Fluorescent optical fiber temperature measurement system for photovoltaic cell system

Abstract

The utility model discloses a fluorescent fiber temperature measurement system for a photovoltaic cell system, which comprises a photovoltaic cell assembly, a temperature measurement assembly and a control assembly, a plurality of temperature measurement points are selected on the photovoltaic cell assembly and used for installing temperature measurement probes of the temperature measurement assembly, and the temperature measurement assembly acquires temperature information and transmits the temperature information to the control assembly. The temperature measurement assembly comprises an excitation assembly, a conduction optical fiber, a fluorescent probe and a processing assembly, the output end of the excitation assembly is connected with the fluorescent probe through the conduction optical fiber, and the fluorescent probe is arranged at a temperature measurement point on the photovoltaic cell assembly; the fluorescent material generates different fluorescent signals at different temperatures by emitting excitation light, and finally the fluorescent signals are converted into electric signals to achieve the temperature detection effect. The fluorescent optical fiber temperature measurement system for the photovoltaic cell system has the effects of being capable of detecting and controlling the temperature condition of the photovoltaic cell assembly so as to ensure the normal work of the photovoltaic cell assembly and prolong the service life of the photovoltaic cell assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic equipment, in particular to a fluorescence optical fiber temperature measurement system for a photovoltaic cell system. Background Art

[0002] At present, in photovoltaic cell modules, common temperature monitoring technologies have many defects. Traditional indirect measurement methods measure the water temperature through a waterway system, but there is a problem of large error due to the heat transfer delay and uncertainty between the water temperature and the surface temperature of the battery. Equipment such as infrared thermal imagers is costly and not suitable for large-scale applications. Some technologies are unstable in high-temperature environments and cannot achieve real-time monitoring and control, affecting the power generation efficiency and service life of photovoltaic cells. Therefore, a new technology is needed to solve these problems. Content of the Utility Model

[0003] In view of the above problems, a fluorescence optical fiber temperature measurement system for a photovoltaic cell system is provided, aiming to solve the problems existing in the prior art.

[0004] The specific technical solution is as follows:

[0005] A fluorescence optical fiber temperature measurement system for a photovoltaic cell system includes a photovoltaic cell module, a temperature measurement module, and a control module. Multiple temperature measurement points are selected on the photovoltaic cell module for installing the temperature measurement probes of the temperature measurement module. After the temperature measurement module collects temperature information, it transmits it to the control module. The temperature measurement module includes an excitation module, a conduction optical fiber, a fluorescence probe, and a processing module. The output end of the excitation module is connected to the fluorescence probe through the conduction optical fiber. The fluorescence probe is arranged at the temperature measurement point on the photovoltaic cell module. The output end of the fluorescence probe is connected to the input end of the processing module through the conduction optical fiber. The output end of the processing module is electrically connected to the input end of the control module.

[0006] The above-mentioned fluorescence optical fiber temperature measurement system for a photovoltaic cell system further has the following characteristics. The excitation module includes an optical drive circuit, an excitation light source, and an optical path coupling module. The output end of the optical drive circuit is electrically connected to the input end of the excitation light source. The output end of the excitation light source is connected to the input end of the optical path coupling module. The output end of the optical path coupling module is connected to the input end of the fluorescence probe through the conduction optical fiber.

[0007] Beneficial effects of the above solution: The optical drive circuit receives an external control signal and outputs a drive signal to the excitation light source. After receiving the drive signal, the excitation light source emits an optical signal. After the optical signal is coupled, it is output to irradiate the fluorescence probe.

[0008] The above-mentioned fluorescence optical fiber temperature measurement system for a photovoltaic cell system further has the following characteristics. The processing component includes a photoelectric conversion module, an electrical signal processing module, a lifetime detection module, and a data processing module. The output end of the fluorescence probe is electrically connected to the input end of the photoelectric conversion module through the conduction optical fiber. The output end of the photoelectric conversion module is electrically connected to the input end of the electrical signal processing module. The output end of the electrical signal processing module is electrically connected to the input end of the lifetime detection module. The output end of the lifetime detection module is electrically connected to the input end of the data processing module. The output end of the data processing module outputs the real-time temperature to the control component.

[0009] Beneficial effects of the above solution: The fluorescence signal is converted into an electrical signal after photoelectric conversion. The electrical signal is modulated to reduce interference, and finally accurate temperature information is obtained by calculating based on the modulated electrical signal.

[0010] The above-mentioned fluorescence optical fiber temperature measurement system for a photovoltaic cell system further has the following characteristics. The fluorescence probe includes an excitation light receiving part, a fluorescent material, and a fluorescence receiving part. The excitation light receiving part is connected to the output end of the optical path coupling module through the conduction optical fiber. The output end of the excitation light receiving part is aligned with the fluorescent material so that the excitation light irradiates the fluorescent material at a specific angle. The fluorescence receiving part is aligned with the fluorescent material at a certain angle to receive the fluorescence signal emitted by the fluorescent material and transmit the fluorescence signal to the photoelectric conversion module.

[0011] Beneficial effects of the above solution: The fluorescence probe temperature measurement has very good stability, lower cost, and is more suitable for large-scale applications.

[0012] In summary, the beneficial effects of this solution are:

[0013] In the fluorescence optical fiber temperature measurement system for a photovoltaic cell system provided by the present invention, by emitting excitation light, the fluorescent material generates different fluorescence signals at different temperatures, and finally the fluorescence signal is converted into an electrical signal to achieve the effect of temperature detection. The fluorescence optical fiber temperature measurement system for a photovoltaic cell system provided by the present invention has the effect of detecting and controlling the temperature of the photovoltaic cell module to ensure its normal operation and extend its service life. Description of the Drawings

[0014] Figure 1 It is a system structure block diagram of the fluorescence optical fiber temperature measurement system for a photovoltaic cell system of the present invention. Detailed Embodiments

[0015] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work fall within the scope of protection of the present utility model.

[0016] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0017] The present utility model will be further described below in conjunction with specific embodiments, but it is not limited to the present utility model.

[0018] Figure 1 is a system structure block diagram of the fluorescence optical fiber temperature measurement system for the photovoltaic cell system of the present utility model. As Figure 1 shown, the fluorescence optical fiber temperature measurement system for the photovoltaic cell system provided in this embodiment includes a photovoltaic cell assembly, a temperature measurement assembly, and a control assembly. Multiple temperature measurement points are selected on the photovoltaic cell assembly for installing the temperature measurement probes of the temperature measurement assembly. After the temperature measurement assembly collects the temperature information, it transmits it to the control assembly. The temperature measurement assembly includes an excitation assembly, a conduction optical fiber, a fluorescence probe, and a processing assembly. The output end of the excitation assembly is connected to the fluorescence probe through the conduction optical fiber. The fluorescence probe is arranged at the temperature measurement point on the photovoltaic cell assembly. The output end of the fluorescence probe is connected to the input end of the processing assembly through the conduction optical fiber. The output end of the processing assembly is electrically connected to the input end of the control assembly.

[0019] It should be noted that the photovoltaic cell assembly includes a photovoltaic part and a cooling part. When the temperature measurement assembly collects the temperature signal, it transmits the temperature signal to the control assembly. The control assembly controls the cooling part according to the temperature signal so that the temperature of the photovoltaic part is kept as low as possible below the preset value.

[0020] In the above embodiment, the excitation assembly includes an optical drive circuit, an excitation light source, and an optical path coupling module. The output end of the optical drive circuit is electrically connected to the input end of the excitation light source. The output end of the excitation light source is connected to the input end of the optical path coupling module. The output end of the optical path coupling module is connected to the input end of the fluorescence probe through the conduction optical fiber.

[0021] In the above embodiment, the processing assembly includes a photoelectric conversion module, an electrical signal processing module, a lifetime detection module, and a data processing module. The output end of the fluorescence probe is electrically connected to the input end of the photoelectric conversion module through the conduction optical fiber. The output end of the photoelectric conversion module is electrically connected to the input end of the electrical signal processing module. The output end of the electrical signal processing module is electrically connected to the input end of the lifetime detection module. The output end of the lifetime detection module is electrically connected to the input end of the data processing module. The output end of the data processing module outputs the real-time temperature to the control assembly.

[0022] In the above embodiments, the fluorescence probe includes an excitation light receiving part, a fluorescent material, and a fluorescence receiving part. The excitation light receiving part is connected to the output end of the optical path coupling module through a conduction optical fiber. The output end of the excitation light receiving part is aligned with the fluorescent material so that the excitation light irradiates the fluorescent material at a specific angle. The fluorescence receiving part is aligned with the fluorescent material at a certain angle to receive the fluorescence signal emitted by the fluorescent material and transmit the fluorescence signal to the photoelectric conversion module.

[0023] Working principle: Select several key positions on the surface of the photovoltaic cell module, and install the fluorescence probe at the above positions for temperature measurement. The light driving circuit receives an external control signal and outputs a driving signal to the excitation light source. After receiving the driving signal, the excitation light source emits an optical signal. The optical signal is coupled and then output to irradiate the fluorescence probe. After the fluorescent material is irradiated, due to different temperatures of the fluorescent material, the generated fluorescence signals will also be different. After the fluorescence signal is subjected to photoelectric conversion to obtain an electrical signal, the electrical signal is amplified and filtered, and then the corresponding temperature information is calculated. Finally, the temperature information is transmitted to the control component as the basis for adjusting the cooling device of the photovoltaic cell module to improve the service life of the photovoltaic cell module and ensure real-time monitoring of the temperature of the surface of the photovoltaic cell module.

[0024] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be able to realize that any equivalent replacement and obvious changes made by using the content of the specification of the present invention should be included in the protection scope of the present invention.

Claims

1. A fluorescence optical fiber temperature measurement system for a photovoltaic cell system, comprising a photovoltaic cell assembly, a temperature measurement assembly and a control assembly. A plurality of temperature measurement points are selected on the photovoltaic cell assembly for installing the temperature measurement probes of the temperature measurement assembly. After the temperature measurement assembly collects temperature information, it transmits the information to the control assembly. It is characterized in that: The temperature measurement component includes an excitation component, a conduction optical fiber, a fluorescence probe, and a processing component. The output end of the excitation component is connected to the fluorescence probe through the conduction optical fiber. The fluorescence probe is arranged at the temperature measurement point on the photovoltaic cell component. The output end of the fluorescence probe is connected to the input end of the processing component through the conduction optical fiber. The output end of the processing component is electrically connected to the input end of the control component.

2. The fluorescence optical fiber temperature measurement system for a photovoltaic cell system according to claim 1, wherein: The excitation component includes an optical drive circuit, an excitation light source, and an optical path coupling module. The output end of the optical drive circuit is electrically connected to the input end of the excitation light source. The output end of the excitation light source is connected to the input end of the optical path coupling module. The output end of the optical path coupling module is connected to the input end of the fluorescence probe through the conduction optical fiber.

3. A fluorescence optical fiber temperature measurement system for a photovoltaic cell system according to claim 2, characterized in that: The processing component includes a photoelectric conversion module, an electrical signal processing module, a lifetime detection module, and a data processing module. The output end of the fluorescence probe is electrically connected to the input end of the photoelectric conversion module through the conduction optical fiber. The output end of the photoelectric conversion module is connected to the input end of the electrical signal processing module. The output end of the electrical signal processing module is connected to the input end of the lifetime detection module. The output end of the lifetime detection module is connected to the input end of the data processing module. The output end of the data processing module outputs the real-time temperature to the control component.

4. A fluorescence optical fiber temperature measurement system for a photovoltaic cell system according to claim 3, characterized in that: The fluorescence probe includes an excitation light receiving part, a fluorescent material, and a fluorescence receiving part. The excitation light receiving part is connected to the output end of the optical path coupling module through the conduction optical fiber. The output end of the excitation light receiving part is aligned with the fluorescent material so that the excitation light irradiates the fluorescent material at a specific angle. The fluorescence receiving part is aligned with the fluorescent material at a certain angle to receive the fluorescence signal emitted by the fluorescent material and transmit the fluorescence signal to the photoelectric conversion module.

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