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Novel photovoltaic module monitoring unit

A photovoltaic module and monitoring unit technology, applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve the problems of DC high voltage threat power, inconvenient data collection, lack of module-level monitoring, etc.

Inactive Publication Date: 2015-09-23
无锡市恒通电器有限公司
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AI Technical Summary

Problems solved by technology

It can overcome the lack of component-level monitoring in the existing photovoltaic power generation system, the inconvenience of data collection, the threat of DC high voltage and the serious power loss, improve safety detection and realize power performance optimization

Method used

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  • Novel photovoltaic module monitoring unit

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Embodiment Construction

[0014] Such as figure 1 As shown, a schematic composition diagram of a new photovoltaic module monitoring unit provided by the present invention. It includes a photovoltaic module (100), a data acquisition control module (101), a storage battery (102), and an inverter control unit module (103).

[0015] figure 2 As shown, a data acquisition instrument (201) is connected between each photovoltaic module (200), and the input end of the data collector (202) is connected to the data acquisition instrument through RS-485. The data collector and the data collection instrument together form a data collection control module (203). The data collector transmits the collected data to the inverter controller through the first communication circuit (204).

[0016] image 3 As shown, the inverter controller (300) contains an MPPT algorithm inside, and performs optimal power calculation according to the information transmitted by the first communication circuit. The interior of the inv...

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Abstract

The invention provides a novel photovoltaic module monitoring unit. The monitoring unit is formed by a photovoltaic module, a data acquisition control module, a storage battery and an inversion control unit module. The data acquisition control module does not carry out data operation and transmits collected data to a traditional photovoltaic inversion control unit in real time via a first communication circuit so that high speed acquisition and a transmission function of the data are realized. The inversion control unit comprises a central processor, receives electric energy data transmitted by the first communication circuit, carries out operation and integration according to a system power optimization strategy and feeds back an operation result to the monitoring unit via a second communication circuit so as to coordinate an output voltage and a current of each photovoltaic module. Finally, energy output of a system is increased maximumly. Aiming at problems of inconvenient data acquisition, power consumption and safety detection existing in actual operation, the monitoring unit can conveniently carry out cluster monitoring and management on a photovoltaic power generation assembly and can conveniently complete electric power data acquisition, gathering, data analysis and network monitoring.

Description

technical field [0001] A novel photovoltaic module monitoring unit, the invention belongs to the technical field of photovoltaic power generation applications, and particularly relates to the monitoring of solar photovoltaic power generation systems. Background technique [0002] The solar photovoltaic power generation system is composed of a series of photovoltaic modules connected in series and in parallel. It is a power generation system that uses the photovoltaic effect of solar cell semiconductor materials to directly convert solar radiation energy into electrical energy. [0003] Since photovoltaic power plants are generally built on rooftops or in remote areas, it is not very convenient to check them on site. At the same time, due to the physical characteristics of photovoltaic modules, they can generate high voltage when there is sunlight, and the voltage of the string is as high as 1000V. Therefore, it brings great challenges to system maintenance personnel in term...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S50/00
CPCH02S50/00Y02E10/50
Inventor 宣敏浩秦冬雷施火泉臧培荃吴滨
Owner 无锡市恒通电器有限公司
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