CN109194285B - Photovoltaic power generation system - Google Patents
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- CN109194285B CN109194285B CN201811178481.XA CN201811178481A CN109194285B CN 109194285 B CN109194285 B CN 109194285B CN 201811178481 A CN201811178481 A CN 201811178481A CN 109194285 B CN109194285 B CN 109194285B
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- 238000010248 power generation Methods 0.000 title claims abstract description 170
- 239000011159 matrix material Substances 0.000 claims abstract description 50
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 238000013480 data collection Methods 0.000 claims abstract description 26
- 238000007405 data analysis Methods 0.000 claims abstract description 17
- 238000004088 simulation Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 238000012163 sequencing technique Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 239000013307 optical fiber Substances 0.000 abstract description 3
- 239000004065 semiconductor Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 125000004429 atom Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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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
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
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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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- 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
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Abstract
The invention discloses a photovoltaic power generation system which comprises a controller, a data analysis unit, a data temporary storage module, a display module, a PLC (programmable logic controller) control module, a photovoltaic panel matrix, a data collection unit and a simulation power generation end, wherein the data analysis unit is used for analyzing data of a photovoltaic panel matrix; the photovoltaic panel matrix is a power generation matrix formed by a plurality of photovoltaic panels, and the data collection unit is used for collecting the collective power generation amount information of the photovoltaic panel matrix; the data collection unit is used for transmitting the collective power generation information to the controller, and the controller starts the analog power generation end when detecting that the collective power generation information is larger than a preset value; the photovoltaic power generation system comprises a photovoltaic panel matrix, a data collection unit, an auxiliary controller and a controller, wherein the photovoltaic panel matrix is used for carrying out photovoltaic power generation in real time, when the data collection unit detects that the power generation efficiency exceeds a preset value, a detection signal is sent out, and the detection signal is transmitted to the auxiliary controller through the controller; the synchronous small-range power generation operation is carried out by means of the small-area photovoltaic panel of the simulation power generation end, and the situation of power resource waste caused by insufficient power generation capacity or insufficient optical fiber is avoided.
Description
Technical Field
The invention belongs to the field of power generation systems, relates to a photovoltaic power generation technology, and particularly relates to a photovoltaic power generation system.
Background
Photovoltaic power generation is a technology of directly converting light energy into electric energy by using the photovoltaic effect of a semiconductor interface. The solar energy power generation system mainly comprises a solar panel (assembly), a controller and an inverter, and the main components are electronic components. 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.
The main principle of photovoltaic power generation is the photoelectric effect of semiconductors. When photons irradiate on the metal, the energy of the photons can be completely absorbed by certain electrons in the metal, and the energy absorbed by the electrons is large enough to overcome the internal attraction of the metal to work, so that the photons leave the surface of the metal and escape to form photoelectrons. The silicon atom has 4 outer electrons, and if the pure silicon is doped with 5 outer electron atoms such as phosphorus atom, the silicon atom becomes an N-type semiconductor; if atoms with 3 outer electrons, such as boron atoms, are doped into pure silicon, a P-type semiconductor is formed. When the P-type and the N-type are combined together, a potential difference is formed at the contact surface, and the solar cell is formed. When sunlight irradiates the P-N junction, holes move from the P pole region to the N pole region, and electrons move from the N pole region to the P pole region to form current.
The photoelectric effect is a phenomenon that a potential difference is generated between different parts of an uneven semiconductor or a semiconductor and a metal by light irradiation. Firstly, converting photons (light waves) into electrons, and converting light energy into electric energy; second, a voltage forming process.
However, the photovoltaic power generation needs to be borrowed into a photovoltaic panel power generation matrix, but the photovoltaic power generation matrix often occupies a large area and is greatly influenced by weather and geographical positions; the angle between the sunlight and the direct sunlight can greatly influence the power generation efficiency; therefore, when the photovoltaic power generation needs to be arranged in a certain place, the movement rule of the sun in one day is often measured, and then the orientation change of the photovoltaic panel is set in advance; this process is undoubtedly time consuming and also causes a lot of repetitive labour; in order to solve the above-mentioned drawbacks, a solution is now provided.
Disclosure of Invention
The invention aims to provide a photovoltaic power generation system.
The technical problem to be solved by the invention is as follows:
(1) the power generation efficiency of each angle is detected in any time period, so that the energy waste caused by detection in improper time is avoided;
(2) how to establish the optimal power generation position for each time period in the day, where the orientation of the photovoltaic panel matrix should be;
(3) at what time period the orientation of the photovoltaic panel is adjusted reasonably.
The purpose of the invention can be realized by the following technical scheme:
a photovoltaic power generation system comprises a controller, a data analysis unit, a data temporary storage module, a display module, a PLC control module, a photovoltaic panel matrix, a data collection unit and a simulation power generation end;
the photovoltaic panel matrix is a power generation matrix formed by a plurality of photovoltaic panels, and the data collection unit is used for collecting the collective power generation information of the photovoltaic panel matrix; the data collection unit is used for transmitting the collective power generation information to the controller, and the controller starts the analog power generation end when detecting that the collective power generation information is larger than a preset value;
the simulation power generation end adopts a small photovoltaic panel which is arranged at the same position as the photovoltaic panel matrix for simulating the power generation process; the simulation power generation end comprises a photovoltaic panel driving module, a photovoltaic panel, an auxiliary controller, an angle acquisition unit, a power generation statistical unit and a data processing unit;
the photovoltaic panel driving module is used for driving and controlling the orientation position of a photovoltaic panel according to a driving rule, the photovoltaic panel is used for receiving sunlight and converting the sunlight into electric energy, and the power generation statistical unit is used for detecting and counting the power generation amount generated by the photovoltaic panel;
when the power generation statistical unit detects that the photovoltaic panel starts to generate power and the power generation amount is larger than a preset value, transmitting a monitoring signal to the photovoltaic panel driving module; the photovoltaic panel driving module automatically enters a detection mode according to a driving rule when receiving the monitoring signal; the driving rule is embodied by the following steps:
the method comprises the following steps: starting to automatically enter a detection mode;
step two: photovoltaic board drive module can drive photovoltaic board rotation operation under the detection state, and the concrete expression does:
s1: marking an included angle formed by the photovoltaic panel and the placing plane as Jp, and adjusting the vertical position of the photovoltaic panel and the placing plane by using a photovoltaic panel driving module, wherein the Jp is 90 degrees;
s2: keeping the current angle for a preset time T1, and counting the current generated energy F1 by using a power generation counting unit; obtaining the orientation angle J1 of the photovoltaic panel at the moment;
s3: marking the rotation angle of the photovoltaic panel as Jx, wherein the Jx is 0; then, rotating the photovoltaic panel by a preset angle alpha clockwise by taking a line which is vertical to the horizontal plane and is positioned at the center of the photovoltaic panel as a central line, and endowing Jx + alpha with Jx again at the moment; keeping the preset time T1 after rotating to the preset position, and counting the generated energy F2 of the time period by using a power generation counting unit; alpha can be divided by 360, and 10 is less than or equal to 360/alpha is less than or equal to 12;
s4: repeating step S2 after maintaining preset time T1 until Jx is 360 °; acquiring a plurality of groups of generated energy data;
s5: redefining Jp-beta as Jp, wherein beta is a preset angle and can be divided by 180, and 9/beta is more than or equal to 180 and less than or equal to 11; readjusting the included angle between the photovoltaic panel and the placing plane according to Jp, and keeping the preset time T1; acquiring current generating capacity by using a power generation statistical unit; repeating the steps S3-S5 to obtain a plurality of groups of power generation data;
s6: repeating step S6 until Jp- β ═ 90 °; acquiring a generated energy information group of which the photovoltaic panel and a placing plane present a plurality of angles, and marking the generated energy information group as Fi (i is 1.. n); acquiring a photovoltaic panel set angle information group Pi, i is 1.. n corresponding to the generating capacity information group Fi, wherein Pi comprises values of Jx and Jp; pi and Fi are in one-to-one correspondence; the set angle information group comprises a plurality of set angle information, and the set angle information is corresponding Jx and Jp;
step three: the power generation statistical unit is used for transmitting the power generation amount information group Fi to the data processing unit; automatically acquiring a corresponding set angle information group Pi from the photovoltaic panel driving module by using an angle acquisition unit;
the angle acquisition unit is used for transmitting a set angle information group Pi to the data processing unit, the data processing unit receives a power generation amount information group Fi transmitted by the power generation statistical unit, and the data processing unit is used for carrying out the following processing on the power generation amount information group Fi and the corresponding set angle information group Pi, and the specific processing steps are as follows:
the method comprises the following steps: sequencing the generating capacity information groups Fi in a descending order;
step two: acquiring first-ordered generating capacity information and corresponding set angle information;
step three: marking the set angle information corresponding to the sorted first power generation amount information as optimal angle information;
the data processing unit is used for transmitting the optimal angle information to an auxiliary controller, the auxiliary controller is used for transmitting the optimal angle information to the controller, the controller is used for transmitting the optimal angle information to the PLC control module, and the PLC control module is used for driving and controlling the photovoltaic panel matrix to be adjusted to the corresponding optimal angle information according to the optimal angle information;
the data collection unit is used for collecting real-time collective power generation amount information of the photovoltaic panel matrix, and the data collection unit is used for transmitting the collective power generation amount information to the data temporary storage module through the controller for temporary storage; the data analysis unit is used for automatically acquiring the collective power generation amount information from the data temporary storage module, and the data analysis unit is used for performing the following processing on the collective power generation amount information by combining the time information, and the specific processing steps are as follows:
the method comprises the following steps: marking time information as Wi, i-1.. n; wi is real-time information when the photovoltaic panel matrix starts to generate electricity; forming a plurality of pieces of collective power generation information generated by the photovoltaic panel matrix along with the time into a collective power generation information group Hi, wherein i is 1.. n; hi corresponds to Wi one by one;
step two: using formulas
N ═ x.. n; x is a preset value; calculating to obtain a power generation efficiency information group Vi, i ═ x.. n;
step three: judging Vi;
s1: when Vi is larger than or equal to a preset value Vy, the system continuously generates power;
s2: when Vi is smaller than a preset value Vy, the current collective power generation information is lower than a certain efficiency, which indicates that the direction of the strongest sunlight is changed; the system generates a converted signal.
Further, the data analysis unit is used for transmitting the conversion signal to the controller, the controller receives the conversion signal transmitted by the data analysis unit and transmits the conversion signal to the auxiliary controller, the auxiliary controller transmits a detection signal to the photovoltaic panel driving module when receiving the conversion signal transmitted by the controller, the photovoltaic panel driving module automatically enters a detection mode when receiving the detection signal transmitted by the auxiliary controller, and the photovoltaic panel driving module automatically performs detection according to the driving rule when receiving the detection signal.
Further, the controller is used for transmitting the collective power generation amount information to the display module to be displayed in real time.
Further, the controller is also used for transmitting the optimal angle information to the display module for real-time display.
Further, the controller is also used for transmitting the generating efficiency information group Vi to the display module for real-time display.
The invention has the beneficial effects that:
(1) the photovoltaic power generation system comprises a photovoltaic panel matrix, a data collection unit, an auxiliary controller and a controller, wherein the photovoltaic panel matrix is used for carrying out photovoltaic power generation in real time, when the data collection unit detects that the power generation efficiency exceeds a preset value, a detection signal is sent out, and the detection signal is transmitted to the auxiliary controller through the controller; synchronous small-range power generation operation is performed by means of a small-area photovoltaic panel of the simulation power generation end, so that the situation of power resource waste caused by insufficient power generation capacity or insufficient optical fiber is avoided;
(2) meanwhile, the photovoltaic panel driving module drives the photovoltaic panel to rotate according to an appointed rule and stays for a preset time, the generated energy of the photovoltaic panel at each angle in the time period is collected, the optimal angle is selected according to the generated energy and the related rule, then the optimal angle is transmitted to the controller through the auxiliary controller, the optimal angle is transmitted to the PLC control module through the controller, and the PLC control module is used for driving the matrix of the photovoltaic panel to face the angle completely, so that power generation is carried out; the angle can be automatically adjusted through the process;
(3) the method comprises the steps that the controller and the data collecting unit are used for counting the generating efficiency of the photovoltaic panel matrix, when the generating efficiency is lower than a preset value, the situation that the generating efficiency is reduced under the current condition is judged, and the optimal angle needs to be re-established; then, detecting by means of the simulation power generation end, and re-acquiring the current optimal power generation angle; after the optimal power generation angle is obtained, the position orientation of the photovoltaic panel matrix is readjusted through the PLC control module; the invention is simple, effective and easy to use.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a block diagram of the system of the present invention.
Detailed Description
As shown in fig. 1, a photovoltaic power generation system includes a controller, a data analysis unit, a data temporary storage module, a display module, a PLC control module, a photovoltaic panel matrix, a data collection unit, and an analog power generation end;
the photovoltaic panel matrix is a power generation matrix formed by a plurality of photovoltaic panels, and the data collection unit is used for collecting the collective power generation information of the photovoltaic panel matrix; the data collection unit is used for transmitting the collective power generation information to the controller, and the controller starts the analog power generation end when detecting that the collective power generation information is larger than a preset value; the collective power generation information is the sum of the collective power generation information in a preset time and is also the power generation efficiency; when the power generation efficiency reaches a certain degree, the illumination at the moment meets the power generation requirement, and the waste caused by starting the simulation power generation end for detection under the condition of insufficient illumination is avoided;
the simulation power generation end adopts a small-area photovoltaic panel which is arranged at the same position as the photovoltaic panel matrix for simulating the power generation process; the photovoltaic panel with small area has a preset size, and mainly occupies small floor area and is convenient to mount and dismount; the simulation power generation end comprises a photovoltaic panel driving module, a photovoltaic panel, an auxiliary controller, an angle acquisition unit, a power generation statistical unit and a data processing unit;
the photovoltaic panel driving module is used for driving and controlling the orientation position of a photovoltaic panel according to a driving rule, the photovoltaic panel is used for receiving sunlight and converting the sunlight into electric energy, and the power generation statistical unit is used for detecting and counting the power generation amount generated by the photovoltaic panel;
when the power generation statistical unit detects that the photovoltaic panel starts to generate power and the power generation amount is larger than a preset value, transmitting a monitoring signal to the photovoltaic panel driving module; the photovoltaic panel driving module automatically enters a detection mode according to a driving rule when receiving the monitoring signal; the driving rule is embodied by the following steps:
the method comprises the following steps: starting to automatically enter a detection mode;
step two: photovoltaic board drive module can drive photovoltaic board rotation operation under the detection state, and the concrete expression does:
s1: marking an included angle formed by the photovoltaic panel and the placing plane as Jp, and adjusting the vertical position of the photovoltaic panel and the placing plane by using a photovoltaic panel driving module, wherein the Jp is 90 degrees;
s2: keeping the current angle for a preset time T1, and counting the current generated energy F1 by using a power generation counting unit; obtaining the orientation angle J1 of the photovoltaic panel at the moment; t1<5 seconds;
s3: marking the rotation angle of the photovoltaic panel as Jx, wherein the Jx is 0; then, rotating the photovoltaic panel by a preset angle alpha clockwise by taking a line which is vertical to the horizontal plane and is positioned at the center of the photovoltaic panel as a central line, and endowing Jx + alpha with Jx again at the moment; keeping the preset time T1 after rotating to the preset position, and counting the generated energy F2 of the time period by using a power generation counting unit; alpha can be divided by 360, and 10 is less than or equal to 360/alpha is less than or equal to 12;
s4: repeating step S2 after maintaining preset time T1 until Jx is 360 °; acquiring a plurality of groups of generated energy data;
s5: redefining Jp-beta as Jp, wherein beta is a preset angle and can be divided by 180, and 9/beta is more than or equal to 180 and less than or equal to 11; readjusting the included angle between the photovoltaic panel and the placing plane according to Jp, and keeping the preset time T1; acquiring current generating capacity by using a power generation statistical unit; repeating the steps S3-S5 to obtain a plurality of groups of power generation data;
s6: repeating step S6 until Jp- β ═ 90 °; acquiring a generated energy information group of which the photovoltaic panel and a placing plane present a plurality of angles, and marking the generated energy information group as Fi (i is 1.. n); acquiring a photovoltaic panel set angle information group Pi, i is 1.. n corresponding to the generating capacity information group Fi, wherein Pi comprises values of Jx and Jp; pi and Fi are in one-to-one correspondence; the set angle information group comprises a plurality of set angle information, and the set angle information is corresponding Jx and Jp;
step three: the power generation statistical unit is used for transmitting the power generation amount information group Fi to the data processing unit; automatically acquiring a corresponding set angle information group Pi from the photovoltaic panel driving module by using an angle acquisition unit;
the angle acquisition unit is used for transmitting a set angle information group Pi to the data processing unit, the data processing unit receives a power generation amount information group Fi transmitted by the power generation statistical unit, and the data processing unit is used for carrying out the following processing on the power generation amount information group Fi and the corresponding set angle information group Pi, and the specific processing steps are as follows:
the method comprises the following steps: sequencing the generating capacity information groups Fi in a descending order;
step two: acquiring first-ordered generating capacity information and corresponding set angle information;
step three: marking the set angle information corresponding to the sorted first power generation amount information as optimal angle information;
the data processing unit is used for transmitting the optimal angle information to an auxiliary controller, the auxiliary controller is used for transmitting the optimal angle information to the controller, the controller is used for transmitting the optimal angle information to the PLC control module, and the PLC control module is used for driving and controlling the photovoltaic panel matrix to be adjusted to the corresponding optimal angle information according to the optimal angle information;
the data collection unit is used for collecting real-time collective power generation amount information of the photovoltaic panel matrix, and the data collection unit is used for transmitting the collective power generation amount information to the data temporary storage module through the controller for temporary storage; the data analysis unit is used for automatically acquiring the collective power generation amount information from the data temporary storage module, and the data analysis unit is used for performing the following processing on the collective power generation amount information by combining the time information, and the specific processing steps are as follows:
the method comprises the following steps: marking time information as Wi, i-1.. n; wi is real-time information when the photovoltaic panel matrix starts to generate electricity; forming a plurality of pieces of collective power generation information generated by the photovoltaic panel matrix along with the time into a collective power generation information group Hi, wherein i is 1.. n; hi corresponds to Wi one by one;
step two: using formulas
N ═ x.. n; x is a preset value; calculating to obtain a power generation efficiency information group Vi, i ═ x.. n;
step three: judging Vi;
s1: when Vi is larger than or equal to a preset value Vy, the system continuously generates power;
s2: when Vi is smaller than a preset value Vy, the current collective power generation information is lower than a certain efficiency, which indicates that the direction of the strongest sunlight is changed; the system generates a conversion signal;
the data analysis unit is used for transmitting a conversion signal to the controller, the controller receives the conversion signal transmitted by the data analysis unit and transmits the conversion signal to the auxiliary controller, the auxiliary controller transmits a detection signal to the photovoltaic panel driving module when receiving the conversion signal transmitted by the controller, the photovoltaic panel driving module automatically enters a detection mode when receiving the detection signal transmitted by the auxiliary controller, and the photovoltaic panel driving module automatically carries out detection according to the driving rule when receiving the detection signal;
the controller is used for transmitting the collective power generation information to the display module for real-time display;
the controller is also used for transmitting the optimal angle information to the display module for real-time display;
and the controller is also used for transmitting the generating efficiency information group Vi to the display module for real-time display.
A photovoltaic power generation system firstly carries out photovoltaic power generation in real time through a photovoltaic panel matrix when in work, and sends a detection signal when a data collection unit detects that the power generation efficiency exceeds a preset value, and the detection signal is transmitted to an auxiliary controller through a controller; the method comprises the steps that synchronous small-range power generation operation is carried out by means of a small-area photovoltaic panel of a simulation power generation end, when the photovoltaic panel enters a detection state, the photovoltaic panel is driven by a photovoltaic panel driving module to rotate according to an appointed rule and stay for a preset time, the power generation amount of the photovoltaic panel at each angle in the time period is collected, the optimal angle is selected according to the power generation amount and a relevant rule, then the optimal angle is transmitted to a controller through an auxiliary controller, the optimal angle is transmitted to a PLC (programmable logic controller) control module through the controller, and a matrix of the photovoltaic panel is driven to face the angle by means of the PLC control module, so that power generation; the angle can be automatically adjusted through the process; then, the controller and the data collection unit are used for counting the power generation efficiency of the photovoltaic panel matrix, when the power generation efficiency is lower than a preset value, the simulation power generation end is used for detecting again, and the current optimal power generation angle is obtained again;
the invention has the following beneficial effects:
(1) the photovoltaic power generation system comprises a photovoltaic panel matrix, a data collection unit, an auxiliary controller and a controller, wherein the photovoltaic panel matrix is used for carrying out photovoltaic power generation in real time, when the data collection unit detects that the power generation efficiency exceeds a preset value, a detection signal is sent out, and the detection signal is transmitted to the auxiliary controller through the controller; synchronous small-range power generation operation is performed by means of a small-area photovoltaic panel of the simulation power generation end, so that the situation of power resource waste caused by insufficient power generation capacity or insufficient optical fiber is avoided;
(2) meanwhile, the photovoltaic panel driving module drives the photovoltaic panel to rotate according to an appointed rule and stays for a preset time, the generated energy of the photovoltaic panel at each angle in the time period is collected, the optimal angle is selected according to the generated energy and the related rule, then the optimal angle is transmitted to the controller through the auxiliary controller, the optimal angle is transmitted to the PLC control module through the controller, and the PLC control module is used for driving the matrix of the photovoltaic panel to face the angle completely, so that power generation is carried out; the angle can be automatically adjusted through the process; (ii) a
(3) The method comprises the steps that the controller and the data collecting unit are used for counting the generating efficiency of the photovoltaic panel matrix, when the generating efficiency is lower than a preset value, the situation that the generating efficiency is reduced under the current condition is judged, and the optimal angle needs to be re-established; then, detecting by means of the simulation power generation end, and re-acquiring the current optimal power generation angle; after the optimal power generation angle is obtained, the position orientation of the photovoltaic panel matrix is readjusted through the PLC control module; the invention is simple, effective and easy to use.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (1)
1. A photovoltaic power generation system is characterized by comprising a controller, a data analysis unit, a data temporary storage module, a display module, a PLC control module, a photovoltaic panel matrix, a data collection unit and a simulation power generation end;
the photovoltaic panel matrix is a power generation matrix formed by a plurality of photovoltaic panels, and the data collection unit is used for collecting the collective power generation information of the photovoltaic panel matrix; the data collection unit is used for transmitting the collective power generation information to the controller, and the controller starts the analog power generation end when detecting that the collective power generation information is larger than a preset value;
the simulation power generation end adopts a small photovoltaic panel which is arranged at the same position as the photovoltaic panel matrix for simulating the power generation process; the simulation power generation end comprises a photovoltaic panel driving module, a photovoltaic panel, an auxiliary controller, an angle acquisition unit, a power generation statistical unit and a data processing unit;
the photovoltaic panel driving module is used for driving and controlling the orientation position of a photovoltaic panel according to a driving rule, the photovoltaic panel is used for receiving sunlight and converting the sunlight into electric energy, and the power generation statistical unit is used for detecting and counting the power generation amount generated by the photovoltaic panel;
when the power generation statistical unit detects that the photovoltaic panel starts to generate power and the power generation amount is larger than a preset value, transmitting a monitoring signal to the photovoltaic panel driving module; the photovoltaic panel driving module automatically enters a detection mode according to a driving rule when receiving the monitoring signal; the driving rule is embodied by the following steps:
the method comprises the following steps: starting to automatically enter a detection mode;
step two: photovoltaic board drive module can drive photovoltaic board rotation operation under the detection state, and the concrete expression does:
s1: marking an included angle formed by the photovoltaic panel and the placing plane as Jp, and adjusting the vertical position of the photovoltaic panel and the placing plane by using a photovoltaic panel driving module, wherein the Jp is 90 degrees;
s2: keeping the current angle for a preset time T1, and counting the current generated energy F1 by using a power generation counting unit; obtaining the orientation angle J1 of the photovoltaic panel at the moment;
s3: marking the rotation angle of the photovoltaic panel as Jx, wherein the Jx is 0; then, rotating the photovoltaic panel by a preset angle alpha clockwise by taking a line which is vertical to the horizontal plane and is positioned at the center of the photovoltaic panel as a central line, and endowing Jx + alpha with Jx again at the moment; keeping the preset time T1 after rotating to the preset position, and counting the generated energy F2 of the time period by using a power generation counting unit; alpha can be divided by 360, and 10 is less than or equal to 360/alpha is less than or equal to 12;
s4: repeating step S2 after maintaining preset time T1 until Jx is 360 °; acquiring a plurality of groups of generated energy data;
s5: redefining Jp-beta as Jp, wherein beta is a preset angle and can be divided by 180, and 9/beta is more than or equal to 180 and less than or equal to 11; readjusting the included angle between the photovoltaic panel and the placing plane according to Jp, and keeping the preset time T1; acquiring current generating capacity by using a power generation statistical unit; repeating the steps S3-S5 to obtain a plurality of groups of power generation data;
s6: repeating step S6 until Jp- β ═ 90 °; acquiring a generated energy information group of which the photovoltaic panel and a placing plane present a plurality of angles, and marking the generated energy information group as Fi (i is 1.. n); acquiring a photovoltaic panel set angle information group Pi, i is 1.. n corresponding to the generating capacity information group Fi, wherein Pi comprises values of Jx and Jp; pi and Fi are in one-to-one correspondence; the set angle information group comprises a plurality of set angle information, and the set angle information is corresponding Jx and Jp;
step three: the power generation statistical unit is used for transmitting the power generation amount information group Fi to the data processing unit; automatically acquiring a corresponding set angle information group Pi from the photovoltaic panel driving module by using an angle acquisition unit;
the angle acquisition unit is used for transmitting a set angle information group Pi to the data processing unit, the data processing unit receives a power generation amount information group Fi transmitted by the power generation statistical unit, and the data processing unit is used for carrying out the following processing on the power generation amount information group Fi and the corresponding set angle information group Pi, and the specific processing steps are as follows:
the method comprises the following steps: sequencing the generating capacity information groups Fi in a descending order;
step two: acquiring first-ordered generating capacity information and corresponding set angle information;
step three: marking the set angle information corresponding to the sorted first power generation amount information as optimal angle information;
the data processing unit is used for transmitting the optimal angle information to an auxiliary controller, the auxiliary controller is used for transmitting the optimal angle information to the controller, the controller is used for transmitting the optimal angle information to the PLC control module, and the PLC control module is used for driving and controlling the photovoltaic panel matrix to be adjusted to the corresponding optimal angle information according to the optimal angle information;
the data collection unit is used for collecting real-time collective power generation amount information of the photovoltaic panel matrix, and the data collection unit is used for transmitting the collective power generation amount information to the data temporary storage module through the controller for temporary storage; the data analysis unit is used for automatically acquiring the collective power generation amount information from the data temporary storage module, and the data analysis unit is used for performing the following processing on the collective power generation amount information by combining the time information, and the specific processing steps are as follows:
the method comprises the following steps: marking time information as Wi, i-1.. n; wi is real-time information when the photovoltaic panel matrix starts to generate electricity; forming a plurality of pieces of collective power generation information generated by the photovoltaic panel matrix along with the time into a collective power generation information group Hi, wherein i is 1.. n; hi corresponds to Wi one by one;
step two: using formulas
x is a preset value; calculating to obtain a power generation efficiency information group Vi, i ═ x.. n;
step three: judging Vi;
s1: when Vi is larger than or equal to a preset value Vy, the system continuously generates power;
s2: when Vi is smaller than a preset value Vy, the current collective power generation information is lower than a certain efficiency, which indicates that the direction of the strongest sunlight is changed; the system generates a conversion signal;
the data analysis unit is used for transmitting a conversion signal to the controller, the controller receives the conversion signal transmitted by the data analysis unit and transmits the conversion signal to the auxiliary controller, the auxiliary controller transmits a detection signal to the photovoltaic panel driving module when receiving the conversion signal transmitted by the controller, the photovoltaic panel driving module automatically enters a detection mode when receiving the detection signal transmitted by the auxiliary controller, and the photovoltaic panel driving module automatically carries out detection according to the driving rule when receiving the detection signal;
the controller is used for transmitting the collective power generation information to the display module for real-time display;
the controller is also used for transmitting the optimal angle information to the display module for real-time display;
and the controller is also used for transmitting the generating efficiency information group Vi to the display module for real-time display.
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