Photovoltaic cell assembly monitoring system based on Internet of Things, acquisition terminal and power supply module

A technology of photovoltaic cells and collection terminals, applied in photovoltaic modules, photovoltaic system monitoring, photovoltaic power generation, etc., can solve the problems of large data volume in combiner boxes, inability to locate and trace faulty equipment, and unintuitive problems, achieving low power consumption, Realize the effect of intelligent identification and management and low cost

Pending Publication Date: 2022-05-13
HUNAN VOCATIONAL INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, all technologies based on LoRa communication modules have great risks and hidden dangers.
[0006] Currently commonly used combiner box cascade monitoring system, due to the large amount of data used by the combiner box and is not intuitive, it is impossible to locate and trace the faulty equipment, which provides great difficulty for monitoring personnel

Method used

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  • Photovoltaic cell assembly monitoring system based on Internet of Things, acquisition terminal and power supply module
  • Photovoltaic cell assembly monitoring system based on Internet of Things, acquisition terminal and power supply module
  • Photovoltaic cell assembly monitoring system based on Internet of Things, acquisition terminal and power supply module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1, refer to figure 1 Functional topology diagram, through the use of the lower computer control board to connect with more than 8 photovoltaic cell components, and collect the voltage and current signals of each photovoltaic cell The signal is converted into a data signal and displayed separately, and then sent to the computer for processing after being processed by the signal processing module.

[0041] At present, the experimental product uses a lower computer control board to monitor 8 photovoltaic cell components at the same time. With a little improvement, it can realize the monitoring of 16 or even 32 photovoltaic cell components in each string, which is suitable for large-scale grid-connected photovoltaic It is enough for the power station. This not only saves product costs, improves cost performance, but also saves installation difficulty and labor costs, facilitates data collection and monitoring on the network platform, and easily realizes one cont...

Embodiment 2

[0042] Embodiment 2, refer to Figure 1 to Figure 6 , each lower computer control board includes a power supply module, a sampling module, an analog-to-digital conversion module, a signal processing module and a digital display module; The signal output is connected with the signal processing module through the analog-to-digital conversion module, and is sent to the digital display module for display after being processed by the signal processing module. The rest are the same as any other embodiment of the present invention or the combination of more than two embodiments.

Embodiment 3

[0043] Example 3, see figure 2 , the power module adopts an emitter follower plus a broadband input dcdc conversion module, which includes a voltage regulator D1, a triode, a DC / DC chipset and its associated capacitor and resistor; it is composed of a voltage regulator D1, a triode and Appropriate resistors are configured to form an emitter follower to form a first-stage stabilized voltage source, which is used to obtain a stabilized DC signal of about 24V, and then sent to a filter stabilized voltage composed of HDW3 DC / DC chipset and capacitors to generate a stable DC. For related module work. Specifically, the input end of the power module is connected with the circuit of the photovoltaic battery module group to provide power for the overall circuit, and the DC output through the power module is used for the sampling module, analog-to-digital conversion module, signal processing module and digital display module. It solves the power supply problem of the module stably and...

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Abstract

The invention discloses a photovoltaic cell assembly monitoring system based on the Internet of Things, an acquisition terminal and a power supply module, belongs to a combination of intelligent hardware and a remote monitoring platform, and mainly solves the technical problems that an existing monitoring system has potential safety hazards, is not visual in display and the like. The key points of the technical scheme are as follows: an acquisition terminal system monitors and acquires signals in a grouping form, namely, the acquisition terminal system comprises data acquisition and signal display of two or more solar cell panels; according to the implementation mode, firstly, all photovoltaic cell assemblies in the photovoltaic power station are grouped, each group comprises more than two photovoltaic cell assemblies, and each group of photovoltaic cell assemblies is connected with one lower computer control panel; the signal output end of each lower computer control panel is connected with a data transmission system and then is connected to a remote monitoring platform. And each lower computer control panel is connected with and monitors 5-12 photovoltaic cell assemblies. The device has the advantages of being small in size, light in weight, easy and convenient to install, high in operation reliability and the like, is mainly applied to a photovoltaic power station to conduct real-time monitoring and alarming on a photovoltaic battery assembly, and is very suitable for large-scale installation and application of enterprises.

Description

technical field [0001] The present invention relates to a photovoltaic cell module monitoring system, in particular to a photovoltaic cell module monitoring and collection terminal and a power module based on the Internet of Things. Background technique [0002] At present, during the refined management of photovoltaic power plants, it is necessary to monitor the voltage and current of each solar panel, the temperature before and after the panel, and the on-site wind speed. These data are an important support for the operation monitoring and fault determination and maintenance of photovoltaic power plants. Photovoltaic arrays can allow short-term shading, but long-term shading will produce a heat island effect, and the panels will generate heat. Long-term accumulated heat may physically damage the panels. Therefore, it is necessary to monitor the array temperature of the panels. The monitoring methods of photovoltaic arrays mainly include direct method and indirect method; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L67/125H04L67/1095H02S50/10H02J13/00
CPCH04L67/125H04L67/1095H02S50/10H02J13/00001H02J13/00002H02J13/00006H02J13/00016H02J13/00022H02J13/00026Y02E10/50
Inventor 冯鸥曾麒邓博文刘阳平罗湘杨乐
Owner HUNAN VOCATIONAL INST OF TECH
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