CN106208336A - Photovoltaic milling device - Google Patents
Photovoltaic milling device Download PDFInfo
- Publication number
- CN106208336A CN106208336A CN201610774747.1A CN201610774747A CN106208336A CN 106208336 A CN106208336 A CN 106208336A CN 201610774747 A CN201610774747 A CN 201610774747A CN 106208336 A CN106208336 A CN 106208336A
- Authority
- CN
- China
- Prior art keywords
- photovoltaic
- dynamical system
- milling device
- connects
- changing frequency
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The present invention provides a kind of photovoltaic milling device, including: dynamical system, dynamical system connects load by control system；The positive pole of described dynamical system is divided into two-way, the three-phase commutation bridge of a road connection control system, and another road connects management of charging and discharging unit；The negative pole of dynamical system is connected in DC/DC modular converter, the negative pole of inversion changing frequency controller after current sampling resistor samples；Sampling voltage is connected to the input of signals collecting panel and gathers signal end.The present invention devises the multiple protection functions of frequency conversion, motor smooth starting, without impact surge current, can make full use of the generated output of photovoltaic panel；The allowance of reduction system design, reduces system cost；The plurality of advantages such as the life-span of raising accumulator.
Description
Technical field
The present invention relates to a kind of technical field of solar, particularly relate to a kind of photovoltaic milling device.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of photovoltaic pulverizing dress
Put, be used for solving problems of the prior art.
For achieving the above object and other relevant purposes, the present invention provides a kind of photovoltaic milling device, including:
Dynamical system, dynamical system connects load by control system；The positive pole of described dynamical system is divided into two-way, and a road connects
The three-phase commutation bridge of control system, another road connects management of charging and discharging unit；The negative pole of dynamical system takes through current sampling resistor
DC/DC modular converter, the negative pole of inversion changing frequency controller it is connected in after sample；Sampling voltage is connected to the defeated of signals collecting panel
Enter to gather signal end.
Preferably, the three-phase commutation bridge of the positive pole connection control system of described dynamical system, the positive pole warp of three-phase commutation bridge
DC/DC modular converter and under-voltage control relay is connected respectively after crossing main switch；Under-voltage control relay connects inversion changing frequency device,
Inversion changing frequency device connects load.
Preferably, astable for HVDC voltage is converted into stable 24V DC voltage and is by described DC/DC modular converter
Signals collecting panel and man machine interface are powered.
Preferably, the positive pole of described dynamical system connects management of charging and discharging unit through battery.
Preferably, described electric discharge administrative unit, signals collecting panel, inversion changing frequency controller are by RS-485 communication always
Line exchange information, and information is shown by indicating meter, and realize man-machine interaction by liquid crystal display and button.
Preferably, described signals collecting panel is also connected with temperature collect module, temperature alarming module.
Preferably, described load is flour mill, and the concrete structure of its flour mill is:
Flour mill is that two motors drive, the inversion changing frequency controller of each motor connection control system.
Preferably, the motor of described flour mill uses three-phase squirrel cage asynchronous machine.
As it has been described above, the method have the advantages that
The present invention devises the multiple protection functions of frequency conversion, motor smooth starting, without impact surge current, can make full use of photovoltaic
The generated output of plate；The allowance of reduction system design, reduces system cost；The plurality of advantages such as the life-span of raising accumulator.
Energy storage uses lithium iron phosphate storage battery, uses buffering to delay and puts working method, and the life-span can reach more than 10 years.
Two motor independence inversions of native system drive, and stability, reliability, maintainability are the highest.
The on off control protection of two motors realizes the most in the controls, and automaticity is high.
Flour mill only drives with two motors, and the control debugging maintenance making system is simpler.
Two button controls of start and stop only used by flour mill, and operation is more prone to.
Using common three-phase squirrel cage asynchronous machine, its stability and reliability, maintainability are the best.
Accompanying drawing explanation
Fig. 1 is shown as the circuit diagram of the present invention.
Element numbers explanation
1 be dynamical system, 2 be three-phase commutation bridge, 3 be under-voltage control relay, 4 be management of charging and discharging unit, 5 for current sampling
Resistance, 6 for signals collecting panel, 7 for man machine interface, 8 for DC/DC modular converter, 9 be the first inversion changing frequency controller, 10
Be the second inversion changing frequency controller, 11 be the first load, 12 be the second load, 13 be temperature collect module, 14 for temperature alarming
Module, 15 be gauge outfit, 16 be main switch, 17 for battery.
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also be by the most different concrete realities
The mode of executing is carried out or applies, the every details in this specification can also based on different viewpoints and application, without departing from
Various modification or change is carried out under the spirit of the present invention.
Refer to Fig. 1.It should be noted that the diagram provided in the present embodiment illustrates the present invention's the most in a schematic way
Basic conception, the most graphic in component count time only display with relevant assembly in the present invention rather than is implemented according to reality, shape
And size drafting, during its actual enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout
Kenel is likely to increasingly complex.
Detailed description of the invention is as follows: dynamical system connects load by control system；Dynamical system is solar photovoltaic
Pond plate, solar photovoltaic cell panel 1 is made up of the solar photovoltaic cell panel of 60 pieces of 250W, and every 20 pieces are connected into one group, and totally 3
Group, this positive pole of 3 groups is divided into two-way:
1) main switch 16 is accessed via three phase rectifier electric bridge 2 rectification in a road, and the effect of three phase rectifier electric bridge 2 is anti-reverse protection,
Positive pole is divided into two-way after main switch 16, and DC/DC modular converter 8 is delivered on a road, and under-voltage control relay 3, warp are delivered in another road
Overvoltage/undervoltage controls relay 3 and is followed by the first inversion changing frequency controller 9 and the second inversion changing frequency controller 10, the first inversion changing frequency
Controller 9 and the second inversion changing frequency controller 10 are connected to the first load 11 first mouse cage three phase electric machine and the second load 12 the respectively
Two mouse cage three phase electric machines are as the driving motor of flour mill；Through DC/DC modular converter 8, astable for HVDC voltage is converted into
Stable 24V DC voltage is signals collecting panel 6 and man machine interface 7 is powered；The negative pole of three Battery pack plates is through current sampling
It is connected in DC/DC modular converter the 8, first inversion changing frequency controller 9 and the second inversion changing frequency controller 10 after resistance 5 sampling
Negative pole；Sampling voltage is connected to the input of signals collecting panel 6 and gathers signal end.
2) another road enters management of charging and discharging unit 4, and management of charging and discharging unit 4 completes lithium iron phosphate storage battery group 17
Management of charging and discharging, including control and the protection etc. of charging/discharging voltage electric current.
Man machine interface 7 is by RS-485 communication bus and management of charging and discharging unit 4, the 6, first inversion of signals collecting panel
Frequency-variable controller the 9, second inversion changing frequency controller 10 exchanges information, and information is shown by indicating meter 15, and leads to
Cross liquid crystal display and button realizes man-machine interaction.
Described signals collecting panel 6 is also connected with temperature collect module 13, temperature alarming module 14.
Described load is flour mill, and flour mill is that two motors drive, the inversion changing frequency of each motor connection control system
Controller.
Preferably, the motor of described flour mill uses three-phase squirrel cage asynchronous machine.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention.Any ripe
Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by the personage knowing this technology.Cause
This, have usually intellectual such as complete with institute under technological thought without departing from disclosed spirit in art
All equivalences become are modified or change, and must be contained by the claim of the present invention.
Claims (8)
1. a photovoltaic milling device, it is characterised in that including:
Dynamical system, dynamical system connects load by control system；The positive pole of described dynamical system is divided into two-way, and a road connects
The three-phase commutation bridge of control system, another road connects management of charging and discharging unit；The negative pole of dynamical system takes through current sampling resistor
DC/DC modular converter, the negative pole of inversion changing frequency controller it is connected in after sample；Sampling voltage is connected to the defeated of signals collecting panel
Enter to gather signal end.
