CN214799407U - Photovoltaic system, photovoltaic module and local manager - Google Patents
Photovoltaic system, photovoltaic module and local manager Download PDFInfo
- Publication number
- CN214799407U CN214799407U CN202120582397.5U CN202120582397U CN214799407U CN 214799407 U CN214799407 U CN 214799407U CN 202120582397 U CN202120582397 U CN 202120582397U CN 214799407 U CN214799407 U CN 214799407U
- Authority
- CN
- China
- Prior art keywords
- photovoltaic module
- photovoltaic
- local manager
- signal
- voltage
- 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.)
- Active
Links
- 238000004891 communication Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000003475 lamination Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 7
- 206010014357 Electric shock Diseases 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
Images
Classifications
-
- 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 a photovoltaic system, photovoltaic module and local manager, photovoltaic system includes photovoltaic module, local manager, main control unit and dc-to-ac converter, the dc-to-ac converter passes through main line electric connection with photovoltaic module, the one end and the photovoltaic module of local manager are connected, the other end is connected to the main line, local manager is connected with the main control unit communication, so that local manager starts in the settlement time quantum after receiving the permission running signal that main control unit sent, make photovoltaic module output normal voltage to dc-to-ac converter, and in the non-settlement time quantum, local manager is with photovoltaic module from the disconnection of on the road or reduce photovoltaic module's output voltage. The utility model discloses a photovoltaic system need not judge whether allow the running signal to skip some pulses, but directly switches on photovoltaic module according to allowing the existence of running signal and preset's time quantum, has reduced the judgement process for reliability and security reinforcing.
Description
Technical Field
The utility model relates to a photovoltaic system, photovoltaic module and local manager belongs to the photovoltaic technology field.
Background
As distributed photovoltaic becomes more popular, the requirements for distributed safety regulations are also increasingly refined, such as: when the roof is installed with components, abnormal detection of the components, emergencies such as fire and the like occur and emergency personnel need to handle the components on site, how to ensure that the high-voltage electric shock of the component array is not generated is a problem which needs to be solved urgently.
At present, most power stations can only realize the shutdown function of a main inverter end, but the power stations can only cut off the current in the power stations, the high voltage still exists in the power stations, and the voltage of a general distributed array is larger than 400V, so that the danger that emergency personnel are shocked by the high voltage is caused. The us NEC 2017-Article 690.12 requires that photovoltaic circuits on or in buildings need to be equipped with a fast shut-off function to reduce the risk of electric shock to emergency personnel. At present, the mainstream of developed countries such as europe and the united states is to configure a micro inverter to control the electrical output of each component, but the scheme has high cost and runs counter to the large background of price-balancing internet surfing.
In view of the above, there is a need for improvements to existing photovoltaic systems to address the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a photovoltaic system, this photovoltaic system can cut off the circuit in the system at any time for photovoltaic system's maximum output voltage reduces to human safe voltage, ensures that constructor is not by the high-voltage electric shock.
In order to achieve the above object, the utility model provides a photovoltaic system, including photovoltaic module, local manager, main control unit and dc-to-ac converter, the dc-to-ac converter passes through main line electric connection with photovoltaic module, the one end and the photovoltaic module of local manager are connected to, the other end is connected to the main line to control switching on or shutting off between photovoltaic module and the dc-to-ac converter, local manager with the main control unit communication is connected, so that the local manager starts in the settlement time quantum after receiving the permission running signal that main control unit sent, makes photovoltaic module output normal voltage extremely the dc-to-ac converter, and in the unsettled time quantum, local manager is with photovoltaic module from the disconnection on the main line or reduce photovoltaic module's output voltage.
As a further improvement of the present invention, the set time period is between T1 and T2 time points after the local manager receives the operation permission signal sent by the main controller, wherein T2 is later than T1.
As a further improvement of the present invention, when the operation permission signals are plural, the local manager is started between time points T1 to T2 after receiving each operation permission signal sent by the main controller, so that the photovoltaic module outputs a normal voltage to the inverter; and not between any one of the time points T1 to T2, when the operation signal is allowed, the local manager disconnects the photovoltaic module from the main line or reduces the output voltage of the photovoltaic module.
As a further improvement of the utility model, the operation allowing signal is transmitted periodically, and the transmission period is less than or equal to DeltaT (T2-T1).
As the utility model discloses a further improvement, T1 is local manager and receives 0 ~ 30S behind the signal of allowwing to operate, and T2 is local manager and receives 0.1 ~ 60S behind the signal of allowwing to operate.
As a further improvement of the present invention, the operation-allowed signal is transmitted periodically, the transmission period is Δ T > (T2-T1), and in one transmission period of the operation-allowed signal, the local manager disconnects the photovoltaic module from the main line or reduces the output voltage of the photovoltaic module.
As the utility model discloses a further improvement, T1 is local manager and receives 0 ~ 30S behind the signal of allowwing to operate, and T2 is local manager and receives 0.1 ~ 60S behind the signal of allowwing to operate.
As a further improvement of the utility model, the local manager includes the signal reception end of being connected with main control unit and the switch of being connected with signal reception end, signal reception end is used for receiving the permission running signal that main control unit sent to control between the T1 to the T2 time point after receiving the permission running signal the switch is closed or opened, makes photovoltaic module is connected to the mainline and exports normal voltage extremely the inverter, and then controls in unset time quantum the switch is opened or closed, makes photovoltaic module breaks off or reduces from the mainline photovoltaic module's output voltage.
As a further improvement of the present invention, the switch is connected in series with the photovoltaic module, when the signal receiving terminal controls when the switch is closed, the photovoltaic module is connected to the main line and outputs normal voltage extremely the inverter, when the signal receiving terminal controls when the switch is opened, the photovoltaic module with the main line disconnection.
As a further improvement of the present invention, the switch with photovoltaic module connects in parallel, works as the signal receiving terminal control when the switch is opened, photovoltaic module output normal voltage extremely the dc-to-ac converter, works as the signal receiving terminal control when the switch is closed, photovoltaic module output low voltage extremely the dc-to-ac converter.
As a further improvement of the utility model, the local manager includes the signal reception end of being connected with main control unit and the voltage regulation device of being connected with signal reception end, signal reception end is used for receiving the permission running signal that main control unit sent to control between the T1 to T2 time point after receiving the permission running signal voltage regulation device makes photovoltaic module is connected to the mainline and exports normal voltage extremely the dc-to-ac converter, and then controls in the unset time quantum voltage regulation device reduces photovoltaic module's output voltage.
As a further improvement of the present invention, the voltage regulating device is a DC/DC power converter.
As a further improvement of the utility model, the main controller is arranged in the inverter.
An object of the utility model is also to provide a photovoltaic module, this photovoltaic module is applied to aforementioned photovoltaic system, be provided with on the photovoltaic module local manager.
As a further improvement of the present invention, the photovoltaic module includes a photovoltaic laminate and is located a frame around the photovoltaic laminate, the local manager is located the frame or on the photovoltaic laminate.
An object of the utility model is also to provide a local manager, this local manager is applied to aforementioned photovoltaic system.
The utility model has the advantages that: the utility model discloses a photovoltaic system sends the settlement time quantum after the permission running signal at main control unit in, and the local manager can control photovoltaic module output normal voltage to dc-to-ac converter, and in the non-settlement time quantum, the local manager then disconnects or reduces photovoltaic module's output voltage on the main line with photovoltaic module, so sets up, makes the utility model discloses a photovoltaic system can be when constructor handles urgent unusual incident for photovoltaic system's maximum output voltage reduces to human safe voltage, ensures that constructor not by the high-voltage electric shock.
Drawings
Fig. 1 is a first structural schematic diagram of the photovoltaic system of the present invention.
Fig. 2 is a relational diagram of the operation signal and the on-off state of the photovoltaic module in the present invention.
Fig. 3 is a waveform diagram of a first on-off state of the photovoltaic module after the master controller in fig. 1 sends out an operation permission signal.
Fig. 4 is a waveform diagram of a second on-off state of the photovoltaic module after the master controller in fig. 1 sends out an operation permission signal.
Fig. 5 is a flow chart of a method of operating the photovoltaic system shown in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the utility model discloses a photovoltaic system, including photovoltaic module, local manager, main control unit and dc-to-ac converter, wherein, the dc-to-ac converter passes through main line electric connection with photovoltaic module, and the one end and the photovoltaic module of local manager are connected, the other end is connected to the main line to switch on or turn-off between convenient control photovoltaic module and the dc-to-ac converter. The local manager is in communication connection with the main controller, so that the local manager can receive an operation permission signal sent by the main controller; specifically, after the local manager receives an operation permission signal sent by the main controller, the local manager is started within a set time period, and the photovoltaic module can output normal voltage to the inverter; and during the non-set time period (i.e. all time periods except the set time period), the local manager disconnects the photovoltaic module from the main line or reduces the output voltage of the photovoltaic module.
In the embodiment, a plurality of photovoltaic modules are arranged, and a plurality of local managers are correspondingly arranged, so that each photovoltaic module can be connected with and disconnected from a main line through the corresponding local manager; the main controller is provided with one and is arranged in the inverter to be used as a component or a function of the inverter, and each local manager is in communication connection with the main controller through a wireless network or a PLC (programmable logic controller) so as to receive signals sent by the main controller. Of course, in other embodiments, the number of the local managers may also be set to be less than the number of the photovoltaic modules, and then one local manager may be used to control the on/off of a plurality of photovoltaic modules; the main controller may also be separately disposed at any position of the photovoltaic system, and is not limited herein.
The photovoltaic assembly comprises a photovoltaic lamination part and a frame positioned on the periphery of the photovoltaic lamination part, and the local manager is arranged on the photovoltaic assembly and is specifically positioned on the frame or the photovoltaic lamination part; preferably, the local manager may be mechanically attached to the frame of the photovoltaic module, or may be adhered to the back sheet of the photovoltaic laminate, which is not particularly limited herein.
Fig. 2 shows a relationship diagram of the operation permission signal and the on-off state of the photovoltaic module. As can be seen from this fig. 2: the local manager is started between the time point T1 and the time point T2 after receiving an operation permission signal sent by the main controller, so that the photovoltaic module outputs normal voltage to the inverter, wherein T2 is later than T1. That is, the "setting time period" is between T1 and T2 after the local manager receives an operation permission signal from the master controller, and between T1 and T2 of the operation permission signal, the photovoltaic module is in the on state; and when the time point is not between T1 and T2, the photovoltaic module is in an off state.
Of course, the number of the operation permission signals is not limited to one, and may be plural. When the number of the operation permission signals is multiple, the local manager is started between time points T1 to T2 after receiving each operation permission signal sent by the main controller, so that the photovoltaic module outputs normal voltage to the inverter; and the local manager disconnects the photovoltaic module from the main line or reduces the output voltage of the photovoltaic module when the photovoltaic module is not in any time point between T1 and T2 of the allowed operation signal. Two specific examples will be described in detail below.
Fig. 3 shows a first on-off state waveform diagram of the photovoltaic module. From this figure it can be seen that: the operation allowing signal is transmitted continuously and periodically, and the transmission period of the operation allowing signal is less than or equal to delta T (T2-T1), wherein T1 is 0-30S after the local manager receives the operation allowing signal, T2 is 0.1-60S after the local manager receives the operation allowing signal, and T2 is later than T1.
Taking FIG. 3 as an example, T01Indicating the point in time when the local manager received the first signal to allow operation, T11Indicating the point in time when the photovoltaic module starts to conduct after the local manager receives the first signal to allow operation, T21Indicating the point in time when the local manager starts to switch off the photovoltaic module after receiving the first signal to allow operation, i.e. T01～T11This time is the reaction time of the photovoltaic module, T11～T21The period of time is the conduction time of the photovoltaic module; by analogy, T02Indicating the point in time when the local manager received the second signal to allow operation, T12Indicating the point in time when the photovoltaic module starts to switch on after the local manager receives the second enable signal, T22Indicating the time point when the photovoltaic module starts to be switched off after the local manager receives the second operation allowing signal; therefore, under the action of the first operation allowing signal, the photovoltaic module is not switched off in time and is switched on continuously under the action of the second operation allowing signal, and at the moment, the continuous switching on of the photovoltaic module is realized.
That is, the turn-on conditions of the photovoltaic module in fig. 3 are: the photovoltaic module is in a conducting state between any one time point T1 and T2 of the operation allowing signal, and the photovoltaic module can be kept continuously conducting when the transmission period delta T ≦ (T2-T1) of the operation allowing signal; the turn-off conditions of the photovoltaic module are as follows: and when the photovoltaic module is not in the time point from T1 to T2 of any one operation allowing signal, the photovoltaic module is in an off state.
Fig. 4 is a waveform diagram showing a second on-off state of the photovoltaic module. From this figure it can be seen that: the operation signal is allowed to be transmitted continuously and periodically, but the photovoltaic module cannot keep a continuous conducting state, because: when the operation permission signal is interrupted in one transmission period, the local manager responds immediately, the photovoltaic module is turned off immediately (namely the output voltage is reduced to zero), and the transmission period of the operation permission signal is delta T > (T2-T1), wherein T1 is 0-30S after the local manager receives the operation permission signal, T2 is 0.1-60S after the local manager receives the operation permission signal, and T2 is later than T1.
That is, the turn-on conditions of the photovoltaic module in fig. 4 are: the photovoltaic module is in an on state between any time point T1 and T2 of the operation allowing signal, and when a transmission period Delta T > (T2-T1) of the operation allowing signal exceeds T2 time in one transmission period, the photovoltaic module enters an off state; namely, the turn-off conditions of the photovoltaic module are as follows: and when the photovoltaic module is not in the time point from T1 to T2 of any one operation allowing signal, the photovoltaic module is in an off state.
It should be noted that: in fig. 3 and fig. 4, a "falling edge" is used as a starting time point of the operation-allowed signal, but in other embodiments or practical processes, a "rising edge" or a certain part of a rising process may also be used as a starting time point of the operation-allowed signal, and this is not limited here.
From the above fig. 3 and 4, it can be seen that: the utility model discloses a photovoltaic system need not judge whether allow the running signal to skip some pulses, but directly switches on or shuts off photovoltaic module according to allowing the running signal have or not and preset's rule (if set for the time quantum), has reduced the judgement process for reliability and security reinforcing. This is because: once the decision process is generated, the more hard software involved, the more decision actions, the higher the complexity and the worse the reliability; conversely, the smaller the decision action, the lower the complexity and the higher the security.
As shown in fig. 5, the operation method of the photovoltaic system of the present invention mainly includes the following steps:
connecting the photovoltaic module to a main line;
when the local manager receives an operation permission signal sent by the main controller, the local manager is started within a set time period, and the photovoltaic module is connected to the main circuit and outputs normal voltage to the inverter; and in the non-set time period, the local manager disconnects the photovoltaic module from the main line or reduces the output voltage of the photovoltaic module.
The "setting time period" is specifically: the local manager receives any one operation permission signal sent by the main controller from T1 to T2; the "non-set time period" is specifically: not between any of the time points T1 to T2, where T2 is later than T1, at which the run enable signal is enabled.
It can thus be further demonstrated that: the utility model discloses a photovoltaic system need not judge whether allow the running signal to have skipped some pulses when the operation, but directly switches on or shuts off photovoltaic module according to allowing the existence of running signal and the rule that preset is good, has reduced the judgement process, has strengthened reliability and security.
As one of the preferred embodiments of the present invention, the local manager includes a signal receiving end connected to the main controller and a switch connected to the signal receiving end, the signal receiving end is used to receive the operation-allowed signal sent by the main controller, and controls the switch to be closed or opened between the time points T1 and T2 after receiving the operation-allowed signal, so that the photovoltaic module is connected to the main line and outputs the normal voltage to the inverter, and controls the switch to be opened or closed at other time periods (i.e. non-set time periods), so that the photovoltaic module is disconnected from the main line or the output voltage of the photovoltaic module is reduced.
Specifically, the switch and the photovoltaic module can be connected in series or in parallel. When the switch is connected with the photovoltaic module in series, if the signal receiving end controls the switch to be closed, the photovoltaic module can be connected to the main line and outputs normal voltage to the inverter, and if the signal receiving end controls the switch to be opened, the photovoltaic module is disconnected from the main line. When the switch is connected with the photovoltaic module in parallel, if the signal receiving end controls the switch to be opened, the photovoltaic module can output normal voltage to the inverter at the moment, if the signal receiving end controls the switch to be closed, the photovoltaic module outputs low voltage to the inverter at the moment, and of course, the low voltage refers to human body safety voltage, the specific numerical value is not limited, and only can emergency response personnel be ensured not to be shocked by high voltage when handling emergency abnormal events.
As another preferred embodiment of the present invention, the switch in the above embodiments may be replaced by a voltage regulator, and at this time, the signal receiving end is used to receive the operation-allowed signal sent by the main controller, and control the voltage regulator to operate between the time points T1 and T2 after receiving the operation-allowed signal, so that the photovoltaic module is connected to the main line and outputs the normal voltage to the inverter, and control the voltage regulator to operate at other time periods (i.e., non-set time periods) to reduce the output voltage of the photovoltaic module. Preferably, the voltage regulating device is a DC/DC power converter.
Specifically, in a set time period, the photovoltaic module is connected to a main line, the photovoltaic module can output normal voltage to the inverter, and the whole photovoltaic system works normally; within a non-set time period, the voltage regulating device can disconnect the photovoltaic module from the main line and can also keep the photovoltaic module connected with the main line, but at the moment, the voltage regulating device needs to regulate the output voltage of the photovoltaic module, so that the output voltage of the photovoltaic module is reduced, and emergency response personnel are prevented from being shocked by high voltage when handling emergency abnormal events.
To sum up, the utility model discloses a photovoltaic system sends the settlement time quantum after the permission running signal at main control unit in, and photovoltaic module output normal voltage to dc-to-ac converter can be controlled to local manager, and in the non-settlement time quantum, local manager then with photovoltaic module from the main line on disconnection or reduce photovoltaic module's output voltage, so set up, makes the utility model discloses a photovoltaic system can be when constructor handles urgent unusual incident for photovoltaic system's maximum output voltage reduces to human safe voltage, ensures that constructor not by the high-voltage electric shock.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.
Claims (16)
1. A photovoltaic system, characterized by: the photovoltaic module is connected with the main circuit through the main circuit, one end of the local manager is connected with the photovoltaic module, the other end of the local manager is connected to the main circuit to control the connection or disconnection between the photovoltaic module and the inverter, the local manager is in communication connection with the main controller, so that the local manager can be started within a set time period after receiving an operation allowing signal sent by the main controller, the photovoltaic module outputs normal voltage to the inverter, and the local manager disconnects the photovoltaic module from the main circuit or reduces the output voltage of the photovoltaic module within a non-set time period.
2. The photovoltaic system of claim 1, wherein: the set time period is between T1 and T2 after the local manager receives the operation permission signal sent by the master controller, wherein T2 is later than T1.
3. The photovoltaic system of claim 2, wherein: when the operation permission signals are multiple, the local manager is started between the time points T1 to T2 after each operation permission signal sent by the main controller is received, so that the photovoltaic module outputs normal voltage to the inverter; and not between any one of the time points T1 to T2, when the operation signal is allowed, the local manager disconnects the photovoltaic module from the main line or reduces the output voltage of the photovoltaic module.
4. The photovoltaic system of claim 2, wherein: the operation permission signal is transmitted periodically with a transmission period of DeltaT ≦ (T2-T1).
5. The photovoltaic system of claim 4, wherein: t1 is 0-30S after the local manager receives the operation permission signal, and T2 is 0.1-60S after the local manager receives the operation permission signal.
6. The photovoltaic system of claim 2, wherein: the operation permission signal is transmitted periodically with a transmission period delta T > (T2-T1), and in one transmission period of the operation permission signal, the local manager disconnects the photovoltaic module from the main line or reduces the output voltage of the photovoltaic module.
7. The photovoltaic system of claim 6, wherein: t1 is 0-30S after the local manager receives the operation permission signal, and T2 is 0.1-60S after the local manager receives the operation permission signal.
8. The photovoltaic system of claim 2, wherein: the local manager comprises a signal receiving end connected with a main controller and a switch connected with the signal receiving end, wherein the signal receiving end is used for receiving an operation allowing signal sent by the main controller, and controlling the switch to be closed or opened between time points T1 and T2 after the operation allowing signal is received, so that the photovoltaic module is connected to a main line and outputs normal voltage to the inverter, and the switch is controlled to be opened or closed in a non-set time period, so that the photovoltaic module is disconnected from the main line or the output voltage of the photovoltaic module is reduced.
9. The photovoltaic system of claim 8, wherein: the switch is connected with the photovoltaic module in series, when the signal receiving end controls the switch to be switched on, the photovoltaic module is connected to the main line and outputs normal voltage to the inverter, and when the signal receiving end controls the switch to be switched on, the photovoltaic module is disconnected with the main line.
10. The photovoltaic system of claim 8, wherein: the switch is connected with the photovoltaic module in parallel, when the signal receiving end controls the switch to be switched on, the photovoltaic module outputs normal voltage to the inverter, and when the signal receiving end controls the switch to be switched off, the photovoltaic module outputs low voltage to the inverter.
11. The photovoltaic system of claim 2, wherein: the local manager comprises a signal receiving end connected with a main controller and a voltage regulating device connected with the signal receiving end, wherein the signal receiving end is used for receiving an operation allowing signal sent by the main controller and controlling the voltage regulating device between the time points from T1 to T2 after the operation allowing signal is received, so that the photovoltaic module is connected to a main line and outputs normal voltage to the inverter, and the voltage regulating device is controlled in a non-set time period to reduce the output voltage of the photovoltaic module.
12. The photovoltaic system of claim 11, wherein: the voltage regulating device is a DC/DC power converter.
13. The photovoltaic system of claim 1, wherein: the main controller is arranged in the inverter.
14. A photovoltaic module applied to the photovoltaic system according to any one of claims 1 to 13, wherein: the photovoltaic module is provided with the local manager.
15. The photovoltaic module of claim 14, wherein: the photovoltaic module comprises a photovoltaic lamination part and a frame positioned on the periphery of the photovoltaic lamination part, and the local manager is arranged on the frame or the photovoltaic lamination part.
16. A local manager, characterized by: application to a photovoltaic system according to any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120582397.5U CN214799407U (en) | 2021-03-18 | 2021-03-18 | Photovoltaic system, photovoltaic module and local manager |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120582397.5U CN214799407U (en) | 2021-03-18 | 2021-03-18 | Photovoltaic system, photovoltaic module and local manager |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214799407U true CN214799407U (en) | 2021-11-19 |
Family
ID=78666399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120582397.5U Active CN214799407U (en) | 2021-03-18 | 2021-03-18 | Photovoltaic system, photovoltaic module and local manager |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214799407U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022193854A1 (en) * | 2021-03-18 | 2022-09-22 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic system, photovoltaic assembly, local manager and photovoltaic system operation method |
| WO2022193458A1 (en) * | 2021-03-18 | 2022-09-22 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic system, photovoltaic assembly, local manager and photovoltaic system operation method |
-
2021
- 2021-03-18 CN CN202120582397.5U patent/CN214799407U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022193854A1 (en) * | 2021-03-18 | 2022-09-22 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic system, photovoltaic assembly, local manager and photovoltaic system operation method |
| WO2022193458A1 (en) * | 2021-03-18 | 2022-09-22 | 苏州阿特斯阳光电力科技有限公司 | Photovoltaic system, photovoltaic assembly, local manager and photovoltaic system operation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214799407U (en) | Photovoltaic system, photovoltaic module and local manager | |
| EP2752881B1 (en) | Shutdown method for photovoltaic system | |
| CN109264517A (en) | A kind of brake controller of elevator and method | |
| US8928175B2 (en) | Junction box, energy system and method for controlling the same | |
| CN109842095B (en) | Power conversion system, controller and control method | |
| CN108512245A (en) | The photovoltaic system and its control method of component level shutdown can be realized automatically | |
| CN112803485A (en) | Photovoltaic rapid turn-off system and control method thereof | |
| CN109193610B (en) | Shutdown control system and method | |
| CN110100370A (en) | The switching construction that switches between two input terminals, equipment, system and method | |
| CN109149777B (en) | Shutdown control system and method | |
| WO2021038914A1 (en) | Solar power generation network shut-off unit and solar power generation network shut-off system comprising same | |
| CN215222138U (en) | Photovoltaic system | |
| US20200274350A1 (en) | Emergency shutdown of an energy supply unit | |
| CN115117846A (en) | Photovoltaic system, photovoltaic module, local manager and photovoltaic system operation method | |
| US20220234463A1 (en) | Charging apparatus and method of operating the same | |
| CN215222137U (en) | Photovoltaic system | |
| JPH1141818A (en) | Distributed power generation system | |
| WO2022193854A1 (en) | Photovoltaic system, photovoltaic assembly, local manager and photovoltaic system operation method | |
| CN115473492A (en) | Photovoltaic system and method for operating same | |
| CN215934815U (en) | Photovoltaic system and local manager | |
| CN213461564U (en) | DC inverter | |
| KR20200030820A (en) | System for supplying power | |
| JP2014107969A (en) | Dc power supply device, power controller, dc power supply system, and dc power supply control method | |
| CN112366830B (en) | Intelligent high-reliability low-voltage power supply and distribution system based on radial wiring and method thereof | |
| CN216086256U (en) | Automatic power switching system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |