CN203933532U - A kind of photovoltaic system fault electric arc detects header box - Google Patents
A kind of photovoltaic system fault electric arc detects header box Download PDFInfo
- Publication number
- CN203933532U CN203933532U CN201420338816.0U CN201420338816U CN203933532U CN 203933532 U CN203933532 U CN 203933532U CN 201420338816 U CN201420338816 U CN 201420338816U CN 203933532 U CN203933532 U CN 203933532U
- Authority
- CN
- China
- Prior art keywords
- module
- electric arc
- circuit breaker
- fault electric
- photovoltaic system
- 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.)
- Expired - Fee Related
Links
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
Photovoltaic system fault electric arc of the present utility model detects header box, is mainly made up of casing, controller module, DC circuit breaker, Surge Protector, photo-voltaic power supply module, fuse module and water joint.Controller module includes power module of voltage regulation, current transformer module, signal condition module, DSP module, key-press module, communication module, demonstration and alarm module and drive control module.In controller module, current transformer module samples after current signal, processes and the computing of DSP module analysis through signal conditioning circuit, and whether failure judgement electric arc produces.If any fault electric arc signal, control and show and report to the police, and feed back fault-signal by communication module to host computer, control DC circuit breaker tripping operation simultaneously and cut off photovoltaic loop, thereby reach the effect of eliminating fault electric arc.The utility model can detect the fault electric arc of photovoltaic system, and eliminates electric arc by cut-off loop, can prevent the electric accident and the safety problem that cause because of electric arc.
Description
Technical field
The utility model relates to a kind of photovoltaic combiner box, and especially a kind of photovoltaic system fault electric arc detects header box.
Background technology
Photovoltaic system wiring is complicated, branch road is many, distance, inevitably has the factors such as carious tooth class animal bites power-off cable, cable natural aging or external force and causes the destruction to cable.System is pressed and the working group crosstalk different with cell piece array of cell panel material and is flowed not etc., when the group string in work is because some situation causes the fracture of wire or the loose contact of some contact, will produce fault electric arc, when serious, can cause electrical fire.Increasing power station accident shows that the safety and stablization problem in the power station that fault electric arc causes is a difficult problem.
Utility model content
The utility model, in order to solve above-mentioned deficiency, provides a kind of photovoltaic system fault electric arc and detects header box.
In order to achieve the above object, photovoltaic system fault electric arc described in the utility model detects header box and is achieved in that
A kind of photovoltaic system fault electric arc detects header box, is mainly made up of casing, controller module, DC circuit breaker, Surge Protector, photo-voltaic power supply module, fuse module and water joint.Controller module, DC circuit breaker, Surge Protector, photo-voltaic power supply module, fuse module and water joint are fixed on casing.Controller module is core cell of the present utility model.
Controller module includes power module of voltage regulation, current transformer module, signal condition module, DSP module, keyboard input module, communication module, demonstration and alarm module and drive control module.
Power module of voltage regulation input is connected with photo-voltaic power supply module, current transformer module, signal condition module, DSP module, keyboard input module, communication module, demonstration and alarm module and drive control module in output and controller module, for modules provides isolation stable operating voltage.
Current transformer module is connected with signal condition module, and the current signal that current transformer module samples is sent to signal condition module.Signal condition module is amplified the signal of receiving with filtering processing and is sent DSP module to.
DSP module is connected with alarm module, drive control module with signal condition module, keyboard input module, communication module, demonstration respectively.DSP module receives the signal of signal condition module, carries out mathematical computations and the analysis of waveform, when judging arc fault, occurs, and then reports to the police and protection action by demonstration and alarm module, drive control module.
Keyboard input module can be by carrying out the setting of parameter and checking of historical record with demonstration and coordinating of display screen in alarm module.
Display alarm module is made up of display screen, buzzer etc., and in the time having fault-signal, display screen shows dependent failure code, and buzzer sends alarm sound.
Communication module is connected with host computer, and the control command that can receive host computer is carried out relevant action then, also can transmit data and fault-signal to host computer.
Drive control module is connected with shunted exciter tripping formula DC circuit breaker, can control its adhesive and tripping operation, makes circuit breaker trip, cutoff circuit in the situation that protection needs.
The utility model obtain photovoltaic system fault electric arc detect header box, can detect the fault electric arc occurring in photovoltaic system, and control the tripping operation of circuit breaker, thus turn-off current loop, eliminate electric arc, prevent the photovoltaic system electric accident and the security of operation problem that cause because of fault electric arc.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Accompanying drawing 1 is system schematic of the present utility model.
Accompanying drawing 2 is the inside schematic diagram of the utility model controller module.
In accompanying drawing 1,1 is casing; 2 is controller module; 3 is DC circuit breaker; 4 is Surge Protector; 5 is photo-voltaic power supply module; 6 is fuse module; 7 is water joint.
In accompanying drawing 2,21 is power module of voltage regulation; 22 is current transformer module; 23 is signal condition module; 24 is DSP module; 25 is keyboard input module; 26 is communication module; 27 for showing and alarm module; 28 is drive control module.
Embodiment
Controller module 2, DC circuit breaker 3, Surge Protector 4, photo-voltaic power supply module 5, fuse module 6 on casing 1, are bolted.
DC circuit breaker 3 is the DC circuit breaker with shunted exciter tripping function, and its inner shunt release is connected with the drive control module 28 in controller module 2.
Surge Protector 4 is connected on the bus after photovoltaic group string confluxes, and in the time that extraneous interference produces suddenly peak current or voltage, can within the extremely short time, conducting shunt, thereby avoid the infringement of surge to other equipment in photovoltaic loop.
Photo-voltaic power supply module 5 is connected on the bus after photovoltaic group string confluxes, and the direct current that the unsettled photovoltaic DC electricity of high pressure can be converted into low pressure uses to controller module 2.
Fuse module 6 is connected in photovoltaic loop, as the protector of the short circuit of photovoltaic loop and overcurrent.
Water joint 7 is arranged on the bottom of casing 1, by knob fixed light hint, makes box sealing meet the requirements of waterproof effect.
In the present embodiment, core is controller module 2.Controller module 2 includes power module of voltage regulation 21, current transformer module 22, signal condition module 23, DSP module 24, keyboard input module 25, communication module 26, demonstration and alarm module 27 and drive control module 28.
Power module of voltage regulation 21 is connected with photo-voltaic power supply module 5, the direct current of photo-voltaic power supply module 5 is converted to the direct current of several roads isolation, for current transformer 22, signal condition module 23, DSP module 24, keyboard input module 25, communication module 26, demonstration and alarm module 27 and drive control module 28 provide stable DC electricity to export.
Current transformer module 22 can sample photovoltaic group string current signal, exports signal conditioning circuit 23 to.
Signal condition module 23 is amplified and filtering processing the group string current signal of input, passes to dsp controller module 24.
The signal that dsp controller module 24 receiving signal reason modules 23 send, analyzes and mathematical operation the waveform of input signal by specific algorithm, judges whether the generation of fault electric arc.Accurate algorithm can improve the success rate that fault electric arc detects, and reduces rate of false alarm.DSP module can also, to signal analysis computing, be obtained the current effective value when front loop simultaneously.When fault-free electric arc occurs, show with alarm module 27 and show the electric current of current each group string and the bus voltage value in loop, same host computer can be inquired about electric current and magnitude of voltage by communication module 26.
In the time that DSP module 24 detects that fault electric arc occurs, DSP module 24 is sent signal, and in demonstration and alarm module 27, display screen shows fault-signal, and buzzer sends alarm sound.And move and send fault-signal to upper owner by communication module 26, carry out photovoltaic system through the warning reminding O&M personnel on host computer and detect and maintenance.Control DC circuit breaker dropout tripping operation by drive control module 28 simultaneously, cut off the photovoltaic array loop that this header box is corresponding, thereby make arc extinction, prevent electrical safety accident.After O&M personnel detect normal or maintenance, the operation that powers on by host computer to this header box.
Keyboard input module 25 can by show with alarm module 27 in display screen coordinate the setting of carrying out parameter, as the address of equipment etc., the while also can be carried out the inquiry of data and failure logging in the past.
Further, controller module 2 can add some transducers, host computer can by communication inquire about at any time header box other running status, as the data of temperature, humidity and system leakage current and so on, just exceed in the present embodiment narration.
Listed a series of detailed description is only illustrating for feasibility execution mode of the present utility model above; they are not in order to limit protection range of the present utility model, all do not depart from any simple change that the utility model technical spirit does and modify and all should be included in protection range of the present utility model within.
Claims (4)
1. a photovoltaic system fault electric arc detects header box, mainly by casing, controller module, DC circuit breaker, Surge Protector, photo-voltaic power supply module, fuse module and water joint composition, wherein controller module, DC circuit breaker, Surge Protector, photo-voltaic power supply module, fuse module is fixed on casing, controller module respectively with photo-voltaic power supply module, DC circuit breaker is connected, it is characterized in that: described controller module includes power module of voltage regulation, current transformer module, signal condition module, DSP module, keyboard input module, communication module, demonstration and alarm module and drive control module, current transformer module, signal condition module, DSP module connect successively, keyboard input module, communication module, demonstration are connected with DSP module respectively with alarm module, drive control module.
2. detect header box according to the photovoltaic system fault electric arc described in claims 1, it is characterized in that: the power module of voltage regulation in described controller module is connected with photo-voltaic power supply module.
3. detect header box according to the photovoltaic system fault electric arc described in claims 1, it is characterized in that: the drive control module in described controller module is connected with DC circuit breaker.
4. detect header box according to the photovoltaic system fault electric arc described in claims 1, it is characterized in that: described DC circuit breaker is point excitation dropout type DC circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338816.0U CN203933532U (en) | 2014-06-24 | 2014-06-24 | A kind of photovoltaic system fault electric arc detects header box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338816.0U CN203933532U (en) | 2014-06-24 | 2014-06-24 | A kind of photovoltaic system fault electric arc detects header box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933532U true CN203933532U (en) | 2014-11-05 |
Family
ID=51829284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420338816.0U Expired - Fee Related CN203933532U (en) | 2014-06-24 | 2014-06-24 | A kind of photovoltaic system fault electric arc detects header box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203933532U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067945A (en) * | 2015-09-07 | 2015-11-18 | 苏州长风自动化科技有限公司 | Intelligent detection unit with direct-current arcing detection function and junction box |
| CN105790699A (en) * | 2016-04-26 | 2016-07-20 | 安徽灿邦电气有限公司 | Novel photovoltaic controller |
| CN109061422A (en) * | 2018-09-14 | 2018-12-21 | 江苏斯菲尔电气股份有限公司 | Electric instrument with fault electric arc detecting function |
| CN112332779A (en) * | 2020-10-23 | 2021-02-05 | 西安泰峰电器设备厂 | Photovoltaic lightning protection combiner box and control method |
| CN116094460A (en) * | 2023-02-28 | 2023-05-09 | 浙江兆芯电气科技有限公司 | Photovoltaic direct current fault arc protector |
-
2014
- 2014-06-24 CN CN201420338816.0U patent/CN203933532U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067945A (en) * | 2015-09-07 | 2015-11-18 | 苏州长风自动化科技有限公司 | Intelligent detection unit with direct-current arcing detection function and junction box |
| CN105790699A (en) * | 2016-04-26 | 2016-07-20 | 安徽灿邦电气有限公司 | Novel photovoltaic controller |
| CN109061422A (en) * | 2018-09-14 | 2018-12-21 | 江苏斯菲尔电气股份有限公司 | Electric instrument with fault electric arc detecting function |
| CN112332779A (en) * | 2020-10-23 | 2021-02-05 | 西安泰峰电器设备厂 | Photovoltaic lightning protection combiner box and control method |
| CN116094460A (en) * | 2023-02-28 | 2023-05-09 | 浙江兆芯电气科技有限公司 | Photovoltaic direct current fault arc protector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203933532U (en) | A kind of photovoltaic system fault electric arc detects header box | |
| CN204790407U (en) | A controlling means for electric energy meter batch meter | |
| CN205864361U (en) | A kind of Intelligent photovoltaic combiner box of band arcing monitoring function | |
| CN103308866A (en) | Direct current insulation on-line monitoring device of transformer substation | |
| CN202068238U (en) | Wind chassis type transformer protection and monitoring device | |
| CN204425271U (en) | There is the photovoltaic supervising device of arc-detection function | |
| CN201477173U (en) | Automatic detection module for power supply earth line failure | |
| CN204441216U (en) | A kind of overload-alarm circuit breaker | |
| CN202440103U (en) | Conveyer protective device | |
| CN203299991U (en) | Smoke/temperature alarm control system for power distribution cabinet | |
| CN203135418U (en) | Digital line protection, monitoring and control apparatus | |
| CN205247174U (en) | Power supply station uses autoalarm based on safe type of essence | |
| CN109633353A (en) | Quick flow-breaking system and electrical fire prevention method | |
| CN203911498U (en) | Distributed photovoltaic grid-connected protective equipment | |
| CN204947578U (en) | A kind of auxiliary protection device being applied to technical grade power electronic equipment | |
| CN205826162U (en) | A kind of fiber optic temperature analyser | |
| CN205643657U (en) | Computer protection device with on -line monitoring switching power supply life -span | |
| CN104020393A (en) | Single-phase grounding short-circuit fault positioning method of electrical network | |
| CN103972925B (en) | The grid-connected proterctive equipment of distributed photovoltaic | |
| CN203522154U (en) | Over-current protective device of frequency converter | |
| CN203287505U (en) | DC insulation online monitoring device for transformer substation | |
| CN205039533U (en) | Line protection measurement and control device | |
| CN201966572U (en) | Relay protection device | |
| CN203691312U (en) | Chopper speed-regulating system of mining electric locomotive | |
| CN2865098Y (en) | Lightening arrester for power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180423 Address after: 411100 1 Xingye Avenue, Jiuhua Economic District, Xiangtan, Hunan Patentee after: HUNAN XINGYE GREEN POWER TECHNOLOGY CO.,LTD. Address before: Jinding town science and Technology Innovation Coast Zone in Guangdong province Zhuhai City Jinzhu road 519085 No. 9 Co-patentee before: ZHUHAI SINGYES RENEWABLE ENERGY TECHNOLOGY Co.,Ltd. Patentee before: ZHUHAI SINGYES GREEN BUILDING TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |