CN111221355A - Photovoltaic agricultural self-power supply system - Google Patents
Photovoltaic agricultural self-power supply system Download PDFInfo
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- 238000003860 storage Methods 0.000 claims abstract description 71
- 238000012544 monitoring process Methods 0.000 claims abstract description 44
- 230000033001 locomotion Effects 0.000 claims abstract description 38
- 230000002457 bidirectional effect Effects 0.000 claims description 34
- 238000007599 discharging Methods 0.000 claims description 11
- 230000006855 networking Effects 0.000 claims description 3
- 230000002354 daily effect Effects 0.000 abstract description 12
- 238000005286 illumination Methods 0.000 abstract description 9
- 230000003203 everyday effect Effects 0.000 abstract description 7
- 230000001276 controlling effect Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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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
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
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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
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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a photovoltaic agricultural self-power supply system, which comprises: the system comprises a storage battery pack, a photovoltaic module, a tracking support, a sunlight prediction module, a control module, an intelligent planting subsystem and a data monitoring subsystem. The photovoltaic module is arranged above the planting area through a tracking support and is respectively connected with the storage battery, the intelligent planting subsystem and the data monitoring subsystem for supplying power; the storage battery pack is also respectively connected with the intelligent planting subsystem and the data monitoring subsystem and used for supplying power. According to the photovoltaic agricultural self-power supply system provided by the invention, the movement mode of the photovoltaic component is adjusted every day according to the total daily irradiation value and the irradiation requirement of crop growth, so that sufficient illumination for crop growth every day is ensured, meanwhile, the sufficient utilization of abundant solar energy in a planting area is ensured by photovoltaic power supply while the illumination requirement for crop growth is met, and the self-power supply of intelligent planting in the planting area is realized.
Description
Technical Field
The invention relates to the technical field of photovoltaic agriculture, in particular to a photovoltaic agricultural self-power supply system.
Background
The ecological agriculture is established according to the ecological principle and the economic principle by applying modern scientific and technical achievements, modern management means and effective experience of traditional agriculture, and can obtain modern high-efficiency agriculture with higher economic benefit, ecological benefit and social benefit. The method is required to combine grain development with production of various economic crops, field planting development with forests, pastures, subsidiary industries and fisheries, and large agriculture development with second and third industries, and forms two virtuous cycles of ecology and economy by utilizing the traditional agriculture essence and modern technological achievements and by the contradiction between artificial design of ecological engineering, coordinated development and environment, and resource utilization and protection, and unifies three benefits of economy, ecology and society.
At present, one of the embodiments of ecological agriculture is photovoltaic agriculture. When the photovoltaic agriculture is used for agricultural planting, the photovoltaic module is erected, under the premise that illumination required by crop growth is guaranteed, the photovoltaic utilization of surplus solar energy in a planting area is achieved, crop planting and natural resources are unified, and therefore the social value and the economic value are higher.
However, in the current photovoltaic agricultural field, due to the prediction difficulty of irradiation and the design difficulty of the movement mode of the photovoltaic module, the unification of sufficient illumination of crops and the maximum utilization of solar energy is difficult to realize, so that the development of photovoltaic agriculture is limited.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a photovoltaic agricultural self-power supply system.
