CN207868804U - It is a kind of having maximum power control function light storage fill integrated controller - Google Patents
It is a kind of having maximum power control function light storage fill integrated controller Download PDFInfo
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- CN207868804U CN207868804U CN201820104015.6U CN201820104015U CN207868804U CN 207868804 U CN207868804 U CN 207868804U CN 201820104015 U CN201820104015 U CN 201820104015U CN 207868804 U CN207868804 U CN 207868804U
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- bus
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- power control
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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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- 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 light storages having maximum power control function to fill integrated controller, including：Photovoltaic module converts solar energy into electrical energy；Maximum power control connect with photovoltaic module, No.1 DC/DC converters, makes the working point control of photovoltaic cell near maximum power point；No.1 DC/DC converters, connect with DC bus, and direct current is converted into matching with DC bus and stable DC；DC bus；Accumulator is connect with DC bus, for storing electricity；No. two DC/DC converters, connect with DC bus, convert electrical energy into the direct current used for gird-connected inverter；Gird-connected inverter is connect with power grid, and the direct current on DC bus is converted to alternating current；Power grid；No.1 loads；No. three DC/DC converters；No. two loads, to consume electric energy.The controller realizes light storage and fills integration, realizes maximum power control, can maximally utilize photovoltaic module electricity, convenient effective.
Description
Technical field
The utility model is related to solar energy generation technology field, more particularly to a kind of light having maximum power control function
Integrated controller is filled in storage.
Background technology
It is well known that when photovoltaic system works, solar cell has unique at certain temperature and intensity of sunshine
Maximum power point can export the maximum power under Current Temperatures and sunshine condition when solar cell is operated in this.But due to
The output characteristics of solar cell is influenced by factors such as load condition, sunshine amount, environment temperatures, the voltage of solar cell array and
Electric current changes a lot, and to keep output power unstable, i.e., maximum power point moment is changing, and leads to photovoltaic system
Efficiency reduces.In addition, since the output characteristics of solar cell is complicated non-linear form, it is difficult to determine its mathematical model, institute
Maximum power can not be sought with analytic method.Therefore the transfer efficiency for how further increasing solar cell, makes full use of photovoltaic
The energy that array is converted is always the important directions of solar photovoltaic generation system research.
Utility model content
The purpose of this utility model aims to solve at least one of described technological deficiency.
For this purpose, the purpose of this utility model is that proposing that integrated control is filled in a kind of light storage having maximum power control function
Device processed.
To achieve the goals above, the embodiments of the present invention propose a kind of light storage having maximum power control function
Integrated controller is filled, including：Photovoltaic module, the photovoltaic module are connect with the maximum power control, the photovoltaic module
It converts solar energy into electrical energy, electricity supplying and using system uses；Maximum power control, the maximum power control and the photovoltaic group
Part, the connection of No.1 DC/DC converters, the maximum power control enable battery various by controlling solar cell terminal voltage
Intelligently Maximum Power Output under different sunshine and temperature environment, constantly obtains maximum power output, makes photovoltaic cell
Operating point controls near maximum power point always, improves the whole efficiency of system；No.1 DC/DC converters, the No.1 DC/
DC converters are connect with DC bus, and the No.1 DC/DC converters will be turned by the direct current after the maximum power control
It changes into and matches with the DC bus and stable DC；DC bus, the DC bus are carried to all power loads
For required electric energy；Accumulator, the accumulator are connect with the DC bus, extra for being sent out the photovoltaic module
Direct current stores, and is used for load；No. two DC/DC converters, No. two DC/DC converters connect with the DC bus
It connects, the electric energy on the DC bus is converted to the direct current used for gird-connected inverter by No. two DC/DC converters；
Gird-connected inverter, the gird-connected inverter are connect with power grid, and the gird-connected inverter turns the direct current on the DC bus
It is changed to alternating current that can be grid-connected, carry out feedback electric energy can be carried out to the power grid；Power grid, the power grid and the gird-connected inverter
Connection；No.1 loads, and No.1 load is connect with the DC bus, the No.1 load can directly with the DC bus
Voltage matches, the No.1 load directly consumption DC bus side electric energy；No. three DC/DC converters, No. three DC/DC turn
Parallel operation is connect with the DC bus, and No. three DC/DC converters are converted to the voltage of the DC bus for described
No. two load the voltage to match；No. two loads, No. two loads are connect with No. three DC/DC converters, to consume
Pass through the transformed electric energy of No. three DC/DC converters.
In one embodiment of the utility model, the gird-connected inverter is two-way gird-connected inverter, can be by direct current mother
Line side DC inverter is delivered to power grid at alternating current, also can be direct current by grid side AC rectification.
