CN103825357A - Solar energy and electrified wire netting uninterruptible power supply system - Google Patents
Solar energy and electrified wire netting uninterruptible power supply system Download PDFInfo
- Publication number
- CN103825357A CN103825357A CN201410105921.4A CN201410105921A CN103825357A CN 103825357 A CN103825357 A CN 103825357A CN 201410105921 A CN201410105921 A CN 201410105921A CN 103825357 A CN103825357 A CN 103825357A
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- China
- Prior art keywords
- solar energy
- electrical network
- power supply
- wire netting
- uninterruptible power
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
Abstract
The invention relates to the technology of solar energy and electrified wire netting uninterruptible power supply and in particular relates to a system for supplying power for a user by solar energy power generation and the electrified wire netting simultaneously. The solar energy and electrified wire netting uninterruptible power supply system is mainly composed of a solar energy battery plate (1), a combiner box (2), an accumulator (3), a control unit (4) and a contravariant unit (5). By utilizing the solar energy and electrified wire netting uninterruptible power supply system, the contravariant unit controlling solar energy power generation outputs current to a user circuit according to the detected current required by the user, so that the solar energy power generation and the electrified wire netting supply power for the user simultaneously, the solar energy power supply is principal and electrified wire netting power supply is assistant. If connection of the system and the electrified wire netting is cut off, the system can be used as an independent power station to supply power for the user. Uninterruptible power supply function of solar energy and electrified wire netting can be also realized through supplementation of the electrified wire netting. The solar energy and electrified wire netting uninterruptible power supply system is especially suitable for electric energy shortage areas, is the best solution for effective utilization of a green energy resource and is novel application of a reproducible new energy resource. By utilizing the solar energy and electrified wire netting uninterruptible power supply system, the field of photovoltaic power generation is extended, and a novel application scheme of photovoltaic power generation is provided.
Description
Technical field
The present invention relates to photovoltaic application technology, be specially a kind of solar energy and electrical network uninterruptible power system, for solar grid-connected electric power system, contain the correlation technique of the aspects such as photovoltaic technology, power frequency inversion, automation control, be particularly useful for the area that electric energy is in short supply, be also the best solution that green energy resource effectively utilizes simultaneously.
Background technology
Present stage photovoltaic generation application mostly is solar energy from net power station, solar grid-connected power station, solar street light etc.Solar energy and commercial power complementary system also have a lot of products at present in addition, are custom-designed AC/DC universal equipment for electric loading.Existing grid-connected system is to mains supply in certain region, and power plant scale is larger, and capacity can not exceed power consumption in this scope, and system cannot be carried out volume production as approved product.
Summary of the invention
The object of the invention is to provide a kind of solar energy and electrical network uninterruptible power system, has proposed a kind of application scheme of novel solar power generation.Solar energy and electrical network are combined, realize solar power generation and electrical network is powered, handoff procedure uninterrupted power supply simultaneously.Control system is according to user's power consumption, control solar power generation output electric energy number, the electric energy that solar energy sends is only consumed by user, can not impact to electrical network feed, to electrical network, also can realize the function of independent power station.
Technical scheme of the present invention is:
A kind of solar energy and electrical network uninterruptible power system, this solar energy and electrical network uninterruptible power system by solar panel 1., header box 2., storage battery 3., control unit 4., 5. inversion unit form.
Described solar energy and electrical network uninterruptible power system, solar energy converts direct current to by cell panel, the direct current unification of each cell panel is exported to 4. control unit with header box.
Described solar energy and electrical network uninterruptible power system, 4. control unit can be charge in batteries and inversion unit is powered.
Described solar energy and electrical network uninterruptible power system, control unit is detection of grid voltage V1 4., and electrical network input current I1, inversion unit output current I2, the required electric current I 3 of user load are detected.
Described solar energy and electrical network uninterruptible power system, control unit 4. detection of grid voltage V1 is used for doing electrical network phase-detection.
Described solar energy and electrical network uninterruptible power system, control unit, 4. according to the required electric current I 3 of user load detecting, is controlled the electric current I 2 that 5. inversion unit is exported, and is kept I2<I3, and in the time that I3 approaches zero, 5. inversion unit stops output.
Described solar energy and electrical network uninterruptible power system, 4. control unit calculates the I1 detecting, I2, I3, monitors it and meets: I1+I2=I3, in the time not meeting this condition, adjusts inversion unit output current I2 5. immediately.
Described solar energy and electrical network uninterruptible power system, inversion unit is phase place and the frequency and I3(or I1 of output current I2 5.) identical, and 4. the size and Orientation of electric current I 2 can be determined by control unit.
Described solar energy and electrical network uninterruptible power system, 4. power supply 5. adopts dual power supply to inversion unit with control unit, when after electrical breakdown, can 3. be powered by storage battery.
Described solar energy and electrical network uninterruptible power system, when after system and electrical network disengaging, system can be used as from net power station to customer power supply.
The invention has the beneficial effects as follows:
1. the present invention makes solar power generation and electrical network simultaneously for customer power supply, but solar powered be main, mains supply is auxiliary.If cut-out native system is connected with electrical network, also can be used as independent power station, to customer power supply.Be particularly useful for the area that electric energy is in short supply, be also the best solution that green energy resource effectively utilizes simultaneously, is a kind of new application of renewable new forms of energy, opened up extensively the field of photovoltaic generation, proposed a kind of application scheme of Novel photovoltaic generating.
2. the present invention, in the time that solar power generation is not enough, by supplementing of electrical network, can realize the uninterrupted power supply function of solar energy and electrical network.
3. control system of the present invention is according to user's power consumption, control solar power generation output electric energy number, the electric energy that solar energy sends is all consumed by user, can, to electrical network feed, electrical network not impacted.
4. the present invention is simple in structure, and intelligent degree is high, and system seals in electrical network and subscriber's line, does not need manual operation, according to the electricity consumption situation that user detected, by solar power generation to customer power supply.
Accompanying drawing explanation
Fig. 1 is system architecture diagram of the present invention, 1. solar panel in figure; 2. header box; 3. storage battery; 4. control unit; 5. inversion unit; The voltage sensor of V1 detection of grid voltage; I1 detection of grid is carried the current sensor of size of current to user; I2 detects the current sensor of inversion unit output current size; I3 detects the current sensor of the size of current of finally carrying to user.Near the direction of arrow in figure I1, I2, I3 is defined as the positive direction of electric current.
Embodiment
As shown in Figure 1, the present invention directly seals between electrical network and subscriber's line, does not need manual operation, and according to the electricity consumption situation that user detected, the electricity that solar energy is sent feeds to user.For domestic consumer, header box 2., storage battery 3., control unit 4., 5. inversion unit can be structure as a whole, 1. solar panel is placed on outdoor.
For the system of larger capacity, need to arrange solar panel 1., header box layout place 2., and deposit storage battery 3., control unit 4., inversion unit special room 5., and need to consider the position of electrical network inlet wire position and user's distribution system.
As shown in Figure 1, circuit structure of the present invention, operation principle and the course of work are as follows:
(1) circuit structure
2. solar panel direct current output 1. connect header box, and 1. header box input side 2. connects cell panel, and outlet side connection control unit 4..
4. control unit has five part external interfaces, and a part is to connect header box direct current 2.; A part is to connect storage battery direct current 3.; A part is the AC power that connects electrical network; A part is the DC output end for inverter power supply; A part is detection port, comprise detection of grid voltage V1, detection of grid to user carry electric current I 1, detect inversion unit 5. output current I2, detect the electric current I 3 of finally carrying to user.
Inversion unit input 5. comprises control unit direct current and control signal 4., and output connects subscriber's line.
The first connection control unit of electrical network is 4. for it provides power supply, and has the real-time detection of grid voltage and current of a voltage sensor V1, current sensor I1, enters user afterwards with inversion unit output-parallel 4., then through a current sensor I3.
(2) operation principle
1. solar panel utilizes photovoltaic effect, is direct current by the power conversion of sunlight, at the 2. electric current that obtains system needs in parallel of header box.3. 4. direct current can charge to storage battery by control unit, also can 5. power to inversion unit.
5. 3. storage battery in the time that solar power generation is not enough, 4. flow to inversion unit by the direct current of having stored by control unit.
Control unit 4. by be stored in from the direct current of header box storage battery 3. in, also can flow to inversion unit 5..Control unit operation power supply is 4. by DC-DC circuit, 3. powers with storage battery; Also can use AC-DC circuit, power with electric network source.
5. 4. control unit control inversion unit according to the line voltage V1 detecting, the alternating current phases that 5. inversion unit is exported is identical with electrical network with frequency.
Control unit, 4. according to the required electric current I 3 of user load detecting, is controlled the electric current I 2 that 5. inversion unit is exported, and is kept I2<I3, and in the time that I3 approaches zero, 5. inversion unit stops output.
4. control unit calculates the I1 detecting, I2, I3, monitors it and meets: I1+I2=I3, in the time not meeting this condition, adjusts inversion unit output current I2 5. immediately.
(3) course of work
When electrical network connecting system, system is by mains supply.4. 2. 1. solar panel be transported to control unit by electric energy by header box, control unit 4. by power storage storage battery 2. in, in the time that user has electricity consumption requirement, by inversion unit 5. to customer power supply.
4. control unit detects the required electric current I 3 of user load, in the time finding I3 non-vanishing (being that user has electricity consumption requirement), control inversion unit 5. according to the phase place of the line voltage detecting, to user's output current I2, the size that simultaneously guarantees I2 is no more than I3, system detects I1, I2, I3 in real time, guarantees I1+I2=I3.If I3 is zero, stop inversion unit output 5., I2 is equalled zero.
In the time that 2. sunlight deficiency, storage battery cannot discharge, 4. control unit stops inversion unit output 5., and customer power supply is provided by electrical network completely.