The invention provides a photovoltaic agricultural self-power supply system, which comprises: the system comprises a storage battery pack, a photovoltaic module, a tracking bracket, a sunlight prediction module, a control module, an intelligent planting subsystem and a data monitoring subsystem;
the photovoltaic module is arranged above the planting area through a tracking bracket, and the tracking bracket drives the photovoltaic module to rotate so as to adjust the light receiving area;
the photovoltaic module is respectively connected with the storage battery pack, the intelligent planting subsystem and the data monitoring subsystem and used for supplying power; the storage battery pack is also respectively connected with the intelligent planting subsystem and the data monitoring subsystem and used for supplying power;
the sunshine prediction module is connected with the data monitoring subsystem, and is used for acquiring crop growth information and acquiring a corresponding single-day solar irradiation value according to the crop growth information; the sunshine prediction module is also used for obtaining the current-day weather information in a networking manner and obtaining the current-day irradiation total value according to the current-day weather information and the geographical position of the planting area;
a plurality of motion modes of the tracking support are preset in the control module, and each motion mode is associated with a corresponding effective irradiation proportion; the effective irradiation proportion is the proportion of the total value of the effective irradiation and the daily irradiation received after the shielding value of the crops in the planting area is removed in the current movement mode of the tracking bracket;
the control module is connected with the sunlight prediction module and used for acquiring a current day movement mode of the tracking support according to the ratio of the single-day solar irradiation value to the total current day irradiation value and sending the current day movement mode to the tracking support.
Preferably, the control module is used for acquiring a movement mode corresponding to the minimum effective irradiation proportion as the current day movement mode when the single day solar irradiation value is larger than the current day irradiation total value; and when the ratio of the single-day solar irradiation value to the total current-day irradiation value is larger than the maximum effective irradiation proportion, acquiring the movement mode corresponding to the maximum effective irradiation proportion as the current-day movement mode.
Preferably, the ratio of the single-day solar irradiance value to the total current-day irradiance value is used as a reference value, and the control module is used for selecting the motion mode corresponding to the effective irradiance proportion closest to the reference value from the effective irradiance proportions larger than or equal to the reference value as the current-day motion mode when the reference value is larger than the minimum effective irradiance proportion and smaller than the maximum effective irradiance proportion.
Preferably, the photovoltaic module comprises a photovoltaic panel and a photovoltaic inverter, and the photovoltaic panel is respectively connected with the storage battery pack, the intelligent planting subsystem and the data monitoring subsystem through the photovoltaic inverter; the control module is connected with the photovoltaic inverter and used for controlling the power supply direction of the photovoltaic inverter.
Preferably, the storage battery pack comprises one or more storage batteries and further comprises a bidirectional inverter; the storage battery pack is respectively connected with the photovoltaic inverter, the intelligent planting subsystem and the data monitoring subsystem through the bidirectional inverter; the control module is connected with the bidirectional inverter and used for controlling the working state of the bidirectional inverter.
Preferably, three power supply states are arranged in the control module, and in the first power supply state, the photovoltaic module simultaneously supplies power to the storage battery pack, the intelligent planting subsystem and the data monitoring subsystem; in a second power supply state, the photovoltaic module and the storage battery pack simultaneously supply power to the intelligent planting subsystem and the data monitoring subsystem; in a third power supply state, the storage battery pack supplies power to the intelligent planting subsystem and the data monitoring subsystem; the control module controls the photovoltaic inverter and the bidirectional inverter to work according to the operation parameters of the photovoltaic inverter so as to switch three power supply states.
Preferably, the storage battery pack comprises two storage batteries, and the two storage batteries are respectively connected with the bidirectional inverter through a first relay and a second relay; the control module is respectively connected with the first relay and the second relay and used for controlling the first relay and the second relay to work according to the working state of the bidirectional inverter and the residual electric quantity of the storage battery.
Preferably, the bidirectional inverter further comprises an alarm module, and the control module is used for controlling the alarm module to send alarm information when the bidirectional inverter is in a charging state and the residual electric quantity of one storage battery fully filled with the other storage battery reaches a preset charging alarm electric quantity.
Preferably, the control module is further configured to control the alarm module to send alarm information when the bidirectional inverter is in a discharging state and the remaining power of one storage battery emptying the other storage battery reaches a preset discharging alarm power.
Preferably, the charging alarm electric quantity is 90%, and the discharging alarm electric quantity is 30%.
According to the photovoltaic agricultural self-power supply system provided by the invention, the movement mode of the photovoltaic component is adjusted every day according to the total daily irradiation value and the irradiation requirement of crop growth, so that sufficient illumination for crop growth every day is ensured, meanwhile, the sufficient utilization of abundant solar energy in a planting area is ensured by photovoltaic power supply while the illumination requirement for crop growth is met, and the self-power supply of intelligent planting in the planting area is realized.
According to the invention, the power supply of the intelligent planting subsystem and the data monitoring subsystem is realized through the photovoltaic voltage of the photovoltaic module, and the automatic electric energy supply of automatic planting is realized. Meanwhile, through the arrangement of the storage battery, when the output power of the photovoltaic assembly is larger than the sum of the power consumption of the intelligent planting subsystem and the power consumption of the data monitoring subsystem, the residual electric energy of the photovoltaic assembly can be stored through the storage battery, so that the intelligent planting subsystem and the data monitoring subsystem can be supplied with power through the storage battery when the power supply of the photovoltaic assembly is insufficient. Therefore, the photovoltaic power supply is stored and recycled, the power supply stability of the intelligent planting subsystem and the data monitoring subsystem is guaranteed, and the requirements of the intelligent planting subsystem and the data monitoring subsystem on external voltage are further reduced.
Drawings
FIG. 1 shows an embodiment of the present invention
Detailed Description
Referring to fig. 1, the photovoltaic agricultural self-powered system provided by the invention comprises: the system comprises a storage battery pack, a photovoltaic module, a tracking support, a sunlight prediction module, a control module, an intelligent planting subsystem and a data monitoring subsystem. The intelligent planting subsystem comprises automatic planting equipment such as an irrigation device, a pesticide spraying device and the like; the data monitoring subsystem comprises data acquisition equipment such as a temperature detection device, a humidity detection device, an illumination detection device and the like.
The photovoltaic module is installed above the planting area through the tracking support, and the tracking support drives the photovoltaic module to rotate so as to adjust the light receiving area. In specific implementation, the tracking support can adopt a single-shaft tracking support or a double-shaft tracking support, and any one of the existing tracking supports.
The photovoltaic module is respectively connected with the storage battery pack, the intelligent planting subsystem and the data monitoring subsystem and used for supplying power. The storage battery pack is also respectively connected with the intelligent planting subsystem and the data monitoring subsystem and used for supplying power. Therefore, in the embodiment, the power supply of the intelligent planting subsystem and the data monitoring subsystem is realized through the photovoltaic voltage of the photovoltaic module, and the automatic electric energy supply of automatic planting is realized. Meanwhile, through the arrangement of the storage battery, when the output power of the photovoltaic assembly is larger than the sum of the power consumption of the intelligent planting subsystem and the power consumption of the data monitoring subsystem, the residual electric energy of the photovoltaic assembly can be stored through the storage battery, so that the intelligent planting subsystem and the data monitoring subsystem can be supplied with power through the storage battery when the power supply of the photovoltaic assembly is insufficient. Therefore, the photovoltaic power supply is stored and recycled, the power supply stability of the intelligent planting subsystem and the data monitoring subsystem is guaranteed, and the requirements of the intelligent planting subsystem and the data monitoring subsystem on external voltage are further reduced.
And the sunlight prediction module is connected with the data monitoring subsystem and used for acquiring crop growth information and acquiring a corresponding single-day solar irradiation value according to the crop growth information. Specifically, basic solar irradiation quantities required by different crops in different growth periods every day are preset in the sunlight prediction module, the sunlight prediction module obtains the crop weight and the growth period of the current area from the data monitoring subsystem, and then the basic solar irradiation quantities required by the crops every day are obtained according to the crop weight and the growth period and serve as the single-day solar irradiation value.
The sunshine prediction module is also used for networking and acquiring the weather information of the current day, and is used for acquiring the total irradiation value of the current day according to the weather information of the current day and the geographical position of the planting area. Specifically, the total daily irradiation value is calculated by obtaining a daily clear sky irradiation value according to the earth movement law and the current date, obtaining a cloud layer shielding coefficient according to the daily weather information, and deleting the daily clear sky irradiation value by combining the cloud layer shielding coefficient to obtain the daily total irradiation value.
A plurality of motion modes of the tracking support are preset in the control module, and each motion mode is associated with a corresponding effective irradiation proportion. Specifically, in this embodiment, the effective irradiation ratio is a ratio of the total value of the effective irradiation and the total value of the daily irradiation received after the shielding value of the crops in the planting area is removed in the current movement mode of the tracking support.
The control module is connected with the sunlight prediction module and used for acquiring a current day movement mode of the tracking support according to the ratio of the single-day solar irradiation value to the total current day irradiation value and sending the current day movement mode to the tracking support.
Specifically, in this embodiment, the control module is configured to, when the single-day solar radiation value is greater than the total current-day radiation value, obtain a motion mode corresponding to the minimum effective radiation proportion as a current-day motion mode; and when the ratio of the single-day solar irradiation value to the total current-day irradiation value is larger than the maximum effective irradiation proportion, acquiring the movement mode corresponding to the maximum effective irradiation proportion as the current-day movement mode.
Meanwhile, the ratio of the single-day solar irradiation value to the total current-day irradiation value is used as a reference value, and the control module is used for selecting the motion mode corresponding to the effective irradiation proportion closest to the reference value from the effective irradiation proportions larger than or equal to the reference value as the current-day motion mode when the reference value is larger than the minimum effective irradiation proportion and smaller than the maximum effective irradiation proportion.
In this way, in the present embodiment, according to the total daily irradiation value and the irradiation demand for crop growth, daily adjustment of the movement pattern of the photovoltaic module is realized, sufficient illumination for crop growth every day is ensured, and meanwhile, sufficient solar energy in the planting area is fully utilized by photovoltaic power supply while the illumination demand for crop growth is met, and self-power supply for intelligent planting in the planting area is realized.
Specifically, in the embodiment, three power supply states are set in the control module, and in the first power supply state, the photovoltaic module simultaneously supplies power to the storage battery pack, the intelligent planting subsystem and the data monitoring subsystem; in a second power supply state, the photovoltaic module and the storage battery pack simultaneously supply power to the intelligent planting subsystem and the data monitoring subsystem; and in a third power supply state, the storage battery pack supplies power to the intelligent planting subsystem and the data monitoring subsystem.
In the embodiment, the photovoltaic module comprises a photovoltaic panel and a photovoltaic inverter, wherein the photovoltaic panel is respectively connected with the storage battery pack, the intelligent planting subsystem and the data monitoring subsystem through the photovoltaic inverter; the control module is connected with the photovoltaic inverter and used for controlling the power supply direction of the photovoltaic inverter. The storage battery pack comprises one or more storage batteries and also comprises a bidirectional inverter; the storage battery pack is respectively connected with the photovoltaic inverter, the intelligent planting subsystem and the data monitoring subsystem through the bidirectional inverter; the control module is connected with the bidirectional inverter and used for controlling the working state of the bidirectional inverter.
The control module controls the photovoltaic inverter and the bidirectional inverter to work according to the operation parameters of the photovoltaic inverter so as to switch three power supply states.
Specifically, in this embodiment, the control module monitors the sum of the working powers of the intelligent planting subsystem and the data monitoring subsystem in real time as the real-time power consumption power, the control module monitors the output power of the photovoltaic inverter in real time as the photovoltaic power supply power, and the control module is configured to control switching of the three power supply states according to a comparison result between the photovoltaic power supply power and the real-time power consumption power.
Specifically, when the photovoltaic power supply power is greater than the real-time power consumption power and the difference between the photovoltaic power supply power and the real-time power consumption power is greater than or equal to a preset first floating difference value, the control module controls the bidirectional inverter to adjust to the charging state so as to achieve the first power supply state, the charging power is determined by the difference between the photovoltaic power supply power and the real-time power consumption power, and redundant photovoltaic electric energy is stored.
