Offshore photovoltaic platform electric control system and floating type offshore photovoltaic platform

Abstract

The invention discloses an offshore photovoltaic platform electric control system and a floating type offshore photovoltaic platform. The offshore photovoltaic platform electric control system comprises a controller, energy consumption equipment, a voltage sensor, a current sensor and a data monitoring system. The controller is electrically connected with a photovoltaic module of the offshore photovoltaic platform, the energy consumption equipment is electrically connected with the controller to form a closed circuit, the voltage sensor is connected with the energy consumption equipment in parallel, the current sensor is connected with the energy consumption equipment in series, and the data monitoring system is electrically connected with each of the voltage sensor and the current sensor. The offshore photovoltaic platform electric control system provided by the invention has the advantage of high efficiency and reliability in data monitoring of the photovoltaic module on the floating type offshore photovoltaic platform.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore photovoltaic power generation, and in particular to an offshore photovoltaic platform electric control system and a floating offshore photovoltaic platform. Background Art

[0002] In the related technology, floating offshore photovoltaic platforms have been set up on the sea surface to better utilize solar energy resources, but floating offshore photovoltaic platforms are usually deployed in the nearshore and rarely in the deep sea. Given that the deep sea environment is different from the nearshore environment, in order to effectively utilize deep sea solar energy resources, it is necessary to significantly modify the floating offshore photovoltaic platform and conduct long-term testing on the experimental floating offshore photovoltaic platform to ensure its use in the deep sea environment. However, given that the deep sea is too far away from the land, it is not easy for the experimental floating offshore photovoltaic platform to interact with onshore equipment to complete the consumption of electricity, and thus it is impossible to efficiently and reliably complete the data testing of the floating offshore photovoltaic platform. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention provides an offshore photovoltaic platform electrical control system, which has the advantages of efficient and reliable data monitoring of photovoltaic components on a floating offshore photovoltaic platform.

[0005] An embodiment of the present invention further provides a floating offshore photovoltaic platform.

[0006] The offshore photovoltaic platform electric control system of the embodiment of the present invention includes a controller, an energy consuming device, a voltage sensor, a current sensor and a data monitoring system, wherein the controller is electrically connected to the photovoltaic components of the offshore photovoltaic platform; the energy consuming device is electrically connected to the controller to form a closed circuit; the voltage sensor is connected in parallel to the energy consuming device; the current sensor is connected in series to the energy consuming device; and the data monitoring system is electrically connected to each of the voltage sensor and the current sensor.

[0007] According to the offshore photovoltaic platform electric control system of the embodiment of the present invention, the controller adjusts the input and output of electric energy according to the status and demand of the photovoltaic components, and ensures that the output electric energy is quickly consumed when passing through the energy-consuming equipment by electrically connecting the controller to the energy-consuming equipment to form a closed circuit. In this process, the voltage sensor and the current sensor respectively monitor the voltage of the energy-consuming equipment and the current of the closed circuit, and transmit the data to the data detection system for recording and analysis. On the basis of the known parameters of the energy-consuming equipment and according to the changing trends of the voltage and current, the parameters such as the power generation efficiency of the photovoltaic components can be tested efficiently and reliably.

[0008] In some embodiments, the offshore photovoltaic platform electrical control system further includes an electrical control cabinet, and the controller, the voltage sensor, the current sensor and the data monitoring system are all installed in the electrical control cabinet.

[0009] In some embodiments, the energy-consuming device includes an energy-consuming resistor, and the energy-consuming resistor is installed in the electric control cabinet.

[0010] In some embodiments, the number of the energy-consuming resistors is multiple and connected in series with each other. The offshore photovoltaic platform electrical control system also includes multiple first automatic switches. Some of the energy-consuming devices are connected in parallel with the first automatic switches. The first automatic switches are electrically connected to the data monitoring system.

[0011] In some embodiments, the energy-consuming device includes an indicator light, and the indicator light is installed above the electric control cabinet.

[0012] In some embodiments, the offshore photovoltaic platform electrical control system further includes a battery and a second automatic switch, the battery and the second automatic switch are connected in series and in parallel with the energy dissipation resistor, and the second automatic switch is electrically connected to the data monitoring system.

[0013] In some embodiments, the offshore photovoltaic platform electric control system further includes an inverter and a charging pile, wherein the inverter is electrically connected between the battery and the charging pile, and the charging pile is installed on the side of the frame of the offshore photovoltaic platform.

[0014] In some embodiments, the offshore photovoltaic platform electrical control system further includes a first camera module, the first camera module is electrically connected to the battery and the data monitoring system, and the first camera module is installed on the outside of the electrical control cabinet.

[0015] In some embodiments, the offshore photovoltaic platform electrical control system further includes a second camera module, which is installed in the electrical control cabinet and is electrically connected to the data monitoring system.

[0016] The floating offshore photovoltaic platform according to an embodiment of the present invention includes the offshore photovoltaic platform electrical control system as described in any of the above embodiments.

[0017] The technical advantages of the floating offshore photovoltaic platform according to the embodiment of the present invention are the same as the technical advantages of the offshore photovoltaic platform electric control system of the above-mentioned embodiment, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a floating offshore photovoltaic platform according to an embodiment of the present invention.

[0019] Figure 2Schematic diagram of an offshore photovoltaic platform electrical control system according to an embodiment of the present invention.

[0020] Reference numerals:

[0021] 1. Electric control cabinet; 2. Controller; 3. Energy-consuming equipment; 4. Voltage sensor; 5. Current sensor; 6. Data monitoring system; 7. Photovoltaic module; 8. Frame; 9. First camera module; 10. Second camera module. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0023] Combine the following Figure 1 and Figure 2 An offshore photovoltaic platform electric control system according to an embodiment of the present invention is described.

[0024] The offshore photovoltaic platform electric control system of the embodiment of the present invention includes a controller 2, an energy consuming device 3, a voltage sensor 4, a current sensor 5 and a data monitoring system 6. The controller 2 is electrically connected to the photovoltaic assembly 7 of the offshore photovoltaic platform, the energy consuming device 3 is electrically connected to the controller 2 to form a closed circuit, the voltage sensor 4 is connected in parallel to the energy consuming device 3, the current sensor 5 is connected in series to the energy consuming device 3, and the data monitoring system 6 is electrically connected to each of the voltage sensor 4 and the current sensor 5.

[0025] According to the offshore photovoltaic platform electric control system of the embodiment of the present invention, the controller 2 adjusts the input and output of electric energy according to the state and demand of the photovoltaic module 7, and ensures that the output electric energy is quickly consumed when passing through the energy consuming device 3 by electrically connecting the controller 2 with the energy consuming device 3 to form a closed circuit. In this process, the voltage sensor 4 and the current sensor 5 respectively monitor the voltage of the energy consuming device 3 and the current of the closed circuit, and transmit the data to the data detection system for recording and analysis. On the basis of the known parameters of the energy consuming device 3, according to the changing trends of the voltage and current, the parameters such as the power generation efficiency of the photovoltaic module 7 can be tested efficiently and reliably.

[0026] It should be noted that the energy-consuming device 3 needs to have a sufficiently large power to quickly consume the electrical energy generated by the photovoltaic assembly 7 , thereby being able to more accurately determine the power generation efficiency of the photovoltaic assembly 7 .

[0027] In some embodiments, the offshore photovoltaic platform electrical control system further includes an electrical control cabinet 1 , in which the controller 2 , the voltage sensor 4 , the current sensor 5 and the data monitoring system 6 are all installed.

[0028] The electric control cabinet 1 separates the controller 2, the voltage sensor 4, the current sensor 5 and the data monitoring system 6 from the outside world, effectively preventing the above-mentioned electrical components from being disturbed by the complex external environment and reducing their service life and reliability.

[0029] Specifically, the electric control cabinet 1 is installed at the center of the frame 8 of the offshore photovoltaic platform, and the photovoltaic components 7 are arranged around the electric control cabinet 1 .

[0030] In some embodiments, the energy consuming device 3 includes an energy consuming resistor, and the energy consuming resistor is installed in the electric control cabinet 1 .

[0031] That is, the consumption of electric energy is realized simply by setting the energy-consuming resistor to generate heat, and the energy-consuming device 3 is easy to purchase and has low purchase cost. At the same time, it is hidden in the electric control cabinet 1, so that the protection reliability of the electric control cabinet 1 for the above closed circuit is higher.

[0032] Specifically, the energy dissipation resistor may be a common resistor or a thermistor that is positively correlated with temperature.

[0033] In some embodiments, there are multiple energy-consuming resistors connected in series. The offshore photovoltaic platform electrical control system also includes multiple first automatic switches. Some energy-consuming devices 3 are connected in parallel with the first automatic switches, and the first automatic switches are electrically connected to the data monitoring system 6.

[0034] According to different time periods of the day, the first automatic switch is turned on and off by the data detection system to control the number of energy-consuming resistors connected in series in the closed circuit, thereby controlling its energy consumption efficiency, ensuring that the time required to consume the electric energy generated by the photovoltaic component 7 is kept within the set range, thereby more reliably monitoring the parameters of the photovoltaic component 7 and better testing the impact of different weather at different times of the day on the power generation efficiency of the photovoltaic component 7.

[0035] Specifically, when it is daytime and the weather is clear, all energy-consuming resistors are connected in series in the closed circuit, and when it is night or cloudy, only a small number of energy-consuming resistors are connected in series in the closed circuit. In addition, the number of the first automatic switches is less than the number of the energy-consuming resistors, and the difference between the two numbers is one.

[0036] In some embodiments, the energy-consuming device 3 includes an indicator light, which is installed above the electric control cabinet 1 .

[0037] That is, the electric energy generated by the photovoltaic assembly 7 can be used to light up the indicator light, so as to provide a good positioning effect for the floating offshore photovoltaic platform, thereby enabling the floating offshore photovoltaic platform to complete data monitoring while being more functional.

[0038] Specifically, the energy-consuming device 3 can also be other high-power functional equipment. The indicator light is located directly above the electric control cabinet 1 and can be suspended above the electric control cabinet 1 through a vertical pole to facilitate positioning and facilitate personnel to quickly identify the location of the floating offshore photovoltaic platform.

[0039] In some embodiments, the offshore photovoltaic platform electrical control system further includes a battery and a second automatic switch, the battery and the second automatic switch are connected in series and in parallel with an energy-consuming resistor, and the second automatic switch is electrically connected to the data monitoring system 6 .

[0040] The data monitoring system 6 can also control the second automatic switch to electrically connect the battery to the controller 2 during a set time period to charge the battery and realize energy storage operation, which is convenient for powering other components of the floating offshore photovoltaic platform such as cooling fans and clearance lights.

[0041] Specifically, when charging the storage battery, all first automatic switches may be disconnected to prevent the energy-consuming resistors from consuming energy too quickly and thus prolonging the time required to fully charge the storage battery.

[0042] In some embodiments, the electric control system of the offshore photovoltaic platform further includes an inverter and a charging pile, the inverter is electrically connected between the battery and the charging pile, and the charging pile is installed on the side of the frame 8 of the offshore photovoltaic platform.

[0043] As a result, the floating offshore photovoltaic platform functions as an offshore charging station. Surface operation vessels or drones can dock on the frame 8 and connect to the charging piles so that the batteries can be charged, thereby effectively increasing their cruising range.

[0044] Specifically, the inverter is installed in the electric control cabinet 1, and the inverter is electrically connected to the charging pile through a cable. A parking platform for parking drones and / or a berth for ships are provided on the side of the frame 8.

[0045] In some embodiments, the offshore photovoltaic platform electrical control system further includes a first camera module 9 , which is electrically connected to the battery and the data monitoring system 6 , and is installed on the outside of the electrical control cabinet 1 .

[0046] The battery supplies power to the first camera module 9 to ensure that the first camera module 9 works uninterruptedly. The first camera module 9 can observe the condition of the upper surface of the photovoltaic component 7 and determine whether to clean the photovoltaic component 7 based on the cleanliness of the upper surface of the photovoltaic component 7 observed.

[0047] Specifically, the electric control cabinet 1 is in a rectangular shape, and the first camera module 9 may include four cameras, which are installed at the four corners of the upper surface of the electric control cabinet 1 .

[0048] In some embodiments, the offshore photovoltaic platform electrical control system further includes a second camera module 10 , which is installed in the electrical control cabinet 1 , and is electrically connected to the data monitoring system 6 .

[0049] The second camera module 10 is used to monitor the working status of each component in the electric control cabinet 1. When the data monitoring system 6 detects data abnormalities, it can observe whether there are any damaged components or loose connections based on the second camera module 10, and then determine the cause of the abnormality based on this, thereby facilitating maintenance personnel to better prepare and better complete the repair of the abnormality.

[0050] The floating offshore photovoltaic platform according to an embodiment of the present invention includes an offshore photovoltaic platform electrical control system as described in any of the above embodiments.

[0051] The technical advantages of the floating offshore photovoltaic platform according to the embodiment of the present invention are the same as the technical advantages of the offshore photovoltaic platform electric control system of the above-mentioned embodiment, which will not be repeated here.

[0052] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. An offshore photovoltaic platform electric control system, characterized in that: include: A controller, the controller being electrically connected to a photovoltaic module of an offshore photovoltaic platform; An energy consuming device, the energy consuming device is electrically connected to the controller to form a closed circuit; A voltage sensor, wherein the voltage sensor is connected in parallel with the energy consuming device; A current sensor, wherein the current sensor is connected in series with the energy consuming device; A data monitoring system is electrically connected to each of the voltage sensor and the current sensor.

2. The offshore photovoltaic platform electric control system according to claim 1, characterized in that: The offshore photovoltaic platform electrical control system further comprises an electrical control cabinet, in which the controller, the voltage sensor, the current sensor and the data monitoring system are all installed.

3. The offshore photovoltaic platform electric control system according to claim 2, characterized in that: The energy consumption device comprises an energy consumption resistor, and the energy consumption resistor is installed in the electric control cabinet.

4. The offshore photovoltaic platform electric control system according to claim 3, characterized in that: The number of the energy-consuming resistors is multiple and they are connected in series. The offshore photovoltaic platform electrical control system also includes multiple first automatic switches. Some of the energy-consuming devices are connected in parallel with the first automatic switches. The first automatic switches are electrically connected to the data monitoring system.

5. The offshore photovoltaic platform electric control system according to claim 2, characterized in that: The energy-consuming device comprises an indicator light, and the indicator light is installed above the electric control cabinet.

6. The offshore photovoltaic platform electric control system according to claim 2, characterized in that: The offshore photovoltaic platform electric control system also includes a storage battery and a second automatic switch. The storage battery and the second automatic switch are connected in series and in parallel with the energy-consuming resistor. The second automatic switch is electrically connected to the data monitoring system.

7. The offshore photovoltaic platform electric control system according to claim 6, characterized in that: The offshore photovoltaic platform electric control system also includes an inverter and a charging pile. The inverter is electrically connected between the battery and the charging pile. The charging pile is installed on the side of the frame of the offshore photovoltaic platform.

8. The offshore photovoltaic platform electric control system according to claim 6, characterized in that: The offshore photovoltaic platform electrical control system also includes a first camera module, which is electrically connected to the battery and the data monitoring system, and is installed on the outside of the electrical control cabinet.

9. The offshore photovoltaic platform electric control system according to claim 2, characterized in that: The offshore photovoltaic platform electrical control system also includes a second camera module, which is installed in the electrical control cabinet and is electrically connected to the data monitoring system.

10. A floating offshore photovoltaic platform, characterized in that: It comprises an offshore photovoltaic platform electric control system according to any one of claims 1-9.

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