CN104135072B - A kind of control method of distributed solar energy cutting-in control case - Google Patents
A kind of control method of distributed solar energy cutting-in control case Download PDFInfo
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- CN104135072B CN104135072B CN201410339588.3A CN201410339588A CN104135072B CN 104135072 B CN104135072 B CN 104135072B CN 201410339588 A CN201410339588 A CN 201410339588A CN 104135072 B CN104135072 B CN 104135072B
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- computer processor
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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Abstract
The present invention relates to the control method of a kind of distributed solar energy cutting-in control case, electrical network powers on first, that detects each parts obtains electric situation, and when powering on, detection generating voltage and line voltage, voltage ripple of power network or under-voltage time, select to be controlled device for under-voltage releasing equipment by computer processor and realize the sub-switching operation of chopper via under-voltage coil and/or motor-operating mechanism, it is prevented effectively from generating user's damage, it is ensured that security of system uses.
Description
Technical field
The present invention relates to solar energy field of new energy utilization, a kind of distributed solar energy cutting-in control box control method.
Background technology
Solar energy power generating is dependent on solar module, utilizes the electronics property of semi-conducting material, luminous energy is changed into electric energy.Grid-connected system becomes receive the solar radiation energy come into high voltage direct current by photovoltaic array after high-frequency direct-current is changed, and exports with line voltage with frequency, the simple sinusoidal alternating current of homophase to electrical network after inverter inversion.Grid-connected photovoltaic system is exactly that solar photovoltaic generation system is connected with normal grid, and shared is powered task.The DC inverter that photovoltaic system is sent out by inverter becomes sinusoidal ac, and the alternating current of generation can directly feed AC load, then remaining electric energy inputs electrical network, or is directly connected to the grid by the whole electric energy produced.Owing to the generating of difference network users is originated different, the uneven power supply of the quality of power supply is accessed if a large amount of in electrical network, it is likely to result in voltage ripple of power network, voltage deviation etc., thus produce line voltage to fluctuate by a relatively large margin on load voltage value, easily cause the feedback to consumer networks, cause the damage of user's generating equipment.
Summary of the invention
For above-mentioned deficiency of the prior art, the invention provides one and can monitor generating voltage and line voltage in real time, the break-make that electrical network is powered on by the user that controls to generate electricity by way of merging two or more grid systems, it is ensured that the distributed solar energy cutting-in control box control method of electricity generation system safe handling.
The technical solution used in the present invention is: a kind of distributed solar energy cutting-in control case, control chamber is connected between solar inverter and electrical network, it is characterized in that: described control chamber includes chopper, motor-operating mechanism, device for under-voltage releasing equipment, AC/DC Switching Power Supply, kilowatt-hour meter, computer processor and display screen, solar inverter connects chopper, chopper connects motor-operating mechanism respectively, device for under-voltage releasing equipment, AC/DC Switching Power Supply, kilowatt-hour meter and computer processor, kilowatt-hour meter is connected to electrical network, device for under-voltage releasing equipment connects under-voltage coil in chopper, kilowatt-hour meter, display screen, motor-operating mechanism and AC/DC Switching Power Supply connect computer processor.
Further, described display screen is long-range and/or short range touch operation display screen, and display screen connects motor-operating mechanism.
Further, described motor-operating mechanism is the adaptive switched motor-operating mechanism of hands.
A kind of control method of distributed solar energy cutting-in control case, control method is:
Electrical network powers on first, breaker closing, computer processor by AC/DC Switching Power Supply obtain electric after, first display screen, kilowatt-hour meter and the communication state between it are detected, after both equipment and computer processor communication are normal, computer processor passes through while watt-hour meter voltage value is read in communication and reads the state of chopper, computer processor judges that whether line voltage value is at electrical network load voltage value, when line voltage value is within the 80%-120% of electrical network load voltage value, chopper will keep original state；When line voltage value is in less than the 80% or more than 120% of electrical network load voltage value, control chopper is tripped by computer processor；
During the most grid-connected, when computer processor judges that line voltage value is within 80%-85% or 115%-120% of electrical network load voltage value, chopper will keep original state, when computer processor judges that line voltage value is within the 85%-115% of electrical network load voltage value, computer processor reads the state of motor-operating mechanism, if being in gate-dividing state at auto state and chopper, time delay 1s control electric operating mechanism of circuit-breaker is closed a floodgate and shows by computer processor；If motor-operating mechanism is in artificial state, computer processor reads display screen state, it is achieved nearly control and/or far control and chopper carries out long-range splitting or integrating lock and shows state.
Use technique scheme, the invention has the beneficial effects as follows: electrical network powers on first, that detects each parts obtains electric situation, and when powering on, detection generating voltage and line voltage, voltage ripple of power network or under-voltage time, select to be controlled device for under-voltage releasing equipment by computer processor and realize the sub-switching operation of chopper via under-voltage coil and/or motor-operating mechanism, it is prevented effectively from generating user's damage, it is ensured that security of system uses.
Accompanying drawing explanation
Fig. 1 is present configuration sketch.
In figure: solar inverter 1, electrical network 2, chopper 3, motor-operating mechanism 4, device for under-voltage releasing equipment 5, AC/DC Switching Power Supply 6, kilowatt-hour meter 7, computer processor 8, display screen 9.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Shown in Fig. 1, a kind of distributed solar energy cutting-in control case is connected between solar inverter 1 and electrical network 2, and control chamber includes chopper 3, motor-operating mechanism 4, device for under-voltage releasing equipment 5, AC/DC Switching Power Supply 6, kilowatt-hour meter 7, computer processor 8, display screen 9.Solar inverter 1 connects chopper 3, chopper 3 connects motor-operating mechanism 4, device for under-voltage releasing equipment 5, AC/DC Switching Power Supply 6, kilowatt-hour meter 7 and computer processor 8 respectively, kilowatt-hour meter 7 is connected to electrical network 2, device for under-voltage releasing equipment 5 is under-voltage coil in connecting chopper 3, kilowatt-hour meter 7, display screen 9, motor-operating mechanism 4 and AC/DC Switching Power Supply 6 connect computer processor 8, display screen is long-range and/or short range touch operation display screen, and display screen connects motor-operating mechanism.Motor-operating mechanism is the adaptive switched motor-operating mechanism of hands.
The control method of control chamber is:
Electrical network powers on first, breaker closing, computer processor by AC/DC Switching Power Supply obtain electric after, first display screen, kilowatt-hour meter and the communication state between it are detected, after both equipment and computer processor communication are normal, computer processor passes through while watt-hour meter voltage value is read in communication and reads the state of chopper, computer processor judges that whether line voltage value is at electrical network load voltage value, when line voltage value is within the 80%-120% of electrical network load voltage value, chopper will keep original state；When line voltage value is in less than the 80% or more than 120% of electrical network load voltage value, control chopper is tripped by computer processor；
During the most grid-connected, when computer processor judges that line voltage value is within 80%-85% or 115%-120% of electrical network load voltage value, chopper will keep original state, when computer processor judges that line voltage value is within the 85%-115% of electrical network load voltage value, computer processor reads the state of motor-operating mechanism, if being in gate-dividing state at auto state and chopper, time delay 1s control electric operating mechanism of circuit-breaker is closed a floodgate and shows by computer processor；If motor-operating mechanism is in artificial state, computer processor reads display screen state, it is achieved nearly control and/or far control and chopper carries out long-range splitting or integrating lock and shows state.