When the difference value between the photovoltaic power supply power and the real-time power consumption power is smaller than a preset first floating difference value, the control module controls the bidirectional inverter to adjust to the discharging state so as to realize the second power supply state, the discharging power is determined by the difference value between the real-time power consumption power and the photovoltaic power supply power, so that the power supply voltages of the intelligent planting subsystem and the data monitoring subsystem are regulated and controlled in real time through the stored electric energy of the storage battery pack, and the working stability is guaranteed. Specifically, in the second operating state, when the photovoltaic power supply power is greater than or equal to the real-time power consumption power, the discharge power of the bidirectional inverter is 0.
When the output power of the photovoltaic inverter is 0, the control module controls the bidirectional inverter to adjust to a discharging state and controls the photovoltaic inverter to be cut off so as to prevent the storage battery pack from reversely charging the photovoltaic module. Specifically, in the present embodiment, the photovoltaic inverter is controlled to be turned on according to the comparison result between the single-day solar irradiance value and the total current-day irradiance value. Specifically, when the single-day solar irradiation value is smaller than the total daily irradiation value, the control module controls the photovoltaic inverter to enter the working state.
In the embodiment, the storage battery pack comprises two storage batteries, and the two storage batteries are respectively connected with the bidirectional inverter through a first relay and a second relay; the control module is respectively connected with the first relay and the second relay and used for controlling the first relay and the second relay to work according to the working state of the bidirectional inverter and the residual electric quantity of the storage battery. Specifically, in the charging state of the bidirectional inverter, if the currently-charged storage battery is fully charged, the other storage battery is switched to be charged through switching of the working states of the first relay and the second relay so as to avoid floating charge of the storage battery; meanwhile, in the discharging state of the bidirectional inverter, if the currently charged storage battery is emptied, the other storage battery is switched to discharge through the switching of the working states of the first relay and the second relay so as to ensure the stability of power supply.
In this embodiment, the bidirectional inverter further comprises an alarm module, and the control module is configured to control the alarm module to send alarm information when the bidirectional inverter is in a charging state and the remaining power of one storage battery fully charged in the other storage battery reaches a preset charging alarm power. So as to remind the staff in time to change the battery that is full of to guarantee storage battery to the sufficient storage of photovoltaic electric energy through the battery change. Similarly, the control module is also used for controlling the alarm module to send alarm information when the bidirectional inverter is in a discharge state and the residual electric quantity of one storage battery and the other storage battery is discharged to reach the preset discharge alarm electric quantity. So as to remind the staff to change the emptied storage battery in time, thereby ensuring that the storage battery pack has enough electric energy to supply power. Specifically, in the present embodiment, the charging alarm electric quantity is 90%, and the discharging alarm electric quantity is 30%.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. A photovoltaic agricultural self-powered system, comprising: the system comprises a storage battery pack, a photovoltaic module, a tracking bracket, a sunlight prediction module, a control module, an intelligent planting subsystem and a data monitoring subsystem;
the photovoltaic module is arranged above the planting area through a tracking bracket, and the tracking bracket drives the photovoltaic module to rotate so as to adjust the light receiving area;
the photovoltaic module is respectively connected with the storage battery pack, the intelligent planting subsystem and the data monitoring subsystem and used for supplying power; the storage battery pack is also respectively connected with the intelligent planting subsystem and the data monitoring subsystem and used for supplying power;
the sunshine prediction module is connected with the data monitoring subsystem, and is used for acquiring crop growth information and acquiring a corresponding single-day solar irradiation value according to the crop growth information; the sunshine prediction module is also used for obtaining the current-day weather information in a networking manner and obtaining the current-day irradiation total value according to the current-day weather information and the geographical position of the planting area;
a plurality of motion modes of the tracking support are preset in the control module, and each motion mode is associated with a corresponding effective irradiation proportion; the effective irradiation proportion is the proportion of the total value of the effective irradiation and the daily irradiation received after the shielding value of the crops in the planting area is removed in the current movement mode of the tracking bracket;
the control module is connected with the sunlight prediction module and used for acquiring a current day movement mode of the tracking support according to the ratio of the single-day solar irradiation value to the total current day irradiation value and sending the current day movement mode to the tracking support.
2. The photovoltaic agricultural self-power-supply system according to claim 1, wherein the control module is configured to obtain a movement pattern corresponding to the minimum effective irradiation proportion as the current-day movement pattern when the single-day solar irradiation value is greater than the total current-day irradiation value; and when the ratio of the single-day solar irradiation value to the total current-day irradiation value is larger than the maximum effective irradiation proportion, acquiring the movement mode corresponding to the maximum effective irradiation proportion as the current-day movement mode.
3. The photovoltaic agricultural self-power-supply system according to claim 2, wherein the control module is configured to select a movement pattern corresponding to an effective irradiation proportion closest to the reference value from the effective irradiation proportions larger than or equal to the reference value as the current-day movement pattern when the reference value is larger than the minimum effective irradiation proportion and smaller than the maximum effective irradiation proportion, with a ratio of the single-day solar irradiation value to the total current-day irradiation value as the reference value.
4. The photovoltaic agricultural self-power supply system according to claim 1, wherein the photovoltaic module comprises a photovoltaic panel and a photovoltaic inverter, the photovoltaic panel is respectively connected with the storage battery pack, the intelligent planting subsystem and the data monitoring subsystem through the photovoltaic inverter; the control module is connected with the photovoltaic inverter and used for controlling the power supply direction of the photovoltaic inverter.
5. The photovoltaic agricultural self-powered system of claim 4, wherein the battery pack comprises one or more batteries, further comprising a bi-directional inverter; the storage battery pack is respectively connected with the photovoltaic inverter, the intelligent planting subsystem and the data monitoring subsystem through the bidirectional inverter; the control module is connected with the bidirectional inverter and used for controlling the working state of the bidirectional inverter.
6. The photovoltaic agricultural self-power-supply system according to claim 5, wherein three power supply states are provided in the control module, and in a first power supply state, the photovoltaic module simultaneously supplies power to the storage battery pack, the intelligent planting subsystem and the data monitoring subsystem; in a second power supply state, the photovoltaic module and the storage battery pack simultaneously supply power to the intelligent planting subsystem and the data monitoring subsystem; in a third power supply state, the storage battery pack supplies power to the intelligent planting subsystem and the data monitoring subsystem; the control module controls the photovoltaic inverter and the bidirectional inverter to work according to the operation parameters of the photovoltaic inverter so as to switch three power supply states.
7. The photovoltaic agricultural self-power supply system according to claim 5, wherein the storage battery pack comprises two storage batteries, and the two storage batteries are respectively connected with the bidirectional inverter through a first relay and a second relay; the control module is respectively connected with the first relay and the second relay and used for controlling the first relay and the second relay to work according to the working state of the bidirectional inverter and the residual electric quantity of the storage battery.
8. The photovoltaic agricultural self-power supply system according to claim 7, further comprising an alarm module, wherein the control module is configured to control the alarm module to send an alarm message when the bidirectional inverter is in the charging state and the remaining power of one storage battery fully charged in the other storage battery reaches a preset charging alarm power.
9. The photovoltaic agricultural self-power supply system according to claim 8, wherein the control module is further configured to control the alarm module to send alarm information when the bidirectional inverter is in a discharging state and one storage battery empties to reach a preset discharging alarm electric quantity.
10. The photovoltaic agricultural self-powered system of claim 9, wherein the charging alarm charge is 90% and the discharging alarm charge is 30%.
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| CN206180681U (en) * | 2016-11-03 | 2017-05-17 | 三峡大学 | Novel photovoltaic pump is control system |
| CN109004894A (en) * | 2018-08-06 | 2018-12-14 | 北京铂阳顶荣光伏科技有限公司 | A kind of photovoltaic system |
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