CN205051579U - Intelligence photovoltaic frequency control ware - Google Patents
Intelligence photovoltaic frequency control ware Download PDFInfo
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- CN205051579U CN205051579U CN201520865153.2U CN201520865153U CN205051579U CN 205051579 U CN205051579 U CN 205051579U CN 201520865153 U CN201520865153 U CN 201520865153U CN 205051579 U CN205051579 U CN 205051579U
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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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model provides an intelligence photovoltaic frequency control ware, including power module, sampling module, control module, drive module, communication module, power module etc, photovoltaic module's output is connected to the input of power module, the sampling module is equipped with sampling circuit, sampling circuit's output is connected control module, control module is equipped with MCU control circuit, the power module is equipped with the switch tube, drive module connects the switch tube of power module, communication module realizes control module and backstage monitored control system's two -way feedback. Through the utility model discloses can carry out maximum power point to every block group spare and track, reduce the power loss, the fungible terminal box is used, also can be external in terminal box rear end use, realize dual bypass protection, avoid the hot spot effect through bypass diode, avoid single subassembly trouble or became invalid influence the normal work in whole piece group cluster and even power station through the bypass switch, cause a power loss.
Description
Technical field
The utility model belongs to solar photovoltaic technology field, particularly relates to a kind of Intelligent photovoltaic power governor.
Background technology
In the scheme of tradition power station, photovoltaic module process is confluxed, inverter, finally access box type transformer boosting, electric energy is delivered to booster stations be connected to the grid, MPPT function i ntegration is in inverter, inverter MPPT way is few, be subject to the impact of on-the-spot various complex situations, cause the loss of energy output, such as because of assembly do not mate, dust, shade block, the reason such as assembly temperature rise or breakage (hot spot effect), photovoltaic system actual power generation 10%-25% lower than theoretical value, wherein hot spot effect even can have a strong impact on assembly property and life-span thereof.
In addition, when power station is installed or is tried out, reversal connection assembly or power optimization device can cause damage, greatly reduce its useful life, but in prior art, anti-reverse function is still based on hardware safety, and traditional power optimization device does not have communication module yet, when generating assembly or power optimization device fault, need to carry out malfunction elimination to every block assembly or each power optimization device, maintenance work amount is huge, and need the operation stopping corresponding whole piece group string and even whole power station, considerably increase cost.
Utility model content
In view of this, the utility model proposes a kind of Intelligent photovoltaic power governor, maximum power point tracking can be carried out to every block assembly, reduce the power loss that a variety of causes such as assembly does not mate, dust, shade block, assembly temperature rise or breakage (hot spot effect) cause.
For achieving the above object, the technical solution of the utility model is achieved in that a kind of Intelligent photovoltaic power governor, comprises power model, sampling module, control module, driver module, communication module, power module; Described power module connects other each module provides working power; The input of described power model connects the output of photovoltaic module; Described sampling module is provided with sample circuit, and the output of described sample circuit connects described control module; Described control module is provided with MCU control circuit, and the output of described MCU control circuit connects described driver module; Described power model is provided with switching tube, and described driver module connects the switching tube of described power model; Described communication module connects described control module, realizes the Two-way Feedback of control module and background monitoring system.
Further, described power model comprises rectifier diode, power MOS pipe, afterflow inductance and several filter capacitors, and described power MOS pipe is connected with described driver module as switching tube.
Further, described driver module comprises second signal amplifying circuit; One-level amplifying circuit carries out level conversion; Second amplifying circuit carries out the amplification of current signal.
Further, described sample circuit comprises current sampling circuit, voltage sampling circuit and temperature sampling circuit.
Further, described current sampling circuit is provided with directional current sensor, in order to induced electricity flow valuve, judges the sense of current.
Further, described communication module comprises wireless communication module and/or direct current power carrier communication module.
Further, described Intelligent photovoltaic power governor also comprises bypass module; Described bypass module comprises bypass diode and by-pass switch, and described bypass diode is connected in parallel between input the two poles of the earth of power model, and described by-pass switch is connected in parallel between the negative input end of power model and the negative output terminal of power model.
Further, described Intelligent photovoltaic power governor is also provided with junction box module, and described junction box module is provided with splicing ear, and the busbar of photovoltaic module is directly connected to splicing ear.
Relative to prior art, Intelligent photovoltaic power governor described in the utility model has following advantage:
(1) alternative terminal box uses, and also can be connected on terminal box rear end outward and use;
(2) dual bypass protection, avoids hot spot effect by bypass diode, avoids single component trouble or failure to affect the normal work in whole piece group string and even power station, cause energy output to lose by by-pass switch;
(3) real-time sampled data transmission and monitoring, quick position is to problem component or power optimization device;
(4) combined by software restraint and reach anti-reverse function;
(5) the MPPT function of component level is realized, metal-oxide-semiconductor switch off time is controlled by the dutyfactor value arranging PWM, thus carry out the tracking of maximum power point, the power loss that assembly does not mate, dust, shade block, a variety of causes such as assembly temperature rise or breakage (hot spot effect) causes can be reduced.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the adjuster mode of connection one in the utility model embodiment;
Fig. 3 is the adjuster mode of connection two in the utility model embodiment.
Embodiment
It should be noted that, when not conflicting, the feature in embodiment of the present utility model and embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
The utility model Intelligent photovoltaic power governor comprises the circuit board of upper cover, drain pan and optional junction box module, wherein circuit board as shown in Figure 1, comprise 7 modules, be respectively power model, control module, driver module, communication module, sampling module, power module and bypass module, wherein power module provides working power for other modules all, and the input of power model connects the output of photovoltaic module.
Sampling module in parallel between the both positive and negative polarity of described power model input, the input of sampling module link control module, sampling module sends the information collected to control module;
Described bypass module comprises bypass diode and by-pass switch, and bypass diode is connected in parallel between the both positive and negative polarity of the input of power model, and bypass switching circuit is connected in parallel between input cathode and negative pole of output end;
The output of described control module connects the input of driver module, and the output of driver module connects power model;
Described control module is connecting communication module simultaneously, realizes communication and monitoring function by communication module.
According to Fig. 1, each module and function thereof are described in detail below:
1, control module
Comprise MCU control circuit.Input is 3V3_MCU, and output is VCT.
Control module is realized the tracking of photovoltaic module maximum power by the data that collect and carries out the protections such as overvoltage, overcurrent, counnter attack by judgement of sampling; and cut-off regulation output voltage and current by pulse modulation technology control switch pipe, enable assembly remain operating in maximum power to reach.
2, power model:
Comprise rectifier diode, power MOS pipe, afterflow inductance and several filter capacitors.Input is PV+, PV-, and output is OUT+, OUT-.
During power MOS pipe path, afterflow inductance store electrical energy; During power MOS pipe open circuit, afterflow inductance and rectifier diode, load form loop, and release electric energy, to load supplying.
3, driver module
Comprise second signal amplifying circuit.Input is VCC_12V, and output is power circuit.
One-level amplifying circuit carries out level conversion, and second amplifying circuit carries out the amplification of current signal.
4, power module
Comprise PV voltage and turn 12V power circuit and 12V turns 3.3V power circuit.12V power circuit input is PV+, and output is VCC_12V.3.3V power circuit input is VCC_12V, and output comprises VCC_3V3,3V3_MCU, 3V3_TEMP, 3V3_OP.
12V power supply is that analog circuit (power circuit metal-oxide-semiconductor, driver module) provides 12V voltage.3.3V power supply is that digital circuit (communication module, control module) and analog circuit (sampling module) provide 3.3V voltage.
5, sampling module
Comprise current sampling circuit, voltage sampling circuit and temperature sampling circuit.Current sampling circuit is inverse proportion operational amplification circuit, comprises operational amplifier, secondary RC filter circuit etc.; Input is PV-, 3V3_OP, and output is I_DET.Voltage sampling circuit comprises operational amplifier, divider resistance etc.; Input is PV+, and output is V_DET.Temperature sampling circuit comprises thermistor; Input is 3V3_TEMP, and output is NTC.
In current sampling circuit, operational amplifier amplification voltage signal; Filter capacitor filter ripple, stabilization signal.In voltage sampling circuit, divider resistance is to PV voltage, and for MCU provides the magnitude of voltage being no more than 3.3V, operational amplifier plays the effect of stabilization signal.In temperature sampling circuit, thermistor changes voltage by change in resistance, for MCU provides temperature signal.
Current sampling circuit is provided with directional current sensor, in order to induced electricity flow valuve, judges the sense of current.
6, communication module
Comprise wireless communications chips, power supply switch tube etc.Input is VCC_3V3, and output is SPI communication bus.
Power supply switch tube communication control module break-make.The data of control module are realized Two-way Feedback by wireless telecommunications and background monitoring system by communication module.
7, bypass module
Comprise bypass diode and by-pass switch etc.Input is PV-, and output is OUT-.
Intelligent photovoltaic power governor possesses dual bypass protection function: (1) can switch to bypass when component failures or a certain module of battery component break down; for whole crosstalk stream provides Article 2 passage, prevent hot spot and other normal power generation unit are had an impact.(2) when adjuster breaks down, implement physical bypass by by-pass switch to optimizer, now power governor still can be used as terminal box use.
As mentioned above, Intelligent photovoltaic power governor of the present utility model can carry out maximum power point tracking to every block assembly, can reduce the power loss that assembly does not mate, dust, shade block, a variety of causes such as assembly temperature rise or breakage (hot spot effect) causes.
Intelligent photovoltaic power governor has component level communication and monitoring function, communication module set up by power regulator circuitry plate, the generating data by wireless communication module or each assembly of direct current power carrier transmission can be selected, the operation conditions of photovoltaic system is monitored in real time, alarm can be sent in time when breaking down, quick position faulty components or power governor, greatly reduce the difficulty of investigation fault, reduce investigation cost.
Intelligent photovoltaic power regulator circuitry plate there is directional current sensor, can induced electricity flow valuve, judge the sense of current.This power governor provides reverse connecting protection, and communication and supervisory control system real-time Transmission also show reversal value, and during assembly reversal connection, electric current is reverse, turns off, reach the effect of protection assembly by software manipulation metal-oxide-semiconductor.
Intelligent photovoltaic power governor can realize the MPPT of component level, controls metal-oxide-semiconductor switch off time by the dutyfactor value arranging PWM, thus carries out the tracking of maximum power point.
In addition to the above, Intelligent photovoltaic power governor of the present utility model, reserved junction box module on circuit boards, (1) as shown in Figure 2, there is provided alternative terminal box for newly-built photovoltaic plant and there is the product of power optimization adjustment, the busbar of photovoltaic module can directly access on 4 splicing ears of connector, and when there is hot spot effect, power governor can implement bypass by bypass diode to corresponding substring, and other substrings of assembly normally work.(2) as shown in Figure 3, providing the photovoltaic plant of existing terminal box can the photovoltaic power adjuster of direct plug-in access.
Technique effect of the present utility model is as follows:
1. alternative terminal box uses, and also can be connected on terminal box rear end outward and use;
2. dual bypass protection, avoids hot spot effect by bypass diode, avoids single component trouble or failure to affect the normal work in whole piece group string and even power station, cause energy output to lose by by-pass switch;
3. real-time sampled data transmission and monitoring, quick position is to problem component or power optimization device;
4. combined by software restraint and reach anti-reverse function;
5. component level MPPT function.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (8)
1. an Intelligent photovoltaic power governor, is characterized in that: comprise power model, sampling module, control module, driver module, communication module, power module;
Described power module connects other each module provides working power;
The input of described power model connects the output of photovoltaic module;
Described sampling module is provided with sample circuit, and the output of described sample circuit connects described control module;
Described control module is provided with MCU control circuit, and the output of described MCU control circuit connects described driver module;
Described power model is provided with switching tube, and described driver module connects the switching tube of described power model;
Described communication module connects described control module, realizes the Two-way Feedback of control module and background monitoring system.
2. a kind of Intelligent photovoltaic power governor according to claim 1, it is characterized in that: described power model comprises rectifier diode, power MOS pipe, afterflow inductance and several filter capacitors, and described power MOS pipe is connected with described driver module as switching tube.
3. a kind of Intelligent photovoltaic power governor according to claim 1, is characterized in that: described driver module comprises second signal amplifying circuit; One-level amplifying circuit carries out level conversion; Second amplifying circuit carries out the amplification of current signal.
4. a kind of Intelligent photovoltaic power governor according to claim 1, is characterized in that: described sample circuit comprises current sampling circuit, voltage sampling circuit and temperature sampling circuit.
5. a kind of Intelligent photovoltaic power governor according to claim 4, is characterized in that: described current sampling circuit is provided with directional current sensor, in order to induced electricity flow valuve, judges the sense of current.
6. a kind of Intelligent photovoltaic power governor according to claim 1, is characterized in that: described communication module comprises wireless communication module and/or direct current power carrier communication module.
7. a kind of Intelligent photovoltaic power governor according to claim 1, is characterized in that: described Intelligent photovoltaic power governor also comprises bypass module; Described bypass module comprises bypass diode and by-pass switch, and described bypass diode is connected in parallel between input the two poles of the earth of power model, and described by-pass switch is connected in parallel between the negative input end of power model and the negative output terminal of power model.
8. a kind of Intelligent photovoltaic power governor according to any one of claim 1 to 7, it is characterized in that: described Intelligent photovoltaic power governor is also provided with junction box module, described junction box module is provided with splicing ear, and the busbar of photovoltaic module is directly connected to splicing ear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520865153.2U CN205051579U (en) | 2015-10-30 | 2015-10-30 | Intelligence photovoltaic frequency control ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520865153.2U CN205051579U (en) | 2015-10-30 | 2015-10-30 | Intelligence photovoltaic frequency control ware |
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| Publication Number | Publication Date |
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| CN205051579U true CN205051579U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520865153.2U Expired - Fee Related CN205051579U (en) | 2015-10-30 | 2015-10-30 | Intelligence photovoltaic frequency control ware |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245104A (en) * | 2015-10-30 | 2016-01-13 | 江阴万事兴技术有限公司 | Intelligent photovoltaic power adjustor and adjusting method |
-
2015
- 2015-10-30 CN CN201520865153.2U patent/CN205051579U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245104A (en) * | 2015-10-30 | 2016-01-13 | 江阴万事兴技术有限公司 | Intelligent photovoltaic power adjustor and adjusting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214434 Jiangsu province Jiangyin city streets east of Golden Hill Road No. 201 Cyberport Powerise Industrial Park building A on the third floor of the South Patentee after: Jiangyin Binlong Technology Co., Ltd. Address before: Jiangyin city streets east of golden hill road 214434 Jiangsu city of Wuxi province No. 201 Cyberport Powerise Industrial Park building A on the third floor of the South Patentee before: Jiangyin EVERISE Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190103 Address after: 610500 R&D Building No. 1 Jinhe Industrial Park, East Industrial Zone, Xindu District, Chengdu City, Sichuan Province Patentee after: Chengdu Chuangda Automation Control Co., Ltd. Address before: 214434 South of 3rd Floor, Block A, Chuangzhi Industrial Park, 201 Jinshan Road, Chengdong Street, Jiangyin City, Jiangsu Province Patentee before: Jiangyin Binlong Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20201030 |
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| CF01 | Termination of patent right due to non-payment of annual fee |