CN202424198U - Sunlight automatic sensing system for grid-connected inverter - Google Patents
Sunlight automatic sensing system for grid-connected inverter Download PDFInfo
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- CN202424198U CN202424198U CN2011205557899U CN201120555789U CN202424198U CN 202424198 U CN202424198 U CN 202424198U CN 2011205557899 U CN2011205557899 U CN 2011205557899U CN 201120555789 U CN201120555789 U CN 201120555789U CN 202424198 U CN202424198 U CN 202424198U
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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
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Abstract
The utility model discloses a sunlight automatic sensing system for a grid-connected inverter. The sunlight automatic sensing system comprises a parameter acquisition unit, a parameter operation unit, a parameter comparison unit, a first feedback unit and a second feedback unit, wherein the parameter acquisition unit acquires voltage parameters and current parameters output by the grid-connected inverter; the parameter operation unit is connected with the parameter acquisition unit and used for operating the voltage parameters and the current parameters to acquire solar illuminance and power parameters; the parameter comparison unit is connected with the parameter operation unit and used for judging whether the solar illuminance and the power parameters are in a preset value range or not; the first feedback unit is connected with the parameter comparison unit and used for carrying out feedback of the solar illuminance not in a normal operation range; and the second feedback unit is connected with the parameter comparison unit and is used for carrying out feedback of the solar illuminance in a normal operation range. The sunlight automatic sensing system can deduce the solar illuminance, and provides people with a reliable service reference of the operation state of the grid-connected inverter.
Description
Technical field
The utility model relates to inverter, more particularly, relates to a kind of autosense system of sunlight that is used for combining inverter.
Background technology
Progress along with expanding economy, society; People propose increasingly high requirement to the energy; Seek new forms of energy and become the urgent problem that current mankind faces; And it is very huge to be radiated at tellurian solar energy, is radiated at tellurian solar energy, the consumption that just is enough to supply 1 year energy of global human in about 40 minutes.We can say that solar energy is really inexhaustible, the nexhaustible energy, and solar power generation is definitely clean, does not produce public hazards, is perfect energy sources so solar power generation is described as.
Obtain electric power from solar energy, need to carry out light-to-current inversion and realize through solar cell.It has following characteristics with other power supply electricity generating principles were different fully in the past: 1. do not have exhausted dangerous; 2. absolute clean (nuisanceless); 3. do not receive the restriction of resource distribution region; 4. can generate electricity nearby in electricity consumption place; 5. can source quality high; 6. the user is acceptant on the emotion; The time of 7. obtaining energy cost is short.Weak point is: 1. the Energy distribution density of irradiation is little, promptly will take huge area; 2. the same four seasons of the energy that obtain, reach and rain or shine wait meteorological condition relevant round the clock.But generally speaking, one flaw cannot mar the jade, and as new forms of energy, solar energy has very big advantage, therefore receives the attention of countries in the world.
When utilizing solar power generation, a plurality of optical-electric modules are electrically connected, optical-electric module electricity power are delivered to electrical network through one or more inverters.
The solar illuminance of inverter is the major issue that often will consider in the inverter utilization, the strong low influence of the different periods of intensity of illumination, and output current is low when high always the time; But; Existing inverter owing to solar illuminance can not effectively be known by inference, thereby influences the use of people for inverter.
The utility model content
The technical problem that the utility model will solve is, a kind of a kind of autosense system of sunlight that is used for combining inverter that can effectively know solar illuminance by inference is provided.
The utility model discloses the autosense system of the sunlight that is used for combining inverter, comprising:
Parameter acquisition unit: voltage parameter and the current parameters of gathering combining inverter output;
Parameter arithmetic element: link to each other with described parameter acquisition unit, be used for the in addition computing of described voltage parameter and described current parameters, thereby obtain solar energy illumination and electrical energy parameter;
Parameter comparing unit: link to each other with described parameter arithmetic element, be used to judge that described solar energy illumination and electrical energy parameter are whether in the scope of preset value;
First feedback unit: link to each other with described parameter comparing unit, be used for the solar energy illumination in normal range of operation is not fed back;
Second feedback unit: link to each other with described parameter comparing unit, be used for the solar energy illumination in normal range of operation is fed back.
In the described combining inverter with the automatic perceptional function of sunlight of the utility model; Described combining inverter also comprises display unit; Link to each other with described parameter acquisition unit, be used for described solar energy illumination and electrical energy parameter are shown on display unit.
In the described combining inverter with the automatic perceptional function of sunlight of the utility model, described display unit specifically: LCD screen and LED screen.
In the described combining inverter with the automatic perceptional function of sunlight of the utility model, described parameter comparing unit comprises the preset value unit, the data when being used to the inverter normal condition is set.
Implement the autosense system of the sunlight that is used for combining inverter of the utility model, have following beneficial technical effects:
Can know the intensity of illumination of sunlight by inference, for people provide reliable use reference for the operating state of combining inverter.
Description of drawings
Fig. 1 is a kind of autosense system works flow process of sunlight figure that is used for combining inverter of the utility model embodiment;
Fig. 2 is a kind of autosense systemic-function block diagram of sunlight that is used for combining inverter of the utility model embodiment.
Embodiment
By the technology contents, the structural feature that specify the utility model, realized purpose and effect, know clearly below in conjunction with execution mode and conjunction with figs. and give explanation.
By common practise, we can know: photovoltaic generation (Solar photovoltaics (PV)) is according to the photovoltaic effect principle, utilizes solar cell that solar energy is converted into electric energy.Independent use or generate electricity by way of merging two or more grid systems no matter be; Photovoltaic generating system mainly is made up of solar panel (assembly), controller and inverter three parts; They mainly are made up of electronic devices and components, do not relate to mechanical part, so; The very refining of photovoltaic generation equipment, the reliable and stable life-span is long, installation and maintenance are easy.Theoretically, photovoltaic power generation technology can be used for any occasion that needs power supply, goes up to spacecraft, down to domestic power supply, arrives the MW class power station greatly, and little of toy, photo-voltaic power supply can be ubiquitous.
See also Fig. 1, a kind of autosense system works flow process of sunlight that is used for combining inverter comprises:
S1. gather the voltage parameter and the current parameters of combining inverter output;
Voltage parameter and current parameters be through the demonstration of voltage curve and current curve, and inverter is exactly a kind ofly to change low pressure (12 or 24 volts or 48 volts) direct current the electronic equipment of 220 volts of alternating currents into.Use because we normally become 220 volts of AC rectifications into direct current, and the effect of inverter in contrast, therefore gain the name.In real life, people not only need more need our 220 volts of indispensable in surroundings alternating currents simultaneously by the low-voltage DC of battery or storage battery supply, and inverter just can satisfy our this demand.
S2. with the in addition computing of described voltage parameter and described current parameters, thereby obtain solar energy illumination and electrical energy parameter;
S21. described solar energy illumination and electrical energy parameter are shown on display unit, display unit specifically: LCD screen and LED screen.
Inverter circuit is opposite with rectification circuit, and inverter circuit is that dc voltage conversion is the alternating voltage of the frequency of wanting, the device for power switching conducting and the shutoff of chien shih Shang Qiao, time bridge when determined.Thereby can on output U, V, W three-phase, obtain the three-phase alternating voltage of 120 ° of electrical degrees of phase place mutual deviation.
S3. judge that described solar energy illumination and electrical energy parameter are whether in the scope of preset value, if then get into step S4; If not; Get into step S31, feedback combining inverter cisco unity malfunction information, the data when described preset value is the inverter normal condition.
The inverter operate as normal mainly contains following index: rated output voltage, scope range of the fluctuation of voltage: single-phase 220V ± 5%, three-phase 380 ± 5%;
Output-current rating, under the output frequency and the power-factor of load of regulation, the load current value that inverter should be exported;
Specified output frequency, under defined terms, the specified output frequency of fixed frequency inverter is 50Hz;
Frequency fluctuation scope: 50Hz ± 2%;
The maximum harmonic content of inverter, sinewave inverter, under resistive load, the maximum harmonic content of output voltage answers≤10%.
S4. feed back the information of combining inverter operate as normal.
Above method also can be described as: the solar energy illumination that it obtains can show on LCD; Can calculate the electric energy of solar energy generation sometime according to this illuminance; Thereby be used to analyze whether operate as normal of inverter, the collection of two secondary data before and after relatively the deriving from of its data; And the data of often original data acquisition meeting when selecting the inverter optimum state for use, optimum state is generally solar panels and inverter newly installs the data that gather the back.
See also Fig. 2, a kind of autosense system works of sunlight that is used for combining inverter is used for above-mentioned method, comprising: parameter acquisition unit 10, parameter arithmetic element 20, parameter comparing unit 30, first feedback unit 40, second feedback unit 50.Parameter acquisition unit 10: voltage parameter and the current parameters of gathering combining inverter output; Parameter arithmetic element 20: link to each other with parameter acquisition unit 10, be used for the in addition computing of described voltage parameter and described current parameters, thereby obtain solar energy illumination and electrical energy parameter; Parameter comparing unit 30: link to each other with parameter arithmetic element 20, be used to judge that described solar energy illumination and electrical energy parameter are whether in the scope of preset value; First feedback unit 40: link to each other with parameter comparing unit 30, be used for the solar energy illumination in normal range of operation is not fed back; Second feedback unit 50: link to each other with parameter comparing unit 30, be used for the solar energy illumination in normal range of operation is fed back.
Wherein, The described autosense system of sunlight that is used for combining inverter also comprises parameter display unit 60, with described parameter arithmetic element 20, links to each other; Be used for described solar energy illumination and electrical energy parameter are shown on display unit; Described display unit is specifically: LCD screen and LED screen, described parameter comparing unit comprises the preset value unit, the data when being used to the inverter normal condition is set.
The normal condition numerical method is: the data when the inverter optimum state is selected in often original data acquisition meeting for use, optimum state are generally solar panels and inverter newly installs the data that gather the back.
Implement a kind of autosense system of sunlight that is used for combining inverter of the utility model, have following beneficial technical effects:
Can know the intensity of illumination of sunlight by inference, for people provide reliable use reference for the operating state of combining inverter.
Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong to the row of the protection of the utility model.
Claims (4)
1. the autosense system of sunlight that is used for combining inverter is characterized in that, comprising:
Parameter acquisition unit: voltage parameter and the current parameters of gathering combining inverter output;
Parameter arithmetic element: link to each other with described parameter acquisition unit, be used for the in addition computing of described voltage parameter and described current parameters, thereby obtain solar energy illumination and electrical energy parameter;
Parameter comparing unit: link to each other with described parameter arithmetic element, be used to judge that described solar energy illumination and electrical energy parameter are whether in the scope of preset value;
First feedback unit: link to each other with described parameter comparing unit, be used for the solar energy illumination in normal range of operation is not fed back;
Second feedback unit: link to each other with described parameter comparing unit, be used for the solar energy illumination in normal range of operation is fed back.
2. the autosense system of sunlight that is used for combining inverter according to claim 1; It is characterized in that; Described combining inverter also comprises display unit; Link to each other with described parameter acquisition unit, be used for described solar energy illumination and electrical energy parameter are shown on display unit.
3. the autosense system of sunlight that is used for combining inverter according to claim 2 is characterized in that, described display unit specifically: LCD screen and LED screen.
4. the autosense system of sunlight that is used for combining inverter according to claim 1 is characterized in that described parameter comparing unit comprises the preset value unit, the data when being used to the inverter normal condition is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205557899U CN202424198U (en) | 2011-12-27 | 2011-12-27 | Sunlight automatic sensing system for grid-connected inverter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205557899U CN202424198U (en) | 2011-12-27 | 2011-12-27 | Sunlight automatic sensing system for grid-connected inverter |
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| CN202424198U true CN202424198U (en) | 2012-09-05 |
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| CN2011205557899U Expired - Fee Related CN202424198U (en) | 2011-12-27 | 2011-12-27 | Sunlight automatic sensing system for grid-connected inverter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437591A (en) * | 2011-12-27 | 2012-05-02 | 东莞市凯登能源科技有限公司 | Method and system for automatically sensing sunlight of grid-connected inverter |
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2011
- 2011-12-27 CN CN2011205557899U patent/CN202424198U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437591A (en) * | 2011-12-27 | 2012-05-02 | 东莞市凯登能源科技有限公司 | Method and system for automatically sensing sunlight of grid-connected inverter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Changan Town, Guangdong city of Dongguan province Anmai 518000 new road 13, Lane 1, Fuyuan business center 4 floor Patentee after: Dongguan Kaideng Energy Technology Co., Ltd. Address before: Changan Town, Guangdong city of Dongguan province Anmai 518000 new road 13, Lane 1, Fuyuan business center 10 floor No. 1001 Patentee before: Dongguan Kaideng Energy Technology Co., Ltd. |
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| DD01 | Delivery of document by public notice | ||
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Addressee: DONGGUAN KAIDENG ENERGY TECHNOLOGY Co.,Ltd. Document name: Notification to Pay the Fees |
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| 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: 20120905 Termination date: 20191227 |