CN116009116A - Method and system for collecting climate of photovoltaic power station for early warning - Google Patents
Method and system for collecting climate of photovoltaic power station for early warning Download PDFInfo
- Publication number
- CN116009116A CN116009116A CN202211693154.4A CN202211693154A CN116009116A CN 116009116 A CN116009116 A CN 116009116A CN 202211693154 A CN202211693154 A CN 202211693154A CN 116009116 A CN116009116 A CN 116009116A
- Authority
- CN
- China
- Prior art keywords
- wind speed
- wind
- internal
- peripheral
- preset
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a method and a system for collecting climate of a photovoltaic power station for early warning, wherein the method comprises the following steps: monitoring peripheral climate data and internal climate data of the photovoltaic power station; the peripheral climate data includes: peripheral wind speed, peripheral wind direction and peripheral wind speed maintenance time; the internal climate data includes: internal wind speed, internal wind direction, and internal wind speed maintenance time; when the wind with continuity in the periphery exceeding the first preset wind speed is monitored, no wind with the wind speed higher than the second preset wind speed exists inside, the tracker is controlled to rotate the photovoltaic panel to the early warning position; the first preset wind speed is a critical wind speed value which can be born by the photovoltaic panel at the early warning position, and the second preset wind speed is a critical wind speed value which can be born by the photovoltaic panel at the normal tracking position. According to the invention, when strong wind occurs, the photovoltaic panel is adjusted to the early warning position for stopping in the windward direction in advance, so that the risk that the photovoltaic panel cannot rotate in time due to too fast wind speed of the strong wind in the rotation adjustment process is reduced.
Description
Technical Field
The invention relates to the field of early warning of climate of photovoltaic power stations, in particular to a method and a system for acquiring climate of a photovoltaic power station for early warning.
Background
The current photovoltaic power station is internally provided with one or more wind senses, when the strong wind scrapes the photovoltaic power station, the strong wind can be known to come, the field of the 10MW photovoltaic power station usually occupies 20 ten thousand square meters, some hundred million mesh-level power stations are more prolonged for several kilometers and the material consumption is huge, therefore, when the strong wind passes through the ground, the partial area of the field can reach high wind speed, in order to reduce the risk, the existing measures are that the photovoltaic panel is turned to the corresponding protection angle through the tracker on the photovoltaic panel at a lower wind speed, but the occurrence probability of low-speed wind is higher, the tracker can not be normally started to track the sun by frequent starting of the tracker, and the generated energy is influenced. In addition, the wind speed of a single point cannot accurately represent the wind speed of the full photovoltaic electric field, the wind speed in a certain direction around the photovoltaic power station suddenly increases, the photovoltaic panel does not rotate to a protection angle, and the possibility of failure of the high wind protection measures exists.
Disclosure of Invention
The invention provides a method and a system for collecting climate of a photovoltaic power station for early warning, and aims to solve the technical problem that the photovoltaic panel is frequently rotated under the condition of low wind speed and is difficult to track the sun normally because the photovoltaic panel is required to be adjusted to a protection angle before the heavy wind comes.
Specifically, the technical scheme of the invention is as follows:
in a first aspect, the invention provides a method for collecting climate of a photovoltaic power station for early warning, comprising the following steps:
monitoring peripheral climate data of a photovoltaic power station and internal climate data of the photovoltaic power station; the peripheral climate data includes: peripheral wind speed, peripheral wind direction and peripheral wind speed maintenance time; the internal climate data includes: internal wind speed, internal wind direction, and internal wind speed maintenance time;
when the peripheral wind speed is monitored to be larger than the first preset wind speed and the peripheral wind speed maintenance time is monitored to be larger than the preset time, and the internal wind speed is monitored to be smaller than the second preset wind speed, a pre-rotation control signal is sent to a tracker; the first preset wind speed is a critical wind speed value which can be born by the photovoltaic panel at an early warning position, and the second preset wind speed is a critical wind speed value which can be born by the photovoltaic panel at a normal tracking position;
rotating the photovoltaic panel to the early warning position according to the pre-rotation control signal; the early warning position is between the normal tracking position and the high wind protection position.
According to the method, when the conditions that strong wind exists around the power station and the wind speed inside the power station is low are analyzed and judged according to the monitored weather information around the photovoltaic power station and the internal weather information, the photovoltaic panel can rotate to a position of an early warning angle between a normal tracking angle and a strong wind protection angle in advance before the strong wind reaches the photovoltaic power station, and the situation that the wind speed is high is avoided, and the photovoltaic panel cannot rotate to the strong wind protection position until the photovoltaic panel is not rotated to the strong wind protection position.
