CN112865278A - Photovoltaic system control method, photovoltaic system control system and computer-readable storage medium - Google Patents
Photovoltaic system control method, photovoltaic system control system and computer-readable storage medium Download PDFInfo
- Publication number
- CN112865278A CN112865278A CN202011641932.6A CN202011641932A CN112865278A CN 112865278 A CN112865278 A CN 112865278A CN 202011641932 A CN202011641932 A CN 202011641932A CN 112865278 A CN112865278 A CN 112865278A
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- CN
- China
- Prior art keywords
- power supply
- storage battery
- photovoltaic system
- power
- system control
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004590 computer program Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims 1
- 238000010248 power generation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
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- 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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A photovoltaic system control method, a control system and a computer readable storage medium relate to the technical field of photovoltaic system control. The photovoltaic system comprises a storage battery, switching conditions of a power supply used for supplying power to a load between the storage battery and a mains supply are monitored, and if the switching times of the power supply between the storage battery and the mains supply within a preset time reach a preset value, the storage battery is controlled to be forbidden to be used as the power supply until the storage battery is replaced. The power supply is responsible for supplying power to the load, and in order to ensure that the load can not lose power and cause unexpected shutdown, the power supply can select storage battery or commercial power among the photovoltaic system to supply power for the load. By detecting the times of switching between the storage battery and the commercial power of the power supply within the preset time, and controlling the storage battery to be forbidden as the power supply when the preset value is reached, frequent switching of the power supply can be effectively avoided, and user experience and service life of the photovoltaic system are improved.
Description
Technical Field
The invention relates to the technical field of photovoltaic system control.
Background
Photovoltaic power generation is a technology of directly converting light energy into electric energy by using the photovoltaic effect of a semiconductor interface. A key element of this technology is the solar cell. The solar cells are connected in series and then are packaged and protected to form a large-area solar cell module, and then the photovoltaic power generation device is formed by matching with components such as a power controller and the like.
It is a common architecture mode for photovoltaic systems to use photovoltaic power generation devices to charge storage batteries and then use the storage batteries to produce stable current and voltage. Generally, in a photovoltaic system, the battery voltage is detected to reach a certain higher value, the battery is considered to be sufficient, and the photovoltaic system is switched to supply power to a load; when the voltage of the storage battery is detected to be lower than a certain lower value, the electric quantity is considered to be insufficient, and the service life of the battery is damaged in order to avoid the condition that the electric quantity of the battery is completely exhausted, at the moment, the commercial power is switched to supply power for the load.
However, normal loss occurs in the use process of the battery, the service life is long, the actual capacity of the battery is reduced, the electric quantity of the battery is exhausted quickly and is also filled quickly, therefore, frequent switching of the commercial power or the photovoltaic system to supply power to the load is caused, fluctuation occurs in switching power supply, for example, light may flicker after switching, poor experience is brought to users due to frequent switching of the power supply, and the service life of the photovoltaic system is also reduced due to frequent switching of the power supply.
Disclosure of Invention
In view of this, the invention provides a photovoltaic system control method, a control system and a computer readable storage medium, which can improve the user experience of the photovoltaic system and the service life of the photovoltaic system.
In order to solve the technical problems, the invention provides the following technical scheme:
1. the photovoltaic system comprises a storage battery, switching conditions of a power supply used for supplying power to a load between the storage battery and a mains supply are monitored, and if the switching times of the power supply between the storage battery and the mains supply within a preset time reach a preset value, the storage battery is controlled to be forbidden to be used as the power supply until the storage battery is replaced.
The power supply is responsible for supplying power to the load, and in order to ensure that the load can not lose power and cause unexpected shutdown, the power supply can select storage battery or commercial power among the photovoltaic system to supply power for the load. According to the principle of green and environment protection, the power supply can preferentially select the storage battery in the photovoltaic system to supply power to the load, so that the power supply is frequently switched between the storage battery and the commercial power in order to avoid the reduction of the capacity of the storage battery, the power supply is forbidden as the power supply by detecting the switching times between the storage battery and the commercial power in the preset time, and the storage battery is forbidden as the power supply by controlling when the preset value is reached, so that the frequent switching of the power supply can be effectively avoided, and the user experience and the service life of the photovoltaic system are improved.
2. According to the photovoltaic system control method of claim 1, during the period when the storage battery is prohibited from being used as the power supply source, the commercial power is controlled to be used as the power supply source to supply power to the load.
Uninterrupted power supply to the load can be maintained, and normal operation of the load is maintained.
3. According to the control method of the photovoltaic system in the technical scheme 1, if the switching frequency of the power supply between the storage battery and the mains supply reaches a preset value within a preset time, the photovoltaic system is turned off.
Because the capacity of the storage battery in the photovoltaic system is reduced to a state that the storage battery cannot be normally used by the electric equipment, if the photovoltaic system is still kept in the open state, the storage battery is quickly fully charged, the storage battery overshoots, the storage battery is further damaged, and the battery can explode.
4. According to the control method of the photovoltaic system in the technical scheme 1, the preset time is 30 minutes, and the preset value is 3.
5. A computer-readable storage medium storing a computer program which, when executed, can implement the photovoltaic system control method according to any one of claims 1 to 4.
6. The photovoltaic system control system comprises a processor and a computer readable storage medium, wherein the computer readable storage medium is the computer readable storage medium described in claim 5, and the processor can execute a computer program stored in the computer readable storage medium.
Detailed Description
The invention is described in detail below with reference to specific embodiments.
The photovoltaic system comprises a storage battery, switching conditions of a power supply used for supplying power to a load between the storage battery and commercial power are monitored, if the switching times of the power supply between the storage battery and the commercial power within 30 minutes reach 3 times, the storage battery is forbidden to be used as the power supply, and the photovoltaic system is closed until the storage battery is replaced. And controlling the commercial power as a power supply to supply power to the load during the period when the storage battery is forbidden to be used as the power supply so as to keep uninterrupted power supply to the load and maintain the normal operation of the load.
The power supply is responsible for supplying power to the load, and in order to ensure that the load can not lose power and cause unexpected shutdown, the power supply can select storage battery or commercial power among the photovoltaic system to supply power for the load. According to the principle of green and environment protection, the power supply can preferentially select the storage battery in the photovoltaic system to supply power to the load, so that the power supply is frequently switched between the storage battery and the commercial power in order to avoid the reduction of the capacity of the storage battery, the power supply is forbidden as the power supply by detecting the switching times between the storage battery and the commercial power in the preset time, and the storage battery is forbidden as the power supply by controlling when the preset value is reached, so that the frequent switching of the power supply can be effectively avoided, and the user experience and the service life of the photovoltaic system are improved.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The photovoltaic system control method is characterized by monitoring the switching condition of a power supply which supplies power to a load between the storage battery and a commercial power, and if the switching times of the power supply between the storage battery and the commercial power within a preset time reach a preset value, controlling to forbid the storage battery as the power supply until the storage battery is replaced.
2. The photovoltaic system control method according to claim 1, wherein power supply from a commercial power as a power supply to a load is controlled during a period in which the storage battery is disabled as the power supply.
3. The photovoltaic system control method according to claim 1, wherein the photovoltaic system is turned off if the number of times of switching of the power supply between the storage battery and the commercial power within a preset time period reaches a preset value.
4. The photovoltaic system control method according to claim 1, wherein the preset time period is 30 minutes, and the preset value is 3.
5. Computer-readable storage medium, in which a computer program is stored, wherein the computer program, when executed, is adapted to implement the photovoltaic system control method according to any of claims 1-4.
6. A photovoltaic system control system comprising a processor and a computer readable storage medium, wherein the computer readable storage medium is the computer readable storage medium of claim 5, and wherein the processor is configured to execute a computer program stored in the computer readable storage medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641932.6A CN112865278A (en) | 2020-12-31 | 2020-12-31 | Photovoltaic system control method, photovoltaic system control system and computer-readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641932.6A CN112865278A (en) | 2020-12-31 | 2020-12-31 | Photovoltaic system control method, photovoltaic system control system and computer-readable storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112865278A true CN112865278A (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011641932.6A Pending CN112865278A (en) | 2020-12-31 | 2020-12-31 | Photovoltaic system control method, photovoltaic system control system and computer-readable storage medium |
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Citations (6)
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|---|---|---|---|---|
| KR20110085719A (en) * | 2010-01-21 | 2011-07-27 | 세방전지(주) | Apparatuses of grid connecting for standalone solar power streetlight system and operating methods thereof |
| WO2013138862A1 (en) * | 2012-03-23 | 2013-09-26 | Phan Minh T | Photovoltaic system and method |
| CN103872754A (en) * | 2012-12-14 | 2014-06-18 | 中国电信股份有限公司 | Photovoltaic solar power supplying control method and system |
| JP2015231316A (en) * | 2014-06-06 | 2015-12-21 | 日立マクセル株式会社 | Power storage system |
| CN107069790A (en) * | 2017-06-09 | 2017-08-18 | 中塔新兴通讯技术集团有限公司 | The system and method that a kind of synthesis energy saving is powered |
| CN211019378U (en) * | 2019-12-16 | 2020-07-14 | 四川光科太阳能照明有限公司 | Novel solar street lamp controller |
-
2020
- 2020-12-31 CN CN202011641932.6A patent/CN112865278A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110085719A (en) * | 2010-01-21 | 2011-07-27 | 세방전지(주) | Apparatuses of grid connecting for standalone solar power streetlight system and operating methods thereof |
| WO2013138862A1 (en) * | 2012-03-23 | 2013-09-26 | Phan Minh T | Photovoltaic system and method |
| CN103872754A (en) * | 2012-12-14 | 2014-06-18 | 中国电信股份有限公司 | Photovoltaic solar power supplying control method and system |
| JP2015231316A (en) * | 2014-06-06 | 2015-12-21 | 日立マクセル株式会社 | Power storage system |
| CN107069790A (en) * | 2017-06-09 | 2017-08-18 | 中塔新兴通讯技术集团有限公司 | The system and method that a kind of synthesis energy saving is powered |
| CN211019378U (en) * | 2019-12-16 | 2020-07-14 | 四川光科太阳能照明有限公司 | Novel solar street lamp controller |
Non-Patent Citations (1)
| Title |
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| 王建华等: "蓄电池智能监控防爆系统在铁路行业的应用", 电子技术与软件工程, no. 15, pages 220 - 222 * |
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