CN204045601U - Inverter - Google Patents
Inverter Download PDFInfo
- Publication number
- CN204045601U CN204045601U CN201290000927.XU CN201290000927U CN204045601U CN 204045601 U CN204045601 U CN 204045601U CN 201290000927 U CN201290000927 U CN 201290000927U CN 204045601 U CN204045601 U CN 204045601U
- Authority
- CN
- China
- Prior art keywords
- inverter
- generator
- reverse current
- current
- control device
- 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.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/02016—Circuit arrangements of general character for the devices
- H01L31/02019—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02021—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/108—Parallel operation of dc sources using diodes blocking reverse current flow
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- 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
Abstract
There is disclosed herein a kind of inverter, comprise multiple generator terminal (100a-f) for being connected with multiple photovoltaic generator (2) and a direct voltage wiring (120a), the plurality of generator terminal (100a-f) is electrically connected with multiple collective link (105a, 105b) in units of group.These collective links (105a, 105b) each via multiple reverse current diode (130a integrated in this inverter, 130b) be connected with this direct voltage wiring (120a), one can switching regulator bridging element (140a, 140b) be connected in parallel with these reverse current diodes (130a, 130b).
Description
Technical field
The utility model relates to a kind of with can the inverter of reverse-current protection device of bridge joint.
Background technology
Inverter be used for by photovoltaic (PV) generator generate energy, thus the direct current that these generators generate is converted to electrical network compatibility alternating current and by its feed-in one connect electrical network.In this case, the inverter in PV equipment performs multiple-task, and particularly, they also perform necessary defencive function to avoid the infringement that may be caused by these generators.
Can be caused damage by it effect of (such as initiation fire) of these generators is so-called reverse current effect.This may occur in multiple generator when being connected in parallel with each other.If these generators be connected in parallel have visibly different power stage, may occur that the electric current that the generator subgroup be connected in parallel generates flows through another generator instead of flows through this inverter.In this case, may occur following situation: affected generator loading has the electric current of the every other generator in this group, this may cause and be heated to this affected generator up to heat damage.A kind of possibility of this reverse current event is caused to be the partially or completely short circuit of one of these generators.
In background of the present utility model, term " generator " represents a series circuit comprising multiple photovoltaic element (such as independent solar cell or even solar module), and is not intended to the possibility of the parallel circuits of the photovoltaic element got rid of in this generator.
In order to avoid there is the infringement in reverse current situation, in current path, provide reverse current diode to be known, but these reverse current diodes have following shortcoming: have a constant voltage drop at PV equipment run duration across these diodes, this to cause in this PV equipment a constant power loss.It is further known and replace or provide fuse except reverse current diode, this can trigger and can cause destroying generator in more than a sufficiently high situation of current value.But these fuses have once the triggered shortcoming once needing to be replaced afterwards, thus PV equipment or at least affected generator is caused temporarily not to work.
Utility model content
Therefore, an object of the present utility model is to provide a kind of inverter overcoming the shortcoming of known prior art.
This object is realized by an inverter according to feature of the present utility model.
The utility model discloses a kind of inverter, it comprises multiple generator terminal for being connected with multiple photovoltaic generator and a direct voltage wiring, and wherein, the plurality of generator terminal is electrically connected with multiple collective link in units of group,
It is characterized in that,
These collective links are connected with this direct voltage wiring each via multiple reverse current diode integrated in this inverter, and one can be connected with these reverse current diodes in parallels by switching regulator bridging element.
Described below the advantageous embodiment according to inverter of the present utility model.
Each collective link can be connected with one group of three generator terminal.
This bridging element can comprise an insertable wire bridge or a mechanical switch.
This bridging element can comprise an electromechanical switch or a semiconductor switch.
This inverter may further include a polarity inversion protective device, and this protective device can be arranged to for short circuit generator connected with incorrect polarity.
This inverter may further include one can the control device of switching regulator bridging element for controlling this, described control device can be configured for this reverse current diode of bridge joint when this inverter is in a kind of operating state, under this operating state, when an appearance reverse current, an electric current flowing through the independent generator that is connected with these generator terminal can be restricted to a maximum permissible current value of this independent generator.
This control device can be connected with multiple current sensor for carrying out current monitoring at these generator terminal.
This control device can be connected with multiple voltage sensor for monitoring the voltage between generator terminal.
This control device can be connected for the voltage sensor of monitoring across the voltage of these reverse current diodes with multiple.
Multiple generator terminal for connecting photovoltaic generator is comprised according to inverter of the present utility model.The plurality of generator terminal is electrically connected with multiple collective link (collective connection) in units of group.These collective links connect be connected with a direct voltage wiring by multiple reverse current diode, wherein, can by one be connected in parallel can these reverse current diodes of switching regulator bridge element bridges.Bridge joint as a result, avoid the power loss caused due to the voltage drop across these reverse current diodes.Comprise this reverse-current protection device of these reverse current diodes and can being preferably integrated in this case in this inverter by switching regulator bridging element of being associated; consequently, the simple installation of this protective device and easy configuration and reliability service is achieved.
Preferably, only have when (due to running status or Install and configure) ensure that the reverse current exceeding maximum permissible current load capacity may flow through the generator of an independent connection in no instance, bridge joint just can be activated.
If have selected Install and configure, such as based on the quantity of generator and the distribution at obtainable generator terminal place thereof, its mode can not exceed this maximum permissible current load capacity for making, and setter can perform permanent bridge joint that is independent or even all reverse current diodes by corresponding bridging element.This can carry out by means of wire bridge or other mechanical switch.Conceivable is equally with regard to device software, provide multiple suitable parameter, can be managed the permanent activation of corresponding bridging element by these parameters.
In an alternate embodiments, these can have multiple electromechanical switch by switching regulator bridging element, such as relay or semiconductor switch (such as IGBT or field-effect transistor (such as MOSFET or JFET)).
In an advantageous embodiment, can by a control device process integrated in this inverter these can switching regulator bridging element.In this case, when ensureing that independent generator does not transship under excessive reverse current, this control device performs the function activating these bridging elements.Such as, when inverter is in a kind of operating state, this control device can this reverse current diode of bridge joint, under this operating state, when an appearance reverse current, an electric current flowing through the independent generator that is connected with these generator terminal is restricted to a maximum permissible current value of this independent generator, and therefore can not exceed this value
For this purpose, this control device can be connected with multiple current sensor, and these current sensors monitor independent generator or the current value of generating set.Whether this control device determines based on measured current value can when without any this reverse current diode of bridge joint when risk.If such as one of these current sensors detect a reverse current, the bridge joint deexcitation of reverse current diode thus can be suppressed reverse current or it is reduced to a sub-critical values to major general by this control device.
Optionally, or except these current sensors, this control device can be connected with multiple voltage sensor.These voltage sensors can determine the voltage between the collective link of such as two generator terminal or opposed polarity, and can be arranged at upstream or the downstream of these reverse current diodes.Similarly, the voltage drop across this reverse current diode can be monitored.In the case of the latter, control device by interim for this bridge joint deexcitation, thus can realize once significant measurement during measuring.
In a kind of configuration favourable further of the present utility model; this inverter also has a polarity inversion protective device; such as diode; this protective device is arranged between the generator terminal of opposed polarity, and its mode is make a generator connected with incorrect polarity by this polarity inversion protective device short circuit.Even if which ensure that when the generator connected with incorrect polarity, the risk being derived from this PV equipment still can not be there is.
Accompanying drawing explanation
To with the form of accompanying drawing embodiment of the present utility model be shown and it be made an explanation below.In the drawings:
Fig. 1 shows an inverter, has a kind of component arrangements,
Fig. 2 shows first embodiment of the present utility model,
Fig. 3 shows second embodiment of the present utility model, has polarity inversion protective device,
Fig. 4 shows of the present utility model 3rd embodiment, has one for controlling the control device of the bridging element of this reverse-current protection device, and
Fig. 5 shows of the present utility model 4th embodiment, has one for controlling the control device of the bridging element of this reverse-current protection device.
These accompanying drawings are intended to be described the utility model.The type of element, form and arrangement are only an example of the execution mode of the utility model concept, and the theme of embodiment shown by not being intended to limit.According to theme of the present utility model only by the restriction of the wording of claims.
List of numerals
1 inverter
2 generators
10 DC contactor/filter elements
20 reverse-current protection devices
30 intermediate circuits
40 inverter bridge
50 alternating current filters
60 A.C. contactors
70 electrical networks
80 power network wirings
100,100a-f generator terminal
105a, 105b collective link
100a-f generator terminal
The wiring of 120a, 130b direct voltage
130a, 130b reverse current diode
140a, 140b bridging element
150a, 150b polarity inversion protective device
160a, 160b control device
170 current sensors
180a, 180b control line
190 voltage sensors
Embodiment
Fig. 1 shows the design of inverter 1, and multiple generator 2 is connected with this inverter at a join domain 100, thus to energy feeding in this inverter.In this case, generator 2 is divided into two groups (in each case) three generators.Each group is connected with an element 10 in this inverter, and this element has multiple D.C. contactor (if necessary, these D.C. contactors can make these generators and inverter isolate) and/or multiple DC filtering element.Then each group of power generated pass to a public intermediate circuit 30 by a reverse-current protection device 20.This intermediate circuit 30 can have a DC/DC converter (independently not illustrating) for mating with voltage levvl further.Conceivable be equally this two generators 2 have separately one be associated, the special DC/DC converter for mating the corresponding direct voltage of group and the voltage levvl of this public intermediate circuit 30.
This public intermediate circuit 30 is connected with inverter bridge 40 further, and this inverter bridge by the converting direct-current voltage into alternating-current voltage of these generators, and provides this alternating voltage by multiple alternating current filter 50 and an A.C. contactor 60 at a power network wiring 80.It is possible for connecting an electrical network 70 (such as public power supply grid) by this power network wiring 80.This inverter can be form that is single-phase or polyphase inverter, and does not lose any generality.
Fig. 2 illustrates in greater detail an embodiment of inverter 1.In order to simplicity of illustration, many assemblies of the inverter shown in Fig. 1 are omitted.In all cases, one group of three generator terminal 100a, 100b, 100c and 100d, 100e, 100f are connected on collective link 105a, a 105b jointly.Which ensure that the maximum current flowing through the generator that connects is the electric current that other two generators be connected with same collective link generate when there is reverse current.Usually, the existing generator commercially provided can when without any for good and all conducting twice rated current when infringement as reverse current.Therefore it is possible for connecting one group of three generator in the mode of intrinsic safety.Such as, if a generator for good and all conducting can be greater than twice rated current, n times of rated current, be also conceivable for combining more than three generators (reaching n+1 generator in this case) at a collective link.
This collective link 105a, 105b are connected with a direct voltage wiring 120a by reverse current diode 130a, the 130b be associated.The use of two reverse current diodes 130a, 130b avoids following state: when there is reverse current, affected generator extraly by another group generator generate current loading as reverse current.
In all cases, one can switching regulator bridging element 140a, 140b and reverse current diode 130a, 130b arranged in parallel, and at the reverse current diode that closed on off state bridge joint associates respectively.In this case, this bridging element 140a, 140b can be setter can depend on PV equipment configuration use or can such as in the simple wire bridge of device software intrinsic parameter or the form of another permanent switch element.But, this bridging element 140a, 140b can also be by the form of the switch element of inverter active switch, such as electromechanical switch element (such as relay), or the form (form of such as IGBT or field-effect transistor) being thyristor.Even if Fig. 2 shows each reverse current diode 130a, 130b have bridging element 140a, a 140b, corresponding bridging element is equipped with to be conceivable equally for only having part reverse current diode 130a, 130b.
In this case, the generator terminal of common polar (the negative wiring of such as generator) is only had to be equipped with these reverse current diodes 130a, 130b to be enough as protection component.Generator terminal 110a, 110b, 110c of another kind of corresponding polarity do not need special reverse current diode with 110d, 110e, 110f and the direct voltage wiring 120b that can be associated with jointly or is directly connected.
As shown in Figure 3, polarity inversion protective device 150a, 150b can be arranged between multiple generator terminal groups of opposed polarity, and wherein this polarity inversion protective device 150a, 150b can be the form of as directed diode.
Therefore; if such as one generator with reversed polarity is connected between a first generator terminal 100b and the second generator terminal 110b; then this generator will be shorted by this polarity inversion protective device 150b automatically, and result there is the risk stemming from the generator connected with incorrect polarity.
In addition, Fig. 4 show bridging element 140a, 140b can how by control line 180a, 180b by control device 160a, 160b switch be on one's own initiative associated respectively.For this purpose, control device 160a, 160b have with the current sensor 170 be associated separately and are connected, and these current sensor measurements flow through corresponding generator terminal 100a, 100b, 100c and 100d, the electric current of 100e, 100f.Whenever the appearance of the possibility of the feed status instruction reverse current event of the generator determined by these current sensors 170 or even reverse current event, open these bridging element 140a, 140b be associated in this way and the protective effect therefore activating corresponding reverse current diode 130a, 130b is possible.Otherwise this bridging element 140a, 140b controlled device 160a, 160b close, result is that of avoiding across the power loss caused by the voltage drop of these reverse current diodes 130a, 130b.
Fig. 5 shows an embodiment, and in this embodiment, control device 160b monitors the state of inverter by voltage sensor 190 instead of current sensor, and correspondingly drives bridging element 140b by control line 180b.In this case, these voltage sensors can be arranged between the collective link of the upstream of reverse current diode 130b or the opposed polarity in downstream, or they can determine the voltage drop across this reverse current diode 130b.If determine the voltage drop across reverse current diode 130b, then control device 160b can ensure to determine this voltage drop when bridging element 140b opens, and correspondingly drives described bridging element.
Above-described embodiment is only the mode of example, does not limit the utility model.Can modify to it in every way in the scope of claims.
Claims (9)
1. an inverter, comprise multiple generator terminal (100a-f) for being connected with multiple photovoltaic generator (2) and a direct voltage wiring (120a), wherein, the plurality of generator terminal (100a-f) in units of group with multiple collective link (105a, 105b) be electrically connected
It is characterized in that,
These collective links (105a, 105b) each via multiple reverse current diode (130a integrated in this inverter, 130b) be connected with this direct voltage wiring (120a), one can switching regulator bridging element (140a, 140b) be connected in parallel with these reverse current diodes (130a, 130b).
2. inverter as claimed in claim 1, wherein, each collective link (105a, 105b) and one group of three generator terminal (100a-c, 100d-f) connect.
3. inverter as claimed in claim 1 or 2, wherein, this bridging element (140a, 140b) comprises an insertable wire bridge or a mechanical switch.
4. inverter as claimed in claim 1 or 2, wherein, this bridging element (140a, 140b) comprises an electromechanical switch or a semiconductor switch.
5. inverter as claimed in claim 1 or 2; wherein; this inverter comprises a polarity inversion protective device (150a, 150b) further, and this protective device is arranged to the generator (2) connected with incorrect polarity for short circuit one.
6. inverter as claimed in claim 1 or 2, wherein, this inverter comprises one further can switching regulator bridging element (140a for controlling this, control device (160a 140b), 160b), described control device is configured for this reverse current diode of bridge joint (130a when this inverter is in a kind of operating state, 130b), under this operating state, when an appearance reverse current, an electric current flowing through the independent generator that is connected with these generator terminal is restricted to a maximum permissible current value of this independent generator.
7. inverter as claimed in claim 6, wherein, this control device (160a, 160b) is connected with multiple current sensor (170) for carrying out current monitoring at these generator terminal (100a-f).
8. inverter as claimed in claim 6, wherein, this control device (160a, 160b) is connected with multiple voltage sensor (190) for monitoring the voltage between generator terminal.
9. inverter as claimed in claim 6, wherein, this control device and multiple voltage sensor (190) for monitoring the voltage across these reverse current diodes (130a, 130b) connect.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011117178.2 | 2011-10-28 | ||
| DE102011117178A DE102011117178A1 (en) | 2011-10-28 | 2011-10-28 | Inverter with bridgeable reverse current protection device |
| PCT/EP2012/070519 WO2013060604A2 (en) | 2011-10-28 | 2012-10-16 | Inverter with bridgeable reverse current protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045601U true CN204045601U (en) | 2014-12-24 |
Family
ID=47177929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201290000927.XU Expired - Fee Related CN204045601U (en) | 2011-10-28 | 2012-10-16 | Inverter |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN204045601U (en) |
| DE (1) | DE102011117178A1 (en) |
| WO (1) | WO2013060604A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529742A (en) * | 2016-02-18 | 2016-04-27 | 江西洪都航空工业集团有限责任公司 | Environmental overload-resistant reverse isolation-type high-power power supply grid connection control method |
| CN111133650A (en) * | 2017-09-26 | 2020-05-08 | 罗伯特·博世有限公司 | Multi-branch power supply unit for vehicle control device |
| CN116014681A (en) * | 2020-04-13 | 2023-04-25 | 华为数字能源技术有限公司 | Protection device and protection method of photovoltaic power generation system and photovoltaic power generation system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9983024B2 (en) | 2015-02-04 | 2018-05-29 | Solarcity Corporation | Determining a load meter installation location in an energy generation system |
| EP3104485B1 (en) * | 2015-06-09 | 2021-09-22 | CSI Technology Co., Ltd. | Power providing apparatus for use with multiple electricity sources |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02168819A (en) * | 1988-12-22 | 1990-06-28 | Mitsubishi Electric Corp | Dc power source equipment |
| JPH07271459A (en) * | 1994-03-31 | 1995-10-20 | Aiphone Co Ltd | Dc power source feeding circuit |
| US5726505A (en) * | 1995-01-13 | 1998-03-10 | Omron Corporation | Device to prevent reverse current flow, rectifier device and solar generator system |
| JPH11330521A (en) * | 1998-03-13 | 1999-11-30 | Canon Inc | Solar battery module, solar battery array, photovolatic power plant, and method of specifying fault of solar battery module |
| EP2037553A1 (en) * | 2007-09-11 | 2009-03-18 | HaWi Energietechnik AG | Generator connection for a photovoltaic facility |
| JP2009219176A (en) * | 2008-03-07 | 2009-09-24 | Ricoh Co Ltd | Backup power circuit for electronic circuit |
| DE102009020818B4 (en) * | 2009-05-11 | 2011-06-09 | Enwi-Etec Gmbh | Generator connection of a photovoltaic system |
-
2011
- 2011-10-28 DE DE102011117178A patent/DE102011117178A1/en not_active Withdrawn
-
2012
- 2012-10-16 CN CN201290000927.XU patent/CN204045601U/en not_active Expired - Fee Related
- 2012-10-16 WO PCT/EP2012/070519 patent/WO2013060604A2/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529742A (en) * | 2016-02-18 | 2016-04-27 | 江西洪都航空工业集团有限责任公司 | Environmental overload-resistant reverse isolation-type high-power power supply grid connection control method |
| CN111133650A (en) * | 2017-09-26 | 2020-05-08 | 罗伯特·博世有限公司 | Multi-branch power supply unit for vehicle control device |
| CN116014681A (en) * | 2020-04-13 | 2023-04-25 | 华为数字能源技术有限公司 | Protection device and protection method of photovoltaic power generation system and photovoltaic power generation system |
| US11870238B2 (en) | 2020-04-13 | 2024-01-09 | Huawei Digital Power Technologies Co., Ltd. | Protection apparatus and protection method for photovoltaic power generation system |
| CN116014681B (en) * | 2020-04-13 | 2024-02-13 | 华为数字能源技术有限公司 | Protection device and protection method of photovoltaic power generation system and photovoltaic power generation system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013060604A2 (en) | 2013-05-02 |
| WO2013060604A3 (en) | 2013-10-17 |
| DE102011117178A1 (en) | 2013-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5590475B2 (en) | Reverse current sensor | |
| JP6457533B2 (en) | Circuit device for photovoltaic inverter and use of said circuit device for mitigating interruption using a short-circuit switch | |
| US8624437B2 (en) | Power conversion system and method | |
| CN102668305B (en) | Battery energy storage system with short circuit protection, and method | |
| US10734944B2 (en) | Inverter having grid disconnection point and insulation resistance measurement and method for measuring an insulation resistance | |
| CN204045601U (en) | Inverter | |
| CN104919671B (en) | For protecting multiple strings of a photovoltaic generator from the method and apparatus of reverse current | |
| US8897040B2 (en) | Power converter systems and methods of operating a power converter system | |
| US20130222951A1 (en) | Fault protection circuit for photovoltaic power system | |
| US9509231B2 (en) | Power converter system, damping system, and method of operating a power converter system | |
| JP2014509176A (en) | Protection device for photovoltaic system | |
| CN110463040A (en) | For controlling method, dc switch and the direct voltage system of dc switch | |
| JP2013534125A (en) | Method and photovoltaic installation for limiting the generator voltage of photovoltaic installations in hazardous situations | |
| EP3284169B1 (en) | Wind turbine converter control | |
| US9735777B2 (en) | Disconnection of solar modules | |
| CN108370221A (en) | Power inverter | |
| US11870238B2 (en) | Protection apparatus and protection method for photovoltaic power generation system | |
| US9692227B2 (en) | DC supply unit for a power provision unit | |
| CN203722250U (en) | Photovoltaic device | |
| WO2013046658A1 (en) | Switching apparatus and power storage system | |
| AU2018351679A1 (en) | Battery system, local electrical grid and disconnector | |
| JP2012249451A (en) | Power conversion apparatus | |
| JP2014239562A (en) | Switch device and power storage system |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20211016 |