, the second photovoltaic controller and load successively；The third photovoltaic controller is also electric
Property the concatenation energy buffer device；The energy buffer control device also data transmission connects first photovoltaic controller,
First switch, chemical energy storage device, the second photovoltaic controller, second switch, third photovoltaic controller, third switch, the energy are slow
Flushing device, illuminance detecting device.
2. new energy electricity system according to claim 1, it is characterised in that：The energy buffer device is high-specific-power
Low specific energy energy-storage units.
3. new energy electricity system according to claim 2, it is characterised in that：The high-specific-power low specific energy energy storage list
Member includes ultracapacitor and/or Ni-MH battery.
4. new energy electricity system according to claim 1, it is characterised in that：The capacity of the energy buffer device is more than
The 1/1000 of the chemical energy storage installed capacity is less than the photovoltaic power generation apparatus one hour generated energy under standard radiation parameter
1/10, the standard radiation parameter refer to solar irradiance be more than 200W/m2。
5. new energy electricity system according to claim 1, it is characterised in that：The photovoltaic power generation apparatus is limited using constant pressure
The mode of flow control temperature intermittent impulse provides electric energy to the chemical energy storage device.
6. new energy electricity system according to claim 1, it is characterised in that：The chemical energy storage device includes plumbic acid electricity
Pond and/or lithium ion battery.
7. new energy electricity system according to claim 1, it is characterised in that：First photovoltaic controller is that voltage stabilizing is defeated
Go out device, second photovoltaic controller is energy storage inverter, and the third photovoltaic controller is DC/DC regulated power supplies.
8. new energy electricity system according to claim 1, it is characterised in that：The illuminance detecting device is adopted for meteorology
Collect instrument.
9. new energy electricity system according to claim 1, it is characterised in that：The load is illuminator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820100025.2U CN207691757U (en) | 2018-01-18 | 2018-01-18 | A kind of new energy electricity system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820100025.2U CN207691757U (en) | 2018-01-18 | 2018-01-18 | A kind of new energy electricity system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207691757U true CN207691757U (en) | 2018-08-03 |
Family
ID=62990378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820100025.2U Active CN207691757U (en) | 2018-01-18 | 2018-01-18 | A kind of new energy electricity system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207691757U (en) |
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2018
- 2018-01-18 CN CN201820100025.2U patent/CN207691757U/en active Active
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Effective date of registration: 20221020 Granted publication date: 20180803 |
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