Claims (3)
1. the control method of a distributed solar energy cutting-in control case, it is characterized in that: control chamber is connected between solar inverter and electrical network, described control chamber includes chopper, motor-operating mechanism, device for under-voltage releasing equipment, AC/DC Switching Power Supply, kilowatt-hour meter, computer processor and display screen, solar inverter connects chopper, chopper connects motor-operating mechanism respectively, device for under-voltage releasing equipment, AC/DC Switching Power Supply, kilowatt-hour meter and computer processor, kilowatt-hour meter is connected to electrical network, device for under-voltage releasing equipment connects under-voltage coil in chopper, kilowatt-hour meter, display screen, motor-operating mechanism and AC/DC Switching Power Supply connect computer processor；Electrical network powers on first, after breaker closing, computer processor by AC/DC Switching Power Supply obtain electric after first detect the communication state between display screen, kilowatt-hour meter and computer processor, after both equipment and computer processor communication are normal, while computer processor reads the line voltage value of kilowatt-hour meter by communication and read the state of chopper, computer processor judges line voltage value, when line voltage value is within the 80%-120% of electrical network load voltage value, chopper will keep original state；When line voltage value is in less than the 80% or more than 120% of electrical network load voltage value, control chopper is tripped by computer processor；During grid-connected, when computer processor judges that line voltage value is within 80%-85% or 115%-120% of electrical network load voltage value, chopper will keep original state, when computer processor judges that line voltage value is within the 85%-115% of electrical network load voltage value, computer processor reads the state of motor-operating mechanism, if being in gate-dividing state at auto state and chopper, time delay 1s control electric operating mechanism of circuit-breaker is closed a floodgate and shows by computer processor；If motor-operating mechanism is in artificial state, computer processor reads display screen state, it is achieved nearly control and/or far control and chopper carries out long-range splitting or integrating lock and shows state.
The control method of a kind of distributed solar energy cutting-in control case the most according to claim 1, is characterized in that: described display screen is long-range and/or short range touch operation display screen, and display screen connects motor-operating mechanism.
The control method of a kind of distributed solar energy cutting-in control case the most according to claim 1 and 2, is characterized in that: described motor-operating mechanism is the adaptive switched motor-operating mechanism of hands.
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| CN201410339588.3A CN104135072B (en) | 2014-07-17 | 2014-07-17 | A kind of control method of distributed solar energy cutting-in control case |
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| CN201410339588.3A CN104135072B (en) | 2014-07-17 | 2014-07-17 | A kind of control method of distributed solar energy cutting-in control case |
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| CN104135072A CN104135072A (en) | 2014-11-05 |
| CN104135072B true CN104135072B (en) | 2016-08-17 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178542A (en) * | 2013-03-12 | 2013-06-26 | 南京南瑞太阳能科技有限公司 | Distributed power grid-connection interface system and control method thereof |
| CN103595348A (en) * | 2013-11-19 | 2014-02-19 | 安泰科技股份有限公司 | Household photovoltaic intelligent control system |
| CN203660549U (en) * | 2013-09-17 | 2014-06-18 | 北京北变微电网技术有限公司 | Distributed photovoltaic intelligent grid connection box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08126206A (en) * | 1994-10-28 | 1996-05-17 | Kyocera Corp | Power supply device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178542A (en) * | 2013-03-12 | 2013-06-26 | 南京南瑞太阳能科技有限公司 | Distributed power grid-connection interface system and control method thereof |
| CN203660549U (en) * | 2013-09-17 | 2014-06-18 | 北京北变微电网技术有限公司 | Distributed photovoltaic intelligent grid connection box |
| CN103595348A (en) * | 2013-11-19 | 2014-02-19 | 安泰科技股份有限公司 | Household photovoltaic intelligent control system |
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| CN104135072A (en) | 2014-11-05 |
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Effective date of registration: 20190918 Address after: 225400 No. 26 Xingyuan Road, Huangqiao Town, Taixing City, Jiangsu Province Patentee after: Jiangsu Huacheng automation equipment Co., Ltd. Address before: 225400 Taizhou Province, Taixing City, Huangqiao Town Industrial Park, No. East victory road, No. 8 Patentee before: Taixing Huacheng Electromechanical Manufacturing Co.,Ltd. |
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