Photovoltaic milling device the most according to claim 1, it is characterised in that the positive pole of described dynamical system connects
The three-phase commutation bridge of control system, the positive pole of three-phase commutation bridge connects DC/DC modular converter and under-voltage after main switch respectively
Control relay；Under-voltage control relay connects inversion changing frequency device, and inversion changing frequency device connects load.
Photovoltaic milling device the most according to claim 2, it is characterised in that described DC/DC modular converter is by height
The astable voltage of straightening stream is converted into stable 24V DC voltage and is signals collecting panel and man machine interface is powered.
Photovoltaic milling device the most according to claim 1, it is characterised in that the positive pole of described dynamical system passes through
Battery connects management of charging and discharging unit.
Photovoltaic milling device the most according to claim 1, it is characterised in that described electric discharge administrative unit, signal
Acquisition controlling plate, inversion changing frequency controller exchange information by RS-485 communication bus, and information are shown by indicating meter
Out, and by liquid crystal display and button man-machine interaction is realized.
Photovoltaic milling device the most according to claim 5, it is characterised in that described signals collecting panel also connects
Jointing temp acquisition module, temperature alarming module.
Photovoltaic milling device the most according to claim 1, it is characterised in that described load is flour mill, pulverizing
Machine is that two motors drive, the inversion changing frequency controller of each motor connection control system.
Photovoltaic milling device the most according to claim 7, it is characterised in that the motor of described flour mill uses three
Phase cage induction motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610774747.1A CN106208336A (en) | 2016-08-31 | 2016-08-31 | Photovoltaic milling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610774747.1A CN106208336A (en) | 2016-08-31 | 2016-08-31 | Photovoltaic milling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106208336A true CN106208336A (en) | 2016-12-07 |
Family
ID=58088469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610774747.1A Pending CN106208336A (en) | 2016-08-31 | 2016-08-31 | Photovoltaic milling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106208336A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607003A (en) * | 2013-11-11 | 2014-02-26 | 厦门科华恒盛股份有限公司 | Two-stage frequency conversion control method of photovoltaic charger |
| CN203674778U (en) * | 2014-01-13 | 2014-06-25 | 济南赛克立德电气科技有限公司 | Control device of solar and wind power generation system |
| CN104079232A (en) * | 2014-07-14 | 2014-10-01 | 哈尔滨工业大学 | Single-stage type photovoltaic water pump control system and method |
| CN204967031U (en) * | 2015-06-26 | 2016-01-13 | 周磊 | A block terminal wiring structure for material treatment equipment |
| CN205377312U (en) * | 2016-01-28 | 2016-07-06 | 吉林大学 | Little electric network composition of clean energy of family based on solar energy and wind energy |
| CN206180677U (en) * | 2016-08-31 | 2017-05-17 | 山东德建集团有限公司 | Solar photovoltaic milling equipment |
-
2016
- 2016-08-31 CN CN201610774747.1A patent/CN106208336A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607003A (en) * | 2013-11-11 | 2014-02-26 | 厦门科华恒盛股份有限公司 | Two-stage frequency conversion control method of photovoltaic charger |
| CN203674778U (en) * | 2014-01-13 | 2014-06-25 | 济南赛克立德电气科技有限公司 | Control device of solar and wind power generation system |
| CN104079232A (en) * | 2014-07-14 | 2014-10-01 | 哈尔滨工业大学 | Single-stage type photovoltaic water pump control system and method |
| CN204967031U (en) * | 2015-06-26 | 2016-01-13 | 周磊 | A block terminal wiring structure for material treatment equipment |
| CN205377312U (en) * | 2016-01-28 | 2016-07-06 | 吉林大学 | Little electric network composition of clean energy of family based on solar energy and wind energy |
| CN206180677U (en) * | 2016-08-31 | 2017-05-17 | 山东德建集团有限公司 | Solar photovoltaic milling equipment |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20161207 |