CN202068352U - Anti-countercurrent solar photovoltaic power supply system - Google Patents
Anti-countercurrent solar photovoltaic power supply system Download PDFInfo
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- CN202068352U CN202068352U CN201120180606XU CN201120180606U CN202068352U CN 202068352 U CN202068352 U CN 202068352U CN 201120180606X U CN201120180606X U CN 201120180606XU CN 201120180606 U CN201120180606 U CN 201120180606U CN 202068352 U CN202068352 U CN 202068352U
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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
Abstract
The utility model provides an anti-countercurrent solar photovoltaic power supply system. The anti-countercurrent solar photovoltaic power supply system and a power grid are connected to a user load after being connected in parallel at a parallel node, and an electric meter is connected between the power grid and the parallel node in a crossing way, the anti-countercurrent solar photovoltaic power supply system comprises a plurality of direct current photovoltaic components and component inverters which are respectively connected with the direct current photovoltaic components, and alternating current outputs of the component inverters are connected with the user load after being mutually connected in series. The characteristics are as follows: the anti-countercurrent solar photovoltaic power supply system also comprises an anti-countercurrent controller which is connected in parallel with a line between the power grid and the parallel node. The anti-countercurrent controller comprises a current detector and an anti-countercurrent controller main body, wherein the current detector is connected to the line between the power grid and the parallel node and is used for detecting a current flowing through the electric meter and generating a countercurrent signal; and the anti-countercurrent controller main body is connected to the current detector and is used for generating an anti-countercurrent control signal according to the countercurrent signal and sending the anti-countercurrent control signal to the component inverters. With the adoption of the anti-countercurrent solar photovoltaic power supply system, for a user still using the traditional electric meter, a reading number of the electric meter can be avoided adding, and the electric cost loss of the user is eliminated.
Description
Technical field
The utility model relates to the photovoltaic sciemtifec and technical sphere, and specifically, the utility model relates to the solar photovoltaic powered system of a kind of anti-adverse current.
Background technology
The inverter of solar photovoltaic generation system trends towards adopting distributed micromodule inverter recently.The assembly inverter provides the maximum power point control to each direct current photovoltaic module, thereby makes each direct current photovoltaic module produce maximum energy, improves the performance of whole solar photovoltaic generation system.In addition, the assembly inverter can also produce AC low-tension output, rather than the output of the High Level DC Voltage of center type inverter system, has improved the fail safe and the operating efficiency of system.
Fig. 1 is the frame structure schematic diagram of a solar photovoltaic powered system in the prior art.As shown in the figure, this electric power system 100 generally comprises at least: a plurality of direct current photovoltaic modulies 101 are used to utilize solar energy to produce direct current; A plurality of assembly inverters 102 are connected with separately direct current photovoltaic module 101 respectively, are used for converting direct current to alternating current.The connection that is one another in series is exported in the interchange of each assembly inverter 102, is connected to the local circuit that comprises user load 103 with electrical network 105 after interlink is put 106 parallel connections in the lump then.Be that user load 103 can be from 100 power takings of solar photovoltaic powered system, also can be directly from electrical network 105 power takings.Wherein, going back cross-over connection between electrical network 105 and the sys node 106 has ammeter 104, is used for metering reading.
When only using common electrical network 105, the user is from electrical network 105 power takings, and electric current is that ammeter 104 is flow through in following current.When using grid-connected system, during for example solar photovoltaic powered system 100, when the photovoltaic generation electric current was less than subscriber's local electricity consumption electric current, user load 103 was from electrical network 105 power takings, and the sense of current is following current; When photovoltaic generation electric current during more than subscriber's local electricity consumption electric current, solar photovoltaic powered system 100 send electricity toward electrical networks 105, and the sense of current changes adverse current into.
For the user who uses special-purpose solar photovoltaic powered system intelligence ammeter, when the photovoltaic generation electric current is less than subscriber's local electricity consumption electric current, user load 103 is from electrical network 105 power takings, and increasing with electric reading of ammeter 104 represents that the user consumes electric power from electrical network 105.And when photovoltaic generation electric current during more than subscriber's local electricity consumption electric current, solar photovoltaic powered system 100 is except supply user load 103 is consumed for it, also can send electricity to electrical network 105, this moment, ammeter 104 usefulness electric readings reduced, and the user is to electrical network 105 compensates electric in expression.But for the user who still uses traditional ammeter, even when solar photovoltaic powered system 100 past electrical networks 105 send electricity, when promptly the sense of current was adverse current, ammeter 104 usefulness electric readings but still increased.This not only can't represent the fact of user to electrical network 105 compensates electric, also can cause demand charge to increase on the contrary.At this moment,, need avoid sending electricity, prevent that just the sense of current from being the situation of adverse current to electrical network 105 for the user who still uses traditional ammeter.
Summary of the invention
Technical problem to be solved in the utility model provides the solar photovoltaic powered system of a kind of anti-adverse current, for the user who still uses traditional ammeter, prevents that the sense of current from being adverse current.
For solving the problems of the technologies described above, the utility model provides a kind of anti-adverse current solar photovoltaic powered system, it is being connected to user load after parallel connection of interlink point in the lump with electrical network, cross-over connection has ammeter between described electrical network and the sys node, described solar photovoltaic powered system comprises a plurality of direct current photovoltaic modulies and the assembly inverter that is connected with each direct current photovoltaic module respectively, after being one another in series, the interchange output of each assembly inverter is connected with described user load, described solar photovoltaic powered system also comprises the anti-reverse stream controller on the circuit that is parallel between described electrical network and the sys node, and described anti-reverse stream controller comprises:
Current detector is connected on the circuit between described electrical network and the sys node, detects the electric current of the described ammeter of flowing through and produces the adverse current signal;
Anti-reverse stream controller main body is connected with described current detector, produces anti-reverse flow control signals and sends to described assembly inverter according to described adverse current signal.
Alternatively, described anti-reverse stream controller main body comprises:
The adverse current detection circuit is connected with described current detector, judges whether to take place flow reversal conditions according to described adverse current signal, the circuit module of triggering following when flow reversal conditions takes place;
The adverse current control circuit is connected with described adverse current detection circuit, produces anti-reverse flow control signals when flow reversal conditions takes place;
Anti-reverse stream communication circuit is connected with described adverse current control circuit, and described anti-reverse flow control signals is sent to described assembly inverter, requires reduction or closes some or the interchange of all components inverter output.
Alternatively, described anti-reverse stream controller main body also comprises:
Recover timer, be connected, notify described adverse current control circuit to produce anti-adverse current erasure signal every one first scheduled time with described adverse current control circuit.
Alternatively, described assembly inverter comprises:
Power conversion circuit is connected with output cable with each direct current photovoltaic module respectively, exports after direct current is converted to alternating current;
Supervisory circuit is connected in parallel with described power conversion circuit, monitors the parameters of electric power of described power conversion circuit both sides;
Telecommunication circuit is connected with output cable with described supervisory circuit respectively, receives described anti-reverse current control/erasure signal from described anti-reverse stream controller, perhaps sends feedback signal to described anti-reverse stream controller;
Control circuit is connected with described power conversion circuit, supervisory circuit and telecommunication circuit respectively, reduces or close/raise or open the interchange output of described assembly inverter according to described anti-reverse current control/erasure signal.
Alternatively, described assembly inverter also comprises:
Timing recovery circuit is connected with described control circuit, after the interchange output of described assembly inverter was lowered or closes one second scheduled time, and the interchange output of notifying described control circuit to raise or opening described assembly inverter.
Alternatively, the communication mode between described anti-reverse stream controller and the assembly inverter is wire communication mode or communication.
Alternatively, described wire communication mode is the power line carrier communication mode.
Alternatively, described communication is Wi-Fi, Zigbee or GPRS communication mode.
Alternatively, described anti-reverse stream controller main body also comprises:
Warning system couples mutually with described adverse current detection circuit, outwards gives the alarm when described adverse current detection circuit is judged the generation flow reversal conditions.
Alternatively, described solar photovoltaic powered system also comprises:
Warning system couples mutually with described anti-reverse stream controller, outwards gives the alarm when described anti-reverse stream controller is judged the generation flow reversal conditions.
Alternatively, the parameters of electric power of described power conversion circuit both sides comprises the current value and/or the magnitude of voltage of the galvanic current value of input and/or magnitude of voltage, output alternating current.
Alternatively, described alarm is to send by the mode of wired or wireless instant messaging.
Compared with prior art, the utlity model has following advantage:
The utility model produces anti-reverse flow control signals in time and sends to the assembly inverter when flow reversal conditions takes place by detecting the current direction of current through meter, requires it to close or reduces ac output current, thereby prevent that the sense of current from being adverse current.For the user who still uses traditional ammeter, the utility model can avoid increasing the reading of ammeter, eliminates user's electricity charge loss.
In addition, the utility model can be provided with the recovery timer in anti-reverse stream controller, and at regular intervals, anti-reverse stream controller produces anti-adverse current erasure signal and sends to the assembly inverter, notifies its unlatching or rising ac output current.Perhaps the utility model is provided with timing recovery circuit in the assembly inverter, in case this assembly inverter enters after anti-reverse stream mode passed through the scheduled time, the assembly inverter also can be cancelled anti-adverse current measure automatically, recover the operate as normal of solar photovoltaic powered system, can bring into play the shunting action of solar photovoltaic powered system substantially, energy savings consumption for the electrical network electricity consumption.
Description of drawings
The above and other feature of the present utility model, character and advantage will become more obvious by the description below in conjunction with drawings and Examples, wherein:
Fig. 1 is the frame structure schematic diagram of a solar photovoltaic powered system in the prior art;
Fig. 2 is the frame structure schematic diagram of the solar photovoltaic powered system of anti-adverse current of an embodiment of the utility model;
Fig. 3 is the internal module structural representation of anti-reverse stream controller main body of the solar photovoltaic powered system of anti-adverse current of an embodiment of the utility model;
Fig. 4 is the internal module structural representation of anti-reverse stream controller main body of the solar photovoltaic powered system of anti-adverse current of another embodiment of the utility model;
Fig. 5 is the internal module structural representation of assembly inverter of the solar photovoltaic powered system of anti-adverse current of an embodiment of the utility model;
Fig. 6 is the internal module structural representation of assembly inverter of the solar photovoltaic powered system of anti-adverse current of another embodiment of the utility model;
Fig. 7 is the internal module structural representation of anti-reverse stream controller main body of the solar photovoltaic powered system of anti-adverse current of another embodiment of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with specific embodiments and the drawings, but should not limit protection range of the present utility model with this.
Fig. 2 is the frame structure schematic diagram of the solar photovoltaic powered system of anti-adverse current of an embodiment of the utility model.As shown in the figure, the solar photovoltaic powered system 200 of this anti-adverse current is connected to user load 203 with electrical network 205 after sys node 206 parallel connections.Wherein between electrical network 205 and the sys node 206 also cross-over connection ammeter 204 is arranged, this ammeter 204 belongs to old-fashioned traditional ammeter, promptly when the past grid transmission of solar photovoltaic powered system, it still increases with electric reading.
Continue as shown in Figure 2, this solar photovoltaic powered system 200 comprises a plurality of direct current photovoltaic modulies 201 and the assembly inverter 202 that is connected with each direct current photovoltaic module 201 respectively, is connected with user load 203 after the interchange output of each assembly inverter 202 is one another in series.In addition, this solar photovoltaic powered system 200 also comprises the anti-reverse stream controller 207 on the circuit that is parallel between electrical network 205 and the sys node 206.
In the present embodiment, this anti-reverse stream controller 207 can be connected in parallel on the circuit between ammeter 204 and the sys node 206 as shown in Figure 2, also can be connected in parallel on the circuit between ammeter 204 and the electrical network 205, the effect of these two kinds of connected modes is identical.Present embodiment is that example is described in detail with connected mode as shown in Figure 2.
In the present embodiment, anti-reverse stream controller 207 can comprise current detector 208 and anti-reverse stream controller main body 209.Wherein current detector 208 is connected on the circuit between electrical network 205 and the sys node 206, promptly can be connected on the circuit between ammeter 204 and the sys node 206, also can be connected on the circuit between ammeter 204 and the electrical network 205, be used to detect the electric current of current through meter 204 and produce the adverse current signal.And anti-reverse stream controller main body 209 is connected with current detector 208, is used for judging according to the testing result of current detector 208 whether flow reversal conditions takes place.When flow reversal conditions takes place when, judge that promptly electric current is when ammeter 204 flows to electrical network 205, produce anti-reverse flow control signals and send to assembly inverter 202, require reduction or close some or the interchange of all components inverter 202 output, to reduce or to eliminate from the alternating current of assembly inverter 202 outputs.
Fig. 3 is the internal module structural representation of anti-reverse stream controller main body of the solar photovoltaic powered system of anti-adverse current of an embodiment of the utility model.As shown in the figure, this anti-reverse stream controller main body 209 can comprise adverse current detection circuit 302, adverse current control circuit 303 and the anti-reverse stream communication circuit 304 of series connection successively.Wherein, adverse current detection circuit 302 is connected with current detector 208, is used for judging according to current detector 208 detected adverse current signals whether flow reversal conditions takes place on the circuit of current through meter 204.If judge flow reversal conditions does not take place, then adverse current detection circuit 302 is not temporarily taked any other action; And when flow reversal conditions took place, then triggering following comprised circuit modules such as adverse current control circuit 303 and anti-reverse stream communication circuit 304.At this moment, adverse current control circuit 303 can produce anti-reverse flow control signals, and this signal is passed to follow-up anti-reverse stream communication circuit 304.So anti-reverse stream communication circuit 304 sends to assembly inverter 202 by wire communication modes such as power line carrier communication or communications such as Wi-Fi, Zigbee or GPRS with anti-reverse flow control signals.
In the embodiment shown in fig. 3, communication mode between anti-reverse stream controller 207 (being anti-reverse stream controller main body 209 specifically) and the assembly inverter 202 is the wire communication mode, but it is as a kind of example, it will be recognized by those of skill in the art that the utility model and is not limited to adopt above-mentioned communication mode.
Anti-reverse flow control signals is sent to after the assembly inverter 202, and assembly inverter 202 is exported control, reduces or close the interchange output of some or all components inverter 202.
Fig. 4 is the internal module structural representation of anti-reverse stream controller main body of the solar photovoltaic powered system of anti-adverse current of another embodiment of the utility model.As shown in the figure, this anti-reverse stream controller main body 209 can also comprise recovers timer 306, can set for one first scheduled time as the case may be therein by the user, recovering timer 306 every one first scheduled time then can produce anti-adverse current erasure signal by notice adverse current control circuit 303, and this signal is passed to anti-reverse stream communication circuit 304.Similarly, so anti-reverse stream communication circuit 304 also will prevent that by wire communication modes such as power line carrier communication or communications such as Wi-Fi, Zigbee or GPRS the adverse current erasure signal sends to assembly inverter 202, assembly inverter 202 is exported control, the interchange output that raises or open some or all components inverter 202.
Fig. 5 is the internal module structural representation of assembly inverter of the solar photovoltaic powered system of anti-adverse current of an embodiment of the utility model.As shown in the figure, this assembly inverter 202 can comprise power conversion circuit 401, control circuit 402, supervisory circuit 403 and telecommunication circuit 404.Wherein, power conversion circuit 401 is connected with output cable 405 with each direct current photovoltaic module 201 respectively, is used for the direct current that direct current photovoltaic module 201 produces is converted to behind the alternating current by output cable 405 outputs.Supervisory circuit 403 is connected in the two ends of power conversion circuit 401 in parallel, is used for the parameters of electric power of monitoring power electric change-over circuit 401 both sides.This parameters of electric power specifically can comprise the current value and/or the magnitude of voltage of the galvanic current value of input and/or magnitude of voltage, output alternating current.Telecommunication circuit 404 is connected with output cable 405 with supervisory circuit 403 respectively, is used for receiving anti-reverse flow control signals or anti-adverse current erasure signal from anti-reverse stream controller 207, perhaps sends feedback signal to anti-reverse stream controller 207.Control circuit 402 is connected with power conversion circuit 401, supervisory circuit 403 and telecommunication circuit 404 respectively, is used for the work according to the requirement control power conversion circuit 401 of anti-reverse flow control signals or anti-adverse current erasure signal.When receiving anti-reverse flow control signals, the interchange of reduction or closing assembly inverter 202 output; When receiving anti-adverse current erasure signal, raise or the interchange output of opening assembly inverter 202.