Integrated controller is filled according to a kind of light storage having maximum power control function of the utility model embodiment, this
The advantageous effect of utility model：When photovoltaic system works, photovoltaic array is influenced by changing the size of the resistance loaded
Output power makes the operating point of photovoltaic array be constantly near maximum power point, improves the different institutes by illumination, load
The problem of bringing the reduction of photovoltaic module transfer efficiency of efficiency, therefore maximum power control further increases turning for solar cell
Efficiency is changed, the energy for making full use of photovoltaic array to be converted.Meanwhile the controller realizes light storage and fills integration, it can be by light
Volt component electricity maximally utilize, not only can directly for load use, but also can by it is extra electricity storage after for load
It uses, it is convenient effective.
The additional aspect of the utility model and advantage will be set forth in part in the description, partly will be from following description
In become apparent, or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will become from the description in conjunction with attached drawing to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is to fill overall-in-one control schema according to a kind of light storage having maximum power control function of the utility model embodiment
The structural schematic diagram of device；
Fig. 2 is to fill overall-in-one control schema according to a kind of light storage having maximum power control function of the utility model embodiment
The workflow schematic diagram of device；
In figure：1, photovoltaic module, 2, maximum power control, 3, No.1 DC/DC converters, 4, DC bus；5, accumulator,
6, No. two DC/DC converters, 7, gird-connected inverter, 8, No.1 load, 9, No. three DC/DC converters, 10, No. two loads, 11,
Power grid
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
To the same or similar element of same or similar symbolic indication eventually or the element with same or similar function.Below by
The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and should not be understood as new to this practicality
The limitation of type.
Integrated controller is filled in a kind of light storage having maximum power control function that Fig. 1 provides the utility model embodiment
Structural schematic diagram, including：Photovoltaic module 1, photovoltaic module 1 are connect with maximum power control 2, and photovoltaic module 1 turns solar energy
Electric energy is turned to, electricity supplying and using system uses；Maximum power control 2, maximum power control 2 are converted with photovoltaic module 1, No.1 DC/DC
Device 3 connects, and maximum power control 2 enables battery in a variety of different sunshines and temperature ring by controlling solar cell terminal voltage
Intelligently Maximum Power Output under border, constantly obtains maximum power output, the operating point of photovoltaic cell is made to control always most
Near high-power point, the whole efficiency of system is improved；No.1 DC/DC converters 3, No.1 DC/DC converters 3 and DC bus 4
Connection, No.1 DC/DC converters 3 will be converted into matching with DC bus 4 by the direct current after maximum power control 2 and
Stable DC；DC bus 4, DC bus 4 provide required electric energy to all power loads；Accumulator 5, accumulator 5 with
DC bus 4 connects, and the extra direct current for being sent out photovoltaic module 1 stores, and is used for load；No. two DC/DC
Converter 6, No. two DC/DC converters 6 are connect with DC bus 4, and No. two DC/DC converters 6 turn the electric energy on DC bus 4
It is changed to the direct current used for gird-connected inverter 7；Gird-connected inverter 7, gird-connected inverter 7 are connect with power grid 11, parallel network reverse
Device 11 by the direct current on DC bus 4 be converted to can be grid-connected alternating current, can to power grid 11 carry out feedback electric energy；Power grid 11,
Power grid 11 is connect with gird-connected inverter 7；No.1 load 8, No.1 load 8 are connect with DC bus 4, No.1 load 8 can directly with
4 voltage of DC bus matches, and No.1 load 8 directly consumes 4 side electric energy of DC bus；No. three DC/DC converters 9, No. three DC/
DC converters 9 are connect with DC bus 4, and the voltage of DC bus 4 is converted to and is loaded for No. two by No. three DC/DC converters 9
10 voltages to match；No. two loads 10, No. two loads 10 are connect with No. three DC/DC converters 9, to consume by No. three
9 transformed electric energy of DC/DC converters.
In one embodiment of the utility model, the gird-connected inverter is two-way gird-connected inverter, can be by direct current mother
Line side DC inverter is delivered to power grid at alternating current, also can be direct current by grid side AC rectification.
Integrated controller is filled in a kind of light storage having maximum power control function that Fig. 2 provides the utility model embodiment
Workflow schematic diagram.It is as follows：
Step S1, photovoltaic module convert solar energy into electrical energy；
Step S2 starts maximum power control, to the maximum power of solar cell module into line trace；
Step S3, No. three DC/DC converters work, No. three DC/DC converters are converted to the output voltage of photovoltaic module
The voltage that can be matched with DC bus；
Step S4, the electricity on DC bus is loaded for No.1 to be used；
It is steps performed S5 when photovoltaic module electricity has extra, by electricity storage extra on DC bus to electric power storage
Chi Zhong；
When photovoltaic module electricity cannot meet load requirement, steps performed S6, accumulator discharges, after electric discharge
It is used for load.
When grid side not enough power supply, steps performed S7-S9；
Step S7, DC bus transport to fax on No. two DC/DC converters；
The voltage that the voltage of DC bus side is converted into matching with gird-connected inverter by step S8, DC/DC converter；
Step S9, by alternating current transmission to power grid after gird-connected inverter inversion
When DC bus side electricity scarcity, steps performed S12-S14；
Step S12, grid side is by charge transport to gird-connected inverter；
Step S13, gird-connected inverter is by AC rectification on DC power transmission to No. two DC/DC converters
Step S14, what the electricity of gird-connected inverter side was converted into matching with DC bus side by No. two DC/DC converters
Electricity is passed to DC bus side, is used for load；
Step S10, DC bus side electric energy are passed to No. three DC/DC converters；
DC bus side voltage is converted into loading the voltage to match with No. two by step S11, DC/DC converter, for two
Number load use
Integrated controller is filled according to a kind of light storage having maximum power control function of the utility model embodiment, this
The advantageous effect of utility model：When photovoltaic system works, photovoltaic array is influenced by changing the size of the resistance loaded
Output power makes the operating point of photovoltaic array be constantly near maximum power point, improves the different institutes by illumination, load
The problem of bringing the reduction of photovoltaic module transfer efficiency of efficiency, therefore maximum power control further increases turning for solar cell
Efficiency is changed, the energy for making full use of photovoltaic array to be converted.Meanwhile the controller realizes light storage and fills integration, it can be by light
Volt component electricity maximally utilize, not only can directly for load use, but also can by it is extra electricity storage after for load
It uses, it is convenient effective.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specific example ",
Or the description of " some examples " etc. means to combine specific features, structure, material or the feature packet for changing embodiment or example description
In at least one embodiment or example contained in the utility model.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in can be combined in any suitable manner.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are not departing from the utility model
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification.The scope of the utility model is by appended claims and its equivalent limits.
Claims (2)
1. integrated controller is filled in a kind of light storage having maximum power control function, which is characterized in that including：
Photovoltaic module, the photovoltaic module are connect with maximum power control, and the photovoltaic module converts solar energy into electrical energy, and are supplied
Electricity system uses；
Maximum power control, the maximum power control are connect with the photovoltaic module, No.1 DC/DC converters, the maximum
Power control keeps battery intelligently defeated under a variety of different sunshines and temperature environment by controlling solar cell terminal voltage
Go out maximum power, constantly obtain maximum power output, so that the operating point of photovoltaic cell is controlled near maximum power point always, carry
The whole efficiency of high system；
No.1 DC/DC converters, the No.1 DC/DC converters are connect with DC bus, and the No.1 DC/DC converters will lead to
The direct current crossed after the maximum power control is converted into matching with the DC bus and stable DC；
DC bus, the DC bus provide required electric energy to all power loads；
Accumulator, the accumulator are connect with the DC bus, the extra direct current for being sent out the photovoltaic module
It stores, is used for load；
No. two DC/DC converters, No. two DC/DC converters are connect with the DC bus, No. two DC/DC converters
Electric energy on the DC bus is converted to the direct current used for gird-connected inverter；
Gird-connected inverter, the gird-connected inverter are connect with power grid, and the gird-connected inverter is by the direct current on the DC bus
Electricity is converted to alternating current that can be grid-connected, and carry out feedback electric energy can be carried out to the power grid；
Power grid, the power grid are connect with the gird-connected inverter；
No.1 loads, and No.1 load is connect with the DC bus, the No.1 load can directly with the DC bus
Voltage matches, the No.1 load directly consumption DC bus side electric energy；
No. three DC/DC converters, No. three DC/DC converters are connect with the DC bus, No. three DC/DC converters
The voltage of the DC bus is converted to and loads the voltage to match for described No. two；
No. two loads, No. two loads are connect with No. three DC/DC converters, to consume through No. three DC/DC
The transformed electric energy of converter.
2. integrated controller is filled in a kind of light storage having maximum power control function as described in claim 1, it is characterised in that
The gird-connected inverter is two-way gird-connected inverter, can DC bus side DC inverter be delivered to power grid at alternating current,
Can be direct current by grid side AC rectification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820104015.6U CN207868804U (en) | 2018-01-22 | 2018-01-22 | It is a kind of having maximum power control function light storage fill integrated controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820104015.6U CN207868804U (en) | 2018-01-22 | 2018-01-22 | It is a kind of having maximum power control function light storage fill integrated controller |
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| CN207868804U true CN207868804U (en) | 2018-09-14 |
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| CN201820104015.6U Expired - Fee Related CN207868804U (en) | 2018-01-22 | 2018-01-22 | It is a kind of having maximum power control function light storage fill integrated controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211307A1 (en) * | 2019-04-16 | 2020-10-22 | 清华大学 | Building full-direct-current power supply and electricity storage system and control method |
-
2018
- 2018-01-22 CN CN201820104015.6U patent/CN207868804U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211307A1 (en) * | 2019-04-16 | 2020-10-22 | 清华大学 | Building full-direct-current power supply and electricity storage system and control method |
| US11190013B2 (en) | 2019-04-16 | 2021-11-30 | Tsinghua University | System and control method of all-DC power supply and storage for building |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20190122 |