CN208608917U - A kind of light storage electricity generation system - Google Patents
A kind of light storage electricity generation system Download PDFInfo
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- CN208608917U CN208608917U CN201821019844.0U CN201821019844U CN208608917U CN 208608917 U CN208608917 U CN 208608917U CN 201821019844 U CN201821019844 U CN 201821019844U CN 208608917 U CN208608917 U CN 208608917U
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- 230000005611 electricity Effects 0.000 title claims abstract description 75
- 238000003860 storage Methods 0.000 title abstract description 63
- 238000004146 energy storage Methods 0.000 claims abstract description 65
- 238000001514 detection method Methods 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 abstract description 45
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010248 power generation Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- HVMJUDPAXRRVQO-UHFFFAOYSA-N copper indium Chemical compound [Cu].[In] HVMJUDPAXRRVQO-UHFFFAOYSA-N 0.000 description 1
- QNWMNMIVDYETIG-UHFFFAOYSA-N gallium(ii) selenide Chemical compound [Se]=[Ga] QNWMNMIVDYETIG-UHFFFAOYSA-N 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009466 transformation Effects 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
-
- 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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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a kind of light storage electricity generation system, specifically includes: solar components, energy storage device, the first power converter and the second power converter；Wherein, the energy storage device is connect with the input terminal of first power converter, second power converter respectively；The solar components are connect with the output end of first power converter；The negative pole of output end of first power converter is connect with the output head anode of second power converter；The output head anode of first power converter is used to connect with the anode of load, and the cathode of second power converter with the cathode of the load for connecting.The light storage electricity generation system energy conversion efficiency of the utility model embodiment is high, and kwh loss is lower, moreover, reliability and redundancy are higher.
Description
Technical field
The utility model relates to energy technology fields, store up electricity generation system more particularly to a kind of light.
Background technique
Light storage power generation increases year by year, has become green energy resource indispensable in new energy.As light stores up electricity generation system
Lightweight, miniaturization, the especially maturation of thin film solar technology, portable, moveable light storage electricity generation system at
For fast-developing new industry.Since light storage power generation has the power generation characteristics changed with environment temperature and illumination variation,
In practical application, in order to realize that lasting reliable power generation, existing light storage electricity generation system are often integrated with solar components and storage
The two generating equipments of energy device.
Inventor has found during implementing the utility model, in order to realize the tracking of solar energy pressure point of maximum efficiency and meet
The requirement of load, in existing light storage electricity generation system, in solar components and energy storage device the two generating equipments, at least one
It is a to need to pass sequentially through two power conversion devices progress power conversions twice, ability powering load, in this way, not only making light
The energy conversion efficiency for storing up electricity generation system is lower, and kwh loss is larger；It is also possible to light storage electricity generation system is caused to there is fever
Phenomenon influences service life.Moreover, in existing light storage electricity generation system, often in the output end string of a power conversion device
Connection connection load, when failing or damage occur in the power conversion device, it will causing entire light to store up electricity generation system can not be to
Load supplying, that is to say, that the reliability and redundancy of existing light storage electricity generation system are poor.
Utility model content
In view of the above problems, the utility model is proposed to overcome the above problem in order to provide one kind or at least partly solve
Certainly a kind of light of the above problem stores up electricity generation system.
To solve the above-mentioned problems, the utility model discloses a kind of light to store up electricity generation system, comprising: solar components, storage
It can device, the first power converter and the second power converter；Wherein
The energy storage device is connect with the input terminal of first power converter, second power converter respectively；
The solar components are connect with the output end of first power converter；
The negative pole of output end of first power converter is connect with the output head anode of second power converter；
The output head anode of first power converter is used to connect with the anode of load, second power converter
Cathode for being connect with the cathode of the load.
Preferably, in first power converter and second power converter, at least one power converter is
Isolated form power converter.
Preferably, the output head anode of the solar components, negative pole of output end respectively with first power converter
Output head anode, negative pole of output end connection.
Preferably, the output head anode of the energy storage device, negative pole of output end respectively with first power converter
Input anode, input cathode connection.
Preferably, the output head anode of the energy storage device, negative pole of output end respectively with second power converter
Input anode, input cathode connection.
Preferably, the energy storage device is single energy-storage battery, alternatively, be made of multiple energy-storage battery series/parallels
Energy-storage battery group.
Preferably, first power converter include: the first controller and connect with first controller
One voltage detecting circuit, second voltage detection circuit, first voltage conversion circuit；Wherein
The first voltage detection circuit is connect with the input terminal of first power converter；
The second voltage detection circuit is connect with the output end of first power converter.
Preferably, second power converter include: second controller and connect with the second controller
Three voltage detecting circuits, the 4th voltage detecting circuit, second voltage conversion circuit；Wherein
The tertiary voltage detection circuit is connect with the input terminal of second power converter；
4th voltage detecting circuit is connect with the output end of second power converter.
Preferably, the solar components component is flexible solar component.
The utility model includes following advantages:
Firstly, the utility model embodiment light storage electricity generation system in, due to the input terminal of first power converter,
Output end is connect with the energy storage device, the solar components respectively, and in practical applications, first power converter can
So that the solar components charge to the energy storage device with maximum output power, to realize the smooth Chu Fa electricity
The pressure point of maximum efficiency of system tracks, that is to say, that the solar components only need power conversion of progress that maximum can be completed
Efficient point tracking, energy conversion rate is high, and kwh loss is lower.
Moreover, in the light storage electricity generation system of the utility model embodiment, due to the output end of first power converter
Cathode is connect with the output head anode of second power converter, and the output head anode of first power converter can be used
It is connect in the anode with load, the cathode of second power converter can be used for connecting with the cathode of the load.In reality
In the application of border, first power converter and second power converter can cooperate, powering load.Namely
Say, the energy storage device and the solar components only need to carry out a power conversion can powering load, energy conversion effect
Rate is high, and kwh loss is lower.
In addition, the solar components are connect with the output end of first power converter, and first power turns
The negative pole of output end of parallel operation is connect with the output head anode of second power converter, in practical applications, described first
When power converter and/or the second power converter break down, the light storage electricity generation system still can be with powering load.This
Light described in utility model embodiment stores up Generation System Reliability and redundancy is higher.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of light storage electricity generation system of the utility model.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.Obviously, described embodiment is only the utility model
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, fall within the protection scope of the utility model.
The utility model embodiment provides a kind of light storage electricity generation system, can specifically include: solar components, energy storage dress
It sets, the first power converter and the second power converter；Wherein, the energy storage device respectively with the first power converting means
It sets, the connection of the input terminal of second power converter；The output end of the solar components and first power converter
Connection；The negative pole of output end of first power converter is connect with the output head anode of second power converter；It is described
The output head anode of first power converter is used to connect with the anode of load, the cathode of second power converter for
The cathode of the load connects.
In the light storage electricity generation system of the utility model embodiment, due to the input terminal of first power converter, output
End is connect with the energy storage device, the solar components respectively, and in practical applications, first power converter can make
It obtains the solar components to charge to the energy storage device with maximum output power, to realize the light storage electricity generation system
Pressure point of maximum efficiency tracking, that is to say, that the solar components only need to carry out the conversion of power maximal efficiency can be completed
Point tracking, energy conversion rate is high, and kwh loss is lower.
Moreover, because the output of the negative pole of output end of first power converter and second power converter is rectified
Pole connection, the output head anode of first power conversion device can be used for connecting with the anode of load, second power
The cathode of converter can be used for connecting with the cathode of the load.In practical applications, second power converter and institute
Stating the second conversion equipment can act synergistically, powering load.That is, the energy storage device and the solar components are only
Need to carry out the conversion of power can powering load, energy conversion efficiency is high, and kwh loss is lower.
In addition, the solar components are connect with the output end of first power converter, and first power turns
The negative pole of output end of parallel operation is connect with the output head anode of second power converter, in practical applications, described first
When power converter and/or the second power conversion device break down, the light storage electricity generation system still can be with powering load.
Light described in the utility model embodiment stores up Generation System Reliability and redundancy is higher.
The storage of light described in the utility model embodiment electricity generation system can be removable, portable light storage electricity generation system,
It is also possible to large-scale light storage power generator, the light of fixation stores up the other kinds of light storage electricity generation system such as power station.This is practical new
Type embodiment is mainly illustrated by taking removable, portable light storage electricity generation system as an example, and other kinds of light stores up electricity generation system
It implements.In practical applications, the light storage electricity generation system is used to mobile phone, tablet computer, laptop
Or the load equipments such as charger baby charging.
Referring to Fig.1, a kind of structural schematic diagram of light storage electricity generation system of the utility model is shown, can specifically include:
Solar components 10, energy storage device 11, the first power converter 12 and the second power converter 13；Wherein, energy storage device 11
It is connect respectively with the input terminal of the first power converter 12, the second power converter 13；Solar components 10 and the first power turn
The output end of parallel operation 12 connects；The output head anode of the negative pole of output end of first power converter 12 and the second power converter 13
Connection；The output head anode of first power converter 12 is used to connect with the anode of load, the cathode of the second power converter 13
For being connect with the cathode of the load.Light described in the utility model embodiment stores up in electricity generation system, and solar components 10 are only
Need to carry out a power conversion can be completed pressure point of maximum efficiency tracking, and energy conversion rate is high, and kwh loss is lower；Moreover, energy storage
Device 11 and solar components 10 only need to carry out the conversion of power can powering load, energy conversion efficiency is high, electricity damage
It consumes lower；In addition, when the first power converter 12 and/or the second power converter 13 break down, the light storage power generation system
System still can be with powering load, and the storage Generation System Reliability of light described in the utility model embodiment and redundancy are higher.
In the utility model embodiment, due to the negative pole of output end and the second power converter 13 of the first power converter 12
Output head anode connection, the first power converter 12 and the second power converter 13 can act synergistically, powering load.It can
Selection of land, in order to avoid the first power converter 12 and the second power converter 13 influence each other, optionally, the first power converter
12 and second in power converter 13, at least one power converter is isolated form power converter.
In practical applications, isolated form power converter can be by the current signal of input or voltage signal isolation transformation
At output current signal perhaps voltage signal moreover, power supply, the current signal of input or voltage signal, output electric current
Can be mutually isolated between signal or voltage signal this three, therefore, in the utility model embodiment, if the first power turns
In parallel operation 12 and the second power converter 13, at least one power converter is isolated form power converter, then the first power turns
The output end of parallel operation 12 and the second power converter 13 can be mutually isolated, in turn, in the first power converter 12 and the second function
The output end of rate converter 13 can be mutually isolated situation synergistic effect, powering load.
It is understood that in practical applications, the first power may be set according to actual conditions in those skilled in the art
The type of converter 12 and the second power converter 13, the utility model embodiment is for the first power converter 12 and the second function
The concrete type of rate converter 13 is without limitation.
For example, first power converter 12 or the second power converter 13 are set as isolated form power converter,
Correspondingly, the second power converter 13 or the first power converter 12 are set as a non-isolation type power converter.
For another example, the first power converter 12 and the second power converter 13 are set to isolated form power converter.
In the utility model embodiment, output head anode, the negative pole of output end of solar components 10 respectively can be with first
The output head anode of power converter 12, negative pole of output end connection.The output head anode of energy storage device 11, negative pole of output end can be with
It is connect respectively with input anode, the input cathode of the first power converter 12.The output head anode of energy storage device 11, output
End cathode can be connect respectively with input anode, the input cathode of the second power converter 13.Since energy storage device 11 can
To pass through 13 powering load of the first power converter 12 or the second power converter, that is to say, that energy storage device 12 only needs
Carry out the conversion of power can powering load, energy conversion efficiency is high, and kwh loss is lower.
In the light storage electricity generation system of the utility model embodiment, due to the input, output end of the first power converter 12
It is connect respectively with energy storage device 11, solar components 10, in practical applications, the first power converter 12 can make solar energy
Component 10 charges to energy storage device 11 with maximum output power, to realize the pressure point of maximum efficiency of the light storage electricity generation system
Tracking, that is to say, that solar components 11 only need power conversion of progress that pressure point of maximum efficiency tracking, energy conversion can be completed
Rate is high, and kwh loss is lower.
Specifically, the first power converter 12 may include: the first controller and connect with first controller
First voltage detection circuit, second voltage detection circuit, first voltage conversion circuit；Wherein, the first voltage detection circuit
It is connect with the input terminal of the first power converter 12, can be used for detecting the voltage of 12 input terminal of the first power converter；It is described
Second voltage detection circuit is connect with the output end of the first power converter 12, and it is defeated to can be used for detecting the first power converter 12
The voltage of outlet；The first voltage conversion circuit can be used for exporting the output voltage of the first power converter.
Specifically, the second power converter 13 may include: second controller and connect with the second controller
Tertiary voltage detection circuit, the 4th voltage detecting circuit, second voltage conversion circuit；Wherein, the tertiary voltage detection circuit
It is connect with the input terminal of the second power converter 13, can be used for detecting the voltage of 13 input terminal of the second power converter；It is described
4th voltage detecting circuit is connect with the output end of the second power converter 13, and it is defeated to can be used for detecting the second power converter 13
The voltage of outlet；The second voltage conversion circuit can be used for exporting the output voltage of the second power converter.
Optionally, energy storage device 11 can be single energy-storage battery, alternatively, being made of multiple energy-storage battery series/parallels
Energy-storage battery group.In practical applications, when energy storage device 11 is single battery pack, the structure of energy storage device 11 can be compared with
To be simple, weight is lighter, in turn, the light storage electricity generation system can be made easy to carry.When energy storage device 11 is by multiple storages
Can battery strings/compose in parallel energy-storage battery group when, energy storage device 11 can store more electricity, in this manner it is possible into one
Step improves the power supply continuity of the light storage electricity generation system.
In a kind of alternative embodiment of the utility model, solar components 10 can store up electrification component, tool for flexible light
Body, the flexible light storage electrification component may include flexible thin-film solar cell piece, wherein the flexible thin-film solar
Cell piece can be made of copper indium gallium selenium solar cell.Since flexible light storage electrification component has light weight, bendable tortuous
Folded advantage, in practical applications, when the solar components 10 of light storage electricity generation system are that flexible light stores up electrification component, no
The lighter weight of the luminous power generating system can only be made, it is easy to carry, even, solar components 10 can also be carried out rich
Rich shape-designing, to increase the overall aesthetics of the light storage electricity generation system.
In practical applications, light storage electricity generation system described in the utility model can realize maximum effect by simple structure
The tracking of rate point and the requirement for meeting load provide the light storage electricity generation system individually below and realize maximum under three kinds of operating modes
Efficient point tracking and the specific example for meeting load.
The first operating mode: the generated output Ppv of solar components 10 is greater than bearing power Pload.
In the first operational mode, the first voltage detection circuit connecting in first voltage converter 12 with input terminal can
To detect the energy storage device voltage of energy storage device 11, and determine according to the energy storage device voltage maximum work of solar components 10
Rate point voltage Vmpp, first conversion circuit can make the output voltage of the first power converter 12 be Vmpp, so that too
Positive energy component 10 charges to energy storage device 11 with maximum output power, to realize the maximum effect of the light storage electricity generation system
The tracking of rate point.
Simultaneously as the output head anode of the negative pole of output end of the first power converter 12 and the second power converter 13 connects
It connects, therefore, the 4th voltage detecting circuit connecting in the second power converter 13 with output end, which can detecte to the first power, to be turned
The output voltage of parallel operation 12 is Vmpp, and second conversion circuit can make the output voltage of the second power converter 13 are as follows:
The total output voltage Vo-Vmpp of system, so that total output voltage Vo of light storage electricity generation system meets load requirement.First
Under kind operating mode, the additional energy (Ppv-Pload) that solar components 11 generate can be stored up by the first power converter 11
There are in energy storage device 11.
Second of operating mode: the generated output Ppv of solar components 10 is equal to bearing power Pload.
In a second mode of operation, the first voltage detection circuit connecting in first voltage converter 12 with input terminal can
To detect the energy storage device voltage of energy storage device 11, and determine according to the energy storage device voltage maximum work of solar components 10
Rate point voltage Vmpp, first conversion circuit can make the output voltage of the first power converter 12 be Vmpp, so that too
Positive energy component 10 charges to energy storage device 11 with maximum output power, to realize the maximum effect of the light storage electricity generation system
The tracking of rate point.
Simultaneously as the output head anode of the negative pole of output end of the first power converter 12 and the second power converter 13 connects
It connects, therefore, the 4th voltage detecting circuit connecting in the second power converter 13 with output end, which can detecte to the first power, to be turned
The output voltage of parallel operation 12 is Vmpp, and second conversion circuit can make the output voltage of the second power converter 13 to be
Vo-Vmpp, so that total output voltage Vo of light storage electricity generation system meets load requirement.
The third operating mode: the generated output Ppv of solar components 10 is less than bearing power Pload.
In the third operational mode, the first voltage detection circuit connecting in first voltage converter 12 with input terminal can
To detect the energy storage device voltage of energy storage device 11, and determine according to the energy storage device voltage maximum work of solar components 10
Rate point voltage Vmpp, first conversion circuit can make the output voltage of the first power converter 12 be Vmpp, so that too
Positive energy component 10 charges to energy storage device 11 with maximum output power, to realize the maximum effect of the light storage electricity generation system
The tracking of rate point.
Simultaneously as the output head anode of the negative pole of output end of the first power converter 12 and the second power converter 13 connects
It connects, therefore, the 4th voltage detecting circuit connecting in the second power converter 13 with output end, which can detecte to the first power, to be turned
The output voltage of parallel operation 12 is Vmpp, and second conversion circuit can make the output voltage of the second power converter 13 to be
Vo-Vmpp, so that total output voltage Vo of light storage electricity generation system meets load requirement.In the third operational mode,
The part (Pload-Ppv) that solar components generated output is not able to satisfy bearing power is turned by energy storage device 11 by the second power
Parallel operation 11 provides.
Pressure point of maximum efficiency tracking is realized by light described under above-mentioned three kinds of operating modes storage electricity generation system and meets the tool of load
It is found that in the storage electricity generation system of light described in the utility model embodiment, solar components 10 only need to carry out a power body example
Pressure point of maximum efficiency tracking can be completed in conversion, and energy conversion rate is high, and kwh loss is lower；Moreover, energy storage device 11 and solar energy
Component 10 only need to carry out the conversion of power can powering load, energy conversion efficiency is high, and kwh loss is lower.
In the utility model embodiment, when the first power converter 12 and/or the second power converter 13 break down,
The light storage electricity generation system still can be with powering load.The work of the light storage electricity generation system under three kinds of fault modes presented below
Make example.
The first fault mode: the first power converter 12 breaks down, and the second power converter 13 is normal.
Under the first fault mode, energy storage device 11 can pass through 13 powering load of the second power converter.
Second of fault mode: the second power converter 13 breaks down, and the first power converter 12 is normal.
Under second of fault mode, in the case where no illumination, energy storage device 11 can be turned by the first power
12 powering load of parallel operation；In the case where there is illumination, the output voltage of the first power converter 12 can be Vmpp, so that too
Positive energy component 10 charges to energy storage device 11 with maximum output power, to realize the maximum effect of the light storage electricity generation system
The tracking of rate point, simultaneously as the output voltage of the first converter 12 is Vmpp, the light storage electricity generation system can be always to export electricity
Press Vmpp powering load.
The third fault mode: the first power converter 12 and the second power converter all break down.
Under the third fault mode, due to the first power converter 12 and the second power converter 13 all break down it is short
Road, solar components 10 can directly be connected with load, provide emergency service for load.
By the Working Examples of light described under above-mentioned three kinds of fault modes storage electricity generation system it is found that the utility model embodiment institute
In the light storage electricity generation system stated, when the first power converter 12 and/or the second power converter 13 break down, the light storage
Electricity generation system still can with powering load, the storage Generation System Reliability of light described in the utility model embodiment and redundancy compared with
It is high.
To sum up, the storage of light described in the utility model embodiment electricity generation system has at least the following advantages:
Firstly, the utility model embodiment light storage electricity generation system in, due to the input terminal of first power converter,
Output end is connect with the energy storage device, the solar components respectively, and in practical applications, first power converter can
So that the solar components charge to the energy storage device with maximum output power, to realize the smooth Chu Fa electricity
The pressure point of maximum efficiency of system tracks, that is to say, that the solar components only need power conversion of progress that maximum can be completed
Efficient point tracking, energy conversion rate is high, and kwh loss is lower.
Moreover, in the light storage electricity generation system of the utility model embodiment, due to the output end of first power converter
Cathode is connect with the output head anode of second power converter, and the output head anode of first power converter can be used
It is connect in the anode with load, the cathode of second power converter can be used for connecting with the cathode of the load.In reality
In the application of border, described the can be cooperated with power converter and second power converter, powering load.Namely
Say, the energy storage device and the solar components only need to carry out a power conversion can powering load, energy conversion effect
Rate is high, and kwh loss is lower.
In addition, the solar components are connect with the output end of first power converter, and first power turns
The negative pole of output end of parallel operation is connect with the output head anode of second power converter, in practical applications, described first
When power converter and/or the second power converter break down, the light storage electricity generation system still can be with powering load.This
Light described in utility model embodiment stores up Generation System Reliability and redundancy is higher.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
Above to a kind of light storage electricity generation system provided by the utility model, it is described in detail, it is used herein
Specific case is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to manage
Solve the method and its core concept of the utility model；At the same time, for those skilled in the art, according to the utility model
Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as
Limitations of the present invention.
Claims (9)
1. a kind of light stores up electricity generation system characterized by comprising solar components, energy storage device, the first power converter and
Second power converter；Wherein
The energy storage device is connect with the input terminal of first power converter, second power converter respectively；
The solar components are connect with the output end of first power converter；
The negative pole of output end of first power converter is connect with the output head anode of second power converter；
The output head anode of first power converter is used to connect with the anode of load, and second power converter is born
Pole with the cathode of the load for connecting.
2. light according to claim 1 stores up electricity generation system, which is characterized in that first power converter and described second
In power converter, at least one power converter is isolated form power converter.
3. light according to claim 1 stores up electricity generation system, which is characterized in that the output head anode of the solar components,
Negative pole of output end is connect with output head anode, the negative pole of output end of first power converter respectively.
4. light according to claim 1 stores up electricity generation system, which is characterized in that the output head anode of the energy storage device, defeated
Outlet cathode is connect with input anode, the input cathode of first power converter respectively.
5. light according to claim 1 stores up electricity generation system, which is characterized in that the output head anode of the energy storage device, defeated
Outlet cathode is connect with input anode, the input cathode of second power converter respectively.
6. light according to claim 1 stores up electricity generation system, which is characterized in that the energy storage device is single energy storage electricity
Pond, alternatively, the energy-storage battery group being made of multiple energy-storage battery series/parallels.
7. light according to claim 1 stores up electricity generation system, which is characterized in that first power converter includes: first
Controller and the first voltage detection circuit connecting with first controller, second voltage detection circuit, first voltage turn
Change circuit；Wherein
The first voltage detection circuit is connect with the input terminal of first power converter；
The second voltage detection circuit is connect with the output end of first power converter.
8. light according to claim 1 stores up electricity generation system, which is characterized in that second power converter includes: second
Controller and the tertiary voltage detection circuit connecting with the second controller, the 4th voltage detecting circuit, second voltage turn
Change circuit；Wherein
The tertiary voltage detection circuit is connect with the input terminal of second power converter；
4th voltage detecting circuit is connect with the output end of second power converter.
9. light according to claim 1 stores up electricity generation system, which is characterized in that the solar components component is the flexible sun
It can component.
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