CN107219862A - Control method of photovoltaic extension system - Google Patents
Control method of photovoltaic extension system Download PDFInfo
- Publication number
- CN107219862A CN107219862A CN201710267449.8A CN201710267449A CN107219862A CN 107219862 A CN107219862 A CN 107219862A CN 201710267449 A CN201710267449 A CN 201710267449A CN 107219862 A CN107219862 A CN 107219862A
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- photovoltaic
- extending system
- extending
- retracted position
- environment
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000002045 lasting effect Effects 0.000 claims description 23
- 230000008602 contraction Effects 0.000 claims description 16
- 238000010248 power generation Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a control method of a photovoltaic extension system. The control method of the photovoltaic extension system comprises the following steps: acquiring a current telescopic state of the photovoltaic extension system; acquiring the current environment of the photovoltaic extension system; and controlling the stretching state of the photovoltaic extension system according to the current stretching state and the current environment of the photovoltaic extension system. According to the control method of the photovoltaic extension system, automatic control can be performed according to the environment of the photovoltaic extension system, the intelligent degree is high, and the power generation amount of the photovoltaic extension system can be effectively guaranteed.
Description
Technical field
The present invention relates to field of photovoltaic technology, in particular to a kind of control method of photovoltaic extending system.
Background technology
Existing photovoltaic extending system carries out stretching for photovoltaic extending system usually using control panel or using default program
Contract, when photovoltaic extending system needs to deploy or shunk, user can only manually control or set fixation by program
Time allows photovoltaic extending system to stretch, and the environment that this control for resulting in photovoltaic extending system can not be according to residing for it is flexibly adjusted
Section, reduces the automaticity of photovoltaic extending system, influences the generating efficiency of photovoltaic extending system.
The content of the invention
A kind of control method of photovoltaic extending system is provided in the embodiment of the present invention, can be according to residing for photovoltaic extending system
Environment automatically controlled, intelligence degree is high, and the generated energy of photovoltaic extending system can be effectively ensured.
To achieve the above object, the embodiment of the present invention provides a kind of control method of photovoltaic extending system, including：Obtain light
Lie prostrate the current retracted position of extending system；Obtain photovoltaic extending system is presently in environment；According to working as photovoltaic extending system
Front stretching state and it is presently in environment the retracted position of photovoltaic extending system is controlled.
Preferably, being presently in environment including at least one following：Solar energy irradiation level, ambient wind velocity and guide rail
Deformation.
Preferably, according to the current retracted position of photovoltaic extending system and being presently in environment to photovoltaic extending system
The step of retracted position is controlled includes：When photovoltaic extending system is in contraction state；Whether determine solar energy irradiation level
Less than or equal to a and lasting t1 times；When solar energy irradiation level is less than or equal to a and lasting t1 times, photovoltaic is kept to extend
System is in contraction state.
Preferably, according to the current retracted position of photovoltaic extending system and being presently in environment to photovoltaic extending system
The step of retracted position is controlled also includes：When solar energy irradiation level is more than a, determine whether ambient wind velocity is more than or equal to
B and lasting t2 times；When ambient wind velocity is more than or equal to b and lasting t2 times, photovoltaic extending system is kept to be in contraction-like
State.
Preferably, according to the current retracted position of photovoltaic extending system and being presently in environment to photovoltaic extending system
The step of retracted position is controlled also includes：When ambient wind velocity is less than b, the guide rail deformation where photovoltaic extending system is determined
Whether it is more than or equal to c and continues the t3 times；When the guide rail deformation where photovoltaic extending system is more than or equal to c and continues t3
Between when, keep photovoltaic extending system to be in contraction state and alarmed；When the guide rail deformation where photovoltaic extending system is less than c
When, control photovoltaic extending system deploys and kept.
Preferably, according to the current retracted position of photovoltaic extending system and being presently in environment to photovoltaic extending system
The step of retracted position is controlled includes：When photovoltaic extending system is in deployed condition；Whether determine solar energy irradiation level
Less than d and lasting t4 times；When solar energy irradiation level is less than d and lasting t4 times, control photovoltaic extending system shrinks.
