CN106843288A - Photovoltaic tracking support regards daily motion control system and method - Google Patents
Photovoltaic tracking support regards daily motion control system and method Download PDFInfo
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- CN106843288A CN106843288A CN201710135445.4A CN201710135445A CN106843288A CN 106843288 A CN106843288 A CN 106843288A CN 201710135445 A CN201710135445 A CN 201710135445A CN 106843288 A CN106843288 A CN 106843288A
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- support
- motion control
- tracking
- attitude
- daily motion
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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
Abstract
Daily motion control system is regarded the invention discloses a kind of photovoltaic tracking support, it is characterised in that：Described photovoltaic tracking support includes support post, photovoltaic module support frame, angle of pitch rotary drive mechanism, azimuth rotary drive mechanism；Described angle of pitch rotary drive mechanism and azimuth rotary drive mechanism are connected by respective power line and holding wire with depending on daily motion control system respectively；Described includes position of sun detection sensor, support attitude detecting sensor, photovoltaic module generation current sensor, position of sun calculator, central controller, motor driver, support tracking attitude data storehouse and self study inference machine regarding daily motion control system.In addition, regarding daily motion control method present invention also offers a kind of photovoltaic tracking support.
Description
Technical field：
Can enter automatically the present invention relates to a kind of automatic control system and method for photovoltaic tracking support, more particularly to one kind
System and method of the row regarding daily motion control.
Background technology：
Photovoltaic tracking support can make the generated energy of photovoltaic module improve more than 15% compared to fixed support.At present, use
It is main by following three kinds regarding daily motion control method in photovoltaic tracking support：(1) light-operated tracking mode；(2) time control track side
Formula；(3) support attitude detection closed loop feedback tracks multiplex mode with time control.Wherein (1) light-operated tracking mode is by detecting too
The direction of motion of sun, controls photovoltaic tracking support to follow the trail of the operation of the sun.The method sensitivity is high, and structure design is more simple
It is single, but when direct sunlight is inadequate, is easily caused detection failure and correct trace instruction cannot be sent.(2) time control track side
Formula is the motion for controlling to track support by calculating solar motion track.This mode is not influenceed by weather and veiling glare,
But due to being open loop control mode, it is impossible to which the manufacturing and fixing error to support is modified.(3) support attitude detection closed loop is anti-
Feedback tracks multiplex mode with time control, is as closed loop feedback signal, to the mistake of time control algorithm with the attitude detecting sensor of support
Difference is modified, and solves dependence of the light-operated mode to direct sunlight.There is problems with the above method：(1) due to system
Reliable operating depends on the sun to detect life-span and the precision of optical sensor or support attitude detecting sensor, when event occurs in sensor
During barrier, system will be unable to effectively operating；(2) because the flatness that photovoltaic module is installed on support is changed greatly, when sun inspection
When survey sensor or support attitude detecting sensor are directed at the sun in itself, all of photovoltaic module is all aligned too on the fixed rack that differs
Sun, correspondingly, photovoltaic module electricity amount is not necessarily maximum.
The content of the invention：
It is an object of the invention in view of the shortcomings of the prior art, provide a kind of photovoltaic tracking support controls system regarding daily motion
System, the side of four mode multiplexings is tracked using time control tracking, light-operated tracking, the tracking of support attitude detection closed loop feedback, historical data
Method, realizes all weather operations, the effect that overall power generation ability is strong, system operation reliability is high.
To achieve these goals, the technical scheme is that：
A kind of photovoltaic tracking support regards daily motion control system, and the photovoltaic tracking support includes support post, photovoltaic module
Support frame, angle of pitch rotary drive mechanism, azimuth rotary drive mechanism.Angle of pitch rotary drive mechanism and azimuth rotation are driven
Motivation structure is connected by respective power line and holding wire with depending on daily motion control system respectively.Its feature is that should be transported regarding day
Autocontrol system includes position of sun detection sensor, support attitude detecting sensor, photovoltaic module generation current sensor, too
Positive position calculator, central controller, motor driver, support tracking attitude data storehouse and self study inference machine.Wherein,
The position of sun detection sensor is fixed on photovoltaic module support frame, as photovoltaic module is moved together.This is too
Position of sun signal detected by positive position sensor is sent in central controller.
The support attitude detecting sensor detects support appearance of the photovoltaic tracking support in azimuth direction and pitching angular direction
State angle value.Support attitude detecting sensor is fixed on photovoltaic module support frame, as photovoltaic module is moved together.The support
Support attitude signal detected by attitude detecting sensor is sent in central controller.
The photovoltaic module generation current sensor is located in the electricity-generating circuit of photovoltaic module, for detecting photovoltaic generation electricity
Stream.Detected photovoltaic module generation current signal is sent in central controller.
The position of sun calculator according to the longitude and latitude and height above sea level in photovoltaic tracking support location and it is current when
Clock, calculates the gross data of position of sun, i.e. azimuth and elevation angle, and result of calculation is sent into central controller.
The central controller is according to solar theory position data and position of sun detection sensor data, support attitude number
According to, photovoltaic module generation current data, calculating is analyzed, most backward angle of pitch rotary drive mechanism, azimuth rotation driving
Mechanism sends action command, completes regarding day action.
Support tracking attitude self study inference machine is recorded the analytical calculation process of central controller, and according to right
The current peak answered carries out computational methods optimization, forms the knowledge point of self-teaching.
Knowledge point and corresponding photovoltaic tracking that support tracking attitude self study database produces self study inference machine
Support attitude data, timestamp, photovoltaic module generation current data are stored in database, history of forming data.
Used as a total technology design, the present invention also provides a kind of photovoltaic tracking support regarding daily motion control method, tool
Body is comprised the following steps：
(1) determined whether to be tracked according to current time：If current time after the sunrise time on the same day and
Before sunset time, start and regard daily motion control program；Do not start otherwise.Sunrise and sunset time are by position of sun calculator
Obtain, in belonging to ripe prior art.
(2) central controller is driven by being rotated regarding daily motion control program command (CP command) angle of pitch rotary drive mechanism and azimuth
Motivation structure setting in motion, makes photovoltaic tracking support go to original position.Original position is exactly to track start time sunray to hang down
Straight incident position.
(3) judge weather conditions, select tracing mode.After tracking support goes to original position, central controller is every setting
Fix time and gather an output signal for position of sun detection sensor.If signal intensity is more than preset value, using light-operated
Tracing mode；If signal intensity is less than preset value, using non-light-operated tracing mode.
(4) under non-light-operated tracing mode, self-inspection is carried out to support attitude detecting sensor.If sensor feedback data
Normally, then into attitude detection closed loop feedback tracing mode；Otherwise, into time control pattern.
(5) under optical mode control, attitude detection closed loop feedback tracing mode, time control pattern, to the generating electricity of photovoltaic module
Stream is detected, and current detection value is associated with support attitude and timestamp, starts self-studying mode.
(6) as the maximum current that long-play is produced constantly adds up with the support attitude data for associating, and by branch
Frame tracking attitude self study inference machine carries out data mining, finds optimal tracking array, is stored in knowledge base.With knowledge base not
It is disconnected perfect, when the data cover whole year operation cycle of optimal tracking array, start historical data tracing mode.
Beneficial effects of the present invention are：Round-the-clock tracking mode, different tracing modes are provided according to different weather condition
With Energy Maximization as final goal, the historical data accumulated by self-learning method carries out being subordinate to data tracking pattern for multiplexing
It is effectively improved the reliability of system.
Brief description of the drawings：
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is main composition schematic diagram of the invention.
Wherein：1- support posts；2- photovoltaic module support frames；3- angle of pitch rotary drive mechanisms；The rotation of 4- azimuths is driven
Motivation structure；5- regards daily motion control system；5.1- position of sun detection sensors；5.2- support attitude detecting sensors；5.3-
Photovoltaic module generation current sensor；5.4- central controllers；5.5- position of sun calculators；5.6- azimuth motors drive
Device；5.7- elevation angle motor drivers；5.8- supports tracking attitude data storehouse；5.9- self study inference machines.
Fig. 2 is that photovoltaic tracking support regards daily motion control method flow chart.
Specific embodiment：
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
As shown in figure 1, the photovoltaic tracking support of the present embodiment regards daily motion control system, including：
Support post 1 is supported and fixed on ground as whole support, and top connects with azimuth rotary drive mechanism 4
Connect, and allow azimuth rotary drive mechanism 4 to horizontally rotate；The fixed angle of pitch rotation above of azimuth rotary drive mechanism 4
Turn drive mechanism 3, and allow the angle of pitch rotary drive mechanism 3 to carry out elevating movement；Angle of pitch rotary drive mechanism 3 is by revolution
Hinge is attached with photovoltaic module support frame 2, drives photovoltaic module support frame 2 and photovoltaic electrification component above to realize pitching
Motion；Position of sun detection sensor 5.1 be fixed on photovoltaic module support frame 2 towards sunny side, the position of sun letter that it is detected
Number input regarding daily motion control system 5 central controller 5.4 in；Support attitude detecting sensor 5.2 is fixed on photovoltaic module
The back of support frame 2, the support attitude signal input that it is detected is in the central controller 5.4 of daily motion control system 5.
It is described regarding daily motion control system 5, except position of sun detection sensor 5.1 and support attitude detecting sensor
Outside 5.2, also including photovoltaic module generation current sensor 5.3, position of sun calculator 5.5, azimuth motor driver 5.6,
Elevation angle motor driver 5.7, support tracking attitude data storehouse 5.8, self study inference machine 5.9, and all with central controller
5.4 are connected.
As shown in Fig. 2 described photovoltaic tracking support is comprised the following steps depending on the operation method of daily motion control system：
(1) determined whether to be tracked according to current time：If current time after the sunrise time on the same day and
Before sunset time, start and regard daily motion control program；Do not start otherwise.Sunrise and sunset time are by position of sun calculator
5.5 obtain, in belonging to ripe prior art.
(2) central controller 5.4 revolves by regarding daily motion control program command (CP command) angle of pitch rotary drive mechanism 3 and azimuth
Turn the setting in motion of drive mechanism 4, photovoltaic tracking support 2 is gone to target location.Target location is exactly to track the start time sun
The position of light vertical incidence.
(3) judge weather conditions, select tracing mode.After tracking support 2 goes to target location, central controller 5.4 is every
An output signal for position of sun detection sensor 5.1 is gathered every setting time.If signal intensity is more than preset value, adopt
Use light-operated tracing mode；If signal intensity is less than preset value, using non-light-operated tracing mode.
(4) under non-light-operated tracing mode, self-inspection is carried out to support attitude detecting sensor 5.2.If sensor feedback
Data are normal, then into attitude detection closed loop feedback tracing mode；Otherwise, into time control pattern.
(5) under optical mode control, attitude detection closed loop feedback tracing mode, time control pattern, photovoltaic module generation current is passed
Sensor 5.3 is detected to the generation current of photovoltaic module, and current detection value is associated with support attitude and timestamp,
Start self-studying mode.
(6) as the maximum current that long-play is produced constantly adds up with the support attitude data for associating, and by branch
Frame tracking attitude self study inference machine 5.9 carries out data mining, finds optimal tracking array, is stored in knowledge base 5.10.With
Knowledge base constantly improve, when the data cover whole year operation cycle of optimal tracking array, starts historical data tracing mode.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (2)
1. a kind of photovoltaic tracking support regards daily motion control system, it is characterised in that：Described photovoltaic tracking support includes support
Column, photovoltaic module support frame, angle of pitch rotary drive mechanism, azimuth rotary drive mechanism；Described angle of pitch rotation is driven
Motivation structure and azimuth rotary drive mechanism are connected by respective power line and holding wire with depending on daily motion control system respectively；
Described includes that position of sun detection sensor, support attitude detecting sensor, photovoltaic module generate electricity regarding daily motion control system
Current sensor, position of sun calculator, central controller, motor driver, support tracking attitude data storehouse and self study are pushed away
Reason machine.
2. a kind of photovoltaic tracking support regards daily motion control method, it is characterised in that：Comprise the following steps, (1) according to it is current when
Between determine whether to be tracked：If after the sunrise time on the same day and before sunset time, startup is regarded current time
Daily motion control program；Do not start otherwise；(2) central controller is by regarding daily motion control program command (CP command) angle of pitch rotation driving
Mechanism and azimuth rotary drive mechanism setting in motion, make photovoltaic tracking support go to original position；(3) weather conditions are judged,
Selection tracing mode；After tracking support goes to original position, central controller gathers a position of sun inspection every setting time
Survey the output signal of sensor；If signal intensity is more than preset value, using light-operated tracing mode；If signal intensity is less than
Preset value, then using non-light-operated tracing mode；(4) under non-light-operated tracing mode, support attitude detecting sensor is carried out certainly
Inspection；If sensor feedback data are normal, into attitude detection closed loop feedback tracing mode；Otherwise, into time control pattern；
(5) under optical mode control, attitude detection closed loop feedback tracing mode, time control pattern, the generation current to photovoltaic module is examined
Survey, and current detection value is associated with support attitude and timestamp, start self-studying mode；(6) with long-play
The maximum current of generation constantly adds up with the support attitude data for associating, and is carried out by support tracking attitude self study inference machine
Data mining, finds optimal tracking array, is stored in knowledge base；With knowledge base constantly improve, when the number of optimal tracking array
During according to covering the whole year operation cycle, start historical data tracing mode.
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| CN201710135445.4A CN106843288A (en) | 2017-03-01 | 2017-03-01 | Photovoltaic tracking support regards daily motion control system and method |
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| CN107544562A (en) * | 2017-10-31 | 2018-01-05 | 华电郑州机械设计研究院有限公司 | A kind of oblique single shaft photovoltaic automatic tracking control apparatus and method based on PLC |
| CN113867421A (en) * | 2021-11-19 | 2021-12-31 | 晟维新能源科技发展(天津)有限公司 | Intelligent tracking control system applied to photovoltaic tracking support |
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| CN113867421A (en) * | 2021-11-19 | 2021-12-31 | 晟维新能源科技发展(天津)有限公司 | Intelligent tracking control system applied to photovoltaic tracking support |
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Address after: 213000 No. 88 Lao Ming Road, Hing town, Changzhou, Jiangsu, Liyang Applicant after: Jiangsu Guodian new energy equipment Co., Ltd. Address before: 213000 No. 88 Lao Ming Road, Hing town, Changzhou, Jiangsu, Liyang Applicant before: Jiangsu Guodian iron tower Co., Ltd. |
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Application publication date: 20170613 |