Fig. 6 is the internal module structural representation of assembly inverter of the solar photovoltaic powered system of anti-adverse current of another embodiment of the utility model.As shown in the figure, this assembly inverter 202 can also comprise timing recovery circuit 406.After the interchange output of assembly inverter 202 was lowered or closes one second scheduled time, notice control circuit 402 raise or the interchange of opening assembly inverter 202 is exported.This second scheduled time also can be set up on their own as the case may be by the user.
Fig. 7 is the internal module structural representation of anti-reverse stream controller main body of the solar photovoltaic powered system of anti-adverse current of another embodiment of the utility model.As shown in the figure, this anti-reverse stream controller main body 209 can also comprise warning system 305, and it can couple mutually with adverse current detection circuit 202.Be that warning system 305 can directly be connected with adverse current detection circuit 202, also can be connected indirectly (for example wireless connections etc.), shown in Fig. 7 for directly to be connected by wired mode, but it is as just a kind of situation of example.Warning system 305 outwards gives the alarm in the time of can working as adverse current detection circuit 202 judgement generation flow reversal conditions.
In fact, in the utility model, warning system 305 also can be not included in the anti-reverse stream controller main body 209, and for example it can be long-range (not shown), as long as couple mutually with anti-reverse stream controller 207.When adverse current detection circuit 202 is judged the generation flow reversal conditions, by outwards giving the alarm in long-range mode wired or wireless instant messaging by anti-reverse stream communication circuit 304.The form of alarm can be send out a warning, buzzing etc., also can be that forms such as internet information or SMS, phone provide alarm.
In the utility model, anti-reverse stream controller can also be integrated with the controller of the energy output that is used to monitor solar photovoltaic powered system and operating state and fault.
The utility model produces anti-reverse flow control signals in time and sends to the assembly inverter when flow reversal conditions takes place by detecting the current direction of current through meter, requires it to close or reduces ac output current, thereby prevent that the sense of current from being adverse current.For the user who still uses traditional ammeter, the utility model can avoid increasing the reading of ammeter, eliminates user's electricity charge loss.
In addition, the utility model can be provided with the recovery timer in anti-reverse stream controller, and at regular intervals, anti-reverse stream controller produces anti-adverse current erasure signal and sends to the assembly inverter, notifies its unlatching or rising ac output current.Perhaps the utility model is provided with timing recovery circuit in the assembly inverter, in case this assembly inverter enters after anti-reverse stream mode passed through the scheduled time, the assembly inverter also can be cancelled anti-adverse current measure automatically, recover the operate as normal of solar photovoltaic powered system, can bring into play the shunting action of solar photovoltaic powered system substantially, energy savings consumption for the electrical network electricity consumption.
Though the utility model with preferred embodiment openly as above; but it is not to be used for limiting the utility model; any those skilled in the art are not in breaking away from spirit and scope of the present utility model; can make possible change and modification, therefore protection range of the present utility model should be as the criterion with the scope that the utility model claim is defined.
Claims (13)
1. solar photovoltaic powered system of anti-adverse current, it is being connected to user load after parallel connection of interlink point in the lump with electrical network, cross-over connection has ammeter between described electrical network and the sys node, described solar photovoltaic powered system comprises a plurality of direct current photovoltaic modulies and the assembly inverter that is connected with each direct current photovoltaic module respectively, after being one another in series, the interchange output of each assembly inverter is connected with described user load, it is characterized in that, described solar photovoltaic powered system also comprises the anti-reverse stream controller on the circuit that is parallel between described electrical network and the sys node, and described anti-reverse stream controller comprises:
Current detector is connected on the circuit between described electrical network and the sys node, detects the electric current of the described ammeter of flowing through and produces the adverse current signal;
Anti-reverse stream controller main body is connected with described current detector, produces anti-reverse flow control signals and sends to described assembly inverter according to described adverse current signal.
2. the solar photovoltaic powered system of anti-adverse current according to claim 1 is characterized in that, described anti-reverse stream controller main body comprises:
The adverse current detection circuit is connected with described current detector, judges whether to take place flow reversal conditions according to described adverse current signal, the circuit module of triggering following when flow reversal conditions takes place;
The adverse current control circuit is connected with described adverse current detection circuit, produces anti-reverse flow control signals when flow reversal conditions takes place;
Anti-reverse stream communication circuit is connected with described adverse current control circuit, and described anti-reverse flow control signals is sent to described assembly inverter, requires reduction or closes some or the interchange of all components inverter output.
3. the solar photovoltaic powered system of anti-adverse current according to claim 2 is characterized in that, described anti-reverse stream controller main body also comprises:
Recover timer, be connected, notify described adverse current control circuit to produce anti-adverse current erasure signal every one first scheduled time with described adverse current control circuit.
4. according to claim 2 or the solar photovoltaic powered system of 3 described anti-adverse currents, it is characterized in that described assembly inverter comprises:
Power conversion circuit is connected with output cable with each direct current photovoltaic module respectively, exports after direct current is converted to alternating current;
Supervisory circuit is connected in parallel with described power conversion circuit, monitors the parameters of electric power of described power conversion circuit both sides;
Telecommunication circuit is connected with output cable with described supervisory circuit respectively, receives described anti-reverse current control/erasure signal from described anti-reverse stream controller, perhaps sends feedback signal to described anti-reverse stream controller;
Control circuit is connected with described power conversion circuit, supervisory circuit and telecommunication circuit respectively, reduces or close/raise or open the interchange output of described assembly inverter according to described anti-reverse current control/erasure signal.
5. the solar photovoltaic powered system of anti-adverse current according to claim 4 is characterized in that, described assembly inverter also comprises:
Timing recovery circuit is connected with described control circuit, after the interchange output of described assembly inverter was lowered or closes one second scheduled time, and the interchange output of notifying described control circuit to raise or opening described assembly inverter.
6. the solar photovoltaic powered system of anti-adverse current according to claim 4 is characterized in that the communication mode between described anti-reverse stream controller and the assembly inverter is wire communication mode or communication.
7. the solar photovoltaic powered system of anti-adverse current according to claim 6 is characterized in that described wire communication mode is the power line carrier communication mode.
8. the solar photovoltaic powered system of anti-adverse current according to claim 6 is characterized in that, described communication is Wi-Fi, Zigbee or GPRS communication mode.
9. according to claim 2 or the solar photovoltaic powered system of 3 described anti-adverse currents, it is characterized in that described anti-reverse stream controller main body also comprises:
Warning system couples mutually with described adverse current detection circuit, outwards gives the alarm when described adverse current detection circuit is judged the generation flow reversal conditions.
10. the solar photovoltaic powered system of anti-adverse current according to claim 1 is characterized in that, described solar photovoltaic powered system also comprises:
Warning system couples mutually with described anti-reverse stream controller, outwards gives the alarm when described anti-reverse stream controller is judged the generation flow reversal conditions.
11. the solar photovoltaic powered system of anti-adverse current according to claim 4 is characterized in that, the parameters of electric power of described power conversion circuit both sides comprises the current value and/or the magnitude of voltage of the galvanic current value of input and/or magnitude of voltage, output alternating current.
12. the solar photovoltaic powered system of anti-adverse current according to claim 9 is characterized in that described alarm is to send by the mode of wired or wireless instant messaging.
13. the solar photovoltaic powered system of anti-adverse current according to claim 10 is characterized in that described alarm is to send by the mode of wired or wireless instant messaging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120180606XU CN202068352U (en) | 2011-05-31 | 2011-05-31 | Anti-countercurrent solar photovoltaic power supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120180606XU CN202068352U (en) | 2011-05-31 | 2011-05-31 | Anti-countercurrent solar photovoltaic power supply system |
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| CN202068352U true CN202068352U (en) | 2011-12-07 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427250A (en) * | 2011-12-27 | 2012-04-25 | 东莞市凯登能源科技有限公司 | Method, device and system with functions of high-frequency reversal transmission and unidirectional transmission |
| CN102780221A (en) * | 2012-07-20 | 2012-11-14 | 上海交通大学 | System and method for controlling online type photovoltaic power generation microgrid without storage device |
| CN102937987A (en) * | 2012-10-26 | 2013-02-20 | 浙江昱能光伏科技集成有限公司 | Method for querying inverters by integrated controller in distributed multi-inverter system |
| CN104300896A (en) * | 2014-11-18 | 2015-01-21 | 厦门科华恒盛股份有限公司 | Photovoltaic inverter control device with backflow preventing function and control method thereof |
| CN104796077A (en) * | 2015-04-27 | 2015-07-22 | 浙江昱能科技有限公司 | Anti-countercurrent distributed solar photovoltaic system and countercurrent prevention method |
| CN105227126A (en) * | 2014-06-03 | 2016-01-06 | 北京动力源科技股份有限公司 | A kind of photovoltaic module power optimizer and there is the photovoltaic generating system of this optimizer |
| CN109088430A (en) * | 2018-08-17 | 2018-12-25 | 常州思瑞电力科技有限公司 | Energy-storage system counterflow-preventing protects power supply system and its investigating method |
| CN115224742A (en) * | 2022-09-21 | 2022-10-21 | 赫里欧绿能建筑科技有限公司 | BIPV photovoltaic power generation convergence grid-connected system and method |
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- 2011-05-31 CN CN201120180606XU patent/CN202068352U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102427250A (en) * | 2011-12-27 | 2012-04-25 | 东莞市凯登能源科技有限公司 | Method, device and system with functions of high-frequency reversal transmission and unidirectional transmission |
| CN102780221A (en) * | 2012-07-20 | 2012-11-14 | 上海交通大学 | System and method for controlling online type photovoltaic power generation microgrid without storage device |
| CN102780221B (en) * | 2012-07-20 | 2014-08-27 | 上海交通大学 | System and method for controlling online type photovoltaic power generation microgrid without storage device |
| CN102937987A (en) * | 2012-10-26 | 2013-02-20 | 浙江昱能光伏科技集成有限公司 | Method for querying inverters by integrated controller in distributed multi-inverter system |
| CN102937987B (en) * | 2012-10-26 | 2016-03-16 | 浙江昱能科技有限公司 | The method of the Centralized Controller inquiry inverter in distributed multiple inverter system |
| CN105227126A (en) * | 2014-06-03 | 2016-01-06 | 北京动力源科技股份有限公司 | A kind of photovoltaic module power optimizer and there is the photovoltaic generating system of this optimizer |
| CN104300896A (en) * | 2014-11-18 | 2015-01-21 | 厦门科华恒盛股份有限公司 | Photovoltaic inverter control device with backflow preventing function and control method thereof |
| CN104796077A (en) * | 2015-04-27 | 2015-07-22 | 浙江昱能科技有限公司 | Anti-countercurrent distributed solar photovoltaic system and countercurrent prevention method |
| CN109088430A (en) * | 2018-08-17 | 2018-12-25 | 常州思瑞电力科技有限公司 | Energy-storage system counterflow-preventing protects power supply system and its investigating method |
| CN115224742A (en) * | 2022-09-21 | 2022-10-21 | 赫里欧绿能建筑科技有限公司 | BIPV photovoltaic power generation convergence grid-connected system and method |
| CN115224742B (en) * | 2022-09-21 | 2022-12-20 | 赫里欧绿能建筑科技有限公司 | BIPV photovoltaic power generation convergence grid-connected system and method |
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