CN102566600B - The automatic correction system of motion tracking solar photovoltaic generating system and its implementation - Google Patents
The automatic correction system of motion tracking solar photovoltaic generating system and its implementation Download PDFInfo
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- CN102566600B CN102566600B CN201210031559.1A CN201210031559A CN102566600B CN 102566600 B CN102566600 B CN 102566600B CN 201210031559 A CN201210031559 A CN 201210031559A CN 102566600 B CN102566600 B CN 102566600B
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Abstract
The invention discloses automatic correction system and its implementation of motion tracking solar photovoltaic generating system, this system comprises active tracing unit, and is equipped with at described active tracing cell surface and the energy acceptance amount be connected with active tracing cell signal assesses feedback unit.The automatic correction system of motion tracking solar photovoltaic generating system of the present invention and its implementation, can overcome energy conversion efficiency in prior art low with poor practicability etc. defect, to realize the advantage that energy conversion efficiency is high and practicality is good.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation, particularly, relate to automatic correction system and its implementation of motion tracking solar photovoltaic generating system.
Background technology
At present, solar photovoltaic tracking formula generation technology, comprise 2 kinds of generation modes: one is active tracing, position angle and the angle of pitch of the sun of the point under current point in time and latitude coordinates is namely calculated by astronomical algorithm, then by the angle and direction of mechanical hook-up adjustment solar panels, allow the ray of the sun is almost completely vertical to be penetrated on solar panels, to obtain maximum Energy transmission; Another is passive tracking, compares transmitted intensity to find the maximum point of an energy harvesting by light sensor, and when position of sun moves change time, light sensor experiences transmitted intensity change, and then makes passive adjustment.
But above-mentioned generation mode, when weather changes time, sunshine is hidden by clouds, and part is covered, or time certain refraction occurs light therethrough cloud layer, only by geomagnetic sensor and astronomical algorithm, do not adjust to the actual effect of ceiling capacity acceptance point.
Realizing in process of the present invention, it is low with defects such as poor practicability that inventor finds at least to exist in prior art energy conversion efficiency.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose the automatic correction system of motion tracking solar photovoltaic generating system, to realize the advantage that energy conversion efficiency is high and practicality is good.
For achieving the above object, the technical solution used in the present invention is: the automatic correction system of motion tracking solar photovoltaic generating system, comprise active tracing unit, and to be equipped with at described active tracing cell surface and the energy acceptance amount be connected with active tracing cell signal assesses feedback unit.
Further, described active tracing unit comprises geomagnetic sensor, master controller and the mechanical adjustment module that signal successively connects, and described mechanical adjustment module and energy acceptance amount are assessed feedback unit signal and be connected.
Further, described energy acceptance amount assessment feedback unit comprises light sensor and the power computation module of signal connection successively, described mechanical adjustment module is connected with light sensor signal, and described power computation module is used for exporting result of calculation by corresponding result of calculation Real-time Feedback to master controller by RS232 serial ports.
Further, the automatic correction system of above-described motion tracking solar photovoltaic generating system, also comprise the power module for powering for each consumer, the consumer that described power module is assessed in feedback unit with active tracing unit and energy acceptance amount is respectively electrically connected.
Further, described light sensor at least comprises the model of ROHM company is the sensor of BH1603FVC-TR.
Further, described power computation module at least comprises the model of Cirrus Logic company is the computing module of CS5460.
Meanwhile, another technical scheme that the present invention adopts is: according to the implementation method of the automatic correction system of above-described motion tracking solar photovoltaic generating system, comprising:
Master controller is Magnetic Sensor in combination, the position angle of photovoltaic battery panel and the theoretical value of the angle of pitch is calculated according to astronomical algorithm, by mechanical adjustment module, the current pose of photovoltaic battery panel is remedied to theoretical position angle and pitch position, starts light sensor simultaneously;
Light sensor Real-time Collection also stores current energy acceptance amount, and corresponding energy acceptance amount is fed back to master controller, and is up slowly rotated by the angle of pitch driven by motor photovoltaic battery panel of main controller controls photovoltaic battery panel;
The size variation trend of master controller real time discriminating present energy quantities received, and according to adjusting the position of photovoltaic battery panel during corresponding differentiation fructufy.
Further, the operation adjusting the position of photovoltaic battery panel when described basis differentiates fructufy accordingly comprises:
If the energy acceptance amount of current sample time is larger than the energy acceptance amount of a upper sampling instant, then continue the operation that described angle of pitch driven by motor photovoltaic battery panel up rotates;
If the energy acceptance amount of current sample time is less than the energy acceptance amount of a upper sampling instant, then the angle of pitch motor controlling photovoltaic battery panel starts to drive photovoltaic battery panel to rotate toward contrary direction.
Further, the operation adjusting the position of photovoltaic battery panel when described basis differentiates fructufy accordingly also comprises:
In the process that described angle of pitch driven by motor photovoltaic battery panel rotates toward contrary direction, if the energy acceptance amount of current sample time is larger than the energy acceptance amount of a upper sampling instant, then continue the operation that described angle of pitch driven by motor photovoltaic battery panel rotates toward contrary direction;
In the process that described angle of pitch driven by motor photovoltaic battery panel rotates toward contrary direction, if the energy acceptance amount of current sample time is less than the energy acceptance amount of a upper sampling instant, then terminate to correct, with the current location of photovoltaic battery panel for optimum point.
The automatic correction system of the motion tracking solar photovoltaic generating system of various embodiments of the present invention and its implementation, because this system comprises active tracing unit, and to be equipped with at active tracing cell surface and the energy acceptance amount be connected with active tracing cell signal assesses feedback unit; On the basis of the active tracing unit of astronomical algorithm active tracing, in conjunction with energy acceptance amount assessment feedback unit, the auxiliary energy acceptance ability optimizing photovoltaic battery panel under various different weather situation can be maximized; Thus the low defect with poor practicability of energy conversion efficiency in prior art can be overcome, to realize the advantage that energy conversion efficiency is high and practicality is good.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from instructions, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write instructions, claims and accompanying drawing and obtain.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the principle of work schematic diagram of the automatic correction system according to motion tracking solar photovoltaic generating system of the present invention;
Fig. 2 is the signal waveform schematic diagram of adjustment process in the automatic correction system according to motion tracking solar photovoltaic generating system of the present invention;
Fig. 3 is the schematic flow sheet of the implementation method of automatic correction system according to motion tracking solar photovoltaic generating system of the present invention.
By reference to the accompanying drawings, in the embodiment of the present invention, Reference numeral is as follows:
1-active tracing unit; 11-master controller; 12-mechanical adjustment module; 2-energy acceptance amount assessment feedback unit; 21-light sensor; 22-power computation module.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
system embodiment
According to the embodiment of the present invention, provide the automatic correction system of motion tracking solar photovoltaic generating system.As depicted in figs. 1 and 2, the present embodiment comprises active tracing unit 1, to be equipped with on described active tracing unit 1 surface and the energy acceptance amount be connected with active tracing unit 1 signal assesses feedback unit 2, and the power module for powering for each consumer, the consumer that power module is assessed in feedback unit 2 with active tracing unit 1 and energy acceptance amount is respectively electrically connected.
In the above-described embodiments, active tracing unit 1 comprises geomagnetic sensor, master controller 11 and the mechanical adjustment module 12 that signal successively connects, and mechanical adjustment module 12 and energy acceptance amount are assessed feedback unit 2 signal and be connected.Energy acceptance amount assessment feedback unit 2 comprises light sensor 21 and the power computation module 22 of signal connection successively, mechanical adjustment module 12 is connected with light sensor 21 signal, and power computation module 22 is for exporting result of calculation by corresponding result of calculation Real-time Feedback to master controller 11 by RS232 serial ports.
In the above-described embodiments, the model that light sensor 21 at least comprises ROHM company is the sensor of BH1603FVC-TR, and the model that power computation module 22 at least comprises Cirrus Logic company is the computing module of CS5460.
In addition, in the above-described embodiments, the microprocessor of master controller 11 can be model be Atmel AT91SAM9G20, geomagnetic sensor can be the model of Holleywell company is the sensor of HMC5843, the motor of the angle of pitch motor of photovoltaic battery panel can be model be SEW RX57 class.
The automatic correction system of the motion tracking solar photovoltaic generating system of above-described embodiment, the automatic adjustment problem of the ceiling capacity point under different weather state is followed the tracks of in order to solve astronomical algorithm active solar electrical energy generation, in the system (i.e. active tracing unit 1) of original astronomical algorithm active tracing, add light sensor 21 and automatic calibration optimized algorithm (i.e. power computation module 22), then obtain the state can adjusting to ceiling capacity reception under arbitrary weather conditions.
During concrete enforcement, light sensor 21 energy acceptance assessment electronic module can be added on original active tracing solar power system surface.After tracking starts, astronomical algorithm calculates position angle and the angle of pitch of the current sun, then by mechanical system (i.e. mechanical adjustment module 12), photovoltaic battery panel is adjusted to corresponding position angle and pitch position, then light sensor 21 is started, start to assess the real-time energy size that current solar rays produces inside light sensor 21, then whole photovoltaic battery panel starts a micro-dither process, controls angle of pitch motor and first starts to allow photovoltaic battery panel upwards slowly rotate; Calculate the size of the energy produced inside light sensor 21 real-time in whole rotation process simultaneously, if it is increasing to produce real-time power, then continue up to rotate, till real-time reception energy no longer increases.If energy is more and more less, then toward counter-rotation, then real-time reception energy starts to increase gradually, turns to till energy no longer increases always.
system embodiment
According to the embodiment of the present invention, provide the implementation method of the automatic correction system of motion tracking solar photovoltaic generating system.As shown in Figure 3, the present embodiment comprises:
Step 100: start power module, master controller is Magnetic Sensor in combination, the position angle of photovoltaic battery panel and the theoretical value of the angle of pitch is calculated according to astronomical algorithm, by mechanical adjustment module, the current pose of photovoltaic battery panel is remedied to theoretical position angle and pitch position, start light sensor simultaneously, perform step 101;
Step 101: light sensor Real-time Collection also stores current energy acceptance amount, and corresponding energy acceptance amount is fed back to master controller, performs step 102;
Step 102: the angle of pitch driven by motor photovoltaic battery panel of main controller controls photovoltaic battery panel up slowly rotates, performs step 103;
Step 103: the size variation trend of master controller real time discriminating present energy quantities received, if the energy acceptance amount of current sample time is larger than the energy acceptance amount of a upper sampling instant, then return step 102, continue the operation that described angle of pitch driven by motor photovoltaic battery panel up rotates;
If the energy acceptance amount of current sample time is less than the energy acceptance amount of a upper sampling instant, then perform step 104:
Step 104: the angle of pitch motor of main controller controls photovoltaic battery panel starts to drive photovoltaic battery panel to rotate toward contrary direction, performs step 105;
Step 105: in the process that angle of pitch driven by motor photovoltaic battery panel rotates toward contrary direction, the size variation trend of master controller real time discriminating present energy quantities received:
If the energy acceptance amount of current sample time is larger than the energy acceptance amount of a upper sampling instant, then return step 104, continue the operation that angle of pitch driven by motor photovoltaic battery panel rotates toward contrary direction;
If the energy acceptance amount of current sample time is less than the energy acceptance amount of a upper sampling instant, then perform step 106;
Step 106: terminate this and correct, with the current location of photovoltaic battery panel for optimum point.
The embodiment of above-mentioned steps 100-step 106 display, is under the technology prerequisite of active tracing, is improved by the effect of light sensor to active tracing and optimized.Because, only have the active tracing mode of astronomical algorithm to have and follow the tracks of adjustment in time in time without the advantage of hysteresis quality, but when weather changes time, sunshine is hidden by clouds, part is covered, or time certain refraction occurs light therethrough cloud layer, do not adjust to the actual effect of ceiling capacity receiving station only by geomagnetic sensor and astronomical algorithm (i.e. active tracing unit); So, need in the above-described embodiments to add light sensor backup system (i.e. energy quantities received assessment feedback unit).
In sum, the automatic correction system of the motion tracking solar photovoltaic generating system of the above embodiment of the present invention and its implementation, under single astronomical algorithm active tracing pattern can be overcome, the change of the angle of the sunshine ray caused cannot be changed and the corresponding problem making change to local weather, allow system have function that current ceiling capacity acceptance point is found in autonomous robotization identification, thus increase the efficiency that sun power transforms electric energy further.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the automatic correction system of motion tracking solar photovoltaic generating system, is characterized in that, comprises active tracing unit, and is equipped with at described active tracing cell surface and the energy acceptance amount be connected with active tracing cell signal assesses feedback unit;
Also comprise the power module for powering for each consumer, the consumer that described power module is assessed in feedback unit with active tracing unit and energy acceptance amount is respectively electrically connected;
Described active tracing unit comprises geomagnetic sensor, master controller and the mechanical adjustment module that signal successively connects, and described mechanical adjustment module and energy acceptance amount are assessed feedback unit signal and be connected;
Described energy acceptance amount assessment feedback unit comprises light sensor and the power computation module of signal connection successively, described mechanical adjustment module is connected with light sensor signal, and described power computation module is used for exporting result of calculation by corresponding result of calculation Real-time Feedback to master controller by RS232 serial ports;
The model that described light sensor at least comprises ROHM company is the sensor of BH1603FVC-TR; The model that power computation module at least comprises Cirrus Logic company is the computing module of CS5460; The microprocessor of master controller to be model be Atmel AT91SAM9G20, geomagnetic sensor is the model of Holleywell company is the sensor of HMC5843, the motor of the angle of pitch motor of photovoltaic battery panel to be model be SEW RX57 class;
Light sensor energy acceptance assessment electronic module is added on original active tracing solar power system surface; After tracking starts, astronomical algorithm calculates position angle and the angle of pitch of the current sun, then by mechanical system and mechanical adjustment module, photovoltaic battery panel is adjusted to corresponding position angle and pitch position, then light sensor is started, start to assess the real-time energy size that current solar rays produces inside light sensor, then whole photovoltaic battery panel starts a micro-dither process, controls angle of pitch motor and first starts to allow photovoltaic battery panel upwards slowly rotate; Calculate the size of the energy produced inside light sensor real-time in whole rotation process simultaneously, if it is increasing to produce real-time power, then continue up to rotate, till real-time reception energy no longer increases; If energy is more and more less, then toward counter-rotation, then real-time reception energy starts to increase gradually, turns to till energy no longer increases always.
2. the automatic correction system of motion tracking solar photovoltaic generating system according to claim 1, is characterized in that, the model that described power computation module at least comprises Cirrus Logic company is the computing module of CS5460.
3. the implementation method of the automatic correction system of motion tracking solar photovoltaic generating system according to claim 1, is characterized in that, comprising:
Master controller is Magnetic Sensor in combination, the position angle of photovoltaic battery panel and the theoretical value of the angle of pitch is calculated according to astronomical algorithm, by mechanical adjustment module, the current pose of photovoltaic battery panel is remedied to theoretical position angle and pitch position, starts light sensor simultaneously;
Light sensor Real-time Collection also stores current energy acceptance amount, and corresponding energy acceptance amount is fed back to master controller, and is up slowly rotated by the angle of pitch driven by motor photovoltaic battery panel of main controller controls photovoltaic battery panel;
The size variation trend of master controller real time discriminating present energy quantities received, and according to adjusting the position of photovoltaic battery panel during corresponding differentiation fructufy;
Described basis adjusts the position of photovoltaic battery panel operation when differentiating fructufy accordingly comprises:
If the energy acceptance amount of current sample time is larger than the energy acceptance amount of a upper sampling instant, then continue the operation that described angle of pitch driven by motor photovoltaic battery panel up rotates;
If the energy acceptance amount of current sample time is less than the energy acceptance amount of a upper sampling instant, then the angle of pitch motor controlling photovoltaic battery panel starts to drive photovoltaic battery panel to rotate toward contrary direction.
4. the implementation method of the automatic correction system of motion tracking solar photovoltaic generating system according to claim 3, is characterized in that, the operation adjusting the position of photovoltaic battery panel when described basis differentiates fructufy accordingly also comprises:
In the process that described angle of pitch driven by motor photovoltaic battery panel rotates toward contrary direction, if the energy acceptance amount of current sample time is larger than the energy acceptance amount of a upper sampling instant, then continue the operation that described angle of pitch driven by motor photovoltaic battery panel rotates toward contrary direction;
In the process that described angle of pitch driven by motor photovoltaic battery panel rotates toward contrary direction, if the energy acceptance amount of current sample time is less than the energy acceptance amount of a upper sampling instant, then terminate to correct, with the current location of photovoltaic battery panel for optimum point.
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| CN102541094B (en) * | 2012-02-13 | 2015-08-26 | 无锡泰克塞斯新能源科技有限公司 | Based on tracing type photovoltaic electricity generation system and its implementation of dimensionally Magnetic Sensor |
| CN106602986A (en) * | 2016-12-20 | 2017-04-26 | 石健玲 | Sunshine tracking system, solar energy application device and sunshine tracking method |
| CN107063337A (en) * | 2017-01-11 | 2017-08-18 | 国网山东省电力公司蓬莱市供电公司 | Power-supply device harvester and managing and control system |
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Effective date of registration: 20230515 Address after: Room 318-5, Building C, Zhimengyuan, No. 4 Gupinggang, Gulou District, Nanjing City, Jiangsu Province, 210000 Patentee after: Nanjing Yige New Energy Technology Co.,Ltd. Address before: Room 202, Block C, Building D, No. 5 Xinhua Road, Wuxi City, Jiangsu Province, 214135 Patentee before: WUXI TRACKSYS NEW ENERGY Co.,Ltd. |