CN106160022A - Direct current multivoltage electrical power trans mission/distribution system - Google Patents
Direct current multivoltage electrical power trans mission/distribution system Download PDFInfo
- Publication number
- CN106160022A CN106160022A CN201510146559.XA CN201510146559A CN106160022A CN 106160022 A CN106160022 A CN 106160022A CN 201510146559 A CN201510146559 A CN 201510146559A CN 106160022 A CN106160022 A CN 106160022A
- Authority
- CN
- China
- Prior art keywords
- bus
- converter
- high voltage
- voltage
- direct current
- 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.)
- Pending
Links
Abstract
The disclosure provides a kind of direct current multivoltage electrical power trans mission/distribution system.This direct current multivoltage electrical power trans mission/distribution system includes: a positive high voltage dc bus, a negative high voltage dc bus and a low-voltage direct bus；One two-way AC-dc converter；AC network is connected with described positive high voltage dc bus and described negative high voltage dc bus by described two-way exchange/DC converter；One first DC to DC converter or AC-dc converter；Generating set of renewable energy resource is connected with described positive high voltage dc bus by the first DC-DC or AC-dc converter；One first DC/AC inverter；Described positive high voltage dc bus is connected by described first DC/AC inverter and high power AC load with negative high voltage dc bus；At least one two-way DC to DC converter；Described low-voltage direct bus is connected by described at least one two-way DC to DC converter with described high voltage dc bus.The disclosure can reduce cost and the loss of electrical power trans mission/distribution system.
Description
Technical field
It relates to electrical power distribution technical field, it is specifically related to a kind of direct current multivoltage power transmission and distribution system
System.
Background technology
In traditional exchange electrical power trans mission/distribution system, much using direct current energy as the household electrical appliance of power supply
Being required for the input at electric energy and install ac/dc commutator, this not only adds cost also increases
Loss, thus economy that system run is greatly reduced.
And, in exchange electrical power trans mission/distribution system, it is desirable to all synchronous generators in system synchronize fortune
OK, to prevent electromotor out-of-step operation, thus it is flat to cause mechanical output and electromagnetic power to lose
Weighing apparatus relation.Therefore, between synchronous generator, the stable problem at merit angle can seriously restrict exchange power transmission and distribution system
The conveying capacity of system, and this restriction can be along with the contact between transmission distance and synchronous generator
The increase of reactance and more prominent, so that exchange power transmission and distribution ability is limited by bigger.By
This understands, will by frequency, phase place and voltage magnitude etc. in many ways during the work of conventional AC electrical power trans mission/distribution system
Face rings.
Additionally, using cable run is that the situation that electrical power trans mission/distribution system develops is become, but alternating current uses
A large amount of capacitance charging current can be produced during the bigger cable electricity distribution of electric capacity, line loss degree with
And the most therefore the transmission line capability of circuit can increase and reduce.Therefore, exchange power transmission and distribution also have power supply
Scope quality little, electric energy is low and the shortcoming such as the inconvenient interconnection of distributed power source.
Power system and technology of transmission of electricity are had higher requirement by society, the most further to
User provides high-quality electric energy to become the developing direction of power industry.Therefore, a kind of new power transmission and distribution
System urgently provides.
Summary of the invention
The purpose of the disclosure is to provide a kind of direct current multivoltage electrical power trans mission/distribution system, thus at least one
Determine in degree, to overcome the one or more problems caused due to restriction and the defect of correlation technique.
Other characteristics of the disclosure and advantage will be apparent from by detailed description below, or part
Ground acquistion by the practice of the disclosure.
One side according to the disclosure, it is provided that a kind of direct current multivoltage electrical power trans mission/distribution system, exchanges with one
Electrical network and generating set of renewable energy resource connect；It is characterized in that, direct current multivoltage electrical power trans mission/distribution system bag
Include:
One positive high voltage dc bus, a negative high voltage dc bus and a low-voltage direct bus；
One two-way AC-dc converter；Described AC network is by described two-way exchange DC converting
Device connects with described positive high voltage dc bus and described negative high voltage dc bus；
One first DC to DC converter or AC-dc converter；Described generating set of renewable energy resource
Female with described positive high voltage direct current by described first DC to DC converter or AC-dc converter
Line connects；
One first DC/AC inverter；Described positive high voltage dc bus leads to negative high voltage dc bus
Cross described first DC/AC inverter and high power AC load connects；
At least one two-way DC to DC converter；Described low-voltage direct bus is female with described HVDC
Line is connected by described at least one two-way DC to DC converter.
In a kind of exemplary embodiment of the disclosure, described generating set of renewable energy resource includes photovoltaic
TRT, fuel cell power generating system, wind power generation plant and/or high-tension battery group；
Described photovoltaic power generation apparatus, fuel cell power generating system and high-tension battery group are by described the
One DC to DC converter connects with described positive high voltage dc bus；
Described wind power generation plant is by described AC-dc converter and described positive high voltage dc bus
Connect.
In a kind of exemplary embodiment of the disclosure, described direct current multivoltage electrical power trans mission/distribution system also wraps
Include:
At least one second DC to DC converter；At least one HVDC load is respectively by described in one
Second DC to DC converter connects with described positive high voltage dc bus；
At least one the 3rd DC to DC converter；At least one low tension battery group and/or at least one low-pressure direct
Current load is connected with described low-voltage direct bus by the 3rd DC to DC converter described in respectively；
At least one second DC/AC inverter；At least one AC load is respectively by described in one second
DC/AC inverter connects with described positive high voltage dc bus.
In a kind of exemplary embodiment of the disclosure, the voltage range of described positive high voltage dc bus
For+280V～+320V.
In a kind of exemplary embodiment of the disclosure, the voltage of described positive high voltage dc bus is
+300V。
In a kind of exemplary embodiment of the disclosure, the voltage range of described negative high voltage dc bus
For-280V～-320V.
In a kind of exemplary embodiment of the disclosure, the voltage of described negative high voltage dc bus is-
300V。
In a kind of exemplary embodiment of the disclosure, the voltage range of described low-voltage direct bus is
+ 18V～+26V.
In a kind of exemplary embodiment of the disclosure, the voltage of described low-voltage direct bus is+20V.
+ 20V can directly connect with cells in notebook computer, thus can save notebook computer AC charging
Device.
In a kind of exemplary embodiment of the disclosure, also include a voltage transformer and switch；Institute
State voltage transformer and switch series be coupled to described AC network and described two-way exchange/DC converter it
Between.
In a kind of exemplary embodiment of the disclosure, described positive high voltage dc bus and a refrigerator,
Air-conditioning, washing machine, television set, microwave oven and/or domestic acoustics connect；
Described positive high voltage dc bus is by the second DC/AC inverter and a dehumidifier phase described in one
Connect；
Described low-voltage direct bus and a notebook computer connect；
Described low-voltage direct bus by described second DC to DC converter respectively with a LED,
One set of cells and/or a DC fan connect；
Described low-voltage direct bus is connected by one the 3rd DC/AC inverter and an ac fan.
By the direct current multivoltage electrical power trans mission/distribution system provided in disclosure exemplary embodiment, permissible
Save substantial amounts of line construction expense and transmission & distribution efficiency is higher；Simultaneously as direct current transmission and distribution exists
Only needing two power transmission lines during distribution electric energy, its resistance loss is less than alternating current circuit.Additionally, this example
There is not the problems such as frequency stable, in the direct current multivoltage electrical power trans mission/distribution system provided in property embodiment yet
There is not reactive power and power factor problem.
Accompanying drawing explanation
Its exemplary embodiment is described in detail, above and other feature of the disclosure by referring to accompanying drawing
And advantage will be apparent from.
Fig. 1 is that in disclosure exemplary embodiment, the structure of a kind of direct current multivoltage electrical power trans mission/distribution system is shown
It is intended to.
Fig. 2 is the concrete real of a kind of direct current multivoltage electrical power trans mission/distribution system in disclosure exemplary embodiment
Execute mode schematic diagram.
Fig. 3 is the structure of another direct current multivoltage electrical power trans mission/distribution system in disclosure exemplary embodiment
Schematic diagram.
Fig. 4 is the concrete of another direct current multivoltage electrical power trans mission/distribution system in disclosure exemplary embodiment
Embodiment schematic diagram.
Description of reference numerals:
L1 positive high voltage dc bus
L2 negative high voltage dc bus
L3 low-voltage direct bus
S1 first switchs
S2 second switch
U11 two-way exchange/DC converter
U12 AC-dc converter
U21 the first DC/AC inverter
U22 the second DC/AC inverter
U31 the first DC to DC converter
U32 the second DC to DC converter
U33 the 3rd DC to DC converter
U34 bidirectional, dc/DC converter
Detailed description of the invention
It is described more fully with exemplary embodiment referring now to accompanying drawing.But, exemplary embodiment
Can implement in a variety of forms, and be not understood as limited to embodiment set forth herein；Phase
Instead, it is provided that these embodiments make the disclosure will fully and completely, and by exemplary embodiment
Design conveys to those skilled in the art all sidedly.In the drawings, in order to clearly, exaggerate
The size of subelement or deformed.The most identical reference represents same or similar
Structure, thus their detailed description will be omitted.
Additionally, described feature, structure or characteristic can be combined in one in any suitable manner
In individual or more embodiment.In the following description, it is provided that many details thus be given this
Fully understanding of disclosed embodiment.It will be appreciated, however, by one skilled in the art that can put into practice
The technical scheme of the disclosure and do not have in described specific detail one or more, or can use
Other method, element etc..In other cases, it is not shown in detail or describes known features, side
Method or operation are to avoid each side of the fuzzy disclosure.
This exemplary embodiment provides a kind of direct current multivoltage electrical power trans mission/distribution system.With reference in Fig. 1
Shown in, this direct current multivoltage electrical power trans mission/distribution system and an AC network and generating set of renewable energy resource phase
Connect.It mainly includes a positive high voltage dc bus L1, a negative high voltage dc bus L2, a low pressure
Dc bus L3, a two-way AC-dc converter U11, a DC converter, one first straight
Stream/AC converter U21 and at least two-way DC to DC converter U34.Described alternating current
Described two-way exchange DC converter and described positive high voltage dc bus L1 and described negative cross in Netcom
High voltage dc bus L2 connects, and the alternating current of described AC network is by described two-way exchange direct current
Changer is converted to positive high voltage direct current and negative high voltage direct current.Described generating set of renewable energy resource passes through institute
State DC converter to connect with described positive high voltage dc bus L1, described generating set of renewable energy resource
The alternating current of output is converted to positive high voltage direct current by described DC converter, or, described regeneration
The DC current of energy source electric generating device output is positive high voltage direct current by the boosting of described DC converter.Institute
State positive high voltage dc bus L1 and negative high voltage dc bus L2 to be converted by described first AC/DC
Device U21 and high power AC load connect, such that it is able to use described positive high voltage direct current and negative height
Straightening stream provides electric energy for the load of described high power AC jointly.Described low-voltage direct bus L3 with
Described high voltage dc bus is connected by described at least one two-way DC to DC converter U34.Bus
L3 also has a U34 to connect " low tension battery group ".
Use above-mentioned direct current multivoltage electrical power trans mission/distribution system, substantial amounts of line construction expense can be saved,
And only needing two power transmission lines, its resistance loss is less than alternating current circuit.Additionally, for making with direct current
When powering for the household electrical appliance of power supply, the ac/dc commutator of input installing can be saved, both
Cost-effective can reduce again loss further, thus be greatly improved the economy that system is run
Property.And, direct current transmission and distribution also has the scope powered quality wide, electric energy high and distributed electrical
Source facilitates the advantages such as interconnection.Meanwhile, use above-mentioned direct current multivoltage electrical power trans mission/distribution system, there is not frequency
, the most there is not reactive power and power factor problem in the problems such as rate is stable.
In this exemplary embodiment, described generating set of renewable energy resource can include a photovoltaic generation dress
Put, a fuel cell power generating system and a wind power generation plant；Or, it is also possible to only include
State any one or two kinds in TRT, it is also possible to include other kinds of renewable source of energy generation
Device.Described photovoltaic power generation apparatus and fuel cell power generating system are become by one first DC-DC
Parallel operation U31 connects with described positive high voltage dc bus L1, and described wind power generation plant is by described
AC-dc converter U12 connects with described positive high voltage dc bus L1；As shown in fig. 1,
Between described AC-dc converter U12 and described positive high voltage dc bus L1, it is also possible to string
Join one first switch S1.Additionally, described direct current multivoltage electrical power trans mission/distribution system can also include a high pressure
Set of cells, described high-tension battery group can directly connect with described positive high voltage dc bus L1, from
And positive high voltage direct current is provided.
With reference to shown in Fig. 1 and Fig. 2, described direct current multivoltage electrical power trans mission/distribution system can also include
At least one second DC to DC converter U32, at least one the 3rd DC to DC converter U33, extremely
Few one second DC/AC inverter U22 and at least the 3rd DC/AC inverter.At least
One HVDC load is respectively by the second DC to DC converter U32 described in one and described positive high voltage
Dc bus L1 connects.HVDC load can also directly with positive high voltage dc bus L1 phase
Connect, such as, as shown in Figure 2, refrigerator, air-conditioning, washing machine, television set, microwave oven and
Domestic acoustics directly connects with described positive high voltage dc bus L1.At least one low tension battery group and/or
At least one low-voltage direct load is low with described by the 3rd DC to DC converter U33 described in respectively
Pressure dc bus L3 connects.Such as, as shown in Figure 2, a LED, a set of cells and
One DC fan is female with described low-voltage direct respectively by one second DC to DC converter U32 respectively
Line L3 connects.Low-voltage direct load can also directly connect with low-voltage direct bus L3, such as,
As shown in Figure 2, a notebook computer directly connects with described low-voltage direct bus L3.At least one
AC load is female with described positive high voltage direct current by the second DC/AC inverter U22 described in respectively
Line L1 connects.Such as, as shown in Figure 2, a dehumidifier is become by described second AC/DC
Parallel operation U22 connects with described positive high voltage dc bus L1.At least one low-voltage alternating-current load is led to respectively
Cross the 3rd DC/AC inverter described in connect with described low-voltage direct bus L3.Such as, as
Shown in Fig. 2, an ac fan is by described 3rd DC/AC inverter and described low-voltage direct
Bus L3 connects.
In above-mentioned exemplary embodiment, use converters can allow direct current multivoltage transmission & distribution
Electricity system forms isolated area respectively, and the fault of each region generation does not affect the running of system.Cause
The reliability of this direct current multivoltage electrical power trans mission/distribution system is higher than the alternating current circuit of equal voltage
With reference to shown in Fig. 2 and Fig. 4, in this exemplary embodiment, described direct current multivoltage transmission & distribution
Electricity system can also include a voltage transformer and second switch S2；Described voltage transformer and second
Switch S2 is series between described AC network and described two-way exchange/DC converter U11.Institute
The output voltage stating AC network is preferably 220AC/380AC.Additionally, in order to more efficient and reliable
Transmission electric energy, in this exemplary embodiment, the voltage range of described positive high voltage dc bus L1
For+280V～+320V.As shown in Fig. 3 and Fig. 4, described positive high voltage dc bus L1's
Voltage is preferably+300V.The voltage range of described negative high voltage dc bus L2 be-280V～-
320V.As shown in Fig. 3 and Fig. 4, the voltage of described negative high voltage dc bus L2 is preferably
-300V.For the ease of adaptive with household electrical appliance, the voltage range of described low-voltage direct bus L3
For+18V～+26V.As shown in Fig. 3 and Fig. 4, the voltage of described low-voltage direct bus L3
It is preferably+20V ,+20V can directly connect with cells in notebook computer, thus notes can be saved
The AC charger of this computer.
In sum, by the direct current multivoltage power transmission and distribution system provided in this exemplary embodiment
System, can save substantial amounts of line construction expense and transmission & distribution efficiency is higher；Simultaneously as direct current is defeated
Distribution only needs two power transmission lines when distributing electric energy, and its resistance loss is less than alternating current circuit.And,
Use converters that direct current multivoltage electrical power trans mission/distribution system can be allowed to form isolated area respectively, and
The fault that each region occurs does not affects the running of system.Therefore direct current multivoltage electrical power trans mission/distribution system can
The alternating current circuit of equal voltage it is higher than by property.Additionally, the direct current provided in this exemplary embodiment
There is not the problems such as frequency stable in multivoltage electrical power trans mission/distribution system, the most do not exist reactive power and power because of
Number problem.
The disclosure is been described by by above-mentioned related embodiment, but above-described embodiment only implements this
Disclosed example.It must be noted that, the embodiment disclosed is not limiting as the scope of the present disclosure.
On the contrary, the variation made in without departing from the spirit and scope of the disclosure and retouching, all belong to the disclosure
Scope of patent protection.
Claims (11)
1. a direct current multivoltage electrical power trans mission/distribution system, with an AC network and generating set of renewable energy resource
Connect；It is characterized in that, direct current multivoltage electrical power trans mission/distribution system includes:
One positive high voltage dc bus, a negative high voltage dc bus and a low-voltage direct bus；
One two-way AC-dc converter；Described AC network is by described two-way exchange DC converting
Device connects with described positive high voltage dc bus and described negative high voltage dc bus；
One first DC to DC converter or AC-dc converter；Described generating set of renewable energy resource
By described first DC to DC converter or AC-dc converter and described positive high voltage dc bus
Connect；
One first DC/AC inverter；Described positive high voltage dc bus leads to negative high voltage dc bus
Cross described first DC/AC inverter and high power AC load connects；
At least one two-way DC to DC converter；Described low-voltage direct bus is female with described HVDC
Line is connected by described at least one two-way DC to DC converter.
Direct current multivoltage electrical power trans mission/distribution system the most according to claim 1, it is characterised in that institute
State generating set of renewable energy resource and include that photovoltaic power generation apparatus, fuel cell power generating system, wind-power electricity generation fill
Put and/or high-tension battery group；
Described photovoltaic power generation apparatus, fuel cell power generating system and high-tension battery group pass through described first
DC to DC converter connects with described positive high voltage dc bus；
Described wind power generation plant is by described AC-dc converter and described positive high voltage dc bus
Connect.
Direct current multivoltage electrical power trans mission/distribution system the most according to claim 1 and 2, it is characterised in that
Described direct current multivoltage electrical power trans mission/distribution system also includes:
At least one second DC to DC converter；At least one HVDC load is respectively by described in one
Second DC to DC converter connects with described positive high voltage dc bus；
At least one the 3rd DC to DC converter；At least one low tension battery group and/or at least one low-pressure direct
Current load is connected with described low-voltage direct bus by the 3rd DC to DC converter described in respectively；
At least one second DC/AC inverter；At least one AC load is respectively by described in one second
DC/AC inverter connects with described positive high voltage dc bus.
Direct current multivoltage electrical power trans mission/distribution system the most according to claim 3, it is characterised in that institute
The voltage range stating positive high voltage dc bus is+280V～+320V.
Direct current multivoltage electrical power trans mission/distribution system the most according to claim 4, it is characterised in that institute
The voltage stating positive high voltage dc bus is+300V.
Direct current multivoltage electrical power trans mission/distribution system the most according to claim 3, it is characterised in that institute
The voltage range stating negative high voltage dc bus is-280V～-320V.
Direct current multivoltage electrical power trans mission/distribution system the most according to claim 6, it is characterised in that institute
The voltage stating negative high voltage dc bus is-300V.
Direct current multivoltage electrical power trans mission/distribution system the most according to claim 3, it is characterised in that institute
The voltage range stating low-voltage direct bus is+18V～+26V.
Direct current multivoltage electrical power trans mission/distribution system the most according to claim 8, it is characterised in that institute
The voltage stating low-voltage direct bus is+20V.
Direct current multivoltage electrical power trans mission/distribution system the most according to claim 1, it is characterised in that also
Including a voltage transformer and switch；Described voltage transformer and switch series be coupled to described AC network with
Between described two-way exchange/DC converter.
11. according to the direct current multivoltage electrical power trans mission/distribution system described in claim 4-10 any one, and it is special
Levy and be:
Described positive high voltage dc bus and a refrigerator, air-conditioning, washing machine, television set, microwave oven and/
Or domestic acoustics connects；
Described positive high voltage dc bus is by the second DC/AC inverter and a dehumidifier phase described in one
Connect；
Described low-voltage direct bus and a notebook computer connect；
Described low-voltage direct bus by described second DC to DC converter respectively with a LED,
One set of cells and/or a DC fan connect；
Described low-voltage direct bus is connected by one the 3rd DC/AC inverter and an ac fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510146559.XA CN106160022A (en) | 2015-03-31 | 2015-03-31 | Direct current multivoltage electrical power trans mission/distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510146559.XA CN106160022A (en) | 2015-03-31 | 2015-03-31 | Direct current multivoltage electrical power trans mission/distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106160022A true CN106160022A (en) | 2016-11-23 |
Family
ID=57337203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510146559.XA Pending CN106160022A (en) | 2015-03-31 | 2015-03-31 | Direct current multivoltage electrical power trans mission/distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106160022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019217450A1 (en) * | 2019-11-12 | 2021-05-12 | Siemens Aktiengesellschaft | Charging station and method for charging a consumer with load sharing |
| WO2024034194A1 (en) * | 2022-08-09 | 2024-02-15 | 株式会社フジタ | Power control system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202455149U (en) * | 2011-09-30 | 2012-09-26 | 百度在线网络技术（北京）有限公司 | Power supply system for supplying electronic equipment and frame power supply |
| CN103560541A (en) * | 2013-11-16 | 2014-02-05 | 沈阳工业大学 | Fault ride-through control device and method for alternating/direct current mixed microgrid |
| CN103607032A (en) * | 2013-11-20 | 2014-02-26 | 梁一桥 | Renewable energy generating, power transmission and transformation and electrical network access integrated system |
| CN203645323U (en) * | 2013-11-28 | 2014-06-11 | 陕西银河网电科技有限公司 | DC microgrid control system |
| CN103956761A (en) * | 2014-04-22 | 2014-07-30 | 电子科技大学 | Mixed micro-grid system of large-scale energy recycling power battery pack test device |
| WO2014121826A1 (en) * | 2013-02-06 | 2014-08-14 | Abb Technology Ltd | Solar power plant, method of controlling a solar power plant and a dc/dc conversion system |
-
2015
- 2015-03-31 CN CN201510146559.XA patent/CN106160022A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202455149U (en) * | 2011-09-30 | 2012-09-26 | 百度在线网络技术（北京）有限公司 | Power supply system for supplying electronic equipment and frame power supply |
| WO2014121826A1 (en) * | 2013-02-06 | 2014-08-14 | Abb Technology Ltd | Solar power plant, method of controlling a solar power plant and a dc/dc conversion system |
| CN103560541A (en) * | 2013-11-16 | 2014-02-05 | 沈阳工业大学 | Fault ride-through control device and method for alternating/direct current mixed microgrid |
| CN103607032A (en) * | 2013-11-20 | 2014-02-26 | 梁一桥 | Renewable energy generating, power transmission and transformation and electrical network access integrated system |
| CN203645323U (en) * | 2013-11-28 | 2014-06-11 | 陕西银河网电科技有限公司 | DC microgrid control system |
| CN103956761A (en) * | 2014-04-22 | 2014-07-30 | 电子科技大学 | Mixed micro-grid system of large-scale energy recycling power battery pack test device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019217450A1 (en) * | 2019-11-12 | 2021-05-12 | Siemens Aktiengesellschaft | Charging station and method for charging a consumer with load sharing |
| WO2024034194A1 (en) * | 2022-08-09 | 2024-02-15 | 株式会社フジタ | Power control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Cvetkovic et al. | A testbed for experimental validation of a low-voltage DC nanogrid for buildings | |
| CN103915856B (en) | A kind of base station is grid-connected-charging photovoltaic micro-inverter system and control method thereof | |
| CN104426157A (en) | Energy storage module and energy storage device | |
| CN105226714A (en) | A kind of offshore wind farm direct current converges transmission system and method for designing | |
| CN104218805B (en) | Unipolar-bipolar convertible direct-current converter | |
| CN110970922A (en) | Alternating current-direct current hybrid distributed renewable energy system | |
| CN103490448A (en) | Power generation energy storage device based on cascade H bridge and multiport DC converter | |
| CN107634543A (en) | A kind of offshore wind farm booster system and step-up method | |
| Kadandani et al. | Solid state transformer: An overview of circuit configurations and applications | |
| CN103501117A (en) | Power transformation transmission system suitable for wave power generator unit | |
| Chauhan et al. | DC microgrid in residential buildings | |
| CN103475032A (en) | Intelligent power distribution and utilization flexible control system | |
| CN105652116B (en) | Back-to-back test circuit based on DC/DC converter | |
| CN203574386U (en) | Multilevel multiport power generation and energy storage hybrid apparatus | |
| CN106160022A (en) | Direct current multivoltage electrical power trans mission/distribution system | |
| CN102568799A (en) | Phase-shift transformer and electric energy transmission device with same | |
| Kuo et al. | A high-performance bidirectional DC-DC converter for DC micro-grid system application | |
| US20220166219A1 (en) | Systems and methods for modular power conversion units in power supply systems | |
| CN202134923U (en) | Deep charging and discharging type battery energy storage paralleling device | |
| CN205123278U (en) | Marine wind power direct current assembles power transmission system | |
| CN204046508U (en) | Photovoltaic DC-to-AC converter and air conditioner | |
| Hu et al. | Application of power electronic technology to energy Internet | |
| CN203522550U (en) | Power transformation transmission system suitable for wave power generator unit | |
| CN102904275A (en) | New energy grid connection system and achieving method thereof | |
| CN209217972U (en) | Photovoltaic combining inverter is pressed in one kind |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |
|
| WD01 | Invention patent application deemed withdrawn after publication |