CN109586331A - A kind of accumulation energy type photovoltaic grid-connected generating control system - Google Patents
A kind of accumulation energy type photovoltaic grid-connected generating control system Download PDFInfo
- Publication number
- CN109586331A CN109586331A CN201710897000.XA CN201710897000A CN109586331A CN 109586331 A CN109586331 A CN 109586331A CN 201710897000 A CN201710897000 A CN 201710897000A CN 109586331 A CN109586331 A CN 109586331A
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- CN
- China
- Prior art keywords
- electrically connected
- control system
- boost converter
- generating control
- energy type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000009825 accumulation Methods 0.000 title claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- H02J3/385—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of accumulation energy type photovoltaic grid-connected generating control system, including photovoltaic array, boost converter, DC/AC, DC/DC, inductance filter, battery and three phase network, the photovoltaic array and boost converter are electrically connected；The boost converter and DC/AC are electrically connected；The DC/AC and inductance filter are electrically connected；The inductance filter and three phase network are electrically connected；The boost converter and DC/DC are electrically connected；The DC/DC and battery are electrically connected.The advantageous effect of the invention is the energy for being able to achieve grid-connected power and stabilizing control and capable of storing photovoltaic array sending in electric network fault, so that the utilization efficiency of luminous energy is high.
Description
Technical field
The invention belongs to technical field of photovoltaic power generation, and in particular to a kind of accumulation energy type photovoltaic grid-connected generating control system.
Background technique
Photovoltaic power generation is pollution-free, noiseless, operating cost is low, is ideal sustainable energy, good development prospect.According to pre-
Survey, be up to 13.5% to ratio of the year two thousand fifty solar energy in energy resource structure, be the following fossil energy main alternative energy source it
One.By the development of many years, photovoltaic power generation just gradually from past small-scale off-grid system, is sent out to large-scale grid connection power generation direction
Exhibition.Parallel network power generation technology based on maximal power tracing control and the control of various parallel network reverses has obtained extensive research.
Current photovoltaic grid-connected generating control system, can not achieve grid-connected power stabilize control and in electric network fault not
The utilization efficiency of energy and luminous energy that photovoltaic array sending can be stored is low.
Therefore, a kind of accumulation energy type photovoltaic grid-connected generating control system is invented to be very necessary.
Summary of the invention
The purpose of the present invention is to provide a kind of accumulation energy type photovoltaic grid-connected generating control systems, to solve above-mentioned background technique
It is middle to propose current photovoltaic grid-connected generating control system, it can not achieve grid-connected power and stabilize control and cannot in electric network fault
Store the low problem of the utilization efficiency of energy and luminous energy that photovoltaic array issues.
To achieve the above object, the invention provides the following technical scheme: a kind of accumulation energy type photovoltaic grid-connected generating control system,
Including photovoltaic array, boost converter, DC/AC, DC/DC, inductance filter, battery and three phase network, the photovoltaic array
It is electrically connected with boost converter；The boost converter and DC/AC are electrically connected；The DC/AC and inductance filter electricity
Property connection；The inductance filter and three phase network are electrically connected；The boost converter and DC/DC are electrically connected；It is described
DC/DC and battery are electrically connected.
Further, the DC/AC is the inverter that a kind of direct current is converted into exchange.
Further, the DC/DC using it is a kind of by fixed DC voltage conversion be the straight of variable DC voltage
Flow chopper.
Further, the filter circuit that the inductance filter is made of capacitor, inductance and resistance, and inductance filter can
It is effectively filtered out with the frequency other than the frequency point or the frequency point to specific frequency in power supply line, obtains the electricity of a specific frequency
Source signal, or eliminate the power supply signal after a specific frequency.
Technical effect and advantage of the invention: the accumulation energy type photovoltaic grid-connected generating control system is converted by setting Boost
Device is mainly used for realizing maximal power tracing, while the lower voltage of photovoltaic array is raised to higher voltage, makes for DC/AC
With improving the utilization rate of luminous energy；DC/AC is for realizing parallel network reverse;The energy storage being made of two-way DC/DC converter and battery
System stabilizes control for realizing grid-connected power and storage photovoltaic array issues when electric network fault energy, too high-light-energy
Utilization rate.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
In figure: photovoltaic array；Boost converter；DC/AC；DC/DC；Inductance filter；Battery；Three phase network.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of accumulation energy type photovoltaic grid-connected generating control system as shown in Figure 1, including photovoltaic array,
Boost converter, DC/AC, DC/DC, inductance filter, battery and three phase network, the photovoltaic array and boost converter
It is electrically connected；The boost converter and DC/AC are electrically connected；The DC/AC and inductance filter are electrically connected；The electricity
Feel filter and three phase network is electrically connected；The boost converter and DC/DC are electrically connected；The DC/DC and battery electricity
Property connection.
Further, the DC/AC is the inverter that a kind of direct current is converted into exchange.
Further, the DC/DC using it is a kind of by fixed DC voltage conversion be the straight of variable DC voltage
Flow chopper.
Further, the filter circuit that the inductance filter is made of capacitor, inductance and resistance, and inductance filter can
It is effectively filtered out with the frequency other than the frequency point or the frequency point to specific frequency in power supply line, obtains the electricity of a specific frequency
Source signal, or eliminate the power supply signal after a specific frequency.
Working principle: the accumulation energy type photovoltaic grid-connected generating control system is mainly used for realizing by the way that Boost is arranged
Maximal power tracing, while the lower voltage of photovoltaic array is raised to higher voltage, it is used for DC/AC, improves the benefit of luminous energy
With rate；DC/AC is for realizing parallel network reverse;The energy-storage system being made of two-way DC/DC converter and battery is for realizing simultaneously
The energy that storage photovoltaic array issues when net power stabilizes control and electric network fault, the too utilization rate of high-light-energy.
Using technical solution of the present invention or those skilled in the art under the inspiration of technical solution of the present invention, if
Similar technical solution is counted out, and reaches above-mentioned technical effect, is to fall into protection scope of the present invention.
Claims (4)
1. a kind of accumulation energy type photovoltaic grid-connected generating control system, including photovoltaic array, boost converter, DC/AC, DC/DC, electricity
Feel filter, battery and three phase network, it is characterised in that: the photovoltaic array and boost converter are electrically connected；It is described
Boost converter and DC/AC are electrically connected；The DC/AC and inductance filter are electrically connected；The inductance filter and three-phase
Power grid is electrically connected；The boost converter and DC/DC are electrically connected；The DC/DC and battery are electrically connected.
2. a kind of accumulation energy type photovoltaic grid-connected generating control system according to claim 1, it is characterised in that: the DC/AC
It is the inverter that a kind of direct current is converted into exchange.
3. a kind of accumulation energy type photovoltaic grid-connected generating control system according to claim 1, it is characterised in that: the DC/DC
Using it is a kind of by fixed DC voltage conversion be variable DC voltage dc chopper.
4. a kind of accumulation energy type photovoltaic grid-connected generating control system according to claim 1, it is characterised in that: the inductance filter
The filter circuit that wave device is made of capacitor, inductance and resistance, and inductance filter can be to the frequency of specific frequency in power supply line
Frequency other than point or the frequency point is effectively filtered out, and obtains the power supply signal of a specific frequency, or eliminate a specific frequency
Power supply signal after rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897000.XA CN109586331A (en) | 2017-09-28 | 2017-09-28 | A kind of accumulation energy type photovoltaic grid-connected generating control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897000.XA CN109586331A (en) | 2017-09-28 | 2017-09-28 | A kind of accumulation energy type photovoltaic grid-connected generating control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109586331A true CN109586331A (en) | 2019-04-05 |
Family
ID=65912892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710897000.XA Withdrawn CN109586331A (en) | 2017-09-28 | 2017-09-28 | A kind of accumulation energy type photovoltaic grid-connected generating control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109586331A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518866A (en) * | 2019-07-31 | 2019-11-29 | 成都三六八建设工程有限公司 | Photovoltaic power generation voltage stabilizing system |
| CN110571845A (en) * | 2019-07-31 | 2019-12-13 | 成都三六八建设工程有限公司 | Photovoltaic grid-connected power generation system |
-
2017
- 2017-09-28 CN CN201710897000.XA patent/CN109586331A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518866A (en) * | 2019-07-31 | 2019-11-29 | 成都三六八建设工程有限公司 | Photovoltaic power generation voltage stabilizing system |
| CN110571845A (en) * | 2019-07-31 | 2019-12-13 | 成都三六八建设工程有限公司 | Photovoltaic grid-connected power generation system |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190405 |
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| WW01 | Invention patent application withdrawn after publication |