CN104158484A - Branch-controllable intelligent combiner box based on IGBT technology, and photovoltaic system - Google Patents
Branch-controllable intelligent combiner box based on IGBT technology, and photovoltaic system Download PDFInfo
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- CN104158484A CN104158484A CN201410348341.8A CN201410348341A CN104158484A CN 104158484 A CN104158484 A CN 104158484A CN 201410348341 A CN201410348341 A CN 201410348341A CN 104158484 A CN104158484 A CN 104158484A
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- branch
- component
- igbt
- hall element
- header box
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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
A branch-controllable intelligent combiner box based on the IGBT technology comprises a box body, a switch-in component, a sensor system, a background controller and a communication component, wherein a DC positive-negative busbar is arranged in the box body; the switch-in component is formed by connecting IGBT control components and Hall sensors mutually, and is in electrical connection with the DC positive-negative busbar, and the Hall sensors are used for being connected with photovoltaic circuits; the sensor system comprises a sampling component, a humiture sensor and a main control unit, and is arranged in the box body, the sampling component is in electrical connection with the switch-in component, and both the sampling component and the humiture sensor are in signal connection with the main control unit; the main control unit is in signal connection with the background controller through the communication component. By the adoption of the structure, the combiner box provided by the invention not only has functions of general intelligent combiner boxes, but also can realize separating and uniting control of each branch loop. The invention further provides a photovoltaic system equipped with the combiner box.
Description
Technical field
Photovoltaic power generation technology of the present invention field, more particularly, particularly a kind of branch's controllable intelligent header box and a kind of photovoltaic system based on IGBT technology.
Background technology
Header box, as the electrical connection between photovoltaic module and combining inverter, offers the device of photovoltaic combining inverter after the direct current that solar cell is sent confluxes, and realizes measurement, protection and control to each duplexure.
The now high-end Intelligent photovoltaic combiner box on market, has realized the monitoring, warning of electric current to each duplexure, voltage and the communication with background system, but has not realized the automatic control to each duplexure, and this problem of bringing has:
1) while there are the abnormal conditions such as overcurrent at duplexure, device can only melt down fault loop excision by the fuse in loop, must manually change fuse and could recover loop operation after excision.
2) adopt fuse to realize branch's overcurrent protection, protection precision is not high.
3) cannot realize circuit breaker and the each duplexure in remote control deciliter header box.
Summary of the invention
In view of this, the invention provides a kind of branch's controllable intelligent header box and a kind of photovoltaic system based on IGBT technology, to address the above problem.
For achieving the above object, the invention provides following technical scheme:
Branch's controllable intelligent header box based on IGBT technology, comprising:
Casing is provided with the positive and negative busbar of direct current in described casing;
The access assembly being interconnected to form by IGBT control assembly and Hall element, the positive and negative busbar electrical connection of described access assembly and described direct current, described Hall element is for being connected with photovoltaic circuit;
Sensing system, described sensing system comprises sampling component, Temperature Humidity Sensor and Master Control Unit, described sensing system is arranged in casing, described sampling component and the electrical connection of described access assembly, described sampling component, described Temperature Humidity Sensor are all connected with described Master Control Unit signal;
Background controller;
Communications component, described Master Control Unit is connected with described background controller signal by described communications component.
Preferably, the present invention also includes lightning protection component, and described lightning protection component is arranged between described access assembly and the positive and negative busbar of described direct current.
Design by said structure, branch's controllable intelligent header box based on IGBT technology provided by the invention, in each Zhi Huilu, increase an IGBT who is controlled by CPU (insulated gate bipolar transistor) switch, this Novel busbar box, except having the function (realizing each duplexure current/voltage monitoring, ambient temperature and humidity monitoring, lightning protection counnter attack and and Background communication) of general intelligence header box, can also be realized deciliter control to each duplexure.
The present invention also provides a kind of photovoltaic system, includes many independently photovoltaic cell groups, also includes the branch's controllable intelligent header box based on IGBT technology described above; Described branch's controllable intelligent header box based on IGBT technology includes access assembly, and described access assembly comprises Hall element, and described Hall element includes multiple, the setting corresponding to described photovoltaic cell group of described Hall element; Described Hall element is arranged on the cable of described photovoltaic cell group.
This photovoltaic system is owing to being provided with above-mentioned header box, and its advantage having is:
1, remote control and manually turn on and off on the spot each duplexure and main breaker respectively;
2, branch's overcurrent definite value can be set respectively, automatically disconnect duplexure when out-of-limit detecting;
3, the IGBT switch in loop can replace DC fuse and the counnter attack diode in conventional header box, and overall cost is better than normal procedure intelligent header box.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the component composition schematic diagram of the branch's controllable intelligent header box based on IGBT technology in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, Fig. 1 is the component composition schematic diagram of the branch's controllable intelligent header box based on IGBT technology in an embodiment of the present invention.
Branch's controllable intelligent header box based on IGBT technology provided by the invention is by casing 1 and be arranged on communications component 5 in casing 1, display module, local operation control system, Master Control Unit 4, IGBT control assembly 2, sampling component, Hall element 3, outlet breaker, lightning protection component 6, Temperature Humidity Sensor etc. and form.
In large-scale photovoltaic system, include many independently photovoltaic cell group 7 branch roads, the present invention is based on the concrete structure that above-mentioned design is arranged in photovoltaic system and be:
1) each road photovoltaic cell group 7 was ganged up IGBT control assembly 2, Hall element 3 accesses the positive and negative busbar of direct current in case, and after confluxing, through outlet breaker output, the lightning protection component 6 being connected between positive and negative busbar is mainly that thunderbolt is exempted to make in protection loop.
2) sampling component gathers the current signal of each duplexure by Hall element 3, gathers by Temperature Humidity Sensor.
Ambient temperature in header box and moisture signal, and sampled data is sent to Master Control Unit 4.
3) communications component 5 is realized host computer and intelligent junction box communication, and the parameters such as the total voltage after confluxing in case, total current, each branch current, humiture, IGBT on off state are sent to background monitoring main frame in real time.Receive distant place operations staff deciliter outlet breaker or the each IGBT of branch switch command, and send Master Control Unit 4 to, automatically perform respective operations by Master Control Unit 4.
4) IGBT control assembly 2 is serially connected in the middle of each duplexure, sends the control end of ON-and OFF-command signal to IGBT when Master Control Unit 4 monitors when duplexure electric current is greater than overcurrent protection set point, disconnects this duplexure, realizes overcurrent protection function.Generate operate time, current value event simultaneously, and be sent to host computer.
5) local operation control system and display module are mainly available to operation maintenance personnel at the other operation of intelligent junction box and display interface.
Design by said structure, branch's controllable intelligent header box based on IGBT technology provided by the invention, in each Zhi Huilu, increase an IGBT who is controlled by CPU (insulated gate bipolar transistor) switch, this Novel busbar box, except having the function (realizing each duplexure current/voltage monitoring, ambient temperature and humidity monitoring, lightning protection counnter attack and and Background communication) of general intelligence header box, can also be realized deciliter control to each duplexure.
The present invention also provides a kind of photovoltaic system, includes many independently photovoltaic cell groups 7, also includes the branch's controllable intelligent header box based on IGBT technology described above; Branch's controllable intelligent header box based on IGBT technology includes access assembly, and access assembly comprises Hall element 3, and Hall element 3 includes multiple, Hall element 3 setting corresponding to photovoltaic cell group 7; Hall element 3 is arranged on the cable of photovoltaic cell group 7.
This photovoltaic system is owing to being provided with above-mentioned header box, and its advantage having is:
1, remote control and manually turn on and off on the spot each duplexure and main breaker respectively;
2, branch's overcurrent definite value can be set respectively, automatically disconnect duplexure when out-of-limit detecting;
3, the IGBT switch in loop can replace DC fuse and the counnter attack diode in conventional header box, and overall cost is better than normal procedure intelligent header box.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. the branch's controllable intelligent header box based on IGBT technology, is characterized in that, comprising:
Casing (1) is provided with the positive and negative busbar of direct current in described casing;
The access assembly being interconnected to form by IGBT control assembly (2) and Hall element (3), the positive and negative busbar electrical connection of described access assembly and described direct current, described Hall element is for being connected with photovoltaic circuit;
Sensing system, described sensing system comprises sampling component, Temperature Humidity Sensor and Master Control Unit (4), described sensing system is arranged in casing, described sampling component and the electrical connection of described access assembly, described sampling component, described Temperature Humidity Sensor are all connected with described Master Control Unit signal;
Background controller;
Communications component (5), described Master Control Unit is connected with described background controller signal by described communications component.
2. the branch's controllable intelligent header box based on IGBT technology according to claim 1, is characterized in that,
Also include lightning protection component (6), described lightning protection component is arranged between described access assembly and the positive and negative busbar of described direct current.
3. a photovoltaic system, includes many independently photovoltaic cell groups (7), it is characterized in that,
Also include the branch's controllable intelligent header box based on IGBT technology as claimed in claim 1 or 2;
Described branch's controllable intelligent header box based on IGBT technology includes access assembly, and described access assembly comprises Hall element, and described Hall element includes multiple, the setting corresponding to described photovoltaic cell group of described Hall element;
Described Hall element is arranged on the cable of described photovoltaic cell group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348341.8A CN104158484A (en) | 2014-07-21 | 2014-07-21 | Branch-controllable intelligent combiner box based on IGBT technology, and photovoltaic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348341.8A CN104158484A (en) | 2014-07-21 | 2014-07-21 | Branch-controllable intelligent combiner box based on IGBT technology, and photovoltaic system |
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| Publication Number | Publication Date |
|---|---|
| CN104158484A true CN104158484A (en) | 2014-11-19 |
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|---|---|---|---|
| CN201410348341.8A Pending CN104158484A (en) | 2014-07-21 | 2014-07-21 | Branch-controllable intelligent combiner box based on IGBT technology, and photovoltaic system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008008505A1 (en) * | 2008-02-11 | 2009-08-13 | Siemens Aktiengesellschaft | Photo voltaic-sub generator-junction box for photo voltaic-system, has electronic control unit connected with electronic circuit element to activate and deactivate associated photo voltaic-strand lines |
| CN102820809A (en) * | 2012-09-15 | 2012-12-12 | 无锡隆玛科技股份有限公司 | Mini-type intelligent photovoltaic junction box |
| CN202798163U (en) * | 2012-09-25 | 2013-03-13 | 广东易事特电源股份有限公司 | Intelligent photovoltaic combiner box |
| CN203242646U (en) * | 2013-01-05 | 2013-10-16 | 郑州星海科技有限公司 | Miniature intelligent photovoltaic combiner box with wireless transmission module |
-
2014
- 2014-07-21 CN CN201410348341.8A patent/CN104158484A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008008505A1 (en) * | 2008-02-11 | 2009-08-13 | Siemens Aktiengesellschaft | Photo voltaic-sub generator-junction box for photo voltaic-system, has electronic control unit connected with electronic circuit element to activate and deactivate associated photo voltaic-strand lines |
| CN102820809A (en) * | 2012-09-15 | 2012-12-12 | 无锡隆玛科技股份有限公司 | Mini-type intelligent photovoltaic junction box |
| CN202798163U (en) * | 2012-09-25 | 2013-03-13 | 广东易事特电源股份有限公司 | Intelligent photovoltaic combiner box |
| CN203242646U (en) * | 2013-01-05 | 2013-10-16 | 郑州星海科技有限公司 | Miniature intelligent photovoltaic combiner box with wireless transmission module |
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Application publication date: 20141119 |