CN203660631U - Hybrid inverter with uninterrupted power supply function - Google Patents
Hybrid inverter with uninterrupted power supply function Download PDFInfo
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- CN203660631U CN203660631U CN201320793842.8U CN201320793842U CN203660631U CN 203660631 U CN203660631 U CN 203660631U CN 201320793842 U CN201320793842 U CN 201320793842U CN 203660631 U CN203660631 U CN 203660631U
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- inverter
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- bus
- power supply
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- 238000004146 energy storage Methods 0.000 claims abstract description 8
- 230000002441 reversible effect Effects 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 abstract 4
- 238000010248 power generation Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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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 provides a hybrid inverter with an uninterrupted power supply function. The hybrid inverter comprises a converter, a bidirectional converter, a bidirectional inverter, a bus, a controller, a first path switch, and a second path switch. One end of the first path switch and one end of the second path switch are connected; the other ends of the first path switch and the second path switch and the portion between the first path switch and the second path switch each lead out a port, and the ports are respectively a first port, a second port and a third port; the first port is connected with the AC output of the main body of the hybrid inverter; the second port and the third port are respectively used for connection with a power network and a load; one end of the converter is connected with a new energy generating unit such as a photovoltaic generating unit and the like, and the other end is connected with the bus; one end of the bidirectional converter is connected with an energy storage unit, and the other end is connected with the bus; and one end of the bidirectional inverter is connected with the bus, and the other end is connected with the first port. When a fault occurs in the power network or the hybrid inverter, important loads can still supply power, thus uninterrupted power supply is realized.
Description
Technical field
The utility model relates to a kind of inverter, relates in particular to a kind of mixing inverter with uninterrupted power supply function.
Background technology
It is grid-connected that traditional combining inverter only can be realized photovoltaic power, in the time that electric network fault disconnects, can only shut down, and cannot, from net power supply, more cannot realize the demand of UPS (the Uninterrupted Power Supply) uninterrupted power supply of important load.
At present, solar power generation has been obtained large-scale application, and the proportion of solar power generation in electrical network also improves day by day.Due to intermittence and the randomness of solar power generation, electrical network is caused to certain impact.The Europe of greatly developing at solar energy, has started to limit solar grid-connected maximum power, and along with the reduction of cost for solar power generation, photovoltaic subsidized price also declines year by year.
Therefore become solar inverter development trend with the mixing inverter of storage battery.
In the time that the generated output of photovoltaic module is greater than power limitation, by unnecessary power storage, at battery, in the time that photovoltaic module power declines, battery is connected to the grid the energy of storage again, brings into play to greatest extent the generating capacity of photovoltaic module.
Allow user feel grid-connected uneconomical even loss of capital if photovoltaic subsidized price drops to, the electric energy that photovoltaic module can be sent is except for load, and all the other electric energy are all stored in battery, treat night and overcast and rainy use.
Utility model content
The utility model proposes mixing inverter structure, in realizing energy storage and grid-connected function, can provide independent power supply interface, realize the uninterrupted power supply demand of important load.
The utility model provides a kind of mixing inverter with uninterrupted power supply function, and it comprises converter, reversible transducer, bus, two-way inverter, controller, first via switch, the second way switch;
One end of first via switch, the second way switch joins, a port is drawn in the other end of double switch and the centre of double switch, be respectively the first port, the second port, the 3rd port, the first port is connected with the interchange output that mixes inverter main body, and the second port, the 3rd port are respectively used to be connected with electrical network, load;
Access generation of electricity by new energy unit, converter one end, the other end is connected with bus, reversible transducer one end access energy-storage units, the other end is connected with bus, two-way inverter one end connection bus, the other end is connected with the first port;
Controller detects also control change device, reversible transducer, two-way inverter, bus, first via switch, the second way switch;
Controller is received the electric power input of generation of electricity by new energy unit by control change device, by controlling charge and discharge and the protection of reversible transducer control energy-storage units, by controlling output and the input of two-way inverter control alternating electromotive force, and maintain bus power-balance.
As further improvement of the utility model, first via switch is to be formed by single or multiple switch series parallel combinations.
As further improvement of the utility model, the second way switch is to be formed by single or multiple switch series parallel combinations.
As further improvement of the utility model, first via switch, the second way switch are mechanical switch or are controlled power electronic device.
As further improvement of the utility model, first via switch, the second way switch are all built in and mix inverter inside, or it is outside independent complete to be placed on mixing inverter, or are partly mixing inverter inside, are partly mixing inverter outside.
As further improvement of the utility model, in the mixing inverter of family expenses, important load is connected on the 3rd port.
As further improvement of the utility model, mix the bus of inverter as an independent part, be connected with converter, reversible transducer, two-way inverter.
As further improvement of the utility model, bus is distributed to one or more in converter, reversible transducer, two-way inverter, and the port that converter, reversible transducer, two-way inverter are originally connected with bus is directly connected.
The beneficial effects of the utility model are:
When electrical network or while mixing in inverter a fault, important load still can be powered, and realizes uninterrupted power supply.
In the mixing inverter of family expenses, some important loads can be allowed, as illumination, computer etc. are connected on N3 mouth, when electric network fault or fault of converter, uninterrupted power supply can be realized.
Accompanying drawing explanation
Fig. 1 is the application schematic diagram of a kind of mixing inverter with uninterrupted power supply function of the utility model.
K is the isolation panel switches between civil power and inverter.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
The utility model is introduced energy-storage units, reversible transducer, two-way inverter and a switching network being made up of K1, K2 and corresponding controller in combining inverter, this controller can control switch K1, K2 and the unit of mixing inverter, as shown in Figure 1.
Controller is by controlling each converter, control charge and discharge, the power grid energy of input, the energy-storage units of photovoltaic energy input and output, maintain bus balance and follow the tracks of bearing power variation.And detect the state of converter in figure, reversible transducer, two-way inverter, and the voltage and current of electrical network (between K switch and electrical network), judge that whether electrical network and inverter be normal.
When controller judges that electrical network is normal, inverter is when normal, controller is by control signal (as relay dry contact signal), make K1, K2 all closed, mix like this inverter and electrical network by K1, K2 exchange electric energy, load by K1 and K2 by electrical network or inverter power supply;
When controller judges electric network fault, when inverter is normal, controller allows K2 disconnect rapidly by control signal, by electrical network and inverter, load isolation, and K1 closure simultaneously, load realizes uninterrupted power supply by K1 by inverter;
When controller judges that electrical network is normal, when inverter is abnormal, controller allows K1 disconnect rapidly by control signal, by inverter and electrical network, load isolation, and K2 closure simultaneously, load realizes uninterrupted power supply by K2 by electrical network;
If inverter and controller failure, what connect due to K2 is normally-closed contact, and K1 is normally opened contact, and K2 is automatically closed, and K1 disconnects automatically, isolated fault inverter, and load realizes uninterrupted power supply by K2.
When one of them fault of electrical network and inverter, only need a switch motion, and only need two switches, cost is low.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (8)
1. a mixing inverter with uninterrupted power supply function, is characterized in that: it comprises converter, reversible transducer, bus, two-way inverter, controller, first via switch, the second way switch;
One end of first via switch, the second way switch joins, a port is drawn in the other end of double switch and the centre of double switch, be respectively the first port, the second port, the 3rd port, the first port is connected with the interchange output that mixes inverter main body, and the second port, the 3rd port are respectively used to be connected with electrical network, load;
Access generation of electricity by new energy unit, converter one end, the other end is connected with bus, reversible transducer one end access energy-storage units, the other end is connected with bus, two-way inverter one end connection bus, the other end is connected with the first port;
Controller detects also control change device, reversible transducer, two-way inverter, bus, first via switch, the second way switch;
Controller is received the electric power input of generation of electricity by new energy unit by control change device, by controlling charge and discharge and the protection of reversible transducer control energy-storage units, by controlling output and the input of two-way inverter control alternating electromotive force, and maintain bus power-balance.
2. a kind of mixing inverter with uninterrupted power supply function according to claim 1, is characterized in that: first via switch is to be formed by single or multiple switch series parallel combinations.
3. a kind of mixing inverter with uninterrupted power supply function according to claim 1, is characterized in that: the second way switch is to be formed by single or multiple switch series parallel combinations.
4. a kind of mixing inverter with uninterrupted power supply function according to claim 1, is characterized in that: first via switch, the second way switch are mechanical switch or are controlled power electronic device.
5. a kind of mixing inverter with uninterrupted power supply function according to claim 1, it is characterized in that: first via switch, the second way switch are all built in and mix inverter inside, or it is outside independent complete to be placed on mixing inverter, or part is in mixing inverter inside, is partly mixing inverter outside.
6. a kind of mixing inverter with uninterrupted power supply function according to claim 1, is characterized in that: in the mixing inverter of family expenses, important load is connected on the 3rd port.
7. a kind of mixing inverter with uninterrupted power supply function according to claim 1, is characterized in that: mix the bus of inverter as an independent part, be connected with converter, reversible transducer, two-way inverter.
8. a kind of mixing inverter with uninterrupted power supply function according to claim 1, it is characterized in that: bus is distributed to one or more in converter, reversible transducer, two-way inverter, the port that converter, reversible transducer, two-way inverter are originally connected with bus is directly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793842.8U CN203660631U (en) | 2013-12-04 | 2013-12-04 | Hybrid inverter with uninterrupted power supply function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320793842.8U CN203660631U (en) | 2013-12-04 | 2013-12-04 | Hybrid inverter with uninterrupted power supply function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203660631U true CN203660631U (en) | 2014-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320793842.8U Expired - Lifetime CN203660631U (en) | 2013-12-04 | 2013-12-04 | Hybrid inverter with uninterrupted power supply function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203660631U (en) |
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2013
- 2013-12-04 CN CN201320793842.8U patent/CN203660631U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221102 Address after: Floor 9, Keshida Industrial Park R&D Building, No.7 Road, Gaoxinyuan West District, Guangming New District, Shenzhen, Guangdong 518000 Patentee after: SHENZHEN KSTAR NEW ENERGY Co.,Ltd. Address before: Floor 4, Building 1, Software Park, High tech Middle Second Road, Nanshan District, Shenzhen, Guangdong 518057 Patentee before: SHENZHEN KSTAR SCIENCE AND TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |