CN206164470U - MPPT type intelligence terminal box based on PSOC - Google Patents

MPPT type intelligence terminal box based on PSOC Download PDF

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Publication number
CN206164470U
CN206164470U CN201621006864.5U CN201621006864U CN206164470U CN 206164470 U CN206164470 U CN 206164470U CN 201621006864 U CN201621006864 U CN 201621006864U CN 206164470 U CN206164470 U CN 206164470U
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China
Prior art keywords
psoc
mppt
buckboost
terminal box
current circuit
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CN201621006864.5U
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Chinese (zh)
Inventor
杨朝辉
吴庆彬
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WUXI LONGMA TECHNOLOGY Co Ltd
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WUXI LONGMA TECHNOLOGY Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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Abstract

The utility model provides a based on PSOC MPPT type intelligence terminal box, including test input voltage / current circuit, buckBoost topological structure, PSOC chip, pulse control circuit, detection output voltage current circuit and dc -to -ac converter, the input of photovoltaic cell's output access terminal box, the input of terminal box is connected with test input voltage / current circuit, buckBoost topological structure's input and PSOC chip, the PSOC chip passes through pulse control circuit and is connected with buckBoost topological structure, buckBoost topological structure's output and detection output voltage current circuit and dc -to -ac converter are connected, the dc -to -ac converter is connected with the PSOC chip, this intelligence terminal box adopts special PSOC chip, and built -in MPPT algorithm, the instruction of receiving the dc -to -ac converter simultaneously, accomplish step down, step up, the bypass mode, improved the matching between the photovoltaic module and the problem of the system efficiency reduction that arouses because illumination is inhomogeneous.

Description

A kind of MPPT type intelligent wiring boxes based on PSOC
Technical field
The utility model is related to a kind of terminal box of solar module, specially a kind of to be based on PSOC MPPT type intelligence Energy terminal box, belongs to photovoltaic generating system applied technical field.
Background technology
The most basic unit of photovoltaic generating system is photovoltaic module, and a typical photovoltaic module is then have solar-electricity Pond plate, component blocks, protective glass and connection box set into, intelligent wiring box Main Function be the electric power that produces in solar cell with Outside line connects, and intelligent wiring box can optimize the power output of every piece of photovoltaic module, be that each photovoltaic module is independently held Row maximum power point tracking(MPPT), it is the key equipment in photovoltaic generation optimization system.It has ceiling capacity collection conversion Function, data acquisition function and communication function.It is adapted to be applied in the grid-connected photovoltaic power generation system of different scales.
At present, between photovoltaic module matching and the problem of the system effectiveness reduction caused because uneven illumination is even is outstanding For obvious, the output electric energy of photovoltaic system is greatly reduced.
The content of the invention
The utility model provides a kind of based on PSOC MPPT type intelligent wiring boxes, and the intelligent wiring box adopts special PSOC Chip, and built-in MPPT algorithm, while receiving the instruction of inverter, complete to be depressured, boost, bypass mode, improve photovoltaic group The problem of matching and the system effectiveness reduction caused because uneven illumination is even between part.
To realize above technical purpose, the technical solution adopted in the utility model is:One kind is based on PSOC MPPT type intelligence Energy terminal box, including detection input voltage/current circuit, BuckBoost topological structures, PSOC chips, pulse control circuit, inspection Survey output voltage/electric current circuit and inverter, the input of the output end thereto of photovoltaic cell, the terminal box it is defeated Enter end to be connected with detection input voltage/current circuit, the input of BuckBoost topological structures and PSOC chips, the PSOC Chip is connected by pulse control circuit with BuckBoost topological structures, output end and the inspection of the BuckBoost topological structures Output voltage/electric current circuit and inverter connection are surveyed, the inverter is connected with PSOC chips.
Further, the PSOC chips(3)MPPT tracks of device is built-in with, the MPPT tracks of device is calculated using MPPT Method.
Further, the inverter(6)With PSOC chips(3)Connection refers to inverter(6)With PSOC chips(3)Interior MPPT tracks of device communicates.
Further, terminal box has three kinds of mode of operations:Boost mode, decompression mode and bypass mode.
From the above, it can be seen that the utility model has compared with prior art following beneficial effect:
(1)Using special PSOC chips, built-in MPPT algorithm, improve matching between photovoltaic module and due to illumination not The problem that system effectiveness that is uniform and causing is reduced;
(2)Based on buckbooost topological structures, by certain control algolithm module can be made to be operated in decompression mode, rise Die pressing type, direct mode operation and bypass diode pattern.
Description of the drawings
Fig. 1 is principle framework figure of the present utility model.
Description of reference numerals:1- detection input voltage/current circuit, 2-BuckBoost topological structures, 3-PSOC chips, 4- pulse control circuits, 5- detection output voltage/electric current circuits, 6- inverters, 7- photovoltaic cells.
Specific embodiment
With reference to concrete accompanying drawing, the utility model is described in further detail.
With reference to the accompanying drawings shown in 1, one kind is based on PSOC MPPT type intelligent wiring boxes, including detection input voltage/electric current electricity Road 1, BuckBoost topological structures 2, PSOC chips 3, pulse control circuit 4, detection output voltage/electric current circuit 5 and inverter 6, the input of the output end thereto of photovoltaic cell 7, input and the detection input voltage/electric current electricity of the terminal box Road 1, the input of BuckBoost topological structures 2 and PSOC chips 3 connect, and the PSOC chips 3 pass through pulse control circuit 4 It is connected with BuckBoost topological structures 2, output end and the detection output voltage/electric current electricity of the BuckBoost topological structures 2 Road 5 and inverter 6 connect, and the inverter 6 is connected with PSOC chips 3.
The PSOC chips 3 are built-in with MPPT tracks of device, and the MPPT tracks of device adopts MPPT algorithm.
The inverter 6 is connected with PSOC chips 3 and refers to that inverter 6 communicates with the MPPT tracks of device in PSOC chips 3.
Terminal box has three kinds of mode of operations:Boost mode, decompression mode and bypass mode.
1)When the output current of photovoltaic module is less than the output current of photovoltaic module string, photovoltaic module module would operate in drop Die pressing type;
2)When the power output of part photovoltaic module in photovoltaic module string it is less, the photovoltaic module output current of another part More than the output current of photovoltaic module string, then the photovoltaic module module of another part would operate in boost mode.
3)When photovoltaic module is operated on maximum power point, and photovoltaic module output current is approximately equal to photovoltaic module string During output current, photovoltaic module module would operate in pass-through state.
Utility model works principle is:The current/voltage of the output of photovoltaic cell 7 accesses BuckBoost topological structures 2 Input, detection input voltage/current circuit 1 is used for the Current Voltage value of the input for detecting BuckBoost topological structures 2 simultaneously PSOC chips 3 are passed to, the control BuckBoost of 3 driving pulse control circuit of PSOC chips 4 topological structures 2 complete power conversion, Detection output voltage/electric current circuit 5 is used for the Current Voltage value of the output end for detecting BuckBoost topological structures 2 and feeds back to PSOC chips 3, realize MPPT maximum power point tracking, and then improve the matching between photovoltaic module and system conversion efficiency reduces Problem;PSOC chips 3 receive the instruction of inverter 6, and by built-in MPPT algorithm the defeated of BuckBoost topological structures 2 is controlled Go out power, and then control module is operated in decompression mode, boost mode, direct mode operation.
The utility model and embodiments thereof are described above, the description does not have restricted, shown in accompanying drawing Also it is one of embodiment of the present utility model, actual structure is not limited thereto.If the ordinary skill people of this area Member is enlightened by it, in the case where objective is created without departing from the utility model, is designed and the technical scheme without creative Similar frame mode and embodiment, all should belong to protection domain of the present utility model.

Claims (4)

1. a kind of MPPT type intelligent wiring boxes based on PSOC, including detection input voltage/current circuit(1)、BuckBoost Topological structure(2), PSOC chips(3), pulse control circuit(4), detection output voltage/electric current circuit(5)And inverter(6), The input of the output end thereto of photovoltaic cell, input and the detection input voltage/current circuit of the terminal box (1), BuckBoost topological structures(2)Input and PSOC chips(3)Connection, the PSOC chips(3)By Pulse Width Control Circuit(4)With BuckBoost topological structures(2)Connection, the BuckBoost topological structures(2)Output end with detection output Voltage/current circuit(5)And inverter(6)Connection, the inverter(6)With PSOC chips(3)Connection.
2. a kind of MPPT type intelligent wiring boxes based on PSOC according to claim 1, it is characterised in that:The PSOC Chip(3)MPPT tracks of device is built-in with, the MPPT tracks of device adopts MPPT algorithm.
3. a kind of MPPT type intelligent wiring boxes based on PSOC according to claim 1, it is characterised in that:The inversion Device(6)With PSOC chips(3)Connection refers to inverter(6)With PSOC chips(3)Interior MPPT tracks of device communication.
4. a kind of MPPT type intelligent wiring boxes based on PSOC according to claim 1, it is characterised in that:Terminal box has Three kinds of mode of operations:Boost mode, decompression mode and bypass mode.
CN201621006864.5U 2016-08-30 2016-08-30 MPPT type intelligence terminal box based on PSOC Active CN206164470U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621006864.5U CN206164470U (en) 2016-08-30 2016-08-30 MPPT type intelligence terminal box based on PSOC

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621006864.5U CN206164470U (en) 2016-08-30 2016-08-30 MPPT type intelligence terminal box based on PSOC

Publications (1)

Publication Number Publication Date
CN206164470U true CN206164470U (en) 2017-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621006864.5U Active CN206164470U (en) 2016-08-30 2016-08-30 MPPT type intelligence terminal box based on PSOC

Country Status (1)

Country Link
CN (1) CN206164470U (en)

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