CN102170167A - Device for providing DC (direct-current) voltage for DC voltage bus through line parallel and electrical connection of photoelectric modules - Google Patents
Device for providing DC (direct-current) voltage for DC voltage bus through line parallel and electrical connection of photoelectric modules Download PDFInfo
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- CN102170167A CN102170167A CN2010101258703A CN201010125870A CN102170167A CN 102170167 A CN102170167 A CN 102170167A CN 2010101258703 A CN2010101258703 A CN 2010101258703A CN 201010125870 A CN201010125870 A CN 201010125870A CN 102170167 A CN102170167 A CN 102170167A
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to a device at least comprising a first photoelectric module and a second photoelectric module which are lined. The first photoelectric module and the second photoelectric module are electrically connected in parallel and arranged to provide a DC (direct-current) voltage for a voltage bus. In addition, the invention also discloses an electrical connection device which is connected to the photoelectric modules. The electrical connection device comprises a first contact point, a second contact point, a third contact point and a fourth contact point, wherein the first and second contact points are used for receiving a first DC voltage from the photoelectric modules; and the third contact point and the fourth contact point are electrically connected in parallel and then connected to a DC voltage bus as well as used for providing a second DC voltage for the DC voltage bus in accordance with the first DC voltage.
Description
Technical field
The present invention relates to the field of optical-electric module, such as solar module.More specifically, the present invention relates to effectively to gather in the crops photoelectric energy and be used for this Energy Efficient is offered energy demand equipment, especially in local environment.
Background technology
In recent years, directly solar energy converting is become the solar cell of electric energy to be contemplated to day by day, particularly from the viewpoint of global environment problem as the energy of future generation.In various types of solar cells, in the solar cell that uses mixed semiconductor or organic material, main use is the solar cell that utilizes silicon crystal recently.Yet, worked out other material synthetic and provable they can advantageously obtain using in the future.
DE 40 32 569 discloses a kind of electro-optical system, and this system comprises the solar energy generator that has a plurality of modules of embarking on journey that are connected in series, and a plurality of row therein can be arranged in parallel.In each module, provide DC/AC transducer, convert the AC feed voltage of major network with the dc voltage that allows to obtain to.Electro-optical system is coupled to major network via central monitoring and control appliance, and central monitoring and control appliance receive data via public data/address bus from each module.
The shortcoming of the electro-optical system of background technology is, the efficient of the whole module column of the module that the efficient in tandem arrangement is minimum (for example temporarily being covered owing to this module) decision.And, be necessary for each module DC/AC is provided transducer.
Summary of the invention
A target of the present invention provides has the electrooptical device that improves efficient.
A kind of first optical-electric module of embarking on journey and device of second optical-electric module of comprising at least disclosed.First optical-electric module and the parallel connection of second optical-electric module are electrically connected and will be aligned to voltage bus dc voltage is provided.
In addition, the electric connecting device that is configured to be connected to optical-electric module is disclosed.Electric connecting device comprises and is used for receiving first and second contacts of first dc voltage and being configured to be connected to third and fourth contact that the dc voltage bus is used for providing to the dc voltage bus according to first dc voltage second dc voltage from optical-electric module.
In addition, disclose a kind of method that electrooptical device is installed, this electrooptical device comprises first and second optical-electric modules and dc voltage bus at least.The first and second optical-electric module parallel connections are electrically connected to the dc voltage bus.
By in optical-electric module is capable, being arranged in parallel first and second optical-electric modules, compare with the row that is electrically connected in series all optical-electric modules therein, in these optical-electric modules that are connected in parallel one or boths' minimizing efficient has less influence to the gross efficiency of whole photoelectricity module column.Being connected in parallel like this is easy to use connection device to obtain.And, be used for the dc voltage parallel bus that these modules discharge the DC photoelectric energy that is produced and eliminated the demand of each module the DC/AC transducer.From the viewpoint of this device is installed, the dc voltage bus has reduced the common required wiring amount of the optical-electric module that is connected in series of background technology.Compare with AC voltage, dc voltage is simple and effective when handling.
One embodiment of the present of invention provide such advantage: only need single inverter the dc voltage of voltage bus to be converted to the AC voltage of AC major network.
An alternative embodiment of the invention provides a kind of easy means that a plurality of optical-electric modules is parallel-connected to the dc voltage bus.Electric connecting device or can be the card module of optical-electric module or can be integrated in the optical-electric module.
Another embodiment of the present invention provides a kind of first dc voltage (for example 0-100V, particularly 20-80V) that is used for being provided by each optical-electric module to bring up to the effective ways of second dc voltage (for example 400V) of dc voltage bus.Actual gain is about 2-5%.The switching regulator coil (switched-coil) of transformer device is also referred to as switching automatic device for transformer sometimes, provides the induction of minimizing to leak and thereby improves the efficient of DC-DC voltage transitions significantly.Particularly, these coils can be the flatwise coils that comprises the planar ferrite magnetic core.Switch can be (MOS) FET or IGBT, is used for further reducing loss.The control of switch can be used for further raising the efficiency, for example by coming manipulation of switches with combination frequency and pulse-width modulation handover scheme.
An alternative embodiment of the invention provides a kind of instantaneous dc voltage that is used to use measured dc voltage bus to determine whether energy is offered the method for dc voltage bus.Claim 6 and 12 is provided for controlling the suitable and effective dc voltage scope of this device.
Can in connection device, realize some functions.
The supply socket tracker monitors that the voltage and current by the optical-electric module supply is in and is used to obtain within the optimum range of best photoelectric conversion efficiency.
In optical-electric module, particularly in the contact, can form spark, for example in the situation of bad contact is arranged.Spark can cause focus and can cause subsequently catching fire.Be sent to external control system by measuring temperature (for example temperature of first and second contacts of connection device) and/or other characteristic and should measuring communication, forbid to preventability indivedual optical-electric modules or connection device and catch fire avoiding.As the result who is connected in parallel to the dc voltage bus, the forbidding of optical-electric module just damages the gross efficiency of the row that comprises disabled optical-electric module slightly to some extent.
The available wireless mode offers external system with measurement and other data of each optical-electric module, for example uses ZigBee.The photoelectricity connection device can comprise wireless transceiver, is used to send data and receives order from external system.The connection device of optical-electric module and/or these modules also can intercom mutually by the mesh network of setting up among a small circle.
An alternative embodiment of the invention is based on following opinion: (family expenses) utensil of quite big quantity can use dc voltage input (for example comprising those inputs of switched-mode power supply) work and therefore not need the DC-AC transducer by directly utensil being connected to the dc voltage bus.
Hereinafter, with embodiment of the present invention will be described in more detail.Yet should be appreciated that the protection range that these embodiment can not be construed as limiting the invention.
Description of drawings
In the accompanying drawings:
Fig. 1 is the schematic diagram that is connected to the system of the energy supply device of dc voltage bus and energy demand device;
Fig. 2 is the schematic diagram of the continuation energy supply of Fig. 1, and it comprises the electrooptical device of the optical-electric module that is connected to the dc voltage bus;
Fig. 3 is optical-electric module and the schematic diagram that is used for these modules are connected to the connection device of dc voltage bus;
Fig. 4-6 illustration is used to increase the various embodiment of parts of electronic circuit of the dc voltage of optical-electric module;
Fig. 7 provides the schematic example that optical-electric module is connected to the dc voltage bus that comprises the DC/AC transducer; And
Fig. 8 A and 8B provide the optical-electric module of system of Fig. 1 and the work sheet of DC/AC transducer.
Embodiment
Fig. 1 is the schematic diagram of distribution network system 1 that comprises a plurality of energy supply devices (equipment) or source, a plurality of energy demand device (equipment) and connect the dc voltage bus 2 of energy supply device and energy demand device.In addition, system 1 comprises the Control Network 3 that is connected to energy supply device and energy demand device equally.Control Network 3 can be that power supply connects (power connection).Control Network 3 can be independent of dc voltage bus 2 or be integrated in the dc voltage bus 2, and is used to provide energy to energy supply to communicate by letter with the energy demand device with the energy demand device and/or with the energy supply, as will be described in more detail below.
Energy supply device preferably comprises continuation energy feeding mechanism, comprises electrooptical device, wind energy plant and/or fuel-cell device.Present patent application mainly concentrates on the photoelectricity feeding mechanism that comprises one or more solar modules.
The energy demand device comprises the equipment that can move in the dc voltage input of dc voltage bus, comprise computer, light source, TV or the like.Usually, the equipment that comprises switch mode power can move with dc voltage.Save electric energy with the dc voltage operational outfit, can save the life-span of specific components (for example capacitor) or increase specific components simultaneously.
The miscellaneous equipment that moves on the dc voltage of dc voltage bus comprises EMS, large-scale inverter system, island formula inverter system (be used for independent AC power supplies, typically be used for providing in the part AC power) and bidirectional active DC/AC electric bridge.EMS is configured to by Control Network 3 or management energy supply wirelessly and needs at least a in the device.Particularly, EMS can be used for vetoing the judgement that maybe needs device inside to make by the energy supply, and whether a for example relevant device can provide and/or need energy voltage bus.Inverter is used for dc voltage is converted to the AC voltage of AC major network 4.The bidirectional active electric bridge also can be with the AC voltage transitions of AC major network to the dc voltage bus, as the reserve when the energy supply can't provide enough power for the DC bus.
Yet distribution network system 1 also comprises and is configured to the energy supply device that is used for interim storage of electrical energy and is used for releasing energy for the energy demand device in follow-up phase.In Fig. 1, these energy supply devices comprise super capacitor (super capacitor) and battery.Super capacitor is used in during the limited time period supply from the instantaneous peak energy needs of energy demand device.
The dc voltage bus 2 of network system 1 can present a plurality of dc voltage states.Energy supply device and energy demand device are configured to the dc voltage state of sensing DC voltage bus 2, and are configured to adjust the energy supply, promptly correspondingly adjust the energy requirement to the sensing DC voltage status.This sensing is for continuation energy feeding mechanism advantageous particularly, because this type of device characterization is uncertain behavior.It is directly visible that the dc voltage state of dc voltage bus 2 needs the device both for energy supply device and DC.To the supply of dc voltage bus or need the judgement of energy can be by the rejection of as shown in Figure 1 EMS.
As an example, energy supply device can comprise microprocessor, and this microprocessor is connected so that the dc voltage of dc voltage bus can be detected and detected voltage compared with preset reset voltage level.For example, if the dc voltage that detects dc voltage bus 2 in maximum for example between the dc voltage of the dc voltage of 400Vdc and minimum for example 360Vdc, supplying energy then.Other lifts an example, if the energy demand device can be configured to detected dc voltage less than minimum for example 360Vdc dc voltage do not require energy to dc voltage bus 2.Lift an example again, be configured to store and the energy supply device that releases energy can be programmed to release energy immediately during less than specific threshold at the dc voltage of voltage bus 2.Energy supply device and energy demand device all do not require the special inverter that depends on the supply or need type of device.
In addition, if energy demand device energy surplus so just can provide back these energy dc voltage bus 2.Certainly, this class energy demand device must be configured to the dc voltage state of sensing DC voltage bus 2, and is configured to according to as above about the described sensing DC voltage status of energy supply device excess energy being supplied to the dc voltage bus.Owing to very strict restriction and the complicated electronic installation that energy back are returned the AC major network, more than operation generally is impossible for this type of AC major network.
Dc voltage bus 2 can be transmitted the power (see figure 2) of 4-8kW for the optical-electric module 10 of embarking on journey.This class voltage bus is particularly useful in local environment (as house, steamer, office etc.).If this class dc voltage bus 2 is provided, just can minimize the use of AC major network.
Fig. 2 and 3 provides the schematic diagram of photoelectricity (PV) energy supply device that comprises a plurality of optical-electric modules 10 and dc voltage bus 2.Control Network 3 is integrated in (see figure 3) in the dc voltage bus 2.Optical-electric module 10 comprises a plurality of solar cells 11 separately and uses connection device 12 to be connected to dc voltage bus 2.Optical-electric module 10 is connected to dc voltage bus 2, so that these modules are arranged in parallel.Compare with the existing apparatus of all optical-electric modules that in the optical-electric module of embarking on journey, are connected in series, by be arranged in parallel optical-electric module 10 in optical-electric module is capable, the efficient reduction of an optical-electric module in these optical-electric modules that are connected in parallel 10 has less influence to the capable gross efficiency of whole optical-electric module.
Particularly, provide connection device 12 for each optical-electric module 10.Connection device 12 comprises the first and second contact I, the II that is used to be connected to the PV module, and the third and fourth contact III, the IV that are used for the PV module is connected to dc voltage bus 2, makes the optical-electric module 10 that is relative to each other be electrically connected by in parallel.Contact V is used to be connected to Control Network 3.
Usually, PV module 10 generates dc voltage (generally between 0-100V, for example between 20-80V) in response to the radiation that solar cell 11 receives.Connection device 12 is the dc voltage of dc voltage bus 2 with this boost in voltage, for example to 400Vdc, as illustrating in greater detail with reference to figure 4-7 below.
The dc voltage bus 2 that is used for the DC photoelectric energy of module 10 release generations has been eliminated at the needs that will supply 10 pairs of DC/AC transducers of each module under the AC voltage condition.Single DC/AC transducer 13 (for example the large scale system inverter of Fig. 1, island formula inverter or two-way electric bridge inverter) can be connected to dc voltage bus 2 so that 400Vdc is converted to the 230Vac of major network.DC shunt voltage bus 2 has reduced the existing optical-electric module that is connected in series required wiring amount usually.
Use connection device 12 that PV module 10 is connected to dc voltage bus 2 in the mode in parallel with other PV module 10.Except other function, also use connection device 12 with the boost in voltage of PV module 10 suitable voltage as shunt voltage bus 2.
In Fig. 4, it should boostedly be the dc voltage of for example 24V of 400Vdc that PV module 10 generates.Higher voltage is general supports lower electric current, and reduces the wastage thus.
Microprocessor uC monitors that electric Vin of input and input current Iin are used for the supply socket tracker function.Microprocessor uC monitors that also output voltage V out and output current Iout are used to monitor power output and are used for security purpose.Microprocessor uC monitors that also the dc voltage Vdcbus of dc voltage bus 2 is so that the switching of control switch S.If the voltage of bus 2 is 400Vdc, then press the determined like that no longer supplying energy of preset reset voltage level among the microprocessor uC.Connection device 12 uses locally supplied power source unit (i.e. the local PSU of appointment) work, and this unit is connected to form Control Network 3 via contact IV and V.It (just is connection device 12 power supplies under the situation for example-48V) that local PSU has receive suitable voltage by contact IV, V.Otherwise switch S disconnects and not to voltage bus 2 supplying energies.
The boosting efficiency that can be obtained by the embodiment of the connection device of Fig. 4 approximately is 80%.
Can replace the electronic circuit of Fig. 5 of Fig. 4 complete coil H to obtain bigger efficiency gain by using by the split coil device for transformer." coil 1 " in the coil and " coil 2 " can be the flat magnetic core coils that comprises the planar ferrite magnetic core that is separated by capacitor C3.The plane assembly allows integrated these assemblies after PV module 2.Be provided with switch once more in order to electric charge is drawn into capacitor C2 from capacitor C1, and can use treatment facility uC to control this switch (not shown in Figure 5, as to see Fig. 4).Allow energy remaining to flow to capacitor C2 when the switch off state via the current path of D2, D3 between coil 1 and the capacitor C2.The control of switch can be used for further promoting efficient, for example by coming manipulation of switches with combination frequency and pwm switch scheme.Typical switching frequency changes between 20-70kHz.Microprocessor can further be carried out and the identical function for monitoring of discussing with reference to figure 4.
Can be approximately 97% at the 180W place by the boosting efficiency that planar ferrite magnetic core split coil transformer obtains.
Attention can use other method to be used for increasing the dc voltage of PV module 10.For example, can use the switched capacitor type device.Yet this class device is general to require to take more measure to be used for control output voltage and generally too short in the life of capacitors expection at relevant power place.
In the connection device 12 of Fig. 4 and Fig. 5, can realize some other functions.Certainly, these function required powers and can reduce the efficient of PV module/connection device 12 combination.
Microcontroller uC can comprise the supply socket tracker, and Vin by measuring PV module 10 and Iin monitor whether the power that is obtained is in and be used to obtain within the optimum range of best photoelectric conversion efficiency.
In addition, in optical-electric module 12, especially, when the situation of for example bad contact, can form spark at contact I, II and III, IV place.Spark can cause focus and can cause subsequently catching fire.Temperature (for example first and second contact I of connection device, the temperature of II) and/or other characteristic can use spark tester to measure in conjunction with the microcontroller uC shown in Fig. 4.In each connection device 12, be provided with spark tester.Spark tester comprises the circuit that is configured to detect the spark in the main current loop of single PV module 10.
This measurement can be transferred into outside control system (for example EMS among Fig. 1 or other surveillance) and can prophylactically forbid indivedual optical-electric modules 10 or connection device 12 catches fire avoiding.But the instruction internally-originated (for example being derived from microprocessor) of forbidding optical-electric module 10 or outside (for example being derived from surveillance).As the result who is connected in parallel to dc voltage bus 2, the forbidding of this optical-electric module 10 is very little to the infringement of the gross efficiency of the row that comprises disabled optical-electric module 10.
Can use ZigBee for example that measurement and other data (electric current, voltage, power, state) of each optical-electric module 10 are wirelessly transmitted to external system (central gateway).Trooping of photoelectricity PV module 10/ connection device 12 can be communicated by letter with specific central gateway.Connection device 12 can comprise the wireless transceiver that is used to send data and receives order from external system.The connection device 12 of optical-electric module 10 and/or these modules 10 also can intercom mutually by the mesh network of setting up among a small circle.Can monitor the performance of single PV module 10, and if desired, can be it service is provided.
Microcontroller uC, measuring circuit, spark tester and/or radio transmitters or transceiver also can be the parts of the connection device 12 of Fig. 5.
Can on the printed circuit board (PCB) in the connection device 12, be provided with microcontroller uC, measuring circuit, spark tester and/or radio transmitters or transceiver.
Should be noted that and to replace microcontroller to use other controller.
Fig. 6 illustrates the block diagram of PV module 10 and connection device 12, and connection device 12 provides a plurality of contact I, II in batch solar cell 11 parallel connections therein.Each batch comprises that 10-15 solar cell 11 is to provide the dc voltage of 7-14Vdc.Use the split coil device for transformer of Fig. 5 this dc voltage to be boosted to 400Vdc respectively for each batch.As a result, provide bypass by diode no longer needing in the PV module of prior art, to observe usually, as by among Fig. 6 shown in the fork on diode.By eliminating the demand to bypass diode, the potential source that has increased conversion efficiency and eliminated defective and fire.
Microprocessor control switch S determines whether that the dc voltage of the 400V that will boost is supplied to contact III, IV and thereby is supplied to voltage bus 2.Is connection device 12 power supplies by contact IV and V from the DC/AC transducer that for example is connected to dc voltage bus 2, as among Fig. 7 shown in the complete PV module 10.For example, contact IV at the current potential of-48V and contact V at the about current potential (thereby if the dc voltage bus should be at the 400V place, then contact II is at current potential place of 352V) of 0V.If there is not voltage to be applied on the contact IV and V of connection device 12, then the switch S acquiescence disconnects.
More specifically obtain the power of locally supplied power source via the circuit of relevant controlling network 3 via dc voltage bus 2 from DC/AC transducer 13 as shown in Figure 7.This Control Network also can be used for communication and safety (for example UOVP: low-voltage and overvoltage protection).Can be at (for example Ethernet) modulation dc voltage of communicating by letter between connection device 12 and the inverter.In addition, contact V also can be used as safety contact (closing earlier disconnected (last make, first break) for example) to forbid connection device 12 till contact III, IV are connected by safety.Contact V can be the individual pin in for example contact III or IV.
The work sheet of Fig. 8 A and 8B difference illustration PV module 10/ connection device 12 and inverter 13.If the dc voltage of dc voltage bus 2 adds up to 400Vdc, then reach maximum voltage and energy and can be used for the energy demand device.This state of dc voltage bus is by energy demand device sensing.These energy demand devices can comprise that microprocessor comes this state of sensing and control to be used to be connected to dc voltage bus 2 to receive the switch of dc voltage.On the other hand, if the dc voltage bus is 400V, then energy supply device senses bus no longer needs energy, makes the microprocessor uC cut-off switch S of Fig. 6 for example and no longer energy is supplied to dc voltage bus 2 (suppose super capacitor and battery also completely) from PV module 10.If the voltage on the dc voltage bus 2 is 380V, then energy supply device and energy demand device all respectively supplying energy, absorb energy from dc voltage bus 2, as by these device sensings by dc voltage states of dc voltage bus 2 with signal indication.If the dc voltage of bus 2 is 360V, then the load of bus 2 is that maximum and energy demand device sensing are no longer from dc voltage bus 2 draw power.Energy if desired, then the two-way electric bridge transducer of the AC/DC of Fig. 1 can be used for obtaining dc voltages from AC major network 4 in dc voltage bus 2.
As observing from Fig. 8 B, the DC/AC conversion of transducer 13 is designed to the maximum of 380V.Certainly, transducer also can be designed to have the maximum conversion on the gamut of 360-400V.
Claims (19)
1. one kind comprises first optical-electric module of embarking on journey and the device of second optical-electric module at least, and described first optical-electric module and second optical-electric module be in parallel to be electrically connected and to be arranged as to voltage bus provides dc voltage.
2. device as claimed in claim 1 also comprises the DC/AC transducer that is connected to described voltage bus, is used to receive the described dc voltage of described first optical-electric module and described second optical-electric module and is used for converting described dc voltage to AC voltage.
3. device as claimed in claim 1 or 2, wherein said first optical-electric module comprises that first connection device and described second optical-electric module comprise second connection device, described first connection device and described second connection device be configured to be used for described first optical-electric module and described second optical-electric module respectively parallel connection be electrically connected to described dc voltage bus.
4. device as claimed in claim 3, at least one in wherein said first connection device and described second connection device comprises the DC boost converter that is used for providing to described voltage bus described dc voltage.
5. device as claimed in claim 4, wherein said DC boost converter comprises the transformer with switching regulator coil device.
6. device as claimed in claim 3, in wherein said first connection device and described second connection device at least one comprises transducer, and described transducer is configured to be used for the dc voltage state of the described voltage bus of sensing and is used for supplying described dc voltage according to described dc voltage state to described voltage bus.
7. device as claimed in claim 6, wherein said transducer are the microprocessors that comprises sensing software.
8. device as claimed in claim 6, wherein said voltage bus is configured to work in the dc voltage state range of 360-400V, and wherein said transducer only is configured to dc voltage at sensing and just supplies described dc voltage within described dc voltage state range the time.
9. device as claimed in claim 4, at least one in wherein said first connection device and described second connection device comprise at least one in following:
-supply socket tracker is used to follow the tracks of described first and/or the best operating point of second optical-electric module;
-spark tester; And
-wireless radio-frequency communication module.
10. device as claimed in claim 1, wherein said voltage bus are electrically connected at least one energy demand equipment in order to provide described dc voltage to described energy demand equipment.
11. comprising, an electric connecting device that is configured to be connected to optical-electric module, described electric connecting device be used for receiving first contact and second contact of first dc voltage and being configured to be electrically connected to the dc voltage bus so that second dc voltage is offered the 3rd contact and the 4th contact of described dc voltage bus according to described first dc voltage from described optical-electric module.
12. electric connecting device as claimed in claim 11 also comprises the DC boost converter that is used for described first dc voltage is converted to described second dc voltage, described second dc voltage is higher than described first dc voltage.
13. electric connecting device as claimed in claim 12, wherein said DC boost converter comprises the transformer with switching regulator coil device.
14. as claim 11 or 12 described electric connecting devices, wherein said connection device comprises transducer, and described transducer is configured to the dc voltage state of the described voltage bus of sensing and according to described dc voltage state described second dc voltage is supplied to described voltage bus.
15. electric connecting device as claimed in claim 14, wherein said transducer are the microprocessors that comprises sensing software.
16. electric connecting device as claimed in claim 14, wherein said voltage bus is configured to work in the dc voltage state range of 360-400V, and wherein states transducer and only be configured to dc voltage at sensing and just supply described dc voltage within described dc voltage state range the time.
17. electric connecting device as claimed in claim 11, wherein said connection device comprise at least one in following:
-supply socket tracker is used to follow the tracks of the best operating point of described optical-electric module;
-spark tester; And
-wireless radio-frequency communication module.
18. an installation comprises the method for the electrooptical device of first optical-electric module, second optical-electric module and dc voltage bus at least, described method comprises the following steps:
-the described first optical-electric module parallel connection is electrically connected to described voltage bus;
-the described second optical-electric module parallel connection is electrically connected to described voltage bus.
19. method as claimed in claim 18, wherein said device also comprise first connection device and second connection device, described method comprises the following steps:
-first contact and second contact of described first connection device is connected to described first optical-electric module to obtain first dc voltage from described first optical-electric module;
-the 3rd contact and the 4th contact parallel connection of described first connection device is electrically connected to described dc voltage bus to provide second dc voltage to described dc voltage bus;
-first contact and second contact of described second connection device is connected to described second optical-electric module to obtain the 3rd dc voltage from described second optical-electric module; And
-the 3rd contact and the 4th contact parallel connection of described second connection device is electrically connected to described dc voltage bus to provide the 4th dc voltage to described dc voltage bus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101258703A CN102170167A (en) | 2010-02-25 | 2010-02-25 | Device for providing DC (direct-current) voltage for DC voltage bus through line parallel and electrical connection of photoelectric modules |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101258703A CN102170167A (en) | 2010-02-25 | 2010-02-25 | Device for providing DC (direct-current) voltage for DC voltage bus through line parallel and electrical connection of photoelectric modules |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112586100A (en) * | 2018-08-09 | 2021-03-30 | 艾思玛太阳能技术股份公司 | Intermediate circuit device and inverter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002238246A (en) * | 2001-02-14 | 2002-08-23 | Sharp Corp | Booster unit, power conditioner, and photovoltaic power generation system |
| DE10136147B4 (en) * | 2001-07-25 | 2004-11-04 | Kolm, Hendrik, Dipl.-Ing. | Photovoltaic alternator |
| US20050121067A1 (en) * | 2002-07-09 | 2005-06-09 | Canon Kabushiki Kaisha | Solar power generation apparatus, solar power generation system, and method of manufacturing solar power generation apparatus |
| US20080097655A1 (en) * | 2006-10-19 | 2008-04-24 | Tigo Energy, Inc. | Method and system to provide a distributed local energy production system with high-voltage DC bus |
-
2010
- 2010-02-25 CN CN2010101258703A patent/CN102170167A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002238246A (en) * | 2001-02-14 | 2002-08-23 | Sharp Corp | Booster unit, power conditioner, and photovoltaic power generation system |
| DE10136147B4 (en) * | 2001-07-25 | 2004-11-04 | Kolm, Hendrik, Dipl.-Ing. | Photovoltaic alternator |
| US20050121067A1 (en) * | 2002-07-09 | 2005-06-09 | Canon Kabushiki Kaisha | Solar power generation apparatus, solar power generation system, and method of manufacturing solar power generation apparatus |
| US20080097655A1 (en) * | 2006-10-19 | 2008-04-24 | Tigo Energy, Inc. | Method and system to provide a distributed local energy production system with high-voltage DC bus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112586100A (en) * | 2018-08-09 | 2021-03-30 | 艾思玛太阳能技术股份公司 | Intermediate circuit device and inverter |
| CN112586100B (en) * | 2018-08-09 | 2022-10-21 | 艾思玛太阳能技术股份公司 | Intermediate circuit device and inverter |
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Application publication date: 20110831 |