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Method, terminal equipment, controller and system for maintaining photovoltaic grid-connected inverter

A technology for terminal equipment and inverters, applied in electrical components, circuit devices, etc., can solve problems such as heavy workload, personal hazards, and difficulty in maintaining photovoltaic grid-connected inverters, and achieve the effect of ensuring normal operation.

Active Publication Date: 2017-08-11
BEIJING ETECHWIN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Photovoltaic power stations are usually built in relatively remote areas such as Gobi and hills, and it is difficult for on-site staff to maintain photovoltaic grid-connected inverters (referred to as "inverters")
The main manifestations are: due to the relatively scattered layout of the inverters, the staff need to go to each machine for on-site maintenance, the workload is heavy, and the work efficiency is low; the on-site software program version upgrade requires the staff to burn each inverter. It is complicated to write new programs and upgrade software; when an inverter fails, it requires high experience of the on-site staff, and it is difficult to determine the cause of the failure; in the photovoltaic inverter room, the staff may be exposed to high voltage, which is prone to personal hazard
Although in the prior art, communication networks have been used to remotely monitor photovoltaic grid-connected inverters, most of them are limited to monitoring the operating status of inverters, and there is no maintenance operation of photovoltaic grid-connected inverters for on-site staff Specific solutions, especially on-site fault diagnosis, fault maintenance and system update, etc.

Method used

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  • Method, terminal equipment, controller and system for maintaining photovoltaic grid-connected inverter
  • Method, terminal equipment, controller and system for maintaining photovoltaic grid-connected inverter
  • Method, terminal equipment, controller and system for maintaining photovoltaic grid-connected inverter

Examples

Experimental program
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Effect test

Embodiment 1

[0041] figure 1 It is a method flow chart of an embodiment of the method for maintaining photovoltaic grid-connected inverters provided by the present invention. The execution subject of this method can be a mobile communication terminal, tablet computer, PDA or other APP application software that can be installed terminal equipment, or a chip or module integrated in the terminal equipment. Such as figure 1 As shown, the method for maintaining the photovoltaic grid-connected inverter specifically includes:

[0042] S101. Send an access request to a controller maintaining a photovoltaic grid-connected inverter through a wireless network, where the access request is used to obtain an access control authority of the controller.

[0043] Wherein, the above-mentioned controller for maintaining the photovoltaic grid-connected inverter may specifically be an existing controller provided on the photovoltaic grid-connected inverter unit for controlling and operating the photovoltaic ...

Embodiment 2

[0052] figure 2 It is a method flow chart of another embodiment of the method for maintaining a photovoltaic grid-connected inverter provided by the present invention. The execution body of the method may be a controller provided on the inverter unit and having a wireless communication function. Such as figure 2 As shown, the method for maintaining the photovoltaic grid-connected inverter specifically includes:

[0053] S201, receiving an access request sent by a terminal device through a wireless network, the access request is used to obtain the access control authority of the controller for maintaining the photovoltaic grid-connected inverter; for the specific execution process of this step, please refer to the corresponding content of step S101.

[0054] It is explained here that the wifi module integrated on the controller in this embodiment has been pre-connected to a designated AP network, and senses in real time whether there is a terminal device to access the same A...

Embodiment 3

[0063] image 3 The method flow chart of another embodiment of the method for maintaining photovoltaic grid-connected inverters provided by the present invention can be regarded as the above-mentioned figure 1 and figure 2 A specific implementation manner of combining method steps in the illustrated embodiment, the execution subject of the method involves the above-mentioned controller and terminal equipment for maintaining the photovoltaic grid-connected inverter. Such as image 3 As shown, the method for maintaining the photovoltaic grid-connected inverter specifically includes:

[0064] S301, the terminal device sends an access request to the controller maintaining the photovoltaic grid-connected inverter through the wireless network, and the access request is used to obtain the access control authority of the controller; for the specific execution process of this step, please refer to the corresponding content of step S101 or S201 .

[0065] Specifically, in order to ...

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PUM

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Abstract

Embodiments of the present invention provide a method for maintaining a photovoltaic grid-connected inverter, a terminal device, a controller, and a system. The method includes: sending an access request to the controller for maintaining the photovoltaic grid-connected inverter through a wireless network, and the access request uses To obtain the access control authority of the controller; receive a successful response to the access request returned by the controller, and log in to the controller; send maintenance operation instructions to the controller, so that the controller can perform maintenance operations on the photovoltaic grid-connected inverter according to the maintenance operation instructions Perform maintenance operations. The technical scheme of the invention realizes the efficient maintenance of the photovoltaic grid-connected inverter and ensures the normal operation of the inverter.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a method for maintaining a photovoltaic grid-connected inverter, a terminal device, a controller and a system. Background technique [0002] Photovoltaic power stations are usually built in relatively remote areas such as Gobi and hills, and it is difficult for on-site staff to maintain photovoltaic grid-connected inverters (referred to as "inverters"). The main manifestations are: due to the relatively scattered layout of the inverters, the staff need to go to each machine for on-site maintenance, the workload is heavy, and the work efficiency is low; the on-site software program version upgrade requires the staff to burn each inverter. It is complicated to write new programs and upgrade software; when an inverter fails, it requires high experience of the on-site staff, and it is difficult to determine the cause of the failure; in the photovoltaic inverter room, the staf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J13/00
Inventor 李慧浩王铁钢
Owner BEIJING ETECHWIN ELECTRIC