Preferably, according to the current retracted position of photovoltaic extending system and being presently in environment to photovoltaic extending system
The step of retracted position is controlled also includes：When solar energy irradiation level is more than or equal to d, determine whether ambient wind velocity is big
In e and lasting t5 times；When ambient wind velocity is more than e and lasting t5 times, control photovoltaic extending system shrinks.
Preferably, according to the current retracted position of photovoltaic extending system and being presently in environment to photovoltaic extending system
The step of retracted position is controlled also includes：When ambient wind velocity is less than or equal to e, leading where photovoltaic extending system is determined
Whether rail deformation is more than f and continues the t6 times；When the guide rail deformation where photovoltaic extending system is more than f and lasting t6 times,
Photovoltaic extending system is controlled to shrink；When the guide rail deformation where photovoltaic extending system is less than or equal to f, returns and determine solar energy
The step of whether irradiation level is less than d and lasting t4 times.
Preferably, after the step of obtaining the current retracted position of photovoltaic extending system, obtaining photovoltaic extending system
Also include before the step of being presently in environment：Detect the motion state of photovoltaic extending system；When photovoltaic extending system is in fortune
During dynamic state, control photovoltaic extending system is in contraction state.
Preferably, photovoltaic extending system is photovoltaic container.
Apply the technical scheme of the present invention, the control method of photovoltaic extending system includes：Obtain working as photovoltaic extending system
Front stretching state；Obtain photovoltaic extending system is presently in environment；According to the current retracted position of photovoltaic extending system and work as
Preceding local environment is controlled to the retracted position of photovoltaic extending system.The control method of the photovoltaic extending system can be according to light
Lie prostrate the current retracted position of extending system and be presently in environment and the retracted position of itself is controlled, so as to realize
Photovoltaic extending system automatically selects suitable retracted position according to local environment so that photovoltaic extending system can be in current environment
While lower safe and stable operation, the Energy Maximization of photovoltaic extending system can be made, the utilization rate of photovoltaic energy is improved, carry
The intellectuality of high photovoltaic system and automaticity, realize left unguarded, save human cost.
Brief description of the drawings
Fig. 1 is the control principle drawing of the control method of the photovoltaic extending system of the embodiment of the present invention；
Fig. 2 is the control flow chart of the control method of the photovoltaic extending system of the embodiment of the present invention.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as the limit to the present invention
It is fixed.
Solar energy irradiance sensor, air velocity transducer, Yi Jiwei are provided with photovoltaic extending system in the present embodiment
Displacement sensor, is provided with guide rail changing sensor on the guide rail where photovoltaic extending system, and solar energy irradiance sensor is used
With the irradiation level of detecting system surrounding environment, wind speed of the air velocity transducer to detect environment, guide rail changing sensor is to examine
The deformation of light-metering volt-ampere dress guide rail.Sensor detects the information taken detected to controller, controller according to sensor
The telescoping mechanisms such as the electric pushrod of information control photovoltaic extending system realize the flexible of extending system.
With reference to shown in referring to Fig. 1 and Fig. 2, embodiments in accordance with the present invention, the control method of photovoltaic extending system includes：Obtain
Take the current retracted position of photovoltaic extending system；Obtain photovoltaic extending system is presently in environment；According to photovoltaic extending system
Current retracted position and be presently in environment the retracted position of photovoltaic extending system be controlled.
The control method of the photovoltaic extending system can be according to photovoltaic extending system current retracted position and current institute
Place's environment is controlled to the retracted position of itself, so as to realize that photovoltaic extending system automatically selects conjunction according to local environment
Suitable retracted position so that photovoltaic extending system can under the present circumstances safe and stable operation while, photovoltaic can be prolonged
The Energy Maximization of exhibition system, improves the utilization rate of photovoltaic energy, improves intellectuality and the automaticity of photovoltaic system, real
Existing left unguarded, saves human cost.
Environment is presently in including at least one following：Solar energy irradiation level, ambient wind velocity and guide rail deformation.
According to the current retracted position of photovoltaic extending system and being presently in retracted position of the environment to photovoltaic extending system
The step of being controlled includes：When photovoltaic extending system is in contraction state；Determine whether solar energy irradiation level is less than or waits
In a and lasting t1 times；When solar energy irradiation level is less than or equal to a and lasting t1 times, photovoltaic extending system is kept to be in
Contraction state.A herein is, for example, 200W/ ㎡, and t1 is, for example, 1min.Above-mentioned numerical value can be set according to actual conditions
It is fixed, it is not limited to cited numerical value.
Determine whether solar energy irradiation level G reaches requirement first, if this is due to if solar energy irradiation level can not reach
It to requiring, then cannot be met using the fundamental prerequisite of photovoltaic generation, also need not just carry out the judgement of other situations, therefore,
Need it is first determined whether disclosure satisfy that the most basic irradiation level requirement of photovoltaic generation.When that can not meet this and require, so that it may
To cause photovoltaic extending system to remain retracted state, when disclosure satisfy that irradiation level requirement, it is possible to carry out sentencing for other conditions
It is disconnected, so that it is determined that whether current environment needs to make the expansion of photovoltaic extending system be generated electricity.
In the present embodiment, according to the current retracted position of photovoltaic extending system and be presently in environment to photovoltaic extend be
The step of retracted position of system is controlled also includes：When solar energy irradiation level is more than a, determine whether ambient wind velocity S is more than
Or equal to b and continue the t2 times；When ambient wind velocity is more than or equal to b and lasting t2 times, photovoltaic extending system is kept to be in
Contraction state.B herein is, for example, 8m/s, and t2 is, for example, 1min.
When solar energy irradiation level reaches the stretching, extension condition of photovoltaic extending system, if ambient wind velocity is excessive, photovoltaic extends
System is possible to that the safe work of photovoltaic extending system can be influenceed because front face area is excessive and causes safety problem when deploying
Make, therefore, if ambient wind velocity has exceeded wind speed setting, just explanation photovoltaic extending system can not safe and stable operation, now still
So need to keep photovoltaic extending system to be in contraction state.When ambient wind velocity be in wind speed setting in the range of when, now need into
One step is judged photovoltaic extending system local environment, so that it is guaranteed that photovoltaic extending system can be in the environment of safety and stability
Generated electricity.
In the present embodiment, according to the current retracted position of photovoltaic extending system and be presently in environment to photovoltaic extend be
The step of retracted position of system is controlled also includes：When ambient wind velocity is less than b, the guide rail where photovoltaic extending system is determined
Whether deformation γ is more than or equal to c and continues the t3 times；When the guide rail deformation where photovoltaic extending system is more than or equal to c and holds
During the continuous t3 times, photovoltaic extending system is kept to be in contraction state and alarmed；When the guide rail shape where photovoltaic extending system
When becoming less than c, control photovoltaic extending system deploys and kept.C herein is, for example, that 0.01, t3 is, for example, 1min.
In general, the expansion of photovoltaic extending system is carried out along guide rail, if the deformation of guide rail is excessive, Jiu Huizao
Can not normally it deploy into photovoltaic extending system, if forcing expansion, it is possible to cause photovoltaic extending system to damage, because
This, when controlling the expansion of photovoltaic extending system, it is necessary to be detected first to guide rail deformation, can be pacified with true photovoltaic extending system
Full expansion.When the guide rail deformation is in setting range, just explanation photovoltaic extending system can deploy safely, can now lead to
Crossing controller control electric pushrod etc. promotes photovoltaic to install guide rail so that photovoltaic extending system is in deployed condition, carries out normal
Power generation operation.If guide rail deformation is beyond setting range, just explanation guide rail deformation is excessive, and photovoltaic extending system can not be normal
Expansion, now needs to keep photovoltaic extending system to shrink, and reports rail deformation failure, to be placed under repair in time to guide rail, protects
Card photovoltaic extending system can normally deploy.
According to the current retracted position of photovoltaic extending system and being presently in retracted position of the environment to photovoltaic extending system
The step of being controlled includes：When photovoltaic extending system is in deployed condition；Determine whether solar energy irradiation level is less than d and holds
The continuous t4 times；When solar energy irradiation level is less than d and lasting t4 times, control photovoltaic extending system shrinks.D herein is, for example,
200W/ ㎡, t4 are, for example, 1min.
According to the current retracted position of photovoltaic extending system and being presently in retracted position of the environment to photovoltaic extending system
The step of being controlled also includes：When solar energy irradiation level is more than or equal to d, determine whether ambient wind velocity is more than e and holds
The continuous t5 times；When ambient wind velocity is more than e and lasting t5 times, control photovoltaic extending system shrinks.E herein is, for example, 8m/
S, t2 are, for example, 5s.
According to the current retracted position of photovoltaic extending system and being presently in retracted position of the environment to photovoltaic extending system
The step of being controlled also includes：When ambient wind velocity is less than or equal to e, the guide rail deformation where determining photovoltaic extending system is
It is no to be more than f and continue the t6 times；When the guide rail deformation where photovoltaic extending system is more than f and lasting t6 times, photovoltaic is controlled
Extending system shrinks；When the guide rail deformation where photovoltaic extending system is less than or equal to f, returns and determine that solar energy irradiation level is
It is not no the step of be less than d and continue t4 times.F herein is, for example, that 0.01, t6 is, for example, 5s.
After the step of obtaining the current retracted position of photovoltaic extending system, obtain photovoltaic extending system is presently in ring
Also include before the step of border：Detect the motion state of photovoltaic extending system；When photovoltaic extending system is kept in motion, control
Photovoltaic extending system processed is in contraction state.When photovoltaic extending system is kept in motion, now photovoltaic extending system may
Either it is handled upside down in displacement state, therefore in the state of expansion is not suitable for, in the case, without to residing
Environment is detected, directly controls photovoltaic extending system to be in contraction state.
Photovoltaic extending system is by the way that the sensor moment is in the solar irradiation intensity of detection environment, ambient wind velocity and installs guide rail
Deformation, ambient wind velocity is excessive or assembly surface accumulated snow overload or installing guide material failure causes guide rail deformation excessive
Etc. jeopardize photovoltaic extending system it is safe when control expansion photovoltaic extending system shrink, it is ensured that the safety that photovoltaic extending system is used
Property and reliability, improve photovoltaic extending system service life.
Above-mentioned solar energy irradiation level, the size of wind speed and guide rail deformation may be sized to arbitrary parameter, depending on prolonging
Depending on the putting position of exhibition system or user's request.
Photovoltaic extending system is, for example, photovoltaic container, or other photovoltaic extending systems.Due to container top
Portion's area limitation photovoltaic module laying, photovoltaic extending system can increase photovoltaic panel laying quantity, improve system generated energy, simultaneously
Photovoltaic extending system can shrink automatically, save space and be readily transported.Because the photovoltaic extending system can be meteorological with automatic detection
Environmental factor and guide rail deformation situation realize and automatically control, thus can in the case of offer system generated energy is provided strengthening system
Safety and reliability.
Certainly, above is the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art
For, on the premise of its general principles are not departed from, some improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of control method of photovoltaic extending system, it is characterised in that including：
Obtain the current retracted position of photovoltaic extending system；
Obtain photovoltaic extending system is presently in environment；
The retracted position of photovoltaic extending system is carried out with environment is presently according to the current retracted position of photovoltaic extending system
Control.
2. the control method of photovoltaic extending system according to claim 1, it is characterised in that described to be presently in environment bag
Include at least one following：
Solar energy irradiation level, ambient wind velocity and guide rail deformation.
3. the control method of photovoltaic extending system according to claim 2, it is characterised in that described to be according to photovoltaic extension
The current retracted position of system and it is presently in the step of environment is controlled to the retracted position of photovoltaic extending system and includes：
When photovoltaic extending system is in contraction state；
Determine whether solar energy irradiation level is less than or equal to a and continues the t1 times；
When solar energy irradiation level is less than or equal to a and lasting t1 times, photovoltaic extending system is kept to be in contraction state.
4. the control method of photovoltaic extending system according to claim 3, it is characterised in that described to be according to photovoltaic extension
The current retracted position of system and it is presently in the step of environment is controlled to the retracted position of photovoltaic extending system and also includes：
When solar energy irradiation level is more than a,
Determine whether ambient wind velocity is more than or equal to b and continues the t2 times；
When ambient wind velocity is more than or equal to b and lasting t2 times, photovoltaic extending system is kept to be in contraction state.
5. the control method of photovoltaic extending system according to claim 4, it is characterised in that described to be according to photovoltaic extension
The current retracted position of system and it is presently in the step of environment is controlled to the retracted position of photovoltaic extending system and also includes：
When ambient wind velocity is less than b,
Whether the guide rail deformation where determining photovoltaic extending system is more than or equal to c and continues the t3 times；
When the guide rail deformation where photovoltaic extending system is more than or equal to c and lasting t3 times, keep at photovoltaic extending system
In contraction state and alarmed；
When the guide rail deformation where photovoltaic extending system is less than c, control photovoltaic extending system deploys and kept.
6. the control method of photovoltaic extending system according to claim 2, it is characterised in that described to be according to photovoltaic extension
The current retracted position of system and it is presently in the step of environment is controlled to the retracted position of photovoltaic extending system and includes：
When photovoltaic extending system is in deployed condition；
Determine whether solar energy irradiation level is less than d and continues the t4 times；
When solar energy irradiation level is less than d and lasting t4 times, control photovoltaic extending system shrinks.
7. the control method of photovoltaic extending system according to claim 6, it is characterised in that described to be according to photovoltaic extension
The current retracted position of system and it is presently in the step of environment is controlled to the retracted position of photovoltaic extending system and also includes：
When solar energy irradiation level is more than or equal to d,
Determine whether ambient wind velocity is more than e and continues the t5 times；
When ambient wind velocity is more than e and lasting t5 times, control photovoltaic extending system shrinks.
8. the control method of photovoltaic extending system according to claim 7, it is characterised in that described to be according to photovoltaic extension
The current retracted position of system and it is presently in the step of environment is controlled to the retracted position of photovoltaic extending system and also includes：
When ambient wind velocity is less than or equal to e,
Whether the guide rail deformation where determining photovoltaic extending system is more than f and continues the t6 times；
When the guide rail deformation where photovoltaic extending system is more than f and lasting t6 times, control photovoltaic extending system shrinks；
When the guide rail deformation where photovoltaic extending system is less than or equal to f, return determine solar energy irradiation level whether be less than d and
The step of lasting t4 times.
9. the control method of photovoltaic extending system according to claim 1, it is characterised in that the acquisition photovoltaic, which extends, is
System current retracted position the step of after, obtain photovoltaic extending system the step of being presently in environment before also include：
Detect the motion state of photovoltaic extending system；
When photovoltaic extending system is kept in motion, control photovoltaic extending system is in contraction state.
10. the control method of photovoltaic extending system according to any one of claim 1 to 9, it is characterised in that the light
Volt extending system is photovoltaic container.
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| CN201710267449.8A CN107219862B (en) | 2017-04-21 | 2017-04-21 | Control method of photovoltaic extension system |
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|---|---|---|---|
| CN201710267449.8A CN107219862B (en) | 2017-04-21 | 2017-04-21 | Control method of photovoltaic extension system |
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| CN106508489A (en) * | 2016-10-21 | 2017-03-22 | 福建农林大学 | Light-adjustable folding type diffusing glass greenhouse photovoltaic sunshade curtain |
| CN106452298A (en) * | 2016-11-04 | 2017-02-22 | 东莞市北扬工业设计有限公司 | Bracket capable of folding and storing photovoltaic panel |
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