CN205509864U - Energy route device of intelligent power distribution net - Google Patents
Energy route device of intelligent power distribution net Download PDFInfo
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- CN205509864U CN205509864U CN201620287407.1U CN201620287407U CN205509864U CN 205509864 U CN205509864 U CN 205509864U CN 201620287407 U CN201620287407 U CN 201620287407U CN 205509864 U CN205509864 U CN 205509864U
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Abstract
The utility model discloses an energy route device of intelligent power distribution net, including the high -pressure side that connects gradually, the isolation level once inclines, isolation level secondary side and low tension side, the high -pressure side includes high voltage generating line and low pressure dc bus, the low tension side includes low pressure ac bus and low pressure dc bus, each generating line is as the interface of energy router, the high -pressure side adopts five level converter of three -phase, the isolation level once inclines and adopts five single -phase level converter, the isolation level secondary side adopts three H bridge construction, the low tension side adopts the converter of three level, adopt transformer coupling formula unit series connection high -voltage frequency converters structure. The utility model discloses increased the alternating current -direct current interface, it is functional strong, realize isolated fault or harmonic current, the high -low pressure dc bus has improved the admittance ability of intelligent power distribution net to distributed generator, inserts energy storage equipment through the high -low pressure dc bus, still can fill out millet for the distribution network disappears the peak, realizes high pressure resistant ability and large capacity input/output.
Description
Technical field
This utility model relates to the energy routing device of a kind of intelligent distribution network, belongs to technical field of power systems.
Background technology
Exhaustion along with fossil energy, distributed new generating is likely to become the main source of future source of energy, therefore energy interconnection is the inexorable trend of following power network development, current energy interconnect device is mostly based on Power Electronic Technique, it is all some single voltage sources or current source type changer, it is not provided that the NETOMAC of multiple electrical energy form, function singleness, the wide variation of electric pressure can not be realized, can not isolated fault or harmonic current, can not high pressure resistant and Large Copacity input and output, it is impossible in intelligent grid, realize the function of electric energy route.
Summary of the invention
The technical problems to be solved in the utility model is: provide the energy routing device of a kind of intelligent distribution network, functional strong, isolated fault or harmonic current, realize the function of electric energy route, improve the intelligent distribution network receiving ability to distributed power source, disappear peak load for power distribution network, also there is the high pressure resistant and function of Large Copacity route, to solve problems of the prior art.
The technical scheme that this utility model is taked is: the energy routing device of a kind of intelligent distribution network, including the high-pressure side being sequentially connected with, isolation level primary side, isolation level secondary side and low-pressure side, described high-pressure side includes high voltage AC bus and low-voltage direct bus, described low-pressure side includes low-voltage alternating-current bus and low-voltage direct bus, each bus is as the interface of energy router, described high-pressure side uses three-phase five-level converter, described isolation level primary side uses single-phase five-level converter, described isolation level secondary side uses three H bridge constructions, described low-pressure side uses the changer of three three level, use transformer coupled formula unit series high-voltage conversion architecture.
Preferably, above-mentioned three-phase five-level converter and single-phase five-level converter are respectively adopted MMC module, and described MMC module is made up of semi-bridge type inverter and DC capacitor.
Preferably, the energy routing device of above-mentioned a kind of intelligent distribution network, also include integrated control system, described integrated control system includes controller and testing circuit, described controller connects testing circuit and IGBT drive circuit, described testing circuit is connected respectively to the PT/CT of changer input and outfan, and for gathering the signal step voltage current signal obtained by testing circuit, described IGBT drive circuit is connected to changer.
Preferably, it is also associated with filter circuit between above-mentioned testing circuit and controller.
Preferably, two photoelectric switching circuits it are also associated with between controller noted above and IGBT drive circuit.
The beneficial effects of the utility model: compared with prior art, this utility model adds NETOMAC, functional by force, realize isolated fault or harmonic current, high-low pressure dc bus improves the intelligent distribution network receiving ability to distributed power source, energy storage device is accessed by high-low pressure dc bus, can be also that power distribution network disappears peak load, isolation level secondary side uses the structure of three H bridge cascades, realize high voltage bearing ability and Large Copacity input and output, this utility model can be used for high-voltage alternating system, high-voltage direct current, low-voltage alternating-current system and low-voltage direct-current system carry out energy routing.
