CN116860012A - Agricultural light complementary greenhouse joint debugging method and system - Google Patents
Agricultural light complementary greenhouse joint debugging method and system Download PDFInfo
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Abstract
The invention provides a method and a system for joint debugging of an agricultural and optical complementary greenhouse. The joint debugging method comprises the following steps: step A, obtaining control parameters, calculating a rotation control quantity of a photovoltaic motor for driving the photovoltaic panel to rotate according to the control parameters, and controlling the photovoltaic motor to rotate according to the rotation control quantity, wherein the control parameters comprise a movement deviation, an inertia torque and a rotation angle of the photovoltaic motor, an illumination intensity of the photovoltaic panel and a total photovoltaic power generation quantity; step B, collecting crop images in the greenhouse, and judging whether crops lack illumination according to the crop images: if the crops lack illumination, continuously controlling the photovoltaic motor to drive the photovoltaic panel to stand for a set period of time, and then returning to execute the step B; and if the crops do not lack illumination, executing the step A. The invention can meet the illumination requirement of crop growth to the greatest extent and simultaneously realize the tracking of the maximum efficiency point of photovoltaic power generation more efficiently.
Description
Technical Field
The invention relates to the technical field of agricultural greenhouses, in particular to a method and a system for joint adjustment of an agricultural light complementary greenhouse.
Background
The agricultural light complementary greenhouse is characterized in that a solar photovoltaic panel (photovoltaic panel for short) is arranged at the top of a common greenhouse, and solar radiation is divided into light energy required by plants and light energy generated by solar energy by utilizing solar energy. At present, the agricultural light complementary greenhouse basically has the advantages that the photovoltaic plate assemblies are fixedly arranged at the top of the greenhouse, vegetables, melons and fruits are planted under the greenhouse, and a slit is formed in the top of the greenhouse for sunlight to directly enter. There is a problem in that crops under the photovoltaic panel are not sufficiently illuminated, resulting in an affected growth state. Therefore, the existing agricultural and photo-complementary greenhouse mainly uses agricultural production, photovoltaic power generation is used as assistance, the greenhouse is only suitable for planting camptothectic crops, the growth environment of the camptothectic crops is difficult to meet, and once the photovoltaic panel is installed, the photovoltaic panel is permanently fixed, so that the photovoltaic panel is unfavorable for matching the growth environment of various crops.
For this reason, the prior art has appeared the angularly adjustable photovoltaic board, and chinese patent publication No. CN107980427a discloses a photovoltaic green house that can be according to illumination angle adjustment, has realized that the photovoltaic board angle is adjustable, obtains high-efficient agriculture, green power generation economic benefits better. Gradually, the photovoltaic panel system with the adjustable angle is developed into a tracking type photovoltaic system, the actual illumination direction is tracked by the rotation angle of the photovoltaic panel, but the existing photovoltaic agricultural greenhouse is mostly more important for crop growth, the rotation of the photovoltaic panel is mostly used for keeping out wind, preventing rain, sunshine and the like for crops, the photovoltaic power generation amount is less, and both photovoltaic power generation and crop growth cannot be optimized simultaneously.
Disclosure of Invention
The invention aims to solve the technical problems that the existing photovoltaic green house mostly focuses on the growth of crops, the rotation of a photovoltaic panel mostly aims at keeping out wind, preventing rain, sunshine and the like for the crops, the photovoltaic power generation amount is low, and the simultaneous optimization of both photovoltaic power generation and the growth of the crops cannot be considered, and provides an agricultural and optical complementary greenhouse joint adjustment method and system.
In order to achieve the above object of the present invention, according to a first aspect of the present invention, there is provided a method for joint adjustment of agricultural and optical complementary greenhouses, comprising: step A, obtaining control parameters, calculating a rotation control quantity of a photovoltaic motor for driving a photovoltaic panel to rotate according to the control parameters, and controlling the photovoltaic motor to rotate according to the rotation control quantity, wherein the control parameters comprise a movement deviation, an inertia torque and a rotation angle of the photovoltaic motor, illumination intensity of the photovoltaic panel and total photovoltaic power generation quantity; step B, collecting crop images in the greenhouse, and judging whether crops lack illumination according to the crop images: if the crops lack illumination, continuously controlling the photovoltaic motor to drive the photovoltaic panel to stand for a set period of time, and then returning to execute the step B; and if the crops do not lack illumination, executing the step A.
In order to achieve the above object of the present invention, according to a second aspect of the present invention, there is provided an agricultural light complementary greenhouse joint debugging system comprising: the illumination sensor is positioned on the photovoltaic panel and used for detecting the illumination intensity of the photovoltaic panel; the automatic light tracking system comprises a photovoltaic motor and a transmission mechanism, wherein the transmission mechanism converts rotation of a motor shaft of the photovoltaic motor into rotation of a photovoltaic plate; the camera is used for shooting crop images in the greenhouse; the photovoltaic electric quantity calculation system is used for calculating the total photovoltaic power generation quantity of the photovoltaic panels on the greenhouse; the motor motion acquisition device is used for acquiring motion information of the photovoltaic motor; the joint debugging system is used for executing the steps in the agricultural light complementary greenhouse joint debugging method provided by the first aspect of the invention.
In order to achieve the above object of the present invention, according to a third aspect of the present invention, there is provided an agricultural light complementary greenhouse, comprising a greenhouse, a plurality of photovoltaic panels disposed on top of the greenhouse, and an agricultural light complementary greenhouse joint modulation system provided in the second aspect of the present invention.
The beneficial technical effects of the invention are as follows: when the crops under the shed lack illumination, the photovoltaic motor drives the photovoltaic plate to rotate, so that the photovoltaic plate always faces the direction with the strongest illumination, photovoltaic power generation is performed as much as possible, when the crops under the shed lack illumination, the photovoltaic plate is erected to enable light to be directly irradiated onto the crops as much as possible, illumination is efficiently supplemented, after the crops under the shed lack illumination, after the crops are continuously erected for a set period of time, the step A or the step B is selected according to the illumination supplementing condition, and the photovoltaic power generation can be switched to in time after the illumination supplement of the crops is sufficient; and the rotation control quantity of the photovoltaic motor is combined with the movement deviation, the inertia torque and the rotation angle of the photovoltaic motor, the illumination intensity of the photovoltaic panel and a plurality of parameters of the total photovoltaic power generation quantity are combined and calculated, so that the obtained rotation control quantity is more accurate, and the maximum efficiency point tracking of the photovoltaic power generation is realized more efficiently while the growth illumination requirement of crops is met to the greatest extent. The system can be matched with the growth environment of various crops.
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FIG. 1 is a schematic flow chart of a combined agricultural and optical complementary greenhouse tone in an embodiment of the invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.
The invention discloses a method for joint debugging of an agricultural and optical complementary greenhouse, in an embodiment, a flow diagram of the joint debugging method is shown in fig. 1, and the method comprises the following steps:
and A, acquiring control parameters, calculating a rotation control quantity of a photovoltaic motor for driving the photovoltaic panel to rotate according to the control parameters, and controlling the photovoltaic motor to rotate according to the rotation control quantity, wherein the control parameters comprise movement deviation, inertia torque and rotation angle of the photovoltaic motor, illumination intensity of the photovoltaic panel and total photovoltaic power generation quantity.
In this embodiment, the calculation of the rotation control amount combines the movement deviation, the inertia torque and the rotation angle of the photovoltaic motor, the illumination intensity of the photovoltaic panel and the total photovoltaic power generation amount, so that the photovoltaic power generation device is more accurate, and can always track sunlight to perform photovoltaic power generation. The movement deviation of the photovoltaic motor is preferably, but not limited to, a difference between an actual rotational speed at a certain time and a target rotational speed at the certain time, or a difference between an actual rotational angle at a certain time and a target rotational angle at the certain time. The actual rotation speed or the actual rotation angle of the motor shaft of the photovoltaic motor can be detected through the rotation speed sensor, and then the difference value between the actual rotation speed or the actual rotation angle and the preset target rotation speed and the preset target rotation angle is obtained. After the rotation control quantity of the photovoltaic motor of each photovoltaic panel is obtained, the rotation of the photovoltaic motor is controlled according to the rotation control quantity, wherein the photovoltaic motor is preferably but not limited to a stepping motor, and the rotation control quantity is preferably but not limited to the pulse number of the photovoltaic motor.
In this embodiment, to simplify the calculation, it is preferable that the illumination intensity of the photovoltaic panel is preferably, but not limited to, obtained by providing an illumination sensor on the photovoltaic panel, the obtained value of which is an indirect measurement. For obtaining more accurate measurement results, preferably, the illumination intensity at the moment n of the photovoltaic panel is calculated according to the following formula:
wherein L is n C is the illumination intensity of the photovoltaic panel at the moment n diff Is a slow reflection color coefficient, C spec For the highlight color coefficient, m ' represents the diffusion range of control highlight, and generally, the larger m ' is, the more concentrated the light spot is, and generally, m ' =10; cos theta l A point multiplication of the surface normal of the photovoltaic panel and the direction of light rays; cos theta h A dot product representing the photovoltaic panel surface normal and the half angle vector (i.e., the angle between the photovoltaic panel surface and the direction of the light rays); the overall algorithm formula logic is: illumination intensity = slow reflection + specular reflection. In general, the current time is taken as the n time.
In this embodiment, preferably, in order to accurately obtain the total photovoltaic power generation amount, the rotation control amount accuracy of the photovoltaic panels is improved, the total photovoltaic power generation amount is the sum of the power generation amounts of all the photovoltaic panels on the greenhouse, and the total photovoltaic power generation amount is calculated according to the following formula:
wherein phi is the electric energy conversion capacity coefficient of the photovoltaic panel, is a dimensionless coefficient,L n represents the illumination intensity of the photovoltaic panel at the moment n, and the unit is w/m 2 ；A 2 Is the power generation area of the photovoltaic panel, unit m 2 The method comprises the steps of carrying out a first treatment on the surface of the η' is the conversion efficiency of the photovoltaic panel without a dimensionless coefficient; t is the light receiving time length of the photovoltaic panel, and the unit is seconds(s); p'. mtd The power consumption value of the time period T in the mth inverter; s represents the index of the photovoltaic panel, S represents the number of the photovoltaic panels, s.epsilon.1, S]The method comprises the steps of carrying out a first treatment on the surface of the K represents the inverter index, K represents the number of inverters, K e [1, K]；M k Is the number of inverter samples, which represent the inverter for calculating the power generation of the photovoltaic panel, m.epsilon.1, M, randomly extracted during the inversion of the system k ]；N′ k The starting-up quantity of the inverter is represented; p (P) jkm The generated power of the mth inverter. Data fitting the total power generation efficiency of the inverter by calculating the deviation value of the power generation efficiency of the inverter sampleAnd calculating the final more accurate total photovoltaic power generation value according to the rate. t is t i Represents the time at time i, i.e. [1, n ]]。
Further preferably, in order to accurately obtain the inertia torque J of the photovoltaic motor ε The inertia torque J of the photovoltaic motor is calculated according to the following calculation formula ε ：
Wherein θ represents the rotation angle of the photovoltaic motor; beta represents a damping value of the photovoltaic motor; k (K) 1 A starting force value representing the movement of the photovoltaic motor to a target angle; t (T) z Represents the sum of the drag torques independent of θ; t (T) d Representing the electromagnetic torque produced by the photovoltaic motor. J (J) ε The dimension of (2) can be expressed as Kg.m 2 。
Step B, collecting crop images in the greenhouse, and judging whether crops lack illumination according to the crop images: if the crops lack illumination, continuously controlling the photovoltaic motor to drive the photovoltaic panel to stand for a set period of time, and then returning to execute the step B; and if the crops do not lack illumination, executing the step A.
In this embodiment, the set time period is preferably, but not limited to, half an hour or 3 hours or 8 hours. After the initialization, the step a may be performed first, or the step B may be performed first. According to the invention, after the lack of illumination of crops is judged, the photovoltaic panel is continuously erected to maximally supplement illumination to the crops until the lack of illumination is no longer needed after the crop is supplemented, and then the rotation control quantity of the photovoltaic motor is accurately calculated to control the rotation of the photovoltaic panel, so that the photovoltaic panel is utilized to receive the photovoltaic energy to generate electricity to the greatest extent, and meanwhile, the crop growth requirement and the electricity generation requirement are considered.
Preferably, in order to better enable crops to receive illumination, avoid damage to crops by excessive light and avoid solar energy waste, and generate electricity as much as possible in a photovoltaic mode, in the step B, if the crops lack illumination, the photovoltaic panel can be vertically supplemented with illumination according to the optimal crop illumination time period corresponding to seasonal climate, and the set time period is preferably but not limited to 1 day or 2 days or 3 days. And (3) performing the step A to perform photovoltaic power generation at the time of other non-optimal crop illumination time periods. For example, on sunny days in summer, the optimal illumination time period is 6 to 10 am and 4 to 6 pm, and the crops are likely to be burnt due to the fact that the light in noon is too strong, and photovoltaic power generation can be carried out in the period.
In this embodiment, in order to more accurately determine whether the crop lacks illumination, it is preferable that after the crop image is acquired, the crop image is subjected to gaussian smoothing processing on the X axis and the Y axis, respectively, to obtain a smoothed image, and whether the crop lacks illumination is determined according to the smoothed image.
Further preferably, the X-axis and Y-axis gaussian smoothing is performed using the following formula:
wherein e represents natural logarithm, and the value is about 2.71; h (X) represents an X-axis coordinate after the X-axis gaussian smoothing process, H (Y) represents a Y-axis coordinate after the Y-axis gaussian smoothing process, X represents an X-axis coordinate in the crop image, Y represents a Y-axis coordinate in the crop image, σ is a variance, and the values are σ=1, σ=1.5, and σ=2; the image edge processing results obtained are different according to the different values of σ, and the image processing result is the best result when σ=1.5.
In this embodiment, a standard growth correspondence table of greenhouse crops is pre-established, the growth time length and the plant parameters in the standard growth correspondence table are associated and correspond, after the crop growth time length is obtained, the corresponding plant parameters can be obtained by querying the standard growth correspondence table, and whether the crops lack illumination can be judged by comparing the queried plant parameters with the plant parameters extracted from the crop images/smooth images. Plant parameters are preferably but not limited to leaf size, fruit size, flower size. If the growth time of greenhouse crops is recorded, inquiring the corresponding standard leaf/fruit/flower size from the standard growth corresponding table based on the growth time, extracting the leaf/fruit/flower from the crop image/smooth image, calculating the actual leaf/fruit/flower size, and considering that the crops lack illumination if the actual leaf/fruit/flower size is smaller than the standard leaf/fruit/flower size, otherwise, the crops lack illumination. Of course, two or more parameters may be selected for simultaneous determination to improve the accuracy of determination.
In an embodiment, a calculation formula of a rotation control amount of a photovoltaic motor in the agricultural and optical complementary greenhouse joint debugging method is as follows:
wherein T is K The rotation control quantity of the photovoltaic motor is represented, and the dimension is Kg.m 2 The essence of the rotation control quantity is the target torque of the photovoltaic motor at the next moment, the target torque corresponds to the PWM pulse number input to the photovoltaic motor, the target torque is converted into the PWM pulse number in the actual control process and then input to the photovoltaic motor control end, and larger current is output to the photovoltaic motor, so that larger torque is generated; k (K) P Representing a scale coefficient, a dimensionless coefficient; t (T) avg (T) represents the average rotational torque of the photovoltaic motor,T avg the dimension of (T) is Kg.m 2 T is the light receiving time length of the photovoltaic panel, specifically, the time length from the initial time to the current time n, v is the running rotating speed of the photovoltaic motor, and P' j The total power generation amount of all photovoltaic panels is calculated; x is X 1 Representing an integration time; x represents the sampling calculation period of the photovoltaic motor; x is X D Representing differential time; e (i) represents the motion deviation of the photovoltaic motor at the moment i, specifically the deviation between the actual torque and the target torque of the photovoltaic motor at the moment i, i represents the sampling serial number, and i is less than or equal to n; e (n) represents the motion deviation of the photovoltaic motor at the moment n; e (n-1) represents the motion deviation of the photovoltaic motor at the moment n-1; j (J) ε (n) represents the inertia torque of the photovoltaic motor at time n; j (J) ε (n-1) represents the inertia torque of the photovoltaic motor at time n-1.
In the embodiment, the closed loop control of the parameter adjustment of the photovoltaic motor is formed, and T is introduced avg (T) represents T K Photovoltaic motor at moment nThe light-tracing joint modulation and the photovoltaic power generation amount have a certain linear relation.Representing the accumulated value, K of the nth motion deviation of the motion sampling of the photovoltaic motor P T avg And (T) represents proportional control of the tandem photovoltaic motor, and the effect of the proportional control is to feed back the photovoltaic motor and improve the motion response speed of the photovoltaic motor after the sampling data are converted. />Representing integral control of the coupled photovoltaic motor, wherein the integral control is used for reducing a target motion deviation value of the photovoltaic motor;the differential control of the parallel photovoltaic motor is represented, and the differential control is used for inhibiting the oscillation of the photovoltaic motor; the joint debugging algorithm can meet the growth requirement of crops to the greatest extent and simultaneously realize the tracking of the maximum efficiency point of photovoltaic power generation more efficiently.
The invention also discloses an agricultural light complementary greenhouse joint debugging system, which in an embodiment comprises: the illumination sensor is positioned on the photovoltaic panel and used for detecting the illumination intensity of the photovoltaic panel; the automatic light tracking system comprises a photovoltaic motor and a transmission mechanism, wherein the transmission mechanism converts the rotation of a motor shaft of the photovoltaic motor into the rotation of a photovoltaic plate; the camera is used for shooting crop images in the greenhouse; the photovoltaic electric quantity calculation system is used for calculating the total photovoltaic power generation quantity of the photovoltaic panels on the greenhouse; the motor motion acquisition device is used for acquiring motion information of the photovoltaic motor and acquiring motion deviation, inertia torque and rotation angle based on the motion information; the joint debugging system is used for executing the steps in the agricultural light complementary greenhouse joint debugging method provided by the embodiment of the invention.
In this embodiment, each photovoltaic panel is provided with an illumination sensor, and the normal line of the light receiving surface of the illumination sensor is parallel to the normal line of the light Fu Banguang receiving surface, so that when the illumination sensor receives the maximum illumination intensity, the photovoltaic panel also receives the maximum illumination intensity, and at this time, the photovoltaic panel is basically perpendicular to the sun. Each photovoltaic panel is provided with an automatic light following system, a motor motion acquisition device and a networking module. The networking module is connected with the photovoltaic motor and transmits control data from the joint debugging system to the photovoltaic motor. The networking module is also connected with the motor motion acquisition device and used for acquiring motor motion information and transmitting the motor motion information to the joint debugging system.
The automatic light following system comprises a photovoltaic motor and a transmission mechanism, the transmission mechanism converts the rotation of a motor shaft of the photovoltaic motor into the rotation of a photovoltaic plate, the transmission mechanism is preferably but not limited to a supporting frame, the supporting frame is of an angle-adjustable single-shaft structure or a double-shaft structure, the single-shaft structure supporting frame rotates under the action of the photovoltaic motor to track the azimuth angle of sunlight, the double-shaft structure supporting frame is driven by two rotating shafts and the corresponding photovoltaic motor, one rotating shaft drives the supporting frame to rotate under the action of the photovoltaic motor to track the azimuth angle of sunlight, and the other rotating shaft drives the supporting frame to rotate under the action of the photovoltaic motor to track the altitude angle of sunlight. The specific structure of the supporting frame may refer to the supporting frame structure in publication number CN115409432a, and will not be described herein.
The motor motion acquisition device comprises a rotating speed sensor for measuring the rotating speed of a motor shaft of the photovoltaic motor or an angle sensor for measuring the rotating angle of the motor shaft of the photovoltaic motor.
The photovoltaic power computing system includes a plurality of inverters, a networking module, and a power metering unit. The electric quantity metering unit is used for controlling the on or off of the inverter, calculating the photovoltaic power generation electric quantity, transmitting the calculated photovoltaic power generation electric quantity to the joint debugging system through the networking module, and transmitting the inverter control data of the joint debugging system to the electric quantity metering unit through the networking module, wherein the electric quantity metering unit is used for controlling the inverter. The power metering unit may be a microprocessor. The joint debugging system is preferably, but not limited to, a personal computer and a server.
The specific implementation process of the system comprises the following steps:
step 1, the joint debugging system obtains the total photovoltaic power generation amount, the illumination intensity and the photovoltaic motor motion information from an electric quantity metering unit, an illuminance sensor and a motor motion acquisition device through a networking module, obtains control parameters such as the photovoltaic motor motion deviation, the inertia torque and the rotation angle based on the photovoltaic motor motion information, calculates the rotation control quantity of the photovoltaic motor for driving the photovoltaic panel to rotate according to the control parameters, and transmits the rotation control quantity to an automatic light following system to control the photovoltaic motor to rotate according to the rotation control quantity.
Step 2, the joint debugging system controls the camera to acquire crop images in the greenhouse, and judges whether crops lack illumination according to the crop images: if the crops lack illumination, continuously controlling the photovoltaic motor to drive the photovoltaic panel to stand for a set period of time, and then returning to execute the step 2; and if the crops do not lack illumination, executing the step 1.
In this embodiment, the illumination sensor, the automatic light-following system, the camera, the photovoltaic electric quantity calculation system, the motor motion acquisition device and the joint debugging system are connected through a networking module to form the internet of things. The networking module can be a communication module such as WIFI and Zigbee.
In this embodiment, further, the system further includes a monitoring end, where the monitoring end is connected and communicated with the internet of things. The monitoring end is preferably, but not limited to, a mobile phone or a computer, remote control of equipment inside and outside the shed is realized through the mobile phone or the computer, and 360-degree dead-angle-free rotation of the solar photovoltaic panel mounted on the shed can be realized through remote control of the mobile phone.
The invention also discloses an agricultural light complementary greenhouse, which in one embodiment comprises a greenhouse, a plurality of photovoltaic panels arranged at the top of the greenhouse, and the agricultural light complementary greenhouse joint adjustment system provided by the invention.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The agricultural light complementary greenhouse joint debugging method is characterized by comprising the following steps of:
step A, obtaining control parameters, calculating a rotation control quantity of a photovoltaic motor for driving a photovoltaic panel to rotate according to the control parameters, and controlling the photovoltaic motor to rotate according to the rotation control quantity, wherein the control parameters comprise a movement deviation, an inertia torque and a rotation angle of the photovoltaic motor, illumination intensity of the photovoltaic panel and total photovoltaic power generation quantity;
step B, collecting crop images in the greenhouse, and judging whether crops lack illumination according to the crop images: if the crops lack illumination, continuously controlling the photovoltaic motor to drive the photovoltaic panel to stand for a set period of time, and then returning to execute the step B; and if the crops do not lack illumination, executing the step A.
2. The agricultural and optical complementary greenhouse joint adjustment method as claimed in claim 1, wherein the total amount of photovoltaic power generation P' j The total generated energy of all photovoltaic panels on the greenhouse is calculated according to the following formula:
wherein phi is the electric energy conversion capacity coefficient of the photovoltaic panel,L n represents the illumination intensity of the photovoltaic panel at the moment n, A 2 Is the power generation area of the photovoltaic panel, eta 'is the conversion efficiency of the photovoltaic panel, T is the light receiving time length of the photovoltaic panel, and P' mtd The power consumption value of the time period T in the mth inverter; s represents the index of the photovoltaic panel, S represents the number of the photovoltaic panels, s.epsilon.1, S]The method comprises the steps of carrying out a first treatment on the surface of the K represents the inverter index, K representsThe number of inverters, k.epsilon.1, K]；M k Is the number of inverter samples, m.epsilon.1, M k ]；N′ k The starting-up quantity of the inverter is represented; p (P) jkm Is the power generated by the m-th inverter, t i The time at time i is indicated.
3. The agricultural and optical complementary greenhouse joint adjustment method according to claim 1, wherein the inertia torque J of the photovoltaic motor ε The calculation formula is as follows:
wherein θ represents the rotation angle of the photovoltaic motor; beta represents a damping value of the photovoltaic motor; k (K) 1 A starting force value representing the movement of the photovoltaic motor to a target angle; t (T) z Represents the sum of the drag torques independent of θ; t (T) d Representing the electromagnetic torque produced by the photovoltaic motor.
4. The agricultural and optical complementary greenhouse joint debugging method according to one of claims 1 to 3, wherein the rotation control amount calculation formula of the photovoltaic motor is as follows:
wherein T is K Representing the rotation control quantity of the photovoltaic motor; k (K) P Representing a scaling factor; t (T) avg (T) represents the average rotational torque of the photovoltaic motor,t is the light receiving time length of the photovoltaic panel, v is the running rotating speed of the photovoltaic motor, and P' j The total power generation amount of all photovoltaic panels is calculated; x is X 1 Representing an integration time; x represents the sampling calculation period of the photovoltaic motor; x is X D Representing differential time; e (i) represents the motion deviation of the photovoltaic motor at the moment i, i represents the sampling serial number, and i is less than or equal to n; e (n) represents time nMotion deviation of the photovoltaic motor; e (n-1) represents the motion deviation of the photovoltaic motor at the moment n-1; j (J) ε (n) represents the inertia torque of the photovoltaic motor at time n; j (J) ε (n-1) represents the inertia torque of the photovoltaic motor at time n-1.
5. The method for joint debugging of agricultural and light complementation greenhouse according to claim 4, wherein after the crop images are collected, the crop images are subjected to Gaussian smoothing on an X axis and a Y axis respectively to obtain smooth images, and whether the crops lack illumination is judged according to the smooth images.
6. The method for the agricultural light complementation greenhouse joint debugging according to claim 5, wherein the following formula is adopted for carrying out Gaussian smoothing on the X axis and the Y axis:
where e represents a natural logarithm, H (X) represents an X-axis coordinate after the X-axis gaussian smoothing process, H (Y) represents a Y-axis coordinate after the Y-axis gaussian smoothing process, X represents an X-axis coordinate in the crop image, Y represents a Y-axis coordinate in the crop image, and σ is a variance.
7. An agricultural light complementary greenhouse joint debugging system, which is characterized by comprising:
the illumination sensor is positioned on the photovoltaic panel and used for detecting the illumination intensity of the photovoltaic panel;
the automatic light tracking system comprises a photovoltaic motor and a transmission mechanism, wherein the transmission mechanism converts rotation of a motor shaft of the photovoltaic motor into rotation of a photovoltaic plate;
the camera is used for shooting crop images in the greenhouse;
the photovoltaic electric quantity calculation system is used for calculating the total photovoltaic power generation quantity of the photovoltaic panels on the greenhouse;
the motor motion acquisition device is used for acquiring motion information of the photovoltaic motor;
a joint debugging system for executing the steps in the agricultural light complementary greenhouse joint debugging method according to any one of claims 1 to 6.
8. The agricultural light complementation greenhouse joint debugging system according to claim 7, wherein the illumination sensor, the automatic light following system, the camera, the photovoltaic electric quantity calculation system, the motor motion acquisition device and the joint debugging system are connected with one another to form the internet of things through a networking module.
9. The agricultural and optical complementary greenhouse joint debugging system according to claim 8, further comprising a monitoring end, wherein the monitoring end is connected and communicated with the Internet of things.
10. An agricultural light complementary greenhouse which is characterized by comprising a greenhouse, a plurality of photovoltaic panels arranged at the top of the greenhouse and the agricultural light complementary greenhouse joint debugging system as claimed in any one of claims 7-9.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117498770A (en) * | 2023-12-29 | 2024-02-02 | 江西联合能源有限公司 | Solar photovoltaic power generation system based on agricultural light complementation |
| CN118413186A (en) * | 2024-04-16 | 2024-07-30 | 华能澜沧江水电股份有限公司 | Adjustment method and system for agricultural and optical complementary photovoltaic power generation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117498770A (en) * | 2023-12-29 | 2024-02-02 | 江西联合能源有限公司 | Solar photovoltaic power generation system based on agricultural light complementation |
| CN118413186A (en) * | 2024-04-16 | 2024-07-30 | 华能澜沧江水电股份有限公司 | Adjustment method and system for agricultural and optical complementary photovoltaic power generation system |
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