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Photovoltaic power optimizer and system based on LORA wireless communication

A power optimizer and wireless communication technology, applied in photovoltaic power generation, transmission system, control/regulation system, etc., can solve the problems of strong electromagnetic interference of photovoltaic inverter, limited transmission distance, inconvenient use, etc., to achieve maximum The effect of power output, long transmission distance and effective synchronization

Pending Publication Date: 2016-10-12
江苏南能电气有限公司
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Problems solved by technology

The disadvantage of using RS485 communication is: due to the strong electromagnetic interference of photovoltaic inverters, the communication is often unreliable
However, the transmission distance of the fieldbus transmission method is limited, resulting in inconvenient use

Method used

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  • Photovoltaic power optimizer and system based on LORA wireless communication
  • Photovoltaic power optimizer and system based on LORA wireless communication

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned objectives, features, and advantages of the embodiments of the present invention more obvious and understandable, the following is a description of the present invention through the accompanying drawings and embodiments. The technical solution is described in further detail. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0029] figure 1 It is a structural diagram of the photovoltaic power optimizer based on LORA wireless communication of the present invention.

[0030] Such as figure 1 As shown, the photovoltaic power optimizer in this embodiment includes a current sensor 1, a voltage sensor 2, a temperature and humidity sensor 3, an AD conversion modul...

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Abstract

The invention relates to a photovoltaic power optimizer and system based on LORA wireless communication. The system comprises multiple photovoltaic power optimizers, an LORA gateway and an LORA server, wherein each photovoltaic power optimizer is provided with an LORA wireless communication module, point-to-point communication is achieved between each photovoltaic power optimizer and the LORA gateway through an LORA network, and each photovoltaic power optimizer is used for receiving instructions from the server, acquiring local data and sending the data to the LORA gateway according to an LORA protocol; the LORA gateway and the LORA server are connected through Ethernet, and data transmission between each photovoltaic power optimizer and the LORA server is achieved through the LORA gateway. Communication is achieved by means of the LORA wireless communication modules with high anti-interference performance and spread spectrum communication function, the problem of communication of photovoltaic power optimizers in the photovoltaic production area can be solved, data transmission reliability and long-distance transmission capacity are improved, and power consumption is reduced.

Description

Technical field [0001] The invention relates to the field of photovoltaic monitoring, in particular to a photovoltaic power optimizer and system based on LORA wireless communication. Background technique [0002] The photovoltaic power optimizer can optimize the output power of each photovoltaic module and independently perform maximum power point tracking (MPPT) for each photovoltaic module. It is a key device in the photovoltaic power generation optimization system. It has the maximum energy collection and conversion function, data collection function and communication function, and is suitable for application in grid-connected photovoltaic power generation systems of different scales. [0003] The current data collection of photovoltaic power optimizers generally adopts RS485 communication or fieldbus transmission. The disadvantage of using RS485 communication is: due to the strong electromagnetic interference of the photovoltaic inverter, the communication is often unreliable....

Claims

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Application Information

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IPC IPC(8): G05F1/67H04L29/08
CPCH04L67/12G05F1/67Y02E10/56
Inventor 赵明明张晓伟
Owner 江苏南能电气有限公司
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