Accompanying drawing explanation
Fig. 1 is main circuit structure schematic diagram of the present utility model；
Fig. 2 is control circuit structural representation of the present utility model；
Fig. 3 is population structure schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and utility model is described further by specific embodiment.
nullAs shown in Fig. 1 ~ 3，A kind of energy routing device of intelligent distribution network，Including the high-pressure side being sequentially connected with、Isolation level primary side、Isolation level secondary side and low-pressure side，Described high-pressure side includes high voltage AC bus and low-voltage direct bus，Described low-pressure side includes low-voltage alternating-current bus and low-voltage direct bus，Each bus is as the interface of energy router，Described high-pressure side uses three-phase five-level converter based on MMC module，Described isolation level primary side uses single-phase five-level converter based on MMC module，Described isolation level secondary side uses three H bridge constructions，Described low-pressure side uses the changer of three three level，Use transformer coupled formula unit series high-voltage conversion architecture，Realize the function of jumbo access or output，Described MMC module is made up of semi-bridge type inverter and DC capacitor，The contained isolating transformer of this energy router has buffer action，Short trouble and harmonic wave can be isolated，If long-time fault，Can also be by latch power electronic device to avoid failure propagation，The function of relay protection can be served as in power system，Energy routing device is grid-connected to distributed new、Intelligent grid and energy interconnection play a crucial role，Existence due to the high-low pressure dc bus of energy router，The intelligent distribution network receiving ability to distributed power source can be improved，Energy storage device is accessed by high-low pressure dc bus，Can be also that power distribution network disappears peak load，And the function of reply low voltage crossing.
Preferably, the energy routing device of above-mentioned a kind of intelligent distribution network, also include integrated control system, described integrated control system includes controller and testing circuit, described controller connects testing circuit and IGBT drive circuit, described testing circuit is connected respectively to the PT/CT of changer input and outfan, the signal step voltage current signal obtained by testing circuit for collection, described IGBT drive circuit is connected to changer, it is also associated with filter circuit between testing circuit and controller, between controller and IGBT drive circuit, is also associated with two photoelectric switching circuits.nullThe voltage x current of output in energy router is detected by testing circuit，Measured signal step voltage electric current model is filtered by filter circuit，It is acquired by the I/O mouth of integrated control system，SPWM is sent by running the control program loaded，SPWM signal gives the photoelectric switching circuit on drive circuit by photoelectric switching circuit after being changed，Finally triggered IGBT by drive circuit，It is consequently formed closed loop system，Population structure is as shown in Figure 3，It is controlled by five integrated manipulator inverters each to energy router，The signal step voltage current signal of its testing circuit gained router interface feeds back to integrated manipulator，Integrated manipulator gathers voltage and current signal by I/O mouth，Each integrated control system is controlled energy router is at different levels according to actual requirement，To realize the energy routing of the ac and dc systems of different electric pressure，By the way of isolating transformer and controller combine, realize voltage smooth and the function of wide variation，Realize the wide variation of electric pressure.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; change can be readily occurred in or replace; all should contain within protection domain of the present utility model, therefore, protection domain of the present utility model should be as the criterion with described scope of the claims.
Claims (5)
1. the energy routing device of an intelligent distribution network, it is characterized in that: include the high-pressure side being sequentially connected with, isolation level primary side, isolation level secondary side and low-pressure side, described high-pressure side includes high voltage AC bus and low-voltage direct bus, described low-pressure side includes low-voltage alternating-current bus and low-voltage direct bus, each bus is as the interface of energy router, described high-pressure side uses three-phase five-level converter, described isolation level primary side uses single-phase five-level converter, described isolation level secondary side uses three H bridge constructions, described low-pressure side uses the changer of three three level, use transformer coupled formula unit series high-voltage conversion architecture.
The energy routing device of a kind of intelligent distribution network the most according to claim 1, it is characterised in that: described three-phase five-level converter and single-phase five-level converter are respectively adopted MMC module, and described MMC module is made up of semi-bridge type inverter and DC capacitor.
The energy routing device of a kind of intelligent distribution network the most according to claim 1, it is characterized in that: also include integrated control system, described integrated control system includes controller and testing circuit, described controller connects testing circuit and IGBT drive circuit, described testing circuit is connected respectively to the PT/CT of changer input and outfan, the signal step voltage current signal obtained by testing circuit for collection, described IGBT drive circuit is connected to changer.
The energy routing device of a kind of intelligent distribution network the most according to claim 3, it is characterised in that: it is also associated with filter circuit between described testing circuit and controller.
The energy routing device of a kind of intelligent distribution network the most according to claim 3, it is characterised in that: it is also associated with two photoelectric switching circuits between described controller and IGBT drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620287407.1U CN205509864U (en) | 2016-04-08 | 2016-04-08 | Energy route device of intelligent power distribution net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620287407.1U CN205509864U (en) | 2016-04-08 | 2016-04-08 | Energy route device of intelligent power distribution net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205509864U true CN205509864U (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620287407.1U Expired - Fee Related CN205509864U (en) | 2016-04-08 | 2016-04-08 | Energy route device of intelligent power distribution net |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956598A (en) * | 2017-04-11 | 2017-07-18 | 山东大学 | A kind of electric power electric transformer tractive power supply system for improving power density |
-
2016
- 2016-04-08 CN CN201620287407.1U patent/CN205509864U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956598A (en) * | 2017-04-11 | 2017-07-18 | 山东大学 | A kind of electric power electric transformer tractive power supply system for improving power density |
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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: 20160824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |