CN205583642U - Photovoltaic module intelligence isolator - Google Patents
Photovoltaic module intelligence isolator Download PDFInfo
- Publication number
- CN205583642U CN205583642U CN201620300343.4U CN201620300343U CN205583642U CN 205583642 U CN205583642 U CN 205583642U CN 201620300343 U CN201620300343 U CN 201620300343U CN 205583642 U CN205583642 U CN 205583642U
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- China
- Prior art keywords
- module
- control circuit
- photovoltaic
- semiconductor
- oxide
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- Y02E60/7853—
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a photovoltaic module intelligence isolator, it relates to a photovoltaic circuit safety arrangement. It includes the MOS pipe, in the current sensor, sudden change electric current fault value control module, isolator control circuit, wireless receiving module and working power supply, the source electrode of MOS pipe, the grid all connects to isolator control circuit, working power supply happens to control module with sudden change electric current fault respectively, isolator control circuit, the wireless receiving module is connected, sudden change electric current fault value control module meets isolator control circuit, sudden change electric current fault value control module still be connected with current sensor, current sensor and the magnetic ring coupling coil that the cover was established on back level output electric wire are connected. The utility model discloses safe transformation the to solving present photovoltaic power plant provides an effective safety protection device with newly building a power station from now on, has guaranteed photovoltaic power plant's security, and stability is good, and the reliability is high, and the practicality is strong, easily uses widely.
Description
Technical field
The utility model relates to a kind of photovoltaic circuit safety guard, be specifically related to photovoltaic module Intelligent isolation switch.
Background technology
Current in existing photovoltaic power generation technology; when the group string line loop in generating occurs loose contact Anywhere and during arcing arcing; still there is no a kind of equipment can protected in the moment energy auto-cutout occurring circuit to jump arc and isolate; and lack any the same protective measure and necessary automatic control equipment; shade has been coverd with in the safety that will make photovoltaic; thus this problem has become the considerable safety technical problem compeling highly necessary to solve when photovoltaic plant from now on is built, a kind of photovoltaic module Intelligent isolation switch of design is particularly necessary.
Utility model content
For not enough present on prior art, this utility model purpose is to be to provide a kind of photovoltaic module Intelligent isolation switch, simple in construction, and reasonable in design, it is ensured that the safety of photovoltaic plant, good stability, reliability is high, practical, it is easy to promote the use of.
nullTo achieve these goals，This utility model is to realize by the following technical solutions: photovoltaic module Intelligent isolation switch，Including metal-oxide-semiconductor、Current sensor、Mutation current threshold control module、Disconnecting switch control circuit and working power，The drain electrode reversal connection diode of metal-oxide-semiconductor is to the source electrode of metal-oxide-semiconductor，It is connected to resistance between source electrode and the grid of metal-oxide-semiconductor，The source electrode of metal-oxide-semiconductor、Grid is all connected to disconnecting switch control circuit，Working power respectively with mutation current threshold control module、Disconnecting switch control circuit connects，Mutation current threshold control module connects disconnecting switch control circuit，Mutation current threshold control module is also connected with current sensor，The disconnecting switch being made up of said elements is connected between previous stage solar components and rear stage solar components，The drain electrode of described metal-oxide-semiconductor is connected with previous stage solar components by prime adapter，The source electrode of metal-oxide-semiconductor is connected with rear stage solar components by rear class adapter.
As preferably, described disconnecting switch also includes the wireless receiving module of high frequency, antenna it is connected on wireless receiving module, wireless receiving module is connected to disconnecting switch control circuit, wireless receiving module is connected with working power, the frequency of described wireless receiving module is 433MHz, and control centre can control dozens of, even more receiver module the most simultaneously.
As preferably, described working power is connected with the storage capacitor of internal high-capacity, all miniature with the outside little photovoltaic panel auxiliary power supply of working power, storage capacitor is connected, use the mode that internal storage capacitor and outside photovoltaic battery panel are powered, whole device long-term in the case of not having other supply line can normally be worked, it is ensured that the stability of work.
As preferably, described current sensor is connected with the magnet ring coupling coil being set on rear class output electric wire, uses magnet ring coupling coil to sample the detection technique of transmission line of electricity mutation current, can accurately catch the transmission line of electricity electromagnetism variable in electric current disconnection moment.
The beneficial effects of the utility model: to solve existing photovoltaic plant Safe Transformation and newly building a power station from now on provide and effectively ensure, further power outlet line is carried out the segmentation of polylith section, to reach nearly for set of cells string 800 volts and above suspended voltage to become the suspended voltage that the dispersibility of multistage is low, ensure the safety of the person and equipment；The most also the photovoltaic plant safety standard requirements that international IEC standard administrative organization i.e. will release, wide adaptability are met.
Accompanying drawing explanation
This utility model is described in detail below in conjunction with the accompanying drawings with detailed description of the invention；
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with detailed description of the invention, this utility model is expanded on further.
nullWith reference to Fig. 1，This detailed description of the invention is by the following technical solutions: photovoltaic module Intelligent isolation switch，Including metal-oxide-semiconductor 1、Current sensor 2、Mutation current threshold control module 3、Disconnecting switch control circuit 4 and working power 5，The drain electrode reversal connection diode D of metal-oxide-semiconductor 1 is to the source electrode of metal-oxide-semiconductor 1，It is connected to resistance R between source electrode and the grid of metal-oxide-semiconductor 1，The source electrode of metal-oxide-semiconductor 1、Grid is all connected to disconnecting switch control circuit 4，Working power 5 respectively with mutation current threshold control module 3、Disconnecting switch control circuit 4 connects，Mutation current threshold control module 3 connects disconnecting switch control circuit 4，Mutation current threshold control module 3 is also connected with current sensor 2，The disconnecting switch being made up of said elements is connected between previous stage solar components 11 and rear stage solar components 13，The drain electrode of described metal-oxide-semiconductor 1 is connected with previous stage solar components 11 by prime adapter 10，The source electrode of metal-oxide-semiconductor 1 is connected with rear stage solar components 13 by rear class adapter 12.
It should be noted that described disconnecting switch also includes wireless receiving module 6, wireless receiving module 6 is connected to antenna 7, wireless receiving module 6 is connected to disconnecting switch control circuit 4, and wireless receiving module 6 is connected with working power 5.
It should be noted that described working power 5 is connected with the storage capacitor 8 of internal high-capacity, all miniature with the outside little photovoltaic panel auxiliary power supply 9 of working power 5, storage capacitor 8 is connected；Use the mode that internal storage capacitor and the miniature photovoltaic battery panel in outside are powered, whole assembly isolation switch device can long-term in the case of not having other supply line normally be worked, keep stability, and the disconnecting switch of this form is mainly applicable to carry out existing photovoltaic plant the use of safety upgrade transformation.
In addition, described current sensor 2 is connected with the magnet ring coupling coil 14 being set on rear class output electric wire, magnet ring coupling coil 14 is used to sample the detection technique of transmission line of electricity mutation current, this technology has been provided simultaneously with isolation sampling and the characteristic insensitive to slowly varying current fluctuation, make it accurately to catch transmission line of electricity and disconnect the electromagnetism variable of moment at electric current, again after the comparison process of late-class circuit, automatically control power electronic switching and cut off transmission line of electricity, reach the purpose of circuit isolation；The electric current that transmission line of electricity is up-sampled by magnet ring coupling coil 14 is sent to after mutation current threshold control module 3 processes by current sensor 2 and is sent to disconnecting switch control circuit 4, disconnecting switch control circuit 4 control the shutoff of metal-oxide-semiconductor 1.
This detailed description of the invention uses the electrical switch that the new power metal-oxide-semiconductor 1 of special low on-resistance is isolated as circuit, control power height the least, pressure, rated current that this element needs are big, and because saturation conduction resistance is the least, it is ensured that during normal power generation, circuit will not be produced too much droop loss and self-heating；Disconnecting switch is internally installed also has high frequency wireless receiving module, the remote control command of outside can be received, for already at the disconnecting switch closing isolation, it is necessary to it just can be made to reopen by wireless remote control signal, it is possible to make disconnecting switch Close All by wireless control signal；Described wireless receiving module 6 uses the transceiver module of the 433MHz of learning-oriented address number, and control centre can control the even more receiver module of dozens of the most simultaneously.
The construction features of this detailed description of the invention: be a functional security module that can be independently inserted existing photovoltaic generation group string loop, module volume is the least, size is at 60mm × 50mm × about 25mm, the plastics card base of two width 10mm is arranged at the bottom of module, can snap onto easily in the split seam of two pieces of cell panels in general photovoltaic plant, and keep fixing from beneath catching on.
The electrical connection methods of this detailed description of the invention: photovoltaic module Intelligent isolation switch is being drawn one just in module bottom, negative two conveying electrical wirings and a connector, in the place that needs install additional, as long as the positive and negative adapter first original two pieces of cell panels being connected is separately, then it is inserted respectively on the positive and negative adapter that photovoltaic module Intelligent isolation switch is drawn, the little photovoltaic battery panel again this module carried is fixed at the neutral gear of illumination, just can start working, the duty that module original state acquiescence is to turn on.
The function of this detailed description of the invention and effect: when the intelligent inverter (or intelligent junction box) in work detects the ELECTROMAGNETIC RADIATION SIGNATURE that the transmitting loop of certain photovoltaic cell group string causes because of loose contact, change further according to other circuit parameters, just can infer the branch road specifically broken down, and by electronic power switch, this loop is cut off, it is to avoid the further expansion of fault.And the effect of this photovoltaic module Intelligent isolation switch is: further power outlet line to be carried out the segmentation of polylith section, to reach nearly for set of cells string 800 volts and above suspended voltage to become the suspended voltage that the dispersibility of multistage is low, ensure the safety of the person and equipment, and also to meet in the photovoltaic system safety protection standard that IEC will promulgate about photovoltaic module after carrying out safety cut-off, any point suspended voltage all must not the new standard higher than 80 volts.
This detailed description of the invention to solve existing photovoltaic plant Safe Transformation and from now on newly build a power station provide a kind of effective safety features, also the photovoltaic plant safety standard requirements that international IEC standard administrative organization i.e. will release are met, when there is, in finding circuit, the spark excitation electromagnetic wave occurred because of loose contact in the safety monitoring loop that the inverter of photovoltaic plant is had, during the electric current of fast shut-off group string loop, just can be servo-actuated and the external connection of each assembly is cut off, reach to be that the highest floating voltage in photovoltaic loop is divided into multistage, the voltage making loop any point is below the safety criterion new for IEC of 80V, reliable and stable, there is wide market application foreground.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described.Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description, principle of the present utility model is simply described; on the premise of without departing from this utility model spirit and scope; this utility model also has various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (6)
- null1. photovoltaic module Intelligent isolation switch，It is characterized in that，Including metal-oxide-semiconductor (1)、Current sensor (2)、Mutation current threshold control module (3)、Disconnecting switch control circuit (4) and working power (5)，Drain electrode reversal connection diode (D) of metal-oxide-semiconductor (1) is to the source electrode of metal-oxide-semiconductor (1)，Resistance (R) it is connected between source electrode and the grid of metal-oxide-semiconductor (1)，The source electrode of metal-oxide-semiconductor (1)、Grid is all connected to disconnecting switch control circuit (4)，Working power (5) respectively with mutation current threshold control module (3)、Disconnecting switch control circuit (4) connects，Mutation current threshold control module (3) connects disconnecting switch control circuit (4)，Mutation current threshold control module (3) is also connected with current sensor (2)，The disconnecting switch being made up of said elements is connected between previous stage solar components (11) and rear stage solar components (13).
- Photovoltaic module Intelligent isolation switch the most according to claim 1, it is characterized in that, described disconnecting switch also includes the wireless receiving module (6) of high frequency, antenna (7) it is connected on wireless receiving module (6), wireless receiving module (6) is connected to disconnecting switch control circuit (4), and wireless receiving module (6) is connected with working power (5).
- Photovoltaic module Intelligent isolation switch the most according to claim 2, it is characterised in that the frequency of described wireless receiving module (6) is 433MHz.
- Photovoltaic module Intelligent isolation switch the most according to claim 1, it is characterized in that, described working power (5) is connected with the storage capacitor (8) of internal high-capacity, and all miniature with the outside little photovoltaic panel auxiliary power supply (9) of working power (5), storage capacitor (8) is connected.
- Photovoltaic module Intelligent isolation switch the most according to claim 1, it is characterized in that, the drain electrode of described metal-oxide-semiconductor (1) is connected with previous stage solar components (11) by prime adapter (10), and the source electrode of metal-oxide-semiconductor (1) is connected with rear stage solar components (13) by rear class adapter (12).
- Photovoltaic module Intelligent isolation switch the most according to claim 1, it is characterised in that described current sensor (2) is connected with the magnet ring coupling coil (14) being set on rear class output electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620300343.4U CN205583642U (en) | 2016-04-12 | 2016-04-12 | Photovoltaic module intelligence isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620300343.4U CN205583642U (en) | 2016-04-12 | 2016-04-12 | Photovoltaic module intelligence isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205583642U true CN205583642U (en) | 2016-09-14 |
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ID=56864846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620300343.4U Withdrawn - After Issue CN205583642U (en) | 2016-04-12 | 2016-04-12 | Photovoltaic module intelligence isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205583642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896460A (en) * | 2016-04-12 | 2016-08-24 | 常熟市福莱德连接器科技有限公司 | Photovoltaic module intelligent isolation switch |
-
2016
- 2016-04-12 CN CN201620300343.4U patent/CN205583642U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896460A (en) * | 2016-04-12 | 2016-08-24 | 常熟市福莱德连接器科技有限公司 | Photovoltaic module intelligent isolation switch |
| CN105896460B (en) * | 2016-04-12 | 2018-11-09 | 常熟市福莱德连接器科技有限公司 | Photovoltaic module Intelligent isolation switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160914 Effective date of abandoning: 20181109 |
|
| AV01 | Patent right actively abandoned |