When electrical network does not have connecting system, system by storage battery 2. or solar power system power.4. 2. 1. solar panel be transported to control unit by electric energy by header box, control unit 4. by power storage storage battery 2. in, in the time that user has electricity consumption requirement, by inversion unit 5. to customer power supply.
4. control unit controls inversion unit 5. all the time to customer power supply, meets user's need for electricity.In the time of solar power generation quantity not sufficient, by 2. outwards power supply of storage battery, until 2. storage battery cannot discharge, system is stopped power supply.
Claims (9)
1. solar energy and an electrical network uninterruptible power system, is characterized in that: this system by solar panel 1., header box 2., storage battery 3., control unit 4., 5. inversion unit form.
2. according to solar energy claimed in claim 1 and electrical network uninterruptible power system, it is characterized in that: 4. control unit can and power to inversion unit for charge in batteries.
3. according to solar energy claimed in claim 1 and electrical network uninterruptible power system, it is characterized in that: control unit is detection of grid voltage V1 4., and electrical network input current I1, inversion unit output current I2, the required electric current I 3 of user load are detected.
4. according to solar energy claimed in claim 1 and electrical network uninterruptible power system, it is characterized in that: control unit 4. detection of grid voltage V1 is used for doing electrical network phase-detection.
5. according to solar energy claimed in claim 1 and electrical network uninterruptible power system, it is characterized in that: control unit is 4. according to the required electric current I 3 of user load detecting, control the electric current I 2 that 5. inversion unit is exported, and keep I2<I3, in the time that I3 approaches zero, 5. inversion unit stops output.
6. according to solar energy claimed in claim 1 and electrical network uninterruptible power system, it is characterized in that: 4. control unit calculates the I1 detecting, I2, I3, monitoring it meets: I1+I2=I3, in the time not meeting this condition, adjusts inversion unit output current I2 5. immediately.
7. according to solar energy claimed in claim 1 and electrical network uninterruptible power system, it is characterized in that: inversion unit is phase place and the frequency and I3(or I1 of output current I2 5.) identical, and 4. the size and Orientation of electric current I 2 can be determined by control unit.
8. according to solar energy claimed in claim 1 and electrical network uninterruptible power system, it is characterized in that: 4. power supply 5. adopts dual power supply to inversion unit with control unit, when after electrical breakdown, can 3. be powered by storage battery.
9. according to solar energy claimed in claim 1 and electrical network uninterruptible power system, it is characterized in that: after system and electrical network depart from, system can be as from net power station to customer power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410105921.4A CN103825357A (en) | 2014-03-20 | 2014-03-20 | Solar energy and electrified wire netting uninterruptible power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410105921.4A CN103825357A (en) | 2014-03-20 | 2014-03-20 | Solar energy and electrified wire netting uninterruptible power supply system |
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| CN103825357A true CN103825357A (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410105921.4A Pending CN103825357A (en) | 2014-03-20 | 2014-03-20 | Solar energy and electrified wire netting uninterruptible power supply system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451754A (en) * | 2016-12-07 | 2017-02-22 | 国网浙江杭州市富阳区供电公司 | Looped network cabinet distribution type power utilization system |
| CN106505625A (en) * | 2016-12-07 | 2017-03-15 | 国网浙江杭州市富阳区供电公司 | A kind of looped network case distributed energy storage system |
| CN111682631A (en) * | 2020-05-29 | 2020-09-18 | 华润电力投资有限公司北方分公司 | Blower uninterrupted power supply system, control method and readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070129110A1 (en) * | 2005-11-04 | 2007-06-07 | Wisconsin Alumni Research Foundation | Interface switch for distributed energy resources |
| CN102780221A (en) * | 2012-07-20 | 2012-11-14 | 上海交通大学 | System and method for controlling online type photovoltaic power generation microgrid without storage device |
| CN103580269A (en) * | 2012-07-31 | 2014-02-12 | 周锡卫 | Photovoltaic electricity grid-connected and grid-disconnected duplicate supply system |
-
2014
- 2014-03-20 CN CN201410105921.4A patent/CN103825357A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070129110A1 (en) * | 2005-11-04 | 2007-06-07 | Wisconsin Alumni Research Foundation | Interface switch for distributed energy resources |
| CN102780221A (en) * | 2012-07-20 | 2012-11-14 | 上海交通大学 | System and method for controlling online type photovoltaic power generation microgrid without storage device |
| CN103580269A (en) * | 2012-07-31 | 2014-02-12 | 周锡卫 | Photovoltaic electricity grid-connected and grid-disconnected duplicate supply system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451754A (en) * | 2016-12-07 | 2017-02-22 | 国网浙江杭州市富阳区供电公司 | Looped network cabinet distribution type power utilization system |
| CN106505625A (en) * | 2016-12-07 | 2017-03-15 | 国网浙江杭州市富阳区供电公司 | A kind of looped network case distributed energy storage system |
| CN111682631A (en) * | 2020-05-29 | 2020-09-18 | 华润电力投资有限公司北方分公司 | Blower uninterrupted power supply system, control method and readable storage medium |
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Application publication date: 20140528 |
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