CN207475207U - A kind of multi source contribution system of frequency conversion converter - Google Patents
A kind of multi source contribution system of frequency conversion converter Download PDFInfo
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- CN207475207U CN207475207U CN201721449105.0U CN201721449105U CN207475207U CN 207475207 U CN207475207 U CN 207475207U CN 201721449105 U CN201721449105 U CN 201721449105U CN 207475207 U CN207475207 U CN 207475207U
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- frequency conversion
- current
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- power generation
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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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Abstract
The utility model discloses a kind of multi source contribution systems of frequency conversion converter, the design of multi source contribution system and transformation based on frequency conversion, converter are applicable in, including frequency conversion current converter, ac bus, dc bus, switching switch, photovoltaic power generation apparatus, direct-current generating device, ac power generation, DC energy storage device etc..The utility model opens frequency conversion current converter dc bus, the various energy such as photovoltaic power generation apparatus, direct-current generating device, ac power generation, DC energy storage device are sent to the dc bus of frequency conversion current converter after DC/DC, AC/DC change of current, alternating current-direct current load supplying is transformed to or to grid transmission by DC/DC transformation or DC/AC, rationally to utilize frequency conversion current converter and the spare capacity of electrical system, cost is reduced.The utility model is smaller to original system change, and improvement cost is relatively low, can improve the operational efficiency and utilization rate of equipment and installations of whole system.
Description
Technical field
Multi source contribution more particularly to a kind of multi-source of frequency conversion converter the utility model is related to alternating current-direct current electricity system
Electric power system.
Background technology
With the progress of Power Electronic Technique, large-capacity power electronic device cost constantly declines, and is used widely, greatly
The occasion of the applications such as the frequency conversion equipments such as power frequency-variable speed-regulating equipment, electrolysis, electroplating device, welding equipment, converter is increasingly
It is more.These equipment most of the times work in the Peak power use phase so that production cost is higher, and stops in the low power consumption period
Work, causes frequency conversion converter to leave unused.
Utility model content
The purpose of the utility model is to overcome the shortcomings that above-mentioned technology, provide a kind of multi source contribution of frequency conversion converter
System.
The purpose of this utility model is at least through the realization of one of following technical solution.
A kind of multi source contribution system of frequency conversion converter is applicable in the multi source contribution system based on frequency conversion, converter,
Including frequency conversion current converter, ac bus, dc bus, switching switch, photovoltaic power generation apparatus, direct-current generating device, exchange hair
Electric installation and DC energy storage device；
Frequency conversion current converter dc bus is opened, it is photovoltaic power generation apparatus, direct-current generating device, ac power generation, straight
Various energy resources in stream energy storage device are sent to the dc bus of frequency conversion current converter after DC/DC the or AC/DC changes of current, pass through switching
The switching of switch and the adjustment of frequency conversion current converter operational mode are alternating current-direct current load supplying or to grid transmission.
Further, the photovoltaic power generation apparatus, direct-current generating device, DC energy storage device, ac power generation with
The dc bus of frequency conversion current converter is connected, for electrical power to be sent to power grid or DC energy storage device.
Further, the photovoltaic power generation apparatus includes solar energy photovoltaic panel, DC/DC change of current modules, for by solar energy
The direct current that photovoltaic panel is sent out connects dc bus through DC/DC changes of current module, and is sent to frequency conversion current converter.
Further, the direct-current generating device is used for the direct current that DC generation equipment is sent out through DC/DC change of current moulds
Block connects dc bus, and is sent to frequency conversion current converter.
Further, the DC energy storage device includes battery and charge-discharge circuit, and charge-discharge circuit connects through dc bus
Frequency conversion current converter is connect, the energy exchange being used to implement between dc bus and battery.
Further, the ac power generation include AC power generating apparatus and its rectification, DC/DC converter circuits, rectification,
DC/DC converter circuits connect frequency conversion current converter through dc bus, for the electrical power that ac power generation is sent out to be sent to change
Frequency current converter.
Further, the frequency conversion current converter include change of current module and frequency-variable module, by diode, thyristor,
The voltage-type and current mode power electronic device and its driving of these uncontrollable, half controls of MOSFET, IGCT and IGBT and full-control type
Control system forms, and the driving control system can adjust power electronics device according to the operational mode dynamic of connected application
The control algolithm of part is used to implement and is controlled with the frequency conversion change of current, transformation and the frequency conversion function between institute connecting object, and according to connecting
The operating status dynamic of object adjusts the structure of converter system.
The utility model is had the following advantages and effect relative to the prior art：
The utility model is simple, it is easy to accomplish.The utility model opens frequency conversion current converter dc bus, other are newly-increased
The energy is by frequency conversion current converter for alternating current-direct current load supplying or to grid transmission, improvement cost smaller to the change of original system
It is relatively low.As described above, this system technological means is simple and easy to do, with reference to frequency conversion current converter characteristic, used not influencing original equipment
Under conditions of, the idle capacity of frequency conversion current converter is made full use of, various energy resources share power generation and power transmission and transforming equipment, improve equipment
Utilization rate reduces cost.
Description of the drawings
Fig. 1 is the block diagram and control schematic diagram of the utility model embodiment 1.
Fig. 2 is the block diagram and control schematic diagram of the utility model embodiment 2.
Specific embodiment
The purpose of utility model of the utility model is described in further detail in the following with reference to the drawings and specific embodiments,
Embodiment cannot repeat one by one herein, and therefore the embodiment of the utility model is not defined in following embodiment, need to point out
It is that the utility model is the improved technical solution of the hardware configuration proposition to system, if relating to need during following instance
It wants what software was realized, is that those skilled in the art can realize according to prior art program.
Embodiment 1
As shown in Figure 1.A kind of multi source contribution system of frequency conversion converter, for frequency conversion, the multi source contribution of converter
System designs and transformation, including frequency conversion current converter, ac bus AC0, dc bus DC0, switching switch SW1, photovoltaic generation
Device DCV1, direct-current generating device DCV2, DC energy storage device DCV3, ac power generation ACV1.
Converter plant is made of rectification module VF2, frequency-variable module VF1.
Frequency conversion current converter dc bus is opened, photovoltaic power generation apparatus DCV1, direct-current generating device DCV2, DC energy storage
The various energy such as device DCV3, ac power generation ACV1 are sent to the direct current of frequency conversion current converter after DC/DC, AC/DC change of current
Busbar DC0 is transformed to AC load power supply or to grid transmission by DC/AC.
In the present embodiment, other after DC/DC or AC/DC is converted, are sent with the electric energy sent out of direct current or form of communication
To the dc bus of converter plant, then it is sent to power grid or electric machine rotor through VF1 or VF2 inversions and powers for motor.
Embodiment 2
As shown in Fig. 2, a kind of multi source contribution method and system of frequency conversion converter, for the multi source contribution of converter
System designs and transformation, including current converter, ac bus AC0, dc bus DC0, switching switch SW1, photovoltaic power generation apparatus
DCV1, direct-current generating device DCV2, DC energy storage device DCV3, ac power generation ACV1.
Current converter is made of rectification module VF4, change of current module VF3.
Current converter dc bus is opened, photovoltaic power generation apparatus DCV1, direct-current generating device DCV2, DC energy storage device
The various energy such as DCV3, ac power generation ACV1 are sent to the dc bus of frequency conversion current converter after DC/DC, AC/DC change of current
DC0 is transformed to DC load power supply or to grid transmission by DC/DC transformation or DC/AC.
As described above, it can preferably realize the utility model.
The embodiment of the utility model is simultaneously not restricted to the described embodiments, other are any without departing from the utility model
Spirit Essence with made under principle change, modification, replacement, combine, simplification, should be equivalent substitute mode, be included in
Within the scope of protection of the utility model.
Claims (7)
1. a kind of multi source contribution system of frequency conversion converter is applicable in the multi source contribution system based on frequency conversion, converter, special
Sign is：Including frequency conversion current converter, ac bus, dc bus, switching switch, photovoltaic power generation apparatus, direct-current generating device,
Ac power generation and DC energy storage device；
Frequency conversion current converter dc bus is opened, photovoltaic power generation apparatus, direct-current generating device, ac power generation, direct current storage
Various energy resources in energy device are sent to the dc bus of frequency conversion current converter after DC/DC the or AC/DC changes of current, pass through switching switch
Switching and frequency conversion current converter operational mode adjustment, be alternating current-direct current load supplying or to grid transmission.
2. the multi source contribution system of frequency conversion converter according to claim 1, it is characterised in that the photovoltaic generation dress
Put, the dc bus of direct-current generating device, DC energy storage device, ac power generation with frequency conversion current converter is connected, be used for
Electrical power is sent to power grid or DC energy storage device.
3. the multi source contribution system of frequency conversion converter according to claim 1, it is characterised in that the photovoltaic generation dress
Put comprising solar energy photovoltaic panel, DC/DC change of current modules, for by the direct current that solar energy photovoltaic panel is sent out through DC/DC change of current moulds
Block connects dc bus, and is sent to frequency conversion current converter.
4. the multi source contribution system of frequency conversion converter according to claim 1, it is characterised in that the DC generation dress
It puts for the direct current that DC generation equipment is sent out to be connected dc bus through DC/DC changes of current module, and is sent to frequency conversion change of current dress
It puts.
5. the multi source contribution system of frequency conversion converter according to claim 1, it is characterised in that the DC energy storage dress
It puts comprising battery and charge-discharge circuit, charge-discharge circuit connects frequency conversion current converter through dc bus, is used to implement dc bus
Energy exchange between battery.
6. the multi source contribution system of frequency conversion converter according to claim 1, it is characterised in that the alternative electric generation dress
It puts comprising AC power generating apparatus and its rectification, DC/DC converter circuits, rectification, DC/DC converter circuits connect frequency conversion through dc bus
Current converter, for the electrical power that ac power generation is sent out to be sent to frequency conversion current converter.
7. the multi source contribution system of frequency conversion converter according to claim 1, it is characterised in that the frequency conversion change of current dress
It puts including change of current module and frequency-variable module, by diode, thyristor, these uncontrollable, half controls of MOSFET, IGCT and IGBT and complete
Voltage-type and current mode power electronic device and its driving control system composition of control type, the driving control system are used to implement
It is controlled with frequency conversion, the change of current, transformation and the frequency conversion function between institute connecting object, and according to the operating status dynamic tune of connect object
The structure of whole converter system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721449105.0U CN207475207U (en) | 2017-11-01 | 2017-11-01 | A kind of multi source contribution system of frequency conversion converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721449105.0U CN207475207U (en) | 2017-11-01 | 2017-11-01 | A kind of multi source contribution system of frequency conversion converter |
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| Publication Number | Publication Date |
|---|---|
| CN207475207U true CN207475207U (en) | 2018-06-08 |
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|---|---|---|---|
| CN201721449105.0U Active CN207475207U (en) | 2017-11-01 | 2017-11-01 | A kind of multi source contribution system of frequency conversion converter |
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| Country | Link |
|---|---|
| CN (1) | CN207475207U (en) |
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2017
- 2017-11-01 CN CN201721449105.0U patent/CN207475207U/en active Active
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