In some embodiments of the method for collecting climate information of a photovoltaic power station for early warning, after the monitoring of the peripheral climate data of the photovoltaic power station and the internal climate data of the photovoltaic power station, the method further includes:
and when the peripheral wind speed is monitored to be smaller than the second preset wind speed, and the internal wind speed is monitored to be larger than a third preset wind speed and the internal wind speed maintaining time is monitored to be larger than the preset time, a pre-rotation control signal is sent to the tracker, the photovoltaic panel is rotated to the early warning position, and the third preset wind speed is obtained by subtracting a preset safety value from the second preset wind speed.
The embodiment provides another condition that strong wind exists inside the power station and the wind speed is low outside, and the photovoltaic panel needs to be rotated to the early warning position.
In some embodiments of the method for collecting the climate of the photovoltaic power station for early warning, the method for sending the pre-rotation control signal to the tracker further includes:
calculating to obtain the arrival time of the peripheral wind according to the peripheral wind speed and the distance from the monitoring point of the peripheral climate data to the photovoltaic panel;
setting peripheral rotation starting time according to the peripheral wind arrival time and the rotation speed of the photovoltaic panel;
and sending the pre-rotation control signal to the tracker according to the peripheral rotation starting time.
According to the embodiment, when strong wind exists around, the peripheral rotation starting time of the pre-rotation is set according to the wind arrival time and the rotation speed of the photovoltaic panel, so that the reliability of the system is improved.
In some embodiments of the method for collecting climate information of a photovoltaic power station for early warning, after the rotating the photovoltaic panel to the early warning position according to the pre-rotation control signal, the method further includes:
when the peripheral wind speed and the internal wind speed are continuously monitored to be smaller than the second preset wind speed, a normal tracking control signal is sent to the tracker, and the normal tracking control signal rotates the photovoltaic panel from the early warning position to the normal tracking position;
and when the internal wind speed is continuously monitored to be larger than the first preset wind speed, sending a high wind protection control signal to the tracker, wherein the high wind protection control signal rotates the photovoltaic panel from the early warning position to the high wind protection position.
In the embodiment, the peripheral wind speed and the internal wind speed are continuously monitored, so that the subsequent angle adjustment of the photovoltaic panel is performed.
In some embodiments of the method of collecting photovoltaic power plant climate for early warning, comprising:
counting and analyzing the peripheral wind direction and the internal wind direction within the preset wind direction collecting time to obtain wind direction probabilities of different wind directions;
according to the wind direction probabilities of different wind directions, different numbers of monitoring points are arranged in different directions around the photovoltaic power station.
According to the wind direction monitored for a long time, the number of the set monitoring points can be correspondingly adjusted according to the wind direction of wind blowing of the photovoltaic power station for a long time, so that each monitoring point can be effectively utilized to monitor real-time climate.
In a second aspect, the present invention provides a system for collecting climate information from a photovoltaic power plant for early warning, comprising:
the sentry wind sensing device is connected with the control device, is arranged at a monitoring point position which is at a preset distance from the periphery of the photovoltaic power station, and is used for monitoring peripheral climate data and sending the peripheral climate data to the control device; the peripheral climate data includes: peripheral wind speed, peripheral wind direction, peripheral wind speed maintenance time;
the main wind sensing device is connected with the control device, is arranged in the photovoltaic power station, and is used for monitoring internal climate data and sending the internal climate data to the control device; the internal climate data includes: an internal wind speed, an internal wind direction, the internal wind speed maintenance time;
the control device is connected with the tracker and used for sending a pre-rotation control signal to the tracker when the peripheral wind speed is monitored to be larger than the first preset wind speed and the peripheral wind speed maintenance time is monitored to be larger than the preset time and the internal wind speed is monitored to be smaller than the second preset wind speed;
the tracker is used for rotating the photovoltaic panel to an early warning position according to the received pre-rotation control signal; the early warning position is that the photovoltaic panel is between the normal tracking position and the strong wind protection position.
In some embodiments of the system for collecting the climate of a photovoltaic power station for early warning, the sentinel wind sensing device or the main wind sensing device comprises an antenna arranged on the upper portion of a support, a wind sensing device arranged on the upper portion of the support and side by side with the antenna, a communication box arranged below the support, and a base for fixedly supporting the support and the communication box.
In some embodiments of the system for collecting climate information from a photovoltaic power plant, the primary wind sensing device may be a wind sensing device disposed within each subarray of the photovoltaic power plant.
In some embodiments of the system for collecting early warning of the climate of a photovoltaic power plant,
the control device is further configured to send a pre-rotation control signal to the tracker when it is monitored that the peripheral wind speed is less than the second preset wind speed, but it is monitored that the internal wind speed is greater than a third preset wind speed, and the internal wind speed maintenance time is greater than the preset time, where the third preset wind speed is the second preset wind speed minus a preset safety value.
In some embodiments of the system for collecting early warning of the climate of a photovoltaic power plant,
the control device further comprises an arithmetic unit, wherein the arithmetic unit is further used for calculating internal wind arrival time according to the internal wind speed and the distance from the main wind sensing device to the photovoltaic panel;
the control device is also used for setting internal rotation starting time according to the internal wind arrival time and the rotation speed of the photovoltaic panel; and sending the pre-rotation control signal to the tracker according to the internal rotation start time.
In some embodiments of the system for collecting early warning of the climate of a photovoltaic power plant,
the control device is further used for sending a normal tracking control signal to the tracker when the peripheral wind speed and the internal wind speed are continuously monitored to be smaller than the second preset wind speed, and the normal tracking control signal rotates the photovoltaic panel from the early warning position to the normal tracking position;
and when the internal wind speed is continuously monitored to be larger than the first preset wind speed, sending a high wind protection control signal to the tracker, wherein the high wind protection control signal rotates the photovoltaic panel from the early warning position to the high wind protection position.
Compared with the prior art, the invention has at least one of the following beneficial effects:
1. according to the invention, when the conditions that strong wind exists around the power station and the wind speed in the power station is low are analyzed and judged according to the monitored climate information around the photovoltaic power station and the monitored climate information in the power station, the photovoltaic panel can rotate to a position of an early warning angle between a normal tracking angle and a high wind protection position angle in advance before the high wind reaches the photovoltaic power station, and the situation that the photovoltaic panel cannot rotate to the high wind protection position from the normal tracking position directly under the condition that the wind speed is high only through the climate information collected in the photovoltaic power station is avoided.
2. According to the invention, when strong wind exists in the interior and the wind speed outside is low, the wind can also rotate to an early warning position, and when the whistle is monitored, the value of the third preset wind speed can be set to be a larger value than the conventional third preset wind speed without the whistle monitoring, so that the situation that the wind speed often exceeds the value of the third preset wind speed, and the sunlight cannot be normally tracked due to frequent rotation of the photovoltaic panel is avoided, but in order to protect the photovoltaic panel, the value is also smaller than the second preset wind speed.
3. According to the time of the strong wind reaching the photovoltaic panel and the rotation speed of the photovoltaic panel, the corresponding pre-rotation starting time is set, and the reliability of the system is improved.
4. According to the invention, after the photovoltaic panel is adjusted to an early warning angle, the internal climate data is continuously monitored, and when strong wind appears in the power station, the photovoltaic panel is rotated to a strong wind protection angle; when the wind speed inside and outside the photovoltaic power station is monitored to be smaller than the second wind speed and no strong wind appears, the photovoltaic panel is rotated to a normal tracking position.
5. According to the invention, more monitoring points are arranged in the direction with larger influence on the wind direction of the photovoltaic power station, and fewer monitoring points are arranged in the direction with smaller influence on the wind direction, so that the utilization rate of the monitoring points is improved, and the construction cost of the photovoltaic power station is reduced.
Drawings
The above features, technical features, advantages and implementation of the present invention will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and easily understood manner.
FIG. 1 is a flow chart of one embodiment of a method of the present invention for collecting a photovoltaic power plant climate for early warning;
FIG. 2 is a flow chart of one embodiment of a method of the present invention for collecting a photovoltaic power plant climate for early warning;
FIG. 3 is a system block diagram of one embodiment of a system of the present invention for collecting photovoltaic power plant climate for early warning;
FIG. 4 is a diagram illustrating one embodiment of a system for collecting a photovoltaic power plant climate for early warning in accordance with the present invention;
figure 5 is a drawing illustrating one embodiment of a system for collecting a photovoltaic power plant climate for early warning in accordance with the present invention.
Reference numerals illustrate:
10- -a primary wind sensing device; 20- -a sentinel wind-sensing device; 30- -a control device; 31- -an operator; 40- -tracker.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will explain the specific embodiments of the present invention with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
For simplicity of the drawing, only the parts relevant to the invention are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In one embodiment, referring to fig. 1 of the specification, the method for collecting climate of a photovoltaic power station for early warning provided by the invention includes:
in step S110, monitoring peripheral climate data of a photovoltaic power station and internal climate data of the photovoltaic power station; the peripheral climate data includes: peripheral wind speed, peripheral wind direction and peripheral wind speed maintenance time; the internal climate data includes: internal wind speed, internal wind direction, and internal wind speed maintenance time;
in step S120, it is determined whether the peripheral wind speed is monitored to be greater than the first preset wind speed v1, the peripheral wind speed maintenance time is monitored to be greater than a preset time, and the internal wind speed is monitored to be less than a second preset wind speed v2;
in step S130, when the judgment condition of step S120 is satisfied, a pre-rotation control signal is sent to the tracker; the first preset wind speed v1 is a critical wind speed value which can be born by the photovoltaic panel at an early warning position, the second preset wind speed v2 is a critical wind speed value which can be born by the photovoltaic panel at a normal tracking position, and the first preset wind speed v1 is larger than the second preset wind speed v2; the wind speed maintaining time is set for judging to screen whether the wind is continuous, if the wind speed maintaining time exceeds half a minute, the wind is continuous, and early warning protection is started;
in step S140, the photovoltaic panel is rotated to the early warning position according to the pre-rotation control signal; the early warning position is that the photovoltaic panel is between the normal tracking position and the strong wind protection position.
According to the method and the device, when the situation that strong wind exists around the power station and the wind speed inside the power station is low is analyzed and judged according to the monitored weather information around the photovoltaic power station and the monitored weather information inside the power station, the photovoltaic panel can rotate in advance to the position of the early warning angle between the normal tracking angle and the high wind protection position angle before the strong wind reaches the photovoltaic power station, the situation that the photovoltaic panel is rotated only through the weather information collected inside the photovoltaic power station under the condition that the wind speed is fast in the prior art is avoided, the photovoltaic panel cannot rotate to the high wind protection position from the normal tracking angle or the wind speed threshold value for protecting the strong wind is reduced, the high wind protection mechanism of the tracker is frequently caused by low wind, the photovoltaic panel cannot track the sun normally, and the power generation electric quantity is lost.
The present embodiment provides a method for collecting climate of a photovoltaic power station for early warning based on the previous embodiment, and step S110 further includes, after the monitoring of peripheral climate data of the photovoltaic power station and internal climate data of the photovoltaic power station:
when the peripheral wind speed is monitored to be smaller than the second preset wind speed v2, the internal wind speed is monitored to be larger than a third preset wind speed v3, the internal wind speed maintenance time is monitored to be larger than the preset time, a pre-rotation control signal is sent to the tracker, the photovoltaic panel is rotated to an early warning position, the third preset wind speed v3 is obtained by subtracting a preset safety value N from the second preset wind speed v2, and the third preset wind speed v3 meets the formula v3=v2-N.
The embodiment provides a situation that there is strong wind inside the power station but low wind speed outside, for example, the gap wind between the tracker arrays may also exceed the first preset wind speed, and the photovoltaic panel needs to be rotated to the early warning position.
In general, if wind speed monitoring is not performed at the periphery of the power station, when the wind speed is monitored to be greater than the second preset wind speed v2 in the photovoltaic power station, the tracker directly enters a strong wind protection mechanism, at this time, the tracker is converted into a strong wind protection position angle from a normal tracking state, and the problem that the rotation time of the tracker is insufficient may exist, at this time, the second preset wind speed v2 is usually a standard with higher structural design wind speed load, the requirement on structural design is higher, and the material consumption of structural materials cannot be ignored. However, under the condition that the external sentinel monitors wind speed, the information that the strong wind comes can be obtained through monitoring the surrounding climate environment, the tracker is pre-rotated to the early warning position in advance, at the moment, the safe wind speed design standard v2 of the tracker can be reduced to v3, and the safe value N also has a larger numerical space, such as 5m/s. Therefore, as the tracker in the photovoltaic power station has enough strong wind protection response time due to the monitoring of the external sentry device, the safe wind speed design standard of the tracker reduces a safe value N, and the corresponding tracker structural design and structural materials are adjusted along with the safe value N, so that the cost of the photovoltaic power station can be obviously reduced.
The embodiment provides a method for collecting climate of a photovoltaic power station for early warning on the basis of the foregoing embodiment, and step S130 sends a pre-rotation control signal to a tracker, including:
calculating to obtain the arrival time of the peripheral wind according to the peripheral wind speed and the distance from the monitoring point of the peripheral climate data to the photovoltaic panel;
setting peripheral rotation starting time according to the peripheral wind arrival time and the rotation speed of the photovoltaic panel;
and sending the pre-rotation control signal to the tracker according to the peripheral rotation starting time.
According to the embodiment, peripheral rotation starting time is set for the pre-rotation, for example, the wind speed reaches 15m/s when peripheral climate data monitoring points monitor, the distance between the peripheral climate data monitoring points and the photovoltaic panel is 9km, the strong wind reaches after 10 minutes, the rotation speed of the photovoltaic panel can be changed from a normal tracking position to a strong wind protection position within 1 minute, and therefore the photovoltaic panel can be started to rotate after 9 minutes, and the reliability of the method is improved.
Based on the foregoing embodiment, referring to fig. 2 of the present disclosure, a method for collecting climate of a photovoltaic power station for early warning is provided, where a pre-rotation control signal is sent to a tracker, and step S140 further includes, after rotating the photovoltaic panel to the early warning position according to the pre-rotation control signal:
in step S151, it is determined whether the peripheral wind speed and the internal wind speed are both monitored to be smaller than the second preset wind speed;
in step S152, when the condition of step S151 is satisfied, a normal tracking control signal is sent to the tracker, where the normal tracking control signal rotates the photovoltaic panel from the early warning position to the normal tracking position;
in step S153, it is determined whether the internal wind speed is monitored to be greater than the first preset wind speed;
in step S154, when the condition of step S153 is satisfied, a strong wind protection control signal is sent to the tracker, and the strong wind protection control signal rotates the photovoltaic panel from the early warning position to the strong wind protection position.
After the position of the early warning is adjusted, the position of the photovoltaic panel is continuously adjusted according to the monitored peripheral climate data and the monitored internal climate data, so that the protection of the photovoltaic panel in the strong wind climate and the tracking adjustment under the normal condition are completed.
The embodiment provides a method for collecting climate of a photovoltaic power station for early warning on the basis of the previous embodiment, which comprises the following steps:
counting and analyzing the peripheral wind direction and the internal wind direction within the preset wind direction collecting time to obtain wind direction probabilities of different wind directions;
according to the wind direction probabilities of different wind directions, different numbers of monitoring points are arranged in different directions around the photovoltaic power station, for example, the statistics analysis shows that the photovoltaic power station is used for scraping northeast wind frequently, more monitoring points are arranged in the northeast direction, and few or no monitoring points are arranged at positions with less wind.
In one embodiment, referring to fig. 3 and fig. 5 of the specification, the system for collecting climate of a photovoltaic power station for early warning provided by the present invention includes:
the sentry wind sensing device 20 is connected with the control device 30, is arranged at a monitoring point position which is at a preset distance from the periphery of the photovoltaic power station, and is used for monitoring peripheral climate data and sending the peripheral climate data to the control device 30; the peripheral climate data includes: peripheral wind speed, peripheral wind direction, peripheral wind speed maintenance time; the preset distance is determined by analysis of the wind speed of the regular scraping, the response time of the system and the field communication quality of the photovoltaic power station.
The main wind sensing device 10 is connected with the control device 30, is arranged inside the photovoltaic power station, and is used for monitoring internal climate data and sending the internal climate data to the control device 30; the internal climate data includes: an internal wind speed, an internal wind direction, the internal wind speed maintenance time;
the control device 30 is connected to the tracker 40 on the photovoltaic panel, and is configured to send a pre-rotation control signal to the tracker 40 when the peripheral wind speed is monitored to be greater than the first preset wind speed, the peripheral wind speed maintenance time is monitored to be greater than the preset time, and the internal wind speed is monitored to be less than the second preset wind speed;
the tracker 40 is configured to rotate the photovoltaic panel to an early warning position according to the received pre-rotation control signal; the early warning position is that the photovoltaic panel is between the normal tracking position and the strong wind protection position, and the specific visible specification is that the tracker of the attached figure 5 has different protection postures on the photovoltaic panel, and the normal tracking position is that the included angle between the photovoltaic panel and the horizontal direction is alpha 1 The early warning position is that the included angle between the photovoltaic panel and the horizontal direction is alpha 2 The position of the solar panel is that the included angle between the photovoltaic panel and the horizontal direction is alpha 3 In the prior art of sentinel-less wind sensing devices 1 Is the main working condition for determining the use of the structural material of the photovoltaic panel, and the photovoltaic panel can be rotated well before the wind comes due to the fact that the sentinel wind sensing device is arranged in the application, and alpha can be calculated 3 As the main working condition for determining the structural material of the photovoltaic panel, the material is saved and the risk is reduced.
According to the embodiment, the surrounding climate of the photovoltaic power station is monitored through the sentry wind sensing device 20, the internal climate of the photovoltaic power station is monitored through the main wind sensing device 10, compared with the prior art, the information of wind to be blown to the photovoltaic panel at high wind speed can be obtained earlier through the addition of the sentry wind sensing device 20, enough rotation time is given to the photovoltaic panel, the wind speed threshold value of the photovoltaic panel required to be rotated can be reduced due to the sufficient rotation time, the situation that the photovoltaic panel is frequently rotated, the solar cannot be normally tracked, the generated electricity is wasted, and the like is caused,
On the basis of the foregoing embodiment, referring to fig. 4 of the specification, the embodiment provides a system for collecting climate of a photovoltaic power station for early warning, including:
the sentinel wind sensing device 20 or the main wind sensing device 10 comprises an antenna arranged on the upper portion of a support, a wind sensing device arranged on the upper portion of the support and parallel to the antenna, a communication box arranged below the support, and a base for fixedly supporting the support and the communication box. The main wind sensing device can be a wind sensing device arranged in each subarray in the photovoltaic power station.
The sentinel wind sensing device 20 and the main wind sensing device 10 of this embodiment adopt the same structure, the communication box and the antenna are used for sending signals to the control device 30, and the wind sensor is used for monitoring the peripheral climate information and the internal climate information of the photovoltaic power station.
On the basis of the previous embodiment, the embodiment provides a system for collecting the climate of the photovoltaic power station for early warning,
the control device 30 is further configured to send a pre-rotation control signal to the tracker 40 when it is monitored that the peripheral wind speed is less than the second preset wind speed, and it is monitored that the internal wind speed is greater than a third preset wind speed, and the internal wind speed maintenance time is greater than the preset time, where the third preset wind speed is the second preset wind speed minus a preset safety value.
The embodiment provides another condition of strong wind inside the power station and low wind speed outside, and the photovoltaic panel needs to be rotated to the early warning position.
On the basis of the previous embodiment, the embodiment provides a system for collecting the climate of the photovoltaic power station for early warning,
the control device 30 further comprises an arithmetic unit 31, wherein the arithmetic unit 31 is further used for calculating an internal wind arrival time according to the internal wind speed and the distance from the monitoring point of the internal climate data to the photovoltaic panel;
the control device 30 is further configured to set an internal rotation start time according to the internal wind arrival time and the rotation speed of the photovoltaic panel; and transmits the pre-rotation control signal to the tracker 40 according to the internal rotation start time.
In this embodiment, an internal rotation start time is set for the pre-rotation, for example, when the internal climate data monitoring point position monitors that the wind speed reaches 15m/s and the peripheral climate data monitoring point is 4.5km away from the photovoltaic panel, the strong wind arrives after 5 minutes, and the rotation speed of the photovoltaic panel can meet the requirement that the photovoltaic panel rotates from the normal tracking position to the strong wind protection position within 1 minute, and then the photovoltaic panel is started to rotate after 4 minutes, and the difference between the internal rotation start time and the peripheral rotation start time is the time taken by wind from the position of the whistle sensor to the position of the main sensor.
On the basis of the previous embodiment, the embodiment provides a system for collecting the climate of the photovoltaic power station for early warning,
the control device 30 is further configured to send a normal tracking control signal to the tracker 40 when continuing to monitor that both the peripheral wind speed and the internal wind speed are less than the second preset wind speed, where the normal tracking control signal rotates the photovoltaic panel from the early warning position to the normal tracking position;
and when the internal wind speed is continuously monitored to be larger than the first preset wind speed, sending a high wind protection control signal to the tracker 40, wherein the high wind protection control signal rotates the photovoltaic panel from the early warning position to the high wind protection position.
After the position of the early warning is adjusted, the position of the photovoltaic panel is continuously adjusted according to the monitored peripheral climate data and the monitored internal climate data, so that the protection of the photovoltaic panel in the strong wind climate and the angle adjustment for tracking the sun under the normal condition are completed.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The method for collecting the climate of the photovoltaic power station for early warning is characterized by comprising the following steps of:
monitoring peripheral climate data of a photovoltaic power station and internal climate data of the photovoltaic power station; the peripheral climate data includes: peripheral wind speed, peripheral wind direction and peripheral wind speed maintenance time; the internal climate data includes: internal wind speed, internal wind direction, and internal wind speed maintenance time;
when the peripheral wind speed is monitored to be larger than the first preset wind speed and the peripheral wind speed maintenance time is monitored to be larger than the preset time, and the internal wind speed is monitored to be smaller than the second preset wind speed, a pre-rotation control signal is sent to a tracker; the first preset wind speed is a critical wind speed value which can be born by the photovoltaic panel at an early warning position, and the second preset wind speed is a critical wind speed value which can be born by the photovoltaic panel at a normal tracking position;
rotating the photovoltaic panel to the early warning position according to the pre-rotation control signal; the early warning position is between the normal tracking position and the high wind protection position.
2. The method for collecting climate information of a photovoltaic power plant for early warning according to claim 1, further comprising, after said monitoring the ambient climate information of the photovoltaic power plant and the internal climate information of the photovoltaic power plant:
and when the peripheral wind speed is monitored to be smaller than the second preset wind speed, and the internal wind speed is monitored to be larger than a third preset wind speed and the internal wind speed maintaining time is monitored to be larger than the preset time, a pre-rotation control signal is sent to the tracker, the photovoltaic panel is rotated to the early warning position, and the third preset wind speed is obtained by subtracting a preset safety value from the second preset wind speed.
3. The method for collecting climate information from a photovoltaic power plant for early warning according to claim 1, wherein the sending a pre-rotation control signal to the tracker further comprises:
calculating to obtain the arrival time of the peripheral wind according to the peripheral wind speed and the distance from the monitoring point of the peripheral climate data to the photovoltaic panel;
setting peripheral rotation starting time according to the peripheral wind arrival time and the rotation speed of the photovoltaic panel;
and sending the pre-rotation control signal to the tracker according to the peripheral rotation starting time.
4. A method of collecting a photovoltaic plant climate for pre-warning according to any of claims 1-3, further comprising, after said rotating said photovoltaic panel to said pre-warning position in response to said pre-rotation control signal:
when the peripheral wind speed and the internal wind speed are continuously monitored to be smaller than the second preset wind speed, a normal tracking control signal is sent to the tracker, and the normal tracking control signal rotates the photovoltaic panel from the early warning position to the normal tracking position;
and when the internal wind speed is continuously monitored to be larger than the first preset wind speed, sending a high wind protection control signal to the tracker, wherein the high wind protection control signal rotates the photovoltaic panel from the early warning position to the high wind protection position.
5. A system for collecting climate information from a photovoltaic power plant for early warning, comprising:
the sentry wind sensing device is connected with the control device, is arranged at a monitoring point position which is at a preset distance from the periphery of the photovoltaic power station, and is used for monitoring peripheral climate data and sending the peripheral climate data to the control device; the peripheral climate data includes: peripheral wind speed, peripheral wind direction, peripheral wind speed maintenance time;
the main wind sensing device is connected with the control device, is arranged in the photovoltaic power station, and is used for monitoring internal climate data and sending the internal climate data to the control device; the internal climate data includes: an internal wind speed, an internal wind direction, the internal wind speed maintenance time;
the control device is connected with the tracker and used for sending a pre-rotation control signal to the tracker when the peripheral wind speed is monitored to be larger than the first preset wind speed and the peripheral wind speed maintenance time is monitored to be larger than the preset time and the internal wind speed is monitored to be smaller than the second preset wind speed;
the tracker is used for rotating the photovoltaic panel to an early warning position according to the received pre-rotation control signal; the early warning position is between the normal tracking position and the strong wind protection position.
6. The system for collecting climate information from a photovoltaic power plant for early warning according to claim 5, wherein the sentinel wind sensing device or the main wind sensing device comprises:
the antenna is arranged on the upper portion of the support, the wind sensing device is arranged on the upper portion of the support and is parallel to the antenna, the communication box is arranged below the support, and the base is used for fixedly supporting the support and the communication box.
7. The system for pre-warning of a photovoltaic power plant climate of claim 5, wherein said primary wind sensing means is a wind sensing means disposed within each subarray of said photovoltaic power plant.
8. The system for collecting climate information from a photovoltaic power plant for early warning of claim 5, wherein:
the control device is further configured to send a pre-rotation control signal to the tracker when it is monitored that the peripheral wind speed is less than the second preset wind speed, but it is monitored that the internal wind speed is greater than a third preset wind speed, and the internal wind speed maintenance time is greater than the preset time, where the third preset wind speed is the second preset wind speed minus a preset safety value.
9. The system for collecting climate information from a photovoltaic power plant as claimed in claim 8,
the control device further comprises an arithmetic unit, wherein the arithmetic unit is further used for calculating internal wind arrival time according to the internal wind speed and the distance from the main wind sensing device to the photovoltaic panel;
the control device is also used for setting internal rotation starting time according to the internal wind arrival time and the rotation speed of the photovoltaic panel; and sending the pre-rotation control signal to the tracker according to the internal rotation start time.
10. A system for collecting climate information from a photovoltaic power plant for early warning according to any of claims 5-9, characterized in that:
the control device is further used for sending a normal tracking control signal to the tracker when the peripheral wind speed and the internal wind speed are continuously monitored to be smaller than the second preset wind speed, and the normal tracking control signal rotates the photovoltaic panel from the early warning position to the normal tracking position;
and when the internal wind speed is continuously monitored to be larger than the first preset wind speed, sending a high wind protection control signal to the tracker, wherein the high wind protection control signal rotates the photovoltaic panel from the early warning position to the high wind protection position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211693154.4A CN116009116A (en) | 2022-12-28 | 2022-12-28 | Method and system for collecting climate of photovoltaic power station for early warning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211693154.4A CN116009116A (en) | 2022-12-28 | 2022-12-28 | Method and system for collecting climate of photovoltaic power station for early warning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116009116A true CN116009116A (en) | 2023-04-25 |
Family
ID=86027755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211693154.4A Pending CN116009116A (en) | 2022-12-28 | 2022-12-28 | Method and system for collecting climate of photovoltaic power station for early warning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116009116A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117975698A (en) * | 2024-03-28 | 2024-05-03 | 水发能源集团有限公司 | High wind safety early warning device for photovoltaic power station |
-
2022
- 2022-12-28 CN CN202211693154.4A patent/CN116009116A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117975698A (en) * | 2024-03-28 | 2024-05-03 | 水发能源集团有限公司 | High wind safety early warning device for photovoltaic power station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208547349U (en) | A kind of device for monitoring inclination and system of electric power line pole tower | |
| CN103411659A (en) | Wind driven generator blade and method and system for monitoring tower barrel states | |
| CN113286944B (en) | Method and system for monitoring health state of blade root fastener | |
| CN110763270A (en) | Power transmission line tower pole working condition monitoring system based on multiple information acquisition | |
| CN116009116A (en) | Method and system for collecting climate of photovoltaic power station for early warning | |
| CN111878324A (en) | Wind power plant tower drum vortex-induced vibration early warning method and early warning system | |
| CN207703262U (en) | A kind of wisdom building site environmental monitoring system | |
| CN101931270A (en) | Method and system for protecting power transmission line | |
| CN204168005U (en) | A kind of power grid security risk evaluating system | |
| CN204168004U (en) | A kind of power grid security risk monitoring and control system | |
| CN115471965A (en) | Power transmission line area protection system and protection method | |
| KR20190083857A (en) | Power breaker system and method for thunderbolt identification sensor | |
| CN110905736A (en) | Fan operation monitoring system | |
| CN110728812A (en) | Detection and protection device for preventing external damage of power transmission line and use method thereof | |
| CN210605036U (en) | Distributed meteorological monitoring system | |
| CN210536351U (en) | Panoramic three-dimensional multifunctional intelligent sensing device based on overhead line | |
| CN113217301A (en) | Ice throwing early warning range distinguishing device, method, system and equipment for wind power plant in ice area | |
| CN205507001U (en) | Power line is to branch discharge fault detection device | |
| CN115065155B (en) | Risk early warning system of wind-powered electricity generation field booster station based on 5G communication | |
| CN111206764A (en) | Intelligent safety hanging basket | |
| CN214750766U (en) | Transformer fault data field acquisition box | |
| CN114037338A (en) | Risk early warning evaluation system based on influence on electric energy quality under natural disasters | |
| CN113757050A (en) | Wind power plant noise monitoring control system and method | |
| EP3695253B1 (en) | Method for warning about lightning activity in wind farms | |
| CN202938818U (en) | On-line monitoring system of inclination of intelligent power grid transmission line poles and towers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |