CN205610235U - Novel inverter that adaptation smart power grids required - Google Patents
Novel inverter that adaptation smart power grids required Download PDFInfo
- Publication number
- CN205610235U CN205610235U CN201620416414.7U CN201620416414U CN205610235U CN 205610235 U CN205610235 U CN 205610235U CN 201620416414 U CN201620416414 U CN 201620416414U CN 205610235 U CN205610235 U CN 205610235U
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- China
- Prior art keywords
- micro
- capacitance sensor
- load
- electric wire
- wire netting
- 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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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/14—District level solutions, i.e. local energy networks
Abstract
The utility model discloses a novel inverter that adaptation smart power grids required, including the electrical load, the device adoption four -bridge -arm current controled voltage source type dc -to -ac converter and distributed electrical cell, distributing type electrical cell inserts little electric wire netting common connecting point through coupling inductance, isolation transformer in proper order to change over to little electric wire netting over to through little electric wire netting common connecting point, little electric wire netting common connecting point inserts low voltage network through joining in marriage net isolation transformer, little electric wire netting passes through singlechip controller and connects four -bridge -arm current controled voltage source type dc -to -ac converter, the electrical load passes through the load transformer and inserts little electric wire netting common connecting point and singlechip controller respectively, the former limit neutral point of load transformer links to each other with isolation transformer's vice limit neutral point, avoids or reduces the hardware input to improving little power quality of a power grid device, reduces to be equipped with the bulk volume, makes the grid -connected inverter maximizing the benefits.
Description
Technical field
This utility model relates to inversion transformation technique field, a kind of adapts to the novel of intelligent grid requirement
Inverter.
Background technology
The pollution constantly consumed along with fossil energy and cause in its consumption process is day by day serious,
Under the dual-pressure of energy demand and environmental conservation, wind energy, solar energy, tide energy distributed generate electricity
The application of unit (distributedgeneration, DG) is increasingly subject to the weight of countries in the world with development
Depending on, the correlation technique of distributed power generation have also been obtained constantly development and perfection.
Because of features such as the inherent intermittence of the DG such as wind energy, solar energy, randomness, it is different from synchronization
Electromotor, the access of DG would generally be proposed to limit and insulation request by electrical network.At present, micro-capacitance sensor technology
Exist as the major way of a kind of DG of solution networking.But, contain in micro-capacitance sensor is a large amount of
Power electronic equipment, non-linear, uneven present in micro-capacitance sensor localised load in addition and nothing
Merit characteristic, this all can deteriorate micro-capacitance sensor points of common connection (pointofcommoncoupling, PCC) place
The quality of power supply.Fix price according to quality at electric energy and become today of Power Market Development trend, micro-capacitance sensor PCC
The quality of the quality of power supply at Dian, will be directly connected to the economic benefit of micro-capacitance sensor.
Utility model content
For problem above, this utility model provides and accesses distribution system for by isolating transformer
The multi-functional combining inverter of new distribution type generator unit of micro-capacitance sensor, can make Multifunctional inverter same
Time or realize respectively by distributed generation unit to the function of micro-capacitance sensor injecting power and public at micro-capacitance sensor
Harmonic current managing, load reactive-load compensation, load three-phase imbalance and neutral conductor electricity is carried out at junction point
The function of the shunt active power filters such as stream compensation, thus avoid or reduce improving micro-capacitance sensor electric energy matter
The hardware of amount device puts into, and reduces standby cumulative volume, makes combining inverter maximizing the benefits, can be effective
Solve the problem in background technology.
For achieving the above object, this utility model provides following technical scheme: one adapts to intelligent grid
The novel inverter required, including electrical load, this device uses four bridge legs current-controlled voltage source
Type inverter and distributed generation unit, the most coupled inductance of described distributed generation unit, isolation
Transformator accesses micro-capacitance sensor points of common connection, and proceeds to micro-capacitance sensor by micro-capacitance sensor points of common connection, institute
Stating micro-capacitance sensor points of common connection and access low-voltage network by distribution isolating transformer, described micro-capacitance sensor leads to
Crossing singlechip controller and connect four bridge legs current-controlled voltage source type inverter, described electrical load is passed through
Load transformer is respectively connected to micro-capacitance sensor points of common connection and singlechip controller, described load transformer
Former limit neutral point be connected with the secondary neutral point of isolating transformer.
As a kind of preferably technical scheme of this utility model, described electrical load by nonlinear load and
Linear asymmetrical three-phase load composition.
As a kind of preferably technical scheme of this utility model, described low-voltage network is three-phase three-wire system
Low-voltage network or three-phase four-wire low-voltage power distribution network.
As this utility model a kind of preferably technical scheme, described distributed generation unit built-in power
Converting means.
Compared with prior art, the beneficial effects of the utility model are: design is a kind of for by isolation
Transformator accesses the multi-functional combining inverter of new distribution type generator unit of distribution system micro-capacitance sensor, can
So that Multifunctional inverter realizes by distributed generation unit at the same time or separately to micro-capacitance sensor injecting power
Function and carry out at micro-capacitance sensor points of common connection harmonic current managing, load reactive-load compensation, load three
The function of the shunt active power filter such as imbalance and neutral current compensation mutually, thus avoid or reduce
The hardware improving micro-capacitance sensor quality of power supply device is put into, reduces standby cumulative volume, make combining inverter imitate
Benefit maximizes.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
In figure: 1-electrical load；2-four bridge legs current-controlled voltage source type inverter；Distributed of 3-
Electric unit；4-coupling inductance；5-isolating transformer；6-micro-capacitance sensor points of common connection；7-micro-capacitance sensor；
8-distribution isolating transformer；9-low-voltage network；10-singlechip controller；11-load transformer.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the skill in this utility model embodiment
Art scheme is clearly and completely described, it is clear that described embodiment is only this utility model
A part of embodiment rather than whole embodiments.Based on the embodiment in this utility model, ability
The every other embodiment that territory those of ordinary skill is obtained under not making creative work premise,
Broadly fall into the scope of this utility model protection.
Embodiment:
Refer to Fig. 1, this utility model provides a kind of technical scheme: a kind of adapt to intelligent grid requirement
Novel inverter, including electrical load (1), described electrical load (1) is by nonlinear load and line
Property asymmetrical three-phase load composition, this device use four bridge legs current-controlled voltage source type inverter (2)
With distributed generation unit (3), described distributed generation unit (3) built-in power converting means, institute
State distributed generation unit (3) the most coupled inductance (4), isolating transformer (5) accesses micro-electricity
Net points of common connection (6), wherein coupling inductance acts primarily as loop current suppression and certain filter action, and
Micro-capacitance sensor (7), described micro-capacitance sensor points of common connection (6) is proceeded to by micro-capacitance sensor points of common connection (6)
Low-voltage network (9) is accessed, it is therefore an objective to for reducing harmonic wave and spuious by distribution isolating transformer (8)
The electric current that magnetic field the produces impact on distribution network electric energy quality, described low-voltage network (9) is three-phase three
Line low-voltage network or three-phase four-wire low-voltage power distribution network, described micro-capacitance sensor (7) passes through single-chip microcomputer control
Device processed (10) connects four bridge legs current-controlled voltage source type inverter (2), described electrical load (1)
It is respectively connected to micro-capacitance sensor points of common connection (6) and singlechip controller (10) by load transformer (11),
The former limit neutral point of described load transformer (11) is connected with the secondary neutral point of isolating transformer (5),
Purpose is in order to by the control realization compensation to load neutral line current.
This device is a kind of for being accessed novel point of distribution system micro-capacitance sensor 7 by isolating transformer 5
The multi-functional combining inverter of cloth generator unit, can make Multifunctional inverter realize at the same time or separately by
Distributed generation unit 3 to the function of micro-capacitance sensor 7 injecting power and enters at micro-capacitance sensor points of common connection
Row harmonic current managing, load reactive-load compensation, load three-phase imbalance and neutral current compensation etc. are also
The function of connection type active filter, thus avoid or reduce improving the hard of micro-capacitance sensor quality of power supply device
Part puts into, and reduces standby cumulative volume, makes combining inverter maximizing the benefits.
The foregoing is only preferred embodiment of the present utility model, not new in order to limit this practicality
Type, all any amendment, equivalent and improvement made within spirit of the present utility model and principle
Deng, within should be included in protection domain of the present utility model.
Claims (4)
1. adapting to a novel inverter for intelligent grid requirement, including electrical load (1), it is special
Levying and be, this device uses four bridge legs current-controlled voltage source type inverter (2) and distributed power generation list
Unit (3), described distributed generation unit (3) the most coupled inductance (4), isolating transformer (5)
Access micro-capacitance sensor points of common connection (6), and proceed to micro-capacitance sensor (7) by micro-capacitance sensor points of common connection (6),
Described micro-capacitance sensor points of common connection (6) accesses low-voltage network (9) by distribution isolating transformer (8),
It is inverse that described micro-capacitance sensor (7) connects four bridge legs current-controlled voltage source type by singlechip controller (10)
Becoming device (2), it is public that described electrical load (1) is respectively connected to micro-capacitance sensor by load transformer (11)
Junction point (6) and singlechip controller (10), the former limit neutral point of described load transformer (11)
It is connected with the secondary neutral point of isolating transformer (5).
A kind of novel inverter adapting to intelligent grid requirement the most according to claim 1, its
It is characterised by: described electrical load (1) is loaded by nonlinear load and linear asymmetrical three-phase and forms.
A kind of novel inverter adapting to intelligent grid requirement the most according to claim 1, its
Be characterised by: described low-voltage network (9) be three-phase three-wire system low-voltage network or three-phase four-wire system low
It is press-fitted electrical network.
A kind of novel inverter adapting to intelligent grid requirement the most according to claim 1, its
It is characterised by: described distributed generation unit (3) built-in power converting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416414.7U CN205610235U (en) | 2016-05-10 | 2016-05-10 | Novel inverter that adaptation smart power grids required |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416414.7U CN205610235U (en) | 2016-05-10 | 2016-05-10 | Novel inverter that adaptation smart power grids required |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205610235U true CN205610235U (en) | 2016-09-28 |
Family
ID=56965766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620416414.7U Expired - Fee Related CN205610235U (en) | 2016-05-10 | 2016-05-10 | Novel inverter that adaptation smart power grids required |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205610235U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111277003A (en) * | 2020-03-30 | 2020-06-12 | 贵州长征输配电电气有限公司 | Micro-grid power distribution system |
-
2016
- 2016-05-10 CN CN201620416414.7U patent/CN205610235U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111277003A (en) * | 2020-03-30 | 2020-06-12 | 贵州长征输配电电气有限公司 | Micro-grid power distribution system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20180510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |